JP2000305476A - Display device and electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light-weight and thin display device with a simple terminal connecting process. SOLUTION: Data signal driver ICs 27, 28 are mounted on a section 23A, protruding to a glass substrate 24, of the glass substrate 23 and a flexible control circuit board 22 mounted with electronic parts is mounted on these driver ICs. A signal output terminal part 22A of the control circuit board 22 is connected to the end of an input wiring 29 connected to the data signal driver ICs 27, 28. And a scanning output terminal 22B of the control circuit board 22 is connected to the end of input wiring 32 connected to the scanning driver IC 31 mounted on the protruded section 24A of the glass substrate 24. With this constitution since the control circuit substrate 22 is arranged at a step of both of the glass substrate 23, 24, a liquid crystal display device 20 can be thinned.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat panel display device such as a liquid crystal display device. Also,
The present invention relates to an electronic device including a display device.

[0002]

2. Description of the Related Art In recent years, display devices have been widely used as information display terminals for portable devices, homes, offices / factories, automobiles, and the like. In particular, liquid crystal display devices have features such as thinness, light weight, low voltage, and low power consumption, and are currently the mainstay of electronic displays including the future. Applications to portable information terminals) are becoming more and more active.

As shown in FIG. 7, as a conventional liquid crystal display device, for example, a passive matrix driving method or
Thin film diode (TFD: Thin) as a switching element
There is an active matrix type liquid crystal display device 1 using a two-terminal type nonlinear element such as a film diode. The liquid crystal display device 1 is generally constituted by a liquid crystal display panel 2 and a printed circuit board 3 on which various electronic components are mounted. The liquid crystal display panel 2 and the printed board 3 are electrically connected via two flexible printed wiring boards 4 and 5.

[0004] The liquid crystal display panel 2 has a pair of glass substrates 6 and 7 arranged opposite to each other. Liquid crystal is sealed between the glass substrates 6 and 7. A plurality of signal electrodes 8 are formed on the opposite inner side surface of the glass substrate 6 so as to be parallel. On the other hand, a plurality of scanning electrodes 9 are formed on a facing inner side surface of the glass substrate 7 along a direction orthogonal to the signal electrodes 8 described above.

At a predetermined side edge of the liquid crystal display panel 2 (a lower edge in FIG. 7), the edge of the glass substrate 6 projects laterally (downward in the figure) from the edge of the glass substrate 7. Is set to Further, at a side edge (left side edge in the figure) adjacent to the above-mentioned side edge of the liquid crystal display panel 2, the edge of the other glass substrate 7 is located laterally from the edge of the one glass substrate 6. It is set to protrude. The data signal driver ICs 10 and 11 are provided with COG (Ch) in the protruding region 6A on the inner side surface facing the glass substrate 6.
ip On Glass) has been implemented. These data signal driver ICs 10 and 11 are connected to the plurality of signal electrodes 8 described above.
Are connected to the extended output terminal portion 8A and the input terminal portion 12 arranged and formed on the edge side of the protruding region 6A. Further, a scanning driver IC 13 is mounted on the protruding region 7A on the inner side surface facing the glass substrate 7 by COG. The scanning driver IC 13 includes an output terminal portion 9 </ b> A having the plurality of scanning electrodes 9 extending therefrom and a protruding region 7.
A is connected to an input terminal portion 14 arranged and formed on the edge side of A.

The output terminal portion 4A of the flexible printed wiring board 4 is electrically connected to a plurality of input terminal portions 12 arranged and formed along the long side of the protruding region 6A of the glass substrate 6. It is joined to connect to. Similarly, the output-side terminal portion 5A of another flexible printed wiring board 5 described above is
It is joined so as to be electrically connected to a plurality of input terminal portions 14 arranged and formed along the long side of A.
The input terminal 4B of the flexible printed wiring board 4
It is joined to an output terminal 15 formed on a printed circuit board 3 as a control circuit board. The input terminal 5B of the flexible printed wiring board 5 is
Is connected to the output terminal portion 16 formed at the bottom. In addition,
On the printed circuit board 3, predetermined wirings are formed, and various electronic components for controlling and driving the liquid crystal display panel 2 are mounted.

As an electronic apparatus using the liquid crystal display device having the above-mentioned configuration, there is an electronic apparatus having an input unit such as a keyboard and a numeric keypad and displaying data on a liquid crystal display panel in accordance with an input operation to the input unit. . In such an electronic device, a liquid crystal display panel and a printed circuit board are incorporated in a chassis (panel storage frame). At this time,
Two flexible printed wiring boards are bent so that the printed circuit board is arranged on the rear side of the liquid crystal display panel.

[0008]

However, in the above-described liquid crystal display device, the printed circuit board 3 as a control circuit board is disposed on the back side of the liquid crystal panel 2 as shown in FIG. And the thickness of the display unit of the electronic device are increased. For this reason, when the weight and thickness of the liquid crystal display device and the electronic device are reduced, the presence of the printed circuit board 3 hinders the reduction. 2. Description of the Related Art In portable information devices such as a mobile phone and a pocket-sized personal computer that emphasizes portability, particularly, the thickness dimension of a housing is required to the limit. In addition, the problem of the thickness due to such a control circuit board is not limited to the liquid crystal display device of the passive matrix driving method or the active matrix driving method using the two-terminal non-linear element described above. : Thin Film Transistor) for each pixel, the same applies to various display devices such as an active matrix driving type liquid crystal display device and an electroluminescence (EL) display device. Thus, from the viewpoints of portability and mobility, not only liquid crystal display devices but also various display devices are required to be reduced in size and weight, and accordingly, electronic components used for driving the display devices are limited in size. The challenge is how to achieve high-density packaging in terms of weight.

Further, as shown in FIG. 7, in the liquid crystal display device 1 having the above configuration, the data signal driver IC 1
Flexible printed wiring board 4 to be bonded to protruding area 6A of glass substrate 6 on which 0 and 11 are mounted, and protruding area 7A of glass substrate 7 on which scanning driver IC 13 is mounted
And the flexible printed wiring board 5 to be bonded to the printed circuit board 3 must be independently bonded to each other. For this reason, there is a problem that the module process becomes complicated and lacks convenience. Further, since the respective flexible printed wiring boards 4 and 5 are separately bonded to the printed circuit board 3, the output terminal section 1 arranged and formed on the printed circuit board 3
It is not preferable that the points 5 and 16 are too close to each other. That is, when the flexible printed wiring boards 4 and 5 are joined to the printed circuit board 3 using the mounting machine, it is necessary to secure a distance such that the flexible printed wiring boards do not interfere with each other. In such a configuration, a plurality (2
The use of the flexible printed wiring board of (1) has been a factor preventing the printed circuit board 3 from being downsized.

Further, it is necessary to separately connect input wiring means 15 for inputting a control signal to the printed circuit board 3. Therefore, the terminal connection process is complicated.

An object of the present invention is to determine what means should be taken to obtain a display device and an electronic device which are lightweight and thin and whose terminal connection process is simple.

[0012]

According to the present invention, there is provided a display panel in which an electro-optic material layer is sandwiched between a pair of substrates facing each other, and at least one side edge of the display panel has a peripheral edge of one of the substrates. A display device having a protruding portion protruding laterally from a peripheral edge of the display device, and a driver IC mounted on the protruding portion, wherein a control circuit board is mounted on the driver IC so that the control circuit board is substantially fitted in the protruding region. The control circuit board is connected to an input terminal of the driver IC.

[0013] In the present invention having such a configuration, the protruding portion in which the peripheral edge of one substrate protrudes laterally from the peripheral edge of the other substrate,
That is, the driver IC is mounted on the step formed by the other substrate and the one substrate, and the control circuit board is mounted on the driver IC. Therefore, the control circuit board is arranged so as to fit in the above-described step. It becomes possible. As a result, according to the present invention, there is no need to separately connect a control circuit board to the display panel via a flexible printed wiring board or the like, and the display device can be made thinner and lighter.

Further, according to the present invention, a first substrate and a second substrate are arranged so as to face each other, a scanning electrode is formed on a surface of the first substrate facing the second substrate, and a first electrode on the second substrate is provided.
A signal electrode is formed on a surface facing the substrate, and the first substrate is provided with a second substrate on one of two adjacent side edges of a display panel in which both substrates sandwich an electro-optic material layer. A second protruding portion having a first protruding portion protruding laterally from a peripheral edge of the substrate, and a second substrate protruding from the peripheral edge of the first substrate on the other side edge portion;
A scan driver IC connected to the scan electrode is mounted on the first protrusion, and the second protrusion has
A display device on which a data signal driver IC connected to a signal electrode is mounted, wherein a control circuit board is provided on the driver IC mounted on a first protrusion or a second protrusion.
It is mounted so as to fit within the plane area of the protrusion, and the input terminal of the driver IC mounted on the protrusion is connected to the output terminal of the control circuit board.

In the present invention having such a configuration, the control circuit board is mounted on the driver IC mounted on the first protrusion or the second protrusion, so that the control circuit board is separately mounted on the display panel. The connection can be made without any intervention.

Therefore, the weight of the display device can be reduced. Further, according to the present invention, particularly, by arranging the driver IC and the control circuit board so as to be accommodated in the step of the first projecting portion or the second projecting portion, the display device can be made thinner. Further, according to the present invention having the above-described configuration, the scanning driver I can be controlled by one control circuit board.
A drive control signal can be output to both C and the data signal driver IC, and the terminal connection process can be simplified.

Further, according to the present invention, the input terminal of the driver IC on which the control circuit board is mounted is connected to one end of the input wiring formed on the surface of the protrusion on which the driver IC is mounted, and It is preferable that the other end is arranged so as to be routed to the vicinity of the short side of the protrusion and connected to the control circuit board. According to the present invention having such a configuration, since the control circuit board is connected to the input wiring near the short side of the protruding portion, the control circuit board is easily bent, and the driver IC is connected to the input wiring in a state where the control IC is connected to the input wiring. This has the effect that it can be easily mounted on top.

Also, According to the present invention, it is preferable that the control circuit board has a circuit wiring formed on a flexible insulating resin substrate and an electronic component used for drive control of the display panel mounted thereon. The present invention having such a configuration has an effect that it is easy to bend the control circuit board in a state where the control circuit board is connected to the input wiring formed on the protruding portion.

Further, according to the present invention, the control circuit board is extended so as to be connected to one end of an input wiring formed near a short side of the protrusion adjacent to the protrusion on which the control circuit board is mounted. Is preferred. According to the present invention having such a configuration, the control circuit board can be directly joined to the vicinity of the short side of the adjacent protruding portion without separately joining the flexible printed wiring board to the connection circuit board. For this reason, according to the present invention, there is an effect that the convenience of terminal joining can be improved.

According to the present invention, the control circuit board may have a multilayer structure in which an insulating layer is interposed between a plurality of wiring layers and predetermined upper and lower wiring layers are connected by through holes or via holes. preferable. In the present invention having such a configuration, by connecting a plurality of wiring layers via through holes or via holes, there is an effect that the degree of integration of wiring and the mounting density can be improved.

Further, according to the present invention, it is preferable that the control circuit board includes a flexible input wiring portion. According to the present invention having such a configuration, it is easy to connect the control circuit board to the input section that generates the control signal via the input wiring section, and there is an effect that the convenience of wiring connection can be improved. .

In the present invention, the electro-optical material layer is preferably a liquid crystal layer. According to such a configuration, the liquid crystal display device used for a portable information terminal or the like can be reduced in thickness, and the convenience of terminal connection can be improved, so that a liquid crystal display device with an easy module process can be realized.

In the present invention, the electro-optic material layer is preferably an EL light-emitting layer containing an electroluminescent material. According to the present invention having such a configuration, the thickness of the EL display device can be reduced, and the control circuit board can be highly integrated to reduce the weight.

An electronic apparatus according to the present invention includes the above-described display device and an input unit for inputting a signal to the display device, and the display device is housed in a housing.

According to the present invention having such a configuration, it is possible to reduce the thickness of the display section of the electronic device, and thereby achieve the effect of reducing the thickness of the entire electronic device. According to the present invention,
Since the display panel is integrated with the control circuit board,
This has the effect of improving assembly convenience.

Further, in the present invention, it is preferable that the control circuit board of the display device in the electronic apparatus described above includes a flexible input wiring portion for connecting to the input portion.
According to the present invention having such a configuration, since the control circuit board is provided with the input wiring section connected to the input section side, there is no need for a separate step of joining the input wiring, thereby improving the convenience of assembly. be able to.

[0027]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, details of a display device and an electronic apparatus according to the present invention will be described based on embodiments shown in the drawings. 1 to 6 illustrate the present invention using a thin film diode (TF).
1 shows an embodiment in which the present invention is applied to an active matrix driving type liquid crystal display device using a two-terminal type non-linear element such as D: Thin Film Diode as a switching element.

FIG. 1 is a block diagram showing a schematic configuration of a main part of a liquid crystal display device according to this embodiment.

As shown in FIG. 1, in the liquid crystal display panel 21, i data lines X1 to Xi and j + 1 scanning lines Y1 are provided.
A pixel region P is formed at each intersection of Y.about.Yj, and each pixel region P has a configuration in which a liquid crystal layer 18 and a TFD element 19 are connected in series. One of the scanning lines Y1 to Yj in the drawing is the same as the scanning line 26 in FIG.

Each of the scanning lines Y1 to Yj is driven by a scanning signal driving circuit 300, and each of the data lines X1 to Xi is driven by a data signal driving circuit 200. Further, the scan signal drive circuit 300 and the data signal drive circuit 200 are controlled by the drive control circuit 120.

In FIG. 1, the TFD element 19 is connected to the scanning line side and the liquid crystal layer 18 is connected to the data line side. Conversely, the TFD element 19 is connected to the data line side. Alternatively, the liquid crystal layer 18 may be provided on the scanning line side.

The drive control circuit 120 outputs various kinds of control synchronizing signals for controlling the data signal and the voltage value and the supply timing of the scan signal to the scan signal drive circuit, and outputs the control signal to the data signal drive circuit. Thus, a data signal of a predetermined format corresponding to the display data is supplied from the synchronization signal and the image signal.

Further, the power supply circuit 130 supplies various control potentials such as predetermined high potential, low potential, and reference potential to each drive circuit.

In the embodiment of the present invention, a control circuit board on which the drive control circuit 120 and the power supply circuit 130 are mounted is mounted on a driver IC mounted on a liquid crystal display panel.

Hereinafter, the specific structure of each part of the liquid crystal display device of the present embodiment will be described in order.

As shown in FIG. 2, the liquid crystal display device 20 of this embodiment includes a liquid crystal display panel 21 and a control circuit board 22 mounted on the liquid crystal display panel 21.

First, the configuration of the liquid crystal display panel 20 will be described. This liquid crystal display panel 20 is shown in FIGS.
As shown in FIG. 1, the glass substrate has a pair of glass substrates 23 and 24 arranged opposite to each other. A sealing material (not shown) is interposed between the two glass substrates 23 and 24 so as to go around the display area, and a liquid crystal ( (Not shown) is sealed.

As shown in FIG. 2, a plurality of data signal electrodes 25 are formed in parallel on the inner side surface of the glass substrate 23 (the surface facing the glass substrate 24). The signal electrode 25 is formed of, for example, indium tin oxide (ITO) that transmits light. These signal electrodes 25 are arranged at a predetermined interval from each other along a predetermined direction (vertical direction, X direction in FIG. 2).

On the other hand, the above-described signal electrode 25 is provided on the inner side surface facing the glass substrate 24 (the surface facing the glass substrate 23).
A plurality of scanning electrodes 26 are formed along a direction (horizontal direction, Y direction in FIG. 2) perpendicular to the scanning direction. The scanning electrode 26 is formed of a conductive material that reflects display light. These scanning electrodes 26 are similarly arranged so as to be parallel with a predetermined interval. That is, between the plurality of data signal electrodes 25 formed on the glass substrate 23 and the plurality of scanning electrodes 26 formed on the glass substrate 24, the TFD element 19, the pixel electrode, and the liquid crystal layer 18 shown in FIG. The pixels are connected in series to form a so-called XY matrix pixel.

As shown in FIG. 2, at a predetermined side edge of the liquid crystal display panel 21 (a lower edge in the figure), the periphery of the glass substrate 23 is located laterally of the periphery of the glass substrate 24 (in the figure,
Downward). Further, a side edge portion of the liquid crystal display panel 21 adjacent to the above-described side edge portion (FIG. 2)
On the other hand, the left edge of the glass substrate 24 is set so that the peripheral edge of the glass substrate 24 projects laterally (left side in the figure) from the peripheral edge of the glass substrate 23.

The above-mentioned protruding region 23A on the inner surface facing the glass substrate 23 is provided with a data signal driver IC.
27 and 28 are mounted on a COG (chip on glass). The data signal driver ICs 27, 2
8 is connected to the output terminal portion 25A shown in FIG. 2 where the plurality of signal electrodes 25 extend, and to one end (input terminal portion) 29A of the plurality of input wirings 29 shown in FIGS. ing. The data signal driver ICs 27 and 28 are connected to the output terminal 25A and one end 29A of the input wiring 29.
Are flip-chip mounted face down. FIG. 4 is a cross-sectional view taken along the line AA of FIG. 2, and a bump 28A projecting from the lower surface of the data signal driver IC 28 is provided on one end 29A of the input wiring 29 at an anisotropic conductive film (ACF). Film)
30 shows a state of being connected / joined via 30.

As shown in FIGS. 2 and 3, the input wiring 29 is routed to the other end (output terminal).
29B is disposed near the short side of one of the protruding regions 23A (the side opposite to the protruding region 24A in the present embodiment). As shown in FIG. 4, the other end 29B of the input wiring 29 is connected to the signal output terminal 2 of the control circuit board 22.
2A is connected via ACF33. The control circuit board 22 includes the data signal driver ICs 27, 2
8 is mounted via an insulating substrate 34.

On the other hand, as shown in FIG. 2, a scanning driver IC 31 is mounted on the protruding region 24A on the inner side surface of the glass substrate 24 by COG. Similarly to the above-described data signal driver ICs 27 and 28, the scanning driver IC 31 includes an output terminal 26A in which the plurality of scanning electrodes 26 extend, and one end (input terminal) 32A of the input wiring 32. In contrast, flip-chip mounting by face-down is implemented. In the present embodiment, these input wirings 32 are the glass substrates 23 of the glass substrate 24.
And extends to the vicinity of the short side closer to the protruding region 23A. The other end (output terminal portion) 32B of the input wiring 32 extending to near the short side is connected to the control circuit board 22 described above.

The data signal driver ICs 27, 2
8 and the number of terminals on the input side (the number of input wirings 29 and 32) of the scanning driver IC 31 are significantly smaller than the number of terminals on the output side (the number of signal electrodes 25 and scanning electrodes 26). For this reason, in the present embodiment, even if the terminals are arranged and formed along the short sides of the protruding region 23A and the protruding region 24A, the problem that the terminal arrangement area is reduced does not occur.

Next, the control circuit board 22 will be described. The control circuit board 22 is a circuit board on which electronic components constituting the drive control circuit 120 and the power supply circuit 130 shown in FIG. 1 are mounted, and has flexibility as a whole. As shown in FIG. 2, the control circuit board 22 is disposed so as to be substantially contained within the protruding region 23 </ b> A of the glass substrate 23 when viewed in a plan view. At the end of the control circuit board 22 opposite to the signal output terminal 22A, a scanning output terminal 22B is formed integrally with a short side of the protruding region 24A of the glass substrate 24. ing. The scanning output terminal 22B is connected to the other end 32B of the input wiring 32 via an ACF (not shown). Further, the control circuit board 22 includes the control circuit board 22.
Signal input wiring 22 for inputting a control signal to
C is formed integrally.

The control circuit board 22 is, as shown in FIG.
Wirings 36 and 37 having a predetermined pattern are formed on the front and back surfaces of a base sheet 35 made of a flexible insulating resin. Further, these wirings 36 and 37 are appropriately connected via a through hole (or a via hole) 38 to form a control circuit. Further, the wirings 36 and 37 formed on the front and back surfaces of the base sheet 35 are
It is coated with 9, 40. Then, the wiring 3 at a predetermined position
An opening 39A is formed in the insulating coating film 39 so that 6 is exposed. Various electronic components are connected to the wiring 36 as a pad exposed through the opening 39A. FIG. 4 shows a state in which the power IC 41 as an electronic component constituting the power supply circuit 130 is connected face-down to the bump 41A and the wiring 36 via the ACF 42.

The signal output terminal 22A, the scanning output terminal 22B, and the control signal input wiring 22C of the control circuit board 22 are provided on the base sheet 3 described above.
5 is extended, and a wiring pattern is similarly formed appropriately.

The control circuit board 22 having such a configuration is provided on the data signal driver ICs 27 and 28 on the insulating board 34.
The driver IC 2
7, 28 may be fixed. The insulating substrate 34
Are arranged to prevent the control circuit board 22 from bending when the control circuit board 22 is mounted. However, when the control circuit board 22 has a predetermined rigidity, the insulating substrate 34 may be omitted.

The liquid crystal display device 20 of the present embodiment described above
Uses a step between the glass substrate 23 and the glass substrate 24. In particular, the data signal driver IC 27,
The height dimension including the driver IC, the control circuit board 22, and the insulating board 34 so that the top of the control circuit board 22 does not protrude from the surface of the glass substrate 24 with the control circuit board 22 mounted on 28. Is preferably smaller than the thickness of the glass substrate 24. However, even if the uppermost part of the control circuit board 22 is configured to protrude from the surface of the glass substrate 24, the liquid crystal display device 20 can be more easily compared to a case where a control circuit board having electronic components mounted on a printed board is separately prepared. The advantage is that the thickness dimension can be significantly reduced.

FIG. 5 shows a liquid crystal display device 2 having such a configuration.
FIG. 5 is a cross-sectional view showing a state in which 0 is stored in a housing (chassis) 51. In the present embodiment, the protruding region 2 of the glass substrate 23
Driver IC for data signal on 3A (on the opposite inner side surface)
By mounting the control circuit board 22 on the 27 and 28, the liquid crystal display device 20 can be made thinner, and the housing 51 can also be made thinner.

Next, the configuration of a notebook personal computer 50 as an electronic apparatus using the liquid crystal display device 20 of the present embodiment as a display unit will be described with reference to FIG. As shown in the figure, the liquid crystal display panel 21 is housed in a housing 51 and is configured to be exposed from a display area of the liquid crystal display panel 21 through an opening 51A formed in the housing 51. Further, a keyboard 52 is provided as an input unit. In the display section of the personal computer 50, the housing 51 can be made thinner for the reasons described above. Therefore, the personal computer 50 can be made thinner,
Lightening can be achieved. Although not shown in FIG. 6, since the control signal input wiring 22C is formed integrally with the control circuit board 22, the control signal input wiring (keyboard 52) can be provided without using a separate wiring means such as a flexible printed circuit board. The convenience of joining can be improved.
As described above, in the present embodiment, various types of electronic devices such as a personal computer, for example, a pager, a liquid crystal television, a viewfinder, a car navigation device, an electronic organizer, a calculator, a word processor, a mobile phone, a videophone, etc. It can contribute to the conversion.

Although the embodiments have been described above, the display device and the electronic apparatus according to the present invention are not limited to the above-described configurations, and various changes accompanying the gist of the configurations are possible. For example, in the above-described embodiment, the present invention is applied to a liquid crystal display device of an active matrix driving system having a TFD (Thin Film Diode) element for each pixel electrode as a display device, but a thin film transistor (TFT) is used. A) A liquid crystal display device using an active matrix driving method using elements or a passive matrix driving method may be used. These liquid crystal display devices are not limited to transmissive liquid crystal display devices, but may be reflective liquid crystal display devices. In addition, an EL display device can be used as the display device. This EL
The display device uses an electroluminescent material including a fluorescent material as the electro-optical material, and the configuration of the scanning electrodes, signal electrodes, and the like can be substantially the same as that of the liquid crystal display device.

In the above-described embodiment, the control circuit board 22 is arranged in the projecting area 23A of the glass substrate 23. However, the control circuit board 22 may be arranged in the projecting area 24A of the glass substrate 24. A control circuit board which shares the function may be arranged in 24A. Further, the control circuit board 22 may be configured such that only the vicinity of each connection terminal portion for performing terminal connection has flexibility. Further, the wiring structure formed on the control circuit board 22 may have a multilayer structure as in the above-described embodiment, or may have a single-layer structure.

Further, in the above-described embodiment, a glass substrate is used as the panel substrate. However, the present invention is not limited to glass, and a substrate made of a material such as a synthetic resin can be used.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a main configuration of a liquid crystal display device according to an embodiment of the present invention.

FIG. 2 is a plan view of a liquid crystal display device which is an embodiment of the display device according to the present invention.

FIG. 3 is a perspective view of the liquid crystal display device of the embodiment.

FIG. 4 is a sectional view taken along line AA of FIG. 1;

FIG. 5 is an exemplary sectional view showing a state where the liquid crystal display device of the embodiment is housed in a housing;

FIG. 6 is an exemplary perspective view showing an embodiment of an electronic apparatus according to the invention.

FIG. 7 is a plan view of a conventional liquid crystal display device.

FIG. 8 is a cross-sectional view of a conventional liquid crystal display device.

[Explanation of symbols]

 Reference Signs List 20 liquid crystal display device 21 liquid crystal display panel 22 control circuit board 23, 24 glass substrate 23A, 24A projecting area 25 signal electrode 26 scanning electrode 27, 28 data signal driver IC 29 input wiring 31 scanning driver IC 32 input wiring 34 Insulating substrate 35 Base sheet 36, 37 Wiring 38 Through hole 39, 40 Insulating coating film 41 Power IC (electronic component) 50 Personal computer 51 Housing 51A Opening 52 Keyboard (input unit)

Claims (11)

[Claims] At least one side edge of a display panel in which an electro-optical material layer is sandwiched between a pair of substrates facing each other, a peripheral edge of one of the substrates is lateral to a peripheral edge of the other substrate. A display device having a protruding portion, and a driver IC mounted on the protruding portion, wherein a control circuit board is mounted on the driver IC so as to substantially fit in a region of the protruding portion, The display device, wherein the control circuit board is connected to an input terminal of the driver IC. 2. A first substrate and a second substrate are disposed so as to face each other, a scan electrode is formed on a surface of the first substrate facing the second substrate, and the first substrate on the second substrate is provided. A data signal electrode is formed on the surface facing the substrate, and the first substrate is provided on one of the adjacent side edges of the display panel in which the two substrates sandwich the electro-optic material layer. A first substrate in which the substrate projects laterally from a periphery of the second substrate;
A second projecting portion having a projecting portion, and the second substrate projecting from a peripheral edge of the first substrate at the other side edge portion, and being connected to the scanning electrode at the first projecting portion. A scanning driver IC mounted thereon, and the second protrusion has a data signal driver I connected to the data signal electrode.
C. The display device having C mounted thereon, wherein the protruding portion is provided on at least one of the scanning driver IC and the data signal driver IC mounted on the first protruding portion or the second protruding portion. The control circuit board is mounted so as to fit within the plane area of the above, and the input terminals of the scanning driver IC and the data signal driver IC mounted on the first projecting portion and the second projecting portion are controlled by the control circuit board. A display device connected to an output terminal of a circuit board. 3. An input terminal of the driver IC on which the control circuit board is mounted is connected to one end of an input wiring formed on a surface of the protrusion on which the driver IC is mounted. 2. The display device according to claim 1, wherein the other end of the wiring is routed to a position near a short side of the protrusion, and is connected to the control circuit board. 3. 4. The control circuit board according to claim 1, wherein circuit wiring is formed on a flexible insulating resin substrate, and electronic components used for drive control of the display panel are mounted. The display device according to any one of claims 1 to 3, wherein 5. The control circuit board is connected to one end of an input wiring formed near a short side of the protrusion adjacent to the protrusion on which the control circuit board is mounted. The display device according to claim 2, wherein the display device is extended. 6. The control circuit board has a multilayer structure in which an insulating layer is interposed between a plurality of wiring layers and predetermined upper and lower wiring layers are connected by through holes or via holes. The display device according to any one of claims 1 to 5. 7. The display device according to claim 4, wherein the control circuit board includes a flexible input wiring unit. 8. The display device according to claim 1, wherein the electro-optical material layer is a liquid crystal layer. 9. The display device according to claim 1, wherein the electro-optical material layer is an EL light emitting layer containing an electroluminescent material. 10. The display device according to claim 1, further comprising: an input unit configured to input a signal to the display device, wherein the display device is housed in a housing. Electronic equipment. 11. The electronic apparatus according to claim 10, wherein the control circuit board of the display device includes a flexible input wiring unit for connecting to the input unit.