JP4857605B2 - Electro-optical device, method of manufacturing electro-optical device, and electronic apparatus - Google Patents

Description

  The present invention relates to an electronic device such as a personal computer or a mobile phone, an electro-optical device used in these electronic devices, and a method of manufacturing the electro-optical device.

  Conventionally, for example, a liquid crystal device or the like is used as an electro-optical device as a display device of an electronic apparatus such as a personal computer or a mobile phone. The liquid crystal device or the like includes, for example, a liquid crystal panel, an illumination lamp, a mold case that holds the liquid crystal panel, and a metal frame that fixes the liquid crystal panel. An opening for exposing the display area of the liquid crystal device is formed in the metal frame. A liquid crystal panel, an illumination lamp, and the like are housed in a metal frame or a mold case, and there is a problem that color unevenness occurs due to heat generated by the illumination lamp.

In order to solve this problem, a through hole is provided in the arrangement part of the illumination lamp of the mold case, and a heat radiating plate for dissipating the radiant heat of the illumination lamp to the outside of the mold case is provided in the through hole to increase the heat radiation efficiency. Thus, a technique for suppressing color unevenness of a liquid crystal device due to radiant heat is disclosed. (For example, refer to Patent Document 1).
JP-A-5-323315 (paragraphs [0013] and [0014], FIG. 1).

  However, in the above-described technique, for example, press working is performed without considering the relationship between the size of the polarizing plate provided in the display area of the liquid crystal panel and the size of the opening of the metal frame that exposes the display area of the liquid crystal device. Thus, there is a problem in that the opening is formed in the metal member that becomes the metal frame, and the burr formed on the periphery of the opening during press working contacts the polarizing plate, for example, during the assembling, and damages the polarizing plate.

  Further, for example, in order to remove dust attached to the polarizing plate, for example, during the manufacture of the liquid crystal device, it is necessary to clean the polarizing plate using a wipe cloth or the like. In the case of protruding, there is a problem that at the time of cleaning, burrs adhere to the wipe cloth, and cleaning is performed with the burrs attached to the wipe cloth, so that the polarizing plate is damaged by the burrs attached to the wipe cloth.

  The present invention has been made in view of the above-described problems, and an electro-optical device and an electro-optical device capable of preventing damage to a surface-side member such as a polarizing plate provided on the surface side having a display region of an electro-optical panel. It is an object of the present invention to provide a manufacturing method and an electronic apparatus including the electro-optical device.

In order to achieve the above object, an electro-optical device manufacturing method according to a main aspect of the present invention forms an opening by punching a metal member from one surface side of the metal member to the other surface side opposite to the one surface. And an electro-optical panel having a surface-side member having an area larger than an area of the opening and covering a display area, the one surface of the metal member facing the surface-side member, and the metal And a step of setting the metal member such that a peripheral edge portion of the opening of the member comes into contact with and overlaps the surface side member.

  In the present invention, the metal member is punched from one surface side of the metal member to the other surface side opposite to the one surface to form an opening, and one surface of the metal member is opposed to the surface of the electro-optical panel. And a step of setting the metal member so that the peripheral portion of the opening of the metal member overlaps the surface side member having an area larger than the area of the opening, which is provided so as to cover the display region of the surface of the electro-optical panel. Even if burrs are formed on the other surface side of the metal member in the step of forming the opening in the metal member, for example, the metal member so that the other surface side of the metal member is always located on the side opposite to the surface side member side of the metal member. The burr is prevented from projecting to the surface side member side of the metal member. For example, when the metal member is set on the electro-optical panel, the surface side member and the burr are prevented from coming into contact with each other. Prevent damage Rukoto can.

According to one aspect of the present invention, before the step of setting the metal member, after the step of peeling the protective film provided to protect the surface side member, and after the step of setting the metal member And a step of covering the surface side member exposed from the opening with a protective film . Further, after the step of setting the metal member, the protective film covering the surface side member exposed from the opening is provided to protect the surface side member before the step of setting the metal member. Further, it is the protective film. Thereby, since the process of peeling off the protective film provided so as to protect the surface side member is provided before the process of setting the metal member, the protective film is provided on the surface side until the process of setting the metal member. The member can be protected, and after the step of setting the metal member, the step of covering the surface side member exposed from the opening with the protective film is provided, so that the protective film is provided even after the step of setting the metal member. Thus, the surface side member can be protected. Note that the protective film is peeled off immediately before the step of setting the metal member, and the protective film is provided immediately after the step of setting the metal member, whereby damage to the surface side member can be more reliably prevented.

  According to an aspect of the present invention, the method further includes a step of forming a protrusion protruding from the other surface of the metal member near the opening after the step of forming the opening. Accordingly, after the step of forming the opening, there is further provided a step of forming a protrusion protruding from the other surface of the metal member near the opening. Therefore, when the metal member is set on the electro-optical panel, the protrusion is electro-optical. Abutting on the panel can prevent contact between the electro-optical panel and the peripheral edge of the opening, and for example, damage to the electro-optical panel due to contact between the electro-optical panel and a burr on the peripheral edge of the opening can be prevented.

  According to one aspect of the invention, the surface-side member is a polarizing plate for polarizing light transmitted through the electro-optical panel. As a result, the surface side member is a polarizing plate for polarizing the light transmitted through the electro-optic panel, so that contact between the polarizing plate and the burr at the peripheral edge of the opening of the metal member is prevented, and damage to the polarizing plate is prevented. Display quality can be improved.

An electro-optical device according to another aspect of the present invention includes an electro-optical panel having a surface including a display area, a surface-side member provided on the surface side so as to cover the display area, and the one surface from the one surface side. in Rukoto punched on the other side of the opposite, electrically comprises a metal member having an opening formed in a smaller area than the area of the front side member sag occurs in the one side of the punched surface, the optical In the apparatus, the one surface of the metal member is opposed to the surface of the electro-optical panel, and the periphery of the opening of the metal member is in contact with and overlaps the surface-side member. The metal member is set on a panel.

  In the present invention, an electro-optical panel having a surface including a display area, a surface-side member provided on the surface side so as to cover the display area, and a surface punched from one surface side to the other surface side opposite to the one surface Since the opening of the area smaller than the area of the side member is formed, and provided with a metal member set so that one surface faces the surface of the electro-optical panel and the peripheral edge of the opening overlaps the surface side member, For example, even when a burr is formed on the other surface side of the opening when the opening is formed by punching a metal member from one surface side to the other surface side, the formed burr may contact the surface side member. In addition, it is possible to prevent the surface side member from being damaged by the burr coming into contact with the surface side member.

  According to one form of this invention, the said metal member has a protrusion which protrudes from the said other surface of this metal member near the peripheral part of the said opening. As a result, the metal member has a protrusion protruding from the other surface of the metal member near the periphery of the opening, so that when the metal member is set on the electro-optical panel, the protrusion of the metal member is electro-optical. By making contact with the panel, it is possible to prevent the burr at the peripheral edge of the opening from coming into contact with the electro-optical panel and to prevent damage to the electro-optical panel.

  According to one aspect of the present invention, it further comprises a protective film provided so as to cover and peel off the surface side member. Thereby, since the protective film provided so that it can cover and peel off the surface side member is provided, for example, when the peripheral part of the opening of the metal member is set so as to overlap the surface side member, the metal member The protective film can prevent damage to the surface-side member before setting the electro-optical panel on the electro-optical panel, and when the metal member is set, the protective film is once peeled off and the surface-side member is provided with metal. After setting the member, by attaching a protective film so as to cover the surface side member again, the surface side member can be protected by the protective film even after the metal member is set. At this time, since the surface side member can be protected by the same protective film before and after setting the metal member, it is possible to prevent an increase in cost.

  According to one aspect of the invention, the surface-side member is a polarizing plate for deflecting light transmitted through the electro-optical panel. As a result, since the surface side member is a polarizing plate for deflecting light transmitted through the electro-optical panel, contact between the polarizing plate and, for example, a burr at the peripheral edge of the opening of the metal member is prevented, and damage to the polarizing plate is prevented. The display quality can be improved.

  An electronic apparatus according to another aspect of the invention includes the above-described electro-optical device.

  In the present invention, since an electro-optical device that can prevent damage to a surface-side member such as a polarizing plate provided outside the display surface of the electro-optical panel is provided, an electronic device having excellent display performance can be obtained. it can.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description of the embodiments, a liquid crystal device as an example of an electro-optical device, specifically, a reflective transflective active matrix liquid crystal device and an electronic apparatus using the liquid crystal device will be described. It is not limited to. In the following drawings, the scale and number of each structure are different from each other in order to make each configuration easy to understand.

  (First embodiment)

  1 is a schematic exploded perspective view of a liquid crystal device according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line AA of the liquid crystal device of FIG. 1 (before disassembly), and FIG. FIG. 4 is a plan view of the liquid crystal device (before disassembly) of FIG.

  (Configuration of liquid crystal device)

  For example, as shown in FIG. 1, the liquid crystal device 1 includes a liquid crystal panel 2 as an electro-optical panel, a circuit board 3 connected to the liquid crystal panel 2, an illumination device 4 that emits light to the liquid crystal panel 2, and a frame 5 that houses them. And a metal frame 6. Here, the liquid crystal device 1 is additionally provided with an accompanying mechanism (not shown) as necessary.

  As shown in FIGS. 1 and 2, the liquid crystal panel 2 includes a substrate 8 and a substrate 9 bonded together with a sealant 7, and an electro-optical material, for example, TN (Twisted Nematic) sealed in a gap between the substrates 8 and 9. A type liquid crystal 10 is provided.

  The substrate 8 and the substrate 9 are plate-like members made of a material such as glass or synthetic resin. A common electrode 11 is formed on the liquid crystal 10 side of the substrate 8. An overcoat layer 12 is provided on the liquid crystal 10 side of the common electrode 11, and an alignment film 13 is provided on the liquid crystal 10 side of the overcoat layer 12. On the opposite side of the substrate 8 from the liquid crystal 10 side, a polarizing plate 14 is provided so as to cover the display region B. The display area B has, for example, a rectangular shape that is substantially the same as the planar shape of the common electrode 11. The thickness of the polarizing plate 14 is, for example, about 0.25 mm to 0.3 mm. The polarizing plate 14 is used for polarizing the light transmitted through the liquid crystal panel 2.

  On the liquid crystal 10 side of the substrate 9, a gate electrode 15, a source electrode 16, a thin film transistor element T, and a pixel electrode 17 are formed.

  The gate electrode 15 is formed in the Y direction, and the source electrode 16 is formed in the X direction, for example, by a metal material such as aluminum. The source electrode 16 is formed, for example, as shown in FIG. 1, with the upper half routed to the left side and the lower half routed to the right side. Note that the numbers of the gate electrode 15 and the source electrode 16 can be appropriately changed according to the resolution of the liquid crystal device 1 and the size of the display area.

  The thin film transistor element T includes three terminals connected to the gate electrode 15, the source electrode 16, and the pixel electrode 17, respectively. The thin film transistor element T is connected to the pixel electrode 17, the gate electrode 15, and the source electrode 16. Thus, a current flows from the source electrode 16 to the pixel electrode 17 or vice versa when a voltage is applied to the gate electrode 15.

  An overcoat layer 18 is provided on the liquid crystal 10 side such as the gate electrode 15, and an alignment film 19 is provided on the liquid crystal 10 side of the overcoat layer 18.

  Further, the substrate 9 includes a region (hereinafter referred to as “projected portion”) 9 a that projects from the outer peripheral edge of the substrate 8. A driver IC 20 for driving the liquid crystal 10 is mounted on the surface of the protruding portion 9a. The driver IC 20 includes bumps 20a provided on the mounting surface side. Wirings 23 and 24 are provided so as to be drawn out from connection terminals 22 connected to the bumps 20a via an ACF (Anisotropic Conductive Film) 21, respectively. The wiring 23 is connected to the gate electrode 15, and the wiring 24 is connected to the source electrode 16. Wirings 26 are provided so as to be drawn out from the connection terminals 25 connected to the bumps 20a of the driver IC 20 via the ACF 21, respectively. A terminal 27 is provided at the end of the wiring 26.

  Further, as shown in FIG. 2, for example, a light shielding member 28 is attached to the side of the protruding portion 9a opposite to the mounting surface of the driver IC 20 so as to cover the entire protruding portion 9a. For example, the light shielding member 28 is configured to reflect light such as white on the substrate 9 side and white light on the light source 29 side described later. Thereby, even if light leaks from the light source 29, it is reflected by the light shielding member 28, and more light from the light source 29 can be supplied to the liquid crystal panel 2 without waste. Further, external light is also absorbed by the black surface and is not reflected to the driver IC 20, so that more stable liquid crystal driving can be obtained.

  As shown in FIG. 2, the circuit board 3 is connected to the projecting portion 9a via an adhesive such as ACF32. As illustrated in FIG. 1, the circuit board 3 includes a flexible base material 30 and wirings 31 provided on the flexible base material 30.

  The flexible substrate 30 is provided with a wiring 31 or the like, and the wiring 31 has, for example, one end connected to a terminal 27 via an ACF 32 and the other end connected to a light source 29 described later. .

  The illumination device 4 is a backlight unit that supplies light to the liquid crystal panel 2 as shown in FIGS. 1 and 2, for example, and includes a light source 29, a light guide plate 33, two prism sheets 34 and 35, a diffusion sheet 36, a reflection sheet. A sheet 37 and the like are provided.

  For example, a light emitting diode (hereinafter referred to as “LED” (Light Emitting Diode)) is used as the light source 29.

  For example, as shown in FIGS. 1 and 2, the light guide plate 33 is provided so that light from the light source 29 can be emitted to the liquid crystal panel 2.

  The two prism sheets 34 and 35, the diffusion sheet 36, and the reflection sheet 37 are formed in substantially the same size as shown in FIGS. 1 and 2, for example, a silver foil sheet or the like is used as the reflection sheet 37. Yes. A diffusion sheet 36 is arranged on the upper side in the Z direction of the reflection sheet 37 via the light guide plate 33, and two prism sheets 34 and 35 are arranged on the upper side in the Z direction of the diffusion sheet 36. The diffusion sheet 36 emits uniform light by diffusion, and the prism sheets 34 and 35 improve the luminance of light emitted from the diffusion sheet 36 and are opposite to the liquid crystal 10 side of the substrate 9 of the liquid crystal panel 2. Is applied to the polarizing plate 38 provided on the surface.

  For example, as shown in FIGS. 1 and 2, the frame 5 has a recess 39 formed on the inside so that the light source 29, the reflection sheet 37, the diffusion sheet 36, the two prism sheets 34 and 35, and the light guide plate 33 are accommodated. ing.

  For example, as shown in FIGS. 1, 2 and 4, the metal frame 6 has a substantially rectangular display opening 6A formed at the center thereof. The metal frame 6 is set so that its one surface 6 a faces the liquid crystal panel 2 and the peripheral edge 6 B of the opening 6 A overlaps the polarizing plate 14. The size of the opening 6 </ b> A is smaller than the size of the polarizing plate 14. For example, the inner dimensions a and b of the opening 6A in the X and Y directions are set smaller than the outer dimensions c and d of the polarizing plate 14 in the X and Y directions, respectively. The opening 6A is formed by punching from the one surface 6a side to the other surface 6b side on the opposite side. As shown in FIG. 3, the burr 56 or the like is not formed on the one surface 6 a side of the opening 6 </ b> A of the metal frame 6.

  (Manufacturing method of liquid crystal device)

  Next, a method for manufacturing the liquid crystal device 1 will be described with reference to the drawings.

  FIG. 5 is a flowchart showing manufacturing steps of the liquid crystal device 1 according to the first embodiment. In this embodiment, the manufacturing process (S6) of the metal frame 6 will be mainly described.

  First, the driver IC 20 is pressure-bonded and mounted on the substrate 9 via the ACF 21 (S1), the circuit board 3 is pressure-bonded and connected to the liquid crystal panel 2 via the ACF 32 (S2), and a mold (not shown) is applied. (S3).

  Next, the polarizing plate 14 is provided so as to cover the display region B of the liquid crystal panel 2, and the polarizing plate 38 is provided on the side opposite to the display region B side of the liquid crystal panel 2 (S4). As a result, the light transmitted through the display region B is transmitted through the polarizing plate 14.

  Subsequently, as shown in FIG. 1, the liquid crystal panel 2 and the like are set in the illumination device 4 as a backlight unit (S5).

  On the other hand, separately from these steps, for example, a metal plate as a material is punched from the one surface 6a side to the other surface 6b on the opposite side by using a press or the like, and an opening 6A is formed in advance to form the metal frame 6 in advance. (S6). The size of the opening 6A is made smaller than the size of the polarizing plate 14, for example. For example, the inner dimensions a and b of the opening 6A in the X and Y directions are made smaller than the outer dimensions c and d of the polarizing plate 14 in the X and Y directions, respectively. Thereby, when the metal frame 6 is covered so as to cover the liquid crystal panel 2, the peripheral portion of the opening 6 </ b> A overlaps the polarizing plate 14.

  Next, the process (S7) of setting the metal frame 6 on the liquid crystal panel 2 will be described.

  In the step of setting the metal frame 6 on the liquid crystal panel 2, one surface 6 a of the metal frame 6 faces the surface 8 a of the substrate 8 of the liquid crystal panel 2, and the gold frame is applied to the polarizing plate 14 provided in the display area B of the liquid crystal panel 2. The metal frame 6 is set so that the peripheral edge 6B of the opening 6A of 6 overlaps (S7). At this time, the polarizing plate 14 and the other surface 6 b near the opening 6 </ b> A of the metal frame 6 do not come into contact with each other or are not displaced due to contact, and the polarizing plate 14 is not damaged.

  Next, the polarizing plate 14 or the like is cleaned by wiping off dust or the like adhering to the polarizing plate 14 or the like with a wipe cloth or the like during the manufacture of the liquid crystal device 1 (S8).

  Subsequently, by performing a final inspection (lighting inspection), for example, after confirming that the polarizing plate 14 is not damaged (S9), for example, the liquid crystal device 1 is packed (S10). When the polarizing plate 14 is damaged, for example, the polarizing plate 14 and the metal frame 6 may be reattached.

  This is the end of the description of the method for manufacturing the liquid crystal device 1.

  Thus, according to this embodiment, the opening 6A is formed by punching out the metal plate to be the metal frame 6 from the one surface 6a side to the other surface 6b side (S6), and the surface 8a of the substrate 8 of the liquid crystal panel 2 is formed. The metal frame 6 is set so that the peripheral surface 6B of the opening 6A of the metal frame 6 overlaps the polarizing plate 14 that faces the one surface 6a of the metal frame 6 and covers the display area B of the liquid crystal panel 2. Therefore, even if a burr is formed on the other surface 6b side of the metal frame 6 in the step (S6) of forming the opening 6A in the metal frame 6, for example, it is opposite to the polarizing plate 14 side of the metal frame 6. The metal frame 6 is set so that the other surface 6b side of the metal frame 6 is always located on the side, and the burr can be prevented from projecting to the polarizing plate 14 side of the metal frame 6, for example, the metal frame 6 is set on the liquid crystal panel 2. Prevents the polarizing plate 14 and the burr from coming into contact with each other and prevents the polarizing plate 14 from being damaged. Door can be. Therefore, damage to the polarizing plate 14 can be prevented and display quality can be improved.

  Further, the liquid crystal device 1 includes a liquid crystal panel 2 including a substrate 8 having a surface 8a including the display region B, a polarizing plate 14 provided to cover the display region B on the surface 8a side of the substrate 8, and a surface 6a. An opening 6A is formed by punching from the side to the other surface 6b side so that one surface 6a faces the surface 8a of the substrate 8 of the liquid crystal panel 2 and the peripheral edge 6B of the opening 6A overlaps the polarizing plate 14. And a metal frame 6 provided. For this reason, for example, when the opening 6A is formed by punching a metal plate to be the metal frame 6 from the one surface 6a side to the other surface 6b side, the burr formed on the other surface 6b side of the opening 6A is the polarizing plate 14. It is possible to prevent the polarizing plate 14 from being damaged due to the burr coming into contact with the polarizing plate 14.

  (Second Embodiment)

  Next, a liquid crystal device according to a second embodiment of the present invention will be described. In the present embodiment, the same components and the like as those in the above embodiment are denoted by the same reference numerals, description thereof is omitted, and different portions are mainly described.

  6 is a schematic exploded perspective view of the liquid crystal device according to the second embodiment of the present invention, FIG. 7 is a cross-sectional view taken along the line C-C of the liquid crystal device of FIG. 6 (before disassembly), and FIG. FIG. 9 is a plan view of the liquid crystal device (before disassembly) of FIG.

  (Configuration of liquid crystal device)

  Unlike the first embodiment, the liquid crystal device 101 of this embodiment includes a polarizing plate 40 having an area smaller than the area of the opening 41, and the polarizing plate 40 covers the display region B of the liquid crystal panel 2. Is provided.

  The liquid crystal device 101 includes, for example, a liquid crystal panel 2, a circuit board 3 connected to the liquid crystal panel 2, an illumination device 4 that emits light to the liquid crystal panel 2, a frame 5 that accommodates them, and a metal frame 60, as shown in FIG. I have. Here, other accessory mechanisms (not shown) are attached to the liquid crystal device 101 as necessary.

  As shown in FIGS. 6 and 7, the liquid crystal panel 2 includes a substrate 8 and a substrate 9 bonded together via a sealing material 7, and an electro-optical material, for example, TN (Twisted Nematic) sealed in a gap between the substrates 8 and 9. A type liquid crystal 10 is provided.

  The substrate 8 and the substrate 9 are plate-like members made of a material such as glass or synthetic resin. A common electrode 11 is formed on the liquid crystal 10 side of the substrate 8. An overcoat layer 12 is provided on the liquid crystal 10 side of the common electrode 11, and an alignment film 13 is provided on the liquid crystal 10 side of the overcoat layer 12. The display area B has, for example, a rectangular shape that is substantially the same as the shape of the common electrode 11. On the opposite side of the substrate 8 from the liquid crystal 10 side, a polarizing plate 40 is provided so as to cover the display region B.

  The polarizing plate 40 is used for polarizing the light transmitted through the liquid crystal panel 2. The polarizing plate 40 is provided in the display area B of the liquid crystal panel 2 so that the polarizing plate 40 and the peripheral edge portion 41 </ b> A of the opening 41 do not overlap.

  For example, as shown in FIGS. 6 and 7, the frame 5 has a recess 39 formed on the inside so that the light source 29, the reflection sheet 37, the diffusion sheet 36, the two prism sheets 34 and 35, and the light guide plate 33 are accommodated. ing.

  For example, as shown in FIGS. 6, 7, and 9, the metal frame 60 has a substantially rectangular display opening 41 at the center thereof. The metal frame 60 is set so that the other surface 60 b opposite to the one surface 60 a faces the surface 8 a of the substrate 8 of the liquid crystal panel 2 and the peripheral edge portion 41 A of the opening 41 does not overlap the polarizing plate 40. Yes. A peripheral edge 41 </ b> A of the opening 41 is provided so as to surround the periphery of the polarizing plate 40. That is, as shown in FIG. 7, for example, the side surface 41 a of the opening 41 of the metal frame 6 faces the side surface 40 a of the polarizing plate 40 orthogonal to the surface 8 a of the substrate 8. The size of the opening 41 is larger than the size of the polarizing plate 40. For example, the inner dimensions e and f of the opening 41 in the X and Y directions are set larger than the outer dimensions h and k of the polarizing plate 40 in the X and Y directions, respectively. The opening 41 is formed by punching from the one surface 60a side to the other surface 60b side. On the one surface 60a side of the opening 41, no burr 66 or the like is formed as shown in FIG.

  (Manufacturing method of liquid crystal device)

  Next, a method for manufacturing the liquid crystal device 101 will be described with reference to the drawings. In this embodiment, since only the step (S6) for manufacturing the metal frame 60 is different from that in the first embodiment, the different steps will be mainly described.

  First, similarly to the first embodiment, for example, a polarizing plate 40 is provided so as to cover the display region B of the liquid crystal panel 2.

  On the other hand, separately from this step, for example, by using a press machine or the like, a metal plate as a material of the metal frame 60 is punched from the one surface 60a side to the other surface 60b side to form an opening 41 in advance. 60 is formed (S6). The size of the opening 41 is made larger than the size of the polarizing plate 40, for example. For example, the inner dimensions e and f of the opening 41 in the X and Y directions are made larger than the outer dimensions h and k of the polarizing plate 40 in the X and Y directions, respectively.

  Next, the process (S7) of setting the metal frame 60 on the liquid crystal panel 2 will be described.

  Similarly to the first embodiment, a polarizing plate 40 is provided so as to cover the display region B of the liquid crystal panel 2, and the other surface 60 b of the metal frame 60 faces the surface 8 a of the substrate 8 of the liquid crystal panel 2 and the polarizing plate 40. The metal frame 60 is set so that the peripheral edge 41A of the opening 41 of the metal frame 60 does not overlap (S7). That is, the metal frame 60 is set so that the peripheral edge portion 41 </ b> A of the opening 41 surrounds the polarizing plate 40.

  Next, the polarizing plate 40 and the like are cleaned by, for example, wiping off dust or the like adhering to the polarizing plate 40 or the like during the manufacture of the liquid crystal device 101 with a wipe cloth or the like (S8). At this time, no burr is formed on the peripheral portion 41A of the opening 41 on the one surface 60a side of the opening 41 of the metal frame 60, that is, outside the liquid crystal device 101. For example, the polarizing plate 40 is wiped with a wipe cloth. In some cases, the wipe cloth does not wind up the burr, and the burr wound on the wipe cloth can prevent the polarizing plate 40 from being damaged.

  Subsequently, by performing a final inspection (lighting inspection), for example, after confirming that the polarizing plate 40 is not damaged (S9), for example, the liquid crystal device 101 is packed (S10). When the polarizing plate 40 is damaged, for example, the polarizing plate 40 and the metal frame 60 may be reattached.

  This is the end of the description of the method for manufacturing the liquid crystal device 101.

  Thus, according to the present embodiment, the opening 41 is formed by punching the metal plate to be the metal frame 60 from the one surface 60a side to the other surface 60b side (S6), and the surface 8a of the substrate 8 of the liquid crystal panel 2 And the peripheral surface 41A of the opening 41 of the metal frame 60 around the polarizing plate 40 so as to cover the display area B of the surface 8a of the substrate 8 of the liquid crystal panel 2. Since the metal frame 60 is set so as to surround (S7), burrs are formed on the other surface 60b side of the metal frame 6 at the peripheral edge 41A of the opening in the step (S6) of forming the opening 41 in the metal frame 60. However, the metal frame 6 is set so as to prevent the burr from projecting to the one surface 60a side of the metal frame 6. For example, when the polarizing plate 40 is wiped using a wipe cloth or the like, the wipe cloth entrains the burr. Use a wipe cloth that prevents burrs By cleaning Te, it is possible to prevent the polarizing plate 40 may be damaged.

  Further, the liquid crystal panel 2 including the substrate 8 having the surface 8a including the display region B, the polarizing plate 40 provided to cover the display region B on the surface 8a side of the substrate 8, and the other surface from the one surface 60a side. An opening 41 is formed by punching on the 60b side, and the other surface 60b is opposed to the surface 8a of the substrate 8 of the liquid crystal panel 2, and the periphery of the polarizing plate 40 is set so that the peripheral edge of the opening 41 surrounds it. Since, for example, burrs are formed on the other surface 60b side of the metal frame 60 at the peripheral edge portion 41A of the opening 41, the burrs do not protrude on the one surface 60a side of the metal frame 60. For example, when wiping the polarizing plate 40 using a wipe cloth or the like, the wipe cloth prevents the burr from being caught, and cleaning using a wipe cloth not involving the burr prevents the polarizing plate 40 from being damaged. To do It can be.

  Furthermore, since the polarizing plate 40 having a smaller size than that of the polarizing plate 14 of the first embodiment can be used, the cost can be reduced, and in the case of the first embodiment. In comparison, since the metal frame 60 is set so as to overlap the substrate 8 without overlapping the polarizing plate 40, the thickness in the Z direction can be reduced.

  In the first and second embodiments, a protective film (not shown) provided to protect the polarizing plates 14 and 40 is provided before the step (S7) of setting the metal frames 6 and 60. By providing the step of peeling, the polarizing plates 14 and 40 can be protected by the protective film before the step (S7) of setting the metal frames 6 and 60, and the metal frames 6 and 60 are set. After the step (S7), the step of covering the polarizing plates 14 and 40 exposed from the openings 6A and 41 with a protective film is provided, and then the step (S7) of setting the metal frames 6 and 60 is performed. Also, the polarizing plates 14 and 40 can be protected. For example, an adhesive protective film can be used as the protective film. In addition, the protective film is peeled off immediately before the step (S7) of setting the metal frames 6 and 60, and the protective film is provided immediately after the step of setting the metal frames 6 and 60 (S7). Can be prevented more reliably. At this time, since the polarizing plates 14 and 40 can be protected by the same protective film before and after the metal frames 6 and 60 are set, it is possible to prevent an increase in cost.

  Further, as shown in FIG. 10, the metal frame 60 includes a protrusion 60 c that protrudes from the other surface 60 b near the peripheral edge 41 </ b> A of the opening 41, so that the metal frame 60 is set on the liquid crystal panel 2. The protrusion 60c of the metal frame 60 is in contact with the surface 8a of the substrate 8 of the liquid crystal panel 2, and the peripheral edge portion 41A of the opening 41 is prevented from contacting the surface 8a of the liquid crystal panel 2 substrate 8, Damage to the substrate 8 of the liquid crystal panel 2 can be prevented. By making the portion where the protrusion 60c contacts the surface 8a of the substrate 8 in an arc shape, the substrate 8 can be more effectively prevented from being damaged. The protrusion 60c can be manufactured using a press or the like that can form the protrusion 60c after the opening 41 is formed using a press or the like (S6), for example. The shape, number, and the like of the protrusions 60c are not particularly limited. By providing the protrusions 60c at a plurality of locations, it is possible to more stably prevent contact between the substrate 8 and the peripheral edge portion 41A of the opening 41, and reliably damage the substrate 8. Can be prevented.

  (Third embodiment / electronic device)

  Next, an electronic apparatus according to the third embodiment of the present invention including the above-described liquid crystal device 1 will be described.

  FIG. 11: is a schematic block diagram of the whole structure of the display control system of the electronic device concerning the 3rd Embodiment of this invention.

  The electronic device 300 includes, for example, a liquid crystal panel 2 and a display control circuit 390 as a display control system as shown in FIG. 11, and the display control circuit 390 includes a display information output source 391, a display information processing circuit 392, a power supply circuit 393, and the like. A timing generator 394 and the like are included.

  Further, the liquid crystal panel 2 has a drive circuit 361 including a driver IC 20 for driving the display area I and the like.

  The display information output source 391 includes a memory such as a ROM (Read Only Memory) or a RAM (Random Access Memory), a storage unit such as a magnetic recording disk or an optical recording disk, and a tuning circuit that tunes and outputs a digital image signal. It has. Further, the display information output source 391 is configured to supply display information to the display information processing circuit 392 in the form of a predetermined format image signal or the like based on various clock signals generated by the timing generator 394.

  The display information processing circuit 392 includes various well-known circuits such as a serial-parallel conversion circuit, an amplification / inversion circuit, a rotation circuit, a gamma correction circuit, and a clamp circuit, and executes processing of input display information to display the image. Information is supplied to the drive circuit 361 together with the clock signal CLK. The power supply circuit 393 supplies a predetermined voltage to each component described above.

  As described above, according to this embodiment, since the liquid crystal device 1 provided on the surface 8a of the substrate 8 of the liquid crystal panel 2 and capable of preventing damage to the polarizing plate 14 or the like is provided, an electronic apparatus having excellent display performance. Can be obtained.

  Specific electronic devices include touch panels equipped with liquid crystal devices in addition to mobile phones and personal computers, projectors, liquid crystal televisions and viewfinder types, video tape recorders with direct view of monitors, car navigation systems, pagers, electronic notebooks, A calculator, a word processor, a workstation, a video phone, a POS terminal, etc. are mentioned. Needless to say, for example, the above-described liquid crystal device 1 or the like can be applied as a display unit of these various electronic devices.

  Note that the electronic apparatus of the present invention is not limited to the above-described example, and it is needless to say that various modifications can be made without departing from the gist of the present invention. Moreover, you may combine said each embodiment in the range which does not change the summary of this invention.

  For example, in the above-described embodiment, the TFT type liquid crystal device 1 and the like have been described. However, the present invention is not limited to this. For example, a TFD (Thin Film Diode) type active matrix type or passive matrix type liquid crystal device may be used. Further, the present invention may be applied to various electro-optical devices such as a plasma display device, an electrophoretic display device, and a device using an electron-emitting device (Field Emission Display, Surface-Condition Electron-Emitter Display, etc.).

  Moreover, although the example in which the polarizing plate 14 is provided on the surface 8a side of the substrate 8 has been described in the above-described embodiment, the present invention is not limited thereto, for example, a retardation plate provided on the surface 8a side of the substrate 8 or the like. Can also be protected.

  Further, in the above-described embodiments, the liquid crystal device 1 provided with the COG liquid crystal panel 2 is exemplified, but the present invention is not limited to this. For example, the present invention is applied to a COF (Chip on Film) liquid crystal device. May be.

1 is a schematic exploded perspective view of a liquid crystal device according to a first embodiment of the present invention. It is AA sectional drawing of the liquid crystal device (before decomposition | disassembly) of FIG. It is explanatory drawing of the burr | flash of the opening part of a metal frame. FIG. 2 is a plan view of the liquid crystal device (before disassembly) of FIG. 1. 4 is a flowchart illustrating a manufacturing process of the liquid crystal device according to the first embodiment. It is a general | schematic disassembled perspective view of the liquid crystal device of 2nd Embodiment. It is CC sectional drawing of the liquid crystal device (before decomposition | disassembly) of FIG. It is explanatory drawing of the burr | flash of the opening part of a metal frame. FIG. 7 is a plan view of the liquid crystal device of FIG. 6. It is an expanded sectional view of the liquid crystal device provided with the metal frame provided with the protrusion in the vicinity of the opening. It is a schematic block diagram of the display control system of the electronic device of 3rd Embodiment which concerns on this invention.

Explanation of symbols

  B ... Display region, T ... Thin film transistor element, I ... Display region, 1 ... Liquid crystal device, 2 ... Liquid crystal panel, 3 ... Circuit board, 4 ... Illuminating device, 5 ... Frame, 6 ... Gold frame, 6a, 60a ... One side, 6b, 60b ... the other side, 6, 60 ... gold frame, 6A, 41 ... opening, 7 ... sealing material, 8, 9 ... substrate, 8a ... surface, 9a ... area, 10 ... liquid crystal, 11 ... common electrode, 12 , 18 ... Overcoat layer, 13, 19 ... Alignment film, 14, 38, 40 ... Polarizing plate, 15 ... Gate electrode, 16 ... Source electrode, 17 ... Pixel electrode, 20 ... Driver IC, 20a ... Bump, 21 ... ACF 22, 25, 27 ... terminals, 23, 24, 26, 31 ... wiring, 28 ... light-shielding member, 29 ... light source, 30 ... flexible substrate, 32 ... ACF, 33 ... light guide plate, 34, 35 ... prismatic 36 ... Diffusion sheet 37 ... Reflective sheet 39 ... Recess, 40a, 41a ... Side, 60c ... Projection 101 ... Liquid crystal device 300 ... Electronic device 361 ... Drive circuit 390 ... Display control circuit 391 Display information output source 392 Display information processing circuit 393 Power supply circuit 394 Timing generator

Claims (7)

Punching a metal member from one surface side of the metal member to the other surface opposite to the one surface to form an opening;
For an electro-optical panel having a surface-side member having an area larger than the area of the opening and covering a display region, the one surface of the metal member is opposed to the surface-side member, and the opening of the metal member A step of setting the metal member such that the peripheral edge of the metal member contacts and overlaps the surface side member;
An electro-optical device manufacturing method comprising: Before the step of setting the metal member, peeling the protective film provided to protect the surface side member;
After the step of setting the metal member, a step of covering the surface side member exposed from the opening with a protective film;
The method of manufacturing an electro-optical device according to claim 1, further comprising:   After the step of setting the metal member, the protective film covering the surface side member exposed from the opening is provided to protect the surface side member before the step of setting the metal member. 3. The method of manufacturing an electro-optical device according to claim 2, wherein the method is a protective film. Manufacturing method of the surface-side member is an electro-optical device according to any one of claims 1 to claim 3, characterized in that said a polarizing plate for polarizing the light that has passed through the electro-optical panel . An electro-optic panel having a surface including a display area;
A surface side member provided on the surface side so as to cover the display area;
In Rukoto stamped from one side to the other surface side opposite to said one surface, stamped metal member on which the sag on one side opening area smaller than the area of the front side member occurs is formed on the surface ,
An electro-optical device comprising:
The metal member is placed on the electro-optical panel so that the one surface of the metal member faces the surface of the electro-optical panel and a peripheral edge of the opening of the metal member contacts and overlaps the surface-side member. An electro-optical device in which is set. The electro-optical device according to claim 5 , wherein the surface-side member is a polarizing plate for polarizing light transmitted through the electro-optical panel. An electronic apparatus comprising the electro-optical device according to claim 5 .

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