JP2010117642A - Electrooptical apparatus and electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To satisfactorily prevent spoiling of display performance and reduction in utilizing efficiency of a backlight unit by light reflectance of an inner surface of a mounting case in an electrooptical apparatus including an electrooptical panel, such as, a liquid crystal panel and backlight unit for irradiating the electrooptical panel with light and an electronic device using the same. <P>SOLUTION: In the electrooptical apparatus in which the electrooptical panel 2 and the backlight unit 3 disposed opposite to the electrooptical panel are housed in the mounting case, at least the surface on the electrooptical panel side of the mounting case has light reflectance lower than that of the surface on the backlight unit side. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electro-optical device such as a liquid crystal device and an electronic apparatus. More specifically, the present invention relates to an electro-optical device including an electro-optical panel such as a liquid crystal panel and a backlight unit for irradiating the electro-optical panel with light, and an electronic apparatus using the same.

  Conventionally, for example, an electro-optical device such as a liquid crystal device has been used as a display device in a computer, a mobile phone, and other various electronic devices. In particular, the liquid crystal device is widely used as a display device for various electronic devices because it is light and thin and consumes less power. It's being used.

  An electro-optical device such as a liquid crystal device as described above generally has a light source for illumination on the back side of the electro-optical panel such as a liquid crystal panel, and a light guide plate or a light diffusion plate for guiding light from the light source to the panel. A backlight unit configured as one unit is arranged, and the backlight unit irradiates light from the back side to the electro-optical panel to display a desired image or the like in a pixel area on the front side of the panel It is.

  An electro-optical device including such a backlight unit is generally used in a state in which the electro-optical panel and the backlight unit are integrated by some means. In Patent Document 1, a liquid crystal panel and a backlight unit disposed opposite to the panel are accommodated in a rectangular frame (frame case), and the backlight unit of the liquid crystal panel accommodated in the frame is disclosed. The structure which provided light-shielding members, such as the shield case which covers at least one part of the surface on the opposite side and the side surface of the said frame, is disclosed.

Japanese Patent Laid-Open No. 2005-77557

  However, when the electro-optical panel and the backlight unit are housed in a common frame as in Patent Document 1, the light reflectance on the inner surface of the frame is determined by the material and color of the frame, and the entire inner surface is usually used. It is almost constant. For this reason, when the reflectance of light on the inner surface of the frame is high, for example, light leaking to the side of the panel may be reflected by the inner surface of the frame and emitted to the surface side of the panel to impair display performance. Conversely, if the reflectance of light on the inner surface of the frame is low, for example, a part of the light emitted from the backlight unit is absorbed by the inner surface of the frame and the utilization efficiency of the light emitted from the backlight unit is reduced. There is.

  Further, Patent Document 1 discloses a configuration in which a light-shielding mount case that also serves as a positioning member for the panel is provided along the inner surface of the frame between the electro-optic panel housed in the frame and the frame. If the light shielding mount case as described above is provided separately from the light shielding member such as the frame or the shield case, there are problems such as an increase in the number of parts and the number of assembly steps and an increase in manufacturing cost.

  The present invention has been proposed in view of the above problems, and can satisfactorily prevent display performance from being deteriorated due to light reflection on the inner surface of the mounting case such as the frame or the like, and the use efficiency of the backlight unit from being lowered. An object of the present invention is to provide an electro-optical device that is simple in structure and can be manufactured easily and inexpensively and an electronic apparatus using the same.

  In order to achieve the above object, an electro-optical device and an electronic apparatus using the same according to the present invention are configured as follows. In other words, the electro-optical device according to the present invention is an electro-optical device in which an electro-optical panel and a backlight unit disposed so as to face the electro-optical panel are accommodated in a mounting case. The surface on the electro-optical panel side has a light reflectance lower than that on the surface on the backlight unit side.

  As described above, at least the surface on the electro-optical panel side of the mounting case has a light reflectance lower than that on the surface on the backlight unit side. Therefore, the display performance is impaired due to the light reflectance on the inner surface of the frame. The use efficiency of the unit can be satisfactorily prevented, and the structure and structure are simple and can be manufactured easily and inexpensively.

  As described above, at least the surface of the mounting case on the electro-optical panel side is appropriately provided with a light reflectivity lower than that of the surface on the backlight unit side. A resin material having a low light reflectance, for example, a resin material having a low light reflectance such as black at the surface, and a resin material having a high light reflectance on the backlight unit side, for example, a light reflecting material having at least a white surface. It is made of a resin material with high color. Alternatively, the mounting case is formed of a resin material having a low light reflectivity, for example, a resin material having a low light reflectivity such as black, and a coating layer having a high light reflectivity, for example, white is provided on the surface of the mounting case on the backlight unit side. A coating layer having a high light reflectance such as a color is formed, or a light reflecting surface such as a mirror surface or a metallic gloss surface is provided. Alternatively, the mounting case is formed of a resin material having a high light reflectivity, for example, a resin material having a high light reflectivity such as white, or a mirror surface or a metallic gloss surface on the surface of the mounting case at least on the backlight unit side. The surface of the mounting case on the side of the electro-optic panel may be provided with a coating layer having a low light reflectance, for example, a coating layer having a low light reflectance such as black.

  In any of the above cases, it is possible to satisfactorily prevent display performance from being deteriorated due to the light reflectance of the inner surface of the frame as well as to reduce the use efficiency of the backlight unit, and the structure and structure are simple and easy. It can be manufactured at low cost.

  The mounting case includes a frame that houses and holds the electro-optic panel from one surface and the backlight unit from the other surface, and a light shielding member that contacts the frame and engages with the backlight. Further, at least the surface on the electro-optical panel side of the frame may have a light reflectance lower than that of the surface on the backlight unit side.

  Further, the frame of the mounting case has a side wall portion and a support portion provided inside the side wall portion, and at least the surface of the side wall portion and the support portion on the electro-optical panel side is on the backlight unit side. It is good also as a structure whose light reflectance is lower than a surface.

  When configured as described above, the mounting case having the frame and the light shielding member can accommodate and hold the electro-optical panel and the backlight unit, and display performance can be improved by the reflectance of the light on the inner surface of the frame as described above. It is possible to satisfactorily prevent damage or a decrease in utilization efficiency of the backlight unit.

  An electronic apparatus according to the present invention includes the electro-optical device as described above. By having the electro-optical device as described above, it is possible to obtain an electronic device that is excellent in display performance and the like and has high utilization efficiency of light from the backlight unit, with a simple structure, easily, and inexpensively.

  Hereinafter, an electro-optical device according to the present invention will be specifically described based on an embodiment shown in the drawings, taking the case where the present invention is applied to a liquid crystal device as an example. FIG. 1A is a plan view showing an embodiment of a liquid crystal device as an electro-optical device according to the present invention, FIG. 1B is a side view thereof, FIG. 2, FIG. 3 and FIG. It is A, BB, and CC sectional drawing.

  A liquid crystal device 1 as an electro-optical device according to this embodiment includes a liquid crystal panel 2 as an electro-optical panel as shown in FIGS. 1 to 4, and a backlight unit 3 disposed on the back side of the liquid crystal panel 2. Is mounted in a mounting case. In this embodiment, the mounting case includes a frame 4 for fitting and holding the liquid crystal panel 2 and the backlight unit 3 facing each other, and the frame. The light shielding member 5 is a cover disposed so as to cover the outer surface side (the side opposite to the backlight unit 3) of the liquid crystal panel 2 fitted and held by 4.

  In the present embodiment, the frame 4 is made of a synthetic resin such as polycarbonate resin, as shown in FIGS. 1 to 4, and has a generally flat rectangular parallelepiped shape. Is formed in a substantially H-shaped cross-section in which a partition plate-like support portion 44 having a light-transmitting opening 44 a in the center is integrally provided, and one concave portion of the H-shaped frame 4. The liquid crystal panel 2 is placed in the recess 40a (in the figure, the recess above the support 44), and the backlight unit 3 is placed in the other recess (in the figure, the recess below the support 44) 40b. Each is fitted and held and accommodated.

  The liquid crystal panel 2 and the backlight unit 3 may be fixed to the frame 4 with an adhesive or a double-sided adhesive tape as necessary. In the present embodiment, the liquid crystal panel 2 is fixed to the frame 4 with an adhesive. Although not shown in the figure. The backlight unit 3 supports the frame 4 via a substantially rectangular frame-shaped double-sided adhesive tape 31 that also serves as a light-shielding film for preventing the liquid crystal panel 2 from being irradiated with light outside a predetermined region. This is a structure that is fixed to one surface of the portion 44 (the lower surface in the figure).

  In the present embodiment, the light shielding member 5 includes a flat portion 51 that covers one surface (upper surface in the case of FIG. 1) of the liquid crystal panel 2 accommodated in the frame 4 by a metal plate such as stainless steel, and the width of the flat portion 51. In the direction (left and right direction in FIG. 3 and FIG. 4), it is formed in a U-shaped cross section (channel type) composed of opposing surface parts 52 and 52 bent at substantially right angles to the flat part 51 at both ends. 51 is configured to cover the outer surface side of the liquid crystal panel 2 and to cover part of the outer surfaces of the side wall portions 43 and 43 of the frame 4 facing each other with the facing surface portions 52 and 52, respectively. Each of the opposing surface portions 52 and 52 is disposed so as to be in contact with the outer surface of the side wall portions 43 and 43 located on the inner surface side thereof, and corresponds to the pixel region (display region) of the liquid crystal panel 2 in the planar portion 51. At the position, a display window 5a formed by opening the portion is provided.

  In the embodiment, as shown in FIGS. 2 and 4, the liquid crystal panel 2 and the backlight unit 3 are fitted and held on the frame 4 and the outer surface side of the liquid crystal panel 2 is covered with the light shielding member 5. In addition, the light shielding member 5 and the backlight unit 3 are connected to each other so that the four members 2 to 5 are integrated. As a connecting means for connecting the light shielding member 5 and the backlight unit 3, FIG. In this case, a locking hole 5c is formed in each of the opposing surface portions 52 and 52, and protrusions 3c that engage with the locking hole 5c are integrated with the left and right ends of the backlight unit 3 in FIG. Provided.

  Further, as shown in FIG. 1 and FIG. 3, a protruding portion 43 a that protrudes outward from the facing surface portion 52 is provided integrally with each of the side wall portions 43 on the outer surface side of each of the side wall portions 43. A cutout recess 52a is formed in each of the facing surface portions 52 and 52 so as to avoid interference with the portion 43a. Further, as shown in FIG. 1 (b), downward facing tongue portions 52b and 52b are integrally provided on both sides of the notch recess 52a of each of the opposed surface portions 52 and 52, and the tongue portions 52b are provided with the above-described tongue portions 52b. A locking hole 5c is provided. In the present embodiment, two protrusions 3c with which the locking holes 5c are engaged are provided at the left and right ends of the backlight unit 3 in correspondence with the locking holes 5c. . The arrangement positions and the number of the protrusions 3c and the locking holes 5c can be changed as appropriate.

  In FIG. 1 and FIG. 4, 4c is a guide projection provided integrally with the outer surface of the side wall 43, 43 of the frame 4 in the vicinity of each projection 3c, and an inclined surface is provided on the upper half of each guide projection 4c. 4c1 is provided, and when the locking holes 5c are engaged with the projections 3c of the backlight unit 3, the guides are pushed while the tongue portions 52b below the locking holes 5c are pushed outward. The locking hole 5c is engaged with the protrusion 3c by getting over the protrusion 4c and the protrusion 3c.

  Further, the side wall portions 43 and 43 facing each other in the direction intersecting the side wall portions 43 and 43 facing each other of the frame 4, that is, the side wall portions 41 and 42 facing in the left-right direction in FIGS. Flange-like protrusions 41a and 42a are formed on the outer periphery of the opposite edge, and the light shielding member 5 is disposed between the protrusions 41a and 42a. Each of the protrusions 41a and 42a protrudes outward (upward in the drawing) from the light shielding member 5 and outward from the backlight unit 3 (see FIG. 1B and FIG. 2). And projecting downward).

  Although the configuration of the liquid crystal panel 2 is appropriate, the present embodiment uses an active matrix type liquid crystal panel using a thin film transistor as a switching element for pixels, and the specific configuration will be described with reference to FIG. . FIG. 5A is a plan view of the liquid crystal panel 2, and FIG. 5B is a cross-sectional view taken along line bb in FIG.

  The liquid crystal panel 2 of the present embodiment uses a thin film transistor as a switching element for a pixel as described above, and the thin film transistor is formed on an element substrate (TFT array substrate) 10 made of quartz, glass, silicon, or the like shown in FIG. The counter substrate 20 made of glass, quartz, or the like is provided to face the element substrate 10. The element substrate 10 and the counter substrate 20 are bonded and fixed to each other by a sealing material 24 provided around the pixel region (image display region) 2A, and the element substrate 10 and the counter substrate 20 inside the sealing material 24 are fixed. A liquid crystal layer 25 in which liquid crystal is injected is provided therebetween. In FIG. 5, 24a is a liquid crystal injection port formed by removing a part of the sealing material 24, and 24b is a sealing material for closing the liquid crystal injection port 24a.

  A data line driving circuit 14 that drives an image signal to a data line (not shown) at a predetermined timing in a region outside the sealant 24, that is, a peripheral region outside the pixel region 2A. The external circuit connection terminal 15 is provided along one side of the element substrate 10. A scanning line driving circuit 16 that drives the scanning line by supplying a scanning signal to a scanning line (not shown) at a predetermined timing is parallel to two sides adjacent to the one side and inside the sealant 24. It is provided on the element substrate 10 at a position facing the light shielding film 26 provided. Further, on the remaining one side of the element substrate 10, a plurality of wirings 17 are provided for connecting the side opposite to the external circuit connection terminal 15 side of the scanning line driving circuit 16 provided in parallel with the two sides.

  Vertical conduction terminals 19 are formed on the element substrate 10 at the four corners of the sealing material 24, and the lower end contacts the vertical conduction terminals 19 between the element substrate 10 and the counter substrate 20, and the upper end is the counter electrode. A vertical conductive member 18 is provided in contact with 20, and the vertical conductive member 18 provides electrical continuity between the element substrate 10 and the counter substrate 20. Polarizers 11 and 21 are arranged and fixed on the outer surface side (the side opposite to the liquid crystal layer 25) of the element substrate 10 and the counter substrate 20, respectively.

  A pixel electrode 12 or the like constituting a pixel is provided on the inner surface side (liquid crystal layer 25 side) of the element substrate 10, and an alignment film 13 is provided on the inner side. A counter electrode 22 is provided on the counter substrate 20 over substantially the entire surface, and an alignment film 23 is also provided on the inner surface thereof. Each of the alignment films 13 and 23 is made of, for example, a transparent organic film such as a polyimide film, and the liquid crystal molecules in the liquid crystal layer 25 are supplied to the liquid crystal layer 25 by performing a rubbing process or the like on the surface thereof. This is a configuration in which it is oriented in a predetermined direction according to the voltage to be applied.

  When assembling the liquid crystal panel 2 configured as described above in the mounting case including the frame 4 and the light shielding member 5 as in the embodiment of FIGS. First, the liquid crystal panel 2 configured as shown in FIG. 5 is turned upside down as shown in FIG. 2, and as shown in FIG. 6A, one of the frames 4 having an approximately H-shaped cross section (upper side in the case of FIG. 5). The backlight unit 3 is inserted and held in the recess 40b on the other side (lower side in the figure) of the frame 4 while being inserted and held in the recess 40a.

  Next, as shown in FIG. 6B, the light shielding member 5 is covered from the outside (the upper side in the figure) of the liquid crystal panel 2 fitted and held on the frame 4, and the opposing surface portions 52 and 52 of the light shielding member 5 are framed. 4 is moved downward along the outer surface of the side wall portions 43. Then, the tongue-like portion 52b below the locking hole 5c provided in each of the opposed surface portions 52 and 52 is pushed and opened outward along the inclined surface 4c1 of the guide projection 4c while the guide projection 4c and the projection By getting over 3c, the protrusion 3c is engaged with each of the locking holes 5c. Accordingly, the light shielding member 5 is connected to the backlight unit 3, and the four members 2 are held in a state where the liquid crystal panel 2 and the frame 4 are sandwiched between the light shielding member 5 and the backlight unit 3. ˜5 are integrally connected and held.

  The orientation of the liquid crystal panel 2 when fitted to the frame 4 and the fitting structure with respect to the frame 4 can be appropriately changed. The backlight unit 3 used in the embodiment of FIGS. 1 to 3 is configured to irradiate light from a light source such as an LED to the back side of the liquid crystal panel 2 through a light guide or a light diffusion plate. These constituent members are covered with a casing or the like to form a unit. The constituent members, the internal structure, and the like of the backlight unit 3 can be changed as appropriate. In the illustrated example, the constituent members, the internal structure, and the like are omitted, and only the overall appearance is shown.

  2 and 3, reference numerals 29 and 30 respectively denote flexible printed wiring boards (also serving as conductive connection members for electrically connecting the liquid crystal panel 2 and the backlight unit 3 to an external power source and signal input source, respectively) FPC), the wiring boards 29 and 30 are formed on the front wall 41 of the frame 4 as shown in FIG. 2 in a state where the liquid crystal panel 2 and the backlight unit 3 are fitted and held on the frame 4. It is comprised so that it may be located in the notch recessed part 41b and 41c which were made.

  In the present invention, the electro-optical panel such as the liquid crystal panel 2 as described above and the backlight unit 3 disposed on the back surface of the electro-optical panel are held in a mounting case including the frame 4 and the light shielding member 5. In such an electro-optical device such as a liquid crystal device, at least the surface on the electro-optical panel side of the mounting case is configured so that the reflectance of light is lower than the surface on the backlight unit side. A typical configuration example will be described.

  FIG. 7 shows an example of an electro-optical device in which the surface of the mounting case on the electro-optical panel side has a lower light reflectance than the surface on the backlight unit side, and this example is configured in the same manner as described above. A portion 4a on the liquid crystal panel 2 side (upper side in the figure) of the frame 4 constituting the mounting case in the liquid crystal device 1 as the electro-optical device is a resin material having a low light reflectance, for example, a resin having a low light reflectance such as black. The portion 4b on the backlight unit 3 side (the lower side in the figure) is formed of a resin material having a high light reflectance, for example, a resin material having a high light reflectance such as white. In particular, in the case of the figure, the thickness direction of the support portion 44 (vertical direction in FIG. 7) from the upper corner of the end portion on the opening portion 44a side of the support portion 44 having the above-described light-transmitting opening portion 44a. The portion 4a closer to the liquid crystal panel 2 than the boundary surface B1 passing through the substantially middle portion is formed of a black resin material, and the portion 4b closer to the backlight unit 3 than the boundary surface B1 is formed of a white resin material. is there. Although FIG. 7 shows only a part of the frame-like frame 4, it is formed in the same manner as described above over the entire circumferential length of the frame-like frame 4. Although only a part of the frame 4 is shown in the configuration examples of FIGS. 8 and 9 to be described later, they are similarly configured over the entire circumferential length of the frame 4.

  When configured as described above, the light reflectance on the surface of the portion 4 a on the liquid crystal panel 2 side of the frame 4 is lower than the light reflectance on the surface of the portion 4 b on the backlight unit 3 side, and in the vicinity of the liquid crystal panel 2. It is possible to prevent the display performance from being impaired by the reflection of the light, and the light utilization efficiency from being lowered by the light absorption in the vicinity of the backlight unit. In particular, when the portion 4a on the liquid crystal panel 2 side is formed of a resin material having a low light reflectance such as black as in the above embodiment, the reflection of light near the liquid crystal panel is reduced and the display performance is deteriorated due to stray light or the like. If the portion 4b on the backlight unit 3 side is made of a resin material having a high light reflectance such as white, the reflectance in the vicinity of the backlight unit is increased and light is absorbed at the same time. The amount is reduced, and the light from the backlight unit can be used effectively. As a result, an electro-optical device that is bright and excellent in display performance can be manufactured with a simple structure, easily and inexpensively.

  FIG. 8 shows another example of a liquid crystal device as an electro-optical device in which the reflectance of the mounting case is varied similarly to the above. In this example, the frame 4 in the liquid crystal device 1 configured in the same manner as described above is reflected light. A resin material having a low light reflectance, for example, a resin material having a low light reflectance such as black, and a coating layer having a high light reflectance, such as white, is formed on the surface of the portion 4b of the frame 4 on the backlight unit 3 side. A coating layer of a color having a high light reflectance or a light reflecting surface such as a mirror surface or a metallic gloss surface is provided. In particular, in the case of the figure, the entire front frame 4 is formed of a resin material such as black, and a white coating layer 61 is formed on the surface of the portion 4b of the frame 4 on the backlight unit 3 side. Instead of the covering layer 61, a light reflecting surface such as a mirror surface or a metallic gloss surface may be provided. In the illustrated example, the coating layer 61 is applied only to a region from the corner portion of the surface of the support portion 44 to the double-sided adhesive tape 31, but the portion of the double-sided adhesive tape 31 or the side surface of the backlight unit 3 is provided. A coating layer 61 or a light reflecting surface similar to the above may also be provided on the lower inner surface of the frame 4 facing the. Even when configured as described above, the same or better operational effects as those of FIG. 7 can be obtained. In particular, when a light reflecting surface such as a mirror surface or a metallic gloss surface is provided, a higher light reflectance may be obtained than when a white coating layer 61 is provided.

  FIG. 9 shows still another example of a liquid crystal device as an electro-optical device in which the reflectance of the mounting case is changed similarly to the above. In this example, the frame 4 in the liquid crystal device 1 configured in the same manner as above is used as a light beam. A resin material having a high reflectance, for example, a resin material having a high light reflectance such as white, or a metal having a light reflecting surface on at least the surface of the frame 4 on the backlight unit 3 side, A coating layer with a low light reflectance, for example, a coating layer 62 with a color with a low light reflectance such as black is formed on the surface of the frame 4 on the liquid crystal panel 2 side. In particular, in the case of the figure, the entire frame 4 is formed of a white resin material, and from the surface on the liquid crystal panel 2 side of the frame 4, in the illustrated example, from the upper corner of the end portion on the opening 44 a side of the support portion 44. Also, a coating layer 62 made of black paint or the like is provided on the inner surface of the liquid crystal panel 2 side (upper side in the figure). Instead of forming the entire frame 4 with a white resin material, at least the frame 4 It is good also as a structure which has light reflection surfaces, such as a mirror surface and a metallic luster surface, in the surface at the side of the backlight unit 3. FIG. Even when configured as described above, the same effects as in FIGS. 7 and 8 can be obtained.

  Note that each of the above configuration examples is an example, and at least the surface of the mounting case on the electro-optical panel side may have a lower light reflectance than the surface on the backlight unit side, and preferably the liquid crystal of the mounting case. Surface treatment on the panel 2 side is a color with a low light reflectance such as black, and the surface on the backlight unit 3 side is a color with a high light reflectance such as white, or a surface treatment with a high light reflectance such as a mirror surface or a metallic gloss surface. A coating layer may be applied. Further, when the frame 4 and the light shielding member 5 are used as the mounting case as in the above embodiment, the light shielding member 5 may be configured in the same manner as described above. In particular, the liquid crystal panel 2 is configured as in the above embodiment. In the case of the covering structure, at least the inner surface side is a color with low light reflectance such as black, and in the case of covering the backlight unit 3 side, at least the inner surface side is light reflectance such as white. A surface treatment or coating layer having a high light reflectance such as a high color or mirror surface or a metallic gloss surface may be applied. Furthermore, the present invention can be applied not only to the mounting case including the frame 4 and the light shielding member 5 as described above but also to various other mounting cases.

  In the above embodiment, the electro-optical device is applied to a liquid crystal device, and an active matrix type liquid crystal panel is used as an electro-optical panel. However, a passive matrix type liquid crystal panel may be used. Further, not only the liquid crystal panel but also other various electro-optical panels can be used to obtain an electro-optical device having the same configuration as the liquid crystal device.

  Furthermore, the electro-optical device configured as described above can be used as a display unit, a display device, or the like of various electric apparatuses. FIG. 10 shows an example thereof, in which the liquid crystal device 1 is used as an electroview device (EVF) in a digital camera 70 as an electronic apparatus 7 as an electro-optical device configured as described above. In the figure, 71 is an image display monitor, 72 is a shutter button, 73 is a dial switch, and 74 is a power button.

  The electro-optical device according to the present invention can be applied not only to the digital camera as described above but also to various other electric devices. For example, portable information devices called portable telephones and PDAs (Personal Digital Assistants), portable personal devices, and the like. Computer, personal computer, workstation, digital still camera, in-vehicle monitor, digital video camera, LCD TV, viewfinder type, monitor direct view type video tape recorder, car navigation device, pager, electronic notebook, calculator, word processor, workstation It can also be widely used for electronic devices such as videophones and POS terminals.

(A) is a top view which shows one Embodiment of the liquid crystal device as an electro-optical device by this invention, (b) is the side view. AA sectional drawing in FIG. BB sectional drawing in FIG. CC sectional drawing in FIG. (A) is a top view which shows an example of the specific structure of the liquid crystal panel as an electro-optical panel, (b) is bb sectional drawing in (a). (A) And (b) is explanatory drawing which shows an example of the process which accommodates the liquid crystal panel as an electro-optical panel, and a backlight unit in a mounting case. FIG. 4 is a partial longitudinal sectional view showing an example of a specific configuration of a mounting case in the electro-optical device according to the invention. FIG. 10 is a partial longitudinal sectional view illustrating another example of a specific configuration of a mounting case in the electro-optical device according to the invention. FIG. 10 is a partial longitudinal sectional view showing still another example of the specific configuration of the mounting case in the electro-optical device according to the invention. 1 is a rear view of a digital camera as an electronic apparatus using a liquid crystal device as an electro-optical device according to the present invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Liquid crystal device (electro-optical device), 2 ... Liquid crystal panel (electro-optical panel), 10 ... Element substrate, 20 ... Counter substrate, 11, 21 ... Polarizing plate, 12 ... Pixel electrode, 22 ... Counter electrode, 13, 23 ... Alignment film, 24 ... Sealing material, 25 ... Liquid crystal layer, 3 ... Backlight unit, 3c ... Projection, 31 ... Double-sided adhesive tape, 4 ... Frame, 4a ... Panel side part, 4b ... Backlight side part, 4c ... Projection 40a, 40b ... concave portion, 41 ... side wall portion (front wall portion), 42 ... side wall portion (rear wall portion), 41a, 42a ... projecting portion, 43 ... side wall portion, 43a ... overhang portion, 44 ... support portion, 44a. DESCRIPTION OF SYMBOLS Opening part, 5 ... Shading member, 5a ... Display window, 5c ... Locking hole, 51 ... Planar part, 52 ... Opposite surface part, 61, 62 ... Covering layer, 7 ... Electronic device, 70 ... Digital camera.

Claims (7)

An electro-optical device in which an electro-optical panel and a backlight unit disposed to face the electro-optical panel are accommodated in a mounting case,
The electro-optical device according to claim 1, wherein at least the surface on the electro-optical panel side of the mounting case has a light reflectance lower than that on the surface on the backlight unit side.   2. The electricity according to claim 1, wherein the electro-optical panel side of the mounting case is formed of a resin material having low light reflectance, and the backlight unit side is formed of a resin material having high light reflectance. Optical device.   The mounting case is formed of a resin material having a low light reflectance, and a coating layer or a light reflecting surface having a high light reflectance is provided on a surface of the mounting case on the backlight unit side. The electro-optical device described.   The mounting case is formed of a resin material having a high light reflectance, or a light reflecting surface is formed on at least the surface of the mounting case on the backlight unit side, and the light reflectance is formed on the surface of the mounting case on the electro-optical panel side. The electro-optical device according to claim 1, further comprising a low-coating layer.   The mounting case includes a frame that houses and holds the electro-optic panel from one side and a backlight unit from the other side, and a light-shielding member that contacts the frame and engages the backlight, and at least the frame The electro-optical device according to claim 1, wherein the surface on the electro-optical panel side has a light reflectance lower than that on the surface on the backlight unit side.   The frame includes a side wall portion and a support portion provided inward of the side wall portion, and at least the surface of the side wall portion and the support portion on the electro-optical panel side is more than the surface on the backlight unit side. 6. The electro-optical device according to claim 5, wherein the light reflectance is low.   An electronic apparatus comprising the electro-optical device according to claim 1.

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