JP2009086115A - Electrooptical apparatus, electrooptical panel, and method of manufacturing electrooptical apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrooptical panel preventing breakage of a substrate and is strong against impacts, an electrooptical apparatus provided with the electrooptical panel, and a method of manufacturing the electrooptical apparatus. <P>SOLUTION: Since a liquid crystal device 1 includes a frame 4 which holds three side edge parts 2a, 2b, and 2c of substrates 8 and 9, three side edge parts 2a, 2b, and 2c of substrates 8 and 9 can be directly reinforced by the frame 4 when an impact is applied to the liquid crystal device 1, so that the substrates 8 and 9 are prevented from being bent and are prevented from being broken to prevent breakage of the liquid crystal device 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electro-optical device, an electro-optical panel, and an electro-optical device manufacturing method used for a personal computer, a mobile phone, and the like.

  Conventionally, for example, in a liquid crystal display device, as an example of an electro-optical device, a flexible printed circuit board is connected to a liquid crystal display panel in which liquid crystal is held between two glass substrates, and the flexible printed circuit board is folded and accommodated in a case. It is manufactured. However, the electronic device provided with such a liquid crystal display device has a problem that the liquid crystal display panel is bent or damaged by dropping.

In order to solve this problem, a technique is disclosed in which a liquid crystal display panel and a light guide plate disposed below the liquid crystal display panel are sandwiched between an upper frame and an intermediate frame, and the upper frame and the liquid crystal display panel are adhered to each other. Yes. (For example, refer to Patent Document 1).
Japanese Patent Laying-Open No. 2005-115335 (paragraph [0010], FIGS. 1 and 2).

  However, in the above-described technology, the liquid crystal display panel is not directly held in a frame, and thus, for example, an end user uses a mobile phone equipped with a liquid crystal display panel (LCD (Liquid Crystal Display) module). When dropped, there is a problem that it is considered that the liquid crystal display panel is bent between the upper frame and the intermediate frame, and the glass substrate or the IC is destroyed.

  The present invention is made in view of the above-described problems, and provides an electro-optical panel that can prevent damage to a substrate and is resistant to impact, an electro-optical device including the electro-optical panel, and a method for manufacturing the electro-optical device. With the goal.

  In order to achieve the above object, an electro-optical device according to a main aspect of the present invention includes first and second substrates holding an electro-optical material, and at least one of the first and second substrates. And a reinforcing member that directly holds at least one edge.

  Here, “directly” means, for example, a case where the reinforcing member holds the first and second substrates via the adhesive without passing through the polarizing plate, the light guide plate, the reflecting plate, or the like, or the reinforcing member is the light guide plate. The case where the polarizing plate laminated | stacked on the 1st and 2nd board | substrate and the 1st and 2nd board | substrate is hold | maintained through an adhesive agent without passing through a reflector etc. is said.

  For example, when the first and second substrates and the light guide plate are reinforced so as to be covered with a metal frame from the outside, the first and second substrates are bent and damaged when an impact is applied. In the present invention, the reinforcing member that holds at least one edge portion of at least one of the first and second substrates is provided, so that when the impact is applied to the electro-optical device, the reinforcing member can At least one edge of at least one of the first and second substrates can be directly held, and at least one of the first and second substrates is prevented from being bent; It is possible to prevent at least one of the first and second substrates from being damaged.

  According to an aspect of the present invention, the first and second substrates have a rectangular shape, and the reinforcing member extends from at least one edge to the other two edges. Yes. For example, the shape of the reinforcing member has a substantially U-shape along three edge portions of the first and second substrates. As a result, when an impact is applied to the electro-optical device, the first and second substrates can be reinforced more integrally and reliably than when the reinforcing member has a seam, for example. Damage to the substrate can be prevented, and damage to the electro-optical device can be prevented more reliably. Further, at the time of manufacture, for example, the first and second substrates can be easily set by sliding into the U-shaped recess of the reinforcing member.

  According to an aspect of the present invention, the first and second substrates have a rectangular shape, and the reinforcing member is provided on each of three edge portions of the first and second substrates. Yes. For example, the reinforcing member may have three reinforcing members that are respectively along the three edge portions of the first and second substrates. In this case, for example, the first and second substrates are separately reinforced by three reinforcing members to prevent the first and second substrates from being bent when an impact is applied to the electro-optical device. Breakage of the electro-optical device can be prevented. Moreover, at the time of manufacture, each edge part of the 1st and 2nd board | substrate can be easily set by inserting in a reinforcement member. At this time, for example, when there are protrusions on the side surfaces of the first and second substrates, the reinforcing member can be provided avoiding the protrusions. As a result, the reinforcing member can be disposed so as to contact the side surfaces of the first and second substrates, and the electro-optical device can be reduced in size.

  According to an aspect of the present invention, the reinforcing member is provided on a surface of the first substrate opposite to the electro-optic material side and on a side of the second substrate opposite to the electro-optic material side. It has a substantially U-shaped cross section that holds the surface and the side surfaces of the first and second substrates. Thus, since the reinforcing member has a substantially U-shaped cross section, the first and second substrates can be firmly held and the strength of the reinforcing member can be improved as compared with a flat plate or the like. . Therefore, for example, when an impact is applied from the outside, the reinforcing member is hardly deformed. As a result, when an impact is applied to the electro-optical device, the edge portion is securely held firmly by the reinforcing member that is difficult to deform, and the first and second substrates are more reliably prevented from bending. The first and second substrates can be more reliably prevented from being damaged.

  According to an aspect of the present invention, the reinforcing member includes at least the first of the surface of the first substrate opposite to the electro-optic material side and the side surfaces of the first and second substrates. A first reinforcing member having a substantially L-shaped cross-section that holds the side surface of the substrate, or a surface of the second substrate opposite to the electro-optic material side, and the side surfaces of the first and second substrates And a first reinforcing member having a substantially L-shaped cross section that holds at least the side surface of the second substrate. In this case, since the first reinforcing member has a substantially L-shaped cross section, the strength of the reinforcing member can be improved compared to the case of a flat plate or the like. Therefore, for example, when an impact is applied from the outside, the first reinforcing member is hardly deformed. As a result, the first and second substrates are more reliably prevented from being bent by the first reinforcing member that is not easily deformed when an impact is applied to the electro-optical device. Can be more reliably prevented from being damaged. In addition, since the first reinforcing member having a substantially L-shaped cross section can be formed simply by bending, the flatness of the two flat portions constituting the L-shaped corners can be easily ensured. As a result, when the first reinforcing member is set on the first and second substrates, the corners of the first or second substrate can be easily brought into contact with the L-shaped corners of the first reinforcing member. The electro-optical device can be manufactured reliably and easily.

  According to an aspect of the present invention, the apparatus further includes a flexible substrate connected to one edge portion of the first or second substrate, and the reinforcing member is connected to the flexible substrate. And a second reinforcing member having a substantially L-shaped cross section for reinforcing the surface of the first or second substrate opposite to the electro-optical material side and the side surface of the one edge portion. Accordingly, the flexible substrate is connected to one edge portion of the first or second substrate, and the second reinforcement having a substantially L-shaped cross section is formed on the one edge portion to which the flexible substrate is connected. Since it can be reinforced by the member, the electro-optical device can be more reliably prevented from being damaged.

  According to an aspect of the present invention, the first and second substrates have protrusions provided to protrude from the edge portions of the first and second substrates, and the reinforcing member is , Arranged to avoid the protrusions. Accordingly, the reinforcing member can be provided closer to the edge portions (side surfaces) of the first and second substrates, so that the electro-optical device can be reduced in size. For example, in order to inject an electro-optical material between the first and second substrates, injection ports are formed on the side surfaces of the first and second substrates. In this case, the projecting portion is a sealing portion provided so as to project from the side surfaces of the first and second substrates in order to seal the injection port.

  According to an aspect of the present invention, the reinforcement further includes first and second polarizing plates disposed on surfaces of the first and second substrates opposite to the electro-optical material side. The member holds the polarizing plate overlapping the edge portion. Thereby, the first and second substrates can be held by the reinforcing member together with the polarizing plate. Therefore, for example, when connecting the reinforcing member and the polarizing plate or between the reinforcing member and the side surfaces of the first and second substrates via an adhesive, the bonding area is increased by the thickness of the polarizing plate. Therefore, the adhesive strength can be improved.

  According to an aspect of the present invention, the reinforcement further includes first and second polarizing plates disposed on surfaces of the first and second substrates opposite to the electro-optical material side. The member holds the first and second substrates without holding the polarizing plate. As a result, the reinforcing member holds the first and second substrates without going through the first and second polarizing plates, for example, so that the thickness of the first and second polarizing plates is equivalent to the thickness of the electro-optical device. The thickness can be reduced.

  An electro-optical panel according to another aspect of the present invention includes first and second substrates that hold an electro-optical material, and at least one edge of at least one of the first and second substrates. And a reinforcing member that holds directly.

  For example, when the electro-optical panel and the light guide plate having the first and second substrates are reinforced so as to be covered with a metal frame from the outside, the first and second substrates are bent and damaged when an impact is applied. To do. In the present invention, since the electro-optical panel includes a reinforcing member that holds at least one edge of at least one of the first and second substrates, the electro-optical panel is reinforced when an impact is applied thereto. The member can directly reinforce at least one edge of at least one of the first and second substrates, and at least one of the first and second substrates bends. And at least one of the first and second substrates can be prevented from being damaged. Therefore, an electro-optical panel having excellent reliability can be obtained.

  According to another aspect of the present invention, there is provided a method of manufacturing an electro-optical device, the step of holding an electro-optical material by first and second substrates, and at least one of at least one of the first and second substrates. The step of reinforcing the first and second substrates by directly holding the two edge portions by the reinforcing member, and setting the light guide plate so as to overlap the reinforced first and second substrates A process.

  For example, when the first and second substrates and the light guide plate are reinforced so as to be covered with a metal frame from the outside, the first and second substrates are bent and damaged when an impact is applied. In the present invention, the first and second substrates are reinforced and reinforced by directly holding at least one edge portion of at least one of the first and second substrates by the reinforcing member. The light guide plate can be easily set so as to overlap the first and second substrates. That is, the first and second substrates holding the electro-optical material can be easily set on the reinforcing member. In addition, when an impact is applied to the electro-optical device, at least one edge portion of at least one of the first and second substrates can be directly reinforced by the reinforcing member. It is possible to prevent the device from being destroyed. Therefore, an electro-optical device with excellent reliability can be obtained.

  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 a method of manufacturing the liquid crystal device will be described, but the present invention is not limited thereto. It is not a thing. 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 partially exploded perspective view of the liquid crystal device of the first embodiment, FIG. 2 is a perspective view from the front side of the liquid crystal panel held in the frame of FIG. 1, and FIG. 3 is a liquid crystal held in the frame of FIG. FIG. 4 is a perspective view of the liquid crystal panel of FIG. 2.

  (Configuration of liquid crystal device)

  For example, as shown in FIG. 1, the liquid crystal device 1 emits light to a liquid crystal panel 2, a circuit board 3 connected to the liquid crystal panel 2, a frame 4 as a reinforcing member that holds and reinforces the liquid crystal panel 2, and the liquid crystal panel 2. An illumination device 5 is provided. Here, the liquid crystal device 1 is additionally provided with an accompanying mechanism (not shown) as necessary.

  As shown in FIGS. 2, 3 and 4, the liquid crystal panel 2 has a rectangular shape, and three edge portions 2a, 2b and 2c (portions shown by hatching in FIG. 4) of the liquid crystal panel 2 are described later. 4 is held so as to be covered.

  As shown in FIG. 4, the liquid crystal panel 2 includes a substrate 8 and a substrate 9 bonded via a seal material 7, and an electro-optical material, for example, a TN (Twisted Nematic) type sealed in a gap between the substrates 8 and 9. It has a liquid crystal.

  The substrate 8 and the substrate 9 are made of a material such as glass or synthetic resin. A common electrode 11 is formed on the liquid crystal side of the substrate 8. A polarizing plate (not shown in FIG. 4) is provided on the surface of the substrate 8 opposite to the liquid crystal side 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. A non-display area C is provided around the display area B of the liquid crystal panel 2 so as to correspond to, for example, the sealing material 7.

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

  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. For example, as shown in FIG. 4, the source electrode 16 is formed such that the upper half is routed to the left side and the lower half is 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. 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.

  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. On the surface of the projecting portion 9a, a driver IC 20 for driving the liquid crystal is mounted as shown in FIG. The driver IC 20 includes bumps (not shown) provided on the mounting surface side, and wirings 23 and 24 are provided on the bumps 9 from the terminals connected to these bumps via an ACF (Anisotropic Conductive Film) (not shown). It has been. The wiring 23 is connected to the gate electrode 15, and the wiring 24 is connected to the source electrode 16. In the overhanging portion 9a, wirings 26 are respectively provided on the substrate 9 from terminals (not shown) connected to bumps (not shown) of the driver IC 20 via ACF (not shown).

  As shown in FIG. 4, the circuit board 3 is connected to the projecting portion 9a through an adhesive such as ACF (not shown). The circuit board 3 includes a flexible base material 30 and wirings 31 provided on the flexible base material 30. The wirings 31 are connected to the wirings 26 via an ACF (not shown).

  As shown in FIGS. 2 and 3, the frame 4 holds the three edge portions 2 a, 2 b, and 2 c of the liquid crystal panel 2 shown in FIG. 4 and reinforces the substrate 8 and the substrate 9. The edge portions 2a, 2b, and 2c are edge portions indicated by hatching in FIG. 4 along the three sides different from the one side 9b of the protruding portion 9a of the liquid crystal panel 2, as shown in FIG. As shown in FIG. 4, the edge 2a is positioned in parallel with one side 9c of the liquid crystal panel 2, the edge 2b is positioned in parallel with one side 9d of the liquid crystal panel 2, and the edge 2c is liquid crystal. It is located in parallel with one side 9e of the panel 2. As shown in FIGS. 2 and 3, the frame 4 has a seamless shape that holds the three edge portions 2 a, 2 b, and 2 c of the substrate 8 and the substrate 9. The frame 4 is made of a metal material such as stainless steel, for example.

  FIG. 5 is a cross-sectional view taken along the line AA of the liquid crystal panel 2 held by the frame 4 of FIG.

  The frame 4 has a substantially U-shaped cross section so as to cover and hold and reinforce the three edge portions 2a, 2b and 2c of the liquid crystal panel 2. The frame 4 includes a polarizing plate 33 disposed on the surface opposite to the liquid crystal side of the substrate 8 through the adhesive 32 with the three edge portions 2a, 2b and 2c of the liquid crystal panel 2 and the liquid crystal side of the substrate 9 Is sandwiched without the polarizing plate 34 disposed on the opposite surface. The liquid crystal panel 2 is fixed to the frame 4 by interposing the adhesive 32 between the frame 4 and the three edge portions 2 a, 2 b and 2 c of the liquid crystal panel 2. As illustrated in FIGS. 2 and 3, the frame 4 includes two drawing portions 4 a that accommodate the two corners L <b> 1 and L <b> 2 illustrated in FIG. 4 of the liquid crystal panel 2. Instead of using the adhesive 32 or in addition to the adhesive 32, a double-sided adhesive tape or the like may be used.

  The illumination device 5 is a backlight unit that supplies light to the liquid crystal panel 2 as shown in FIG. 1, for example, and includes a light guide plate 35, two prism sheets 36 and 37, a diffusion sheet 38, a reflection sheet 39, and a circuit board 3. And a light source (not shown) such as a light emitting diode (LED Light Emitting Diode).

  A diffusion sheet 38 is disposed on the upper side in the Z direction of the reflection sheet 39 via a light guide plate 35, and two prism sheets 36 and 37 are disposed on the upper side in the Z direction of the diffusion sheet 38.

  The two prism sheets 36 and 37, the diffusion sheet 38, and the reflection sheet 39 are formed in substantially the same size as shown in FIG. For example, a silver foil sheet or the like is used for the reflection sheet 39. For example, the light guide plate 35 emits light from a light source (not shown) to the liquid crystal panel 2 side. The diffusion sheet 38 emits uniform light by diffusion, and the prism sheets 36 and 37 improve the luminance of the light emitted from the diffusion sheet 38 and provide a polarizing plate 34 (provided on the substrate 9 of the liquid crystal panel 2). (See FIG. 5).

  (Manufacturing method of the liquid crystal device 1)

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

  FIG. 6 is a flowchart showing a manufacturing process of the liquid crystal device 1 of the first embodiment. In this embodiment, the manufacturing process (S3) of the frame 4 and the process (S4) of setting the liquid crystal panel 2 on the frame 4 will be mainly described.

  First, the substrate 8 and the substrate 9 are bonded together via the sealing material 7, and the liquid crystal panel 2 is manufactured by injecting liquid crystal or the like, and the circuit board 3 is manufactured (S1).

  Next, the wiring 26 of the liquid crystal panel 2 and the wiring 31 of the circuit board 3 are thermocompression bonded via an ACF (not shown) (S2).

  Next, for example, the adhesive 32 is applied to the recessed portion of the frame 4, and the liquid crystal panel 2 is inserted into the frame 4 from the side opposite to the driver IC 20 side and set (S4). As a result, the three edge portions 2 a, 2 b and 2 c of the liquid crystal panel 2 are held and reinforced by the frame 4. Thereafter, for example, polarizing plates 33 and 34 are attached so as not to overlap the edge portions 2a, 2b and 2c of the liquid crystal panel 2 (see FIG. 5). Note that the polarizing plate 33 is set before the liquid crystal panel 2 is set on the frame 4. , 34 may be pasted.

  Then, the two prism sheets 36 and 37, the diffusion sheet 38, the light guide plate 35, the reflection sheet 39, etc. are set, the circuit board 3 is bent, and the other end of the circuit board 3 is bonded to the reflection sheet 39, for example. The liquid crystal device 1 is manufactured (S5).

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

  As described above, according to the present embodiment, since the frame 4 that holds the three edge portions 2a, 2b, and 2c of the substrate 8 and the substrate 9 is provided, the three edges of the substrate 8 and the substrate 9 are provided by the frame 4. The portions 2a, 2b and 2c can be directly reinforced, and when the liquid crystal device 1 is subjected to an impact, the substrate 8 and the substrate 9 are prevented from being bent and the substrate 8 and the substrate 9 are prevented from being damaged. Thus, the liquid crystal device 1 can be prevented from being broken.

  The frame 4 has a seamless shape that holds the three edge portions 2 a, 2 b, and 2 c of the substrate 8 and the substrate 9. Thereby, when an impact is applied to the liquid crystal device 1, the substrate 8 and the substrate 9 are more integrally and reliably reinforced, for example, compared to a case where there is a seam in the frame, and damage to the substrate 8 and the substrate 9 is prevented. As a result, the liquid crystal device 1 can be more reliably prevented from being damaged. Further, at the time of manufacturing, for example, the substrate 8 and the substrate 9 can be easily set by sliding into the recess of the frame 4.

  Further, as shown in FIG. 5, the frame 4 has a substantially U-shaped cross section that holds the side edges of the substrates 8 and 9, and the side edges of the substrates 8 and 9. Yes. Thus, since the frame 4 has a substantially U-shaped cross section, the substrate 8 and the substrate 9 can be firmly held and the strength of the frame 4 can be improved as compared with a flat plate or the like. Therefore, for example, when an impact is applied from the outside, the frame 4 is hardly deformed. As a result, when an impact is applied to the liquid crystal device 1, the edge portion is securely held by the frame 4 that is not easily deformed, and the substrate 8 and the substrate 9 are more reliably prevented from being bent. It can prevent more reliably that the board | substrate 9 is damaged.

  Further, as shown in FIG. 5, the polarizing plates 33 and 34 disposed on the surfaces of the substrate 8 and the substrate 9 opposite to the liquid crystal side are arranged so that they do not overlap with the edge portions 2a, 2b and 2c. It is provided in a different area from the parts 2a, 2b and 2c. Further, as shown in FIG. 5, the frame 4 does not sandwich the polarizing plates 33 and 34, but sandwiches the edge portions 2 a, 2 b and 2 c of the substrate 8 and the substrate 9 via an adhesive 32. As a result, the frame 4 directly holds the three edge portions 2a, 2b and 2c of the substrate 8 and the substrate 9 via the adhesive 32, so that the thickness of the polarizing plates 33 and 34 corresponds to the liquid crystal device. The thickness of 1 can be reduced.

  In the above embodiment, as shown in FIG. 5, the frame 4 does not hold the polarizing plates 33 and 34 but holds the substrate 8 and the substrate 9 via the adhesive 32. However, it is not limited to this.

  FIG. 7 is a cross-sectional view showing a state in which the liquid crystal panel 2 to which the polarizing plates having different shapes are attached is held by the frame 4.

  As shown in FIG. 7, polarizing plates 33 ′ and 34 ′ disposed on the surface of the substrate 8 and the substrate 9 opposite to the liquid crystal side are provided so as to overlap the edge portions 2 a, 2 b and 2 c. Yes. As shown in FIG. 7, the frame 4 sandwiches polarizing plates 33 ′ and 34 ′ that overlap the edge portions 2 a, 2 b, and 2 c with an adhesive 32 interposed therebetween. Thereby, the board | substrate 8 and the board | substrate 9 can be hold | maintained with the flame | frame 4 with polarizing plate 33 ', 34'. Therefore, for example, the adhesive can be connected between the frame 4 and the polarizing plates 33 ′ and 34 ′ and between the frame 4 and the side surfaces of the substrate 8 and the substrate 9. In this case, since the adhesion area can be increased by the thickness of the polarizing plate 33 ′ and the polarizing plate 34 ′, the adhesive strength can be improved. As the display area B increases, the width H of the edge portions 2a, 2b, and 2c tends to decrease. In this case, the bonding strength can be effectively improved by increasing the bonding area corresponding to the thickness of the polarizing plates 33 ′ and 34 ′.

  (Second Embodiment)

  Next, a second embodiment according to the present invention will be described with reference to the drawings. In the following description of the present embodiment, the same components and the like as those of the above-described embodiment will be denoted by the same reference numerals, the description thereof will be omitted, and different portions will be mainly described.

  FIG. 8 is a perspective view from the front of the liquid crystal panel 2 held by the frame of the second embodiment, and FIG. 9 is a perspective view from the back of the liquid crystal panel 2 held by the frame of FIG. 8 and FIG. 9 is attached to the substrate 8 and the substrate 9 as shown in FIG.

  As shown in FIG. 8, the present embodiment is different in that frames 4A, 4B, and 4C are provided instead of the frame 4 of the first embodiment, so that the frames 4A, 4B, and 4C will be mainly described.

  As shown in FIG. 8, the frames 4A, 4B, and 4C sandwich three edge portions 2a, 2b, and 2c that are different from the edge portion on the protruding portion 9a side of the liquid crystal panel 2, respectively.

  As shown in FIGS. 8 and 9, for example, the frame 4 </ b> A sandwiches one edge portion 2 a orthogonal to one side 9 b of the protruding portion 9 a of the liquid crystal panel 2 via an adhesive that is not shown. The cross-sectional shape of the frame 4A is a U-shape as can be seen from the end surface Sa shown in FIGS. That is, the edge portion 2a of the liquid crystal panel 2 is fitted into the recess of the frame 4A and fixed through the adhesive.

  As shown in FIGS. 8 and 9, for example, the frame 4 </ b> B sandwiches the edge portion 2 b on the opposite side of the protruding portion 9 a side of the liquid crystal panel 2 via an adhesive (not shown). The cross-sectional shape of the frame 4B is a U-shape as can be seen from the end surface Sb shown in FIG. That is, the edge portion 2b of the liquid crystal panel 2 is fitted into the recess of the frame 4B and fixed through the adhesive.

  As shown in FIG. 9, the frame 4 </ b> B is disposed so as to avoid the sealing portion 40 provided so as to protrude from the side surfaces of the substrate 8 and the substrate 9 in order to seal the injection port for injecting liquid crystal. ing. The frame 4 </ b> B is arranged with almost no gap with respect to the side surfaces of the substrate 8 and the substrate 9.

  The frame 4C is the same as the frame 4A except that the other side edge 2c orthogonal to the one side 9b of the projecting portion 9a of the liquid crystal panel 2 is sandwiched, and thus the description thereof is omitted.

  In the present embodiment, an example in which the frame 4A reinforces the edge portion 2a via an adhesive without using a polarizing plate is shown. However, the edge portion 2a may be reinforced via a polarizing plate or an adhesive (not shown) provided on the surfaces of the substrate 8 and the substrate 9 (the same applies to the other frames 4B and 4C).

  The frames 4A, 4B, and 4C are provided apart from each other, but may be arranged so that a part thereof is adjacent.

  (Manufacturing method of liquid crystal device)

  Since the manufacturing method of the liquid crystal device of this embodiment differs from the first embodiment in the manufacturing process of the frames 4A, 4B and 4C and the process of setting the frames 4A, 4B and 4C on the liquid crystal panel 2, these The process will be mainly described.

  First, the liquid crystal panel 2 and the circuit board 3 are manufactured in the same manner as in the first embodiment (S1), and thermocompression bonding is performed through an ACF (not shown) to connect the wiring 26 and the wiring 31 (S2).

  Next, the frames 4A, 4B and 4C are manufactured. For example, the frame 4A is manufactured by drawing a stainless steel plate so that the cross section becomes a U shape. The frame 4B is manufactured by drawing another stainless steel plate so that the cross-section becomes U-shaped, and the frame is made U-shaped by drawing another stainless steel plate. 4C is manufactured.

  Next, an adhesive (not shown) is applied to the concave surface of the frame 4A, the frame 4A is fitted so as to sandwich the edge 2a of the liquid crystal panel 2, and an adhesive (not shown) is applied to the concave surface of the frame 4B. The frame 4B is fitted so as to sandwich the edge 2b of the liquid crystal panel 2, and an adhesive (not shown) is applied to the concave surface of the frame 4C so as to sandwich the edge 2c of the liquid crystal panel 2. The frame 4 </ b> C is fitted into the frame. In addition, you may make it use a double-sided adhesive tape instead of an adhesive agent.

  As a result, the three edge portions 2a, 2b and 2c of the liquid crystal panel 2 are held between the frames 4A, 4B and 4C. Since the following steps are almost the same as those in the first embodiment, description thereof will be omitted.

  As described above, according to the present embodiment, the frames 4A, 4B, and 4C hold the three edge portions 2a, 2b, and 2c of the substrate 8 and the substrate 9 via the adhesive (not shown), respectively. Reinforce. In this case, for example, the three edges 4a, 2b, and 2c of the substrate 8 and the substrate 9 are reinforced separately by the three frames 4A, 4B, and 4C, respectively, and when the impact is applied to the liquid crystal device, the substrate 8, It is possible to prevent the substrate 9 from being bent and to prevent the liquid crystal device from being damaged.

  Further, at the time of manufacture, the edge portions 2a, 2b and 2c of the substrate 8 and the substrate 9 can be easily set by being fitted into the frames 4A, 4B and 4C. At this time, as shown in FIG. 9, for example, when the sealing portion 40 is provided on the side surface of the substrate 8 or 9, the frame 4 </ b> B can be provided avoiding the sealing portion 40. As a result, the frame 4B can be disposed so as to contact the side surfaces of the substrate 8 and the substrate 9, and the liquid crystal device can be downsized.

  (Third embodiment)

  Next, a third embodiment according to the present invention will be described with reference to the drawings.

  10 is a perspective view from the front side of the liquid crystal panel 2 held in the frame of the third embodiment, and FIG. 11 is a perspective view from the back side of the liquid crystal panel 2 held in the frame of FIG.

  As shown in FIG. 10, the present embodiment is different in that frames 41, 42, 43, 44, and 45 are provided instead of the frame 4 of the first embodiment. To do. 10 and 11, the polarizing plate (not shown) is attached to the substrate 8 and the substrate 9 as shown in FIG.

  As shown in FIGS. 10 and 11, the frames 41, 42, 43, 44 and 45 are provided so as to hold and reinforce the edge portions 2a, 2b, 2c and 2d, respectively.

  The frame 41 holds and reinforces the edge portions 2a of the substrate 8 and the substrate 9 so as to support them through an adhesive (not shown). The frame 41 has an L-shaped cross section as can be seen from the end surface S41 shown in FIGS. The frame 41 is fixed to the surface (edge) of the substrate 9 opposite to the liquid crystal side, the substrate 8 and the side surface of the substrate 9 with an adhesive (not shown). As shown in FIG. 10, the frame 41 has a height h in the Z direction substantially equal to the thickness of the substrate 8 and the substrate 9.

  As shown in FIG. 11, the frame 42 holds the edge portion 2b on the side opposite to the protruding portion 9a side of the liquid crystal panel 2 via an adhesive (not shown). The cross-sectional shape of the frame 42 is L-shaped as can be seen from the end surface S42 shown in FIG. The frame 42 is fixed to the surface (edge) of the substrate 9 opposite to the liquid crystal side, the substrate 8 and the side surface of the substrate 9 with an adhesive (not shown). At this time, the frame 42 is disposed so as to avoid the sealing portion 40. The frame 42 is disposed with almost no gap with respect to the side surfaces of the substrate 8 and the substrate 9.

  The frame 43 is the same as the frame 41 except that it holds the edge 2c of the liquid crystal panel 2, and thus the description thereof is omitted.

  As shown in FIG. 10, the frames 44 and 45 are arranged on both sides of the circuit board 3 so as to sandwich the circuit board 3.

  As shown in FIG. 10, the frame 44 has a part of the edge part 2d (the outer part on one side of the circuit board 3) located at the end edge of the protruding part 9a of the board 9 via an adhesive (not shown). , Hold and reinforced to support. The frame 44 has an L-shaped cross section as can be seen from the end surface S44 shown in FIG. A part of the edge 2d of the liquid crystal panel 2 is fixed to the L-shaped frame 44 with an adhesive (not shown).

  As shown in FIG. 10, the frame 45 holds and reinforces another part of the edge 2d (the outer part on the other side of the circuit board 3) via an adhesive (not shown). The frame 45 has an L-shaped cross section as can be seen from the end surface S45 shown in FIG. A part of the edge 2d of the liquid crystal panel 2 is fixed to the L-shaped frame 45 via an adhesive (not shown).

  In the present embodiment, an example in which the frame 41 reinforces the edge portion 2a via an adhesive without using a polarizing plate is shown. However, the peripheral edge 2a may be reinforced via a polarizing plate or an adhesive (not shown) provided on the surfaces of the substrate 8 and the substrate 9 (the same applies to the other frames 42 and 43).

  Thus, according to the present embodiment, the frame 41 has a substantially L-shaped cross section that holds the surface of the substrate 9, the substrate 8, and the side surface of the substrate 9 via an adhesive (not shown). In this case, since the frame 41 has a substantially L-shaped cross section, the strength of the frame 41 can be improved as compared with a flat plate or the like. Therefore, for example, when an impact is applied from the outside, the frame 41 is difficult to deform. As a result, when the impact is applied to the liquid crystal device, the substrate 41 and the substrate 9 are more reliably prevented from being bent by the frame 41 which is not easily deformed, and the substrate 8 and the substrate 9 are more reliably prevented from being damaged. Can be prevented.

  Further, when forming the frame 41, for example, it is only necessary to bend it once, so that the frame 41 having two flat portions excellent in flatness can be easily manufactured. Accordingly, when the frame 41 is set on the substrate 8 and the substrate 9 via an adhesive (not shown), the corner of the substrate 9 can be easily aligned with the L-shaped corner of the frame 41, so that the liquid crystal panel 2 can be surely and easily. Can be reinforced. In addition, since the frame 41 has excellent flatness, when the frame 41 is set on the substrate 8 and the substrate 9 via an adhesive (not shown), the both are brought into close contact with each other via the adhesive, and the liquid crystal device 1 can be easily downsized.

  The circuit board 3 is connected to the edge 2d of the protruding portion 9a of the board 9, and L-shaped frames 44 and 45 reinforce the edge 2d so as to avoid the circuit board 3. . As a result, the edge 2d side to which the circuit board 3 is connected can be reinforced by the L-shaped frames 44 and 45, so that the damage to the board 9 can be prevented more reliably and the reliability of the liquid crystal device can be improved. Can be made.

  In this embodiment, as shown in FIG. 10, the frame 41 has a substantially L-shaped cross section that holds the surface of the substrate 9, the substrate 8, and the side surface of the substrate 9 via an adhesive (not shown). An example is shown. However, the present invention is not limited to this. For example, the frame may have a substantially L-shaped cross section that holds the surface of the substrate 8, the side surfaces of the substrate 8, and the substrate 9 (the same applies to the other frames 42 and the like). Is). Further, for example, the frame 41 may have a substantially L-shaped cross section that holds the polarizing plate (not shown) on the surface of the substrate 8 (or the substrate 9), the side surfaces of the substrate 8 and the substrate 9 (other frames). The same applies to 42 etc.).

  FIG. 12 is a perspective view from the front side of the liquid crystal panel 2 held by a frame disposed outside the circuit board 3.

  Compared to the third embodiment, the frame 41 and the like that reinforces the liquid crystal panel 2 shown in FIG. 12 is provided with a frame 50 shown in FIG. 12 instead of the frames 44 and 45 and the shape of the circuit board 3 is different. The explanation will focus on the different points.

  As shown in FIG. 12, the frame 50 holds the edge portion 2d of the protruding portion 9a of the substrate 9 so as to be supported via the circuit board 3, and the protruding portion 9a of the substrate 9 (the edge portion 2d thereof). Is reinforced. The frame 50 has a substantially L shape as can be seen from the end surface S50 shown in FIG. The edge 2d of the liquid crystal panel 2 is held by an L-shaped frame 50. With such a configuration, the edge 2d of the liquid crystal panel 2 can be reinforced.

  Note that the liquid crystal device 1 and the like of the present invention are not limited to the above-described examples, and it is needless to say that various changes can be made without departing from the gist of the present invention. Moreover, you may combine said each embodiment etc. 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.).

  Further, for example, in the second embodiment, the example in which the frames 4A, 4B, and 4C reinforce the three edge portions 2a, 2b, and 2c of the liquid crystal panel 2 is shown. However, the number of frames is not limited to this, and may be at least one, for example.

  Further, for example, in the third embodiment, as shown in FIG. 10, an example in which frames 44 and 45 are arranged on both sides of the circuit board 3 so as to sandwich the circuit board 3 is shown. However, the frame may be arranged so as to avoid the circuit board according to the position of the circuit board pulled out from the liquid crystal panel 2. Thereby, the edge portion 2d on the protruding portion 9a side can be reinforced according to the position of the circuit board 3.

  Further, for example, in the third embodiment, as shown in FIG. 10, a frame 41 having an L-shaped cross section (end face) has a height h in the Z direction substantially equal to the thickness of the substrate 8 and the substrate 9. An example is shown. However, for example, the height of the frame 41 in the Z direction is not limited to this, and may be a height that covers only the substrate 9, for example. In such a case, the cost of the frame 41 and the like can be reduced, and the weight of the liquid crystal device can be reduced.

It is a partial exploded perspective view of the liquid crystal device of a 1st embodiment. It is a perspective view from the front side of the liquid crystal panel hold | maintained at the flame | frame of FIG. It is a perspective view from the back side of the liquid crystal panel hold | maintained at the flame | frame of FIG. It is a perspective view of the liquid crystal panel of FIG. It is AA sectional drawing of the liquid crystal panel hold | maintained at the flame | frame of FIG. 4 is a flowchart illustrating a manufacturing process of the liquid crystal device according to the first embodiment. It is sectional drawing which shows the state by which the liquid crystal panel in which the polarizing plate from which a shape differs was affixed by the flame | frame. It is a perspective view from the front of the liquid crystal panel hold | maintained at the flame | frame of 2nd Embodiment. It is a perspective view from the back of the liquid crystal panel hold | maintained at the flame | frame of FIG. It is a perspective view of the front side of the liquid crystal panel hold | maintained at the flame | frame of 3rd Embodiment. It is a perspective view from the back side of the liquid crystal panel hold | maintained at the flame | frame of FIG. It is a perspective view from the front side of the liquid crystal panel hold | maintained at the flame | frame arrange | positioned on the outer side of a circuit board.

Explanation of symbols

  B display area, C non-display area, T thin film transistor element, h height, H width, L1, L2 corner, Sa, Sb, S41, S42, S44, S45, S50 end face, 1 liquid crystal device, 2 liquid crystal panel, 2a, 2b, 2c, 2d Edge, 3 Circuit board, 4, 4A, 4B, 4C, 41, 42, 43, 44, 45, 50 Frame, 4a Drawing part, 5 Illumination device, 7 Seal material, 8, 9 Substrate, 9a overhang, 9b, 9c, 9d, 9e side, 11 common electrode, 15 gate electrode, 16 source electrode, 17 pixel electrode, 20 driver IC, 23, 24, 26, 31 wiring, 30 flexible substrate 32 Adhesive, 33, 34 Polarizing plate, 35 Light guide plate, 36, 37 Prism sheet, 38 Diffusion sheet, 39 Reflective sheet 40 sealing portion

Claims (11)

First and second substrates holding electro-optic material;
An electro-optical device comprising: a reinforcing member that directly holds at least one edge of at least one of the first and second substrates. The electro-optical device according to claim 1,
The first and second substrates have a rectangular shape,
The electro-optical device, wherein the reinforcing member extends from at least one edge portion to the other two edge portions. The electro-optical device according to claim 1,
The first and second substrates have a rectangular shape,
The electro-optical device, wherein the reinforcing member is provided on each of three edge portions of the first and second substrates. The electro-optical device according to any one of claims 1 to 3,
The reinforcing member includes a surface of the first substrate opposite to the electro-optic material side, a surface of the second substrate opposite to the electro-optic material side, and the first and second surfaces. An electro-optical device having a substantially U-shaped cross section for holding a side surface of a substrate. The electro-optical device according to any one of claims 1 to 3,
The reinforcing member has a cross section that holds a surface of the first substrate opposite to the electro-optic material side and at least one of the side surfaces of the first and second substrates. The first reinforcing member having a substantially L shape, the surface of the second substrate opposite to the electro-optical material side, or at least one of the side surfaces of the first and second substrates. An electro-optical device comprising a first reinforcing member having a substantially L-shaped cross section that holds a side surface. The electro-optical device according to claim 5,
A flexible substrate connected to one edge of the first or second substrate;
The reinforcing member has a substantially L-shaped cross section that reinforces the surface of the first or second substrate to which the flexible substrate is connected, the surface opposite to the electro-optical material side, and the side surface of the one edge portion. An electro-optical device comprising a second reinforcing member having a shape. The electro-optical device according to claim 3,
The first and second substrates have protrusions provided to protrude from the edge portions of the first and second substrates,
The electro-optical device, wherein the reinforcing member is disposed so as to avoid the protruding portion. The electro-optical device according to any one of claims 1 to 4,
Further comprising first and second polarizing plates disposed on surfaces of the first and second substrates opposite to the electro-optic material side,
The electro-optical device, wherein the reinforcing member holds a polarizing plate overlapping the edge portion. The electro-optical device according to any one of claims 1 to 4,
Further comprising first and second polarizing plates disposed on surfaces of the first and second substrates opposite to the electro-optic material side,
The electro-optical device, wherein the reinforcing member does not hold the polarizing plate but holds the first and second substrates. First and second substrates holding electro-optic material;
An electro-optical panel comprising: a reinforcing member that directly holds at least one edge of at least one of the first and second substrates. Holding the electro-optic material by the first and second substrates;
Reinforcing the first and second substrates by directly holding at least one edge of at least one of the first and second substrates by a reinforcing member;
And a step of setting a light guide plate so as to overlap the reinforced first and second substrates.

Images