CN1308750C - LCD device - Google Patents
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- CN1308750C CN1308750C CNB021412820A CN02141282A CN1308750C CN 1308750 C CN1308750 C CN 1308750C CN B021412820 A CNB021412820 A CN B021412820A CN 02141282 A CN02141282 A CN 02141282A CN 1308750 C CN1308750 C CN 1308750C
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Abstract
The present invention relates to a liquid crystal display device which is provided with a frame, a liquid crystal plate and a diffuser, wherein the liquid crystal plate and the diffuser are supported by the frame which is made of white resin, the frame is composed of two short side parts and two long side parts, the short edge parts are respectively provided with a reflector, and a lamp installing part which is made of rubber and the reflector are installed together to support the end of a lamp. The lamp installing part is arranged on a back reflective mirror in order to fix the lamp to the back reflective mirror.
Description
Invention field
The present invention relates to have a kind of liquid crystal display device of straight backlight assembly, particularly can reduce the liquid crystal display device of employed device count.
Background technology
Monitor in the personal computer of monitor, stand-alone display and the notebook-sized of used for liquid crystal display device in constituting thin type TV receiver.Traditional LCD is to be made of backlight assembly, liquid crystal board and a shell, the light that wherein said panel allows to project from backlight assembly therefrom passes through selectively, and forming an image thereon, described shell is used to hold backlight assembly and liquid crystal board.As backlight edge backlit, direct backlight arranged, the feature of edge backlit is: will the light source resemble the cold cathode discharge tube be placed on the next door of backlight assembly, the light that goes out from light emitted is directed on the liquid crystal board by optical plate; And straight backlight being characterised in that: light source is placed on the liquid crystal board opposite.Compare with the edge backlit parts, straight backlight assembly can improve the brightness of liquid crystal board, thereby can be used for the configuration example interior monitor of thin TV receiver of high definition type in this way.
Liquid crystal board refers to a kind of like this panel: it comprise have a transparency carrier resembling the such on-off element of TFT (thin film transistor (TFT)), the transparent counter substrate relative and be sealed in two liquid crystal between the substrate with this transparency carrier, liquid-crystal display section is arranged with matrix form, wherein a plurality of drivers link to each other with a signal line with a sweep trace that is positioned at each liquid crystal display device parts respectively, and a connection substrate is connected to each driver.Backlight assembly refers to a light source, be used for the support of clamping light source, be used for the light that will go out from a light emitted reverberator towards the liquid crystal board reflection, and is used to make light diffusing diffusing globe.
For example, in Japanese Patent Application Publication No.2000-75273, a kind of liquid crystal display device with straight backlight assembly is disclosed.Fig. 1 is an exploded view, the structure of traditional liquid crystal display device of disclosed technology and other known technology in it has shown according to above-mentioned ' 273 publication.As shown in Figure 1, traditional liquid crystal display device is provided with the frame 21 in a L shaped cross section, and place for 21 of frames around display panels 22.Display panels 22 is made of display unit 22a and connection substrate 22b, and described display unit 22a is transmitted light selectively, and it is generated color, to form image, the operation of described connection substrate 22b control display unit 22a.The sidepiece of display unit 22a and connection substrate 22b all contacts with the inside surface of frame 21.Connect substrate 22b and approximately meet at right angles, bend along the inside surface of frame 21 is curved from display unit 22a.Be the side that frame 21 has covered the display unit 22a in the liquid crystal board 22, simultaneously, also covered connection substrate 22b.
In addition, when when display unit 22a looks, diffusing globe 25 is located at a side that is not covered by frame 21 of crystal liquid substrate 22.Diffusing globe 25 is by for example being a kind of white translucent sheet that acryl resin constitutes, and with the parallel placement of display unit 22a of liquid crystal board 22.Hereinafter, be designated as surface direction from diffusing globe 25 towards the direction of the display unit 22a of liquid crystal board 22, and be designated as back of the body direction towards the direction of diffusing globe 25 by display unit 22a.When surface direction is observed, frame 21, liquid crystal board 22 and diffusing globe 25 all are rectangles usually.
The side part of diffusing globe 25 is by 26 supportings of frame shape metab.The frame shape pad 23 that is made of resin is between the display unit 22a of metab 26 and liquid crystal board 22.Pad 23 is used to prevent that metab 26 from contacting with the liquid crystal board of being made by glass 22, thereby prevents the damage of liquid crystal board 22.The positioning element 27 that is made of resin is attached to respectively on four surface angles of metab 26.Positioning element 27 is used for location and fixing liquid crystal board 22.Between the connection substrate 22b of metab 26 and crystal liquid substrate 22, settle an insulating element (not shown), to prevent short circuit between two substrates.
Back of the body reflective mirror 28 is positioned at the back side of diffusing globe 25.Back of the body reflective mirror 28 can be plate shaped, or chevron-shaped.Core and peripheral part thereof of back of the body reflective mirror 28 are all parallel with diffusing globe 25 usually.In back of the body reflective mirror 28, each other Dui Li two side part 28a with respect to center of carrying on the back reflective mirror 28 and near part, bend towards face side greater than 0 less than the angle of 90.Between other two the side parts and diffusing globe 25 except that the side part 28a of back of the body reflective mirror 28, difference setting side reverberator 29.Each side reflector 29 is a pectination all, is formed with some notch part 29a on it.
Between diffusing globe 25 and back of the body reflective mirror 28, be arranged with some lamps 30 parallel to each other.The two ends of lamp 30 are all supported by the notch part 29a of side reflector 29.Be that lamp 30 is arranged in parallel with the side part 28a that carries on the back reflective mirror 28, and centered on by the side part 28a and the side reflector 29 of back of the body reflective mirror 28.At back of the body reflective mirror 28 is under the undulatory situation, and lamp 30 is positioned at the trough of ripple.In addition, back of the body reflective mirror 28 and side reflector 29 are received and are supported in the resin frame 31.
In the flat 11-2813 of Japanese Patent Application Publication No., a kind of technology relevant with the liquid crystal display device with straight backlight assembly disclosed, wherein, provide semi-cylindrical reverberator respectively to the linear light sorurce (not shown), linear light sorurce and reverberator are done as a whole each other, do can be along side slip, and be dismountable with respect to frame.Reverberator is as back of the body reflective mirror 28 and side reflector 29 shown in Figure 1.According to wherein said structure, it is even that the brightness of backlight assembly becomes, and the replacing of linear light sorurce is easy.
In addition, in the flat 11-146305 of Japanese Patent Application Publication No., a kind of technology relevant with liquid crystal display device disclosed, frame, a diffusing globe and a backlight assembly of a supporting liquid crystal board wherein are provided, and described frame is made of two vertical frames, two horizontal frames and four corner assemblies.According to described structure wherein, even if the liquid crystal display device size is very big, the increase of the size of the increase of molded mechanical dimension that also can be by suppressing to be used to make frame and wherein used mould suppresses the cost of frame.
But above-mentioned traditional liquid crystal display device has following problem.At first, compare the cost height of liquid crystal display device with the display that uses cathode-ray tube (CRT).Therefore, for liquid crystal display device, reducing cost is the task of top priority.In addition, also need to reduce at present the size of liquid crystal display device, and increase the size of viewing area.For satisfying this demand, must make around visual frame image display portion and that be not used in displayed image zone narrow as much as possible.
In the open No.2000-75273 of aforementioned Japanese patent, a kind of liquid crystal display device is disclosed, it is restricted at the cost that reduces visual frame and when doing narrow visual frame, and this is because use therein device count is very big, comprises metab 26 and positioning element 27.Equally, in the open flat 11-2813 of No. of aforementioned Japanese patent application, disclose a kind of liquid crystal display device, also there is a problem in it: provide a plurality of reverberators owing to be respectively a plurality of linear light sorurces, so cost increases.In addition, in the open flat 11-146305 of No. of aforementioned Japanese patent, a kind of liquid crystal display device is disclosed, it might suppress to be used to make the increase of size of the molded machinery of frame, and the increase of wherein used die size, but, thereby also be restricted on the cost reducing because it is big to constitute the device count of frame.
Summary of the invention
An object of the present invention is to provide with the conventional liquid crystal part and compare, the narrower liquid crystal display device in low, the visual frame of cost zone.
Comprise some light sources, back of the body reflective mirror, diffusing globe, liquid crystal board and a frame according to liquid crystal display device of the present invention; Described back of the body reflective mirror is positioned at the liquid crystal display device back side, so that reflection is from the light of light source; Described diffusing globe is relative with back of the body reflective mirror, and light source is used for the light that transmission and diffusion go out from light emitted between them simultaneously; Liquid crystal board optionally transmission has passed the light of diffusing globe, thereby forms image; Be arranged to whole frame with diffusing globe supporting part and liquid crystal board supporting part, the diffusing globe supporting part is used to support diffusing globe, and the liquid crystal board supporting part is used to support liquid crystal board.
In the present invention, because the frame that is provided both had been provided with the diffusing globe supporting part of supporting diffusing globe marginal portion, be provided with the liquid crystal board supporting part of supporting liquid crystal board marginal portion again, therefore, might omit keeper, metab and resin frame as the indispensable parts of conventional liquid crystal part.So, might make used device count be less than device count in the conventional liquid crystal part, thus, can reduce the operation of assembling liquid crystal display spare, therefore, might reduce the cost of liquid crystal display device.In addition, owing to omitted metab, so visual frame is narrowed down.
Preferably, light source is installed in respectively on each back of the body reflective mirror, and its two ends can be by the installing component dismounting that is made of resilient material.In this case, because light source is mounted in the back of the body on the reflective mirror, therefore, and when needs more during the light source in the switching liquid crystal displayer, can be by dismounting back of the body reflective mirror, and once change all light sources.Therefore, improved the efficient that light source more changes jobs.In addition, might slow down the vibration and the impact that are applied to from the outside on the light source, thereby, the damage of light source prevented.
On the other hand, a kind of liquid crystal display device is disclosed in the open No.2000-75273 of aforementioned Japanese patent application, when needs are changed lamp 30 (linear light sorurce), as shown in Figure 1, the entire infrastructure that comprises resin frame 31, back of the body reflective mirror 28, side reflector 29, lamp 30, diffusing globe 25, metab 26 and keeper 27 be must from liquid crystal display device, remove, afterwards, metab 26 and diffusing globe 25 from entire infrastructure, removed again, again, remove lamp 30.Like this, when changing lamp, need a large amount of time and the labours of spend.
In the open flat 11-2813 of No. of aforementioned Japanese patent application, a kind of technology of being convenient to the replacing of lamp is disclosed.But wherein disclosed technology only is applicable to one one ground replacing lamp.But along with the passing of working time of lamp, the brightness meeting of lamp reduces, and therefore, if only change a lamp in liquid crystal display device, only this new lamp becomes brighter than other lamp, thereby causes screen intensity to become inhomogeneous.Therefore, usually,, will change all lamps together as long as there is a lamp to damage.In the open flat 11-2813 of No. of aforementioned Japanese patent application, disclose a kind of liquid crystal display, when once needing to change all lamps, needed one one ground to take out and change lamp, so the very trouble that becomes that more changes jobs of lamp.On the other hand, in the present invention, can carry on the back reflective mirror by removing, and once all light sources (lamp) all be changed, like this, can change light source effectively.
Frame can have side reflector, and the light that is used for going out from described light emitted reflects towards described liquid crystal board.Can promptly along the inside surface of liquid crystal display device, provide described side reflector along the inside surface of frame.Utilize this structure, might omit use as this independently side reflector of the indispensable parts in the conventional liquid crystal part.
Can be by connecting at least two frames that separate, and frame is assembled into the frame shape.Can frame be separated four corners, be frame linear, that separate by connecting four basically, it can be assembled into a frame.In this case, diffusing globe and back of the body reflective mirror are installed to and become easier in the frame.In addition, can also reduce to be used to make the size of the mould of frame, therefore might reduce the cost of liquid crystal display device.
Preferably, also can form frame separately, or constitute frame separately by the metal of application of resin by molded resin.Therefore, the molded of frame separately become easily, be used in pad in traditional liquid crystal display device, that be used to protect the liquid crystal board of making by glass but also might omit.As a result, might further reduce the number of employed element, and suppress cost largely.
In addition, back of the body reflective mirror can comprise a sheet metal and be coated in a kind of reflecting material on this sheet metal, thereby constitute a reflecting surface.As a result, might make diffusion and reflected light, thereby a kind of back of the body reflective mirror can be provided, it is very thin and intensity is very high.Here foregoing reflecting material can use, and for example shows the resin of the color of reflex, for instance, and a kind of white resin.
Like this, according to the present invention, might provide a kind of liquid crystal display device, compare with traditional liquid crystal display device, its cost is low and visual frame is narrower.
Brief description of drawings
Fig. 1 is an exploded view, and it has shown the structure of traditional liquid crystal display device;
Fig. 2 is an exploded view, and it has shown the structure of liquid crystal display device according to an embodiment of the invention;
Fig. 3 is a skeleton view, and it has shown structure backlight used in the liquid crystal display device;
Fig. 4 is a skeleton view, and it has shown the structure of used minor face parts in the liquid crystal display device;
Fig. 5 A is one group of planimetric map to 5D, and they have shown the structure of minor face parts, and Fig. 5 A is a side view, and Fig. 5 B is a top view, and Fig. 5 C is the side view rectangular with Fig. 5 A, and Fig. 5 D is the side view with Fig. 5 A offside;
Fig. 6 is a skeleton view, and it has shown the structure of used long leg spare in the liquid crystal display device.
Fig. 7 A is one group of planimetric map to 7D, and they have shown the structure of long leg spare, and Fig. 7 A is a side view, and Fig. 7 B is a top view, and Fig. 7 C is the side view rectangular with Fig. 7 A, and Fig. 7 D is the side view with Fig. 7 A offside;
Fig. 8 is a skeleton view, and it has shown minor face parts and long leg spare and the structure of the coupling part between the parts on every side; And
Fig. 9 is a skeleton view, and it has shown the structure of back of the body reflective mirror, lamp installing component and lamp used in the liquid crystal display device.
The detailed description of most preferred embodiment
Below, with reference to the accompanying drawings, embodiments of the invention are specifically described.Now, the first embodiment of the present invention will be described.Fig. 2 is an exploded view, and it has shown the structure according to the liquid crystal display device of this embodiment.As shown in Figure 2, in this embodiment of liquid crystal display device, provide the frame 1 and the liquid crystal board 2 in L shaped cross section.Liquid crystal board 2 is made of display part 2a and connection substrate 2b, described display part 2a is transmitted light selectively, and it is generated color, to form an image, described connection substrate 2b is connected to two sides adjacent of display part 2a, and the operation of control display part 2a.Display part 2a is by two glass substrates and be attached to its outside polarizer and constitute.Display part 2a and connect the inside that substrate 2b is contained in frame 1 approximately meets at right angles from the display part and bends and connect substrate 2b.Be the lateral parts of the side of display part 2a, connect substrate 2b simultaneously in addition, all covered by the frame 1 in L shaped cross section.
In addition, the side that the side of liquid crystal board 2 part is not covered by frame 1 when display unit 2a observes is provided with a diffusing globe 5.Diffusing globe 5 is white translucent sheets that for example are made of acryl resin, and with the parallel placement of display part 2a of liquid crystal board 2.Hereinafter, be designated as surface direction from diffusing globe 5 towards the direction of the display unit 2a of liquid crystal board 2, and be designated as back of the body direction towards the direction of diffusing globe 5 from display unit 2a.
The edge of the display part 2a of liquid crystal board 2 and the edge of diffusing globe are subjected to the supporting of resin frame 6.Frame 6 is made of two minor face parts 12 and two long leg spares 13.Back of the body reflective mirror 8 is positioned at the back side of diffusing globe 5.The center and the neighbouring part of back of the body reflective mirror 8 are parallel with diffusing globe 5 basically.Two opposite side part 8a of back of the body reflective mirror 8 are with respect to the central authorities and the neighbouring part of back of the body reflective mirror 8, to bend towards face side greater than 0 ° of angle less than 90 °.Two other side except that the side part 8a of back of the body reflective mirror 8 partly forms notch part 8b.
Fig. 3 is a skeleton view, and it has shown the structure of backlight assembly used in the liquid crystal display device of this embodiment 11.Backlight assembly 11 comprises among Fig. 3 and a unshowned diffusing globe 5.Shown in Fig. 2 and 3,, be arranged in parallel between diffusing globe 5 and the back of the body reflective mirror 8 as some lamps 10 of cold cathode discharge tube of linear light sorurce and so on.At the two ends of each lamp 10, all has the lamp installing component 9 that constitutes by rubber.Each lamp installing component 9 all is formed with a depression 9a of the end that is used to assemble relevant lamp, and the part 9b in a U-shaped cross section (referring to Fig. 9).The two ends of each lamp 10 are all by depression 9a supporting.Lamp installing component 9 is connected on the notch part 8b of back of the body reflective mirror 8 by the part 9b in its U-shaped cross section, and thus, lamp is installed on the back of the body reflective mirror 8.Lamp 10 is arranged in parallel with the side part 8b of back of the body reflective mirror 8, and is centered on by back of the body reflective mirror 8 and frame 6.Back of the body reflective mirror 8 for example is made of resin, and has a white surface, so that reflected light brokenly, the surface of the back of the body reflective mirror that is provided can be a minute surface.Utilize the screw (not shown), will carry on the back reflective mirror and be connected on the frame 1, thus liquid crystal display device is assembled as an integral unit.Used in this embodiment lamp 10 is cold cathode discharge tubes.Backlight assembly 11 is made of frame 6, diffusing globe 5, lamp 10, lamp installing component 9 and back of the body reflective mirror 8.
Fig. 4 is a skeleton view, and it has shown the structure of each minor face parts 12 that liquid crystal display device among this embodiment is used.Fig. 5 A is a planimetric map to 5D, and they have shown the structure of each minor face parts 12, and Fig. 5 A is a side view, and Fig. 5 B is a top view, and Fig. 5 C is and the side view of Fig. 5 A quadrature that Fig. 5 D is the side view relative with Fig. 5 A.To shown in the 5D, each minor face parts 12 all is to be made of top board 12a, reverberator 12b and link 12c as Figure 4 and 5 A; Described top board 12a extends along the longitudinal direction of minor face parts 12, and is parallel to liquid crystal board 2; Described reflection 12b extends longitudinally equally, and with greater than 0 ° less than 90 ° with respect to top board 12a angle tilt; Described link 12c is positioned at the two ends of the longitudinal direction of minor face parts 12.The groove 12d that extends along above-mentioned longitudinal direction is formed in the top board 12a, and a step portion 12e of Yan Shening is formed on the groove 12d equally along the longitudinal direction.The edge of diffusing globe 5 is installed in the groove 12d, described thus groove supporting diffusing globe 5.Step portion 12e holds a part of the polarizer (not shown) of liquid crystal board 2 therein.In the lower end of reverberator 12b, a plurality of groove 12f that embark on journey, these grooves extend through minor face parts 12.As noted earlier, reverberator 12b tilts with respect to top board 12a, and with the molded formation minor face of a kind of white resin parts 12, reverberator 12b can reflect the light from lamp 10 towards liquid crystal board 2 like this.That is, reverberator 12b is as a side reflector.Lamp installing component 9 (referring to Fig. 3) is installed in the groove, and is fixed by groove 12f.In addition, link 12c is connected to long leg spare 13, and on the side part 8a of back of the body reflective mirror 8.
Fig. 6 is a skeleton view, and it has shown the structure of each used in the liquid crystal display device of this embodiment long leg spare 13.Fig. 7 A is a planimetric map to 7D, has shown the structure of long leg spare, and Fig. 7 A is a side view, and Fig. 7 B is a top view, and Fig. 7 C is and the side view of Fig. 7 A quadrature that Fig. 7 D is the side view of Fig. 7 A offside.To shown in the 7D, long leg spare 13 comprises top board 13a and the side plate 13b that both all extend along the longitudinal direction of long leg spare as Fig. 6 and 7A.With the cross section of the long leg spare 13 of longitudinal direction quadrature be L shaped.The top board 13a of formed long leg spare 13 on its vertical two ends, has protruding 13c.Each protruding 13c is made of two projectioies, and they are the protruding 13d that extend along the longitudinal direction, and along the protruding 13e that extends with the direction of longitudinal direction quadrature.Projection 13c is used for liquid crystal board 2 is positioned and fixes.Top board 13a has the step portion 13f that extends along the longitudinal direction.Long leg spare 13 is by using resin molded formation.
Fig. 8 is a skeleton view, and it has shown the structure of the coupling part between each minor face parts 12 and long leg spare 13 and the adjacent component thereof.As shown in this Fig, the vertical end of the top board 12a of minor face parts 12 and link 12c are connected on the top board 13a of long leg spare 13.The step portion 12e of minor face parts 12 is connected on the step portion 13f of long leg spare 13, so that a continuous step portion is provided.In addition, the protruding 13c that includes protruding 13d and 13e is positioned at the surface of the angle part of frame 6, and described angle part is to form by the connection between minor face parts and the long leg spare 12,13.Liquid crystal board 2 (referring to Fig. 2) is placed on and is subjected to the supporting of two continuous step portion and protruding 13c, and continuous step portion is made of step portion 12e and 13f.In addition, link 12e is connected to the sidepiece 8a (referring to Fig. 3) of back of the body reflective mirror 8.Groove 12f is formed in the reverberator 12b of minor face parts 12, and the lamp installing component 9 that is formed with depression 9a is installed in the groove 12f.
Fig. 9 is a skeleton view, and it has shown the structure of the back of the body reflective mirror 8, lamp installing component 9 and lamp 10.As shown in the drawing, some notch part 8b are formed at the marginal portion of back of the body reflective mirror 8 with the spacing that equates.Each lamp installing component 9 all has depression 9a and U-shaped cross section parts 9b.U-shaped cross section components interior is provided with a bossing (not shown), is used to be installed in the corresponding notch part 8b.By the notch part 8b that packs into this projection relevant, might effectively locate each lamp installing component 9.
To fit in the depression 9a of lamp installing component 9 as the end of the lamp 10 of cold cathode discharge tube.On the position that U-shaped cross section parts 9b is installed to the notch part 8b that forms on the back of the body reflective mirror, carry on the back on the reflective mirror 8 lamp installing component 9 location and with being installed to.As a result, lamp 10 is fixed on the back of the body reflective mirror 8.The lead-in wire (not shown) is drawn from the two ends of lamp 10, and they each respectively link to each other with an external power source (not shown) by a phase inverter (not shown).
Now, will the operation of the liquid crystal display device of present embodiment be described.When power feed arrived lamp 10 shown in Figure 2, lamp 10 was luminous.The light that sends from lamp 10 is directly incident on the diffusing globe 5, or is incided on the diffusing globe 5 after reflecting by back of the body reflective mirror 8.Incide the light on the diffusing globe 5 like this, pass diffusing globe, thereby be scattered and become evenly, afterwards, enter the display part 2a of liquid crystal board 2.The display part 2a that is connected substrate 2b control is the transmission incident light selectively, and it is generated color.As a result, in the surface of display part 2a one side, form an image.
In the liquid crystal display device of this embodiment, because groove 12d and protruding 13c are formed in the frame 6, therefore might influence the location of diffusing globe 5 and liquid crystal board 2, and they are supported.So, might be omitted in employed positioning element, metab and resin frame (referring to Fig. 1) in the conventional liquid crystal part.In addition, owing to reverberator 12b is contained in the frame 6, and lamp 10 is installed on the back of the body reflective mirror 8, therefore might omit employed side reflector (referring to Fig. 1) in the conventional liquid crystal part, thus, can reduce the device count in the liquid crystal display device.Like this, by reducing employed device count, liquid crystal display device can be installed more easily.Because the device count of using tails off, installment work becomes lighter, so the cost of liquid crystal display device has reduced.In addition, owing to can omit metab and resin frame, therefore visual frame zone is narrowed down.
In this embodiment of liquid crystal display device, lamp 10 is installed on the back of the body reflective mirror 8, therefore, when changing lamp 10, can carry on the back reflective mirror 8 by removing, and all lamps are changed.As a result, improved the efficient that lamp more changes jobs.
In addition, in this embodiment of liquid crystal display device, because lamp 10 is to be installed on the back of the body reflective mirror 8 by the lamp installing component 9 that is made of rubber, therefore therefore possible damp external shocks and impact have prevented the damage of lamp 10.Notch part is formed in the side reflector in the classic method with the supporting lamp, the increase of notch part has reduced the advantage of side reflector, be difficult to make the reflector space on the side reflector further to narrow down simultaneously, therefore can not in liquid crystal display device, use many lamps.On the other hand, in foundation this embodiment of the present invention, the number that can make lamp 10 is more than the lamp number in the prior art, and this is because lamp 10 is subjected to the supporting of lamp installing component 9.So, might improve the brightness of display part 2a, and make the brightness regulation range widens.In addition,, might improve the homogeneity of brightness, thus, might shorten the distance between lamp 10 and the liquid crystal board 2, therefore might make liquid crystal display device thinner by improving the number of lamp 10.
In addition, in the liquid crystal display device of this embodiment, because frame 6 is made of resin, therefore, even if frame 6 contacts with the viewing area 2a of the liquid crystal board 2 that is made of glass, also not worrying can damage display part 2a.Therefore, might omit employed pad (referring to Fig. 1) in traditional liquid crystal display device.As a result, might further reduce employed device count, and further reduce cost.In addition, because frame 6 is made of resin, therefore provide an insulating element between connection substrate 2b that there is no need at liquid crystal board 2 and the frame 6, also do not need to utilize insulation film to cover and be used for the lead-in wire (not shown) of lamp 10, having ready conditions so further reduces cost.
In addition, owing to frame 6 is made of two minor face parts 12 and two long leg spares 13, so in the installation of liquid crystal display device, the work that the liquid crystal board 2, diffusing globe 5 and the back of the body reflective mirror 8 that are used for frame 6 are installed becomes lighter.In addition, can reduce to be used to make the size of the mould of frame 6, thereby can further reduce cost.Because frame 1 is made of metal, therefore might make frame 1 have shielding.
Although frame 6 used in the present embodiment is made of minor face and long leg spare 12,13, but frame 6 also can be complete parts, thus, become big, can further reduce the number of device used in the liquid crystal display device although be used to make the die size of frame 6.Although used back of the body reflective mirror 8 is made of resin in the present embodiment, it also can be made of metal, maybe can comprise the metal resemble the aluminum or aluminum alloy and go up the white resin of coating.Although used lamp installing component 9 is made of rubber in the present embodiment, it also can be made of another kind of material.Constitute the lamp installing component by the material that uses the heat conductivity excellence, make heat from lamp 10, to give off effectively.
In invention, space between the adjacent recesses part 8b can be provided with to such an extent that be narrower than traditional liquid crystal display device, like this, can be pre-formed the notch part 8b in the back of the body reflective mirror 8 with number greater than lamp 10 numbers, thus, can when being installed, liquid crystal display device select the proper number and the layout of lamp 10.Can also after having used one period, liquid crystal display device change the number and the layout of lamp 10 easily.In addition, also not be used in the back of the body reflective mirror and form notch part 8b, also lamp installing component 9 can be installed on the back of the body reflective mirror 8.So, just might set the needed installation site of the lamp installing component 9 that is used to carry on the back reflective mirror 8, therefore, can set the number and the position of lamp 10 arbitrarily.Therefore, after using liquid crystal display device, when needing to change lamp,, can change the number and the position of lamp at an easy rate with respect to their initial number and position owing to the deterioration that takes place in time.In addition, although in this example, back of the body reflective mirror 8 is connected on the frame 1 by screw, also can be by installing or by means such as the two coating adhesive strips of use, will carrying on the back reflective mirror and be connected on the frame 1.
Claims (17)
1. liquid crystal display device comprises:
Some light sources;
Back of the body reflective mirror places the back side of described liquid crystal display device, so that reflect the light from described light source;
Diffusing globe on the described back of the body reflective mirror opposite that has described light source, described light source are between them, and diffusing globe is used for the light that transmission and diffusion are sent from described light source;
Liquid crystal board, the light of described diffusing globe has been passed in transmission selectively, forms image thus;
Frame has four limit portions that are used to support described diffusing globe and described liquid crystal board; Wherein, in two relative described limit portions, be formed for assembling the groove at described diffusing globe edge at least respectively; And, at least two pairs of projectioies (13c) that being used for of forming at the diagonal angle, upper edge, at least two angles of described frame respectively positions described liquid crystal board.
2. according to the liquid crystal display device of claim 1, also comprise the installing component that constitutes by resilient material, it is characterized in that the two ends of described light source are removably installed on the described back of the body reflective mirror, and each end all passes described installing component respectively.
3. according to the liquid crystal display device of claim 2, it is characterized in that described installing component is made of rubber or resin.
4. according to the liquid crystal display device of claim 1, also comprise the side reflector of promptly placing along the side of described liquid crystal display device along the inside surface of described frame, the light that is used for sending from described light source reflects towards described liquid crystal board.
5. according to the liquid crystal display device of claim 2, it is characterized in that by at least two frames that separate of connection, and described frame is assembled into shaped as frame.
6. according to the liquid crystal display device of claim 5, it is characterized in that can be at four corner assembly places, with described frame separately, and can be by connecting four, the frame that separates of substantial linear respectively, and described frame is assembled into shaped as frame.
7. according to the liquid crystal display device of claim 5, it is characterized in that the described frame that separates links together by each end is installed together each other.
8. according to the liquid crystal display device of claim 6, it is characterized in that the described frame that separates is by being installed together each end each other and they being linked together.
9. according to the liquid crystal display device of claim 5, further comprise side reflector, be used for and will reflect towards described liquid crystal board from the light that described light source sends, it is characterized in that described two frames that separate face with each other, described two frames that separate combine with two described side reflectors respectively and are integral.
10. according to the liquid crystal display device of claim 9, have groove on described two side reflectors that it is characterized in that being combined into one, be used for described installing component is assemblied in wherein with the described frame that separates.
11. liquid crystal display device according to claim 9, it is characterized in that the remaining described side reflector that does not combine with the described frame that separates, form integral body with described back of the body reflective mirror, so that hold up from back of the body reflective mirror, and be arranged to face with each other, and be connected on described two side reflectors that combine with the described frame that separates.
12., it is characterized in that the described frame that separates forms by molded resin according to the liquid crystal display device of claim 5.
13., it is characterized in that the described frame that separates is to utilize the metal that is coated with resin to constitute according to the liquid crystal display device of claim 5.
14., thereby it is characterized in that described back of the body reflective mirror is to apply a kind of reflectorized material by the upper surface at sheet metal to form a reflective surface constitute on sheet metal according to the liquid crystal display device of claim 1.
15., it is characterized in that described frame is detachably fixed on the described back of the body reflective mirror according to the liquid crystal display device of claim 1.
16. according to the liquid crystal display device of claim 1, also comprise frame, be used for described liquid crystal board is fixed to described frame.
17. liquid crystal display device according to claim 2, it is characterized in that each described installing component all has the part and a depression in a U-shaped cross section, the part in U-shaped cross section is used to install a lateral edge portions of described back of the body reflective mirror, and each described light source can insert or insert described depression to its end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021412820A CN1308750C (en) | 2002-07-05 | 2002-07-05 | LCD device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021412820A CN1308750C (en) | 2002-07-05 | 2002-07-05 | LCD device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1466003A CN1466003A (en) | 2004-01-07 |
| CN1308750C true CN1308750C (en) | 2007-04-04 |
Family
ID=34147753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021412820A Expired - Fee Related CN1308750C (en) | 2002-07-05 | 2002-07-05 | LCD device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1308750C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100432778C (en) * | 2004-06-07 | 2008-11-12 | 友达光电股份有限公司 | Light background module with light collecting function |
| JP4411186B2 (en) * | 2004-11-08 | 2010-02-10 | Ｎｅｃ液晶テクノロジー株式会社 | Liquid crystal display |
| JP4257617B2 (en) * | 2006-11-20 | 2009-04-22 | ソニー株式会社 | Liquid crystal display |
| US8279368B2 (en) | 2007-09-14 | 2012-10-02 | Sharp Kabushiki Kaisha | Lighting device for display device, display device and television receiver |
| KR100949117B1 (en) * | 2008-05-21 | 2010-03-23 | 삼성전자주식회사 | Display device and bottom chassis thereof |
| CN102376202A (en) * | 2010-08-11 | 2012-03-14 | 鸿富锦精密工业（深圳）有限公司 | Display device |
| CN102376199A (en) * | 2010-08-11 | 2012-03-14 | 鸿富锦精密工业（深圳）有限公司 | Display device |
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| JPS6412813A (en) * | 1987-07-07 | 1989-01-17 | Mitsubishi Electric Corp | Power device for dc stabilization |
| US5432626A (en) * | 1992-03-12 | 1995-07-11 | Hitachi, Ltd. | Liquid crystal display device with shield casing connected to frame holding the display above lower casing holding light source |
| US5659376A (en) * | 1993-08-10 | 1997-08-19 | Canon Kabushiki Kaisha | Liquid crystal display apparatus in which a non-transmissive elastic member surrounding a display area is disposed between a viewer side light transmissive plate and the LCD |
| JPH11146305A (en) * | 1997-11-04 | 1999-05-28 | Sony Corp | Platelike display device |
| JP2000075273A (en) * | 1998-06-17 | 2000-03-14 | Hitachi Ltd | Liquid crystal display device |
| CN2434586Y (en) * | 2000-07-21 | 2001-06-13 | 台湾得意温控科技股份有限公司 | Light hood temp control indicator for freezing air conditioner |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6412813A (en) * | 1987-07-07 | 1989-01-17 | Mitsubishi Electric Corp | Power device for dc stabilization |
| US5432626A (en) * | 1992-03-12 | 1995-07-11 | Hitachi, Ltd. | Liquid crystal display device with shield casing connected to frame holding the display above lower casing holding light source |
| US5659376A (en) * | 1993-08-10 | 1997-08-19 | Canon Kabushiki Kaisha | Liquid crystal display apparatus in which a non-transmissive elastic member surrounding a display area is disposed between a viewer side light transmissive plate and the LCD |
| JPH11146305A (en) * | 1997-11-04 | 1999-05-28 | Sony Corp | Platelike display device |
| JP2000075273A (en) * | 1998-06-17 | 2000-03-14 | Hitachi Ltd | Liquid crystal display device |
| CN2434586Y (en) * | 2000-07-21 | 2001-06-13 | 台湾得意温控科技股份有限公司 | Light hood temp control indicator for freezing air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1466003A (en) | 2004-01-07 |
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