JPH11160683A - Liquid crystal display device and electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid crystal display device manufactured on an existing production line and made adaptable to the standard of display capacity specified for electronic equipment. SOLUTION: An icon data electrode provided in an icon display part 3b is connected with a gate array 15 dedicated to icon display via a flexible board, and connection to a common electrode facing the icon data electrode is achieved by forming a pattern to be connected with the gate array 15 on a pattern arranged on a signal supply substrate and a driver for scanning signal, or on a flexible board 11 used for connecting the driver for scanning signal with the scanning electrode, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of liquid crystal display devices and electronic equipment, and more particularly to a liquid crystal display device having a pictogram display portion in addition to a normal image display portion, and the liquid crystal display device. Belongs to the technical field of electronic equipment.

[0002]

2. Description of the Related Art Conventionally, in a liquid crystal display device, in addition to a passive driving method, an active matrix driving method using a two-terminal nonlinear element having bidirectional diode characteristics such as a TFT (thin film transistor) driving element or an MIM driving element. Liquid crystal display device.

[0003] In such a liquid crystal display device, the horizontal 6
It has a display area composed of a dot matrix such as 40 × height 200, and this liquid crystal display device is provided in an electronic device so that characters or graphics, or television or video images can be displayed in this display area. Be composed.

However, notebook computers,
Or, in an electronic device such as a mobile phone, in addition to a normal display area, an area for displaying pictograms is provided in order to display a power-on state, an operation mode, or a specific message. Various devices have been devised to provide a display area for the pictogram on the liquid crystal display panel.

For example, pictograms are displayed by software processing using the lower 5 to 10 lines of the display screen, or display electrodes for pictograms are formed by transparent electrodes separately from the electrodes in the display area. A device configured to supply a signal to the display electrode by an LSI has been proposed.

[0006]

However, in the prior art, first, in a configuration in which processing is performed by software,
The area where the original information can be displayed is greatly reduced due to the display area for pictograms, and there is a problem that the display capacity cannot be adapted to the display capacity standard defined for the electronic device.

In a configuration in which a dedicated LSI is provided, the dedicated LSI is mounted on, for example, an upper substrate provided with data electrodes, and connection of the pictograph display electrodes formed on the upper substrate is made. Can be Therefore, in order to connect the common electrode for displaying pictograms formed on the lower substrate on which the scanning electrodes are provided and this dedicated LSI, an upper and lower conductive agent is injected between the upper and lower opposing substrates. Such a liquid crystal display device cannot be manufactured on an existing manufacturing line that does not have a vertical conduction process.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and a liquid crystal display device which can be manufactured on an existing manufacturing line and can conform to a display capacity standard set for electronic equipment. It is an object to provide an electronic device including the liquid crystal display device.

[0009]

According to a first aspect of the present invention, there is provided a liquid crystal display device, comprising: a substrate provided with a plurality of image display data electrodes and pictogram display data electrodes; A plurality of scanning electrodes for image display and the other substrate provided with a common electrode for pictogram display, between a data electrode and a scanning electrode for image display of a pair of substrates, and a data electrode for a pictogram display and a common electrode A liquid crystal is interposed therebetween, a data signal driving unit for supplying a data signal to the image display data electrode, a scanning signal driving unit for supplying a scanning signal to the image display scanning electrode, and the pictogram display data electrode A pictograph signal supply unit for supplying a common signal to the pictograph display common electrode while supplying a data signal to the pictograph display common electrode, and an external signal supply path for each of the driving units. A signal supply substrate, the data signal drive unit, a data signal side connection unit for connecting at least one of the signal supply path and the image display data electrode, the scan signal drive unit, and the signal supply unit. Scanning signal-side connecting means for connecting a path or at least one of the image display scanning electrodes, the pictogram signal supply means, and at least one of the signal supply path or the pictogram display data electrode. And a connecting path between the pictograph signal supply means and the pictograph display common electrode is included in at least the signal supply board and the scanning signal side connection means. According to the liquid crystal display device of the first aspect, a signal from the outside to the data signal driving unit is supplied to the signal supply path of the signal supply substrate. When this signal is,
The signal is transmitted to the data signal driving means directly on the signal supply board or via the data signal side connection means, and a predetermined operation of the data signal driving means is performed. That is, a data signal is supplied to the image display data electrode directly by the data signal driving means on the one substrate or via the data signal side connection means. On the other hand, when a signal from the outside to the scanning signal driving means is supplied to the signal supply path of the signal supply substrate, this signal is directly transmitted on the signal supply substrate.
Alternatively, it is transmitted to the scanning signal driving means via the scanning signal side connection means, and a predetermined operation of the scanning signal driving means is performed. That is, a scanning signal is supplied to the image display scanning electrode directly by the scanning signal driving means on the other substrate or via the scanning signal side connection means. In this manner, the data signal or the scanning signal is supplied to the data electrode and the scanning electrode for image display which are opposed to each other, so that the potential difference between the data electrode and the scanning electrode is controlled, and the electrode is sandwiched between the two electrodes. Since the charged state of the liquid crystal is controlled, a desired image is displayed.

On the other hand, when a signal from the outside to the signal supply means for the pictogram is supplied to the signal supply path of the signal supply board from the outside, the signal is transmitted directly on the signal supply board or to the pictogram display side connection means. Is transmitted to the pictograph signal supply means via the interface, and the predetermined operation of the pictograph signal supply means is performed. That is, the scanning signal is supplied to the data electrode for pictogram display directly on the one substrate by the signal supply means for pictogram or via the connection means for pictogram display side. Further, a common signal is supplied to a common electrode for pictogram display provided on the other substrate, and this common signal is supplied directly to the signal supply board or through a pictogram display side connection means. The signal is supplied to the connection path included in the signal substrate by the signal supply unit, and further supplied to the connection path included in the scanning signal side connection unit, and transmitted to the pictograph display common electrode. As a result, a predetermined signal is supplied to the pictogram display data electrode and the common electrode, and the potential difference between the two electrodes is controlled. As a result, the charge state of the liquid crystal sandwiched between the two electrodes is controlled, and a predetermined pictogram is displayed.

As described above, according to the present invention, since the electrodes for displaying pictograms are provided independently of the normal electrodes for displaying images, pictographs can be displayed while image display is stopped. And lower power consumption. Further, the supply of the signal to the pictogram display electrode is performed not only for the data signal but also for the common signal by the pictogram signal supply means. Since the connection path is included in at least the signal supply substrate and the scanning signal side connection unit, the supply of the signal to the common electrode is ensured without injecting a conductive agent between the one substrate and the other substrate. Done.

According to a second aspect of the present invention, there is provided a liquid crystal display device according to the first aspect, wherein the pictogram display side connection means is formed of a flexible printed board. The picture character signal supply means is mounted on the signal supply board.

According to the liquid crystal display device of the second aspect,
The pictogram signal supply means is mounted on the signal supply board via the flexible printed board as the pictogram display side connection means. Therefore, according to the present invention, it is possible to provide a low power consumption liquid crystal display device that can drive only the pictogram display area.

According to a third aspect of the present invention, there is provided a liquid crystal display device according to the first or second aspect, wherein the data signal side connection means and the scanning signal side connection means are provided. Are formed by a flexible printed circuit board, and the data signal driving means and the scanning signal driving means are provided on the flexible printed circuit board.
It is characterized by being mounted by an AB (Tape Automated Bonding) method.

According to the liquid crystal display device of the third aspect,
The data signal driving means and the scanning signal driving means are provided on a flexible printed circuit board as the data signal side connecting means and the scanning signal side connecting means, by TAB (Tape Automaton).
Since the mounting is performed by a ted bonding method, manufacturing is facilitated. Therefore, according to the present invention, it is possible to provide a low-power-consumption liquid crystal display device capable of driving only the pictogram display area at low cost.

According to a fourth aspect of the present invention, there is provided a liquid crystal display device according to the first or second aspect, wherein the signal supply substrate and the data signal side connection means or The scanning signal side connection means is integrally formed by a flexible printed circuit board,
The data signal driving means and the scanning signal driving means form a TAB (Tape Automated) on the flexible printed circuit board.
Bonding).

According to the liquid crystal display device of the fourth aspect,
The data signal driving means, the scanning signal driving means, and the signal supply board are formed by a flexible printed circuit board, and the data signal driving means and the scanning signal driving means are provided on the flexible printed circuit board by TAB (Tape Automat).
ed Bonding), which not only simplifies manufacturing but also reduces the thickness of the liquid crystal display.
Further, the mounting can be facilitated.

According to a fifth aspect of the invention, there is provided an electronic apparatus comprising the liquid crystal display device according to any one of the first to fourth aspects.

According to a fifth aspect of the present invention, there is provided an electronic apparatus comprising the liquid crystal display device according to any one of the first to fourth aspects. Provide equipment. Furthermore, since the liquid crystal display device does not require the injection of the conductive agent, the liquid crystal display device can be manufactured even on an existing production line that does not have a step of injecting the conductive agent.
The cost of the electronic device can be reduced.

The operation and other advantages of the present invention will become more apparent from the embodiments explained below.

[0021]

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

(Liquid Crystal Display) In FIG. 1, a liquid crystal display 1 is made of an indium tin oxide (ITO) on an insulating and transparent base substrate 2 such as glass or plastic.
e) A data electrode 3 made of a transparent electrode such as a film is formed, and a screen display portion 3a of the data electrode 3 includes one of X1 to X160 extending in the X direction as shown in FIG.
60 data electrodes are juxtaposed in the Y direction. Also,
As shown in FIG. 1, a polarizing plate 4 is formed on a surface of the base substrate 2 opposite to the surface on which the data electrodes 3 are formed.
For example, TN (twisted nematic) mode, ST
N (super TN) mode, D-STN (double-ST
N) Modes are arranged in a predetermined direction according to an operation mode such as a mode or a normally white mode / normally black mode. Note that a polarizing film, a retardation film, or the like may be used instead of the polarizing plate.

On the other hand, at a position facing the data electrode 3, a scanning electrode 6 made of a transparent electrode such as an ITO film is formed on an insulating and transparent base substrate 5 such as glass or plastic. Screen display section 6a of the scanning electrode 6
Has a Y1 extending in the Y direction as shown in FIG.
To 200 scanning electrodes are arranged in parallel in the X direction. Further, as shown in FIG. 1, a polarizing plate 7 is formed on the surface of the base substrate 5 opposite to the surface on which the scanning electrodes 6 are formed. The polarizing plate 7 is also arranged in a predetermined direction according to each of the above-described modes similarly to the polarizing plate 4. The same applies to the point that a polarizing film, a retardation film, or the like may be used instead of the polarizing plate.

The data electrode 3 has a screen display 3a.
Independently of the icon display unit 3b as a pictogram display unit
As shown in FIG. 2, the icon display portion 3b is formed with an icon data electrode made of a transparent electrode such as an ITO film in the same manner as the data electrode in a shape expressing characters and the like. In the present embodiment, twelve icon data electrodes Z1 to Z12 are formed. Further, also in the scanning electrode 6, an icon display section 6b is formed independently of the screen display section 6a, and an icon common electrode facing the icon data electrodes Z1 to Z12 is formed in the icon display section 6b. .

As described above, between the data electrode 3 and the scanning electrode 6 formed in a positional relationship intersecting with each other, the liquid crystal 8 is sealed in a region sealed by a sealing material (not shown). As the liquid crystal 8, a nematic liquid crystal, a chiral nematic liquid crystal, a ferroelectric liquid crystal (chiral smectic liquid crystal), or the like can be used.

On the side of the data electrode 3 and the scanning electrode 6 facing the liquid crystal, there is provided an alignment film made of an organic thin film such as a polyimide thin film and subjected to a predetermined alignment process such as a rubbing process. , Data electrode 3 and scanning electrode 6
A predetermined alignment state is taken by the alignment film in a state where no electric field is applied from the substrate.

As shown in FIG. 1, a signal supply board 9 is provided further below the lower deflecting plate 7. On the signal supply board 9, a power supply circuit, an oscillation circuit,
Also, a control signal bus or the like as a signal supply path connected to an external control circuit is formed. This signal supply board 9
The data electrode 3 and the scanning electrode 6 are electrically connected by a flexible substrate 10 as a data signal side connection unit and a flexible substrate 11 as a scanning signal side connection unit, respectively.

The signal supply substrate 9 is provided at a position facing the deflection plate 7 as shown in FIG. 1. FIG. 3 shows a state where the signal supply substrate 9 is developed so as to be parallel to the data electrodes 3. .

As shown in FIG. 3, the flexible substrates 10 and 11 have an X driver circuit 13 as a data signal driving means for driving a data signal and a Y driver as a scanning signal driving means for driving a scanning signal. Driver circuit 14
Are mounted by TAB (Tape Automated Bonding) method. The TAB method is a method in which a TAB-formed flexible substrate is thermocompression-bonded with an anisotropic conductive film to perform electrical connection. The X driver circuit 1
3 and the Y driver circuit 14 are not limited to this mounting method, and may be a COG (chip-on-glass) directly mounted on the underlying substrates 2 and 5 on which the data electrodes 3 or the scanning electrodes 6 are formed via an anisotropic conductive film. ) May be implemented using a method. Further, the driver circuit 13 and the Y driver circuit 14 may be directly mounted on the signal supply board 9. In the present invention, any mounting method is possible, but when mounted by the TAB method, there is an advantage that manufacturing is further facilitated.

As described above, the X driver circuit 13 is provided on the flexible substrate 10 connected to the data electrode 3, and the Y driver circuit 14 is provided on the flexible substrate 11 connected to the scanning electrode 6. Yes, 160 each
By applying a predetermined voltage to the two data electrodes and 200 scanning electrodes, a potential difference is generated between the two electrodes and the liquid crystal 8 is charged.

As for the icon data electrode 3b, as shown in FIG. 1, a flexible substrate 12 as a pictogram display side connecting means is connected to the data electrode 3.
The segment signal lines SEG1 to SEG12 connected to the icon data electrodes 3b shown in FIG. 2 are connected to the patterns formed on the flexible substrate 12. In addition, this connection method is a method of performing electrical connection by thermocompression bonding using an anisotropic conductive film in the same manner as described above. Further, the gate array 15 as a pictogram signal supply unit for driving the icon display is provided.
It is mounted on the signal supply board 9 and is connected to the pattern formed on the flexible board 12.

On the other hand, regarding the icon scanning electrode 6b,
As shown in FIG. 1, a pattern 16 for the icon scanning electrode 6b is formed on the scanning electrode flexible 11, and is connected to the common signal line COM1 of the icon scanning electrode 6b shown in FIG. And this common signal line C
The OM 1 is connected to a common signal output terminal of the gate array 15 via a pattern on the flexible board 11 and the signal supply board 9.

Next, the circuit configuration of the liquid crystal display device 1 according to the present embodiment as described above will be described with reference to FIG. In the liquid crystal display panel of the present embodiment, in the screen display sections 3a and 6a, a matrix of 160 dots × 200 dots is formed by 160 data electrodes and 200 scanning electrodes, and as shown in FIG. Is provided by the X driver circuit 13, and the scanning electrode is provided by the Y driver circuit 1.
4, a predetermined voltage is applied. The X driver circuit 13 has a function that can independently stop the operation. When the operation is stopped, no image is displayed, so that power can be saved. The function that can stop this operation is controlled by a command, and the distinction between command and data is made by a signal A0. On the other hand, in the normal driving state, the X driver circuit 13
Operates on the basis of a clock signal supplied from an external device, inputs 8-bit data signals D0 to D7 supplied from the outside via a bus formed on the signal supply substrate 9, and applies the data signal to a data electrode. Supply. The X driver circuit 13 controls the level shifter 21 via the bus,
The voltage value supplied to the scan electrodes from the Y driver circuit 14 is controlled. Further, the Y driver circuit 14 sequentially supplies the signal of the voltage value to the scanning electrodes based on the scanning signal controlled by the X driver circuit 13. Thereby, the voltage difference between the data electrode and the scanning electrode is controlled, and the application of the voltage to the liquid crystal sandwiched between both electrodes is controlled. In the present embodiment, any of the driving methods of the static driving and the duty driving is possible.

In this embodiment, the X driver circuit 13 also controls the electronic volume 22.
By outputting a predetermined signal to the power supply unit 23 by the electronic volume 22, the contrast can be controlled.

Next, the gate array 15 controls the icon display sections 3b and 6b. This gate array 1
5 can also be controlled independently from the outside,
The operation is performed based on a clock signal CLK supplied from the outside.

In the present embodiment, the icon display sections 3b, 6
Regarding b, it is possible to employ either the driving method of the static driving or the duty driving, and in any case, first, the electrode of the icon to be displayed is determined by the address signal ADr input from the outside. That is,
According to the address signal ADr, the segment signals SEG1 to SEG12 shown in FIG. 2 are selected, and a predetermined voltage is applied. In addition, a constant voltage value is always applied to the common signal COM1 during operation. Therefore,
A desired icon display electrode can be turned on,
A desired icon can be displayed.

In the present embodiment, the icon display sections 3b, 6 controlled by the gate array 15 as described above
b is configured independently of the image display units 3a and 6a, so that only the icon display units 3b and 6b can be operated in the low power consumption operation mode in which the image display units 3a and 6a are not operated. The power consumption of the display device 1 can be significantly reduced. For example, the image display units 3a and 6a
Drive requires about 1.3 mA, whereas when only the icon display sections 3b and 6b are driven, the current consumption should be reduced to 80 μA for duty drive and 50 μA for static drive. Is possible.

However, the icon display sections 3b, 6b
3 is performed by the gate array 15 mounted on the signal supply substrate 9 as shown in FIG. 3, the common signal line COM1 of the icon scanning electrode provided on the underlying substrate 5 on which the scanning electrode 6 is formed. It is necessary to secure an output path from the gate array 15 for a signal corresponding to.

Conventionally, in order to secure this output path,
A conductive agent is injected between the data electrode 3 and the scan electrode 6 to achieve an electrical connection between the data electrode 3 and the scan electrode 6.

However, a special production line is required to inject the conducting agent between the two electrodes, and a conventional production line which does not originally include a step of injecting the conducting agent requires such a liquid crystal display device. Could not be manufactured.

Therefore, in the present embodiment, as shown in FIGS. 1 and 5, the common signal line 16 from the gate array 15 is formed by patterns formed on the signal supply board 9 and the flexible board 11, respectively. This enables supply of a common signal from the gate array 15 to the common signal line COM1 of the icon scanning electrode 6b without using a conductive agent.

In the present embodiment, since such a configuration is employed, a liquid crystal display device having an icon display independently of an image display section is manufactured in a conventional manufacturing line having no conductive agent injection step. As a result, a liquid crystal display device with extremely low power consumption can be provided.

Further, in the liquid crystal display device of the present embodiment, the liquid crystal 8 is constituted by using a nematic liquid crystal or the like.
The use of polymer-dispersed liquid crystal in which liquid crystals are dispersed as fine particles in a polymer eliminates the need for the above-mentioned alignment film, polarizing film, polarizing plate, etc., and increases the light use efficiency, thereby increasing the brightness of the liquid crystal display panel. And low power consumption.

In the present embodiment, a passive type liquid crystal display device has been described. However, the present invention is not limited to this, and is applied to an active matrix driving type liquid crystal display device using MIM elements or TFT elements. Is also applicable.

In the present embodiment, the case where the signal supply board 9 is constituted by a normal printed board has been described. However, the present invention is not limited to this, and an external control signal bus can be provided on a flexible board. And a driver IC may be mounted on this flexible substrate by a TAB method.

In this embodiment, the case where the dot matrix of the liquid crystal display panel is 160 × 200 is described. However, the present invention is not limited to this. The matrix is 640 × 200, 640 × 200. 400 vertical, 64 horizontal
Various configurations such as 0 × length 480 or 1024 × width 768 are possible.

In this embodiment, the case where the icon display driving means is a gate array has been described. However, the present invention is not limited to this, and an LSI driver can be used.

(Electronic Apparatus) Next, an embodiment of an electronic apparatus including the liquid crystal display device 1 described in detail above will be described with reference to FIGS.

First, FIG. 6 shows a schematic configuration of an electronic apparatus provided with the liquid crystal display device 1.

In FIG. 6, the electronic apparatus is a liquid crystal display device 1 having a drive circuit 1004 including the above-described X driver circuit, Y driver circuit, and gate array, and a liquid crystal display panel 1005 composed of a counter substrate and liquid crystal. In addition, a display information output source 1000, a display information processing circuit 1002, a clock generation circuit 1008, and a power supply circuit 1010 are provided. The display information output source 1000 is a ROM
(Read Only Memory), RAM (Random Access Me)
mory), a memory such as an optical disk device, a tuning circuit, and the like, and outputs display information such as a video signal of a predetermined format to the display information processing circuit 1002 based on a clock from the clock generation circuit 1008. The display information processing circuit 1002 includes well-known various processing circuits such as an amplification / polarity inversion circuit, a phase expansion circuit, a rotation circuit, a gamma correction circuit, and a clamp circuit, and includes display information input based on a clock. , A digital signal DATA is sequentially generated and output to the drive circuit 1004 together with the clock CLK. The driving circuit 1004 drives the liquid crystal display panel 1005 by an X driver circuit, a Y driver circuit, and the like by the above-described driving method. The power supply circuit 1010 supplies a predetermined power to each of the above-described circuits. The liquid crystal display panel 1005
The driving circuit 1004 may be mounted on the base substrate constituting the above, and in addition, the display information processing circuit 1002 may be mounted.

Next, FIG. 7 and FIG. 8 show specific examples of the electronic apparatus configured as described above.

Referring to FIG. 7, a laptop personal computer 1200 as another example of the electronic apparatus has a liquid crystal display panel 1005 having a top cover case 12.
06, and further includes a main body 1204 that houses a CPU, a memory, a modem, and the like, and has a keyboard 1202 incorporated therein.

Such a personal computer 120
In addition, by using the liquid crystal display device of the present invention, the power consumption can be reduced by about 3 to 5 mW. Further, since the gate array for displaying icons is used, the load on the controller board on the main body side is reduced, and the mounting area can be reduced.

As shown in FIG. 8, the driving circuit 1004
A TCP (Tape Ca) in which an IC 1324 including a display and a display information processing circuit 1002 is mounted on a polyimide tape 1322
(rrier Package) 1320 via an anisotropic conductive film provided on the peripheral portion of the base substrate 2 so as to be physically and electrically connected to produce, sell, use, and the like as a liquid crystal display device. is there.

In addition to the electronic devices described above with reference to FIGS. 6 to 8, a liquid crystal television, a viewfinder type or a monitor direct-view type video tape recorder, a car navigation device, an electronic organizer, a calculator, a word processor, and a workstation , A mobile phone, a videophone, a POS terminal, a device having a touch panel, and the like are examples of the electronic device shown in FIG.

As described above, according to the present embodiment, even when a conventional production line having no conductive agent injecting process for the upper and lower substrates is used, the icon display is independent of the normal image display. A liquid crystal display device having a low power consumption can be manufactured, and various electronic devices having a liquid crystal display device with low power consumption can be realized.

[0057]

According to the present invention, a pictograph display electrode is provided independently of an image display electrode, a dedicated driving means for driving the pictograph display is provided, and a common electrode for the pictograph display electrode of the driving means is provided. Is connected to the signal supply substrate and the scanning signal side connection means, so that a conventional production line without a conductive agent injecting process for the upper and lower substrates can be used, and the production cost can be reduced. Can be. In addition, since the display on the image display unit and the display on the pictogram display unit can be executed independently, power consumption can be reduced. Furthermore, the use of dedicated driving means can reduce the burden of designing software and peripheral circuits.

[Brief description of the drawings]

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

FIG. 2 is a plan view showing a configuration of a display electrode in the liquid crystal display device of FIG.

FIG. 3 is an expanded view of a signal supply substrate of the liquid crystal display device of FIG.

FIG. 4 is a block diagram showing a circuit configuration in the liquid crystal display device of FIG.

FIG. 5 is a block diagram for explaining a connection path of a pictograph display electrode to a common electrode in the liquid crystal display device of FIG. 1;

FIG. 6 is a block diagram showing an embodiment of an electronic device according to the present invention.

FIG. 7 is a front view illustrating a personal computer as an example of an electronic apparatus.

FIG. 8 is a perspective view illustrating a liquid crystal display device using TCP as an example of an electronic apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Liquid crystal display device 2, 5 ... Undersubstrate 3 ... Data electrode 3a, 6a ... Image display part 3b, 6b ... Icon display part 4, 7 ... Polarizing plate 6 ... Scanning electrode 8 ... Liquid crystal 9 ... Signal supply board 10, 11 , 12 ... Flexible board 13 ... X driver circuit 14 ... Y driver circuit 15 ... Gate array 16 ... Common electrode connection pattern 1200 ... Personal computer

Claims (5)

[Claims] 1. A substrate provided with a plurality of image display data electrodes and pictogram display data electrodes, and another substrate provided with a plurality of image display scan electrodes and pictogram display common electrodes. A liquid crystal is sandwiched between the data electrode for image display and the scan electrode, and between the data electrode for pictogram display and the common electrode of a pair of substrates, and a data signal drive for supplying a data signal to the image display data electrode. Means, a scanning signal driving means for supplying a scanning signal to the image display scanning electrode, and a pictograph signal for supplying a data signal to the pictograph display data electrode and supplying a common signal to the pictograph display common electrode. Supply means, a signal supply board in which a signal supply path from the outside for each of the drive means is formed, the data signal drive means, the signal supply path or the signal supply A data signal side connection unit for connecting to at least one of the image display data electrodes; a scanning signal driving unit; and a scanning signal for connecting at least one of the signal supply path or the image display scanning electrode. Side connection means, the pictogram signal supply means, and a pictogram display side connection means for connecting at least one of the signal supply path or the pictogram display data electrode, and the pictogram signal supply means The liquid crystal display device, wherein a connection path with the common electrode for pictogram display is included at least in the signal supply substrate and the scanning signal side connection unit. 2. The pictogram display side connection means is formed of a flexible printed circuit board, and the pictogram signal supply means is mounted on the signal supply board. Liquid crystal display device. 3. The data signal side connection means and the scanning signal side connection means are formed by a flexible printed circuit board, and the data signal driving means and the scanning signal driving means are provided on the flexible printed circuit board by TAB ( Ta
The liquid crystal display device according to claim 1, wherein the liquid crystal display device is mounted by a pe automated bonding (pe-automated bonding) method. 4. The signal supply board and the data signal side connection means or the scan signal side connection means are integrally formed by a flexible printed circuit board, and the data signal drive means and the scan signal drive means are connected to each other. TAB (Tape Automated Bondin) on flexible printed circuit board
The liquid crystal display device according to claim 1, wherein the liquid crystal display device is mounted by a method g). 5. An electronic apparatus comprising the liquid crystal display device according to claim 1. Description: