JPH10149111A - Display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve portability and to reduce an area required for packing by turning a liquid crystal display device to a closed state at the time of not using a display device. SOLUTION: A liquid crystal display module 12 serving also as an upper lid is fixed to a lower lid part 13 serving also as a fixing base by a connection part 14 and a mechanism for opening and closing the liquid crystal module (upper lid) 12 is incorporated in the connection part 14. Also, the lower lid part 13 is mounted on an installation place where this display device 10 is installed, on a desk or the like for instance, through the bottom surface (installation surface) of the lower lid part 13 and a display control circuit is incorporated in the lower lid part 13. The liquid crystal display module 12 is attached to the fixing base 13 freely openably and closably to a surface on the opposite side of the installation surface of the fixing base 13. At the time of not using the display device 10, since the liquid crystal display module 12 is turned to the closed state and a notebook state is attained, the display device 10 is erected and kept at a place not to be an obstacle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device, and more particularly, to a display device using a liquid crystal display device, which has improved portability or can effectively utilize space.

[0002]

2. Description of the Related Art A liquid crystal display device has been conventionally used as a display unit of a notebook computer or the like by utilizing a flat display, light weight, low power consumption and other features. In this liquid crystal display device, the display size of the liquid crystal display panel has been increased and the number of pixels has been increased in response to a demand for use of an enlarged display capacity. In recent years, monitor devices for personal computers or workstations have attracted attention as a new use of a liquid crystal display device having such a large-sized and high-definition liquid crystal display panel. By using a liquid crystal display device having a large and high-definition liquid crystal display panel as a display device of a personal computer or a workstation, a monitor device can be downsized.
Lightening and low power consumption can be achieved.

FIG. 10 is an external view showing a schematic configuration of an example of a conventional personal computer system using a liquid crystal display device as a display device.

In FIG. 1, reference numeral 100 denotes a personal computer (hereinafter, referred to as a personal computer), 200 denotes a display device, 300 denotes a keyboard, and 400 denotes a mouse.

FIG. 11 is a block diagram showing a schematic configuration of the personal computer 100 shown in FIG.

In general, the personal computer 100 includes a processor section 101, a memory section 102, an input / output control section, and a bus line 103 connecting the above sections to each other. The input / output control unit, based on an instruction from the processor unit 101,
It controls data transfer between the memory unit 102 and the input / output device or input / output interface.

In the example shown in FIG. 11, the input / output control unit
MA controller 104, hard disk controller 110 for controlling hard disk device 120, flexible disk controller 111 for controlling flexible disk device 121, display controller 112 for controlling display device 123, keyboard controller 113 for controlling keyboard 300, mouse A mouse control unit 114 controls the printer 400, a printer control unit controls the printer 125, and an RS-232C interface control unit 116 controls the modem 126.

The hard disk device 120, the flexible disk device 121, and the modem 126 can be built in the personal computer 100.

As a method for transmitting an image signal from the personal computer 100 to the display device 200 shown in FIG. 10, there are an analog interface method for transmitting an image signal of an analog signal and a digital interface method for transmitting an image signal of a digital signal.

In the example shown in FIG. 10, a case of an analog interface system in which an image signal of an analog signal is transmitted from the personal computer 100 to the display device 200 will be described. In this case, the personal computer 100 transmits the horizontal synchronizing signal (Hsync), the vertical synchronizing signal (Vsync), and R
・ Display each analog video signal for GB on display device 2
Send to 00.

FIG. 12 is a block diagram showing a schematic configuration of the display device 200 shown in FIG.

The display device 200 includes a display control circuit 210 and a liquid crystal display module 220. A horizontal synchronization signal (Hsync) transmitted from the personal computer 100,
The vertical synchronization signal (Vsync) and the analog video signals for R, G, and B are input to the display control circuit 210 of the display device 200. The R, G, and B analog video signals are supplied to the A / D converter 2 in the display control circuit 210.
At 11, they are converted into R, G, and B digital video signals (display data) and temporarily stored in the memory 212.

The horizontal synchronization signal (Hsync) and the vertical synchronization signal (Vsync) are input to the control circuit 215. The horizontal synchronization signal (Hsync) is also input to the clock generation / PLL circuit 213. The clock generation / PLL circuit 213 outputs a horizontal synchronization signal (Hsync).
To generate a clock signal (CL) synchronized with. The clock generation circuit 214 generates a clock signal to be supplied to the control circuit 215.

The control circuit 215 converts, for example, the polarities of the horizontal synchronizing signal (Hsync) and the vertical synchronizing signal (Vsync) into a format suitable for the liquid crystal display module 220, and then converts the horizontal synchronizing signal (Hsync) and the vertical synchronizing signal (Hsync). Synchronization signal (Vsync) and clock signal (CL)
To the liquid crystal display module 220, read out the R, G, and B digital video signals from the memory 212 at a predetermined timing, and transmit the read out R, G, and B digital video signals to the liquid crystal display module 220. .

The liquid crystal display module 220 includes a control circuit 2
15 (a horizontal synchronization signal (Hs
(sync), a vertical synchronizing signal (Vsync), a clock signal (CL)), and each of the R, G, and B digital video signals to display an image on a liquid crystal display panel in the liquid crystal display module 220.

FIG. 13 is a block diagram showing a schematic structure of a TFT type liquid crystal display module which is an example of the liquid crystal display module 220 shown in FIG.

A liquid crystal display panel (TFT-LC) shown in FIG.
D) has a plurality of pixels which are formed in a matrix and are arranged in the intersection region between the drain signal line and the gate signal line. A drain driver section 224 in which a plurality of drain drivers 225 are arranged is provided above the liquid crystal display panel (TFT-LCD), and a plurality of gate drivers are provided on side surfaces of the liquid crystal display panel (TFT-LCD). The gate driver unit 226 in which the 227 is disposed and the interface unit 221 are disposed. Here, the interface unit 221 includes a controller unit 222 and a power supply unit 223.
It is composed of

The controller 222 is composed of one semiconductor integrated circuit (LSI), and receives a clock signal (CL) and a horizontal synchronizing signal (H) transmitted from the control circuit 215.
sync), vertical synchronizing signal (Vsync) and R · G
Control and drive the drain driver 225 and the gate driver 227 based on each analog video signal for B.

The power supply unit 223 includes a drain driver 225
To be supplied to the TFT, a thin film transistor (TF
A drive voltage to be applied to the gate of T) and a drive voltage to be applied to the common electrode are respectively generated and supplied to the drain driver 225 or the gate driver 227.

[0020]

FIG. 14 is a perspective view showing an example of the display device 200 shown in FIG.

In the display device 200 shown in FIG. 1, a liquid crystal display module 232 in which a liquid crystal display panel (TFT-LCD) is incorporated is connected to a fixing base 23 by a connecting portion 234.
Fixed to 3. In addition, a mechanism for adjusting the angle of the liquid crystal display panel (TFT-LCD) is incorporated in the coupling unit 234. The display control circuit 210 shown in FIG.
It is incorporated in the fixed base 233.

As shown in FIG. 14, a display device 200 using a conventional liquid crystal display device (liquid crystal display module 220) adopts a desktop type. This conventional display device 200 has features such as a small depth dimension, light weight, and low power consumption as compared with a display device using a CRT (cathode ray tube) display device.

However, even when the display device 200 is not used, the configuration is the same as that when the display device 200 is used, and it is a stationary / desktop type. For this reason, a display device using a conventional liquid crystal display device has a drawback that it has a large capacity and lacks portability (portability), or a large packing capacity required for transportation.

As described above, the display device 200 using the conventional liquid crystal display device does not always take the form of making full use of the characteristics of the liquid crystal display device.
It is not portable because of its thinness and light weight, and its packaging capacity is small.

In a personal computer system, as shown in FIG. 10, a personal computer 100, a display device 200, a keyboard 300, a mouse 400
It is general that these are combined. However, the conventional personal computer system requires a storage location for the personal computer 100, the display device 200, or the keyboard 300 even when the personal computer system is not in use. On the desk) cannot be used effectively.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a display device which is portable and has a small packing capacity. It is an object of the present invention to provide a technology that can make full use of features.

[0027] Another object of the present invention is to provide a technology that enables a display device to make effective use of its installation space.

The above and other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

[0029]

SUMMARY OF THE INVENTION Among the inventions disclosed in the present application, the outline of a representative one will be briefly described.
It is as follows.

[0030] In a display device comprising a fixed base placed on a desk or the like via an installation surface and a liquid crystal display device attached to the fixed base, the liquid crystal display device is opposite to the installation surface of the fixed base. It is attached to the fixed base so as to be freely opened and closed with respect to the side surface.

The fixed base includes a second liquid crystal display device on a surface of the fixed base opposite to an installation surface.

In a display device comprising a fixed base having an installation surface facing a surface of a desk or the like, and a liquid crystal display device attached to the fixed base, the liquid crystal display device has storage means for storing a keyboard. Prepare.

The liquid crystal display device has a built-in storage device for storing information.

The liquid crystal display device has a built-in information processing section, a memory section, an input / output control section, and a bus line connecting the above sections.

According to the above means, the liquid crystal display device can be closed when the display device is not used, so that the portability can be improved and the area required for packaging can be greatly reduced.

In addition, the display device can be set upright and stored in an unobstructed place on a desk or the like, so that the storage space can be reduced and the space on the desk or the like can be effectively used. it can.

Further, it can be protected from mechanical shock applied to the liquid crystal display panel or dust adhering to the liquid crystal display panel due to carelessness from the outside.

According to the above-mentioned means, since the second liquid crystal display device is incorporated in the fixed base to form a multi-display, the effective screen size can be doubled and the display capacity can be doubled. .

According to the above-mentioned means, when the display device is not used, the keyboard can be housed in the liquid crystal display device and stored in an unobstructed place on a desk or the like, so that the space on the desk or the like can be effectively used. be able to.

[0040]

Embodiments of the present invention will be described below in detail with reference to the drawings.

In all the drawings for describing the embodiments of the present invention, components having the same functions are denoted by the same reference numerals, and their repeated description will be omitted.

[First Embodiment of the Invention] FIG. 1 is a perspective view showing a schematic configuration of a display device according to one embodiment (first embodiment of the present invention) of the present invention.

As shown in the figure, the display device 10 of the present embodiment employs a foldable / notebook type. Here, FIG. 1A shows an external view of a folded state, and FIG. 1B shows an external view of a state in which a notebook is opened.

In the display device 10 according to the present embodiment, the liquid crystal display module 12 also serving as the upper cover is fixed to the lower cover 13 also serving as a fixing base by the connecting portion 14. The connecting portion 14 includes a liquid crystal display module (top cover).
A mechanism for opening and closing the shutter 12 is incorporated. In addition, the lower lid 13 is placed on an installation place where the display device 10 (or a personal computer system) is installed, for example, on a desk or the like via the bottom surface (installation surface) of the lower lid 13. The lower cover 13 incorporates a display control circuit 210 shown in FIG. As the liquid crystal display module 12, for example, a TFT type liquid crystal display module shown in FIG. 13 can be used.

As shown in FIGS. 1 (a) and 1 (b), in the present embodiment, when the display device 10 is not used, the liquid crystal display module (top cover) 12 is closed, and the notebook state is set. Therefore, the portability can be improved. FIG. 2A and FIG.
As shown in FIG. 2B, when the display device 10 is not used, the display device 10 can be set upright and stored in a place on a desk or the like that does not interfere, so that the storage space can be reduced and the desk or the like can be reduced. The space above can be used effectively. Furthermore, the area required for packing can be significantly reduced.

In addition, when the display device 10 is not used, the liquid crystal display module (upper lid) 12 is kept closed, so that a mechanical device added to the liquid crystal display panel (TFT-LCD) is inadvertently applied from the outside. shock,
Alternatively, it can be protected from dust or the like adhering to a liquid crystal display panel (TFT-LCD).

When the display device 10 is used, the opening angle of the liquid crystal display module (upper lid) 12 can be set to an arbitrary angle, so that the user can use the display device 10 at an angle desired by the user.

[Second Embodiment of the Invention] FIG. 3 is a perspective view showing a schematic configuration of a display device according to another embodiment (second embodiment of the present invention) of the present invention.

As shown in the figure, the display device 20 of the present embodiment also adopts a foldable / notebook type. Here, FIG. 3A shows an external view in a folded state, and FIG. 3B shows an external view in a state where a notebook is opened.

The display device 20 of the present embodiment is
As shown in FIG. 3B, apart from the first liquid crystal display module (upper lid) 22, a second liquid crystal display module is also incorporated in a lower lid 23 to form a first liquid crystal display panel (TF).
T-LCD1) and a second liquid crystal display panel (TFT-L
CD2).

As described above, in this embodiment, since the multi-display configuration is employed, the effective screen size can be doubled, and the display capacity can be doubled. The viewing angle of the second liquid crystal display panel (TFT-LCD2) can be adjusted by providing a film capable of adjusting the viewing angle on the second liquid crystal display panel (TFT-LCD2).

Also in this embodiment, by closing the liquid crystal display module (top cover) 22, similar to the first embodiment, portability, packing capacity, and other secondary effects are provided.

In this case, the first liquid crystal display panel (TF
T-LCD1) and a second liquid crystal display panel (TFT-L
CD2) size or liquid crystal display module format (active matrix type, simple matrix type, etc.)
Need not necessarily match.

[Third Embodiment of the Invention] FIG. 4 is a perspective view showing a schematic configuration of a display device according to another embodiment (third embodiment of the present invention) of the present invention.

The display device 30 of the present embodiment is
An installation location where the display device 30 is installed, for example,
It is designed to make effective use of the space above a desk or the like. Here, FIG. 4A is an external view of the display device 30 in a used state, and FIG. 4B is an external view of the display device 30 in an unused state.

As shown in FIG. 4, in the present embodiment, when the display device 30 is not used, the keyboard 300 is housed above the liquid crystal display panel (TFT-LCD) of the liquid crystal display module 32. This allows
When the display device 30 is not used, a mechanical shock applied to the liquid crystal display panel (TFT-LCD) or a liquid crystal display panel (T
FT-LCD) can be protected from dust and the like adhering to it.

A keyboard 400 is provided on a part of the liquid crystal display module 32 on the liquid crystal display panel (TFT-LCD) side.
Is provided. The support member 36 has an insertion hole 35 into which a lock pin 310 provided on the keyboard 300 is inserted. Also,
The liquid crystal display panel (TFT-L) of the liquid crystal display module 32
An elastic member 37 for fixing the keyboard 400 is provided on the upper surface on the CD) side.

FIG. 5 is a diagram showing the correspondence between the support members 36 provided on the liquid crystal display module 32 and the lock pins 310 provided on the keyboard 300. FIG.
FIG. 3 is a cross-sectional view illustrating a schematic configuration of a lock pin 310 provided on the keyboard 300.

When the keyboard 300 is supported by the support member 36, a lock pin 310 provided on the keyboard 300 is inserted into the insertion hole 35 of the support member 36, as shown in FIG.

As shown in FIG. 6, this lock pin 310
Has a convex portion 311, and a coil spring (compression torsion coil spring) 312 is inserted into the rear side of the convex portion 311. The lock pin 310 is pressed to the outside of the keyboard 300 by the coil spring 312.

The keyboard 300 is connected to the liquid crystal display module 3
2, the lock pin 310 is attached to the keyboard 30 by the detachable pin 313 projecting from the guide hole 314.
The lock pin 310 is inserted into the insertion hole 35 by the coil spring 312 by pushing the keyboard 300 into the lock member 310 and fitting the keyboard 300 between the support members 36.

When the keyboard 300 is to be removed from the liquid crystal display module 32, the keyboard 300 can be removed from the support member 36 by pushing the lock pin 310 into the keyboard 300 with the detachable pin 313.

Therefore, according to the present embodiment, the keyboard 300 is firmly fixed to the liquid crystal display module 32 by the lock pin 310 and the elastic member 37 provided on the keyboard 300.
When 0 is not used, it is possible to prevent the keyboard 300 from dropping off the liquid crystal display module 32.

On the lower surface of the liquid crystal display module 32, a fixed base 33 is provided rotatably. When the display device 30 is used, as shown in FIG. 4, the fixing base 33 is rotated so that the liquid crystal display module 32 stands up and is fixed. When the display device 30 is not used, as shown in FIG. 5, the fixing base 33 is stored on the lower surface of the liquid crystal display module 32.

Thus, in the present embodiment, the display device 30 can be easily carried, and the portability can be improved. Further, when the display device 30 is not used, the liquid crystal display module 32 and the keyboard 300 can be stored in a place out of the way on a desk or the like, so that the space on the desk can be effectively used. Become. Furthermore, the area required for packing can be significantly reduced.

The structure of the pointing member 36 is not limited to that shown in FIG. 4, and the pointing member 36 may have any structure as long as it can support the keypad 300. Similarly, the configuration of the elastic member 37 is not limited to that shown in FIG.
May be any configuration as long as the keyword 300 can be fixed.

[Fourth Embodiment of the Invention] FIG. 7 is a perspective view showing a schematic configuration of a display device according to another embodiment (a fourth embodiment of the present invention) of the present invention.

The display device 40 of the present embodiment is
Except that the fixed base 43 is an installation-type fixed base 43, it is the same as the display device 30 of the third embodiment, and a detailed description thereof will be omitted.

According to the display device 40 of the present embodiment, the portability is slightly impaired as compared with the display device 30 of the above embodiment, but the display device 40 is installed when the display device 40 is not used. It is possible to effectively utilize the space of the installation location.

[Fifth Embodiment of the Invention] FIG. 8 is a perspective view showing a schematic configuration of a display device according to another embodiment (a fifth embodiment of the present invention) of the present invention.

The display device 50 of the present embodiment is
Floppy desk device 51, CD-ROM device 52
Is the same as that of the display device 30 according to the third embodiment except that the display device 30 is incorporated in the liquid crystal display module 32, and a detailed description thereof will be omitted.

According to the display device 50 of the present embodiment, the personal computer (100 shown in FIG. 10) can be installed under a desk or the like. Can be used effectively.

Further, the fixing table 33 is used for the liquid crystal display module 3.
Since it is stored on the lower surface of the second, it is also excellent in portability.

Note that the circuit block shown in FIG. 10 can be built in the liquid crystal display module 32, in which case the portability can be further improved.

As the fixing base 33, an installation-type fixing base 43 can be used as in the display device 40 of the fourth embodiment. In this case, the portability is slightly impaired, but the display device 50
When the device is not used, the space above the desk or the like can be effectively used.

[Sixth Embodiment of the Invention] FIG. 9 is a perspective view showing a schematic configuration of a display device according to another embodiment (sixth embodiment of the invention) of the present invention.
Shows an external view of the use state of the display device 30,
FIG. 9B is an external view of the display device 30 in an unused state.

The display device 60 of the present embodiment is
It is the same as the display device 30 of the third embodiment, except that the support members 66 are extended to the upper surface of the liquid crystal display panel (TFT-LCD) on both left and right sides of the liquid crystal display panel (TFT-LCD). , And a detailed description thereof will be omitted.

According to the display device 60 of the present embodiment, when the keyboard 300 is stored in the liquid crystal display module 32, the keyboard
Are firmly fixed to the liquid crystal display module 32 on both sides, so that a mechanical shock applied to the liquid crystal display panel (TFT-LCD) or a liquid crystal display panel (TFT-LCD) is inadvertently inadvertently applied. ) Can be more firmly protected from dust and the like adhering thereto.

When the keyboard 300 is stored in the liquid crystal display module 32, the side of the keyboard 300
Since there is no step with the side surface of the liquid crystal display module 32, the appearance is also preferable.

As described above, the present invention has been specifically described based on the embodiments of the present invention. However, the present invention is not limited to the embodiments of the present invention, and various changes may be made without departing from the gist of the present invention. It goes without saying that you get it.

[0081]

The effects obtained by typical ones of the inventions disclosed in the present application will be briefly described as follows.

(1) According to the present invention, it is possible to improve the portability and reduce the packing capacity of the display device.

(2) According to the present invention, a multi-display configuration can be easily realized in a display device.

(3) According to the present invention, in the display device, the storage space can be reduced, and the space on the desk or the like can be effectively utilized.

(4) According to the present invention, the display device can be protected from mechanical shock applied to the liquid crystal display panel or dust adhering to the liquid crystal display panel due to external carelessness. Become.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a schematic configuration of a display device according to an embodiment of the present invention.

FIG. 2 is a diagram for explaining a storage state when the display device according to the first embodiment is not used.

FIG. 3 is a perspective view illustrating a schematic configuration of a display device according to another embodiment of the present invention.

FIG. 4 is a perspective view showing a schematic configuration of a display device according to another embodiment of the present invention.

FIG. 5 shows a support member provided on the liquid crystal display module 32 and a lock pin 31 provided on the keyboard 300.
It is a figure showing the correspondence of 0.

FIG. 6 shows a lock pin 31 provided on the keyboard 300.
FIG. 2 is a cross-sectional view illustrating a schematic configuration of a zero.

FIG. 7 is a perspective view illustrating a schematic configuration of a display device according to another embodiment of the present invention.

FIG. 8 is a perspective view showing a schematic configuration of a display device according to another embodiment of the present invention.

FIG. 9 is a perspective view illustrating a schematic configuration of a display device according to another embodiment of the present invention.

FIG. 10 is an external view showing a schematic configuration of an example of a conventional personal computer system using a liquid crystal display device as a display device.

11 is a block diagram illustrating a schematic configuration of a personal computer 100 shown in FIG.

FIG. 12 is a block diagram showing a schematic configuration of the display device 200 shown in FIG.

FIG. 13 is a block diagram showing a schematic configuration of the liquid crystal display module 220 shown in FIG.

FIG. 14 is a perspective view showing an example of the display device 200 shown in FIG.

[Explanation of symbols]

TFT-LCD: Liquid crystal display panel, 10, 20, 30,
40, 50, 60, 200 ... display device, 12,
22, 32, 220, 232: liquid crystal display module, 1
3, 23, 33, 43, 233 ... fixed base, 14, 24,
234: coupling portion, 35: insertion hole, 36, 66: support member, 37: elastic member, 51: floppy desk device,
52: CD-ROM device, 100: personal computer, 101: processor unit, 102: memory unit, 10
3 bus line, 104 DMA controller, 110
.. Hard disk control unit, 111 flexible disk control unit, 112 display control unit, 113 keyboard control unit, 114 mouse control unit, 115 printer control unit, 116 interface control unit, 120 hard disk device, 121 flexible Disk device, 122 ... Display device, 125 ... Printer, 1
26 Modem, 210 Display control circuit, 211 A / D
Conversion means, 212: memory, 213: clock generation / P
LL circuit, 214 clock generation circuit, 215 control circuit, 221 interface section, 222 controller section, 223 power supply section, 224 drain driver section, 2
25: drain driver, 226: gate driver section,
227: gate driver, 300: keyboard, 310
... lock pin, 311 ... convex part, 312 ... coil spring, 3
13: detachable pin, 314: guide hole, 400: mouse.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yasushi Nakano 3300 Hayano, Mobara City, Chiba Pref.Hitachi, Ltd.Electronic Device Division

Claims (5)

[Claims] 1. A display device comprising: a fixed base placed on a desk or the like via an installation surface; and a liquid crystal display device attached to the fixed base. A display device attached to the fixed base so as to be openable and closable with respect to a surface on a side opposite to the display device. 2. The display device according to claim 1, wherein the fixed base includes a second liquid crystal display device on a surface of the fixed base opposite to an installation surface. 3. A display device comprising: a fixed base having an installation surface facing a surface of a desk or the like; and a liquid crystal display device attached to the fixed base, wherein the liquid crystal display device is a storage for storing a keyboard. A display device comprising means. 4. The display device according to claim 3, wherein the liquid crystal display device has a built-in storage device for storing information. 5. The display device according to claim 4, wherein the liquid crystal display device includes an information processing unit, a memory unit, an input / output control unit, and a bus line connecting the respective units.