JP2012058561A - Electro-optical device, manufacturing method of electro-optical device, and electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electro-optical device whose model is easily discriminated, a method of manufacturing the electro-optical device, and an electronic device thereof.SOLUTION: The electro-optical device includes discrimination terminals 53b and 53c for reading out model information; a fixed potential terminal 53a that is arranged in parallel to the discrimination terminals 53b and 53c and apart from them, and connected to a fixed potential; and inter terminal connection sections 59a and 59b that discriminates the model information by electrically connecting or disconnecting the discrimination terminals 53b and 53c with the fixed potential terminal 53a.

Description

  The present invention relates to an electro-optical device having model information, a method for manufacturing the electro-optical device, 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 to be used and the conditions for alignment treatment (for example, the type of alignment film and the direction of alignment treatment) differ depending on the model. For this reason, it is necessary to give an appropriate drive signal, for example, according to the model of the liquid crystal device. Therefore, in order to determine the model of the liquid crystal device, for example, as described in Patent Document 1 and Patent Document 2, a mark that can be identified for each model is formed on the liquid crystal panel.

JP 2003-57618 A JP 2001-33810 A

  However, the process of newly forming a mark and the process of identifying a mark increase, and there exists a subject that a man-hour takes. Further, there is a risk that a determination error occurs when determining the mark.

  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 device according to this application example includes a first terminal that reads model information, a second terminal that is spaced apart from the first terminal and connected to a constant potential, and the second terminal. An inter-terminal connection unit that determines the model information by electrically connecting or disconnecting one terminal and the second terminal.

  According to this configuration, by checking the potential of the first terminal, the potential is constant when connected to the second terminal via the inter-terminal connection portion, and is not constant if there is no inter-terminal connection portion. Can be determined. In other words, the electrical connection state can be determined with or without the inter-terminal connection portion. Therefore, in order to determine the model of the electro-optical device, it is not necessary to increase the number of steps of using a mask to form the mark or using an apparatus for discriminating the mark as compared to using a mark or the like. . In addition, since the model is determined based on the electrical connection state, it is possible to prevent an operation error such as a mark reading error from occurring.

  Application Example 2 In the electro-optical device according to the application example, an electro-optical panel provided with the first terminal and the second terminal, and a circuit for electrically connecting the electro-optical panel and an external circuit. And a substrate.

  According to this configuration, since the model information can be read from the electro-optical panel, it is possible to determine the model even in a state where the electro-optical panel is not connected to the circuit board. Also, the model information of the electro-optical panel can be obtained through a circuit board.

  Application Example 3 In the electro-optical device according to the application example, it is preferable that the inter-terminal connection portion is provided so as to overlap with at least one of the first terminal and the second terminal in a plan view.

  According to this configuration, since the inter-terminal connection portion is provided so as to overlap the first terminal and the second terminal in a plan view, the contact area with the inter-terminal connection portion increases, and the inter-terminal connection portion is reliably connected. Can be connected. Furthermore, since the contact area increases, the electrical resistance can be reduced, and the electrical reliability can be improved.

  Application Example 4 In the electro-optical device according to the application example, the electro-optical panel is provided with a recess, and at least a part of the first terminal and the second terminal is provided in the recess. It is preferable that at least a part of the inter-terminal connection portion is provided in the recess.

  According to this configuration, since the inter-terminal connection portion is provided in the recess having the first terminal and the second terminal, the contact area between the inter-terminal connection portion and the first terminal and the second terminal is increased. The resistance can be lowered, and the reliability of electrical connection can be improved. In addition, since the inter-terminal connection portion is provided in the recess, the position of the inter-terminal connection portion is fixed, and electrical connection with the first terminal and the second terminal can be reliably performed.

  Application Example 5 The electro-optical device according to the application example includes the electro-optical panel having a pair of substrates, and the first terminal and the second terminal are either one of the pair of substrates. It is preferable that the inter-terminal connection portion is formed using the same conductive member as the vertical conductive portion provided between the pair of substrates.

  According to this configuration, since the inter-terminal connection portion is formed using the same conductive member as the vertical conductive portion, it is possible to suppress the cost without adding a new material, a manufacturing process, or a manufacturing apparatus. .

  Application Example 6 In the electro-optical device manufacturing method according to this application example, the first terminal for reading the model information is formed, and the first terminal is provided in parallel with being spaced apart from the first terminal and connected to a constant potential. It has a terminal formation process which forms a 2nd terminal, and a grant selection process which gives or does not give a connection part between terminals for making the 1st terminal and the 2nd terminal into conduction.

  According to this method, since the inter-terminal connection portion is or is not applied between the first terminal and the second terminal by the application selection step, the potential becomes constant by confirming the potential of the first terminal. Whether or not the inter-terminal connecting portion is provided can be determined. Therefore, in order to determine the model of the electro-optical device, it is not necessary to increase the number of steps of using a mask to form the mark or using an apparatus for discriminating the mark as compared to using a mark or the like. . In addition, since the model is determined based on the electrical connection state, it is possible to prevent an operation error such as a mark reading error from occurring.

  Application Example 7 In the method of manufacturing an electro-optical device according to the application example, the terminal forming step includes the first terminal and the second terminal on one of a pair of substrates constituting the electro-optical panel. And the step of providing the inter-terminal connection portion preferably forms the inter-terminal connection portion using a conductive member in the step of providing the vertical conductive portion between the pair of substrates.

  According to this method, the inter-terminal connection portion can be formed using the same conductive member in the same step as the step of forming the vertical conductive portion. Therefore, it is possible to suppress the addition of a new material or a significant increase in the number of manufacturing processes and manufacturing apparatuses, and the cost can be suppressed.

  Application Example 8 An electronic apparatus according to this application example includes the electro-optical device described above.

  According to this configuration, since the above-described electro-optical device is provided, an electronic apparatus with high display quality can be provided.

FIG. 3 is a perspective view schematically showing a configuration of a liquid crystal device as an electro-optical device. 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. FIG. 3 is a schematic plan view showing a connection state between a liquid crystal panel and a circuit board constituting the liquid crystal device. The model enlarged view which expands and shows the identification part formed in the liquid crystal panel. 5 is a flowchart showing a method for manufacturing a liquid crystal device in the order of steps. 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 structure of the identification part of a modification. The schematic plan view which shows the structure of the identification part of a modification. The schematic cross section which shows the structure of the modification of the identification part in a liquid crystal panel. The schematic cross section which shows the structure of the modification of the identification part in a liquid crystal panel.

  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.

<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 500 includes a liquid crystal panel 11 as an electro-optical panel, a flexible substrate 600 as a circuit board, and a frame 700. The frame 700 is fixed to the liquid crystal panel 11 by a hook (not shown).

  Dustproof glass (not shown) is attached to the front and back surfaces of the liquid crystal panel 11. 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 11. In addition, for example, a driving IC 800 is mounted on the flexible substrate 600.

  The driving IC 800 includes, for example, a part of a data line driving circuit (not shown). The driving IC 800 is electrically and mechanically mounted on the wiring board using a TAB (Tape Automated Bonding) technique. The wiring board has, for example, a base material having insulation properties such as polyimide, and a wiring formed by patterning 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 device will be described with reference to FIGS. 2 and 3, the illustration of the flexible substrate is omitted.

  As shown in FIGS. 2 and 3, the liquid crystal panel 11 constituting the liquid crystal device 500 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 11, 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 11 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 11, 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 41 are formed along one side (the lower side in FIG. 2) of the element substrate 12. A flexible substrate 600 as a circuit board for connecting to the outside is electrically connected to the panel connection terminal 41 via the FPC connection terminal 46.

  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 of the counter substrate 13 (for example, four corners of the sealing material 14), the upper and lower conductive portions are vertically connected to establish electrical continuity between the element substrate 12 and the counter substrate 13. A conduction terminal 26 (silver point) is provided.

  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 11 is a transmissive type, and polarizing plates (not shown) and the like are arranged on the light incident side and the light emitting side of the element substrate 12 and the counter substrate 13, respectively. The configuration of the liquid crystal panel 11 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 11 has a plurality of pixel regions 21 that constitute a 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.

  FIG. 5 is a schematic plan view showing a connection state between the liquid crystal panel and the circuit board constituting the liquid crystal device of the present embodiment. FIG. 6 is a schematic enlarged view showing the identification part (A part) formed on the liquid crystal panel in an enlarged manner. Hereinafter, the configuration of the liquid crystal device will be described with reference to FIGS. Note that the liquid crystal device 500 illustrated in FIG. 5 does not illustrate the frame 700.

  As shown in FIG. 5, in the liquid crystal device 500, the liquid crystal panel 11 and the flexible substrate 600 are electrically connected to each other at the panel connection terminal portion 51 via an anisotropic conductive film (ACF) (not shown). Specifically, on the element substrate 12 (see FIG. 3) of the liquid crystal panel 11, wirings (data lines 34, scanning lines 35, etc.) electrically connected to the data line driving circuit 22 and the scanning line driving circuit 24 are provided. These wirings are electrically connected to the driving IC 800 and the external connection terminal portion 52 provided on the flexible substrate 600 via the panel connection terminal portion 51.

  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 800, thereby displaying a desired image in the display area 19. Is done.

  Further, an identification terminal 53 (53a, 53b, 53c) for identifying the type of the liquid crystal panel 11 and a part of the area (A part: identification part) excluding the area overlapping the counter substrate 13 on the element substrate 12 and Identification wiring 54 (54a, 54b, 54c) is provided. In the identification terminal 53, the first identification terminal 53b as the first terminal and the second identification terminal 53c are separated so as to sandwich the constant potential terminal 53a as the second terminal connected to a constant potential (for example, GND). (See FIG. 6).

  The model information for determining the model of the liquid crystal panel 11 includes, for example, the type of liquid crystal material, the type of the alignment films 28 and 32, and the alignment processing direction (for example, R shift and L shift) as described above. . And according to the model of the liquid crystal panel 11, for example, the display quality can be improved by correcting to an appropriate drive signal.

  The driving IC 800 is provided with a shift determination input unit 55 for determining the shift direction of the alignment films 28 and 32 and a liquid crystal type input unit 56 for determining the type of liquid crystal material.

  The constant potential terminal 53a is electrically connected to a common electrode (for example, GND) through a constant potential wiring 54a. The first identification terminal 53b is electrically connected to the shift determination input unit 55 via the first identification wiring 54b. The second identification terminal 53c is electrically connected to the liquid crystal type input unit 56 via the second identification wiring 54c.

  The constant potential terminal 53a, the first identification terminal 53b, and the second identification terminal 53c may be any places on the element substrate 12 that do not affect other members and the like. It is provided in a region outside the counter substrate 13 as viewed.

  The first identification wiring 54b and the second identification wiring 54c are each connected to the power supply voltage 58 via a pull-up resistor 57 (current limiting resistor). The power supply voltage 58 is, for example, 3.3V. That is, driving is performed by providing or not providing the inter-terminal connection portion 59 (59a, 59b) between the first identification terminal 53b and the constant potential terminal 53a and between the second identification terminal 53c and the constant potential terminal 53a. A signal (“Hi” or “Low”) for discrimination can be sent to the shift discrimination input unit 55 and the liquid crystal type input unit 56 of the IC 800 for use.

  Specifically, as illustrated in FIG. 6, a region to which a first inter-terminal connection portion 59 a for electrically connecting the first identification terminal 53 b and the constant potential terminal 53 a is provided as a region A. Further, a region to which the second inter-terminal connection portion 59b for electrically connecting the second identification terminal 53c and the constant potential terminal 53a is defined as a region B.

  For example, when the first inter-terminal connection portion 59a is not provided in the region A (non-connected state), the shift determination input unit 55 becomes “Hi”, and it can be determined that the shift is an R shift. In addition, when the first inter-terminal connection unit 59a is provided in the region A (connection state), the shift determination input unit 55 becomes “Low”, and it can be determined that the shift is an L shift.

  On the other hand, when the second inter-terminal connection portion 59b is not provided in the region B, the liquid crystal type input portion 56 becomes “Hi”, and it can be determined that the liquid crystal material to be used is the liquid crystal X. When the second inter-terminal connection portion 59b is added to the region B, the liquid crystal type input portion 56 is “Low”, and it can be determined that the liquid crystal material to be used is the liquid crystal Y (or other than the liquid crystal X). As described above, by changing the electrical connection relationship between the region A and the region B, the shift direction and the type of the liquid crystal material can be specified.

  The first inter-terminal connection portion 59a and the second inter-terminal connection portion 59b may be a high-viscosity conductive material (conductive member), and have the same silver point as that of the vertical conductive terminal 26, for example. The inter-terminal connection portions 59a and 59b are provided so as to overlap the constant potential terminal 53a and the identification terminals 53b and 53c in a plane. As a result, the contact area can be increased, and the inter-terminal connection portions 59a and 59b can be reliably connected to each other. Furthermore, since the contact area increases, the electrical resistance can be reduced, and the electrical reliability can be improved.

  As described above, by determining the model information of the liquid crystal panel 11 using the driving IC 800, it becomes possible to optimally adjust settings (such as drive signals) according to the liquid crystal panel 11, and display quality (for example, color) Unevenness, etc.) can be improved. Hereinafter, a method for manufacturing the liquid crystal device 500 will be described.

<Method of manufacturing electro-optical device>
FIG. 7 is a flowchart illustrating a method of manufacturing a liquid crystal device as an electro-optical device in order of steps. Hereinafter, a method for manufacturing the liquid crystal device will be described with reference to FIG.

  First, a manufacturing method on the element substrate 12 side will be described. In step S11, TFT elements 33, terminals 53a, 53b, 53c, wirings 54a, 54b, 54c, and the like are formed on the element substrate 12 made of a quartz substrate or the like (terminal formation process). Specifically, the TFT element 33, the terminals 53a, 53b, and 53c, the wirings 54a, 54b, and 54c 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, inter-terminal connection portions 59a and 59b are formed. Specifically, in order to electrically connect the terminals to a region A between the first identification terminal 53b and the constant potential terminal 53a and a region B between the second identification terminal 53c and the constant potential terminal 53a. The inter-terminal connection portions 59a and 59b are formed (applied) as necessary for each model (applying selection step).

  The step of forming the inter-terminal connection portions 59a and 59b is preferably performed simultaneously with the formation of the upper and lower conductive terminals 26. Since it is only necessary to newly register the position information (area A and area B) to be formed using the same silver dot, such man-hours can be reduced. Specifically, since it is not necessary to introduce a new device or add a new process to form the inter-terminal connection portions 59a and 59b, the inter-terminal connection portions 59a and 59b can be efficiently formed. Can do.

  In step S34, 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. Thereafter, a step of connecting the liquid crystal panel 11 and the flexible substrate 600 is provided, and the liquid crystal device 500 is completed.

<Configuration of electronic equipment>
FIG. 8 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. 8, the liquid crystal projector 901 has a structure in which three liquid crystal modules employing the liquid crystal device 500 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.

  Since the liquid crystal projector 901 having such a configuration is corrected according to the model of the liquid crystal panel 11 through the liquid crystal module in which the above-described liquid crystal device 500 is employed, the liquid crystal projector 901 performs high-quality display. Can do. The above-described liquid crystal device 500 includes, in addition to the above-described liquid crystal projector 901, 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 device, an illumination It can be used for various electronic devices such as devices.

  As described above in detail, according to the liquid crystal device 500 of the present embodiment, the method for manufacturing the liquid crystal device 500, and the electronic apparatus, the following effects can be obtained.

  (1) According to the liquid crystal device 500 and the method of manufacturing the same of the present embodiment, the potential of the identification terminals 53b and 53c is confirmed, so that it can be connected to the constant potential terminal 53a via the inter-terminal connection portions 59a and 59b. In other words, the potential is constant (GND: “Low”), and it can be determined that the potential is not constant (“Hi”) if there is no inter-terminal connection portion 59a, 59b. In other words, the electrical connection state can be determined with or without the inter-terminal connection portions 59a and 59b. Therefore, compared with the case where a mark or the like is used to determine the model of the liquid crystal panel 11 constituting the liquid crystal device 500, a process of using a mask or a device for determining the mark is used to form the mark. It is not necessary to increase the number. In addition, since the model is determined based on the electrical connection state, it is possible to prevent an operation error such as a mark reading error from occurring.

  (2) According to the liquid crystal device 500 and the method of manufacturing the same according to the present embodiment, the inter-terminal connection portions 59a and 59b are formed so as to overlap the identification terminals 53b and 53c and the constant potential terminal 53a in plan view. The contact area with the portions 59a and 59b is increased, and the inter-terminal connection portions 59a and 59b can be reliably connected to each other. Furthermore, since the contact area increases, the electrical resistance can be reduced, and the electrical reliability can be improved.

  (3) According to the liquid crystal device 500 and the manufacturing method thereof of the present embodiment, the inter-terminal connection portions 59a and 59b are formed using the same conductive member (silver point) in the same process as the process of forming the vertical conductive terminal 26. be able to. Therefore, it is possible to suppress the addition of a new material or a significant increase in the number of manufacturing steps and manufacturing apparatuses, and the cost can be suppressed.

  (4) According to the electronic apparatus of the present embodiment, since the liquid crystal device 500 described above is provided, it is possible to correct the driving signal or the like according to the model, so that an electronic apparatus with high display quality is provided. can do.

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

(Modification 1)
As described above, the present invention is not limited to selectively providing the inter-terminal connection portions 59a and 59b to the two terminals of the first identification terminal 53b and the second identification terminal 53c. For example, only one identification terminal is used. Thus, the inter-terminal connection portion may be provided or may not be provided. Further, as shown in FIG. 9, the model of the liquid crystal panel may be determined using three or more identification terminals. FIG. 9 is a schematic plan view showing the structure of the identification unit of the modification.

  Specifically, as shown in FIG. 9, the first identification terminal 151a to the fourth identification terminal 151d are provided. A first constant potential terminal 152a is provided between the first identification terminal 151a and the second identification terminal 151b. A second constant potential terminal 152b is provided between the third identification terminal 151c and the fourth identification terminal 151d. Wirings 153a to 153e are electrically connected to the terminals 151a to 151d, 152a, and 152b, respectively. Note that the first constant potential terminal 152a and the second constant potential terminal 152b are connected to a common wiring 153e connected to GND.

  As shown in FIG. 9, for example, in the first identification wiring 153a (1), the first identification terminal 151a and the first constant potential terminal 152a are electrically connected via the first inter-terminal connection portion 154a. , “Low” state. In the second identification wiring 153b (2), the second identification terminal 151b and the first constant potential terminal 152a are not connected and are in the “Hi” state. In the third identification wiring 153c (3), the third identification terminal 151c and the second constant potential terminal 152b are electrically connected through the second inter-terminal connection portion 154b, and are in the “Low” state. In the fourth identification wiring 153d (4), the fourth identification terminal 151d and the second constant potential terminal 152b are not connected and are in the “Hi” state. In this way, the number of models for identification can be increased.

(Modification 2)
As described above, the present invention is not limited to the provision of the substantially circular inter-terminal connection portion 59 for conducting the identification terminals 53b and 53c and the constant potential terminal 53a. For example, as shown in FIG. When the third identification terminal 151c and the fourth identification terminal 151d are arranged across the constant potential terminal 152b and both terminals provide an inter-terminal connection portion, an ellipse extending from the third identification terminal 151c to the fourth identification terminal 151d is extended. A terminal-to-terminal connection portion 254b may be provided.

  FIG. 10 is a schematic plan view illustrating the structure of the identification unit according to the modification. According to this, since the contact area between the identification terminals 151c and 151d and the inter-terminal connection portion 254b is widened, the terminals can be reliably connected. Further, since the inter-terminal connection portion 254b can be provided by a continuous operation, the operation for applying can be simplified. In addition, since the two identification terminals 151c and 151d are arranged with the second constant potential terminal 152b interposed therebetween, the circuit space can be reduced.

(Modification 3)
As described above, the identification terminal 53 and the inter-terminal connection portion 59 are not limited to being provided on a flat surface on the element substrate 12. For example, as shown in FIGS. 11 and 12, the elements of the liquid crystal panels 311 a and 311 b A recess 301 may be provided in the substrate 312, and an identification terminal 351 and a constant potential terminal 352 may be provided in the recess 301.

  11 and 12 are schematic cross-sectional views showing the structure of the identification part of the liquid crystal panel. The liquid crystal panel 311 a illustrated in FIG. 11 includes, for example, two terminals of an identification terminal 351 and a constant potential terminal 352 provided in a recess 301 formed in the element substrate 312. An inter-connection portion 353a is provided. As a result, not only the lower surface of the inter-terminal connection portion 353a but also the side surface is in contact with the identification terminal 351 and the constant potential terminal 352, so that the inter-terminal connection portion 353a can be securely connected. Furthermore, since the contact area increases, the electrical resistance can be reduced, and the reliability of electrical connection can be improved.

  A liquid crystal panel 311b shown in FIG. 12 is provided with two terminals of an identification terminal 351 and a constant potential terminal 352 in a recess 301 formed in the element substrate 312 as in the liquid crystal panel 311a shown in FIG. . Further, the liquid crystal panel 311b shown in FIG. 12 is provided with an inter-terminal connection portion 353b up to a peripheral portion of the recess 301 (the surface of the element substrate 312) which is the surface of the element substrate 312. Thereby, it is possible to increase the contact area between the inter-terminal connection portion 353b, the identification terminal 351, and the constant potential terminal 352, and the reliability of electrical connection can be further increased.

(Modification 4)
As described above, the shift determination input unit 55 and the liquid crystal type input unit 56 are not limited to determining both at the same time. For example, only one of them may be determined. Moreover, it is not limited to discriminate | determine only both, You may make it discriminate | determine by adding other model information.

(Modification 5)
As described above, the model information of the liquid crystal panel 11 is not limited to being determined through the flexible substrate 600. For example, the model information is determined only by the liquid crystal panel 11 without using the flexible substrate 600. Also good. That is, pull-up and pull-down are provided on the liquid crystal panel 11. Further, a driving IC 800 is provided on the liquid crystal panel 11. According to this, since the model information can be read from the liquid crystal panel 11, the model information can be determined even in the state of the liquid crystal panel 11 alone that is not connected to the flexible substrate 600.

(Modification 6)
As described above, the three terminals 53a, 53b, and 53c are arranged side by side in a direction perpendicular to one side of the liquid crystal panel 11. However, the arrangement direction is not particularly limited, and for example, the terminals are arranged in a direction along one side of the liquid crystal panel 11. You may make it arrange.

(Modification 7)
As described above, the constant potential wiring 54a is not limited to being connected to GND, and may be connected to the power supply voltage (VDD), for example. In this case, the identification wirings 54b and 54c are connected to GND. Also in this case, the model can be identified by the “Hi” and “Low” signals.

(Modification 8)
As described above, the present invention is not limited to forming the identification terminal 53 and the identification wiring 54 in the A portion of the liquid crystal panel. For example, the terminal and the wiring for discrimination as described above are provided in the inspection circuit 25. It may be. Specifically, when model discrimination is performed, a silver dot is used to electrically connect to the inspection circuit 25, and furthermore, a terminal-to-terminal connection portion is formed in an identification portion provided in the inspection circuit 25. You may make it discriminate | determine.

(Modification 9)
As described above, the inter-terminal connection portions 59a and 59b are not limited to being performed at the same time as the formation of the vertical conduction terminals 26. For example, before the element substrate 12 and the counter substrate 13 are bonded together, the inter-terminal connection portions 59a. , 59b may be completed.

  DESCRIPTION OF SYMBOLS 11, 311a, 311b ... Liquid crystal panel as an electro-optical panel, 12, 312 ... Element substrate, 13 ... Counter substrate, 14 ... Sealing material, 15 ... Liquid crystal layer, 16 ... Liquid crystal inlet, 17 ... Sealing material, 18 ... Frame shading film, 19 ... display area, 21 ... pixel area, 22 ... data line driving circuit, 24 ... scanning line driving circuit, 25 ... inspection circuit, 26 ... vertical conduction terminal as vertical conduction part, 27 ... pixel electrode, 28 ... first alignment film, 31 ... common electrode, 32 ... second alignment film, 33 ... TFT element, 34 ... data line, 35 ... scan line, 36 ... capacitance electrode, 37 storage capacitor, 41 ... panel connection terminal, 46 ... FPC connection terminal, 51... Panel connection terminal, 52 .. external connection terminal, 53 a, 352... Constant potential terminal as second terminal, 53 b, 151 a... First identification terminal as first terminal, 53 c, 151 b. 1 terminal Second identification terminal, 54a ... constant potential wiring, 54b ... first identification wiring, 54c ... second identification wiring, 55 ... shift discrimination input unit, 56 ... liquid crystal type input unit, 57 ... pull-up resistor, 58 ... Power supply voltage 59, 254b ... terminal connection, 59a ... first terminal connection, 59b ... second terminal connection, 151c ... third identification terminal, 151d ... fourth identification terminal, 152a ... first constant potential Terminals 152b ... second constant potential terminals, 153a to 153e ... wiring, 301 ... recesses, 351 ... identification terminals, 500 ... liquid crystal device, 600 ... flexible substrate as circuit board, 700 ... frame, 800 ... driving IC, 901 Liquid crystal projector, 911R, 911G, 911B ... Light bulb, 912 ... Lamp unit, 913 ... Mirror, 914 ... Dichroic mirror, 915 ... Incident lens , 916 ... relay lens, 917 ... exit lens, 918 ... relay lens system, 919 ... dichroic prism 920 ... projection lens 921 ... screen.

Claims (8)

A first terminal for reading out model information;
A second terminal arranged in parallel with the first terminal and connected to a constant potential;
An inter-terminal connection unit for determining the model information by electrically connecting or disconnecting the first terminal and the second terminal;
An electro-optical device comprising: The electro-optical device according to claim 1,
An electro-optical panel provided with the first terminal and the second terminal;
A circuit board for electrically connecting the electro-optical panel and an external circuit;
An electro-optical device comprising: The electro-optical device according to claim 1 or 2,
The electro-optical device, wherein the inter-terminal connection portion is provided so as to overlap with at least one of the first terminal and the second terminal. The electro-optical device according to claim 2 or 3,
The electro-optic panel is provided with a recess,
At least a part of the first terminal and the second terminal is provided in the recess,
An electro-optical device, wherein at least a part of the inter-terminal connection portion is provided in the recess. The electro-optical device according to any one of claims 2 to 4,
The electro-optical panel having a pair of substrates;
The first terminal and the second terminal are provided on any one of the pair of substrates,
The electro-optical device, wherein the inter-terminal connection portion is formed using the same conductive member as the vertical conductive portion provided between the pair of substrates. Forming a first terminal for reading model information, and forming a second terminal that is arranged in parallel with the first terminal and connected to a constant potential; and
An application selection step of providing or not providing an inter-terminal connection for electrically connecting the first terminal and the second terminal;
A method for manufacturing an electro-optical device. The method of manufacturing an electro-optical device according to claim 6,
In the terminal forming step, the first terminal and the second terminal are formed on any one of the pair of substrates constituting the electro-optical panel,
The step of providing the inter-terminal connection portion includes forming the inter-terminal connection portion using a conductive member in the step of providing the vertical conductive portion between the pair of substrates.   An electronic apparatus comprising the electro-optical device according to any one of claims 1 to 5.

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