JP2006227466A - Electrooptical device and electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrooptical device capable of easily preventing a flexible substrate from floating over a light guide plate etc., to improve display quality, and electronic equipment using the electrooptical device. <P>SOLUTION: A flexible substrate 3 which has a light source 28 arranged opposite a photodetection surface of a light guide plate 29 and is folded to overlap a reflection-side surface 37 of the light guide plate 29 on the opposite side from where light is projected is connected to an overhang portion 18, and a reflection sheet 33 is bonded to the light guide plate 29 opposite the reflection-side surface 37 across the flexible substrate 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electro-optical device used for a personal computer, a mobile phone, and the like, and an electronic apparatus using the electro-optical device.

  Conventionally, electro-optical devices such as liquid crystal devices have been widely used as display devices for electronic devices such as personal computers and mobile phones. However, personal computers and mobile phones are required to be smaller and lighter, and are narrow. For example, a flexible substrate having flexibility is used in order to place each device in the space and electrically connect them.

However, for example, a flexible substrate having one side connected to a liquid crystal panel is bent halfway, the other side of the flexible substrate is bonded to a reflection sheet on the light guide plate, and light from a light source mounted on the other side is guided. When trying to enter the light plate, there is a problem that the reflection sheet is rolled by the force of returning to the original of the flexible substrate and light leaks from the gap. As a method for solving the problem, the flexible substrate is used as the reflection sheet. It has been proposed to adhere to an uncovered region of the light guide plate (see, for example, Patent Document 1).
JP 2004-258180 A (paragraph [0008], FIG. 2).

  However, although the above-described method can suppress light leakage due to the wobbling from the light guide plate, the place where the flexible substrate is bonded to the light guide plate is limited due to a demand for further downsizing of the liquid crystal device. At the same time, it was difficult to bend the flexible substrate with a margin, and the repulsive force due to the bending also increased.

  Therefore, even if the flexible substrate does not come off from the light guide plate, the light source is arranged on the flexible substrate, so that the light guide plate rises from the surface of the light guide plate due to the repulsive force of the flexible substrate. The position of the light receiving surface of the light source and the light source are misaligned so that light does not accurately enter the light guide plate, and the light cannot be normally supplied to the liquid crystal panel by the light guide plate, which may cause uneven brightness. .

  The present invention has been made in view of the above-described problems, and an electro-optical device and an electro-optical device that can easily prevent the flexible substrate from being lifted from the light guide plate and the like and can further improve display quality. An object is to provide an electronic device used.

  In order to achieve the above object, an electro-optical device according to a main aspect of the present invention includes a substrate that holds an electro-optical material, a light source that emits light that irradiates the substrate, and light that is emitted from the light source. The light guide plate is connected to the substrate, and the light source is disposed so as to face the light receiving surface of the light guide plate, and is bent so as to overlap the surface opposite to the light output side of the light guide plate. A flexible substrate and an optical member facing the opposite surface via the flexible substrate and bonded to the light guide plate.

  Here, the “optical member” is, for example, a reflection sheet, a scattering sheet, or the like.

  In the present invention, a light source is disposed so that a flexible substrate connected to the substrate faces a light receiving surface of the light guide plate, and the light source plate is bent so as to overlap a surface opposite to the light emitting side. Since the optical member is bonded to the light guide plate while facing the opposite surface through the flexible substrate, the optical member presses the flexible substrate from above onto the light guide plate, for example. It is possible to prevent the flexible substrate from lifting from the surface of the light guide plate due to the repulsive force. As a result, the alignment between the light receiving surface of the light guide plate and the light source is shifted, and light does not enter the light guide plate accurately, and the occurrence of uneven brightness can be suppressed.

  According to an aspect of the present invention, the flexible substrate is held by the optical member and is not bonded to the opposite surface. This eliminates the need for adhesiveness to the flexible substrate. For example, it is possible to insert the flexible substrate while positioning and sticking the optical member to the light guide plate, thereby reducing the manufacturing process and manufacturing cost. Can be reduced.

  According to an aspect of the present invention, the flexible substrate is bonded to the opposite surface with an adhesive member. Here, the “adhesive member” refers to, for example, a double-sided adhesive tape. Thereby, it is possible to suppress the repulsive force generated by bending in the flexible substrate itself, and it is possible to prevent the flexible substrate from being lifted from the light guide plate.

  According to one embodiment of the present invention, the flexible substrate is characterized in that a film that reflects light is formed at least in a region overlapping with a display region of the substrate. Here, the “reflective film” means, for example, a white colored film or a metal film. As a result, even if the flexible substrate is sandwiched between the reflective sheet and the light guide plate, for example, the flexible substrate can reflect light at least in the region overlapping the display region of the substrate. Etc. can be prevented. That is, in a region where the display region and the region where the light of the flexible substrate or the adhesive member cannot be reflected overlaps, the light is not reflected, and the amount of the emitted light decreases in the region, and only that region becomes dark. Since this does not occur, it is possible to prevent uneven brightness.

  According to one form of this invention, the said adhesive member is colored by the color which the said light-guide plate side reflects light. Thus, for example, even if a flexible substrate with an adhesive member adhered between the reflective sheet and the light guide plate is sandwiched, the light guide plate side of the adhesive member can reflect light, so that the unevenness of reflected light by the adhesive member can be reduced. Can be prevented. That is, in a region where the display region and the region where the light of the flexible substrate or the adhesive member cannot be reflected overlaps, the light is not reflected, and the amount of the emitted light decreases in the region, and only that region becomes dark. Since this does not occur, it is possible to prevent uneven brightness.

  According to an aspect of the present invention, the flexible substrate has a substantially U-shaped notch in a region overlapping the display region of the substrate. Thereby, for example, the flexible substrate remaining by the notch is fixed to the peripheral portion of the light guide plate with a small amount of light supplied to the liquid crystal panel by the light guide plate, and the liquid crystal panel is irradiated with the light passing through the notch. The incident light can be made uniform.

  According to one aspect of the present invention, there are a plurality of the light sources, and the flexible substrate has a comb-like shape so as to correspond to the plurality of light sources in a region overlapping with the opposite surface in a plane. It has a notch part. As a result, the flexible substrate can be fixed to the light guide plate using a portion where the light does not sufficiently spread on the light source side of the light guide plate, and the display quality can be improved by, for example, the reflective sheet of the notch. The influence can be reduced.

  According to an aspect of the present invention, the light source includes a plurality of light sources, and the flexible substrate has a comb-tooth shape corresponding to a portion between the plurality of light sources in a region overlapping with the opposite surface in a plane. And the two outermost teeth of the comb teeth are longer than the teeth sandwiched between the two outermost teeth. For example, a portion between the light sources is a portion where light does not spread sufficiently on the light source side of the light guide plate, and teeth corresponding to comb-shaped shapes are provided in the portions. As a result, for example, the flexible substrate is fixed to the light guide plate by utilizing the portion where the light does not sufficiently spread on the light source side of the light guide plate and the peripheral portion of the light guide plate where the light guide plate emits less light. It is possible to reduce the influence on display quality when the flexible substrate is fixed to the light guide plate.

  According to an aspect of the present invention, the flexible substrate is fixed to the opposite surface so as to avoid a display area of the substrate. Thereby, the influence on the display quality at the time of fixing a flexible substrate to a light-guide plate can be prevented reliably.

  According to an aspect of the present invention, the apparatus further includes a frame that holds at least the light guide plate, and the optical member is also bonded to the frame. Thereby, the area which adheres an optical member increases, and it becomes possible to increase the force which suppresses the floating from the light-guide plate surface by the repulsive force of a flexible substrate.

  Further, for example, if the flexible substrate is fixed to the frame at a position closer to the bent portion, the floating from the surface of the light guide plate due to the repulsive force of the flexible substrate can be suppressed more reliably.

  According to an aspect of the present invention, the optical member is a reflection sheet. Thereby, for example, the flexible substrate can be pressed from the opposite surface side of the light guide plate, and it is possible to surely suppress the floating due to the repulsive force of the flexible substrate.

  Moreover, since the reflection sheet used normally can be utilized, reduction of manufacturing cost can be aimed at.

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

  The present invention includes an electro-optical device that can easily prevent the flexible substrate from being lifted from the light guide plate and the like, and can further improve the display quality, thereby reducing the manufacturing cost and providing high-quality electronic equipment. can do.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description of the embodiments, an active matrix liquid crystal device using a TFD (Thin Film Diode) as an example of an electro-optical device and an electronic apparatus using the liquid crystal device will be mainly described. It is not limited to this. Moreover, in the following drawings, in order to make each structure easy to understand, the actual structure and the scale and number of each structure are different.

  (First embodiment)

  1 is a schematic 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 in FIG. 1, FIG. 3 is a schematic partial bottom view of the liquid crystal device, and FIG. It is a schematic exploded perspective view.

  (Configuration of liquid crystal device)

  For example, as shown in FIG. 1, the liquid crystal device 1 includes a liquid crystal panel 2, a flexible substrate 3 as a flexible substrate connected to the liquid crystal panel, an illumination device 4 that emits light to the liquid crystal panel 2, and the liquid crystal panel 2. And a frame 5 that holds the lighting device 4. Here, in addition to the frame 5, other incidental mechanisms are attached to the liquid crystal device 1 as needed (not shown).

  The liquid crystal panel 2 is sealed in a gap between the first substrate 7 and the second substrate 8 which are a pair of substrates bonded together with a sealant 6 as shown in FIGS. 1 and 2, for example. For example, the electro-optical material includes a TN (Twist Nematic) type liquid crystal 9.

  Here, as shown in FIG. 2, for example, the first substrate 7 has a scanning electrode 10 made of a transparent conductor such as ITO (Indium Tin Oxide) formed on the liquid crystal side. For example, an alignment film 11 made of polyimide resin or the like is formed. The alignment film 11 is subjected to a rubbing process for defining the alignment state of the liquid crystal 9 when no voltage is applied.

  Further, for example, as shown in FIG. 2, the first substrate 7 is provided with a polarizing plate 12 or the like on the side opposite to the liquid crystal side.

  On the other hand, for example, as shown in FIG. 2, the second substrate 8 includes a plurality of pixel electrodes 13 (not shown) arranged in a matrix on the liquid crystal side, and a direction intersecting the scanning electrode 10 described above in the boundary region between the pixel electrodes 13 (see FIG. A plurality of signal electrodes 14 extending in a strip shape in the Y-axis direction in FIG. 1, TFDs 15 (not shown) electrically connected to the pixel electrodes 13 and the signal electrodes 14 are formed, and an alignment film 16 is formed on the liquid crystal side. ing.

  Further, for example, as shown in FIG. 2, the second substrate 8 is provided with a polarizing plate 17 or the like on the side opposite to the liquid crystal side.

  Further, on the display surface on the second substrate side, as shown in FIGS. 2, 3 and 4, for example, a display region B is formed on the inner side where an image or the like is displayed by driving a substantially rectangular liquid crystal.

  In addition, although not shown in figure in either liquid crystal side of the 1st board | substrate 7 and the 2nd board | substrate 8, a base layer, a reflection layer, a colored layer, a light shielding layer, etc. are formed as needed.

  Here, the first substrate 7 and the second substrate 8 are plate-like members formed of a light transmissive material such as glass or synthetic resin as shown in FIGS. 1 and 2, for example. The second substrate 8 has an overhanging region 18 (hereinafter referred to as “overhanging portion”) protruding outward.

  Further, the scan electrode 10 is formed in a strip shape extending in a predetermined direction (X-axis direction in FIGS. 1 and 2), and the plurality of scan electrodes 10 are configured in stripes in parallel with each other. The pixel electrode 13 is formed of a transparent conductor such as ITO.

  Further, for example, as shown in FIGS. 1 and 2, the overhanging portion 18 is an electrode extending to the overhanging portion 18 from a region where the scanning electrode 10 and the signal electrode 14 are surrounded by the sealing material 6 (hereinafter referred to as “liquid crystal region”). The scanning electrode wiring 19 and the signal electrode wiring 20, which are parts, and a liquid crystal driving IC 21 for supplying a liquid crystal driving current to each of the electrode wirings are provided.

  The overhanging portion 18 includes an external terminal 22 that receives current from the flexible substrate 3 and the like, and an input wiring (not shown) that supplies current from the outside to the liquid crystal driving IC 21.

  When the liquid crystal driving IC 21 receives various signals related to a display image or the like via, for example, the flexible substrate 3 and the external terminal 22, the liquid crystal driving IC 21 generates a driving signal corresponding to the signal, and the driving signal is The scanning electrode wiring 19 and the signal electrode wiring 20 are supplied.

  Next, for example, as shown in FIGS. 1 to 4, the flexible substrate 3 has a wiring pattern 24 formed on a base substrate 23, and electronic components such as capacitors and ICs (not shown) are mounted as necessary. . Here, the base substrate 23 is a flexible film-like member, and the wiring pattern 24 is made of, for example, copper.

  Further, the flexible substrate 3 is formed with a connection terminal (not shown) at the end on the liquid crystal panel side. For example, as shown in FIGS. 1 and 2, an ACF (Anisotropic Conductive Film) (not shown) is used for the exterior of the liquid crystal panel 2. A panel side 25 as one side is connected to the liquid crystal side of the first substrate 7 so that the connection terminal is electrically connected to the terminal 22.

  Further, for example, as shown in FIGS. 1 and 2, the flexible substrate 3 is folded in the middle of extending from the panel side 25 connected to the first substrate 7 to the illuminating device side 26 which is the other side on the opposite side. The lighting device side 26 is bent so as to extend on the surface opposite to the side emitting light to the first substrate 7 of the light guide plate, which will be described later, disposed on the side opposite to the liquid crystal side of the first substrate 7. Is formed. For example, as shown in FIG. 3, from the light source position to the end portion 35 on the lighting device side 26, C is disposed so as to overlap the inside of the light guide plate.

  Further, the flexible substrate 3 is an extended region D (hatched region in FIG. 3) extending on the surface of the light guide plate as shown in FIG. 3, for example. An adhesive tape 27 is adhered, and the flexible substrate 3 is bonded and fixed to the light guide plate.

  Here, the double-sided adhesive tape 27 is colored white on the light guide plate side, and even if the flexible substrate 3 is sandwiched between a reflection sheet and a light guide plate, which will be described later, as shown in FIG. Since it reflects, the influence by extension of the flexible substrate 3 can be decreased. Of course, as long as light can be reflected, the color is not limited to white, and may be, for example, a metal color.

  Next, the illumination device 4 is a backlight unit that supplies light to the liquid crystal panel 2 as shown in FIGS. 2, 3, and 4, for example, and includes a light source 28, a light guide plate 29, two prism sheets 30, 31, A diffusion sheet 32, a reflection sheet 33, a light shielding sheet 34, and the like are included.

  As the light source 28, for example, an LED (Light Emitting Diode) is used. As shown in FIGS. 2, 3, and 4, three light sources 28 are spaced slightly inward from the end portion 35 on the lighting device side 26 of the flexible substrate 3. 3 are arranged in parallel in the X-axis direction.

  Furthermore, the light source 28 is disposed so as to face the light receiving surface of the light guide plate 29 so that light from the light source 28 can be incident on the light receiving surface of the light guide plate 29 just as shown in FIG.

  For example, as shown in FIG. 3, the light source 28 is attached to the light guide plate 29 from the position where the light source 28 of the flexible substrate 3 is arranged to the end portion 35 on the illumination device side 26 (shaded area in FIG. 3). Sometimes, the light source 28 is disposed on the flexible substrate 3 so that the light source 28 faces the light receiving surface of the light guide plate 29.

  The light guide plate 29 has, for example, a substantially rectangular shape as shown in FIGS. 2 and 4, and emits light incident from the light source 28 to the entire diffusion sheet 32, and the light source side end surface is from the light source 28. It is a light receiving surface 36 for receiving light.

  The light guide plate 29 is a reflection-side surface 37 that is the surface opposite to the side that emits light to the first substrate 7, and is a flexible substrate on the inner side from the edge of the light-receiving surface 36 by the extension region D in FIG. 3. 3 illuminating device side 26 extends, and is fixed to the surface of the light guide plate 29 by a double-sided adhesive tape 27.

  The diffusion sheet 32 emits uniform light by diffusion, and the prism sheets 30 and 31 improve the luminance of light emitted from the diffusion sheet 32, and the liquid crystal panel 2 of the light guide plate 29 in that order. Located on the side surface.

  The reflection sheet 33 is, for example, a plastic film blended with a pigment having a high diffuse reflectance, white color, or the like, and is formed to have substantially the same size as the light guide plate 29 as shown in FIGS.

  Further, for example, as shown in FIGS. 2, 3, and 4, the reflection sheet 33 is attached to the reflection-side surface 37 of the light guide plate 29 with a double-sided adhesive tape 38, and between the double-sided adhesive tape 38 and the light guide plate. 3, the flexible substrate 3 is sandwiched so that the flexible substrate 3 overlaps the reflection-side surface 37 only in the extending region D in FIG. 3.

  Further, the reflective sheet 33 has a lateral width E (width E in the X-axis direction in FIG. 3), for example, as shown in FIG. 3, illumination of the flexible substrate 3 sandwiched between the reflective sheet 33 and the light guide plate 29. It is formed so as to protrude slightly on both sides from the lateral width F (width F in the X-axis direction in FIG. 3) of the apparatus side 26. As a result, the both sides of the flexible substrate 3 are directly attached to the light guide plate 29, so that the flexible substrate 3 can be firmly pressed against the light guide plate 29 from both sides, and the light source 28 is displaced due to the repulsive force of the flexible substrate 3. Can be prevented more reliably.

  Here, the double-sided adhesive tape 38 is formed in, for example, a frame shape, and the reflection side surface side of the light guide plate 29 is colored white. Thereby, it is possible to minimize the influence on the reflection effect of the reflection sheet 33. Of course, as long as light can be reflected, the color is not limited to white, and may be, for example, a metal color.

  For example, as shown in FIGS. 2 and 4, the light shielding sheet 34 is formed in a frame shape in which an opening is formed so that the central portion coincides with at least the display region B that is an area related to display of the second substrate 8. The liquid crystal panel side reflects black light and the prism sheet side reflects white light or the like.

  Next, the frame 5 is formed so as to be able to hold the liquid crystal panel 2, the light guide plate, and the like as shown in FIGS. The frame 5 is larger than the liquid crystal panel 2 and the light guide plate, and is formed in a substantially frame shape. The liquid crystal panel 2 and the light guide plate and the like are accommodated in an open space inside the frame.

  (Manufacturing method of liquid crystal device)

  Next, a process of assembling the flexible substrate 3 and the illumination device 4 to the liquid crystal panel 2 will be briefly described with respect to the method for manufacturing the liquid crystal device 1 configured as described above.

  First, the liquid crystal panel 2 is manufactured by a known method.

  Next, connection terminals are formed on the base substrate 23 of the flexible substrate 3 in a predetermined pattern, for example, as shown in FIG. 1, on the wiring pattern 24 and the panel side 25, and the light source 28 is connected to the end of the lighting device side 26. For example, three of them are separated from each other 35 and are mounted side by side in the X-axis direction in FIG. Other electronic components are also mounted on the base substrate 23 as necessary.

  Thereafter, the panel side 25 is connected to the external terminal 22 of the liquid crystal panel 2 via the ACF so that the connection terminal provided on the panel side 25 of the flexible substrate 3 is electrically connected. Connect to.

  Further, for example, as shown in FIGS. 2 and 4, the light shielding sheet 34 is positioned so that the inner opening thereof substantially corresponds to the display area B of the second substrate 8, and the liquid crystal of the first substrate 7 of the liquid crystal panel 2. It arrange | positions at the polarizing plate 17 on the opposite side. Furthermore, as shown in FIGS. 2 and 4, two prism sheets 30 and 31, a diffusion sheet 32, and a light guide plate 29 are disposed thereon.

  Next, for example, the flexible substrate 3 is connected, and the liquid crystal panel 2 in which the prism sheets 30 and 31, the diffusion sheet 32, and the light guide plate 29 are disposed on the first substrate side is held by the frame 5. Then, the lighting device side 26 of the flexible substrate 3 once pulled out of the frame 5 is bent in the middle of the flexible substrate 3, and the reflection is the opposite side of the light guide plate 29 from the side that emits light to the first substrate 7. It arrange | positions so that it may overlap with the side surface 37. FIG.

  At this time, for example, as shown in FIG. 2, in the extension region D of the flexible substrate 3 (the hatched portion in FIG. 3), the surface of the double-sided adhesive tape 27 colored in white is the reflection side surface side. The extension region D of the flexible substrate 3 is firmly adhered and fixed to the reflection-side surface 37 of the light guide plate 29.

  Further, the extension region D of the flexible substrate 3 is bonded and fixed to the light guide plate 29, so that the light source 28 mounted on the lighting device side 26 of the flexible substrate 3 accurately faces the light receiving surface 36 of the light guide plate 29. It will be positioned and fixed.

  Next, for example, as shown in FIG. 3 and FIG. 4, the extension region D of the flexible substrate 3 is sandwiched between the reflection-side surface 37 of the light guide plate 29 from above the flexible substrate 3 that is bonded and fixed, and the flexible substrate 3 from above. The reflection sheet 33 is bonded to the extension region D of the flexible substrate 3 and the reflection-side surface of the light guide plate 29 so as to press the substrate 3.

  At this time, the double-sided adhesive tape 38 used for bonding the reflective sheet 33 is attached to the reflective side surface side of the light guide plate 29 of the reflective sheet 33 so that the white colored surface faces the reflective side surface 37 of the light guide plate 29. Has been.

  Thus, the illumination device 4 is assembled to the liquid crystal panel 2 held in the frame 5, and other equipment and the like are attached to complete the liquid crystal device 1 that is an electro-optical device.

  Above, description of the manufacturing method of the liquid crystal device 1 is complete | finished.

  As described above, according to the present embodiment, the light source 28 is disposed so that the flexible substrate 3 connected to the overhanging portion 18 faces the light receiving surface of the light guide plate 29 and the light emitted from the light guide plate 29 is emitted. The reflective sheet 33 is bonded to the light guide plate 29 so as to be overlapped with the reflective surface 37 that is the surface opposite to the reflective substrate 37 and facing the reflective surface 37 through the flexible substrate 3. Therefore, for example, the reflection sheet 33 can press the flexible substrate 3 onto the light guide plate 29 from above, and can prevent lifting from the surface of the light guide plate due to the repulsive force of the flexible substrate 3. As a result, the alignment between the light receiving surface of the light guide plate 29 and the light source 28 is shifted, so that light does not enter the light guide plate 29 accurately, and the occurrence of uneven brightness can be suppressed.

  Further, since the flexible substrate 3 is bonded to the reflection side surface side by the double-sided adhesive tape 27, it is possible to suppress the repulsive force generated by bending in the flexible substrate itself, and the light guide plate of the flexible substrate 3 more reliably. The lift from 29 can be prevented.

  Furthermore, since the double-sided adhesive tape 27 is colored in a color that reflects light on the light guide plate side, for example, the flexible substrate 3 on which the double-sided adhesive tape 27 is adhered is sandwiched between the reflective sheet 33 and the light guide plate 29. However, the light guide plate side of the double-sided adhesive tape 27 can reflect light, and the occurrence of uneven reflected light due to the double-sided adhesive tape 27 can be prevented. That is, in the area where the light-reflecting area of the flexible substrate 3 or the double-sided adhesive tape 27 overlaps with the display area, the light is not reflected and the amount of emitted light decreases in the area, and only that area becomes dark. Since this does not occur, it is possible to prevent uneven brightness.

  (Modification 1)

  Next, a first modification of the liquid crystal device according to the present invention will be described. The first modification differs from the first embodiment in that the flexible substrate partially overlapped with the light guide plate has a substantially U-shaped cutout in the display area of the liquid crystal panel. explain. In addition, about the component which is common in the component of 1st Embodiment, the code | symbol same as the component of 1st Embodiment is attached | subjected, and the description is abbreviate | omitted.

  FIG. 5 is a schematic partial bottom view of the liquid crystal device according to the first modification of the present invention.

  For example, as shown in FIG. 1, the liquid crystal device 101 includes a liquid crystal panel 2, a flexible substrate 103 as a flexible substrate connected to the liquid crystal panel 2, an illumination device 4 that irradiates light to the liquid crystal panel 2, and the liquid crystal panel 2. And a frame 5 that holds the lighting device 4. Here, in addition to the frame 5, other incidental mechanisms are attached to the liquid crystal device 101 as needed (not shown).

  Here, for example, as shown in FIG. 1, the flexible substrate 103 is bent so as to be folded while extending from the panel side 25 connected to the first substrate 7 to the illuminating device side 126 which is the other side on the opposite side. ing. Furthermore, the illumination device side 126 is formed so as to extend to the surface opposite to the light emitting side on the first substrate 7 of the light guide plate 29 disposed on the opposite side to the liquid crystal side of the first substrate 7. Yes.

  For example, as shown in FIG. 5, the illumination device side 126 of the flexible substrate 103 has an extended region D <b> 1 that is a region that overlaps the reflection-side surface 37 of the light guide plate 29 in a plane. The extension region D1 is a substantially U-shaped cutout portion cut inward from the end portion 135 on the illumination device side 126 so as to avoid the display region B (in FIG. 5) of the second substrate 8. 141, and the lateral width (X-axis direction in FIG. 5) of the outermost periphery of the extension region D1 is formed to be the same as the lateral width E (X-axis direction E in FIG. 5) of the light guide plate 29. .

  Further, the notch 141 is a part of the display area B as shown in FIG. 5, for example, and is formed in an area surrounded on three sides by the extending area D1.

  In the extended region D1, a double-sided adhesive tape 127 as an adhesive member is attached to the light guide plate side of the base substrate 23, and the flexible substrate 103 is bonded and fixed to the light guide plate 29.

  For example, the double-sided adhesive tape 127 is colored white on the light guide plate side, and even if the flexible substrate 103 is sandwiched between the reflective sheet and the light guide plate, the white light is reflected by the white. The influence of the extension can be reduced. Of course, as long as light can be reflected, the color is not limited to white, and may be, for example, a metal color.

  The lateral width of the outermost periphery (X-axis direction in FIG. 5) of the extension region D1 of the flexible substrate 103 is formed to be approximately the same as the lateral width of the light guide plate 29 and the reflection sheet 33 (X-axis direction in FIG. 5). However, it is good also as a thing smaller than horizontal width, such as a reflective sheet, similarly to 1st Embodiment. Thereby, since the both sides of the reflection sheet 33 protruding from the flexible substrate 103 are directly attached to the light guide plate 29, the flexible substrate 103 can be firmly pressed against the light guide plate 29 from both sides, and the repulsive force of the flexible substrate 103 The positional deviation of the light source 28 can be prevented more reliably.

  As described above, according to the first modification, the flexible substrate 103 partially overlapped with the reflection-side surface 37 of the light guide plate 29 is substantially in a region overlapping the display region B of the second substrate 8 that is the display-side substrate. Since the U-shaped cutout portion 141 is provided, for example, the flexible substrate 103 left by the cutout portion 141 in the peripheral portion of the light guide plate 29 where light is not supplied to the liquid crystal panel 2 by the light guide plate 29 is small. The light passing through the notch portion 141 can be fixed and the light incident on the liquid crystal panel 2 can be made uniform.

  Further, since the lighting device side 26 of the flexible substrate 103 is fixed to the opposite surface of the light guide plate 29 so as to avoid the display area B of the second substrate 8, when the flexible substrate 103 is fixed to the light guide plate 29, Can be reliably prevented from affecting the display quality.

  (Modification 2)

  Next, Modification Example 2 of the liquid crystal device according to the invention will be described. In the second modification, the comb-shaped notch portions are formed so that the flexible substrate partially overlapped with the light guide plate corresponds to each of the plurality of light sources in a region overlapping the reflection side surface of the light guide plate. Since this embodiment is different from the first embodiment, this point will be mainly described. In addition, about the component which is common in the component of 1st Embodiment, the code | symbol same as the component of 1st Embodiment is attached | subjected, and the description is abbreviate | omitted.

  FIG. 6 is a schematic partial bottom view of a liquid crystal device according to Modification 2 of the present invention.

  For example, as shown in FIG. 1, the liquid crystal device 201 includes a liquid crystal panel 2, a flexible substrate 203 as a flexible substrate connected to the liquid crystal panel 2, an illumination device 4 that irradiates the liquid crystal panel 2 with light, and the liquid crystal panel 2. And a frame 5 that holds the lighting device 4. Here, in addition to the frame 5, other incidental mechanisms are attached to the liquid crystal device 201 as needed (not shown).

  Here, for example, as shown in FIG. 1, the flexible substrate 203 is bent so as to be folded while extending from the panel side 25 connected to the first substrate 7 to the lighting device side 226 which is the other side opposite to the panel side 25. ing. Further, the illuminating device side 226 extends to a reflection-side surface 37 as a surface opposite to the side emitting light to the first substrate 7 of the light guide plate 29 disposed on the opposite side to the liquid crystal side of the first substrate 7. It is formed to do.

  For example, as shown in FIG. 6, the illumination device side 226 of the flexible substrate 203 has an extension region D <b> 2 that overlaps the reflection-side surface 37 of the light guide plate 29 in a planar manner.

  Further, the illumination device side 226 of the flexible substrate 203 is sandwiched between the extension regions D2 as shown in FIG. 6, for example, and the illumination device side 226 is avoided so as to avoid the display region B (in FIG. 6) of the second substrate 8. A notch 241 cut in a comb-like shape is formed on the inner side from the end 235 of the light source, and the lateral width of the outermost periphery of the extending region D2 (X-axis direction in FIG. 6) is the lateral width of the light guide plate 29. It is formed in the same way as E (X-axis direction E in FIG. 6).

  For example, as shown in FIG. 6, the notch portion 241 is formed in a comb-like shape so as to correspond to, for example, the three light sources 28 in a region that overlaps the reflection-side surface 37 of the light guide plate 29. This is an open area sandwiched between areas D2.

  In the extended region D2, a double-sided adhesive tape 227 as an adhesive member (not shown) is attached to the light guide plate side of the base substrate 23, and the flexible substrate 203 is bonded and fixed to the light guide plate 29.

  The double-sided adhesive tape 227 is colored white, for example, on the light guide plate side, and even if the flexible substrate 203 is sandwiched between the reflective sheet and the light guide plate, the white side reflects the light. The influence of the extension can be reduced. Of course, as long as light can be reflected, the color is not limited to white, and may be, for example, a metal color.

  In addition, the lateral width (X-axis direction in FIG. 6) of the outermost periphery of the extending region D2 of the flexible substrate 203 is formed to be approximately the same size as the lateral width (X-axis direction in FIG. 6) of the light guide plate 29 and the reflection sheet 33. However, it is good also as a thing smaller than horizontal width, such as a reflective sheet, similarly to 1st Embodiment. Thereby, both side portions of the reflection sheet 33 protruding from the flexible substrate 203 are directly attached to the light guide plate 29, so that the flexible substrate 203 can be firmly pressed against the light guide plate 29 from both sides, and the repulsive force of the flexible substrate 203 The positional deviation of the light source 28 can be prevented more reliably.

  In addition, if the light does not sufficiently spread on the light source side of the light guide plate 29, the extended region D <b> 2 may extend to a region overlapping the display region B of the second substrate 8.

  As described above, according to the second modification example, the flexible substrate 203 fixed to the reflection side surface 37 has a comb-like shape so as to correspond to the plurality of light sources 28 in a region overlapping the reflection side surface 37 in a plane. Since the cutout portion 241 is provided, light that does not spread sufficiently on the light source side of the light guide plate 29 can be reliably reflected by the reflection sheet 33 of the cutout portion 241, and the flexible substrate 203 can be reflected by the reflection sheet 33. The influence on the display quality by the flexible substrate 203 when being fixed to the light guide plate 29 from above can be reduced.

  Furthermore, the flexible substrate 203 remaining by the notch portion 241 can be fixed to the light guide plate 29 by using a portion where the light does not sufficiently spread on the light source side of the light guide plate 29, and the flexible substrate 203 is formed by the reflection sheet 33. The influence on the display quality by the flexible substrate 203 when being fixed to the light guide plate 29 from above can be reduced.

  Further, since the illumination device side 226 of the flexible substrate 203 is fixed to the reflection side surface 37 of the light guide plate 29 so as to avoid the display area B of the second substrate 8, the flexible substrate 203 is fixed to the light guide plate 29. The influence on the display quality at the time can be surely prevented.

  (Modification 3)

  Next, a third modification of the liquid crystal device according to the present invention will be described. In the third modification, among the plurality of comb-shaped teeth, the two outermost teeth are deformed in such a way that they extend in the direction toward the lighting device from the teeth sandwiched between the two outermost teeth. Since this is different from Example 2, this point will be mainly described. In addition, about the component which is common in the component of 1st Embodiment, the code | symbol same as the component of 1st Embodiment is attached | subjected, and the description is abbreviate | omitted.

  FIG. 7 is a schematic partial bottom view of a liquid crystal device according to Modification 3 of the present invention.

  For example, as shown in FIG. 1, the liquid crystal device 401 includes a liquid crystal panel 2, a flexible substrate 403 as a flexible substrate connected to the liquid crystal panel 2, an illumination device 4 that irradiates light to the liquid crystal panel 2, and the liquid crystal panel 2. And a frame 5 that holds the lighting device 4. Here, in addition to the frame 5, other incidental mechanisms are attached to the liquid crystal device 401 as needed (not shown).

  Here, for example, as shown in FIGS. 1 and 7, the flexible substrate 403 is folded in the middle of extending from the panel side 25 connected to the first substrate 7 to the illuminating device side 426 which is the other side on the opposite side. Is bent. Further, the illumination device side 426 extends to a reflection side surface 37 as a surface opposite to the side emitting light to the first substrate 7 of the light guide plate 29 disposed on the opposite side of the liquid crystal side of the first substrate 7. It is formed to do.

  For example, as shown in FIG. 7, the illumination device side 426 of the flexible substrate 403 has an extension region D4 that is a region that overlaps the reflection-side surface 37 of the light guide plate 29 in a planar manner.

  Further, the illumination device side 426 of the flexible substrate 403 is sandwiched between the extension regions D4 as shown in FIG. 7, for example, and the illumination device side 426 is avoided so as to avoid the display region B (in FIG. 7) of the second substrate 8. 7 have notches 441 that are cut in a comb-like shape on the inner side from the end portions 435a and 435b, and the width of the outermost periphery of the extending region D4 (in the X-axis direction in FIG. 7) is the light guide plate 29 is formed in the same width E (X-axis direction E in FIG. 7).

  Further, for example, as shown in FIG. 7, the notch portion 441 is formed in a comb shape so as to correspond to, for example, the three light sources 28 in a region overlapping the reflection side surface 37 of the light guide plate 29 in a plane. It is the open area | region pinched | interposed into the tooth | gear which is the comb-shaped extension area | region D4 to do.

  Further, the flexible substrate 403 has a comb shape corresponding to a portion between the three light sources 28 in a region overlapping the reflection side surface 37 of the light guide plate 29 in a plane, and the comb tooth extending region. For example, as shown in FIG. 7, D4 has four teeth 442a and 442b arranged adjacent to the notch 441 and arranged in the X-axis direction.

  For example, as shown in FIG. 7, the four teeth are such that the two outermost teeth 442a extend in the direction toward the lighting device from the teeth 442b sandwiched between the two outermost teeth 442a. The end 440a of the outer tooth 442a is formed longer in the Y-axis direction (in FIG. 7) by G in FIG. 7 than the end 440b of the sandwiched tooth 442b.

  In the extended region D4, a double-sided adhesive tape 427 as an adhesive member (not shown) is attached to the light guide plate side of the base substrate 23, and the flexible substrate 403 is bonded and fixed to the light guide plate 29.

  The double-sided adhesive tape 427 is colored, for example, white on the light guide plate side, and even if the flexible substrate 403 is sandwiched between the reflection sheet 33 and the light guide plate 29, the white light is reflected by the white. The influence of the extension of 403 can be reduced. Of course, as long as light can be reflected, the color is not limited to white, and may be, for example, a metal color.

  The lateral width of the outermost periphery (X-axis direction in FIG. 7) of the extending region D4 of the flexible substrate 403 is formed to be approximately the same as the lateral width of the light guide plate 29 and the reflection sheet 33 (X-axis direction in FIG. 7). However, it is good also as a thing smaller than horizontal width, such as a reflective sheet, similarly to 1st Embodiment. As a result, both side portions of the reflection sheet 33 protruding from the flexible substrate 403 are directly attached to the light guide plate 29, so that the flexible substrate 403 can be firmly pressed against the light guide plate 29 from both sides, and the repulsive force of the flexible substrate 403 The positional deviation of the light source 28 can be prevented more reliably.

  In addition, if the light does not sufficiently spread on the light source side of the light guide plate 29, the extended region D <b> 4 may extend to a region overlapping the display region B of the second substrate 8.

  As described above, according to the third modification, the illumination device side 426 serving as the other side of the comb-shaped flexible substrate 403 is located between the three light sources 28 in a region overlapping the reflection side surface 37 of the light guide plate 29 in a plane. The comb-teeth-shaped extension region D4 has four teeth arranged adjacent to the notch 441 and arranged in the X-axis direction, for example, as shown in FIG. 442a and 442b, and the plurality of teeth 442a and 442b are illuminated from the teeth 442b in which the two outermost teeth 442a are sandwiched between the outermost two teeth 442a. Since the light is extended in the direction of the apparatus, the light is not sufficiently spread on the light source side of the light guide plate 29 and the light guide plate 29 is less irradiated with light to the liquid crystal panel 2. Using flexible substrate 403 As can be fixed to the light guide plate 29, it is possible to reduce the influence on the display quality at the time of fixing the flexible substrate 403 to the light guide plate 29.

  Further, since the illumination device side 426 of the flexible substrate 403 is fixed to the reflection side surface 37 of the light guide plate 29 so as to avoid the display area B of the second substrate 8, the flexible substrate 403 is fixed to the light guide plate 29. The influence on the display quality at the time can be surely prevented.

  (Modification 4)

  Next, a fourth modification of the liquid crystal device according to the present invention will be described. The fourth modification is different from the first embodiment in that the flexible substrate is not bonded to the light guide plate, and this point will be mainly described. In addition, about the component which is common in the component of 1st Embodiment, the code | symbol same as the component of 1st Embodiment is attached | subjected, and the description is abbreviate | omitted.

  FIG. 8 is a schematic exploded perspective view of a liquid crystal device according to Modification 4 of the present invention.

  For example, as shown in FIG. 1, the liquid crystal device 501 includes a liquid crystal panel 2, a flexible substrate 503 as a flexible substrate connected to the liquid crystal panel 2, an illumination device 4 that irradiates the liquid crystal panel 2 with light, and the liquid crystal panel 2 and a frame 5 that holds the illumination device 4. In addition to the frame 5, other auxiliary mechanisms are attached to the liquid crystal device 501 as necessary (not shown).

  Here, for example, as shown in FIG. 1, the flexible substrate 503 is bent so as to be folded while extending from the panel side 25 connected to the first substrate 7 to the illuminating device side 26 which is the other side on the opposite side. ing. Further, the illumination device side 26 extends to a reflection side surface 37 as a surface opposite to the side emitting light to the first substrate 7 of the light guide plate 29 disposed on the opposite side of the liquid crystal side of the first substrate 7. It is formed to do.

  For example, as shown in FIG. 3, the illumination device side 26 of the flexible substrate 503 has an extended region D (hatched region in FIG. 3) that is a region that overlaps the reflection-side surface 37 of the light guide plate 29 in a planar manner. From the position where the light source 28 is disposed to the end portion 35 on the illumination device side 26, that is, the light source 28 is disposed so as to extend on the reflection side surface 37 by the length of C in FIG.

  Further, the flexible substrate 503 is an extended region D (hatched region in FIG. 8) extending on the surface of the light guide plate 29 as shown in FIG. 8, for example, and the double-sided adhesive tape 27 on the light guide plate side of the base substrate 23. Is not attached and is disposed directly on the reflection-side surface of the light guide plate 29.

  Further, the flexible substrate 503 is, for example, white as a reflective film so that the extended region D (the hatched region in FIG. 8) that extends and overlaps the reflective side surface 37 can reflect the light from the light guide plate 29. Even if the flexible substrate 503 is colored and is sandwiched between the reflection sheet 33 and the light guide plate 29, the influence of the extension of the flexible substrate 503 can be reduced. Of course, as long as light can be reflected, the color is not limited to white, and may be, for example, a metal color. Specifically, a white colored film or a metal reflective film may be formed.

  As described above, according to the fourth modification, the flexible substrate 503 is held by the reflection sheet 33 and is not bonded to the reflection-side surface 37 of the light guide plate 29, so that the flexible substrate 503 does not have to have adhesiveness. For example, it is possible to insert the flexible substrate 503 while positioning and sticking the reflective sheet 33 to the light guide plate 29, and thus it is possible to reduce the manufacturing process and the manufacturing cost.

  Further, since the flexible substrate 503 is formed with a film that reflects light at least in a region overlapping the display region B of the second substrate 8, for example, the flexible substrate 503 is interposed between the reflective sheet 33 and the light guide plate 29. Even when the flexible substrate 503 is sandwiched, the flexible substrate 503 can reflect light at least in the region overlapping with the display region B, and uneven luminance due to the flexible substrate 503 can be prevented. That is, in the area where the area of the flexible substrate or the double-sided adhesive tape where light cannot be reflected overlaps the display area B, the light is not reflected and the amount of emitted light decreases in the area, and only that area becomes dark. Since this does not occur, it is possible to prevent uneven brightness.

  (Modification 5)

  Next, Modification Example 5 of the liquid crystal device according to the invention will be described. In the fifth modification, the reflection sheet as an optical member is different from the first embodiment in that the reflection sheet is also bonded and fixed to the frame closer to the flexible substrate folding position than the reflection side surface of the light guide plate. Explained. In addition, about the component which is common in the component of 1st Embodiment, the code | symbol same as the component of 1st Embodiment is attached | subjected, and the description is abbreviate | omitted.

  9 is a schematic perspective view of a liquid crystal device according to Modification 5 of the present invention, FIG. 10 is a cross-sectional view taken along line HH in FIG. 9, and FIG. 11 is a schematic bottom view of the liquid crystal device.

  For example, as shown in FIG. 9, the liquid crystal device 601 includes a liquid crystal panel 2, a flexible substrate 3 as a flexible substrate connected to the liquid crystal panel 2, an illumination device 604 that irradiates light to the liquid crystal panel 2, and the liquid crystal panel 2 and a frame 605 that holds the lighting device 604. Here, in addition to the frame 605, other incidental mechanisms are attached to the liquid crystal device 601 as necessary (not shown).

  Here, for example, as shown in FIGS. 9 and 10, the flexible substrate 3 is folded in the middle of extending from the panel side 25 connected to the first substrate 7 to the illuminating device side 26 which is the other side on the opposite side. Is bent. Further, the lighting device side 26 wraps around under a fixing portion 655 of the frame 605 described later, and transmits light to the first substrate 7 of the light guide plate 29 disposed on the opposite side of the liquid crystal side of the first substrate 7. It is formed so as to extend to the reflection side surface 37 as the surface opposite to the emission side.

  Next, the reflection sheet 633 of the illumination device 604 is a plastic film blended with, for example, a pigment having a high diffuse reflectance, white color, and the like, and has substantially the same width as that of the light guide plate 29 (see FIG. 11). X-axis direction) and the length (Y-axis direction in FIG. 10) is longer than the light guide plate 29 and is substantially longer than the length of the overhanging portion 18 of the first substrate 7.

  Further, for example, as shown in FIGS. 10 and 11, the reflection sheet 633 is attached to the reflection-side surface 37 of the light guide plate 29 with a double-sided adhesive tape 38, and between the double-sided adhesive tape 38 and the light guide plate 29, The flexible substrate 3 is sandwiched inside the extended region D, which is a hatched region in FIG.

  Further, for example, as shown in FIG. 11, the reflection sheet 633 is formed so as to protrude I from the end of the reflection-side surface 37 of the light guide plate 29, and the protruding region protrudes from both sides of the flexible substrate 3. It also overlaps with a part of the fixed portion 655 605 (the fine hatched area J in FIG. 11).

  As a result, the reflection sheet 633 is adhered to the fixing portion 655 of the frame 605 that protrudes from the flexible substrate 3, so that the flexible substrate 3 is firmly pressed against the frame 605 from both sides at a position closer to the bend than the reflection-side surface 37 of the light guide plate 29. Therefore, the positional deviation of the light source 28 due to the repulsive force of the flexible substrate 3 can be prevented more reliably.

  Here, the double-sided adhesive tape 656 that corresponds to the fixed portion 655 including the protruding region J and is attached to the fixed portion side of the reflective sheet 633 is not on the reflective-side surface of the light guide plate 29, unlike the double-sided adhesive tape 38. It is not particularly necessary to color it white.

  Next, for example, as shown in FIG. 9, the frame 605 has side walls facing each other in the X-axis direction in the figure, and on the opposite side to the liquid crystal of the overhanging portion 18 of the first substrate 7 so as to be sandwiched between the side walls. A fixing portion 655 is provided.

  Further, for example, as shown in FIG. 10, the fixing portion 655 has a substantially rectangular cross section, and the right side surface of the fixing portion 655 corresponds to the bending position of the flexible substrate 3 in FIG. 10, and the lower side surface is bent. It corresponds to the flexible substrate 3 immediately after.

  Furthermore, since the fixing portion 655 is formed at a position where the light source 28 can be sandwiched between the light guide plate 29 as shown in FIG. 10, for example, the light source 28 has a repulsive force against the bending of the flexible substrate 3. Misalignment can be further prevented.

  As described above, according to the fifth modification, the reflection sheet 633 is also bonded to the fixing portion 655 of the frame 605 closer to the position where the flexible substrate 3 is bent than the reflection side surface 37 of the light guide plate 29. As a result, the area for adhering to the surface of the light guide plate increases due to the repulsive force of the flexible substrate 3.

  Moreover, since it can fix to the fixing | fixed part 655 of the flame | frame 605 near the bending part of the flexible substrate 3, the floating from the light-guide plate surface by the repulsive force of the flexible substrate 3 can be suppressed more reliably.

  Second Embodiment Electronic Device

  Next, an electronic apparatus according to the second embodiment of the present invention that includes the liquid crystal devices 1, 101, 201, 401, 501, and 601 described above will be described. In addition, about the component which is common in the component of 1st Embodiment, the code | symbol same as the component of 1st Embodiment is attached | subjected, and the description is abbreviate | omitted.

  FIG. 12 is a schematic configuration diagram showing the overall configuration of a display control system of an electronic apparatus according to the second embodiment of the present 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. 12. 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.

  In addition, the liquid crystal panel 2 includes a drive circuit 361 that drives the display region L.

  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 the present embodiment, the light source 28 is disposed so that the flexible substrate 3 connected to the overhanging portion 18 in the liquid crystal device 1 used in the electronic device 300 faces the light receiving surface of the light guide plate 29. The light guide plate 29 is bent so as to overlap a reflection side surface 37 that is the surface opposite to the light emitting side, and faces the reflection side surface 37 with the flexible substrate 3 interposed therebetween. Since the reflection sheet 33 is bonded to the light guide plate, the reflection sheet 33 can press the flexible substrate 3 onto the light guide plate 29 from above, for example, and prevents the flexible substrate 3 from lifting from the surface of the light guide plate due to the repulsive force. be able to. As a result, the alignment between the light receiving surface of the light guide plate 29 and the light source 28 is shifted, so that light does not enter the light guide plate 29 accurately, and the occurrence of uneven brightness can be suppressed.

  In particular, recent electronic devices are required to be electronic devices with higher precision and higher functionality, and it can be said that the present invention for providing electronic devices with such high display quality has great significance.

  Specific electronic equipment includes touch panels, projectors, liquid crystal televisions, viewfinder type, monitor direct view type video tape recorders, car navigation systems, pagers, electronic notebooks that are equipped with liquid crystal display devices in addition to mobile phones and personal computers. Calculators, word processors, workstations, videophones, POS terminals and the like. Needless to say, for example, the liquid crystal devices 1, 101, 201, 401, 501, and 601 described above can be applied as display units of these various electronic devices.

  Note that the electro-optical device and the electronic apparatus of the present invention are not limited to the above-described examples, and it is needless to say that various modifications can be made without departing from the gist of the present invention. Moreover, in the range which does not deviate from the summary of this invention, you may combine each embodiment and modification which were mentioned above.

  Although the present invention has been described above with the preferred embodiment, the present invention is not limited to any of the above-described embodiments, and can be implemented with appropriate modifications within the scope of the technical idea of the present invention.

  For example, the thin film diode element active matrix type liquid crystal device has been described in the above-described embodiments and modifications. However, the present invention is not limited to this. For example, an electrophoretic display device, a thin film transistor element active matrix type, or a passive matrix type liquid crystal device is used. It may be a device. Furthermore, it is not limited to the reflective transflective type, and may be a reflective type or a transmissive type, for example. As a result, even for a wide variety of liquid crystal devices, it is possible to more easily prevent the flexible substrate from being lifted from the light guide plate or the like, and to further improve the display quality.

  In the above-described embodiment and modification, the mounting of the liquid crystal driving IC has been described as COG (Chip On Glass). However, the present invention is not limited to this. For example, a COF (Chip On Film) mounted on the flexible substrate 3 is used. There may be. As a result, even for a wide variety of liquid crystal devices, it is possible to more easily prevent the flexible substrate from being lifted from the light guide plate or the like, and to further improve the display quality.

  Further, in the above-described modified example, the flexible substrate in the portion adjacent to the notch portion or sandwiched between the notch portions has been described as being disposed avoiding the display region B, but the present invention is not limited to this, and for example, at least the display If a white colored film or a metal group reflective film is provided on the surface of the light guide plate such as a flexible substrate or a double-sided adhesive tape in the region that overlaps the region B, the portion adjacent to the notch or sandwiched between the notches A flexible substrate may be arranged in the display area B. As a result, even for a wide variety of liquid crystal devices, it is possible to more easily prevent the flexible substrate from being lifted from the light guide plate or the like, and to further improve the display quality.

1 is a schematic perspective view of a liquid crystal device according to a first embodiment. It is the sectional view on the AA line in FIG. 1 is a schematic partial bottom view of a liquid crystal device according to a first embodiment. 1 is a schematic exploded perspective view of a liquid crystal device according to a first embodiment. 12 is a schematic partial bottom view of a liquid crystal device according to Modification 1. FIG. 12 is a schematic partial bottom view of a liquid crystal device according to Modification 2. FIG. 14 is a schematic partial bottom view of a liquid crystal device according to Modification 3. FIG. 10 is a schematic exploded perspective view of a liquid crystal device according to Modification 4. FIG. 10 is a schematic perspective view of a liquid crystal device according to Modification Example 5. FIG. It is the HH sectional view taken on the line in FIG. 10 is a schematic bottom view of a liquid crystal device according to Modification Example 5. FIG. It is a schematic block diagram of the display control system of the electronic device which concerns on 2nd Embodiment.

Explanation of symbols

  1, 101, 201, 401, 501, 601 Liquid crystal device, 2 Liquid crystal panel, 3, 103, 203, 403, 503 Flexible substrate, 4,604 Lighting device, 5,605 Frame, 6 Sealing material, 7 First substrate , 8 Second substrate, 9 Liquid crystal, 10 Scan electrode, 11, 16 Alignment film, 12, 17 Polarizing plate, 13 Pixel electrode, 14 Signal electrode, 15 TFD, 18 Overhang, 19 Scan electrode wiring, 20 Signal electrode Wiring, 21 liquid crystal driving IC, 22 external terminal, 23 base substrate, 24 wiring pattern, 25 panel side, 26 lighting device side, 27, 38, 127, 227, 656 double-sided adhesive tape, 28 light source, 29 lead Light plate, 30, 31 Prism sheet, 32 Diffusion sheet, 33 Reflection sheet, 34 Light sheet, 35,135,235,435A, 435b ends, 36 light-receiving surface 37 reflecting side surface 300 electronics, 361 drive circuit, 390 Display control circuit

Claims (12)

A substrate for holding an electro-optic material;
A light source that emits light to irradiate the substrate;
A light guide plate that emits light emitted from the light source to the substrate;
A flexible substrate connected to the substrate and arranged to face the light receiving surface of the light guide plate and bent so as to overlap a surface opposite to the light emitting side of the light guide plate; ,
An electro-optical device comprising: an optical member facing the opposite surface via the flexible substrate and bonded to the light guide plate.   The electro-optical device according to claim 1, wherein the flexible substrate is held by the optical member and is not bonded to the opposite surface.   The electro-optical device according to claim 1, wherein the flexible substrate is bonded to the opposite surface with an adhesive member.   The electro-optic according to any one of claims 1 to 3, wherein the flexible substrate is formed with a film that reflects light at least in a region that overlaps a display region of the substrate. apparatus.   The electro-optical device according to claim 3, wherein the adhesive member is colored in a color that reflects light on the light guide plate side.   The said flexible substrate has a substantially U-shaped notch part in the area | region which overlaps with the display area of the said board | substrate, The Claim 1 characterized by the above-mentioned. Electro-optic device. There are a plurality of the light sources,
The said flexible board | substrate has a comb-tooth-shaped notch part so that it may respond | correspond to each of these light sources in the area | region which planarly overlaps with the said opposite surface. The electro-optical device according to claim 1. There are a plurality of the light sources,
The flexible substrate has a comb-teeth shape corresponding to a portion between the plurality of light sources in a region overlapping with the opposite surface in a plane.
The electro-optic according to any one of claims 1 to 5, wherein the two outermost teeth of the comb-teeth shape are longer than the teeth sandwiched between the two outermost teeth. apparatus.   9. The electro-optical device according to claim 1, wherein the flexible substrate is fixed to the opposite surface so as to avoid a display area of the substrate. A frame for holding at least the light guide plate;
The electro-optical device according to claim 1, wherein the optical member is also bonded to the frame.   The electro-optical device according to claim 1, wherein the optical member is a reflection sheet.   An electronic apparatus comprising the electro-optical device according to any one of claims 1 to 11.

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