JP2013011788A - Electro-optic device and electronic device - Google Patents

Abstract

An electro-optical device and an electronic apparatus that can be appropriately driven according to the model (characteristic) of an electro-optical panel are provided.
A first FPC connection terminal portion 45 and a second FPC connection terminal portion 46 having a terminal arrangement different from that of the first FPC connection terminal portion 45 are arranged in this order from the side close to the first side of the flexible wiring board 200, and the liquid crystal The panel connection terminal portion 41 of the panel 100 is electrically connected to the first FPC connection terminal portion 45 or the second FPC connection terminal portion 46 according to the model of the liquid crystal panel 100.
[Selection] Figure 10

Description

  The present invention relates to an electro-optical device having model information and an electronic apparatus.

  As one of the electro-optical devices, for example, there is a TFT (Thin Film Transistor) active matrix driving type liquid crystal device used as a light valve of a liquid crystal projector. In the liquid crystal device, the type of liquid crystal material used and the conditions of alignment treatment (for example, the type of alignment film and the direction of alignment treatment) differ depending on the type of liquid crystal panel (panel module). For this reason, it is necessary to give an appropriate drive signal, for example, according to the model of the liquid crystal device.

  Therefore, for example, as described in Patent Document 1, there is a method for determining the type of liquid crystal panel in the inspection process by changing the presence or absence of electrical connection between terminals provided on a flexible printed circuit board (FPC). It is disclosed.

JP 2007-72244 A

  However, it is not easy to drive the liquid crystal device appropriately (for example, drive adjustment or offset correction) according to the characteristics of each liquid crystal panel, in other words, there is a problem that the flow becomes complicated.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 An electro-optical panel according to this application example includes an electro-optical panel provided with a panel connection terminal portion having a plurality of panel connection terminals including a first panel connection terminal and a second panel connection terminal, A first circuit board terminal portion having a plurality of circuit board terminals including one circuit board terminal and a second circuit board terminal having a plurality of circuit board terminals including a second circuit board terminal and having a terminal arrangement different from that of the first circuit board terminal portion. A circuit board provided with a circuit board terminal part, wherein the first circuit board terminal part is disposed along a first side of the circuit board, and the second circuit board terminal part is provided on the circuit board. When the electro-optical panel and the circuit board are connected to each other, the first panel connection terminal is disposed between the second side facing the first side and the first circuit board terminal portion. And the first circuit board terminal is connected, It is characterized in that said second panel connector and said second circuit board terminal is connected.

  According to this configuration, since the first circuit board terminal portion or the second circuit board terminal portion of the circuit board is selected and electrically connected to the panel connection terminal portion of the electro-optical panel, the first terminal having a different terminal arrangement is used. By connecting to the circuit board terminal part or the second circuit board terminal part, it becomes possible to easily discriminate the model of the electro-optical panel, and the electro-optical device can be appropriately driven according to the characteristics of each electro-optical panel. it can.

  Application Example 2 In the electro-optical device according to the application example, the first panel connection terminal and the second panel connection terminal are panel connection terminals connected to a low potential power source among the plurality of panel connection terminals. Preferably, the first circuit board terminal and the second circuit board terminal are electrically connected to a circuit board terminal connected to a high potential power source among the plurality of circuit board terminals. .

  According to this configuration, since the panel connection terminal connected to the low potential power supply and the circuit board terminal connected to the high potential power supply are selectively connected, the signal of the wiring connected to each terminal is “Hi”. "Or" Low ". As a result, the model of the electro-optical panel can be easily determined based on the connection state between the panel connection terminal and the circuit board terminal.

  Application Example 3 In the electro-optical device according to the application example, the circuit board includes a plurality of external connection terminals that are separated from the first circuit board terminal portion by a first distance on the second side. An external connection terminal portion is provided, and a second external connection terminal portion having a plurality of external connection terminals spaced apart from the second circuit board terminal portion and the second side by the first distance is provided. It is preferable.

  According to this configuration, the first external connection terminal portion is provided away from the first circuit board terminal portion by a first distance, and the first circuit board terminal portion is similarly spaced apart from the first circuit board terminal portion by the first distance. 2 Since the external connection terminal portion is provided, the area of the second external connection terminal portion is cut when the first circuit board terminal portion is selected, and the first circuit board is selected when the second circuit board terminal portion is selected. By cutting the region of the terminal portion, the lengths of the circuit boards can be made the same. Therefore, the length of the circuit board can be unified regardless of which of the first circuit board terminal part and the second circuit board terminal part is selected.

  Application Example 4 An electro-optical device according to this application example includes a first panel connection terminal portion having a plurality of panel connection terminals including a first panel connection terminal, and a plurality of panel connection terminals including a second panel connection terminal. A plurality of circuit board terminals including an electro-optical panel provided with a second panel connection terminal part having a terminal arrangement different from that of the first panel connection terminal part, and a first circuit board terminal and a second circuit board terminal; A circuit board provided with a circuit board terminal part, wherein the first panel connection terminal part is disposed along a first side of the electro-optical panel, and the second panel connection terminal part is provided with the electrical panel. The first panel is disposed between a second side opposite to the first side of the optical panel and the first panel connection terminal portion, and when the electro-optical panel and the circuit board are connected. Connection terminal and first circuit board Or not the terminal is connected, or the second panel connector and said second circuit board terminal characterized in that it is connected.

  According to this configuration, the first panel connection terminal portion or the second panel connection terminal portion of the electro-optical panel is selected and electrically connected to the circuit board terminal portion of the circuit board. By connecting to the panel connection terminal portion or the second panel connection terminal portion, it becomes possible to easily determine the model of the electro-optical panel, and to drive the electro-optical device appropriately according to the characteristics of each electro-optical panel. it can.

  Application Example 5 In the electro-optical device according to the application example, the first panel connection terminal and the second panel connection terminal are panel connection terminals connected to a low potential power source among the plurality of panel connection terminals. Preferably, the first circuit board terminal and the second circuit board terminal are electrically connected to a circuit board terminal connected to a high potential power source among the plurality of circuit board terminals. .

  According to this configuration, since the panel connection terminal connected to the low potential power supply and the circuit board terminal connected to the high potential power supply are selectively connected, the signal of the wiring connected to each terminal is “Hi”. "Or" Low ". As a result, the model of the electro-optical panel can be easily determined based on the connection state between the panel connection terminal and the circuit board terminal.

  Application Example 6 An electronic apparatus according to this application example includes the electro-optical device described above.

  According to this configuration, since the electro-optical device described above is provided, it is possible to appropriately correct the driving of the electro-optical panel, and it is possible to provide an electronic apparatus that can improve display quality.

FIG. 2 is a perspective view schematically illustrating a configuration of a liquid crystal device as an electro-optical device according to the first embodiment. FIG. 2 is a schematic plan view showing a structure of a liquid crystal panel that constitutes a liquid crystal device. The schematic cross section which follows the AA 'line of the liquid crystal panel shown in FIG. FIG. 3 is an equivalent circuit diagram illustrating an electrical configuration of the liquid crystal panel. The schematic plan view which shows the connection state of the liquid crystal panel which comprises a liquid crystal device, and a flexible wiring board. The exploded view which shows the state before the connection of a liquid crystal panel and a flexible wiring board. The schematic plan view explaining the example of a connection of a liquid crystal panel and a flexible wiring board. 5 is a flowchart showing a method for manufacturing a liquid crystal device in the order of steps. The schematic plan view which shows a one part process among the manufacturing methods of a liquid crystal device. The schematic plan view which shows a one part process among the manufacturing methods of a liquid crystal device. FIG. 3 is a schematic diagram illustrating a configuration of a liquid crystal projector as an example of an electronic apparatus. The schematic plan view which shows the specific example of the terminal arrangement | sequence of the liquid crystal panel of 2nd Embodiment, and a flexible wiring board. The schematic plan view which shows the structure of the modification of a panel connection terminal. FIG. 9 is a schematic plan view illustrating a configuration of a modification example of the liquid crystal device.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described with reference to the drawings. Note that the drawings to be used are appropriately enlarged or reduced so that the part to be described can be recognized. In the present embodiment, a TFT (Thin Film Transistor) active matrix driving type liquid crystal device used as a light valve in a liquid crystal projector that is a projection type image device will be described as an example of an electro-optical device.

(First embodiment)
<Configuration of electro-optical device>
FIG. 1 is a perspective view schematically showing a configuration of a liquid crystal device as an electro-optical device. Hereinafter, the configuration of the liquid crystal device will be described with reference to FIG.

  As shown in FIG. 1, the liquid crystal device 10 includes a liquid crystal panel 100 as an electro-optical panel, a flexible wiring board 200 as a circuit board, and a frame 300. The frame 300 is fixed to the liquid crystal panel 100 by a hook (not shown).

  Dust-proof glass (not shown) is attached to the front and back surfaces of the liquid crystal panel 100. More specifically, the dustproof glass is provided to prevent dust and the like from adhering to at least the display area of the liquid crystal panel 100. Further, for example, a driving IC 400 is mounted on the flexible wiring board 200.

  For example, the driving IC 400 includes a part of a data line driving circuit (not shown). The driving IC 400 is electrically and mechanically mounted on the flexible wiring board 200 using a TAB (Tape Automated Bonding) technique. The flexible wiring board 200 includes, for example, an insulating base material such as polyimide, and a wiring pattern formed on the base material.

  FIG. 2 is a schematic plan view showing the structure of the liquid crystal panel constituting the liquid crystal device. FIG. 3 is a schematic cross-sectional view taken along the line AA ′ of the liquid crystal panel shown in FIG. Hereinafter, the structure of the liquid crystal panel will be described with reference to FIGS.

  As shown in FIGS. 2 and 3, the liquid crystal panel 100 constituting the liquid crystal device 10 includes, for example, a TFT using a thin film transistor (hereinafter referred to as “TFT (Thin Film Transistor) element”) as a pixel switching element. This is an active matrix liquid crystal panel. In the liquid crystal panel 100, an element substrate 12 and a counter substrate 13 constituting a pair of substrates are bonded together via a sealing material 14 having a substantially rectangular frame shape in plan view.

  The element substrate 12 and the counter substrate 13 are made of a translucent material such as quartz, for example. The liquid crystal panel 100 has a configuration in which a liquid crystal layer 15 is enclosed in a region surrounded by a sealing material 14. The sealing material 14 is provided with a liquid crystal injection port 16 for injecting liquid crystal, and the liquid crystal injection port 16 is sealed with a sealing material 17.

  As the liquid crystal layer 15, for example, a liquid crystal material having a positive dielectric anisotropy is used. In the liquid crystal panel 100, a frame light-shielding film 18 having a rectangular frame shape made of a light-shielding material is formed on the counter substrate 13 along the vicinity of the inner periphery of the sealing material 14, and an area inside the frame light-shielding film 18 is formed. It is a display area 19.

  The frame light shielding film 18 is made of, for example, aluminum (Al), which is a light shielding material, and is provided so as to partition the outer periphery of the display region 19 on the counter substrate 13 side.

  In the display area 19, pixel areas 21 are provided in a matrix. The pixel area 21 constitutes one pixel that is the minimum display unit of the display area 19. In the region outside the sealing material 14, the data line driving circuit 22 and the panel connection terminal 41a are formed along one side (the lower side in FIG. 2) of the element substrate 12. A flexible wiring board 200 for connecting to the outside is electrically connected to the panel connection terminal 41a.

  Further, scanning line driving circuits 24 are formed in the inner region of the sealing material 14 along two sides adjacent to the one side. An inspection circuit 25 is formed on the remaining side of the element substrate 12 (upper side in FIG. 2). The frame light shielding film 18 formed on the counter substrate 13 side is formed, for example, at a position facing the scanning line driving circuit 24 and the inspection circuit 25 formed on the element substrate 12 (a position overlapping in plan).

  On the other hand, at each corner portion of the counter substrate 13 (for example, four corner portions of the sealing material 14), vertical conduction terminals 26 for electrical connection between the element substrate 12 and the counter substrate 13 are arranged. It is installed.

  As shown in FIG. 3, a plurality of pixel electrodes 27 are formed on the element substrate 12 on the liquid crystal layer 15 side, and a first alignment film 28 is formed so as to cover the pixel electrodes 27. The pixel electrode 27 is a conductive film made of a transparent conductive material such as ITO (Indium Tin Oxide).

  On the other hand, a lattice-shaped light shielding film (BM: black matrix) (not shown) is formed on the liquid crystal layer 15 side of the counter substrate 13, and a flat solid common electrode 31 is formed thereon. A second alignment film 32 is formed on the common electrode 31. The common electrode 31 is a conductive film made of a transparent conductive material such as ITO.

  The liquid crystal panel 100 is a transmissive type, and polarizing plates (not shown) and the like are respectively disposed on the light incident side and the light emitting side of the element substrate 12 and the counter substrate 13. The configuration of the liquid crystal panel 100 is not limited to this, and may be a reflective type or a transflective type.

  FIG. 4 is an equivalent circuit diagram showing an electrical configuration of the liquid crystal panel. Hereinafter, the electrical configuration of the liquid crystal panel will be described with reference to FIG.

  As shown in FIG. 4, the liquid crystal panel 100 has a plurality of pixel regions 21 that constitute the display region 19. A pixel electrode 27 is disposed in each pixel region 21. A TFT element 33 is formed in the pixel region 21.

  The TFT element 33 is a switching element that controls energization of the pixel electrode 27. A data line 34 is electrically connected to the source side of the TFT element 33. Each data line 34 is supplied with, for example, image signals S1, S2,..., Sn from the data line driving circuit 22 (see FIG. 2).

  A scanning line 35 is electrically connected to the gate side of the TFT element 33. For example, scanning signals G1, G2,..., Gm are supplied to the scanning lines 35 in a pulsed manner at a predetermined timing from the scanning line driving circuit 24 (see FIG. 2). Further, the pixel electrode 27 is electrically connected to the drain side of the TFT element 33.

  .., Gm supplied from the scanning line 35 causes the TFT element 33 serving as a switching element to be in an ON state for a certain period, so that the image signals S1, S2,. , Sn are written to the pixel region 21 via the pixel electrode 27 at a predetermined timing.

  The predetermined level image signals S1, S2,..., Sn written in the pixel region 21 are held for a certain period by a liquid crystal capacitor formed between the pixel electrode 27 and the common electrode 31 (see FIG. 3). In order to prevent the retained image signals S1, S2,..., Sn from leaking, a pixel potential side capacitor electrode electrically connected to the pixel electrode 27 and a shield layer (example of a capacitor line) A storage capacitor 37 is formed between the capacitor electrode 36 and a capacitor electrode 36 (not shown).

  Thus, when a voltage signal is applied to the liquid crystal layer 15, the alignment state of the liquid crystal molecules changes according to the applied voltage level. Thereby, the light incident on the liquid crystal layer 15 is modulated to generate image light.

<Configuration of liquid crystal panel and flexible wiring board>
FIG. 5 is a schematic plan view showing the configuration of the liquid crystal device of the present embodiment. FIG. 6 is an exploded plan view showing a state before connection between the liquid crystal panel and the flexible wiring board. Hereinafter, the structure of the liquid crystal device and the liquid crystal panel and the flexible wiring board constituting the liquid crystal device will be described with reference to FIGS. Note that the liquid crystal device 10 illustrated in FIGS. 5 and 6 does not illustrate the frame 300 and the like.

  As shown in FIG. 5, in the liquid crystal device 10, the liquid crystal panel 100 and the flexible wiring board 200 are electrically connected to each other via an anisotropic conductive film (ACF) that is not shown in the connection terminal portion 51. ing. Specifically, on the element substrate 12 of the liquid crystal panel 100, wirings (data lines 34, scanning lines 35, etc.) electrically connected to the data line driving circuit 22 and the scanning line driving circuit 24 (see FIG. 2). These wirings are electrically connected to the driving IC 400 provided on the flexible wiring board 200 and the first external connection terminal portion 52 having a plurality of external connection terminals via the connection terminal portion 51. ing.

  An image signal input through the wiring is supplied to various circuit elements such as a switching element for image display and a data line 34 via the driving IC 400, whereby a desired image is displayed in the display area 19. Is done.

  Further, as shown in FIG. 6, a panel connection terminal portion 41 is provided on one end side of the liquid crystal panel 100. The panel connection terminal portion 41 is provided with a plurality of panel connection terminals 41 a to 41 z for electrical connection with the flexible wiring board 200.

  On the other hand, on one end side of the flexible wiring board 200, the first FPC connection terminal part 45 as the first circuit board terminal part and the second FPC connection terminal part as the second circuit board terminal part from the front end side (the liquid crystal panel 100 side). 46 is provided.

  The first FPC connection terminal portion 45 is provided with first FPC connection terminals 45 a to 45 z as a plurality of first circuit board terminals for electrical connection with the panel connection terminal portion 41. The second FPC connection terminal portion 46 includes second FPC connection terminals 46 a to 46 z as a plurality of second circuit board terminals having a terminal arrangement different from that of the first FPC connection terminal portion 45 for electrical connection with the panel connection terminal portion 41. Is provided.

  In this embodiment, in order to drive optimally according to the characteristics of the liquid crystal panel 100, the panel connection terminal portion 41 and, for example, the first FPC connection terminal portion 45 are electrically connected. The electrical connection will be described later.

  FIG. 7 is a schematic plan view for explaining an example of connection between the liquid crystal panel and the flexible wiring board. A specific example of the terminal arrangement and connection example will be described below with reference to FIG.

  As shown in FIG. 7, on the first side 100a side of the liquid crystal panel 100, as described above, the plurality of panel connection terminals 41a to 41z for electrical connection with the flexible wiring board 200 are densely arranged. A panel connection terminal portion 41 is provided.

  Among the plurality of panel connection terminals 41a to 41z, for example, the panel connection terminals 41a, 41b, 41y, and 41z are connected to the GND.

  On the other hand, as described above, the first FPC connection terminal portion 45 having the plurality of first FPC connection terminals 45a to 45z for electrical connection with the liquid crystal panel 100 is provided on the first side 200a side of the flexible wiring board 200. It has been. A second FPC connection terminal portion 46 having a plurality of second FPC connection terminals 46 a to 46 z is provided along the first side 200 a in a region away from the first side 200 a of the flexible wiring board 200.

  Among the plurality of first FPC connection terminals 45a to 45z, for example, the first FPC connection terminal 45a is connected to the power supply voltage 61 via a pull-up resistor (current limiting resistor). Of the plurality of second FPC connection terminals 46a to 46z, for example, the second FPC connection terminal 46a is connected to the power supply voltage 61 via a pull-up resistor (current limiting resistor). The power supply voltage 61 is, for example, 3.3V. The first FPC connection terminal 45z and the second FPC connection terminal 46z are connected to GND.

  First, the case where the panel connection terminal part 41 of the liquid crystal panel 100 and the 1st FPC connection terminal part 45 arrange | positioned at the front end side of the flexible wiring board 200 are electrically connected is demonstrated. Since the first FPC connection terminal 45a is electrically connected to the panel connection terminal 41a connected to the GND, the signal A is “Low”. Further, since the first FPC connection terminal 45b has no terminal and is not electrically connected to the panel connection terminal 41b, the first FPC connection terminal 45b is in an open state, and the signal B is “Hi”.

  Next, the case where the panel connection terminal part 41 of the liquid crystal panel 100 and the 2nd FPC connection terminal part 46 arrange | positioned 2nd from the front-end | tip of the flexible wiring board 200 are electrically connected is demonstrated. In this case, it is assumed that the tip side of the second FPC connection terminal portion 46 of the flexible wiring board 200 is cut and pasted (connected). Thereby, the panel connection terminal portion 41 and the second FPC connection terminal portion 46 can be electrically connected without adversely affecting the display area of the liquid crystal panel 100.

  Since the second FPC connection terminal 46a has no terminal to be connected to the panel connection terminal 41a, the signal A is “Hi”. Further, since the second FPC connection terminal 46b is electrically connected to the panel connection terminal 41b connected to the GND, the signal B becomes “Low”.

  In this manner, the model of the liquid crystal panel 100 can be identified by making the signal (“Hi” / “Low”) output for each FPC connection terminal different. Therefore, the liquid crystal device 10 can be optimally driven in accordance with the characteristics of the liquid crystal panel 100. Hereinafter, a method for manufacturing the liquid crystal device 10 including the step of connecting the liquid crystal panel 100 and the flexible wiring board 200 will be described.

<Method of manufacturing electro-optical device>
FIG. 8 is a flowchart showing a method of manufacturing the liquid crystal device in the order of steps. 9 and 10 are schematic plan views showing some steps in the method of manufacturing the liquid crystal device. Hereinafter, a method for manufacturing the liquid crystal device will be described with reference to FIGS.

  First, a manufacturing method on the element substrate 12 side will be described. In step S11, the TFT element 33 and the like are formed on the element substrate 12 made of a quartz substrate or the like. Specifically, the TFT element 33 and the like are formed on the element substrate 12 by using a well-known film forming technique, photolithography technique, and etching technique.

  In step S12, the pixel electrode 27 is formed. Specifically, the pixel electrode 27 is formed above the TFT element 33 on the element substrate 12 by using a well-known film forming technique, photolithography technique, and etching technique, similarly to the formation of the TFT element 33 and the like.

In step S <b> 13, the first alignment film 28 is formed above the pixel electrode 27. As a manufacturing method of the first alignment film 28, for example, an oblique deposition method in which an inorganic material such as silicon oxide (SiO ₂ ) is obliquely deposited is used. Thus, the element substrate 12 side is completed.

  Next, a manufacturing method on the counter substrate 13 side will be described. First, in step S21, the common electrode 31 is formed on the counter substrate 13 made of a light-transmitting material such as a quartz substrate by using a well-known film forming technique, photolithography technique, and etching technique.

  In step S <b> 22, the second alignment film 32 is formed on the common electrode 31. The manufacturing method of the second alignment film 32 is the same as that of the first alignment film 28. For example, the oblique deposition method is used. Thus, the counter substrate 13 side is completed. Next, a method for bonding the element substrate 12 and the counter substrate 13 will be described.

  In step S <b> 31, the sealing material 14 is applied on the element substrate 12. In detail, the relative positional relationship between the element substrate 12 and the dispenser (which may be a discharge device) is changed, and the sealing material 14 is placed on the periphery of the display area 19 in the element substrate 12 (so as to surround the display area 19). Apply.

  In step S32, the element substrate 12 and the counter substrate 13 are bonded together. Specifically, the element substrate 12 and the counter substrate 13 are bonded together through the sealing material 14 applied to the element substrate 12. More specifically, it is performed while ensuring the positional accuracy in the vertical and horizontal directions of the substrates 12 and 13.

  In step S33, liquid crystal is injected into the structure from the liquid crystal injection port 16 (see FIG. 2), and then the liquid crystal injection port 16 is sealed. For sealing, for example, a sealing material 17 such as a resin is used.

  In step S34, the flexible wiring board 200 is connected (bonded) to the liquid crystal panel 100. Specifically, this will be described with reference to FIGS. First, as shown in FIG. 9A, an uncut flexible wiring board 201, that is, a flexible wiring board 201 provided with a first FPC connection terminal portion 45 and a second FPC connection terminal portion 46 is prepared.

  A length L1 (a first distance apart) from the first FPC connection terminal portion 45 to the first external connection terminal portion 52, and a second external connection terminal portion having a plurality of external connection terminals from the second FPC connection terminal portion 46. Each terminal part is arrange | positioned so that it may become the length L2 (separated 1st distance) to 53 to the same length.

  Next, the FPC connection terminal portions 45 and 46 of the flexible wiring board 201 connected to the liquid crystal panel 100 are selected in accordance with the characteristics of the liquid crystal panel 100. Here, for example, the panel connection terminal portion 41 and the first FPC connection terminal portion 45 are electrically connected.

  Next, as shown in FIG. 9B, unnecessary portions are cut so that the FPC connection terminal portion to be connected is disposed at the tip 200 b of the flexible wiring board 201. In the present embodiment, since the first FPC connection terminal portion 45 to be connected is already arranged at the tip 200b of the flexible wiring board 201, the region on the tip 200b side need not be cut.

  Thereafter, in order to make the length of the flexible wiring board a predetermined length, the distal end region 200c (second side) on the other end side of the flexible wiring board 201 has a region (first side) from the first external connection terminal portion 52. 2) The area of the external connection terminal portion 53) is cut.

  Next, as shown in FIG. 10, the first FPC connection terminal portion 45 of the flexible wiring board 200 is connected to the panel connection terminal portion 41 of the liquid crystal panel 100. For example, the flexible wiring board 200 is electrically connected to the liquid crystal panel 100 by thermocompression bonding the panel connection terminal portion 41 and the first FPC connection terminal portion 45 via an ACF (not shown). Thus, the liquid crystal device 10 is completed.

  In this way, the FPC connection terminal portions 45 and 46 to be connected are selected according to the characteristics (type) of the liquid crystal panel 100, and for example, the first FPC connection terminal portion 45 of the flexible wiring board 200 is connected to the panel connection terminal portion 41. In this case, the type of the liquid crystal panel 100 can be determined as, for example, “Panel A”, and the liquid crystal device 10 is corrected and driven in accordance with the liquid crystal panel 100, thereby correcting the liquid crystal panel 100 optimally. It can be performed.

<Configuration of electronic equipment>
FIG. 11 is a schematic diagram illustrating a configuration of a liquid crystal projector as an example of an electronic apparatus including the above-described liquid crystal device. Hereinafter, the configuration of the liquid crystal projector including the liquid crystal device will be described with reference to FIG.

  As shown in FIG. 11, the liquid crystal projector 901 has a structure in which three liquid crystal modules employing the liquid crystal device 10 described above are arranged and used as RGB light valves 911R, 911G, and 911B, respectively.

  Specifically, when projection light is emitted from a lamp unit 912 of a white light source such as a metal hydrolamp, the light components R, G, and B corresponding to the three primary colors of RGB are generated by three mirrors 913 and two dichroic mirrors 914. Divided and led to light valves 911R, 911G, and 911B corresponding to the respective colors. In particular, the light component B is guided through a relay lens system 918 including an incident lens 915, a relay lens 916, and an exit lens 917 in order to prevent light loss due to a long optical path.

  The light components R, G, and B corresponding to the three primary colors modulated by the light valves 911R, 911G, and 911B are synthesized again by the dichroic prism 919, and then projected as a color image on the screen 921 through the projection lens 920. The

  As described above, the present invention is not limited to the liquid crystal projector 901 in which three liquid crystal modules are arranged, and may be applied to, for example, a liquid crystal projector in which one liquid crystal module is arranged.

  The liquid crystal projector 901 having such a configuration can be efficiently assembled by reducing the cost through the liquid crystal module employing the liquid crystal device 10 described above. In addition to the above-described liquid crystal projector 901, the electronic device provided with the liquid crystal device 10 is a high-definition EVF (Electric View Finder), a mobile phone, a mobile computer, a digital camera, a digital video camera, a television, a display, an in-vehicle device, an audio It can be used for various electronic devices such as devices and lighting devices.

  As described above in detail, according to the liquid crystal device 10 and the electronic apparatus of the first embodiment, the following effects can be obtained.

  (1) According to the liquid crystal device 10 of the first embodiment, the first FPC connection terminal portion 45 or the second FPC connection terminal portion 46 of the flexible wiring board 200 is selected and electrically connected to the panel connection terminal portion 41 of the liquid crystal panel 100. Since the connection is made, the model of the liquid crystal panel 100 can be easily discriminated by connection with the first FPC connection terminal portion 45 or the second FPC connection terminal portion 46 having a different terminal arrangement. Thus, the liquid crystal device 10 can be driven appropriately.

  (2) According to the liquid crystal device 10 of the first embodiment, the length is the same as the first FPC connection terminal portion 45, the first external connection terminal portion 52, and the length L1 with the length L1 opened (separated). Since the second FPC connection terminal portion 46 and the second external connection terminal portion 53 are provided with a gap L2 (separated), when the first FPC connection terminal portion 45 is selected, the second external connection terminal portion 53 When the region is cut and the second FPC connection terminal portion 46 is selected, the length of the flexible wiring board 200 can be made the same by cutting the region of the first FPC connection terminal portion 45. Therefore, the length of the flexible wiring board 200 can be unified regardless of which of the first FPC connection terminal portion 45 and the second FPC connection terminal portion 46 is selected.

  (3) According to the liquid crystal device 10 of the first embodiment, it is not necessary to produce a dedicated flexible wiring board 200 according to the model of the liquid crystal panel 100, and the inventory management of the flexible wiring board 200 becomes easy, or the flexible wiring board The man-hours and costs for the substrate 200 can be reduced.

  (4) According to the electronic apparatus of the first embodiment, since the liquid crystal device 10 as described above is provided, the liquid crystal panel 100 can be appropriately corrected and driven, and the display quality can be improved. An electronic device that can be provided can be provided.

(Second Embodiment)
<Configuration of liquid crystal panel and flexible wiring board>
FIG. 12 is an exploded plan view showing a state before the connection between the liquid crystal panel of the second embodiment and the flexible wiring board. Hereinafter, the structure of the liquid crystal panel and the flexible wiring board constituting the liquid crystal device of the second embodiment will be described with reference to FIG.

  The liquid crystal device 500 according to the second embodiment is different from the first embodiment in that a selection terminal for identifying the model of the liquid crystal panel 510 is provided on the liquid crystal panel 510 side. Hereinafter, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted or simplified here.

  As illustrated in FIG. 12, the liquid crystal device 500 according to the second embodiment includes a first panel connection terminal portion 511 including a plurality of first panel connection terminals 511 b to 511 z along the first side 510 a of the liquid crystal panel 510. Is provided. Furthermore, the 2nd panel connection terminal part 512 provided with the some 2nd panel connection terminals 512a-512z is provided along the sequence direction of the 1st panel connection terminals 511b-511z.

  The first panel connection terminal portion 511 and the second panel connection terminal portion 512 are different in the arrangement of the terminals 511b and 512a, and depending on the characteristic of the liquid crystal panel 510, either the panel connection terminal portion 511 or 512 The flexible wiring board 520 is electrically connected.

  The flexible wiring board 520 includes FPC connection terminals 521a to 521z as a plurality of circuit board terminals along the first side 520a for electrical connection with the panel connection terminal parts 511 and 512. The FPC connection terminal portion 521 is provided. Hereinafter, an example of connection between the liquid crystal panel 510 and the flexible wiring board 520 will be described.

  In the first panel connection terminal portion 511 provided along the first side 510a of the liquid crystal panel 510, for example, the first panel connection terminal 511b and the first panel connection terminal among the plurality of first panel connection terminals 511b to 511z. 511z is connected to GND (low potential power supply). Moreover, in the 2nd panel connection terminal part 512, the 2nd panel connection terminal 512a and the 2nd panel connection terminal 512z are connected to GND among several 2nd panel connection terminals 512a-512z, for example.

  On the other hand, on the first side 520a side of the flexible wiring board 520, an FPC connection terminal portion 521 including a plurality of FPC connection terminals 521a to 521z is provided so as to be electrically connected to the panel connection terminal portions 511 and 512. .

  Among the plurality of FPC connection terminals 521a to 521z, for example, the FPC connection terminal 521a and the FPC connection terminal 521b are each connected to a power supply voltage 561 (high potential power supply) via a pull-up resistor (current limiting resistor). The power supply voltage 561 is, for example, 3.3V. The FPC connection terminal 521z is connected to the GND.

  First, the case where the 1st panel connection terminal part 511 of the liquid crystal panel 510 and the FPC connection terminal part 521 of the flexible wiring board 520 are electrically connected is demonstrated. Since the FPC connection terminal 521a is not electrically connected to the first panel connection terminal, the FPC connection terminal 521a is in an open state, and the signal A is “Hi”. Since the FPC connection terminal 521b is electrically connected to the first panel connection terminal 511b connected to the GND, the signal B becomes “Low”. The FPC connection terminal 521z is fixed to “Low”.

  Further, a case where the second panel connection terminal portion 512 of the liquid crystal panel 510 and the FPC connection terminal portion 521 of the flexible wiring board 520 are electrically connected will be described. Since the FPC connection terminal 521a is electrically connected to the second panel connection terminal 512a connected to the GND, the signal A is “Low”. Since the FPC connection terminal 521b is not electrically connected to the second panel connection terminal, the FPC connection terminal 521b is in an open state, and the signal B is “Hi”. The FPC connection terminal 521z is fixed to “Low”.

  In this manner, the model of the liquid crystal panel 510 can be identified by making the signals (“Hi” / “Low”) output for the FPC connection terminals 521a to 521z different. Therefore, the liquid crystal device 500 can be optimally driven in accordance with the characteristics of the liquid crystal panel 510.

  As described above, when the panel connection terminal portions 511 and 512 to be connected are selected according to the characteristics (type) of the liquid crystal panel 510 and the flexible wiring board 520 is connected to the second panel connection terminal portion 512, for example, the liquid crystal panel Is determined to be “panel B”, the liquid crystal device 500 can be driven in accordance with the liquid crystal panel 510, and an optimal correction can be applied to the driving of the liquid crystal panel 510.

  As described above in detail, according to the liquid crystal device 500 of the second embodiment, the following effects can be obtained.

  (5) According to the liquid crystal device 500 of the second embodiment, the first panel connection terminal portion 511 or the second panel connection terminal portion 512 of the liquid crystal panel 510 is selected and the FPC connection terminal portion 521 of the flexible wiring board 520 is electrically connected. Therefore, the type of the liquid crystal panel 510 can be easily determined by connecting to the first panel connection terminal portion 511 or the second panel connection terminal portion 512 having different terminal arrangements. Accordingly, the liquid crystal device 500 can be driven appropriately. Further, the flexible wiring board 520 can be connected to the liquid crystal panel 510 without cutting.

  In addition, embodiment is not limited above, It can also implement with the following forms.

(Modification 1)
As described above, the liquid crystal panel 510 according to the second embodiment has a terminal shape as shown in FIG. 13 if each terminal has the same polarity in the first panel connection terminal portion 511 and the second panel connection terminal portion 512. It may be. FIG. 13 is an exploded plan view showing a state before the liquid crystal panel 530 and the flexible wiring board 520 are connected.

  Specifically, as shown in FIG. 13, the first panel connection terminal portion 511 is provided with a first panel connection terminal 511 b used for determining the type of the liquid crystal panel 530. On the other hand, the second panel connection terminal portion 512 is provided with a second panel connection terminal 512a used for discrimination of the type of the liquid crystal panel 530. In addition, the panel connection terminal 513v is provided in a portion that does not affect the determination of the model of the liquid crystal panel 530, extending from the area of the first panel connection terminal portion 511 to the area of the second panel connection terminal portion 512. ing. Similarly, for example, each of the panel connection terminals 513w to 513z is provided from the area of the first panel connection terminal portion 511 to the area of the second panel connection terminal portion 512.

  By providing such panel connection terminals 513v to 513z, when the flexible wiring board 520 is attached to the liquid crystal panel 530, depending on the model (characteristics) of the liquid crystal panel 530, the first panel connection terminal portion 511 to the second panel connection terminal. The first panel connection terminal 511b or the second panel connection terminal 512a can be electrically connected depending on the shift amount in the region of the section 512, and the model can be determined (input state is determined).

  According to this, similarly to the above-described embodiment, it is possible to drive the liquid crystal device 550 in accordance with the liquid crystal panel 530, and it is possible to make an optimal correction for driving the liquid crystal panel 530.

(Modification 2)
As in the first embodiment described above, the present invention is not limited to selecting either the first FPC connection terminal unit 45 or the second FPC connection terminal unit 46 and determining the model of the liquid crystal panel 100. For example, as shown in FIG. The liquid crystal devices 600 and 700 may be configured as described above.

  Specifically, as illustrated in FIG. 14A, the flexible wiring board 620 includes a first FPC connection terminal portion 601, a second FPC connection terminal portion 602, from the distal end side (the liquid crystal panel 100 side) of the flexible wiring substrate 620. And a third FPC connection terminal portion 603. 14B, the flexible wiring board 720 includes a first FPC connection terminal portion (not shown) and a second FPC connection terminal portion (not shown) from the distal end side (the liquid crystal panel 100 side) of the flexible wiring substrate 720. (Not shown) and a third FPC connection terminal portion 703.

  As shown in FIG. 14A, when the first FPC connection terminal portion 601 is selected, the tip end side is cut from the first external connection terminal portion 52 on the other end side, and the first external connection terminal portion 52 is connected to the other end. Place on the side. At this time, the length from one end (first FPC connection terminal portion 601) to the other end (first external connection terminal portion 52) is L3.

  On the other hand, as shown in FIG. 14B, when the third FPC connection terminal portion 703 is selected, the other end side is not cut because the third external connection terminal portion 54 on the other end side is used. At this time, the length from one end (third FPC connection terminal portion 703) to the other end (third external connection terminal portion 54) is L4. The length L3 of the flexible wiring board 620 shown in FIG. 14A and the length L4 of the flexible wiring board 720 shown in FIG. 14B are the same length, and the length can be unified. In this way, the liquid crystal devices 600 and 700 with the increased number of terminal portions may be configured.

  DESCRIPTION OF SYMBOLS 10,500,550,600,700 ... Liquid crystal device as an electro-optical device, 12 ... Element substrate, 13 ... Counter substrate, 14 ... Sealing material, 15 ... Liquid crystal layer, 16 ... Liquid crystal inlet, 17 ... Sealing material, DESCRIPTION OF SYMBOLS 18 ... Frame light shielding film, 19 ... Display area, 21 ... Pixel area, 22 ... Data line drive circuit, 24 ... Scan line drive circuit, 25 ... Inspection circuit, 26 ... Vertical conduction terminal, 27 ... Pixel electrode, 28 ... 1st Alignment film 31 ... Common electrode 32 ... Second alignment film 33 ... TFT element 34 ... Data line 35 ... Scanning line 36 ... Capacitance electrode 37 ... Storage capacitor 41 ... Panel connection terminal portion 41a-41z , 513v to 513z ... panel connection terminals, 45 ... first FPC connection terminal portions as first circuit board terminal portions, 45a to 45z ... first FPC connection terminals as first circuit board terminals, 46 ... as second circuit board terminal portions. The first FPC connection terminal part, 46a-46z ... 2nd FPC connection terminal as 2nd circuit board terminal, 51 ... Connection terminal part, 52 ... 1st external connection terminal part, 53 ... 2nd external connection terminal part, 54 ... 3rd exterior Connection terminal portion 61, 561 ... power supply voltage, 100, 510, 530 ... liquid crystal panel as electro-optical panel, 100a, 200a, 510a, 520a ... first side, 200, 201, 520, 620, 720 ... circuit board Flexible wiring board, 200b, 200c ... tip (second side), 300 ... frame, 400 ... driving IC, 511 ... first panel connection terminal portion, 511b to 511z ... first panel connection terminal, 512 ... second panel Connection terminal portion, 512a to 512z ... second panel connection terminal, 521 ... FPC connection terminal portion as a circuit board terminal portion, 521a to 521z ... FPC connection terminal as a road board terminal, 601... First FPC connection terminal part, 602... Second FPC connection terminal part, 603, 703 ... third FPC connection terminal part, 901... Liquid crystal projector, 911 R, 911 G, 911 B. DESCRIPTION OF SYMBOLS ... Lamp unit, 913 ... Mirror, 914 ... Dichroic mirror, 915 ... Incident lens, 916 ... Relay lens, 917 ... Outgoing lens, 918 ... Relay lens system, 919 ... Dichroic prism, 920 ... Projection lens, 921 ... Screen.

Claims (6)

An electro-optical panel provided with a panel connection terminal portion having a plurality of panel connection terminals including a first panel connection terminal and a second panel connection terminal;
A first circuit board terminal portion having a plurality of circuit board terminals including a first circuit board terminal, and a plurality of circuit board terminals including a second circuit board terminal and having a terminal arrangement different from that of the first circuit board terminal portion. A circuit board provided with two circuit board terminal portions;
Have
The first circuit board terminal portion is disposed along a first side of the circuit board, and the second circuit board terminal portion includes a second side facing the first side of the circuit board and the first circuit. It is arranged between the board terminal part and
When the electro-optical panel and the circuit board are connected, the first panel connection terminal and the first circuit board terminal are connected, or the second panel connection terminal and the second circuit board terminal And an electro-optical device. The electro-optical device according to claim 1,
The first panel connection terminal and the second panel connection terminal are electrically connected to a panel connection terminal connected to a low potential power source among the plurality of panel connection terminals,
The electro-optical device, wherein the first circuit board terminal and the second circuit board terminal are electrically connected to a circuit board terminal connected to a high potential power source among the plurality of circuit board terminals. The electro-optical device according to claim 1,
The circuit board is provided with a first external connection terminal part having a plurality of external connection terminals spaced apart from the first circuit board terminal part by a first distance on the second side, and the second circuit board. 2. An electro-optical device, wherein a second external connection terminal portion having a plurality of external connection terminals spaced from the terminal portion by the first distance is provided on the second side. A first panel connection terminal portion having a plurality of panel connection terminals including a first panel connection terminal, and a plurality of panel connection terminals including a second panel connection terminal, the terminal arrangement being different from the first panel connection terminal portion. An electro-optical panel provided with a two-panel connection terminal portion;
A circuit board provided with a circuit board terminal portion having a plurality of circuit board terminals including a first circuit board terminal and a second circuit board terminal;
Have
The first panel connection terminal portion is disposed along a first side of the electro-optical panel, and the second panel connection terminal portion includes a second side opposite to the first side of the electro-optical panel and the first side. It is arranged between 1 panel connection terminal part,
When the electro-optical panel and the circuit board are connected, the first panel connection terminal and the first circuit board terminal are connected, or the second panel connection terminal and the second circuit board terminal And an electro-optical device. The electro-optical device according to claim 4,
The first panel connection terminal and the second panel connection terminal are electrically connected to a panel connection terminal connected to a low potential power source among the plurality of panel connection terminals,
The electro-optical device, wherein the first circuit board terminal and the second circuit board terminal are electrically connected to a circuit board terminal connected to a high potential power source among the plurality of circuit board terminals.   An electronic apparatus comprising the electro-optical device according to any one of claims 1 to 5.

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