JP4543859B2 - Electro-optical device and electronic apparatus - Google Patents

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 display 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 thinner. For example, a flexible circuit board connected to a liquid crystal panel in which a liquid crystal is sandwiched between a pair of substrates is folded and arranged. A method has been proposed (see, for example, Patent Document 1).
JP 11-344719 A (paragraph [0010], FIG. 1).

  However, the above-described method has made it possible to reduce the size of the non-display area and reduce the manufacturing cost. However, due to the high performance and multi-functionality of electronic devices, for example, a flexible connected to a liquid crystal panel. A variety of functions are required for circuit boards, and even if the flexible circuit board is folded to save space, it cannot meet the further demands for thinner and smaller electronic devices. Has occurred.

  The present invention has been made in view of the above-described problems, and can reduce the space of an electro-optical panel with a simple structure, and can be further reduced in thickness and size, and the electro-optical device. An object of the present invention is to provide an electronic device using the.

  In order to achieve the above object, an electro-optical device according to a main aspect of the present invention includes a first substrate holding an electro-optical material, and an optical member disposed on the opposite side of the first substrate from the electro-optical material. An electro-optical device comprising a flexible circuit board provided with wiring connected to the first board, wherein the first board has a first projecting portion that projects from the optical member, and the flexible circuit board Has a main body connected to the first substrate and a branch projecting from the main body, the main body and the branch being connected to the first substrate on the side opposite to the first projecting portion. Is bent to the electro-optical material side, and a part of the bent branch portion is further bent to the optical member side and arranged on the first overhanging portion. Here, the “optical member” is, for example, a polarizing plate disposed on a glass substrate opposite to the liquid crystal side in a liquid crystal panel.

  In the present invention, the main body part and the branch part are bent, and a part of the branch part of the flexible circuit board is arranged on the first projecting part of the first substrate projecting from the optical member. The branch portion of the flexible circuit board can be arranged in the first overhanging portion that is a portion depressed by the optical member from the optical member, and the thickness of the electro-optical panel can be reduced by at least the depressed portion.

  According to an aspect of the present invention, the apparatus further includes a second substrate facing the first substrate and sandwiching the electro-optic material with the first substrate, and the first substrate extends from the second substrate. The flexible circuit board is connected to the second overhanging portion. Thereby, for example, it is not necessary to fold the branch portion, and the branch portion can be arranged in the first overhanging portion that is recessed from the surface of the optical member that is the display surface, thereby preventing the circuit from being cut by folding and further reducing the electro-optical panel. It becomes possible to reduce the thickness.

  According to an aspect of the present invention, the light source plate further guides light to the second substrate, the light source is mounted on the main body, and the light source bends the flexible circuit board. It arrange | positions so that the end surface of the said light-guide plate may be faced. Accordingly, for example, the main body portion can be fixed toward the electro-optical panel by the branch portion disposed on the first projecting portion on the opposite side to the main body portion side on which the light source of the flexible circuit board is mounted. It is possible to prevent the main body part from floating from the light guide plate fixed to the panel, and the light source to be displaced vertically from the light guide plate. Therefore, the light emitted from the light source can be reliably incident on the light guide plate. Of course, since the branch portion is bonded to the first overhanging portion that is recessed from the display surface, the thickness of the electro-optical panel itself can be reduced, and the space can be saved.

  According to an aspect of the present invention, the apparatus further includes a frame that holds at least the first substrate and the second substrate, and the light guide plate is disposed between the second substrate and the frame, and a bottom portion of the frame. Is provided with an opening for inserting the light source. Thereby, for example, the light source can be accurately inserted and arranged on the light receiving surface of the light guide plate from the outside of the frame, and the display accuracy can be improved. Further, since the light source mounted on the flexible circuit board can be inserted into the frame, space can be saved, and the electro-optical device can be further reduced in size.

  According to an aspect of the present invention, the apparatus further includes a frame that holds at least the first substrate, and the main body portion and the branch portion of the flexible circuit board are bent along at least a part of the outer surface of the frame. It is characterized by being. Thereby, a part of the main body part or a part of the branch part is arranged in the first overhang part in the frame while the main body part and the branch part wind up the frame, and the first substrate and the like are placed in the frame. For example, it is possible to prevent the electro-optical panel from jumping out of the frame or from being misaligned. Further, since the main body portion and the branch portion are bent so as to be along a part of the outer surface of the frame, the extension of the flexible circuit board from the frame can be further reduced, and the electro-optical device can be further downsized. It becomes possible.

  According to an aspect of the present invention, the outer surface of the frame has a recess that accommodates at least a part of a portion along the outer surface of at least one of the main body portion and the branch portion. . As a result, the protrusion of the main body part and the branch part from the outer surface of the frame can be reduced, so that the electro-optical device can be made smaller and thinner. Further, the main body portion and the branch portion can be easily accommodated in the concave portion, and the positioning of the main body portion and the branch portion becomes easier.

  According to one form of this invention, the said branch part protrudes as a 1st and 2nd branch part from the both sides via the said main-body part, It is characterized by the above-mentioned. Thereby, for example, since the first branch portion and the second branch portion can be arranged at different locations, the function as the flexible circuit board can be further expanded.

  According to an aspect of the present invention, the branch portion protrudes from both sides as the first and second branch portions via the main body portion, the frame has a substantially rectangular shape, and the first branch The portion is bent along the outer surface on one side of the frame, and the second branch portion is bent along the outer surface on the other side facing the one side of the frame. To do. Thereby, for example, since the first branch portion and the second branch portion can be arranged at different locations, the function as the flexible circuit board can be further expanded. Also, a part of the first and second branch portions can be bonded from both sides of the frame to the first overhang portion in the frame, and the first substrate or the like is further firmly pressed into the frame, for example, electro-optical This makes it possible to more firmly prevent the panel from protruding from the frame, displacement, and the like.

  According to an aspect of the present invention, a part of the first branch part is bonded to the second branch part so as to cover at least a part of the second branch part. As a result, the first branch portion can fix the second branch portion while pulling the second branch portion, for example, so that the second branch portion is more strongly wound around the outer surface of the frame, and the electro-optical panel is more strongly protruded from the frame or misaligned. Can be prevented.

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

  The present invention includes an electro-optical device that can reduce the space of the electro-optical panel with a simple structure, and thus provides a high-quality electronic device that is thinner and more compact and has a reduced manufacturing cost. can do.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description of the embodiments, a liquid crystal display device as an example of an electro-optical device, specifically a reflective transflective passive matrix liquid crystal display device, and an electronic apparatus using the liquid crystal display device Explain, but 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 display device according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 (a liquid crystal driving IC and a light source are not cut), and FIG. FIG. 3 is a schematic exploded perspective view of a liquid crystal display device.

  (Configuration of liquid crystal display device)

  The liquid crystal display device 1 includes, for example, a liquid crystal panel 2, a flexible substrate 3 as a flexible circuit substrate connected to a substrate to be described later of the liquid crystal panel 2, as shown in FIGS. And a frame 5 for holding the liquid crystal panel 2 and the illumination device 4. Here, in addition to the frame 5, other incidental mechanisms are attached to the liquid crystal display device 1 as necessary (not shown).

  The liquid crystal panel 2 includes, for example, a first substrate 7 and a second substrate 8 which are substrates bonded together with a sealing material 6 as shown in FIGS. 1, 2, and 3, and an electro-optic sealed in a gap between the two substrates. It has a substance, for example, a STN (Super Twisted Nematic) type liquid crystal 9 and is accommodated in the frame 5 so that the first substrate 7 side becomes a display surface.

  2 and 3, for example, a plurality of segment electrodes 10 are formed in a predetermined pattern on the surface of the liquid crystal side as shown in FIGS. 2 and 3, and over the segment electrode 10 (the liquid crystal side). A coat layer 11 is formed, and an alignment film (not shown) is further formed thereon. A polarizing plate 12 as an optical member is disposed outside the first substrate 7 (on the side opposite to the liquid crystal 9).

  Further, on the display surface on the first substrate side, for example, as shown in FIG. 1, a display region B in which an image or the like is displayed on the inside by driving a substantially rectangular liquid crystal and its surrounding part, and the first substrate 7 will be described later. A non-display area C in which an image such as an overhanging portion is not displayed is formed.

  On the other hand, on the second substrate 8, for example, as shown in FIGS. 2 and 3, a plurality of common electrodes 13 are formed in a predetermined pattern on the surface of the liquid crystal side, and on the common electrode 13 (liquid crystal side). An overcoat layer 14 is formed, and an alignment film (not shown) is further formed thereon. In addition, a polarizing plate 15 and the like are disposed outside the second substrate 8 (on the side opposite to the liquid crystal 9).

  In addition, although not shown in figure in the inner surface of either one 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, 2, and 3. Has a first projecting portion 16 projecting outward with respect to the polarizing plate 12 (Y-axis direction in FIGS. 1, 2, and 3).

  As a result, as shown in FIGS. 1 and 2, a step is formed by the amount of the polarizing plate 12 (D in FIG. 1) so as to form a step at the end of the polarizing plate 12 on the display surface side of the first substrate. The first overhanging portion 16 having a substantially rectangular shape with the one substrate 7 exposed is formed. Therefore, even if a part of the branch portion of the flexible substrate 3 is disposed on the first overhanging portion 16 as will be described later, the thickness of the liquid crystal display device 1 (D in FIG. 1) accommodated in the depression is obtained. Becomes thinner.

  Further, the first substrate 7 has a second overhanging portion 17 that protrudes outward (Y-axis direction in FIGS. 2 and 3) with respect to the second substrate 8.

  A plurality of segment electrodes 10 are formed in a stripe shape with a transparent conductive material such as ITO (Indium Tin Oxide), for example, but are parallel in one direction (Y-axis direction in the figure) as shown in FIGS. It is formed as follows.

  In addition, the common electrode 13 is formed in a plurality of stripes with a transparent conductive material such as ITO similarly to the segment electrode 10, but as shown in FIG. 2 and FIG. It is formed in the axial direction.

  For example, as shown in FIGS. 2 and 3, the second overhanging portion 17 includes a segment electrode wiring 18 and a common electrode extending from the region where the segment electrode 10 and the common electrode 13 are surrounded by the sealing material 6 to the second overhanging portion 17. For example, a liquid crystal driving IC 20 for supplying a liquid crystal driving current to each electrode wiring.

  The second overhanging portion 17 includes an external terminal 21 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 20.

  When the liquid crystal driving IC 20 receives various signals related to a display image or the like via, for example, the flexible substrate 3 and the external terminal 21, the liquid crystal driving IC 20 generates a driving signal corresponding to the signal. This is supplied to the segment electrode wiring 18 and the common electrode wiring 19.

  Next, the flexible substrate 3 has a wiring pattern 23 (23a, 23b) formed on a base substrate 22 (22a, 22b) as shown in FIGS. 1, 2, and 3, and a capacitor or IC (not shown). Such electronic components are mounted. Here, the base substrate 22 (22a, 22b) is a flexible film-like member, and the wiring pattern 23 (23a, 23b) is made of, for example, copper. Moreover, although not shown in figure, the double-sided adhesive sheet is adhere | attached on the surface fixed to the flame | frame 5 grade | etc., For example. Thereby, as will be described later, the flexible substrate 3 can prevent the liquid crystal panel or the like from jumping out from the frame 5 or from being displaced.

  The flexible substrate 3 further includes a main body 24 and a right branch 25 as a branch projecting from the main body 24. The right branch 25 is electrically connected to an external circuit (not shown). Yes.

  The main body 24 is provided with a main body connection terminal (not shown) at the end on the liquid crystal panel side, and is electrically connected to the external terminal 21 of the liquid crystal panel 2 via an ACF (Anisotropic Conductive Film) (not shown). Yes.

  Further, as shown in FIGS. 1, 2, and 3, for example, the main body 24 has a side opposite to the side connected to the first substrate 7 once out of the frame 5 and second along the outer wall of the frame 5. The front end of the main body portion 24 is bonded and fixed to the bottom of the frame 5 so as to be bent around the substrate 8 (liquid crystal side).

  Further, the right branch portion 25 branches from the right side of the main body portion 24 as shown in FIGS. 1, 2 and 3, for example, and one side of the wiring pattern 23a provided on the base substrate 22a of the main body portion 24. The portion is electrically connected to the wiring pattern 23 b provided on the base substrate 22 b of the right branch portion 25.

  Further, for example, as shown in FIG. 1, the right branch portion 25 extends from the substantially right side toward the drawing of the main body portion 24 fixed to the bottom portion of the frame 5, and extends along the side wall that is the outer surface of the frame 5. As described above, the first substrate 16 is bent from the second substrate side to the first substrate side (polarizing plate 12 side), and a part thereof is bonded and fixed to the first overhanging portion 16 that is recessed on the display surface side. Further, the right branch portion 25 is extended further ahead of the portion that is bonded and fixed as shown in FIG. 1, for example, and a connector (not shown) for electrically connecting to an external circuit at the end portion of the right branch portion 25, for example. Etc. are provided.

  Accordingly, by arranging a part of the right branching portion 25 of the flexible substrate 3 in the first overhanging portion 16 that is recessed by one step from the display surface, space can be saved and the liquid crystal display device 1 can be made thinner.

  Further, the wiring pattern 23b on the right branch portion 25 is broken in the middle by folding the right branch portion 25 so that it wraps around from the second substrate side to the first substrate side (polarizing plate 12 side). Can prevent the risk of doing.

  Next, the illuminating device 4 is accommodated in the frame 5 as shown in FIGS. 2 and 3, for example, and is sandwiched between the liquid crystal panel 2 (second substrate 8) and the inner bottom surface of the recess of the frame 5. .

  Specifically, it includes a light source 26, a light guide plate 27, two prism sheets 28 and 29, a diffusion sheet 30, a reflection sheet 31, a light shielding sheet 32, and the like.

  For example, an LED (Light Emitting Diode) is used as the light source 26, and is mounted on the base substrate 22a of the main body 24 as shown in FIGS. Further, the light source 26 is a light receiving surface which is an end surface of the light guide plate 27 on the second projecting portion 17 side of the first substrate 7 when the main body 24 is bent so as to cover the opening of the frame 5 as shown in FIG. Are arranged so that light from the light source 26 is incident thereon.

  The light guide plate 27 has a substantially rectangular shape as shown in FIGS. 2 and 3, for example, and irradiates the entire diffusion sheet 30 with light incident from the light source 26. The prism sheets 28 and 29 are light guide plates. The brightness of the light emitted from 27 is improved.

  Further, for example, as shown in FIGS. 2 and 3, the light-shielding sheet 32 is formed in a frame shape in which an opening is formed so that the center portion coincides with at least the display region B that is an area related to the display of the first substrate 7. Thus, the light of the non-display area C that cannot participate in the display of the first overhanging portion 16 or the like is shielded. The light shielding sheet 32 may be configured to reflect light such as black on the liquid crystal panel side and white on the prism sheet side. As a result, light leaked from the light source 26 and the like is reflected by the light shielding sheet 32, and light from the outside is also absorbed by the black surface, and the influence of reflection on the liquid crystal driving IC 20 can be reduced.

  Here, for example, a diffusion sheet 30, two prism sheets 28 and 29, and a light shielding sheet 32 are arranged in this order on the light exit surface side of the light guide plate 27, and reflected on the side opposite to the exit surface of the light guide plate 27. A sheet 31 is disposed. Furthermore, the light guide plate 27, the diffusion sheet 30, the two prism sheets 28 and 29, and the reflection sheet 31 have substantially the same size.

  Next, the frame 5 has a substantially rectangular box shape opened to the liquid crystal panel 2 side, for example, as shown in FIGS. The lighting device 4 and the liquid crystal panel 2 are formed so as to be accommodated. Specifically, the inner bottom surface 34 of the concave portion 33 and, for example, the reflection sheet 31 of the lighting device 4 are bonded and fixed by a double-sided adhesive sheet or the like (not shown).

  1, 2, and 3, the frame 5 is formed in parallel so as to correspond to the inner bottom surface 34 as the bottom and the side surface of the liquid crystal panel 2, and the non-display area C of the liquid crystal panel 2. The first side wall 35 (the side wall on the right side toward the first overhanging part 16 in FIG. 3) and the second side wall 36 (in FIG. 3) that are formed to sandwich the (first overhanging part 16). And a third sidewall 37 on the first projecting portion side of the liquid crystal panel 2 sandwiched between the first and second sidewalls.

  Further, the first side wall 35 has a first side wall recess 38 so as to sandwich the vicinity of the first overhanging portion with the second side wall 36, and the third side wall 37 is located at the approximate center of the third side wall 37. A third side wall recess 40 is formed.

  Here, the first side wall recess 38 is such that the top surface of the first side wall 35 on the display surface side (the surface facing the Z-axis direction in the figure) is near the first overhanging portion 16 as shown in FIG. The right side branch portion 25 of the flexible substrate is recessed in the direction (Z-axis direction in the figure) by the thickness of the right side branch portion 25, and the lateral width of the recess 38 a is formed to be equal to the width of the right side branch portion 25.

  Further, the first side wall recess 38 has an outer surface (a surface facing the X-axis direction in the drawing) sandwiched between the recess on the upper surface side and the bottom surface on the opposite side, and also faces inward from the outer surface (X-axis direction in the drawing). The right branch portion 25 is recessed by a thickness, and the lateral width of the recess 38 b is formed to be equal to the width of the right branch portion 25. Accordingly, the right branch portion 25 does not protrude from the first side wall 35 of the frame 5 due to the attachment of the right branch portion 25, and the liquid crystal display device 1 can be downsized, and the right branch portion 25 can be easily positioned.

  Further, the third side wall recess 40 is configured such that the upper surface of the third side wall 37 on the display surface side (the surface facing the Z-axis direction in the figure) is substantially in the vicinity of the center as shown in FIGS. The first substrate 7, the external terminal 21, and the flexible substrate body 24 have a total thickness that is recessed toward the Z-axis direction in the drawing, and the width of the recess 40 a is the width of the body 24. It is formed to be minutes.

  The third side wall recess 40 also has an outer surface (a surface facing the Y-axis direction in the figure) sandwiched between a recess on the upper surface side and a bottom surface on the opposite side from the outer surface to the inner side (Y-axis direction in the figure). The main body 24 is recessed by a thickness, and the lateral width of the recess 40 b is formed to be equal to the width of the main body 24. Thereby, the liquid crystal display device 1 can be miniaturized without the main body 24 protruding from the third side wall 37 of the frame 5 due to the attachment of the main body 24 of the flexible substrate 3, and the positioning of the main body 24 is facilitated.

  Further, the inner bottom surface 34 is provided with an opening 41 so as to substantially overlap the second overhanging portion 17 as shown in FIGS. 2 and 3, for example.

  2, the opening 41 is covered from the outside of the frame 5 by the main body 24, and the light source 26 just mounted on the main body 24 is inserted into the frame from the opening 41 to guide the light guide plate. 27 is formed so as to be disposed on a light receiving surface (not shown).

  Next, as shown in FIGS. 1 and 2, the flexible substrate 3 has a main body portion 24 electrically connected to the external terminal 21 of the first substrate 7, for example, from a recess 40 a on the upper surface side of the third side wall recess 40. Once extended to the outside of the frame 5, it is bent to the second substrate side (liquid crystal side) and passes through the recess 40 b on the outer surface of the third side wall recess 40 as it is. Furthermore, the main body 24 wraps around the bottom of the frame 5 from the lower surface side of the third side wall recess 40 to cover the opening 41, and the end of the main body 24 is bonded to the opposite surface of the inner bottom surface 34. . Of course, the main body 24 is also bonded to the contact surface with the other third side wall recesses 40 and the like.

  Further, the right branch portion 25 branched from the main body 24 extends, for example, from the side opposite to the upper surface side of the first side wall recess 38 to the outside of the frame 5 as shown in FIG. 1 and FIG. It adheres along the recess 38b on the outer surface.

  Further, the right branch portion 25 bonded to the outer recess 38b is bent from the second substrate side to the first substrate side (polarizing plate 12 side), and the upper side recess 38a of the first side wall recess 38 is connected to the inside of the frame 5. Returning to FIG. 1, a part of the first overhanging portion 16 is disposed and bonded to the surface on the right side of the center in the X-axis direction in FIG.

  Further, the tip of the right branch 25 extends from the recess 40a on the upper surface side of the third side wall recess 40 over the main body 24 to the outside of the frame 5 as shown in FIG. Note that the distal end portion is electrically connected to an external circuit (not shown) by, for example, a connector.

  In addition, although the opening part 41 mentioned above is formed as a structure where the flexible substrate side of the bottom face (internal bottom face) of the frame 5 is cut out as shown in FIGS. 2 and 3, it is not limited to this. What is necessary is just to provide the part which the flame | frame 5 does not exist in the part corresponding to the light source 26, such as a hole, a notch, and a substantially rectangular shape.

  Further, the depressions on the upper surface side and the outer surface of the first sidewall recess 38 and the third sidewall recess 40 described above are recessed with substantially the same size as the thickness and width of the right branch portion 25 and the main body portion 24, respectively. However, the present invention is not limited to this, and for example, it may of course be slightly larger than those sizes. Thereby, some errors can be covered, and the manufacturing cost can be reduced.

  Further, the portions of the first and second side walls 35 and 36 where the flexible substrate 3 is applied are partially cut, and the liquid crystal panel 2 is configured such that there is no step between the display side surface and each side wall upper surface. Is preferred. Thereby, it is possible to prevent the flexible substrate 3 that is an adhesive base material from floating from the surface of the first overhanging portion 16 and the like of the liquid crystal panel 2.

  (Manufacturing method of liquid crystal display device)

  Next, the manufacturing method of the liquid crystal display device 1 configured as described above will be described focusing on the process of bonding the flexible substrate 3 to the liquid crystal panel 2 and the frame 5.

  FIG. 4 is an explanatory view showing a state in which the lighting device and the liquid crystal panel are housed in a frame, and FIG. 5 is an explanatory view showing a state in which the main body of the flexible substrate is bent.

  First, the liquid crystal panel 2 and the illumination device 4 are manufactured and prepared by a known method.

  Next, as shown in FIG. 4, the reflective sheet side of the lighting device 4 is bonded to the inner bottom surface 34 of the frame 5 by a double-sided adhesive sheet (not shown), and the second substrate side of the liquid crystal panel 2 is further disposed on the reflective sheet side. The device 4 and the liquid crystal panel 2 are accommodated in the recess 33 of the frame 5.

  At that time, the main body 24 of the flexible substrate 3 electrically connected to the external terminal 21 of the first substrate 7 through an ACF (not shown) is provided with a recess 40a on the upper surface side of the third sidewall recess 40 as shown in FIG. To once out of the frame 5.

  Then, the main body portion 24 with the right branch portion 25 protruding outside the frame 5 is bent in the direction of the arrow E (second substrate side) shown in FIG. 3 wrap around the bottom of the frame 5 from the lower surface side of the side wall recess 40. 2 and 5, the light source 26 mounted on the main body 24 while covering the opening 41 is inserted from the opening 41 and set on the light receiving surface of the light guide plate 27. The end of the main body 24 is bonded to the end of the opposite side surface of the bottom surface 34 with a double-sided adhesive sheet (not shown).

  At that time, the right branch portion 25 branched from the right side of the main body portion 24 is pulled out from the lower surface side on the first side wall recess 38 side to the outside of the frame 5 as shown in FIG.

  Further, the right branch portion 25 pulled out to the outside of the frame 5 is bent as shown by an arrow F shown in FIG. 5 and adhered to the recess 38b on the outer surface side of the first side wall recess 38, and further from the second substrate side to the first substrate. 1 is returned to the inside of the frame 5 as shown in FIG. 1, and is bonded to a part of the surface of the first overhanging portion 16 of the first substrate 7, and the right side thereof. The leading end of the branch portion 25 passes through the top of the main body portion 24 from the recess 40 a on the upper surface side of the third side wall recess 40 and is drawn out of the frame 5. Note that a connector connected to the outside may be provided at the tip of the right branch portion 25.

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

  As described above, according to the present embodiment, the main body 24 and the right branch portion 25 of the flexible substrate 3 are bent, and a part of the right branch portion 25 is attached to the first extension portion 16 of the first substrate 7 protruding from the polarizing plate 12. Since it is arranged and fixed by adhesion, the right branch portion 25 of the flexible substrate can be arranged in a portion depressed by the amount of the polarizing plate from the polarizing plate 12 serving as the display surface of the liquid crystal display device 1, and at least the amount of the depression is provided in the liquid crystal display The thickness of the device 1 can be reduced.

  In addition, the main body portion 24 of the flexible substrate is bent to the second substrate side, and the right branch portion 25 protruding and extending from the main body portion 24 is bent from the second substrate side to the first substrate side. It is not necessary to fold the portion 25, and the cutting of the wiring pattern 23b on the right branch portion due to the folding can be prevented.

  Further, the main body 24 and the right branch 25 of the flexible substrate 3 are bent along at least a part of the first side wall 35 and the third side wall 37 that are the outer surfaces of the frame 5, and the right branch 25. Is bonded to the first overhanging portion 16, so that the main body portion 24 and the right branching portion 25 wrap around the frame 5, and a part of the right branching portion 25 is attached to the first overhanging portion 16 in the frame. As a result, the first substrate or the like is firmly pressed into the frame, and, for example, the liquid crystal panel 2 can be prevented from jumping out from the frame or from being displaced.

  Further, for example, the first side wall recess and the third side wall in which at least a part of the right branch part 25 and the main body part 24 are accommodated in the first side wall 35 and the third side wall 37, which are the outer surfaces of the frame 5, respectively. Since the concave portions 38 and 40 are provided, the main body portion 24 and the right branch portion 25 can be prevented from protruding from the outer surface of the frame. Thereby, the liquid crystal display device 1 can be further reduced in size and thickness. Further, the main body 24 and the right branch portion 25 can be easily accommodated in the recess, and the positioning of the main body portion 24 and the right branch portion 25 becomes easier.

  Further, the light source 26 is mounted on the main body 24, and the light source 26 is arranged so as to face the end surface of the light guide plate 27 by bending the flexible substrate 3, so that the light source 26 of the flexible substrate 3 is mounted, for example. Since the main body portion 24 can be fixed toward the liquid crystal panel 2 by the right branch portion 25 disposed on the first overhanging portion 16 on the opposite side to the main body portion side, the light guide plate fixed to the liquid crystal panel 2 It is possible to prevent the main body 24 from floating from 27 and the light source 26 to be displaced from the light guide plate 27 in the vertical direction. Therefore, the light emitted from the light source 26 can be reliably incident on the light guide plate 27. Of course, since the right branch portion 25 is bonded to the first overhanging portion 16 that is recessed from the display surface, the thickness of the liquid crystal panel itself can be reduced and space saving can be achieved.

  Moreover, since the opening 41 for inserting the light source 26 is provided at the bottom of the frame 5, the light source 26 can be accurately inserted and arranged from the outside of the frame 5 on the light receiving surface of the light guide plate 27, for example. Display accuracy can be improved. Further, since the light source 26 mounted on the flexible substrate 3 can be inserted into the frame, the space can be saved and the liquid crystal display device 1 can be further miniaturized.

  (Modification 1)

  Next, Modification 1 of the first embodiment of the liquid crystal display device according to the present invention will be described. In the present modification 1, the point that the two branch portions of the flexible substrate are bonded to both side surfaces is different from that of the first embodiment. Therefore, 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 perspective view of a liquid crystal display device according to a first modification, and FIG. 7 is a schematic perspective view of a frame according to the first modification.

  For example, as shown in FIG. 6, the liquid crystal display device 101 includes a liquid crystal panel 2, a flexible substrate 103 as a flexible circuit board electrically connected to the substrate of the liquid crystal panel 2, and further, the liquid crystal panel 2 is irradiated with light (not shown). The lighting device 4 and a frame 105 for holding the liquid crystal panel 2 and the lighting device 4 are included. Here, in addition to the frame 105, other incidental mechanisms are attached to the liquid crystal display device 101 as needed (not shown).

  For example, as shown in FIG. 6, the flexible substrate 103 has a wiring pattern 123 (123a, 123b, 123c) (not shown) formed on a base substrate 122 (122a, 122b, 122c) and a light source 26 and a condenser (not shown). And electronic parts such as ICs are mounted.

  Further, the flexible substrate 103 has a main body 124 and a main body on the side opposite to the external terminal side of the liquid crystal panel 2 so as to be bent from the bottom of the frame 105 toward the first overhanging portion 16 in FIG. Right-side right branch 125 as a first branch projecting and extending from the end of portion 124, and left-side left branch as a second branch projecting and extending from the end of main body 124 126.

  Further, the main body 124 has a main body connection terminal (not shown) formed at the end on the liquid crystal panel side, and is electrically connected to the external terminal 21 of the liquid crystal panel 2 via an ACF (not shown).

  Next, for example, as shown in FIG. 7, the frame 105 has a substantially rectangular box shape opened to the liquid crystal panel 2 side, and has a concave portion 33 on the inner side, and the illumination device 4 and the liquid crystal panel are just in the concave portion 33. 2 is formed.

  6 and 7, the frame 105 is formed in parallel so as to correspond to the inner bottom surface 34 as the bottom and the side surface of the liquid crystal panel 2, and sandwiches the first overhanging portion 16 of the liquid crystal panel 2. The first side wall 35 (the right side wall facing the first overhanging portion 16 in FIG. 6) and the second side wall 136 (the left side facing the first overhanging portion 16 in FIG. 6) are formed. And a third side wall 37 on the first projecting portion side of the liquid crystal panel 2 sandwiched between the first and second side walls.

  Here, a second side wall recess 139 is formed in the second side wall 136 so as to correspond to the first side wall recess 38.

  In the second side wall recess 139, the upper surface (surface facing the Z-axis direction in the figure) of the second side wall 136 on the display surface side is, for example, as shown in FIG. (The Z-axis direction) of the flexible substrate is recessed by the thickness of the left branch portion 126, and the lateral width of the recess 139 a is formed to be equal to the width of the left branch portion 126.

  The second side wall recess 139 also has an outer surface sandwiched between upper and lower surfaces thereof (on the side opposite to the outer surface of the first side wall recess) from the outer surface to the inside (opposite direction to the first side wall recess). The width of the recess 139b is formed to be equal to the width of the left branch portion 126. As a result, the left branch portion 126 does not protrude from the second side wall 136 of the frame 105 due to the attachment of the left branch portion 126, so that the liquid crystal display device 101 can be miniaturized and the left branch portion 126 can be easily positioned.

  Next, the flexible substrate 103 will be described in further detail in relation to the frame 105 described above.

  First, for example, as shown in FIGS. 6 and 7, the main body 124 extends from the recess 40a on the upper surface side of the third side wall recess 40 of the frame 105 to the outside of the frame 105 as in the first embodiment, 2 is bent to the side of the substrate and passes through the recess 40 b on the outer surface of the third side wall recess 40, and further wraps around the bottom of the frame 105 from the lower surface side of the third side wall recess 40 to cover the opening 41. Bonded to the opposite surface.

  Next, for example, as shown in FIGS. 6 and 7, the right branch portion 125 branches from the right side of the main body portion 124 that covers the opening 41, and the wiring pattern provided on the base substrate 122 a of the main body portion 124. A part of 123a is electrically connected to the wiring pattern 123b provided on the base substrate 122b of the right branch portion.

  Further, as shown in FIG. 6, for example, the right branch portion 125 once bends out of the frame 105 from the lower surface side opposite to the upper surface side of the first side wall recess 38, and forms a recess 38 b on the outer surface of the first side wall recess 38. Then, it bends from the second substrate side to the first substrate side, returns from the recess 38a on the upper surface side of the first side wall recess 38 to the inside of the frame, and to the center right side of the first overhanging portion 16 that is also a non-display area of the liquid crystal panel 2. It is glued. Further, the right branch portion 125 is partly bonded to the first overhang portion 16, and further extends from the upper surface side recess 40 a of the third side wall recess 40 over the main body portion 124 to the outside of the frame 105. .

  Next, the left branch portion 126 branches from the left side of the main body portion 124 covering the opening 41 as shown in FIG. 6, for example, and one of the wiring patterns 123 a provided on the base substrate 122 a of the main body portion 124. The portion is electrically connected to the wiring pattern 123c provided on the base substrate 122c of the left branch portion.

  Further, as shown in FIG. 6, for example, the left branching portion 126 once bends out of the frame 105 from the lower surface side opposite to the upper surface side of the second side wall recess 139, and forms a recess 139 b on the outer surface of the second side wall recess 139. Then, it bends from the second substrate side to the first substrate side, returns from the recess 139a on the upper surface side of the second side wall recess 139 to the inside of the frame, and is adhered to the center left side of the overhanging portion 16 that is also a non-display area of the liquid crystal panel 2. ing. Further, after the left branching portion 126 is partially bonded to the first overhanging portion 16, the left branching portion 126 is further extended from the upper surface side recess 40 a of the third side wall recess 40 over the main body portion 124 to the outside of the frame 105. .

  In addition, although the upper surface side of the 2nd side wall recessed part 139 and the dent of the outer surface were dented with the magnitude | size substantially the same as the thickness and width | variety of the left side branch part 126, it is not restricted to this, For example, it is slightly smaller than those magnitude | size Of course, it may be larger. As a result, some errors can be covered.

  Further, it is preferable that the portion of the second side wall 136 where the flexible substrate 103 is applied is cut off so that there is no step between the display side surface of the liquid crystal panel 2 and the upper surface of the side wall. Thereby, it is possible to prevent the flexible substrate 103 from floating from the surface of the first projecting portion 16 or the like of the liquid crystal panel 2.

  As described above, according to this modification, the right branch portion 125 is bent along the outer surface of the right side that is one side of the frame 105, and a part of the right branch portion 125 is bonded to the first overhang portion 16. The left branch portion 126 is bent along the outer surface of the left side that is the other side opposite to the right side of the frame 105, and a part of the left branch portion 126 is bonded to the first overhang portion 16. Therefore, the function as the flexible substrate 103 can be further expanded to each branch portion while reducing the thickness and size of the liquid crystal display device 101.

  Further, for example, part of the left and right branch portions are bonded from both sides of the frame 105 to the first overhanging portion 16 in the frame, so that the first substrate and the like are further firmly pressed into the frame, and the liquid crystal panel 2 This makes it possible to more firmly prevent the frame 105 from jumping out or being displaced.

  (Modification 2)

  Next, a second modification of the first embodiment of the liquid crystal display device according to the present invention will be described. In the second modification, the point that the right branch portion is bonded onto the left branch portion is different from the first embodiment, and therefore, this point will be mainly described. In addition, about the component which is common in the component of 1st Embodiment and the modification 1, the code | symbol same as the component of 1st Embodiment and the modification 1 is attached | subjected, and the description is abbreviate | omitted.

  FIG. 8 is a schematic perspective view of a liquid crystal display device according to the second modification.

  For example, as shown in FIG. 8, the liquid crystal display device 201 includes a liquid crystal panel 2, a flexible substrate 203 as a flexible circuit board electrically connected to the liquid crystal panel 2, and a lighting device (not shown) that irradiates the liquid crystal panel 2 with light. 4 and a frame 105 or the like for holding the liquid crystal panel 2 and the lighting device 4. Here, in addition to the frame 105, other incidental mechanisms are attached to the liquid crystal display device 201 as needed (not shown).

  For example, as shown in FIG. 8, the flexible substrate 203 has a wiring pattern 223 (223a, 223b, 223c) (not shown) formed on a base substrate 222 (222a, 222b, 222c) and a light source 26 and a condenser (not shown). And electronic parts such as ICs are mounted.

  In addition, the flexible substrate 203 has a main body 224 and a main body on the side opposite to the external terminal side of the liquid crystal panel 2 so as to be bent from the bottom of the frame 105 toward the first overhanging portion 16 in FIG. Right-side right branch 225 as a first branch projecting and extending from the end of the part 224, and left-hand left branch as a second branch projecting and extending from the end of the main body 224 226.

  Furthermore, the main body 224 has a main body connection terminal (not shown) formed at the end on the liquid crystal panel side, and is electrically connected to the external terminal 21 of the liquid crystal panel 2 via an ACF (not shown).

  Further, for example, as shown in FIG. 8, the main body 224 extends from the recess 40a on the upper surface side of the third side wall recess 40 of the frame 105 to the outside of the frame 105 and bends to the second substrate side as it is. The third side wall recess 40 travels through the outer surface recess 40b, and further goes from the lower surface side of the third side wall recess 40 to the bottom of the frame 105 to cover the opening 41 (not shown), on the opposite surface of the inner bottom surface 34 of the frame 105. It is glued.

  Next, for example, as shown in FIG. 8, the left branch portion 226 branches from the left side of the main body 224 that covers the opening 41, and one of the wiring patterns 223 a provided on the base substrate 222 a of the main body 224. The portion is electrically connected to the wiring pattern 223c provided on the base substrate 222c of the left branch portion.

  Further, for example, as shown in FIG. 8, the left branching portion 226 once bends out of the frame 105 from the lower surface side opposite to the upper surface side of the second side wall recess 139, and forms a recess 139b on the outer surface of the second side wall recess 139. Then, it is further bent from the second substrate side to the first substrate side and returned from the recess 139a on the upper surface side of the second side wall recess 139 into the frame.

  The left branch 226 extends from the vicinity of the second side wall recess 139 of the projecting portion 16 which is also a non-display area of the liquid crystal panel 2 to the vicinity of the first side wall recess 38 on the right side of the center, and is bonded.

  Next, for example, as shown in FIG. 8, the right branch portion 225 branches from the right side of the main body 224 that covers the opening 41, and one of the wiring patterns 223 a provided on the base substrate 222 a of the main body 224. The portion is electrically connected to the wiring pattern 223b provided on the base substrate 222b of the right branch portion.

  Further, as shown in FIG. 8, for example, the right branching portion 225 once bends out of the frame 105 from the lower surface side opposite to the upper surface side of the first side wall recess 38, and forms a recess 38 b on the outer surface of the first side wall recess 38. Then, it is further bent from the second substrate side to the first substrate side and returned from the recess 38a on the upper surface side of the first side wall recess 38 into the frame.

  The right branch portion 225 is bonded on the left branch portion 226 so as to cover a portion of the left branch portion 226 bonded to the first projecting portion 16 that is closer to the center right in the X direction in the figure. Further, the right branch 225 is partially bonded to the first overhang 16 and the left branch 226, and further passes from the upper surface side recess 40a of the third side wall recess 40 over the main body 224 to the outside of the frame 105. Has been extended.

  In the above description, the right branch 225 is bonded to the left branch 227. However, the present invention is not limited to this. For example, the left branch 226 is bonded to the right branch 225. May be.

  As described above, according to the present modification, a part of the right branch part 225 is bonded to the left branch part 226 so as to cover at least a part of the left branch part 226 bonded to the first overhang part 16. Even if the two branch portions overlap, the liquid crystal display device 201 can be reduced in thickness and size.

  Further, the right branch 225 can fix the left branch 226 while pulling the left branch 226, for example, and the left branch 226 is more strongly wrapped around the outer surface of the frame 105, and the liquid crystal panel 2 protrudes from the frame 105 and is displaced more firmly. Etc. can be prevented.

  (Second Embodiment)

  Next, a second embodiment of the liquid crystal display device according to the present invention will be described. This embodiment is different from the first embodiment in that the main body portion is arranged in the first overhanging portion and the branch portion is arranged in the second overhanging portion. 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 display device according to a second embodiment of the present invention, FIG. 10 is a cross-sectional view taken along the line GG of FIG. 9 (the liquid crystal driving IC and the light source are not cut), and FIG. FIG. 3 is a schematic perspective view of a frame.

  (Configuration of liquid crystal display device)

  For example, as shown in FIGS. 9, 10, and 11, the liquid crystal display device 401 emits light to the liquid crystal panel 2, a flexible substrate 403 as a flexible circuit board connected to the substrate of the liquid crystal panel 2, and the liquid crystal panel 2. And a frame 405 for holding the liquid crystal panel 2 and the lighting device 404. Here, in addition to the frame 405, other incidental mechanisms are attached to the liquid crystal display device 401 as needed (not shown).

  For example, as shown in FIGS. 9, 10, and 11, the flexible substrate 403 has a wiring pattern 423 (423a, 423b) (not shown) formed on a base substrate 422 (422a, 422b) and a capacitor, IC, etc. (not shown). The electronic parts are mounted. Here, the base substrate 422 (422a, 422b) is a flexible film-like member, and the wiring pattern 423 (423a, 423b) is made of, for example, copper. Although not shown, a double-sided adhesive sheet is bonded to the surface fixed to the frame 405, for example. Thereby, the flexible substrate 403 can prevent the liquid crystal panel or the like from jumping out from the frame 405 or the positional deviation.

  The flexible substrate 403 further includes a main body 424 and a right branch 425 as a branch projecting from the main body 424. The right branch 425 is electrically connected to an external circuit (not shown). Yes.

  Further, the main body 424 has a main body connection terminal (not shown) formed at the end on the liquid crystal panel side, and is electrically connected to the external terminal 21 of the liquid crystal panel 2 via an ACF (not shown).

  Further, as shown in FIGS. 9, 10, and 11, for example, the main body 424 has a first side along the outer wall of the frame 405, and the side opposite to the side connected to the first substrate 7 once comes out of the frame 405. The first overhanging portion 16 is bent and bent around the overhanging portion and is bonded and fixed to the first overhanging portion 16 which is depressed on the display surface side.

  Further, for example, as shown in FIGS. 9 and 10, the right branch portion 425 branches from the right side of the main body portion 424, and a part of the wiring pattern 423a provided on the base substrate 422a of the main body portion 424 is on the right side. The branch part 425 is electrically connected to a wiring pattern 423b provided on the base substrate 422b.

  Further, for example, as shown in FIG. 9 and FIG. 10, the right branch portion 425 extends from the right side toward the drawing of the main body portion 424 fixed to the first overhanging portion 16, and extends on the outer surface of the frame 405. It is bent along the side wall from the first overhanging portion side to the second overhanging portion side, and a part thereof is bonded and fixed to the second overhanging portion 17.

  Specifically, the right branching portion 425 that wraps around to the second overhanging portion side fixes and protects the liquid crystal driving IC 20 mounted on the second overhanging portion 17 as shown in FIGS. 9 and 10, for example. Part of the molding material (not shown) is bonded and fixed to the second overhanging portion 17.

  Further, for example, as shown in FIG. 9, the right branch portion 425 is further extended from the opening portion 441 of the frame 405 at the further end of the portion that is bonded and fixed to the second overhang portion 17, A connector or the like (not shown) for electrically connecting to an external circuit is provided.

  Accordingly, by arranging a part of the main body portion 424 of the flexible substrate 3 in the first overhanging portion 16 that is recessed by one step from the display surface, space can be saved and the liquid crystal display device 401 can be made thinner.

  Further, the right branch portion 425 is bent so as to wrap around from the first overhang portion side to the second overhang portion side, thereby preventing a risk that the wiring pattern 423b on the right branch portion 425 is broken in the middle due to small folding. be able to.

  Next, the illumination device 404 is housed in a frame 405 as shown in FIG. 10, for example, and is sandwiched between the liquid crystal panel 2 and the inner bottom surface of the recess of the frame 405.

  Specifically, it includes a light source 426, a light guide plate 27, two prism sheets 28 and 29, a diffusion sheet 30, a reflection sheet 31, a light shielding sheet 32, and the like.

  For example, an LED is used as the light source 426, and the light source 426 is mounted on the inner bottom surface of the frame 405 so that light from the light source 426 is incident on the light receiving surface which is the end surface of the light guide plate 27 as shown in FIG.

  Next, for example, as shown in FIGS. 9, 10, and 11, the frame 405 has a substantially rectangular box shape opened to the liquid crystal panel 2 side, and has a recess 433 on the inner side. The lighting device 404 and the liquid crystal panel 2 are formed so as to be accommodated. Specifically, the inner bottom surface 434 of the recess 433 and, for example, the reflection sheet 31 of the lighting device 404 are bonded and fixed by a double-sided adhesive sheet or the like (not shown).

  The frame 405 is formed in parallel so as to correspond to the inner bottom surface 434 as a bottom portion and the side surface of the liquid crystal panel 2 as shown in FIGS. 9, 10, and 11, and the non-display area C of the liquid crystal panel 2. Opposing first side walls 435 (right side wall toward the first overhanging portion 16 in FIG. 9) and second side walls 36 (in FIG. 9, And a third side wall 437 on the first overhanging portion side of the liquid crystal panel 2 sandwiched between the first and second side walls.

  Further, the first side wall 435 has a first side wall recess 438 so as to sandwich the vicinity of the first overhanging portion with the second side wall 36 as shown in FIG. 11, for example. An opening formed in an inner bottom surface, which will be described later, is formed following the substantially central lower portion, and a third side wall recess 440 is provided in the upper portion.

  Here, the first side wall recess 438 has an upper surface of the first side wall 435 on the display surface side (a surface facing in the Z-axis direction in the figure) near the first overhanging portion 16 as shown in FIGS. 9 and 11, for example. The right side branching portion 425 of the flexible substrate is recessed by the thickness from the top surface toward the bottom surface direction (Z-axis direction in the drawing), and the lateral width of the recess 438a is formed to be the width of the right side branching portion 425. ing.

  The first side wall recess 438 also has an outer surface (a surface facing the X-axis direction in the drawing) sandwiched between a recess on the upper surface side and a bottom surface on the opposite side from the outer surface to the inner side (X-axis direction in the drawing). The right branch portion 425 is recessed by a thickness, and the lateral width of the recess 438b is formed to be equal to the width of the right branch portion 425. As a result, the right branch 425 does not protrude from the first side wall 435 of the frame 405 by sticking the right branch 425, and the liquid crystal display device 401 can be miniaturized, and the right branch 425 can be easily positioned. An opening 441 formed on the inner bottom surface of the frame 405 is provided below the first side wall recess 438, for example, as shown in FIG.

  Further, the third side wall recess 440 has a top surface (a surface facing the Z-axis direction in the drawing) of the third side wall 437 on the display surface side, for example, as shown in FIG. In the direction of the Z axis) of the main body portion 424 of the flexible substrate or the thickness of the polarizing plate 12, and the width of the recess 440a is formed to be equal to the width of the main body portion 424. ing.

  The third side wall recess 440 also has an outer surface (a surface facing the Y-axis direction in the figure) sandwiched between the recess on the upper surface side and the bottom surface on the opposite side from the outer surface to the inner side (Y-axis direction in the figure). The body portion 424 is recessed by the thickness, and the width of the recess 440b is formed to be the width of the body portion 424. Accordingly, the liquid crystal display device 401 can be miniaturized without the main body portion 424 protruding from the third side wall 437 of the frame 405 by the attachment of the main body portion 424 of the flexible substrate 403, and the positioning of the main body portion 424 is facilitated.

  Further, an opening 441 is provided on the inner bottom surface 434 so as to substantially overlap the second overhanging portion 17 as shown in FIGS. 10 and 11, for example, and a light source 426 is mounted in the vicinity of the opening 441.

  Next, as shown in FIGS. 9 and 10, the flexible substrate 403 has a main body portion 424 electrically connected to the external terminal 21 of the first substrate 7, for example, from an opening on the lower surface side of the third side wall recess 440. Once extended to the outside of the frame 405, it is bent toward the first overhanging portion, and is transmitted through the recess 440b on the outer surface of the third side wall recess 440 as it is. Further, the main body portion 424 enters the frame 405 from the upper surface side of the third side wall recess 440, and a part of the main body portion 424 is disposed on the first projecting portion 16 and fixedly bonded thereto. Of course, the main body 424 is also bonded to the contact surface with the other third side wall recess 440 and the like.

  Further, for example, as shown in FIGS. 9 and 10, the right branch portion 425 branched from the main body portion 424 once extends from the recess 438 a on the upper surface side of the first side wall recess 438 to the outside of the frame 405, and directly remains as it is. The outer surface is bonded through the dent 438b.

  Further, the right branch 425 bonded to the outer recess 438b is bent from the first overhanging portion side to the second overhanging portion side, and into the frame 405 from the opening opposite to the upper surface side of the first side wall recess 438. Returning, a part of the liquid crystal driving IC 20 mounted on the second overhanging portion 17 and a mold material for fixing and protecting them are disposed on the second overhanging portion 17 and bonded and fixed.

  Further, for example, as shown in FIG. 9, the tip of the right branch 425 passes from the opening on the lower surface side of the third side wall recess 440 to the outside of the frame 405 through the lower part of the main body 424 (opening side in FIG. 9). Will be extended. Note that the distal end portion is electrically connected to an external circuit (not shown) by, for example, a connector.

  The opening 441 described above is formed as a structure in which the flexible substrate side of the bottom surface (internal bottom surface) of the frame 405 is cut off as shown in FIG. 11, for example. However, the present invention is not limited to this. It may be a notch, a substantially rectangular shape, or the like.

  Further, the recesses on the upper surface side and the outer surface of the first side wall recess 438 and the third side wall recess 440 described above are recessed with substantially the same size as the thickness and width of the right branch portion 425 and the main body portion 424, respectively. However, the present invention is not limited to this, and for example, it may of course be slightly larger than those sizes. Thereby, some errors can be covered, and the manufacturing cost can be reduced.

  Further, it is preferable that the portion of the first side wall 435 where the flexible substrate 403 is applied is cut off so that there is no step between the display side surface of the liquid crystal panel 2 and the upper surface of the side wall. Thereby, it is possible to prevent the flexible substrate 403 from floating from the surface of the first projecting portion 16 or the like of the liquid crystal panel 2.

  (Manufacturing method of liquid crystal display device)

  Next, a method for manufacturing the liquid crystal display device 401 configured as described above will be briefly described focusing on the process of bonding the flexible substrate 403 to the liquid crystal panel 2 and the frame 405.

  First, the liquid crystal panel 2 and the lighting device 404 are manufactured and prepared by a known method.

  Next, the reflective sheet side of the lighting device 404 is bonded to the inner bottom surface 434 of the frame 405 with a double-sided adhesive sheet, and the second substrate side of the liquid crystal panel 2 is further disposed thereon, and the lighting device 404 and the liquid crystal panel 2 are attached to the frame. 405 is accommodated in the recess 433.

  At that time, the main body 424 of the flexible substrate 403 electrically connected to the external terminal 21 of the first substrate 7 through the ACF (not shown) is temporarily removed from the opening on the lower surface side of the third side wall recess 440 from the frame 405. Put out.

  Then, the main body 424 with the right branching portion 425 protruding outside the frame 405 is bent toward the first overhanging portion, and the end surface of the main body 424 is framed from the upper surface side of the third side wall recess 440 of the frame 405. Get inside. And the edge part of the main-body part 424 is adhere | attached on the 1st overhang | projection part 16 with a double-sided adhesive sheet.

  At that time, the right branch portion 425 branched from the right side of the main body portion 424 is drawn out of the frame 405 from the recess 438a on the first side wall recess 38 side.

  Further, the right branch portion 425 pulled out to the outside of the frame 405 is bent and adhered to the recess 438b on the outer surface side of the first side wall recess 438, and further bent from the first overhanging portion side to the second overhanging portion side. It returns to the inside of the frame 405 from the opening on the lower surface side of 438.

  Then, a part of the right branching portion 425 is disposed and fixed to the second overhanging portion 17 from above the liquid crystal driving IC 20 mounted on the second overhanging portion 17 and the mold material for fixing and protecting them.

  Further, the tip of the right branch 425 is drawn out of the frame 405 through the opening on the lower surface side of the third side wall recess 440 under the main body 424. Note that a connector connected to the outside may be provided at the tip of the right branch portion 425.

  Above, description of the manufacturing method of the liquid crystal display device 401 is complete | finished.

  As described above, according to the present embodiment, the side opposite to the side electrically connected to the external terminal 21 of the main body 424 of the flexible substrate 403 is bent to the first overhanging portion side, and the main body is attached to the first overhanging portion 16. A part of the part 424 is disposed and bonded, the right branch part 425 is bent from the first projecting part side to the second projecting part side, and a part of the right branch part 425 is disposed and adhered to the second projecting part 17. Therefore, the flexible substrate 403 is disposed on the first substrate side, and drivers and the like for driving the liquid crystal can be collected, and the liquid crystal display device 401 can be further downsized and thinned. In addition, since a part of the main body 424 of the flexible substrate 403 is disposed in the first overhanging portion 16, the thickness of the liquid crystal display device 401 is reduced by an amount that is at least recessed from the display side surface of the polarizing plate 12. Is possible.

  Further, the main body portion 424 and the right branch portion 425 of the flexible substrate 403 are bent along at least a part of the first side wall 435 and the third side wall 437 that are the outer surfaces of the frame 405, and the main body portion 424. Part of the main body 424 is bonded to the first overhanging portion 16 in the frame while the main body 424 and the right branching portion 425 wind the frame 405 around. As a result, the first substrate or the like is firmly pressed into the frame, and for example, the liquid crystal panel 2 can be firmly prevented from jumping out from the frame 405 or from being displaced.

  Further, the main body 424 of the flexible substrate 403 is bent toward the first overhanging portion, and the right branch portion 425 protruding and extending from the main body 424 is bent from the first overhanging portion side into the second overhanging portion side. For example, it is not necessary to fold the main body portion 424 or the right branch portion 425, and cutting of the wiring pattern due to folding can be prevented.

  In addition, for example, the first side wall 435 and the third side wall 437 that are the outer surfaces of the frame 405 include a first side wall recess and a third side wall in which at least a part of the right branch portion 425 and the main body portion 424 are accommodated. Since the concave portions 438 and 440 are provided, the main body portion 424 and the right branch portion 425 can be prevented from protruding from the outer surface of the frame. As a result, the liquid crystal display device 401 can be further reduced in size and thickness. Further, the main body 424 and the right branch 425 can be easily accommodated in the recess, and the positioning of the main body 424 and the right branch 425 becomes easier.

  (Modification 3)

  Next, a third modification of the second embodiment of the liquid crystal display device according to the present invention will be described. The third modification is different from the second embodiment in that the right branch portion is arranged avoiding the liquid crystal driving IC, and this point will be mainly described. In addition, about the component which is common in the component of 1st and 2nd embodiment, the code | symbol same as the component of 1st and 2nd embodiment is attached | subjected, and the description is abbreviate | omitted.

  12 is a schematic perspective view of a liquid crystal display device according to Modification 3. FIG. 13 is a cross-sectional view taken along line HH of FIG. 12 (the light source is not cut), and FIG. 14 is a schematic perspective view of a frame.

  For example, as shown in FIGS. 12, 13 and 14, the liquid crystal display device 501 irradiates light to the liquid crystal panel 502, a flexible substrate 503 as a flexible circuit board connected to the substrate of the liquid crystal panel 502, and the liquid crystal panel 502. A lighting device 404, a frame 505 for holding the liquid crystal panel 502 and the lighting device 404, and the like. Here, in addition to the frame 505, other incidental mechanisms are attached to the liquid crystal display device 501 as needed (not shown).

  The liquid crystal panel 502 includes, for example, a first substrate 7 and a second substrate 8 which are substrates bonded together with a sealing material 6 as shown in FIGS. 12 and 13, and an electro-optical material enclosed in a gap between both substrates, for example, STN (Super Twisted Nematic) type liquid crystal 9 is housed in a frame 505 so that the first substrate 7 side is the display surface.

  Further, the first substrate 7 has a second overhanging portion 17 that protrudes outward (Y-axis direction in FIG. 13) with respect to the second substrate 8.

  The second overhanging portion 17 includes, for example, a segment electrode wiring 18 and a common electrode wiring 19 (not shown) extending from the region where the segment electrode 10 and the common electrode 13 are surrounded by the sealing material 6 to the second overhanging portion 17, and the electrodes thereof. For example, a liquid crystal driving IC 520 that supplies a liquid crystal driving current to the wiring is provided.

  For example, as shown in FIGS. 12 and 13, the liquid crystal driving IC 520 is mounted on the second overhanging portion 17 so as to be offset from the second side wall 36 on one side of the first substrate 7 when viewed from the first overhanging portion 16 side. ing. Thereby, a space will be vacated on the first side wall 435 side which is the opposite side of the one side.

  For example, as shown in FIGS. 12, 13, and 14, the flexible substrate 503 has a wiring pattern 523 (523a, 523b) (not shown) formed on a base substrate 522 (522a, 522b) and a capacitor, IC, etc. (not shown). The electronic parts are mounted. Here, the base substrate 522 (522a, 522b) is a flexible film-like member, and the wiring pattern 523 (523a, 523b) is made of, for example, copper. Although not shown, a double-sided adhesive sheet is bonded to the surface fixed to the frame 505 or the like, for example. Accordingly, the flexible substrate 503 can prevent the liquid crystal panel or the like from jumping out from the frame 505 or misalignment.

  The flexible substrate 503 further includes a main body 524 and a right branch 525 as a branch projecting from the main body 524. The right branch 525 is electrically connected to an external circuit (not shown). Yes.

  The main body 524 is provided with a main body connection terminal (not shown) at the end on the liquid crystal panel side, and is electrically connected to the external terminal 21 of the liquid crystal panel 502 via an ACF (not shown).

  Further, as shown in FIGS. 12, 13, and 14, for example, the main body 524 has a side opposite to the side connected to the first substrate 7 once outside the frame 505, and is first along the outer wall of the frame 505. The first overhanging portion 16 is bent and bent around the overhanging portion and is bonded and fixed to the first overhanging portion 16 which is depressed on the display surface side.

  For example, as shown in FIGS. 12 and 13, the right branch portion 525 branches from the right side of the main body portion 524, and a part of the wiring pattern 523a provided on the base substrate 522a of the main body portion 524 is on the right side. The branch part 525 is electrically connected to a wiring pattern 523b provided on the base substrate 522b.

  Further, for example, as shown in FIGS. 12 and 13, the right branch portion 525 extends from the right side toward the drawing of the main body portion 524 fixed to the first overhang portion 16, and extends on the outer surface of the frame 505. It is bent along the side wall from the first overhanging portion side to the second overhanging portion side, and a part thereof is bonded and fixed to the second overhanging portion 17.

  Specifically, the right branching portion 525 that wraps around to the second overhanging portion side is, for example, as shown in FIGS. 9 and 10, so as to avoid the liquid crystal driving IC 520 mounted on the second overhanging portion 17. A part of the portion 17 is bonded and fixed.

  Further, as shown in FIGS. 12 and 13, for example, as shown in FIGS. 12 and 13, the right branch portion 525 is further extended outward from the opening portion of the frame 505 at the tip of the portion that is bonded and fixed to the second overhang portion 17. A connector (not shown) for electrically connecting to an external circuit is provided at the end.

  Accordingly, by arranging a part of the main body portion 524 of the flexible substrate 3 in the first overhanging portion 16 that is recessed by one step from the display surface, space can be saved and the liquid crystal display device 501 can be made thinner.

  Further, the right branch portion 525 is bent so as to wrap around from the first overhang portion side to the second overhang portion side, thereby preventing a risk that the wiring pattern 523b on the right branch portion 525 is broken in the middle due to small folding. be able to.

  Next, the frame 505 has a substantially rectangular box shape opened to the liquid crystal panel 502 side, for example, as shown in FIGS. The lighting device 404 and the liquid crystal panel 502 are formed so as to be accommodated. Specifically, the inner bottom surface 534 of the concave portion 533 and, for example, the reflection sheet 31 of the lighting device 404 are bonded and fixed by a double-sided adhesive sheet or the like (not shown).

  12, 13 and 14, the frame 505 is formed in parallel so as to correspond to the inner bottom surface 534 as the bottom and the side surface of the liquid crystal panel 502, and the non-display area C of the liquid crystal panel 2. The first side wall 435 (the side wall on the right side toward the first overhang part 16 in FIG. 12) and the second side wall 36 (in FIG. 12, And a third side wall 537 on the first overhanging portion side of the liquid crystal panel 2 sandwiched between the first and second side walls.

  Furthermore, the first side wall 435 has a first side wall recess 438 so as to sandwich the vicinity of the first overhanging portion with the second side wall 36 as shown in FIG. 14, for example. An opening formed in the inner bottom surface, which will be described later, is formed following the lower portion of the third side wall 537 slightly to the left, and a third side wall recess 540 is provided in the upper portion.

  The third side wall recess 540 has a top surface (a surface facing the Z-axis direction in the drawing) of the third side wall 537 on the display surface side, for example, as shown in FIG. The main body portion 524 of the flexible substrate or the thickness of the polarizing plate 12 is recessed toward the Z-axis direction), and the width of the recess 540a is formed to be equal to the width of the main body portion 524. Yes.

  The third side wall recess 540 has an outer surface (a surface facing the Y-axis direction in the drawing) sandwiched between the recess on the upper surface side and the bottom surface on the opposite side, and also faces inward from the outer surface (Y-axis direction in the drawing). The body portion 524 is recessed by a thickness, and the lateral width of the recess 540 b is formed to be the width of the body portion 524. Thereby, the main body 524 does not protrude from the third side wall 537 of the frame 505 by sticking the main body 524 of the flexible substrate 503, and the liquid crystal display device 501 can be downsized, and the positioning of the main body 524 is facilitated.

  Further, an opening 541 is provided on the inner bottom surface 534 so as to substantially overlap the second overhanging portion 17 as shown in FIGS. 13 and 14, for example, and a light source 426 is mounted in the vicinity of the opening 541.

  Next, as shown in FIGS. 12 and 13, the flexible substrate 503 has a body portion 524 electrically connected to the external terminal 21 of the first substrate 7, for example, an opening 541 on the lower surface side of the third side wall recess 540. To the outside of the frame 505 and bent to the first overhanging portion side, and is transmitted through the recess 540b on the outer surface of the third side wall recess 540 as it is. Further, the main body portion 524 enters the frame 505 from the recess 540a on the upper surface side of the third side wall recess 540, and a part of the main body portion 524 is disposed on the first overhanging portion 16 and fixedly bonded thereto. Of course, the main body 524 is also bonded to the contact surface with the other third side wall recesses 540 and the like.

  Further, the right branch 525 branched from the main body 524 extends, for example, from the recess 438a on the upper surface side of the first side wall recess 438 to the outside of the frame 505 as shown in FIGS. The outer surface is bonded through the dent 438b.

  Further, the right branch portion 525 bonded to the outer recess 438b is bent from the first overhanging portion side to the second overhanging portion side, and into the frame 505 from the opening on the opposite side to the upper surface side of the first side wall recess 438. Return.

  The right branching portion 525 is mounted on the second overhanging portion 17 so as to be offset from the second side wall 36 on one side of the first substrate 7 when viewed from the first overhanging portion 16 side, for example, as shown in FIGS. In order to avoid the liquid crystal driving IC 520, the liquid crystal driving IC 520 is disposed in a space vacant on the first side wall 435 side opposite to the one side, and is bonded and fixed to the second overhanging portion 17.

  Further, the right branching portion 525 bonded and fixed to the second overhanging portion 17 further includes, for example, the main body portion 524 from the region where the main body portion 524 is not disposed on the second overhanging portion 17 as shown in FIG. The third side wall recess 540 that is not attached to the third side wall recess 540b extends through the opening 541 on the lower surface side of the third side wall recess 540 and out of the frame 505. Note that the distal end portion is electrically connected to an external circuit (not shown) by, for example, a connector.

  The opening 541 described above is formed as a structure in which the flexible substrate side of the bottom surface (internal bottom surface) of the frame 505 is cut off as shown in FIG. 14, for example. However, the present invention is not limited to this. It may be a notch, a substantially rectangular shape, or the like.

  Further, the recesses on the upper surface side and the outer surface of the first side wall recess 438 and the third side wall recess 540 described above are recessed with substantially the same size as the thickness and width of the right branch portion 525 and the main body portion 524, respectively. However, the present invention is not limited to this, and for example, it may of course be slightly larger than those sizes. Thereby, some errors can be covered, and the manufacturing cost can be reduced.

  As described above, according to this modification, the liquid crystal driving IC 520 is provided to be offset toward one side of the first substrate 7 of the second overhanging portion 17, for example, the second side wall 36 side, and a part of the right branching portion 525 is provided. Since the liquid crystal driving IC 520 is disposed in the second overhanging portion 17 so as to avoid the liquid crystal driving IC 520, the liquid crystal panel 502 is prevented from being thickened by disposing the flexible substrate 503 on the liquid crystal driving IC. It becomes possible.

  (Third embodiment / electronic device)

  Next, an electronic apparatus according to the third embodiment of the present invention including the liquid crystal display devices 1, 101, 201, 401, and 501 described above will be described. In addition, about the component which is common in the component of 1st Embodiment, 2nd Embodiment, Modification 1, Modification 2, and Modification 3, about 1st Embodiment, 2nd Embodiment, and Modification The same reference numerals as those of the components of the first modification, the second modification, and the third modification are given, and the description thereof is omitted.

  FIG. 15: is a schematic block diagram which shows the whole structure of the display control system of the electronic device concerning the 3rd Embodiment of this invention.

  The electronic device 300 includes, for example, a liquid crystal panel 2 and a display control circuit 390 as shown in FIG. 15 as a display control system. 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.

  The liquid crystal panel 2 has a drive circuit 361 for driving the display area I.

  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, for example, the liquid crystal display device 1 provided in the electronic apparatus 300 bends the main body portion 24 and the right branch portion 25 of the flexible substrate 3 and extends the first substrate 7 protruding from the polarizing plate 12. Since a part of the right branch portion 25 is disposed and fixed to the first projecting portion 16, the right branch of the flexible substrate is formed in a portion depressed by the polarizing plate from the polarizing plate 12 serving as the display surface of the liquid crystal display device 1. The portion 25 can be arranged, and the thickness of the liquid crystal display device 1 can be reduced by at least the depression.

  In addition, for example, the liquid crystal display device 1 provided in the electronic device 300 includes at least a part of the right branch portion 25 and the main body portion 24 on, for example, the first side wall 35 and the third side wall 37 that are outer surfaces of the frame 5. Since the first side wall concave portion and the third side wall concave portions 38 and 40 are accommodated, it is possible to prevent the main body portion 24 and the right branch portion 25 from protruding from the frame outer surface. Thereby, the liquid crystal display device 1 can be further reduced in size and thickness. Further, the main body 24 and the right branch portion 25 can be easily accommodated in the recess, and the positioning of the main body portion 24 and the right branch portion 25 becomes easier.

  In particular, recent electronic devices are required to be smaller and thinner, and it can be said that the present invention that can be reduced in size and thickness with a simple structure is significant.

  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 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 display devices 1, 101, 201, 401, and 501 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. Further, the above embodiments may be combined without departing from the gist of the present invention.

  For example, all of the above-described electro-optical devices are liquid crystal display devices having a liquid crystal panel, but inorganic or organic electroluminescence devices, plasma display devices, electrophoretic display devices, devices using electron emission elements (Field Emission Display and Various electro-optical devices such as Surface-Conduction Electron-Emitter Display) may be used.

  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 passive matrix type liquid crystal display device has been described in the above-described embodiments and modifications. However, the present invention is not limited to this. For example, a thin film transistor element active matrix type or thin film diode element active matrix type liquid crystal display device may be used. Good. Furthermore, it is not limited to the reflective transflective type, and may be a transmissive type or a reflective type. As a result, also for a wide variety of liquid crystal display devices, the space of the liquid crystal panel can be reduced with a simple structure, and the liquid crystal display device can be further reduced in thickness and size.

  In the above-described embodiment and modification, the case where at least the first sidewall recess and the third sidewall recess of the first sidewall recess, the second sidewall recess, and the third sidewall recess are provided in the frame has been described. In the case where not all of the side wall recesses are provided, or in the case where only one of the side wall recesses, for example, the first side wall recess 38 is not provided, it is also possible to provide all as in the first modification. . As a result, it is possible to cope with a wider variety of liquid crystal display devices without waste and to reduce the manufacturing cost.

  Furthermore, in the first embodiment, the second embodiment, and the third modification described above, the right branch portion has been described as the branch portion of the flexible substrate. However, the present invention is not limited to this, for example, from the opposite side of the main body portion of the flexible substrate. The protruding left branch may be a branch. As a result, also for a wide variety of liquid crystal display devices, it is possible to reduce the space of the liquid crystal panel with a simple structure, and it is possible to further reduce the thickness and size. Further, in this case, the liquid crystal driving IC of Modification 3 is shifted to the first side wall 435 side, and the left side branching portion, which is a branching portion, is arranged in a space vacant on the second side wall 36 side of the second overhanging portion 17. In this way, the liquid crystal display device can be thinned.

1 is a schematic perspective view of a liquid crystal display device according to a first embodiment. FIG. 2 is a cross-sectional view taken along line AA in FIG. 1 (the liquid crystal driving IC and the light source are not cut). 1 is a schematic exploded perspective view of a liquid crystal display device according to a first embodiment. It is explanatory drawing of the state which accommodated the illuminating device etc. in the flame | frame concerning 1st Embodiment. It is explanatory drawing of the state which bent the main-body part which concerns on 1st Embodiment. 10 is a schematic perspective view of a liquid crystal display device according to Modification 1. FIG. 10 is a schematic perspective view of a frame according to Modification 1. FIG. 10 is a schematic perspective view of a liquid crystal display device according to Modification 2. FIG. It is a schematic perspective view of the liquid crystal display device which concerns on 2nd Embodiment. FIG. 10 is a cross-sectional view taken along the line GG of FIG. 9 (the liquid crystal driving IC and the light source are not cut). It is a schematic perspective view of the frame which concerns on 2nd Embodiment. 10 is a schematic perspective view of a liquid crystal display device according to Modification 3. FIG. It is the HH sectional view taken on the line of FIG. 12 which concerns on the modification 3 (The light source is not cut | disconnected). 10 is a schematic perspective view of a frame according to Modification 3. FIG. It is a schematic block diagram of the display control system of the electronic device which concerns on 3rd Embodiment.

Explanation of symbols

  1, 101, 201, 401, 501 liquid crystal display device, 2,502 liquid crystal panel, 3, 103, 203, 403, 503 flexible substrate, 4,404 lighting device, 5,105,405,505 frame, 6 sealing material, 7 First substrate, 8 Second substrate, 9 Liquid crystal, 10 Segment electrode, 11, 14 Overcoat layer, 12, 15 Polarizing plate, 13 Common electrode, 16 First overhang, 17 Second overhang, 18 For segment electrode Wiring, 19 common electrode wiring, 20,520 liquid crystal driving IC, 21 external terminal, 22, 122, 222, 422, 522 base substrate, 23, 123, 223, 423, 523 wiring pattern, 24, 124, 224, 424, 524 body, 25, 125, 225, 425, 52 5 Right branch part, 26,426 Light source, 27 Light guide plate, 28, 29 Prism sheet, 30 Diffusion sheet, 31 Reflective sheet, 32 Light shielding sheet, 33, 433, 533 Recessed part, 34, 434, 534 Inner bottom surface, 35, 435 First side wall 36,136 Second side wall 37,437,537 Third side wall 38,438 First side wall recess 40,440,540 Third side wall recess 41,441,541 Opening 126 226, left branch, 139 second side wall recess, 300 electronic device, 361 drive circuit, 390 display control circuit, B display area, C non-display area

Claims (10)

A first substrate holding an electro-optic material; an optical member disposed on the opposite side of the first substrate to the electro-optic material; and a flexible circuit board provided with wiring connected to the first substrate. In an electro-optical device,
The first substrate has a first projecting portion projecting from the optical member,
The flexible circuit board is connected on the side opposite to the first projecting portion side of the first substrate, and has a main body portion connected to the first substrate and a branch portion protruding from the main body portion,
The main body portion and the branch portion are bent toward the electro-optic material side,
An electro-optical device, wherein a part of the bent branch part is further bent toward the optical member side and disposed at the first overhanging part. A second substrate facing the first substrate and sandwiching the electro-optic material with the first substrate; the first substrate having a second projecting portion projecting from the second substrate;
The electro-optical device according to claim 1, wherein the flexible circuit board is connected to the second projecting portion. A light guide plate for guiding light to the second substrate;
A light source is mounted on the main body,
The electro-optical device according to claim 2, wherein the light source is disposed so as to face an end surface of the light guide plate by bending the flexible circuit board. A frame for holding at least the first substrate and the second substrate;
The light guide plate is disposed between the second substrate and the frame;
The electro-optical device according to claim 3 , wherein an opening for inserting the light source is provided at a bottom of the frame. A frame for holding at least the first substrate;
The body portion and the branch portion of the flexible circuit board, an electrical according to claims 1 to any one of claims 4, characterized in that bent along the portion of the outer surface of at least the frame Optical device. The outer surface of the frame, according to claim 4 or claim 5, characterized in that at least part fits such recess portion along the outer surface of at least one of the body portion and the branch portion Electro-optical device. The electro-optical device according to any one of claims 1 to 6 , wherein the branch portion protrudes from both sides through the main body portion as a first branch portion and a second branch portion, respectively. The branch portions protrude from the both sides through the main body portion as first and second branch portions, respectively.
The frame has a substantially rectangular shape,
The first branch portion is bent along the outer surface on one side of the frame,
It said second branch portion, according to any one of claims 6 claim 4, characterized in that bent along the other side of the outer surface facing the one side end of the frame Electro-optical device. The portion of the first branch portion, an electro-optical device according to claim 7 or claim 8, characterized in that it is bonded to the second branch so as to cover at least a portion of the second branch . An electronic apparatus comprising the electro-optical device according to any one of claims 1 to 9.

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