WO2014063405A1

WO2014063405A1 - Protective housing for mobile terminal and mobile terminal device

Info

Publication number: WO2014063405A1
Application number: PCT/CN2012/085473
Authority: WO
Inventors: 任恺; 任婷
Original assignee: Ren Kai; Ren Ting
Priority date: 2012-10-25
Filing date: 2012-11-28
Publication date: 2014-05-01

Abstract

A protective housing for a mobile terminal and a mobile terminal device having the protective housing. The protective housing (100) for a mobile terminal (200) comprises: a rear housing (2), and a front lower housing (1), wherein the front lower housing (1) is connected to the rear housing (2); a lower containing space (101) with an open top surface used for containing the lower part of the mobile terminal (200) is formed by the front lower housing (1) and the lower part of the front surface of the rear housing (2); the front surface of the front lower housing (1) is provided thereon with an expanded keyboard; and the protective housing (100) is provided with a first interface (3) used for connecting to the expanded keyboard. The protective housing (100) for a mobile terminal (200) cannot only protect the mobile terminal (200), but also provides a keyboard for the mobile terminal (200). Therefore, a user can conveniently select an input keyboard of the mobile terminal (200). The input flexibility is improved; the operation is convenient; it is difficult for a failure to occur; and the applicability of the mobile terminal (200) is increased.

Description

Protective case and mobile terminal device for mobile terminal

Technical field

The present invention relates to a protective case and a mobile terminal device for a mobile terminal. Background technique

Mobile terminals have been widely used as communication tools. In recent years, full-screen mobile terminals such as smartphones and tablets have become the mainstream of mobile terminals. Mobile terminals are divided into the following types by input:

First, the straight-type mobile terminal, the keyboard of the straight-type mobile terminal is usually located below the display screen (for example, a BlackBerry with a QWERTY full keyboard;).

Second, a flip, slide or flip-type mobile terminal, the keyboard of this type of mobile terminal can usually be placed on a separate cover from the display screen, using, flipping, sliding or rotating the cover to expose the keyboard.

Third, for a mobile terminal with a touch screen, when input is required, the touch display keyboard is displayed on the display screen and occupies a part of the display screen. Therefore, this type of mobile terminal is also commonly referred to as a full-screen mobile terminal (so-called full-screen mobile terminal). Usually, the display screen occupies most of the area on the front side of the mobile terminal. In addition, this type of mobile terminal can also be input by voice.

The present application is made by the inventor for the following facts and problems: The first and second types of mobile terminals in the prior art are generally referred to as keyboard type mobile terminals, and if the keyboard is a full keyboard, it can be called The full keyboard mobile terminal, the keyboard and the display screen may be disposed on the front surface of the mobile terminal housing or on a cover separately provided from the display screen.

The third type of mobile terminal is called a full screen mobile terminal and has a touch display keyboard. Both full keyboard mobile terminals and full screen mobile terminals have advantages and disadvantages. The display area of the full-screen mobile terminal is large, and the display effect is good when browsing the webpage; however, the input mode is not as convenient and fast as the full keyboard compared with the QWERTY full keyboard. However, although the full keyboard phone is convenient to input, the keyboard occupies a large part of the front surface of the mobile phone, and the display area is small. For flip, slide or flip-type mobile terminals, the keyboard needs to be flipped, slid or rotated when using the keyboard, which has a complicated structure and high mechanical failure rate.

Since the full-screen mobile terminal has gradually become the mainstream of mobile terminals, it is very inconvenient for users who are accustomed to using the full keyboard because the full keyboard cannot be used. The inventors of the present application realized that it is necessary to provide a full keyboard to a full screen mobile terminal to improve operational convenience. However, if a full keyboard is provided for a full-screen mobile terminal in the form of an accessory, it is troublesome and is easily lost.

The inventor of the present application has found that: for a user who uses a mobile terminal, in order to protect the mobile terminal, a protective casing is usually used, and the protective casing has a plate shape, the card is sleeved on the back of the mobile terminal, or is a book-like shape, and uses mobile Open the protective case when the terminal is closed.

Thus, the inventors of the present application have proposed to set the keyboard to the mobile terminal, especially the protection of the full screen mobile terminal. On the casing, the mobile terminal can be touch-displayed by a keyboard input and a keyboard input function, and the keyboard on the protective casing is called an extended keyboard of the mobile terminal.

To this end, the present invention aims to solve at least to some extent one of the above technical problems or at least to provide a useful commercial choice.

An object of the present invention is to provide a protective cover for a mobile terminal, the front side of the protective cover is provided with an extended keyboard, and the mobile terminal can be inserted in the protective cover, so as not only can protect the mobile terminal, but also can pass The extended keyboard provided on the protective casing inputs information to the mobile terminal, and the operation is very convenient, the mechanical failure rate is low, and the reliability is high.

Another object of the present invention is to provide a mobile terminal device having the above protective casing.

A protective casing for a mobile terminal according to an embodiment of the present invention includes: a rear case; and a front lower case, the front lower case being connected to the rear case, the front lower case and the front surface of the rear case a lower receiving space for accommodating a lower portion of the mobile terminal and having a top surface open, wherein a front surface of the front lower case is provided with an extended keyboard, and the protective cover is provided for being connected to the extended keyboard. The first interface.

The protective cover according to the embodiment of the invention not only protects the mobile terminal, but also improves the keyboard for the mobile terminal, so the user can conveniently select the input keyboard of the mobile terminal, improve the flexibility of input, and is convenient to operate, and is not easy to appear. The failure improves the usability of the mobile terminal.

Preferably, the left side of the front lower case is pivotally connected to the left side of the rear case.

Preferably, the protective casing further includes a front upper casing connected to the rear casing, and the upper upper casing and the upper portion of the front surface of the rear casing form an upper receiving space, and the upper receiving space and the lower receiving space Communicating to form an accommodation space for accommodating the mobile terminal, a left side of the front upper case being pivotally coupled to a left side of the rear case to open and close a front surface of the upper receiving space.

Preferably, the protective casing is provided with a first sensor connected to the first interface for detecting opening and closing of the front upper casing.

Preferably, the left side of the front lower case is pivotally coupled to the left side of the rear case to open and close the front surface of the lower receiving space.

Preferably, the protective casing is provided with a second sensor connected to the first interface for detecting opening and closing of the front lower casing.

Preferably, the first interface is a USB interface.

Preferably, the extended keyboard is a full keyboard.

A mobile terminal device according to an embodiment of the present invention includes: a protective casing, the protective casing including a rear casing and a front lower casing connected to the rear casing, and the lower front casing and a lower portion of the front surface of the rear casing Forming a lower receiving space of the top surface, an extended keyboard is disposed on the front surface of the front lower casing, the protective casing is provided with a first interface; and a mobile terminal, the lower portion of the mobile terminal is fitted to the lower receiving In the space, the mobile terminal has a display screen, a touch display keyboard and a second interface, and the mobile terminal is configured to switch the extended keyboard to an effective input keyboard when the second interface is connected to the first interface. And adjusting the display area of the display screen to a portion opposite to the display screen exposing the lower receiving space. Preferably, the protective casing further includes a front upper casing connected to the rear casing, and the upper upper casing and the upper portion of the front surface of the rear casing form an upper receiving space, the upper receiving space and the lower The accommodation space communicates to form an accommodation space for accommodating the mobile terminal, and a left side of the front upper case is pivotally connected to a left side of the rear case to open and close a front surface of the upper accommodation space, The mobile terminal is configured to switch the extended keyboard to an effective input keyboard when the front upper case is opened and adjust a display area of the display screen to a portion exposing the lower receiving space to the display screen already.

Preferably, the protective casing is provided with a first sensor for detecting the front upper casing and opening and closing and being connected to the first interface.

Preferably, a left side of the front lower case is pivotally connected to a left side of the rear case to open and close a front surface of the lower receiving space, and the mobile terminal is configured to be on the front side The touch display keyboard is switched to an effective input keyboard and the display area of the display screen is adjusted to full screen display when both the case and the front lower case are opened.

Preferably, the protective casing is provided with a second sensor for detecting the front lower casing and opening and closing and being connected to the first interface.

Preferably, the extended keyboard is a full keyboard, and the first and second interfaces are USB interfaces.

The additional aspects and advantages of the invention will be set forth in part in the description which follows. DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is a schematic view of a protective case for a mobile terminal according to a first embodiment of the present invention;

2 is a schematic view of a protective case for a mobile terminal according to a second embodiment of the present invention;

3 is a schematic view of a protective case for a mobile terminal according to a third embodiment of the present invention;

4 is a schematic view of a protective case for a mobile terminal according to a fourth embodiment of the present invention;

Figure 5 is a schematic view of a protective case for a mobile terminal according to a fifth embodiment of the present invention;

Figure 6 is a schematic view of a protective case for a mobile terminal according to a sixth embodiment of the present invention;

FIG. 7 is a schematic diagram of a mobile terminal device according to an embodiment of the present invention; and

Figure 8 is a schematic diagram of a mobile terminal of a mobile terminal device according to an embodiment of the present invention. detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "previous", " Orientation or position of the following ",""left","right","vertical","horizontal","top","bottom","inside","outside","clockwise","counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawing, only for The invention and the description of the invention are not to be construed as limiting or limiting the invention.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features, either explicitly or implicitly. In the description of the present invention, the meaning of "plurality" is two or more, unless specifically defined otherwise.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like should be understood broadly, and may be either a fixed connection or a detachable connection, unless otherwise explicitly stated and defined. , or connected integrally; can be mechanical or electrical; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of the two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the present invention, the first feature "on" or "under" the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise explicitly defined and defined. It is not in direct contact but through additional features between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and below the second feature, or merely indicating that the first feature level is less than the second feature.

The mobile terminal device according to an embodiment of the present invention will be described below first.

As shown in Figures 7 and 8, a mobile terminal device according to an embodiment of the present invention includes a mobile terminal 200 and a protective casing 100. The mobile terminal 200 can be a mobile phone, a tablet computer, such as an Apple iPhone and an iPad tablet.

Advantageously, the mobile terminal 200 is a full-screen mobile terminal, and the full-screen mobile terminal means that the display screen occupies a large area of the front surface of the mobile terminal, for example, 80% or more. In addition to the display screen, the front surface of the full-screen mobile terminal 200 may have several Operation key. As shown in Fig. 8, the full screen mobile terminal 200 can be divided into an upper portion 202 and a lower portion 201 by a line L-L. It is to be noted that the upper portion 202 and the lower portion 201 can be divided according to specific needs and designs. The full screen mobile terminal 200 has a display screen, a touch screen keyboard (also referred to as a virtual keyboard or a soft keyboard), and a second interface 5.

The protective casing 100 of the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in Figs. 1-8, a protective case 100 for a mobile terminal according to an embodiment of the present invention includes a rear case 2 and a front lower case 1.

The front lower case 1 is connected to the lower portion of the rear case 2, and the front lower case 1 is opposed to the lower portion of the front surface of the rear case 2, thereby forming the lower accommodation space 101, the top surface of the lower accommodation space 101 is open, and the lower accommodation space 101 is for accommodating The lower portion 201 of the mobile terminal 200, in other words, the lower portion 201 of the mobile terminal 200 is inserted and fitted in the lower accommodation space 101. An expansion keyboard is provided on the front surface of the front lower casing 1, and the protective casing 100 is further provided with a first interface 3 for connection to the expansion keyboard.

In other words, the protective casing 100 according to the embodiment of the present invention is in the shape of a box, and the upper portion of the front surface of the casing is opened for exposing the upper portion 202 of the mobile terminal 200 inserted into the protective casing 100. Different specific embodiments of the protective casing 100 will be described in detail below.

In addition, it can be understood that the protective casing 100 can be provided with a plurality of through holes to respectively expose the mobile terminal 200. Such as earpieces, microphones, cameras, etc.

The protective case 100 according to the embodiment of the present invention can function to protect the mobile terminal 200, and an extended keyboard is provided on the front surface of the front lower case 1 to expand when the mobile terminal 200 is loaded into the protective case 100. The keyboard is connected to the mobile terminal 200, and the mobile terminal 200 can use the extended keyboard as the currently valid input keyboard, and input information into the mobile terminal 200 through the extended keyboard. When the mobile terminal 200 is taken out from the protective case 100, the mobile terminal 200 can input the keyboard that is currently valid for the touch-display keyboard general task, so the user can conveniently select the input keyboard of the mobile terminal 200, thereby improving the flexibility of the input. It is easy to operate and is not prone to failure, which improves the usability of the mobile terminal 200.

In a preferred embodiment of the present invention, the extended keyboard is a full keyboard, such as a full keyboard of a BlackBerry, and the following uses an extended keyboard as a full keyboard as an example. Preferably, the first interface 3 is a USB interface.

A protective case 100 in accordance with one embodiment of the present invention will now be described with reference to FIG. As shown in Fig. 1, the front lower case 1 has a plate shape with a full keyboard on the top. The rear case 2 includes a back plate 21, a left side plate 22, a right side plate 25, and a bottom plate 23 (see Fig. 2). The left side of the front lower case 1 is connected to the front side of the left side plate 22, and the right side of the front lower case 1 is connected to the front side of the right side plate 25. The first interface 3 is formed on the left side plate 22, but is not limited thereto.

The lower portion of the back plate 21, the lower portion of the left side plate 22, the lower portion of the right side plate 25, and the bottom plate 23 form a lower accommodation space 101 (see Fig. 2) with the front lower case 1, and the top surface of the lower accommodation space 101 is open. The rear case 2 is not provided with a top plate, so that the mobile terminal 200 can be inserted into the protective case 100. When the mobile terminal 200 is inserted into the protective casing 100, the front lower casing 1 blocks a part of the display of the mobile terminal 200.

It is to be understood that the size and shape of the lower accommodation space 101 is adapted to the lower portion 201 of the mobile terminal 200 to accommodate the lower portion 201, for example, the lower portion 201 is engaged in the lower accommodation space 101. Similarly, the upper receiving space surrounded by the upper portion of the left side panel 22, the right side panel 25 and the back panel 21 is adapted to the upper portion 202 of the mobile terminal 200 to accommodate the upper portion 202, and the protective casing 100 is secured to the mobile terminal 200. It can be the same as the existing protective case and will not be described in detail here.

The width of the left side plate 22 and the right side plate 25 (the dimension in the front-rear direction) may be smaller than the distance between the front lower case 1 and the back plate, and may be an inwardly curved arc to catch the upper portion 202 of the mobile terminal 200. the edge of.

In some embodiments of the present invention, the first interface 3 can be automatically connected to the second interface 5 of the mobile terminal 200 when the mobile terminal 200 is inserted into the protective casing 100. Preferably, the wires can be connected at the first interface 3 and the wires can be manually connected to the second interface 5. Alternatively, a switch is provided on the protective case 100, and the first interface 3 and the second interface 5 are switched or disconnected by the switch.

It is to be noted that although the protective casing 100 is divided into the front lower casing 1 and the rear casing 2, the front lower casing 1 and the rear casing 2 may be integrally formed. The keys of the extended keyboard may be formed directly on the outer surface of the front lower case 1, or an opening may be provided in the front lower case 1 to fix the separately manufactured extension keyboard to the front lower case 1. Further, although the rear case 2 is described above including the back plate 21, the left side plate 22, the right side plate 25, and the bottom plate 23, it is understood that the left side plate 22, the right side plate 25, and the bottom plate 23 can also be regarded as front down The constituent part of the shell 1.

2 shows a further embodiment of the protective casing 100. Compared to FIG. 1, the rear casing 2 of FIG. 2 has no right side plate 25. In other words, the right side surface of the lower receiving space 101 is also open, thereby moving the terminal. The 200 can be inserted into the protective case 100 from the right side or can be inserted into the protective case 100 from the top. 3 shows a further embodiment of the protective casing 100. Compared to FIG. 2, the rear casing 2 is provided with a top plate 24, whereby the mobile terminal 200 is inserted into the protective casing 100 from the top.

In some implementations of the invention, the left side of the front lower casing 1 is pivotally connected to the left side of the rear casing 2, for example, the left side of the front lower casing 1 and the front side of the left side panel 22 are pivotally It is connected so that the front of the lower accommodating space 101 can be opened and closed by rotating the front lower casing 1.

A protective casing 100 in accordance with some embodiments of the present invention is described below with reference to FIG. Compared with the embodiment shown in Fig. 1, the protective casing 100 shown in Fig. 4 further includes a front upper casing 4, the front upper casing 4 is connected to the rear casing 2, and the upper portions of the front upper casing 4 and the front surface of the rear casing 2 are upper. The upper accommodation space 102 is formed, and the upper accommodation space 102 communicates with the lower accommodation space 101 to form an accommodation space for accommodating the upper portion 202 of the mobile terminal 200, so that the accommodation space is for housing the entire mobile terminal 200. The accommodation space is shaped and sized to match the mobile terminal 200 to secure the mobile terminal 200 within the protective casing 100.

The left side of the front upper case 4 is pivotally connected to the left side of the rear case 2 to open and close the upper receiving space 102. More specifically, the left side of the front upper case 4 is pivotally connected to the front side of the left side plate 22.

In the embodiment shown in Figure 4, the mobile terminal 200 is inserted into the protective casing 100 from the top.

Preferably, the left side of the front lower case 1 is pivotally connected to the left side of the rear case 2 to open and close the lower receiving space

The front surface of 101. Thereby, the mobile terminal 200 can be placed into the sheath case 100 from the front by opening the front lower case 1 and the front upper case 4.

In a preferred embodiment of the present invention, the protective casing 100 is provided with a first sensor and a second sensor (not shown), and the first and second sensors are respectively connected to the first interface 3, and the first sensor is used for detecting The upper case 4 is opened and closed, and the second sensor is used to detect the opening and closing of the front lower case 1.

5 and 6 respectively show another embodiment of the protective casing 100. Compared with the embodiment shown in Fig. 4, in the embodiment shown in Fig. 5, the rear casing 2 is provided with a top plate 24, and the right side is removed. Side panel 25. In the embodiment shown in Figure 6, the right side panel 25 is removed.

Fig. 7 shows a state in which the mobile terminal 200 is housed in the protective casing 100, and Fig. 8 shows a schematic view of the mobile terminal 200 taken out from the protective casing 100.

Next, a mobile terminal device according to an embodiment of the present invention will be described next.

It can be understood that, in the embodiment shown in FIG. 1-3, when the lower case 1 and the rear case 2 are fixedly connected, the protective cover 100 is adapted to accommodate a mobile phone, such as an iphone; the lower case 1 and the rear case 2 are currently pivotable. In the case of a ground connection, the protective casing 100 is particularly adapted to accommodate a tablet, such as an ipad, as will be described in more detail below. In the embodiment shown in Figures 4-6, the front lower casing 1 and the front upper casing 4 are particularly adapted to accommodate a tablet computer when they are pivotally coupled to the rear casing 2.

As shown above, when the mobile terminal 200 is loaded into the protective case 100, when the second interface 5 is automatically turned on with the first interface 3, or manually turned on (for example, manually connecting a wire or a toggle switch), the mobile terminal 200 The full keyboard on the front lower case 1 is switched to an effective input keyboard and the display area of the display screen is adjusted to match the portion of the display that exposes the lower accommodation space 101. In other words, the portion of the display screen blocked by the front lower case 1 is no longer an effective display area, and the mobile terminal 200 displays the contents to be displayed on the portion outside the lower accommodation space 101, at this time on the front lower case 1. The full keyboard is the currently valid input keyboard, and the information can be input to the mobile terminal 200 through the full keyboard, so the input is fast, This is especially beneficial for users who are used to full keyboard input. When a large display area is required, for example, when browsing a webpage, the mobile terminal 200 can be taken out from the protective casing 100. At this time, the second interface 5 is disconnected from the first interface 3, and the mobile terminal 200 adjusts the display screen to full screen display. And switching the touch display keyboard that it has itself to the currently active input keyboard, and inputting information to the mobile terminal 200 through the touch screen keyboard.

Alternatively, when a large display area is required and it is not desirable to take the mobile terminal 200 out of the protective case 100, the front lower case 1 may be rotated to open the lower receiving space 101 to expose the entire display screen of the mobile terminal 200, while The second detector detects that the front lower case 1 is open, and can automatically disconnect the second interface 5 from the first interface 3, or manually disconnect the communication space of the lower receiving space 101. Similarly, the mobile terminal 200 adjusts the display screen to full The display is displayed, and the touch screen keyboard that it has is switched to the currently active input keyboard, and information can be input to the mobile terminal 200 through the touch screen keyboard, which is particularly advantageous for the tablet computer.

For example, the mobile terminal 200 may be provided with a keyboard expansion module or a chip for switching between the extended keyboard and the touch screen keyboard. The mobile terminal 200 may further be provided with a detection module or a chip for detecting the second interface 5 and the When the detecting module detects that the second interface 5 is connected to the first interface 3, the keyboard expansion module or the chip switches the extended keyboard to the currently valid input keyboard, when the detecting module detects When the second interface 5 is disconnected from the first interface 3, the keyboard expansion module or chip switches the touch screen keyboard to the currently valid input keyboard.

Preferably, when the front lower case 1 of the protective cover 100 is rotatable, when the lower case 1 is opened, the second sensor transmits the detected information that the front lower case 1 is opened to the detection module, and the keyboard expansion module or chip is based on the front The information that the lower case 1 is opened can automatically switch the touch screen keyboard to a valid input keyboard. When the lower case 1 is closed, the keyboard expansion module or chip can automatically switch the extended keyboard to an effective input keyboard. It can be understood that the second sensor can be a proximity sensor that is self-contained by the mobile terminal 200 itself.

In the case where the protective casing 100 is provided with the front upper casing 4, the mobile terminal 200 switches the touch display keyboard to the effective input keyboard and adjusts the display area of the display screen only when both the front upper casing 4 and the front lower casing 1 are opened. full-screen display. When either of the front upper case 4 and the front lower case 1 is turned off, the full keyboard is switched to the valid input keyboard.

The next step describes the adjustment of the display area size of the display. It is assumed that the display resolution of the mobile terminal is 640*480, that is, the display area of the display is divided into 640*480 dots, 640 lines, and 480 columns per line. The mobile terminal's display driver will record these parameters as current display parameters and the content that needs to be displayed on the screen is mapped to a 640*480 dot matrix. When you need to adjust the display area, for example, adjust the display area to 480*480, that is, the display area changes from 640 lines to 480 lines, each line is still 480 columns; the upper 480 lines of the 640 lines are used as the new display. The area, while the lower 120 rows are obscured by the front lower casing 1. The display driver records these parameters (the upper 480 lines, 480 columns per line) and uses these parameters as the current display parameters. The content to be displayed is mapped to the 480*480 dot matrix. Such a method of adjusting the display area in the underlying display driver can be easily understood by those skilled in the art and will not be described in detail herein. Of course, other methods can also be used, such as adjusting the display area at the application layer.

According to the mobile terminal device of the embodiment of the present invention, the protective case 100 can protect the mobile terminal 200, and by providing a full keyboard on the front surface of the protective case 100, by switching, the user can conveniently use the touch screen keyboard or the whole The keyboard inputs information to the mobile terminal 200, satisfies different usage habits, and is less prone to failure, improving convenience and applicability. The protective case 100 according to the embodiment of the present invention, in addition to having a full keyboard function, or a protective case, can protect the mobile terminal 200 while being made to have various stylish appearances.

When the user needs a quick input mode, the mobile terminal 200 can be inserted into the protective cover 100 to use full keyboard input, the full keyboard overlaps with a part of the display screen of the mobile terminal 200, and the protective cover 100 and the mobile terminal 200 are combined into one. Integrated as a whole, easy to hold and use. At this time, the display area of the display screen is automatically adjusted, and the unscreened portion of the display screen is used as the display area. The mobile terminal in this state is similar to the shape of the BlackBerry full keyboard mobile phone; When the user needs to browse the webpage and wants a large display screen, the mobile terminal 200 is pulled out from the protective casing 100, and the full screen of the mobile terminal 200 can be used.

The keyboard on the front lower case 1 can contain 26 English letters, Alt, Enter Confirmation Key, Space, Shift, etc. The number keys are multiplexed on a part of the letters, and the numbers are completed by shifting the corresponding alphanumeric composite keys. Input. In addition, there may be an electric circuit inside the protective casing 100, and the circuit may include a detecting unit, for example, detecting the communication and disconnection of the first interface 3 and the second interface 5, and detecting that the front lower casing 1 and the front upper casing 4 are opened. The first and second sensors are connected to each other, and the information is sent to the mobile terminal 200. At this time, the above detection module or chip may not be disposed in the mobile terminal 200. Moreover, the keyboard expansion module or chip may also be disposed in the protective casing 100, and is no longer disposed in the mobile terminal 200. The modules or chips may communicate with the host in the mobile terminal 200 through the communication between the first interface 3 and the second interface 5. The chips are connected.

In some embodiments of the invention, as described above, both the first interface 3 and the second interface 5 may be USB interfaces. The USB interface of the protective case 100 can be connected to the USB interface of the mobile terminal, and the mobile terminal 200 detects whether the protective case 100 is inserted through the USB port, and further identifies the model of the protective case 100; the inside of the protective case 100 can have The identification unit, when the protection case 100 is connected to the mobile terminal through the USB port, the identification unit is recognized by the mobile terminal 200. Through such identification, the mobile terminal 200 can acquire the physical parameters of the protection case 100, including the size and the button. Number, location, distribution, etc. The feature of the buttons on the extended keyboard is that the portion of each button that is in contact with the capacitive touch screen has a certain conductivity, so that when the button is in contact with the capacitive touch display, the capacitive touch screen can detect the contact between the button and the touch. When the mobile terminal 200 is inserted into the protective casing 100, the two form a complete casing, so that the mobile terminal 200 can be formed integrally with the protective casing 100, and is easy to hold. When the mobile terminal 200 detects that the protective cover 100 is inserted, the display area is adjusted, and the display area that is not covered by the protective cover 100 is used for display. Since the mobile terminal 200 can know the insertion of the protective cover 100 through the USB port, And the parameters of the protective casing 100 are identified. When the button is pressed and the position information of the pressed is recognized by the touch, it can be known which one or which of the keys is pressed. In this embodiment, there may be no keyboard scanning circuitry in the protective casing 100.

When the protective cover 100 is used for the protective case of the ipad, the front upper case 4 is opened and the front lower case 1 is closed, and the front upper case 4 and the front lower case 1 are all opened using the extended display keyboard using the extended keyboard. In this case, the first and second interfaces may be connected all the time, and the first and second interfaces are turned on or off by the opening and closing of the front upper case 4 and the front lower case 1. From the practical point of view, the mobile phone is easier to insert and pull out. And ipads are usually not easy to insert, pull out, are to open the front, or close the front. Since the ipad itself usually has sensor detection to close it. Therefore, preferably, the first and second sensors of the protective casing 100 may be provided on the ipad, one on each side. When it is detected that the front upper case 4 is opened and the front lower case 1 is closed, the display area is adjusted, and the upper part of the display screen is used as the display area, and the extended keyboard is started to be activated; When the sensor simultaneously detects that the front upper case 4 and the front lower case 1 are open, the touch display keyboard is resumed.

In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, it is understood that the foregoing embodiments are illustrative and not restrictive Variations, modifications, alterations and variations of the above-described embodiments are possible within the scope of the invention.

Claims

claims

1. A protective case for a mobile terminal, characterized in that it includes:

rear case; and

The front lower shell is connected to the rear shell, and the lower part of the front surface of the front lower shell and the rear shell forms a lower accommodation space with an open top surface for accommodating the lower part of the mobile terminal, An expansion keyboard is provided on the front surface of the front lower shell, and the protective cover is provided with a first interface for connecting to the expansion keyboard.

2. The protective case for a mobile terminal according to claim 1, wherein the left side of the front lower case is pivotally connected to the left side of the rear case.

3. The protective case for a mobile terminal according to claim 1 or 2, further comprising a front upper shell connected to the rear shell, the front upper shell and the front surface of the rear shell The upper part forms an upper accommodation space, and the upper accommodation space communicates with the lower accommodation space to form an accommodation space for accommodating the mobile terminal. The left side of the front upper shell and the left side of the rear shell Pivotably connected to open and close the front surface of the upper accommodation space.

4. The protective case for a mobile terminal according to claim 3, wherein the protective case is provided with a switch connected to the first interface and used to detect opening and closing of the front upper shell. First sensor.

5. The protective case for a mobile terminal according to any one of claims 1 to 4, wherein the left side of the front lower case and the left side of the rear case are pivotable. Connected to open and close the front surface of the lower accommodation space.

6. The protective case for a mobile terminal according to claim 5, wherein the protective case is provided with a switch connected to the first interface and used to detect opening and closing of the front lower shell. Second sensor.

7. The protective case for a mobile terminal according to any one of claims 1-6, wherein the first interface is a USB interface.

8. The protective case for a mobile terminal according to any one of claims 1 to 7, wherein the extended keyboard is a full keyboard.

9. A mobile terminal device, characterized by including:

Protective cover shell, the protective cover shell includes a rear shell and a front lower shell connected to the rear shell, the front lower shell and the lower part of the front surface of the rear shell form a lower accommodation space with an open top surface, the front lower shell An expansion keyboard is provided on the front surface of the lower shell, and the protective case is provided with a first interface; and

Mobile terminal, the lower part of the mobile terminal fits in the lower accommodation space, the mobile terminal has a display screen, a touch display keyboard and a second interface, the mobile terminal is configured to connect the second interface and the third interface. When an interface is turned on, the extended keyboard is switched to an effective input keyboard and the display area of the display screen is adjusted to match the portion of the display screen that exposes the lower accommodation space.

10. The mobile terminal device according to claim 9, wherein the protective case further includes an upper front shell connected to the rear shell, and the upper front shell and the upper part of the front surface of the rear shell An upper accommodation space is formed, and the upper accommodation space is connected with the lower accommodation space to form an accommodation space for accommodating the mobile terminal, and the left side of the front upper shell and the left side of the rear shell are pivotable. Connected to open and close the front surface of the upper accommodation space, the mobile terminal is equipped with It is configured to switch the extended keyboard to an effective input keyboard when the front upper shell is opened and adjust the display area of the display screen to match the portion of the display screen that exposes the lower accommodation space.

11. The mobile terminal device according to claim 10, wherein the protective case is provided with a first sensor for detecting the opening and closing of the front upper shell and connected to the first interface.

12. The mobile terminal device according to claim 11, wherein the left side of the front lower case is pivotally connected to the left side of the rear case to open and close the lower accommodation space. On the front surface, the mobile terminal is configured to switch the touch display keyboard to an effective input keyboard and adjust the display area of the display screen to full-screen display when both the front upper shell and the front lower shell are opened.

13. The mobile terminal device according to claim 12, wherein the protective case is provided with a second sensor for detecting the opening and closing of the front lower shell and connected to the first interface.

14. The mobile terminal device according to any one of claims 9-13, wherein the extended keyboard is a full keyboard, and the first and second interfaces are USB interfaces.