CN100492116C - Display device - Google Patents

Display device Download PDF

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Publication number
CN100492116C
CN100492116C CNB2005101248791A CN200510124879A CN100492116C CN 100492116 C CN100492116 C CN 100492116C CN B2005101248791 A CNB2005101248791 A CN B2005101248791A CN 200510124879 A CN200510124879 A CN 200510124879A CN 100492116 C CN100492116 C CN 100492116C
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CN
China
Prior art keywords
base plate
earthing component
circuit board
receiving vessel
ground
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CNB2005101248791A
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Chinese (zh)
Other versions
CN1779517A (en
Inventor
池安祜
李建斌
金东焕
安亨哲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Display Co Ltd
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Samsung Electronics Co Ltd
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Publication date
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Publication of CN1779517A publication Critical patent/CN1779517A/en
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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133334—Electromagnetic shields
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2202/00—Materials and properties
    • G02F2202/22—Antistatic materials or arrangements

Abstract

A receiving container for a display device includes a bottom plate, a sidewall and a grounding unit. The sidewall is extended from the bottom plate to define a receiving space. The grounding unit is integrally formed with the bottom plate. The grounding unit includes a grounding member that grounds a circuit board received in the receiving space. The circuit board includes a grounding electrode and the grounding member corresponds to the grounding electrode. The grounding member is formed on a rear surface of the bottom plate. The grounding member may include a protrusion or a projected portion having an elastic structure.

Description

Display
Technical field
The present invention relates to a kind of receiving vessel that is used for display and have the LCD of this receiving vessel.More specifically, the present invention relates to a kind of receiving vessel that can improve grounding characteristics that is used for display and have the LCD of this receiving vessel.
Background technology
Usually, the utilization of liquid crystal display (LCD) device is installed in the electricity and the light characteristic display image of liquid crystal there.The LCD device is compared with cathode ray tube (CRT) has multiple advantage, and for example, thin thickness, volume is little and in light weight.Therefore, the LCD device is widely used in portable computer, communication apparatus, televisor or the like.
The LCD device comprises the liquid crystal control module of controlling liquid crystal and the light feeding unit of giving the liquid crystal supply light.For example, the LCD device comprises as the liquid crystal panel of liquid crystal control module with as the backlight assembly of light feeding unit.
The LCD device also comprises the driver element that drives the LCD panel.Driver element comprises flexible print circuit (FPC).Electrostatic Discharge and the electromagnetic interference (EMI) of the FPC ground connection of LCD device to prevent that driving circuit mounted thereto from producing in LCD.
LCD uses conductive double-sided tape to make FPC by holding the chassis earth of backlight assembly.Detailed says, insulation course forms between FPC and backlight assembly, and insulation course is partly removed then, and the double sticky tape of conduction replaces the insulation course of removing like this.Therefore, FPC and chassis are electrically connected to each other, and make FPC ground connection.
Alternatively, between chassis that holds backlight assembly and FPC, form the gap.The gap has replaced above-mentioned conductive double-sided tape.Therefore, though chassis and FPC do not contact with each other, thereby because the High Pressure Difference between the there has caused spark to produce grounded circuit, make FPC ground connection.
Yet using the shortcoming of the earthing method existence of conductive double-sided tape is that the manufacturing cost of LCD device increases and the manufacturing process complexity.Use the earthing method in gap to exist more shortcoming to be, FPC is irregular and unsettled.
Summary of the invention
The invention provides a kind of receiving vessel that can improve the circuit board grounding characteristics that is used for display.
The present invention also provides a kind of display that can improve the circuit board grounding characteristics.
The present invention also provides a kind of LCD device that can improve the circuit board grounding characteristics.
In one embodiment, the receiving vessel that is used for display comprises base plate, sidewall and ground unit.Sidewall extends in order to determine to receive the space from base plate.Ground unit and base plate monolithic molding.
In another specific embodiment, display comprises display panel, circuit board and receiving vessel.The display panel display image.Circuit board provides drive signal to display panel.Receiving vessel holds display panel.Receiving vessel comprise base plate, from base plate extend in order to the sidewall of determining to receive the space and with the integrally formed ground unit of base plate.
In another specific embodiment, display comprises display panel, receiving vessel and circuit board.The display display image.Receiving vessel holds display panel.Receiving vessel comprises base plate and extends in order to determine to receive the sidewall in space from base plate.Circuit board provides drive signal to display panel.Circuit board comprise substrate and with the integrally formed earthing component of substrate.Earthing component is outstanding to contact with base plate from substrate.
In another specific embodiment, the LCD device comprises backlight assembly, LCD panel, FPC and receiving vessel.Back light unit provides light.The LCD panel utilizes light display image.FPC provides drive signal for the LCD panel.Receiving vessel holds the LCD panel.Receiving vessel comprise base plate, from base plate extend in order to the sidewall of determining to receive the space and with the integrally formed ground unit of base plate.
In another specific embodiment, the LCD device comprises backlight assembly, LCD panel, receiving vessel and circuit board.Back light unit provides light.The LCD panel utilizes light display image.Receiving vessel holds the LCD panel.Receiving vessel comprises base plate and extends in order to determine to receive the sidewall in space from base plate.Circuit board provides drive signal for the LCD panel.Circuit board comprise substrate and with the integrally formed earthing component of substrate.Earthing component is outstanding to contact with base plate from substrate.
Advantageously, the manufacturing cost of LCD device can reduce and ground structure can be simplified.The FPC of LCD device can be regularly and ground connection stably, makes grounding characteristics to improve.The ESD and the EMI that produce from FPC can remove rapidly by ground structure.
Description of drawings
By the following detailed description of reference with accompanying drawing, the above and other advantage of the present invention will become obvious.Wherein:
Fig. 1 is the decomposition diagram that the specific embodiment of LCD device according to the present invention is shown;
Fig. 2 is the inverted perspective view (upside-down perspective) that the LCD among Fig. 1 is shown;
Fig. 3 is the decomposition diagram that the specific embodiment of FPC and receiving vessel among Fig. 2 is shown;
Fig. 4 is the sectional view of being got along Fig. 3 center line I-I ';
Fig. 5 is the sectional view that illustrates according to another specific embodiment of the FPC of LCD device of the present invention and receiving vessel;
Fig. 6 is the decomposition diagram that illustrates according to another specific embodiment of the FPC of LCD device of the present invention and receiving vessel;
Fig. 7 A and 7B are the sectional views of being got along Fig. 6 center line II-II ';
Fig. 8 is the decomposition diagram that illustrates according to another specific embodiment of the FPC of LCD device of the present invention and receiving vessel;
Fig. 9 is the sectional view of being got along Fig. 8 center line III-III ';
Figure 10 is the sectional view that illustrates according to another specific embodiment of the receiving vessel of FPC of the present invention and LCD;
Figure 11 A and 11B are the sectional views that illustrates according to another specific embodiment of the FPC of LCD device of the present invention and receiving vessel; With
Figure 12 A and 12B are the sectional views that illustrates according to another specific embodiment of the FPC of LCD device of the present invention and receiving vessel.
Embodiment
Describe specific embodiment below with reference to accompanying drawings more fully, wherein show embodiments of the invention.Yet the present invention may be embodied as many multi-form, and should not be construed the embodiment that is confined to provide herein; On the contrary, provide these embodiment to make that the disclosure is comprehensive and complete, and passed on scope of the present invention fully to those skilled in the art.Identical reference number is represented similar or similar elements all the time.
Should be appreciated that, when element or layer be called as another element or layer " on " or " being connected to " another element or when layer, this element or the layer can be located immediately at another element or the layer or between two parties element or the layer on, be directly connected to another element or the layer or between two parties element or the layer.On the other hand, when an element be called as " directly existing " another element or layer " on " or " being directly connected to " another element or when layer, do not have element or layer between two parties.
Should be appreciated that though the noun first, second, third, etc. can be with here to describe different elements, assembly, zone, layer and/or part, these elements, assembly, zone, layer and/or part are not limited to these nouns.These nouns just be used to an element, assembly, zone, layer or part from another zone, layer or partly distinguish.Therefore, first element of discussing below, assembly, zone, layer or part can be called as second element, assembly, zone, layer or part, and the instruction that does not break away from the embodiment that illustrates.Such as D score, " on ", the noun of space correlation such as " back ", for convenience of description can be with here to be described in the relation of element shown in the figure or part (feature) and another element or part.Should be appreciated that except the orientation of describing among the figure, the noun that the space is relevant in using or operating is defined as the device that comprises different azimuth.For example, if device overturns in the drawings, the element that is described as other element or part D score will be oriented at other element or part " on ".Therefore, embodiment noun D score can comprise top and following two kinds of orientation.Device can be by the descriptor of in addition directed (turn over turn 90 degrees or in other orientation) and space correlation with here with explanation.
With the term here just in order to describe specific embodiment rather than to be defined as restriction of the present invention.When with here the time, unless content points out that clearly otherwise singulative " " and " being somebody's turn to do " also are defined as plural form.Should also be appreciated that, noun " comprises " refering in particular to and has described part, integral body, step, operation, element and/or assembly when using in instructions, does not exist or increases one or more other parts, integral body, step, operation, element, assembly and/or their combination but do not get rid of.
With reference to the sectional view that idealized embodiment of the present invention (and intermediate structure) is shown embodiments of the invention have been described.Same, can expect from the modification that illustrated shape produces as the result of for example manufacturing technology and/or tolerance.Therefore, embodiments of the invention should not be construed as the F-SP in the zone that is confined to illustrate herein, but will comprise that the shape that for example manufacturing causes deviates from.
Fig. 1 is the decomposition diagram that the LCD specific embodiment according to the present invention is shown.Fig. 2 is the inverted perspective view that the LCD among Fig. 1 is shown.
With reference to Fig. 1, LCD 1000 comprises back light unit 100, display unit 200, receiving vessel 300 and chassis 400.
Back light unit 100 is luminous to provide light to display unit 200.Back light unit 100 comprises luminous component 110, light guide plate 120, optical component 130 and model framework 140.
Luminous component 110 comprises a plurality of light emitting diodes (LED) 112 and printed circuit board (PCB) (PCB) 114.PCB 114 is arranged on the LED 112 and is configured to be provided for luminous voltage and gives LED 112.
The photoconduction that light guide plate 120 produces luminous component 110 is to optical component 130.Light guide plate 120 is to have the light that surface-type distributes with the phototransformation with point type distribution that LED 112 produces.
In specific embodiment, light guide plate 120 can have basic dull and stereotyped profile makes light guide plate 120 have uniform thickness.The thickness of light guide plate 120 basic with from its near the end of LED 112 to being of uniform thickness its another relative with this end substantially end.
In optional embodiment, light guide plate 120 can have wedge shape.The thickness of light guide plate 120 can reduce to its another basic end relative with this end gradually from one end thereof.
The light that light guide plate 120 produces has low slightly brightness uniformity.When back light unit 110 comprised light guide plate 120, back light unit 100 can not provide enough light to show high-quality image.For solving this shortcoming, back light unit 100 can comprise optical component 130.Optical component can comprise light diffusion sheet, prismatic lens and two brightness brightness enhancement film (dual brightness enhancement film) (DBEF).Advantageously, light diffusion sheet can increase from the brightness uniformity of the light of light guide plate 120 generations, and prismatic lens can improve the visual angle of display image.In addition, DBEF can increase the brightness and the visual angle of display image.
With reference to Fig. 1, model framework 140 can have the basic framework profile.Model framework 140 holds and supports optical component disposed thereon 130.Model framework 140 also holds and supports the light guide plate 120 that is placed on its underpart.PCB 114 is arranged on the sidepiece of model framework 140.LED 112 is arranged in the groove of a plurality of sidepieces that are formed on model framework 140.
In specific embodiment, back light unit 100 can comprise the light-reflecting sheet (not shown).Light-reflecting sheet is arranged on below the light guide plate 120.The light-reflecting sheet reflection is 120 light that leak from light guide plate 120 to the light guide plate.
Refer again to Fig. 1, display unit 200 utilizes the light display image that produces from back light unit 100.Display unit 200 comprises LCD panel 210, chip for driving 220 and FPC230.
LCD panel 210 comprise thin film transistor (TFT) (TFT) substrate 212, colored optical filtering substrates 214 and be inserted in TFT substrate 212 and colored filter substrate 214 between the liquid crystal layer (not shown).
TFT substrate 212 can comprise the pixel electrode (not shown) that is arranged as rectangular, TFT (not shown), gate line (not shown) and the data line (not shown) of driving voltage are provided to pixel electrode.
Colored filter substrate 214 can comprise towards the colored filter of pixel electrode that forms on TFT substrate 212 and the common electrode (not shown) that forms on colored filter.
FPC 230 provides drive signal to drive LCD panel 210.Chip for driving 220 is arranged on the TFT substrate 212 will offer the time of LCD panel 210 from the drive signal that FPC 230 provides with control.For example, chip for driving 220 can comprise that (COG), chip for driving 220 can be formed directly on the LCD panel 210 glass flip chip (chip on glass) thus.
With reference to Fig. 2, FPC 230 is flexible, make FPC to the bending of the rear surface of receiving vessel 300 with mounted thereto.Shown in Fig. 1 and 2 first, second and third direction point out the direction substantially parallel with the major axis of LCD panel 210 respectively, with the substantially parallel direction of the minor axis of LCD panel 210 with from the light direction that advances of back light unit 100 to LCD panels 210.
Referring now to Fig. 1, receiving vessel 300 holds back light unit 100 and display unit 200 successively.Receiving vessel 300 comprises base plate 310 and a plurality of sidewall 320.Sidewall 320 can and extend from base plate 310 along third direction to determine to receive the space with base plate 310 monolithic moldings.The rear surface monolithic molding of the base plate 310 of earthing component 330 and receiving vessel 300 is to be grounding to receiving vessel 300 with FPC 230.
Chassis 400 surrounds the marginal portion of LCD panel 210.Chassis 400 and receiving vessel 300 assemblings.Chassis 400 is protected LCD panel 210 basically and is prevented moving of LCD panel 210.
Hereinafter, the ground structure of FPC 230 is described with reference to the accompanying drawings more fully.In the illustrated embodiment, the ground structure of the FPC 230 of driving LCD panel 210 will be described.Yet in optional embodiment, the multiple circuit board of LCD 1000 can use ground structure.
Fig. 3 is the decomposition diagram that the specific embodiment of FPC among Fig. 2 and receiving vessel is shown.Fig. 4 is the sectional view of being got along Fig. 3 center line I-I '.
With reference to Fig. 3 and 4, FPC230 is placed on the rear surface of receiving vessel 300.FPC 230 is flexible, make FPC 230 to the bending of the rear surface of receiving vessel 300 with mounted thereto.
FPC 230 comprises that substrate 232 and at least one are formed on the ground-electrode 234 in the substrate 232.In the illustrated embodiment, FPC 230 has three ground-electrodes 234.In optional embodiment, the number of ground-electrode 234 can be greater or less than 3.For example, FPC 230 can have a ground-electrode 234 on the second direction that is arranged on FPC 230 basically.
Ground-electrode 234 contacts with the earthing components of giving prominence to from the base plate 310 of receiving vessel 300 330.Earthing component 330 is corresponding with ground-electrode 234.In the illustrated embodiment, earthing component 330 has basic rectangular-plate-shaped.Rank shape partly is formed between base plate 310 and the earthing component 330.Earthing component 330 contacts with ground-electrode 234.
FPC 230 also comprises the insulation course 236 from receiving vessel 300 electrical isolations FPC 230.Insulation course 236 is formed in the substrate 232 to prevent that the multiple circuitous pattern that is formed in the substrate 232 is electrically connected to the base plate 310 of receiving vessel 300.Opening corresponding to earthing component 330 passes insulation course 236 formation.Place the part of the insulation course 236 of ground-electrode 234 thereon and opened wide, made ground-electrode 234 and corresponding thereunto earthing component 330 to be electrically connected to each other.For example, the opening of insulation course 236 can be formed on the FPC 230 corresponding to base plate 310 peripheries, and earthing component 330 is placed on the periphery of base plate 310.In optional embodiment, all places of opening and earthing component 330 can be expected.
Insulation course 236 combines with the substrate 232 of FPC 230 by the first adhesion member 236a, and combines with the substrate 310 of receiving vessel 300 by the second adhesion member 236b.The first and second adhesion member 236a and 236b can comprise bonding agent or double faced adhesive tape strap.In specific embodiment, the first and second adhesion member 236a and 236b can be the materials of identical or different type.For example, in the illustrated embodiment, the first and second adhesion member 236a of Fig. 4 and 236b are respectively bonding agent and double faced adhesive tape strap.
In another specific embodiment, earthing component 330 and receiving vessel 300 can comprise for example conductive material of metal.Advantageously, the ESD and the EMI of FPC 230 generations can remove to receiving vessel 300 rapidly by earthing component 330.
In optional embodiment, earthing component 330 can comprise the conductive elastomer such as conductive rubber, makes earthing component 330 more closely to contact with ground-electrode 234.
Fig. 5 illustrates the FPC of another specific embodiment of LCD device according to the present invention and the sectional view of receiving vessel.Except that earthing component, the LCD device one exemplary embodiment LCD device with Fig. 1-4 basically is identical.Therefore, any further description of basic identical element will be omitted.
With reference to Fig. 5, earthing component 332 comprises at least one outstanding 332a.In an exemplary embodiment, a plurality of outstanding 332a are outstanding from the base plate 310 of receiving vessel 300.For be formed on FPC230 on ground-electrode 234 contact, outstanding 332a is outstanding to FPC230.
Earthing component 332 is corresponding to ground-electrode 234, and outstanding 332a contacts with ground-electrode 234.For example, earthing component 332 is placed on the periphery of base plate 310.In optional embodiment, can expect the various diverse locations of earthing component 332.
In specific embodiment, earthing component 332 and receiving vessel 300 can comprise the conductive material such as metal.Advantageously, the ESD and the EMI of FPC 230 generations can remove to receiving vessel 300 rapidly by earthing component 332.
In some optional embodiment, earthing component 332 can comprise conductive elastomer, conductive rubber for example, and like this, earthing component 332 can form more firm contacting with ground-electrode.
Fig. 6 illustrates according to the FPC of the specific embodiment of LCD device of the present invention and the decomposition diagram of receiving vessel.Fig. 7 A and 7B are the sectional views of being got along Fig. 6 center line II-II '.Fig. 7 A and 7B be illustrated in respectively FPC be arranged on the receiving vessel before and the FPC and the receiving vessel of LCD device afterwards.Except that earthing component, the LCD of the one exemplary embodiment LCD with Fig. 1-4 basically is identical.Therefore, any further description of basic identical element will be omitted.
With reference to Fig. 6 and 7B, FPC 230 has 3 ground-electrodes 234 in an exemplary embodiment.In optional embodiment, many ground-electrodes 234 can be greater or less than 3.For example, ground-electrode 234 can have a ground-electrode 234 that extends to second direction basically.Ground-electrode 234 contacts with the earthing component of giving prominence to from the base plate 310 of receiving vessel 300 334.Earthing component 334 is corresponding to ground-electrode 234.
In the illustrated embodiment, an end of earthing component 334 contacts with base plate 310, and another end of earthing component and base plate 310 separate.As shown in Figure 6, in order to contact, can comprise contact portion with basic rectangular slab character from the end that base plate 310 separates with ground-electrode 234.In the illustrated embodiment, earthing component 334 can be arranged on the periphery of base plate 310 of receiving vessel 300.Yet, also can expect the various diverse locations of earthing component 334.
With reference to Fig. 7 A and 7B, earthing component 334 is corresponding to the projection on the base plate 310 that is formed on receiving vessel 300.Earthing component 334 comprises the extension and the contact portion that contacts with ground-electrode 234 of extending to FPC 230.The oblique FPC 230 in extension extends, and contact portion is basic and FPC 230 extends abreast.
Be placed on the base plate 310 of receiving vessel 300 at FPC 230 before, earthing component 334 has greater than first height corresponding to second height of the gross thickness of the first adhesion member 236a, insulation course 236 and the second adhesion member 236b.Yet after FPC 230 was placed on the base plate 310 of receiving vessel 300, earthing component 334 had basically and second the 3rd highly identical height.In specific embodiment, because earthing component 334 can have elastic construction, earthing component 334 supports FPC230 basically.Advantageously, earthing component 334 can contact more firmly with ground-electrode 234.
In the illustrated embodiment, to as shown in the 7B, earthing component 334 is from the core part extension to the periphery of the rear surface of base plate 310 as Fig. 6.Perhaps, earthing component 334 can extend to core from the periphery of the rear surface of base plate 310.
In specific embodiment, earthing component 334 and receiving vessel 300 can comprise the conductive material such as metal.Advantageously, the ESD and the EMI of FPC 230 generations can remove to receiving vessel 300 rapidly by earthing component 334.
In optional embodiment, earthing component 334 can comprise the conductive elastomer such as conductive rubber, makes earthing component 334 more closely to contact with ground-electrode 234.
Fig. 8 illustrates according to the FPC of another specific embodiment of LCD device of the present invention and the decomposition diagram of receiving vessel.Fig. 9 is the sectional view of being got along Fig. 8 center line III-III '.Except that insulation course and receiving vessel, the LCD of the one exemplary embodiment LCD with Fig. 6,7A and 7B basically is identical.
Reference as 8 and 9, receiving vessel 300a comprises base plate 310a and a plurality of sidewall 320a.Sidewall 320a can and extend from base plate 310a along third direction to determine to receive the space with base plate 310a monolithic molding.Insulation course 236 is forming to prevent that the multiple circuitous pattern that is formed in the substrate 232 is electrically connected to the base plate 310a of receiving vessel 300a in the substrate 232.In specific embodiment, can pass insulation course 236 corresponding to the opening of earthing component 334a and form.Place the part of the insulation course 236 of ground-electrode 234 thereon and opened wide, made ground-electrode 234 and corresponding thereunto earthing component 334a to be electrically connected to each other.In optional embodiment, the opening of insulation course 236 can be formed on the FPC that is connected to its sweep.As shown in Fig. 9 and 10, earthing component 334a is placed on the end of the base plate 310a of FPC 230 sweeps.Advantageously, do not need the opening process of insulation course 236, make the manufacturing process of LCD device 1000 to be simplified.
Insulation course 236 combines with the substrate 232 of FPC 230 by the first adhesion member 236a, and combines with the base plate 310a of receiving vessel 300a by the second adhesion member 236b.The first and second adhesion member 236a and 236b can comprise bonding agent and double faced adhesive tape strap.In specific embodiment, the first and second adhesion member 236a and 236b can be the materials of identical or different type.For example, in the illustrated embodiment, the first and second adhesion member 236a of Fig. 9 and 236b are respectively bonding agent and double faced adhesive tape strap.
In the illustrated embodiment, as shown in Figure 9, earthing component 334a is from the core part extension to the periphery of the rear surface of base plate 310a.Perhaps, earthing component 334a can extend to core from the periphery of the rear surface of base plate 310a.
In specific embodiment, earthing component 334a and receiving vessel 300a comprise the conductive material such as metal.Advantageously, the ESD and the EMI of FPC 230 generations can remove to receiving vessel 300a rapidly by earthing component 334a.
In optional embodiment, earthing component 334a can comprise the conductive elastomer such as conductive rubber, makes earthing component 334a to contact with ground-electrode 234 more firmly.
Figure 10 illustrates according to the FPC of another specific embodiment of LCD device of the present invention and the sectional view of receiving vessel.Except that receiving vessel and earthing component, the LCD of the one exemplary embodiment LCD with Fig. 8 and 9 basically is identical.Therefore, any further description of basic identical element will be omitted.
With reference to Figure 10, earthing component 334b extends from the end of the base plate 310b of receiving vessel 300b, and with base plate 310b monolithic molding, make earthing component 334b constitute the part of receiving vessel 300b.Advantageously, independently the forming technology of earthing component 334b can be omitted, and makes the manufacturing process of LCD to be simplified.
Receiving vessel 300b can have a pair of from the outstanding sidewall (not shown) of base plate 310b, and earthing component 334b is formed at the end of the base plate 310b between the sidewall.Receiving vessel 300b can not comprise the sidewall corresponding to FPC 230 sweeps.Earthing component 334b can extend to form the sidewall of receiving vessel 300b along the third direction shown in Figure 10 basically.In optional embodiment, receiving vessel 300b can comprise more than two sidewalls.
In specific embodiment, earthing component 334b and receiving vessel 300b comprise the conductive material such as metal.Advantageously, the ESD and the EMI of FPC 230 generations can remove to receiving vessel 300b rapidly by earthing component 334b.
In optional embodiment, earthing component 334b can comprise the conductive elastomer such as conductive rubber, makes earthing component 334b more closely to contact with ground-electrode 234.
Figure 11 A and 11B illustrate according to the FPC of another specific embodiment of LCD device of the present invention and the sectional view of receiving vessel.Figure 11 A and 11B be illustrated in respectively FPC be arranged on the receiving vessel before and the FPC and the receiving vessel of LCD device afterwards.Except that earthing component, the LCD of the one exemplary embodiment LCD with Fig. 1-4 basically is identical.Therefore, any further description of basic identical element will be omitted.
With reference to Figure 11 A and 11B, earthing component 336a and substrate 232 monolithic moldings, and outstanding from substrate 232 to contact with the base plate 310 of receiving vessel 300.Earthing component 336a is electrically connected to ground-electrode 234.In the illustrated embodiment, earthing component 336a has rectangular-plate-shaped, and rank shape partly is formed between the substrate 232 and earthing component of FPC 230.Earthing component 336a contacts with the base plate 310 of receiving vessel 300.
FPC 230 also comprises the insulation course 236 from receiving vessel 300 electrical isolations FPC 230.Insulation course 236 is formed in the substrate 232 to prevent that the multiple circuitous pattern that is formed in the substrate 232 is electrically connected to the base plate 310 of receiving vessel 300.Opening passes insulation course 236 formation makes earthing component 336a be arranged on the there.Placed the part of the insulation course 236 of ground-electrode 234 thereon and opened wide, made ground-electrode 234 and receiving vessel 300 to be electrically connected to each other by earthing component 336a.
The opening of insulation course 236 forms on the FPC230 corresponding to base plate 310 peripheries, and earthing component 336a is placed on opening.Yet the various diverse locations of opening and earthing component 336a can be expected.
Insulation course 236 combines with the substrate 232 of FPC 230 by the first adhesion member 236a, and combines with the base plate 310 of receiving vessel 300 by the second adhesion member 236b.The first and second adhesion member 236a and 236b can comprise bonding agent or double faced adhesive tape strap.In specific embodiment, the first and second adhesion member 236a and 236b can be the materials of identical or different type.For example, in the illustrated embodiment, the first and second adhesion member 236a of Figure 11 A and 11B and 236b are respectively bonding agent and double faced adhesive tape strap.
In specific embodiment, earthing component 336a and receiving vessel 300 comprise the conductive material such as metal.Advantageously, the ESD and the EMI of FPC 230 generations can remove to receiving vessel 300 rapidly by earthing component 336a.
In optional embodiment, earthing component 336a can comprise the conductive elastomer such as conductive rubber, makes earthing component 336a more closely to contact with ground-electrode 234.
For FPC 230 is electrically connected to receiving vessel 300, adopted the ground structure of the FPC 230 of the embodiment shown in the basis.The ground structure of FPC 230 also can be used for FPC 230 is electrically connected to another FPC 230.Alternatively, the ground structure of FPC 230 can be used for FPC 230 is electrically connected to PCB.
Figure 12 A and 12B illustrate according to the FPC of another specific embodiment of LCD device of the present invention and the sectional view of receiving vessel.Figure 12 A and 12B be illustrated in respectively FPC be placed on the receiving vessel before and FPC and the receiving vessel of LCD afterwards.Except that earthing component, the LCD of the one exemplary embodiment LCD with Figure 11 A and 11B basically is identical.Therefore, any further description of basic identical element will be omitted.
With reference to Figure 12 A and 12B, insulation course 236 is formed in the substrate 232 to prevent that the multiple circuitous pattern that is formed in the substrate 232 is electrically connected to the base plate 310 of receiving vessel 300.Opening passes insulation course 236 formation makes earthing component 336b can be arranged on the there.Placed the part of the insulation course 236 of ground-electrode 234 thereon and opened wide, made ground-electrode 234 and receiving vessel 300 to be electrically connected to each other by earthing component 336b.
In specific embodiment, the opening of insulation course 236 is formed on the end of FPC 230, and earthing component 336b is placed on the end of substrate 232.Advantageously, do not need the opening process of insulation course 236, make the manufacturing process of LCD to be simplified.
Insulation course 236 combines with the substrate 232 of FPC 230 by the first adhesion member 236a, and combines with the base plate 310 of receiving vessel 300 by the second adhesion member 236b.The first and second adhesion member 236a and 236b can comprise bonding agent or double faced adhesive tape strap.In specific embodiment, the first and second adhesion member 236a and 236b can be the materials of identical or different type.For example, in the illustrated embodiment, the first and second adhesion member 236a of Figure 12 A and 12B and 236b are respectively bonding agent and double faced adhesive tape strap.
In specific embodiment, earthing component 336b and receiving vessel 300 can comprise the conductive material such as metal.Advantageously, the ESD and the EMI of FPC 230 generations can remove to receiving vessel 300 rapidly by earthing component 336b.
In optional embodiment, earthing component 336b can comprise the conductive elastomer such as conductive rubber, makes earthing component 336b to contact more firmly with ground-electrode 234.
The ground structure of FPC 230 shown in above-mentioned specific embodiment can be used for FPC 230 is electrically connected to receiving vessel 300.The ground structure of FPC 230 also can be used for FPC 230 is electrically connected to another FPC 230.Alternatively, the ground structure of FPC 230 can be used for FPC 230 is electrically connected to PCB.
According to the embodiment that illustrates, earthing component is outstanding to be grounding to FPC from the receiving vessel that is used for display.Alternatively, earthing component can be outstanding to be grounding to FPC from FPC.
Display among the embodiment that illustrates can not comprise and comprises the earthing component that is used for the conduction double faced adhesive tape strap of FPC ground connection.Advantageously, the manufacturing cost of display can reduce and ground structure can be simplified.
More advantageously, the FPC rule and stable ground connection make its grounding characteristics to improve, and the ESD and the EMI that produce from FPC can remove rapidly by ground structure.
Though described specific embodiment in an exemplary embodiment, but should be appreciated that, the present invention is not limited to these specific embodiments, under the prerequisite of the spirit and scope of the present invention that claims limit, the general technician in this area can carry out variations and modifications to the present invention.

Claims (26)

1, a kind of display comprises:
Display panel, display image;
Circuit board provides drive signal for described display panel; And
Backlight assembly comprises:
Produce the light source of light;
The chassis is configured to and holds described light source, and described chassis comprises:
Base plate;
Sidewall extends to determine to receive the space from described base plate; With
Ground unit is formed on the rear surface of described base plate, thereby described circuit board is grounded to described chassis; With
Upper ledge is connected to described chassis to hold described display panel.
2, display according to claim 1, wherein said circuit board comprise substrate and the ground-electrode that forms in described substrate.
3, display according to claim 2, wherein said ground unit comprises the earthing component corresponding to described ground-electrode.
4, display according to claim 3, wherein said earthing component form on the described rear surface of described base plate and comprise outstanding.
5, display according to claim 4, wherein said outstanding outstanding to described circuit board.
6, display according to claim 3, wherein said earthing component form on the described rear surface of base plate and comprise the projection with elastic construction.
7, display according to claim 6, wherein said projection comprise the extension and the contact portion that contacts with described ground-electrode of extending to described circuit board.
8, display according to claim 3 also comprises the insulation course of configuration so that described circuit board and described chassis are electrically insulated from each other, and described insulation course has the opening corresponding to described earthing component.
9, display according to claim 8 also comprises the second adhesion member that described insulation course is adhered to the first adhesion member of described circuit board and described insulation course is adhered to described chassis.
10, display according to claim 9, the wherein said first and second adhesion members comprise bonding agent, double faced adhesive tape strap or comprise one of aforementioned at least combination.
11, display according to claim 1, wherein said circuit board are arranged on the described rear surface of described base plate, thereby and described ground unit comprise the earthing component that is arranged between described base plate and the described circuit board described circuit board ground connection.
12, a kind of LCD device comprises:
Back light unit provides light;
Panel of LCD utilizes described light display image;
Flexible print circuit provides drive signal for described panel of LCD;
The chassis is configured to and holds described back light unit, and described chassis comprises:
Base plate;
Sidewall extends to determine to receive the space from described base plate; With
Ground unit is formed on the rear surface of described base plate, thereby described flexible print circuit is grounded to described chassis; With
Upper ledge is connected to described chassis to hold described panel of LCD.
13, LCD device according to claim 12, wherein said flexible print circuit are arranged on the described rear surface of described base plate.
14, LCD device according to claim 12, wherein said flexible print circuit comprise substrate and the ground-electrode that forms in described substrate, described ground unit comprises the earthing component corresponding to described ground-electrode.
15, LCD device according to claim 14 also comprises the insulation course of configuration so that described flexible print circuit and described chassis are electrically insulated from each other, and described insulation course has the opening corresponding to described earthing component.
16, LCD device according to claim 14, wherein said earthing component forms on the described rear surface of described base plate, and described earthing component comprises the projection of giving prominence to or having elastic construction.
17, LCD device according to claim 12, wherein said flexible print circuit is arranged on the described rear surface of described base plate, thereby and described ground unit comprise the earthing component that is arranged between described base plate and the described flexible print circuit described flexible print circuit ground connection.
18, a kind of display comprises:
Display panel, display image;
Receiving vessel holds described display panel, and described receiving vessel comprises base plate and extends to determine to receive the sidewall in space from described base plate; And
Circuit board provides drive signal for this display panel, described circuit board comprise substrate and with the integrally formed earthing component of described substrate, described earthing component is outstanding to contact with described base plate and described circuit board is grounded to described receiving vessel from described substrate.
19, display according to claim 18, wherein said substrate is flexible.
20, display according to claim 18, wherein said circuit board are arranged on the rear surface of described base plate of described receiving vessel.
21, display according to claim 18, wherein said circuit board also is included in the ground-electrode that forms in the described substrate, and described ground-electrode is electrically connected to described earthing component.
22, display according to claim 18, wherein said earthing component comprises conductive elastomer.
23, display according to claim 18 also comprises insulation course, and it is configured to make described circuit board and described receiving vessel to be electrically insulated from each other, and described insulation course has the opening corresponding to described earthing component.
24, display according to claim 18, wherein said earthing component forms at the periphery of described circuit board.
25, display according to claim 18, wherein said earthing component and described base plate comprise conductive material.
26, a kind of LCD device comprises:
Back light unit provides light;
Panel of LCD utilizes described light display image;
Receiving vessel holds this panel of LCD, and described receiving vessel comprises base plate and extends to determine to receive the sidewall in space from described base plate; And
Circuit board provides drive signal for described LCD, described circuit board comprise substrate and with the integrally formed earthing component of described substrate, described earthing component is outstanding to contact described base plate and described circuit board is grounded to described receiving vessel from described substrate.
CNB2005101248791A 2004-11-23 2005-11-23 Display device Active CN100492116C (en)

Applications Claiming Priority (3)

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KR96269/04 2004-11-23
KR1020040096269A KR20060057187A (en) 2004-11-23 2004-11-23 Receiving container for a display apparatus and liquid crystal display apparatus having the same
KR27162/05 2005-03-31

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CN100492116C true CN100492116C (en) 2009-05-27

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KR100862757B1 (en) * 2007-03-09 2008-10-13 장한 Tray enabling to receive flat type objects having various size
TWI419953B (en) 2007-12-04 2013-12-21 Innolux Corp Liquid crystal display
KR101438647B1 (en) * 2008-01-15 2014-09-17 삼성디스플레이 주식회사 Container member and flat display apparatus having the same
CN101625463B (en) * 2008-07-09 2014-05-28 群创光电股份有限公司 Compound adhesive tape and display device
JP5311018B2 (en) * 2008-12-23 2013-10-09 日本精機株式会社 Liquid crystal display
US8434884B2 (en) 2009-07-24 2013-05-07 Au Optronics Corp. Backlight module
JP5532837B2 (en) * 2009-11-12 2014-06-25 日本精機株式会社 Display device
CN106980209B (en) * 2017-06-02 2020-05-19 厦门天马微电子有限公司 Liquid crystal display device having a plurality of pixel electrodes
KR102578498B1 (en) * 2018-10-24 2023-09-14 삼성디스플레이 주식회사 Display device

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JPH06265922A (en) * 1993-03-12 1994-09-22 Hitachi Ltd Liquid crystal display device
JPH10268272A (en) * 1997-03-27 1998-10-09 Hitachi Ltd Liquid crystal display device
JP3889754B2 (en) * 1999-08-04 2007-03-07 三洋電機株式会社 Display device
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