JP2007199340A - Electrooptical device and electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrooptical device, in such a structure that a light shield film is formed on a substrate where a data line is formed, which can increase the width of the light shield film although the data line is present. <P>SOLUTION: The electrooptical device has a first resin film 22 provided between a first light-transmissive substrate 7a and a liquid crystal layer 12, a second resin film 23 provided between the first resin 22 and liquid crystal layer 12, the data line 19 provided between the substrate 7a and first resin film 22, and the light shield film 28 provided between the first resin film 22 and second resin film 23. This electrooptical device includes the data line 19 and light shield film 28 on different planes, so the width of the light shield film 28 can be made wide up to a region overlapping with the data line 19 in a plane. Transmitted light transmitted through the substrate 7a can, therefore, be prevented from leaking from between light reflective films 24 into a reflection display region R. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electro-optical device such as a liquid crystal display device. The present invention also relates to an electronic apparatus configured using the electro-optical device.

  Currently, in various electronic devices such as mobile phones and portable information terminals, electro-optical devices are used as display units for visually displaying various information related to the electronic devices. As this electro-optical device, for example, a liquid crystal display device that displays images such as letters, numbers, and figures by modulating light with a liquid crystal that is an electro-optical material is often used. In general, a liquid crystal display device has a structure in which a space surrounded by a sealing material is formed between a pair of substrates each having an electrode, and liquid crystal is sealed in the space. When these electrodes are viewed in a planar manner, the regions where the electrodes overlap are arranged in a matrix in the row and column directions, and each of these regions constitutes a subpixel. Then, display is performed by controlling the voltage applied to the liquid crystal existing in each sub-pixel for each pixel to control the alignment of the liquid crystal.

  As this liquid crystal display device, for example, a conductive pattern such as a switching element such as a TFD (Thin-Film-Diode) element or a signal line is formed on a translucent glass substrate, and a resin film is formed thereon, A structure having a light reflecting film formed thereon is known. As a liquid crystal display device having such a structure, for example, there is a transflective liquid crystal display device. In a transflective liquid crystal display device, a reflective display region that performs display using reflected light reflected by a light reflecting film and a transmitted light within a sub-pixel that is the minimum unit of display when display is performed. And a transmissive display area for performing display.

  As such an electro-optical device, a device in which a light-shielding film is provided in a region between adjacent sub-pixels is known (for example, see Patent Document 1 or Patent Document 2).

Japanese Patent Laying-Open No. 2005-241859 (page 13, FIG. 5) Japanese Patent Laid-Open No. 11-212118 (page 7, FIG. 1)

  In the electro-optical device, the light shielding film is provided in a region between the light reflecting films adjacent to each other so that the transmitted light does not leak into the reflective display region where display is performed using the light reflected by the light reflecting film. Has the function of shielding light. The light reflecting film is often formed in a predetermined shape by patterning a light reflecting material by etching or the like. Further, the light shielding film is often formed by using the same metal material as the conductive pattern such as electrodes and signal lines and simultaneously patterning the conductive pattern. In this case, the conductive pattern and the light shielding film are formed on the same plane.

  The light shielding film is generally formed to have a width wider than the width of the region between the light reflecting films adjacent to each other. This is in consideration of a case where the positions of the light shielding film and the light reflecting film are shifted from a predetermined position due to a manufacturing error or the like when patterning the light reflecting film.

  By the way, in the electro-optical device disclosed in Patent Document 1, the light shielding film is provided directly on the surface of the substrate. In the electro-optical device having such a configuration, when the light shielding film is formed using the same metal material as the conductive pattern, the conductive pattern and the light shielding film may be electrically short-circuited when the width of the light shielding film is wide. there were. Therefore, it is difficult to increase the width of the light shielding film. Considering this point, if the width of the light shielding film is reduced, if the relative position between the light shielding film and the light reflecting film is shifted, transmitted light leaks from the edge of the light shielding film into the reflective display area. As a result, the display contrast of the electro-optical device may be reduced.

  In the electro-optical device disclosed in Patent Document 2, a light-shielding film is provided on a resin film. This light-shielding film is mainly intended for shielding liquid crystal alignment defects and switching elements against external light. Therefore, no consideration is given to the shielding of transmitted light.

  The present invention has been made in view of the above problems, and in an electro-optical device having a configuration in which a light-shielding film is formed on a substrate on which a conductive film such as a conductive pattern is formed. Regardless, the object is to increase the width of the light shielding film.

  A first electro-optical device according to the present invention includes a substrate that supports an electro-optical material, a first resin film provided between the substrate and the electro-optical material, the first resin film, and the electro-optical material. A second resin film provided between the substance, a conductive film provided between the substrate and the first resin film, and provided between the first resin film and the second resin film. And a light shielding film.

  In the above electro-optical device, a conductive film is provided between the substrate and the first resin film, and a light shielding film is provided between the first resin film and the second resin film. That is, by providing the conductive film and the light shielding film on different planes with the first resin film interposed therebetween, the conductive film and the light shielding film do not come into contact with each other and are electrically short-circuited, and the width of the light shielding film is flat. In view of this, it can be provided widely up to a position close to or overlapping the light shielding film. As a result, light transmitted through the substrate can be reliably shielded by the light shielding film.

  In the electro-optical device having the above-described configuration, generally, an electrode constituting a pixel for display is provided on a resin film. In such a configuration, when the distance between the electrode and the conductive film is narrow, a parasitic capacitance may be generated between the electrode and the adjacent conductive film that is not connected to the electrode. This parasitic capacitance causes, for example, vertical crosstalk (so-called vertical crosstalk). Here, vertical crosstalk refers to colors such as cyan, magenta, and yellow that are complementary to each color of red, blue, and green, or a single color such as red, blue, and green, with gray as the background color. When displayed in a rectangular shape, the region located in the vertical direction of the rectangular display region is displayed brighter than the background color that should be displayed and is displayed in a slightly colored manner. .

  In the electro-optical device of the present invention, a thick resin film can be provided on the substrate by providing the two resin films of the first resin film and the second resin film on the substrate. As a result, the gap between the conductive film provided on the substrate and the electrode provided on the resin film can be widened, so that the parasitic capacitance between the conductive film and the electrode is reduced and crosstalk is reduced. Occurrence can be prevented.

  Next, in the first electro-optical device according to the present invention, a plurality of subpixels are provided side by side on the substrate, a light reflecting film is provided in a region of each of the subpixels, and the light shielding film includes: It is desirable to provide a boundary between the sub-pixels adjacent to each other and a region between the light reflection films adjacent to each other.

  In the electro-optical device according to the aspect of the invention, the region in the sub-pixel includes a portion where the light reflecting film is provided and a portion where the light reflecting film is not provided. In the region where the light reflecting film is provided, external light such as room light is reflected by the light reflecting film and the reflected light is used for display of the electro-optical device, that is, reflective display is performed. On the other hand, in a region where the light reflecting film is not provided, light from an illuminating unit such as a backlight is transmitted through the substrate and supplied to the electro-optical material, and the transmitted light is used for display of the electro-optical device. In other words, so-called transmissive display is performed.

  In the electro-optical device according to the aspect of the invention, by providing a light shielding film in a region between adjacent light reflecting films, transmitted light is transmitted to a region where the light reflecting film is provided, that is, a region where a reflective display is performed. Leakage can be prevented. In addition, since the light shielding film can be provided with a wide width, light leakage from between the light reflecting films can be prevented by the light shielding film even if the interval between the light reflecting films adjacent to each other is set wide. Thus, if the space | interval of light reflection films can be taken widely, it can prevent that the light reflection films which mutually adjoin each other contact, and are electrically short-circuited.

Next, in the first electro-optical device according to the invention, when the width of the light shielding film is a and the width of the region between the light reflecting films adjacent to each other is b,
a> b
It is desirable that In this case, even when the light reflecting film is patterned by photoetching, overetching occurs, and even if the distance between the light reflecting films is wider than a predetermined distance, Transmitted light can be reliably blocked.

  Next, a second electro-optical device according to the present invention includes a substrate that supports an electro-optical material, a first resin film provided between the substrate and the electro-optical material, and the first resin film. A second resin film provided between the electro-optic material, a recess provided in the second resin film, a conductive film provided between the substrate and the first resin film, A first light-shielding film provided opposite to the recess between the substrate and the first resin film; and adjacent to side surfaces on both sides of the recess between the first resin film and the second resin film. And a second light-shielding film provided.

  In the second electro-optical device according to the invention, the concave portion provided in the second resin film is used to form, for example, an alignment film, which is a film element provided on the second resin film, with a uniform film thickness. Is. Further, the second light shielding film adjacent to the side surface of the recess can be completely covered with the second resin film, or can be provided so as to be exposed from the side surface of the recess to the inside of the recess.

  In the electro-optical device having the above configuration, in addition to the first light shielding film provided to face the concave portion of the first resin film, between the first resin film and the second resin film and on the side surfaces on both sides of the concave portion. The second light-shielding film is provided adjacently. As a result, the conductive film provided under the first resin film and the second light shielding film provided on the first resin film do not come into contact with each other and are not electrically short-circuited. It can be provided widely. Thereby, the light which permeate | transmits a board | substrate can be reliably light-shielded by both a 1st light shielding film and a 2nd light shielding film. Moreover, since a thick resin film can be provided on the substrate by providing two layers of the first resin film and the second resin film on the substrate, the conductive film and the resin film provided on the substrate can be provided. It is possible to reduce the parasitic capacitance between the electrode and the electrode provided on the electrode and to prevent the occurrence of crosstalk.

  Next, in the second electro-optical device according to the invention, a plurality of subpixels are provided in a plane on the substrate, and the concave portion is provided in a groove shape along a boundary between the adjacent subpixels. It is desirable that In the aspect of the present invention, the concave portion provided in the groove shape is provided as a groove that communicates over a plurality of subpixels along the boundary between adjacent subpixels. If such a groove-shaped recess is provided, a film element on the second resin film, for example, an alignment film, can be formed in a uniform film thickness over the entire area of the substrate.

  Next, in the second electro-optical device according to the invention, a light reflecting film is provided in the region of each of the sub-pixels, and the concave portion is provided in a region between the light reflecting films adjacent to each other. Preferably, the first light shielding film is provided in a region between the light reflecting films adjacent to each other, and the second light shielding film is provided on both sides of the recess and adjacent to the side surface of the recess.

  Since the electro-optical device according to the aspect of the invention includes the first light-shielding film and the second light-shielding film in the region between the light reflecting films adjacent to each other, the region where the light reflecting film is provided, that is, the reflective display is performed. The first light-shielding film and the second light-shielding film can prevent the transmitted light from leaking into the area. Further, by providing the first light-shielding film and the second light-shielding film, the entire light-shielding film can be widened, so that light leakage can be prevented even when the interval between the light reflecting films adjacent to each other is widened. If the interval between the light reflecting films can be widened, it is possible to prevent the light reflecting films adjacent to each other from contacting each other and being electrically short-circuited.

Next, in the second electro-optical device according to the invention, when the width of the first light shielding film is c and the interval between the second light shielding films adjacent to each other is d,
c ≧ d
It is desirable that By doing so, there is no gap between the first light-shielding film and the second light-shielding film in a plan view, and thus the transmitted light is surely transmitted in the region where the first light-shielding film and the second light-shielding film are provided. Can be shielded from light.

Next, in the second electro-optical device according to the invention, the width of the region shielded by the first light shielding film and the second light shielding film is e, and the region between the adjacent light reflecting films is e. When the width is f,
e> f
It is desirable that In this case, even when the light reflecting film is patterned by the photoetching process, overetching occurs, and even when the distance between the light reflecting films is larger than a predetermined distance, the first light shielding film and the second light shielding film are formed. The transmitted light can be reliably shielded by the wide light shielding film made of the film.

  Next, an electronic apparatus according to the present invention includes the liquid crystal display device having the above-described configuration. In the electro-optical device according to the invention, the conductive film is provided between the substrate and the first resin film, and the light shielding film is provided between the first resin film and the second resin film. That is, the conductive film and the light shielding film are provided on different planes with the first resin film interposed therebetween. As a result, the conductive film and the light shielding film do not come into electrical contact with each other, so that the width of the light shielding film can be widened. As a result, light transmitted through the substrate can be reliably shielded. Moreover, since a thick resin film can be provided on the substrate by providing two layers of the first resin film and the second resin film on the substrate, the conductive film and the resin film provided on the substrate can be provided. The cross capacitance can be prevented by reducing the parasitic capacitance between the electrode and the electrode. Therefore, also in the electronic apparatus according to the present invention using this electro-optical device, light leakage of transmitted light can be reliably prevented, and crosstalk can be prevented.

(First embodiment of electro-optical device)
Hereinafter, as an example of an electro-optical device, an embodiment of the present invention will be described by exemplifying a case where the present invention is applied to a liquid crystal display device capable of color display by a transflective type and a TFD (Thin Film Diode) driving method. To do. In the present embodiment, the present invention is applied to a liquid crystal display device adopting ECB (Electrically Controlled Birefringence) as a liquid crystal mode. Of course, the present invention is not limited to the embodiment. In the following description, reference will be made to the drawings as necessary. In this drawing, in order to clearly show important constituent elements among the structure composed of a plurality of constituent elements, the relative dimensions different from actual ones are shown. It may be indicated by

  FIG. 1 shows a side sectional structure of the entire liquid crystal display device according to the present invention. FIG. 2 is an enlarged view of a portion indicated by an arrow Z1 in FIG. FIG. 3A shows a planar structure according to the arrow A in FIG. Moreover, FIG.3 (b) has shown the cross section according to the arrow Z2-Z2 line | wire of Fig.3 (a). FIG. 1 is a cross-sectional view taken along line Z3-Z3 in FIG.

  In FIG. 1, a liquid crystal display device 1 includes a liquid crystal panel 2 that is an electro-optical panel, and a lighting device 3 attached to the liquid crystal panel 2. Regarding the liquid crystal display device 1, the side on which the arrow A is drawn is the observation side, and the illumination device 3 is disposed on the opposite side to the observation side with respect to the liquid crystal panel 2 and functions as a backlight.

  The liquid crystal panel 2 includes a pair of substrates 7 and 8 that are bonded to each other by a rectangular or square and annular sealing material 6 when viewed from the direction of arrow A. One substrate 7 is an element substrate on which a switching element is formed. The other substrate 8 is a color filter substrate on which a color filter is formed. In the present embodiment, the color filter substrate 8 is disposed on the observation side, and the element substrate 7 is disposed on the back as viewed from the observation side.

  The sealing material 6 forms a gap, so-called cell gap G, between the element substrate 7 and the color filter substrate 8. The sealing material 6 has a liquid crystal injection port (not shown) in a part thereof, and liquid crystal as an electro-optical material is injected between the element substrate 7 and the color filter substrate 8 through the liquid crystal injection port. The injected liquid crystal forms a liquid crystal layer 12 in the cell gap G as a layer of electro-optic material. The liquid crystal injection port is sealed with resin after the liquid crystal injection is completed. As a method for injecting liquid crystal, a method of dropping liquid crystal in a region surrounded by a continuous annular sealing material 6 having no liquid crystal injection port can be adopted in addition to the method of performing through the liquid crystal injection port as described above. In the present embodiment, nematic liquid crystal having positive dielectric anisotropy can be used as the liquid crystal.

  The distance between the cell gaps G, and hence the thickness of the liquid crystal layer 12 is maintained constant by a plurality of spacers (not shown) provided in the cell gap G. The spacer can be formed by placing a plurality of spherical resin members randomly (that is, disorderly) on the surface of the element substrate 7 or the color filter substrate 8. The spacer can also be formed in a columnar shape at a predetermined position by photolithography.

  The illumination device 3 includes an LED (Light Emitting Diode) 13 as a light source and a light guide body 14. As the light source, in addition to a point light source such as an LED, a linear light source such as a cold cathode tube can be used. The light guide 14 is formed by, for example, a molding process using a light-transmitting resin as a material, the side facing the LED 13 is the light incident surface 14a, and the surface facing the liquid crystal panel 2 is the light emitting surface 14b. is there. A light reflecting layer 16 is provided on the back surface of the light guide body 14 as viewed from the observation side indicated by the arrow A, if necessary. Moreover, the light-diffusion layer 17 is provided in the light-projection surface 14b of the light guide 14 as needed.

  The element substrate 7 includes a first translucent substrate 7a. The first translucent substrate 7a is formed of, for example, translucent glass or translucent plastic. A polarizing plate 18a is attached to the outer surface of the first light transmissive substrate 7a. If necessary, an optical element other than the polarizing plate 18a, for example, a retardation plate can be additionally provided. On the other hand, on the inner surface of the first translucent substrate 7a, as shown in FIG. 2, which is an enlarged view of the portion indicated by the arrow Z1, a data line 19 as a conductive film is arranged in the column direction Y (that is, in FIG. (Horizontal direction). A TFD (Thin Film Diode) element 21 that is a switching element that functions as an active element is connected to the data line 19.

  A plurality of the data lines 19 are formed as viewed from the direction of the arrow A, and the plurality of the data lines 19 are arranged in parallel at equal intervals along the row direction X (that is, the direction perpendicular to the paper surface). The data line 19 is formed of a metal such as Cr (chromium) or Mo (molybdenum), for example. A plurality of TFD elements 21 are provided at equal intervals along each data line 19.

  A first resin film 22 is formed on the TFD elements 21 and the data lines 19, a light shielding film 28 is formed thereon, a second resin film 23 is formed thereon, and a second resin film 23 is formed thereon. A light reflection film 24 is formed, a pixel electrode 25 is formed thereon, and an alignment film 26a is formed thereon. This alignment film 26a is subjected to an alignment process, for example, a rubbing process, whereby the alignment of liquid crystal molecules in the vicinity of the element substrate 7 is determined. In the present embodiment, the alignment of the liquid crystal molecules is set to be horizontal alignment in a state where no electric field is applied to the liquid crystal.

  The first resin film 22 and the second resin film 23 are formed, for example, by patterning a resin having translucency, photosensitivity, and insulation, such as an acrylic resin or a polyimide resin, by photolithography. The light shielding film 28 is formed, for example, by patterning a metal material such as Cr or Al (aluminum) by a photoetching process. The light shielding film 28 will be described in detail later.

  The light reflecting film 24 is formed, for example, by patterning a light reflecting material such as Al (aluminum), Al alloy or the like by a photoetching process. The pixel electrode 25 is formed by patterning a metal oxide such as ITO (Indium Tin Oxide) with a photoetching process. The alignment film 26a is formed by application of polyimide or the like, for example.

  A plurality of light reflecting films 24 and pixel electrodes 25 are formed in a matrix along the row direction X and the column direction Y on the element substrate 7 when viewed in plan from the arrow A direction. As shown in FIG. 3A, the light reflection film 24 and the pixel electrode 25 are connected to the individual TFD elements 21 and are provided along the data lines 19.

  In FIG. 2, the TFD element 21 is formed by a pair of TFD elements 31a and 31b electrically connected in series. The first TFD element 31a is formed by overlapping the first element electrode 32, the insulating film 33, and the second element electrode 34a in that order. The second TFD element 31b is formed by stacking the first element electrode 32, the insulating film 33, and the second element electrode 34b in that order. The first element electrode 32 is formed of, for example, Ta (tantalum) or Ta alloy. As the Ta alloy, for example, TaW (tantalum / tungsten) can be used. The insulating film 33 is formed by, for example, an anodic oxidation process. The second element electrodes 34a and 34b are made of, for example, Cr.

  In the first resin film 22 and the second resin film 23, a contact hole 27, which is a through hole as an opening for electrically connecting the pixel electrode 25 and the TFD element 21, is formed. The contact hole 27 is formed at a position that does not overlap the element body portion of the TFT element 21 when viewed in plan from the direction of the arrow A and overlaps the pixel electrode 25.

  In FIG. 3A, the second element electrode 34 a in the first TFD element 31 a extends from the data line 19. Further, the second element electrode 34 b in the second TFD element 31 b is connected to the pixel electrode 25 through the contact hole 27. When considering that a signal is transmitted from the data line 19 to the pixel electrode 25, the first TFD element 31a and the second TFD element 31b are connected in series with two TFD elements having opposite polarities. This structure is called a back-to-back structure. In this embodiment, a TFD element having a back-to-back structure is used. However, the TFD element may be formed by a single TFD element.

  In the present embodiment, as shown in FIG. 2, an interlayer insulating film composed of a first resin film 22 and a second resin film 23 is provided below the pixel electrode 25, so that the layer of the pixel electrode 25 and the TFD element 21 are formed. The layer is divided into separate layers. This structure has the following advantages over the structure in which the pixel electrode 25 and the TFD element 21 are formed in the same layer.

  First, since an interlayer insulating film covering the TFD element 21 and the data line 19 is formed and the pixel electrode 25 is formed on the interlayer insulating film, the pixel electrode 25 and the TFD element 21, and the pixel electrode 25 and the data line are formed. The parasitic capacitance between 19 can be reduced. In this case, if the interlayer insulating film is formed of a single-layer resin film, the thickness of the interlayer insulating film cannot be increased unless a high-viscosity resin material is used. However, when a highly viscous resin material is used, it becomes difficult to make the thickness of the interlayer insulating film uniform. On the other hand, as in this embodiment, the interlayer insulating film is formed by laminating two layers of the first resin film 22 and the second resin film 23, thereby making the individual resin films 22 and 23 low viscosity. It can be formed of a resin material, and both the uniformity of the thickness of the interlayer insulating film and the increase of the thickness can be achieved. If the interlayer insulating film can be formed uniformly and thickly, the parasitic capacitance can be reduced uniformly.

  Further, since the pixel electrode 25 and the TFD element 21 and the pixel electrode 25 and the data line 19 are formed in a laminated structure via the interlayer insulating film, the pixel electrode is formed so as to cover the TFD element 21 and the data line 19. 25, and the pixel electrode 25 can be made larger than the case where the pixel electrode 25 is formed on the same plane as the TFD element 21 and the data line 19, and thus the effective pixel area can be made larger. Will be able to.

  As a result of the effects described above, it is possible to provide an electro-optical device with extremely high reliability. In particular, in a display device, it is possible to realize display with a large aperture ratio and excellent visibility.

  In FIG. 1, the color filter substrate 8 facing the element substrate 7 includes a second light-transmitting substrate 8 a that is rectangular or square when viewed from the direction of arrow A. The second translucent substrate 8a is made of translucent glass, plastic, or the like, for example. A polarizing plate 18b is attached to the outer surface of the second light transmissive substrate 8a. If necessary, an optical element other than the polarizing plate 18b, for example, a retardation plate may be additionally provided. In the present embodiment, the polarizing plates 18a and 18b are arranged in a crossed Nicols arrangement. The display mode of the liquid crystal display device is set to a normally white mode, that is, a display mode in which white display is performed when no voltage is applied and black display is applied when a voltage is applied.

  As shown in FIG. 2, a colored film 41 and a counter light-shielding film 42 are formed on the inner surface of the second translucent substrate 8 a, and an overcoat film 43 is formed on the colored film 41 and the counter light-shielding film 42. Is formed, a strip electrode 44 is formed thereon, and an alignment film 26b is formed thereon. The strip electrode 44 extends in the row direction X of FIG. 2 (that is, the direction perpendicular to the paper surface). The alignment film 26b is formed, for example, by applying polyimide or the like.

  The colored film 41 is an element constituting a color filter, and each colored film 41 is formed in a rectangular or square dot shape when viewed from the arrow A direction. A plurality of the colored films 41 are arranged in a matrix in the row direction X and the column direction Y when viewed from the arrow A direction. As shown in FIGS. 3A and 3B, the counter light-shielding film 42 is formed in a strip shape extending in the column direction Y, and a plurality of the strip-shaped counter light-shielding films 42 are adjacent to each other in the row direction X. Between the colored films 41 to be processed.

  Each of the colored films 41 is set to an optical characteristic that allows one of B (blue), G (green), and R (red) to pass therethrough, and the colored films 41 of B, G, and R are arranged in a predetermined arrangement, for example, a stripe. They are arranged in an array, mosaic array, and delta array. The optical characteristics of the colored film 41 are not limited to the three primary colors B, G, and R, and may be a characteristic that allows the three primary colors C (cyan), M (magenta), and Y (yellow) to pass. The counter light-shielding film 42 is formed by overlapping colored films 41 of different colors or by using a predetermined material (for example, Cr).

  In FIG. 2, an overcoat layer 43 formed on the colored film 41 and the counter light-shielding film 42 planarizes the surfaces of the colored film 41 and the counter light-shielding film 42, and the strip electrode 44 is thus planarized. Formed on the overcoat layer 43. The strip electrode 44 is formed by patterning a metal oxide such as ITO, for example, by a photoetching process. A plurality of strip electrodes 44 are provided on the color filter substrate 8 so as to be parallel to each other when viewed from the direction of the arrow A. The individual strip electrodes 44 extend in the row direction X (that is, the direction perpendicular to the paper surface). In FIG. 2, the alignment film 26b formed on the strip electrode 44 is subjected to an alignment process, for example, a rubbing process, whereby the alignment of liquid crystal molecules in the vicinity of the color filter substrate 8 is determined.

  In FIG. 1, the plurality of pixel electrodes 25 provided on the element substrate 7 are arranged in a matrix in the row direction X and the column direction Y as seen in a plan view from the arrow A direction. On the other hand, the plurality of strip electrodes 44 provided on the color filter substrate 8 are arranged in stripes so as to overlap with the plurality of pixel electrodes 25 arranged in the row direction X when viewed in a plan view from the arrow A direction. As described above, the pixel electrode 25 and the strip electrode 44 overlap each other when viewed from the direction of the arrow A, and the overlapped region forms a sub-pixel D which is a minimum unit for display. A plurality of sub-pixels D are arranged in a matrix in the row direction X and the column direction Y, thereby forming a rectangular or square display region V as viewed from the direction of the arrow A. In the display region V, letters, numbers, An image such as a graphic is displayed.

  In the case of performing color display using the colored film 41 composed of the three colors B, G, and R as in the present embodiment, 3 corresponding to the three colored films 41 corresponding to the three colors B, G, and R. One subpixel D forms one pixel. On the other hand, when performing monochromatic display in black and white or any two colors, one pixel is formed by one sub-pixel D.

  In FIG. 2, the light reflecting film 24 of the element substrate 7 is formed by, for example, photoetching. The light reflecting film 24 is provided in a partial region R of the sub-pixel D, and is not provided in the remaining region T. The region T is a part of the rectangular region in the sub-pixel D as shown in FIG. On the other hand, the region R is the remaining region in the sub-pixel D, and in this embodiment, the region T surrounds the region T in a U shape. The pixel electrode 25 is provided over the entire subpixel D, and the light reflecting film 24 is provided so as to coincide with the U-shaped region R.

  In each of the sub-pixels D, a region where the light reflecting film 24 exists is a reflective display region R, and a region T where the light reflecting film 24 does not exist is a transmissive display region. In FIG. 2, the external light L0 incident from the direction of arrow A is reflected by the light reflecting film 24 in the reflective display region R. On the other hand, the light L1 in FIG. 2 emitted from the light guide 14 of the illumination device 3 in FIG.

  On the surface of the second resin film 23 and corresponding to the reflective display region R in each sub-pixel D, a plurality of concave portions and a plurality of convex portions are randomly formed when viewed in plan from the arrow A direction. As a result, an uneven pattern is provided. The light reflecting film 24 is formed on the second resin film 23 on which the concave / convex pattern is formed, and itself has the same concave / convex pattern shape. By forming the uneven pattern on the light reflecting film 24 in this way, the light L0 reflected by the light reflecting film 24 is not specularly reflected, but light having appropriate scattered light and appropriate directivity. it can.

  Next, in FIG. 1, the first translucent substrate 7 a constituting the element substrate 7 has an overhanging portion 45 that projects outward from the color filter substrate 8. A wiring 46 is formed on the surface of the overhanging portion 45 by a photoetching process or the like. A plurality of wirings 46 are formed when viewed from the direction of arrow A, and the plurality of wirings 46 are arranged in parallel at equal intervals along the direction perpendicular to the paper surface. Further, a plurality of external connection terminals 47 are formed on the side edges of the overhanging portion 45 so as to be arranged in parallel with each other at equal intervals along the direction perpendicular to the paper surface. For example, an FPC (Flexible Printed Circuit) substrate (not shown) is connected to the side edge of the overhanging portion 45 provided with these external connection terminals 47.

  The plurality of wirings 46 are formed so as to extend in the column direction Y toward the region surrounded by the sealing material 6. A part of these wirings 46 extends in the column direction Y toward the area surrounded by the sealing material 6 and is connected to the data line 19. Further, the other part of the plurality of wirings 46 is connected to each strip electrode 44 on the color filter substrate 8 through a conductive material 48 included in the seal material 6.

  A driving IC 50 is mounted on the surface of the overhanging portion 45 by a COG (Chip On Glass) technique using an ACF (Anisotropic Conductive Film) 49. The driving IC 50 transmits a data signal to the data line 19 and transmits a scanning signal to the strip electrode 44. The driving IC 50 may be formed by one IC chip, or may be formed by a plurality of IC chips as necessary. When the driving IC 50 is constituted by a plurality of IC chips, these IC chips are mounted side by side in the direction perpendicular to the paper surface of FIG.

  According to the liquid crystal display device 1 configured as described above, when the liquid crystal display device 1 is placed outdoors or in a bright room, a reflective display is performed using external light such as sunlight or room light. . On the other hand, when the liquid crystal display device 1 is placed outside a dark room or in a dark room, a transmissive display is performed using the lighting device 3 as a backlight.

  In the case of performing the reflection type display, the external light L0 that has entered the liquid crystal panel 2 through the color filter substrate 8 from the direction of the arrow A on the observation side in FIG. Then, the light is reflected by the light reflection film 24 in the reflective display region R and supplied to the liquid crystal layer 12 again. On the other hand, when the transmissive display is performed, the light source 13 of the illumination device 3 in FIG. The light is emitted from the surface 14b as planar light. The emitted light is supplied to the liquid crystal layer 12 through the transmissive display region T, that is, the region where the light reflection film 24 does not exist, as indicated by reference numeral L1 in FIG.

  While light is supplied to the liquid crystal layer 12 as described above, a predetermined gap specified by the scanning signal and the data signal is provided between the pixel electrode 25 on the element substrate 7 side and the strip electrode 44 on the color filter substrate 8 side. Thus, the orientation of the liquid crystal molecules in the liquid crystal layer 12 is controlled for each sub-pixel D. As a result, the light supplied to the liquid crystal layer 12 is modulated for each sub-pixel D. When this modulated light passes through the polarizing plate 18b (see FIG. 1) on the color filter substrate 8 side, the passage is restricted for each sub-pixel D according to the polarization characteristics of the polarizing plate 18b. Images such as letters, numbers, figures, etc. are displayed on the surface of the screen, and are visually recognized from the direction of arrow A.

  Hereinafter, the light shielding film 28 in FIG. 2 will be described in detail. As illustrated in FIG. 2, the light shielding film 28 is provided between the first resin film 22 and the second resin film 23. The light shielding film 28 is provided in a region indicated by oblique lines in FIG. 3A, that is, a region between adjacent light reflecting films 24 at a boundary between adjacent subpixels D. In the present embodiment, the light shielding film 28 is formed in a strip shape extending in the column direction Y (that is, the vertical direction in the drawing), and a plurality of the strip-shaped light shielding films 28 are adjacent to each other in the row direction X. It is provided between.

In this embodiment, as shown in FIG. 3B, the width of the light-shielding film 28 formed in a strip shape is “a”, and the width of the region between the light reflecting films 24 adjacent to each other is “b”. When
a> b
It is said. By doing so, as shown in FIG. 3A, a part of the light shielding film 28 and a part of the light reflecting film 24 are overlapped when seen in a plan view.

  In the present embodiment, the light shielding film 28 can be formed by patterning a metal material having a light shielding property by, for example, a photoetching process. As this metal material, for example, the same material as the data line 19, for example, Cr or the like can be used. Further, the same material as the light reflecting film 24, for example, Al or Al alloy can be used. These Cr, Al, Al alloy and the like are conductive materials.

  By the way, in the conventional liquid crystal display device, the light shielding film is often provided on the surface of the substrate on the same plane as the conductive film such as the data line. In a liquid crystal display device having such a structure, a light shielding film and a conductive film such as a data line are often formed simultaneously using the same metal material, such as Cr. In addition, it is desirable that the light shielding film provided on the substrate has a wider width. This is because, by increasing the width of the light shielding film, an area where the light reflecting film and the light shielding film overlap in a plane is provided, and the transmitted light from the illumination device is reliably prevented from leaking into the reflective display area. It is.

  However, when the light shielding film and the data line are formed using the same material on the same plane, the data line and the light shielding film may be electrically short-circuited when the width of the light shielding film is wide. For this reason, it is difficult to increase the width of the light shielding film, and the width has to be reduced. In the etching process when patterning the light reflecting film, if the relative position between the light shielding film and the light reflecting film is shifted due to the over-etching of Al, which is the material of the light reflecting film, the transmitted light is reflected. As a result, the liquid crystal display device leaks into the display area, and there is a possibility that the display contrast at the time of transmissive display of the liquid crystal display device is lowered.

  On the other hand, in the liquid crystal display device of this embodiment, in FIG. 3B, the data line 19 is provided between the first translucent substrate 7a and the first resin film 22, and the first resin film 22 and the first resin film 22 The light shielding film 28 is provided between the two resin films 23. That is, the data line 19 and the light shielding film 28 are provided on different planes with the first resin film 22 interposed therebetween. Thus, the data line 19 and the light shielding film 28 do not come into contact with each other and are not electrically short-circuited, so that the width of the light shielding film 28 can be widened.

Further, in the present embodiment, the light shielding film 28 is provided in a region between the light reflecting films 24 adjacent to each other at the boundary between the adjacent subpixels D, as indicated by oblique lines in FIG. It has been. The light shielding film 28 is formed in a strip shape extending in the column direction Y (that is, the vertical direction in FIG. 3A), and a plurality of the strip-shaped light shielding films 28 are formed in the row direction X (that is, FIG. 3A). ) Between the light reflecting films 24 adjacent to each other. When the width of the light shielding film 28 formed in a band shape is “a” and the width of the region between the light reflecting films 24 adjacent to each other is “b”,
a> b
The relationship is set.

  Thus, if the width a of the band-shaped light-shielding film 28 is made wider than the width b of the region between the light reflecting films 24 adjacent to each other, the light reflecting film may be formed by overetching or the like when the light reflecting film 24 is patterned. Even if the relative position between the light shielding film 24 and the light shielding film 28 is shifted, the light reflecting film 24 and the light shielding film 28 can partially overlap in a plan view. Accordingly, it is possible to reliably prevent the light L1 transmitted through the substrate 7a from leaking between the light reflecting films 24 by the light shielding film 28, thereby preventing a decrease in contrast.

  Further, two layers of resin films, the first resin film 22 and the second resin film 23, were provided on the substrate 7a. In this case, the thick interlayer insulating film can be provided on the substrate 7a with a uniform film thickness as compared with the case where the interlayer insulating film is formed with one layer. As a result, since the distance between the data line 19 and the pixel electrode 25 can be set long, the parasitic capacitance between the data line 19 and the pixel electrode 25 can be reduced. Therefore, crosstalk can be prevented.

(Second embodiment of electro-optical device)
Next, another embodiment of the electro-optical device according to the invention will be described. Also in this embodiment, a liquid crystal display device will be described as an example of an electro-optical device. The appearance of the liquid crystal display device according to this embodiment is generally the same as that shown in FIG. FIG. 4 shows the main part of the liquid crystal display device according to the present invention, and is an enlarged plan view of a sub-pixel portion in the liquid crystal display device of FIG. FIG. 5 shows a cross section according to the arrow Z4-Z4 line of FIG.

In the first embodiment described above, as shown in FIG. 3B, in the region between the light reflecting films 24 adjacent to each other between the first resin film 22 and the second resin film 23. A light shielding film 28 is provided. The width a of the light shielding film 28 and the width b of the region between the light reflecting films adjacent to each other are as follows:
a> b
The relationship is set.

  On the other hand, in this embodiment, as shown in FIG. 5, a groove-shaped recess 51 is provided in the second resin film 23. A first light shielding film 52 is provided between the first light-transmissive substrate 7 a and the first resin film 22, and a second light shielding film 53 is provided between the first resin film 22 and the second resin film 23. Hereinafter, the present embodiment will be described focusing on differences from the embodiment shown in FIGS. 3 (a) and 3 (b). In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the present embodiment, the components of the liquid crystal display device 1 other than the second resin film 23, the first light shielding film 52, and the second light shielding film 53 of FIG. 5 are the same as those of the first resin shown in FIGS. It can be the same as in the embodiment.

  In FIG. 5, a recess 51 is provided in the second resin film 23. The recess 51 is provided at the boundary between the sub-pixels D adjacent to each other. Each recess 51 is formed in a linear groove shape extending in the column direction Y (that is, the vertical direction in FIG. 4) along the boundary between adjacent sub-pixels D, as shown in a plan view in FIG. Has been. A plurality of the recesses 51 formed in the groove shape is provided at the boundary between the sub-pixels D adjacent to each other in the row direction X. The recess 51 can be provided by removing the second resin film 23 in a region corresponding to the recess 51 by, for example, photolithography.

  Next, as shown in FIG. 5, the first light-shielding film 52 is located between the first light-transmissive substrate 7 a and the first resin film 22, at a position facing the concave portion 51, that is, subpixels adjacent to each other. It is provided at the boundary between D, that is, the region between the light reflecting films 24 adjacent to each other. The first light-shielding film 52 is formed in a strip shape extending in the column direction Y (that is, the vertical direction in FIG. 4), as indicated by the diagonally slanting left line when viewed in plan in FIG. A plurality of the strip-shaped first light shielding films 52 are provided between the light reflecting films 24 adjacent to each other in the row direction X (that is, the horizontal direction in FIG. 4).

  Next, as shown in FIG. 5, the second light shielding film 53 is provided between the first resin film 22 and the second resin film 23. The second light shielding film 53 is provided on both sides of the recess 51 and adjacent to the side surface of the recess 51. The second light-shielding film 53 extends in the column direction Y (that is, the vertical direction in FIG. 4) along the side surface of each concave portion 51 as shown by the diagonally downward slanting line in a plan view in FIG. It is formed in a band shape.

  The first light-shielding film 52 and the second light-shielding film 53 can be formed by patterning a light-shielding metal material by, for example, a photoetching process. As this metal material, for example, the same material as the data line 19, for example, Cr or the like can be used. Further, the same material as the light reflecting film 24, for example, Al or Al alloy can be used. Note that the first light shielding film 52 is provided on the same plane as the data line 19, and it is desirable that the first light shielding film 52 and the data line 19 are simultaneously formed of the same material.

(Position of the first light shielding film and the second light shielding film)
Here, in FIG. 5, when the width of the first light shielding film 52 formed in a belt shape is “c” and the interval between the second light shielding films 53 adjacent to each other with the concave portion 51 interposed therebetween is “d”,
c ≧ d
It is desirable that In this embodiment,
c> d
The case where it is is illustrated. As shown in FIG. 4, the first light shielding film 52 and the second light shielding film 53 provided in such a relationship have both end portions of the first light shielding film 52 and one end portion of the second light shielding film 53. It overlaps in plan view. As described above, the first light shielding film 52 and the second light shielding film 53 are planarly overlapped, so that the width of the region shielded by the first light shielding film 52 and the second light shielding film 53 is as shown in FIGS. It may be the width indicated by “e”.

Further, in the present embodiment, in FIG. 5, when the interval between the light reflecting films 24 adjacent to each other is “f”, the width “e” of the region shielded by the first light shielding film 52 and the second light shielding film 53. "
e> f
It is.

  In the present embodiment, a groove-shaped recess 51 is provided in the second resin film 23. As a result, when the alignment film 26a is formed on the pixel electrode 25 by printing based on the roller transfer method, the alignment film 26a can be widely and uniformly distributed by flowing into the recess 51. The alignment film 26a can be provided uniformly.

Further, in the present embodiment, when the width of the first light shielding film 52 formed in a belt shape is “c” and the interval between the second light shielding films 53 adjacent to each other with the concave portion 51 interposed therebetween is “d”, The relationship between “c” and “d”
c> d
It set so that it might become. As a result, there is no gap between the first light-shielding film 52 and the second light-shielding film 53 in plan view. The light can be reliably blocked.

Furthermore, when the width of the region shielded by the first light shielding film 52 and the second light shielding film 53 is “e” and the interval between the light reflecting films 24 adjacent to each other is “f”, these “e” And "f"
e> f
It set so that it might become. By doing so, the width of the light shielding film provided for the interval e between the light reflecting films 24 adjacent to each other can be made sufficiently wide, so that over-etching occurs when the light reflecting film 24 is patterned, Even when the distance between the light reflecting films 24 is wider than a predetermined distance, the transmitted light can be reliably shielded by the wide light shielding film including the first light shielding film 52 and the second light shielding film 53.

  Note that the width “e” of the region shielded by the first light shielding film 52 and the second light shielding film 53 is set to a sufficiently wide width in a plan view, as indicated by hatching in FIG. However, since the data line 19 and the second light-shielding film 53 are provided on different planes with the first resin film 22 in between, the data line 19 and the second light-shielding film 53 are in contact and electrically short-circuited. Therefore, a wide substantial light-shielding area can be secured.

  In addition, since the two resin films of the first resin film 22 and the second resin film 23 are provided on the substrate 7a, the film thickness is formed on the substrate 7a as compared with the case where the interlayer insulating film is formed with one layer. A thick interlayer insulating film can be provided uniformly. As a result, since the distance between the data line 19 and the pixel electrode 25 can be set long, the parasitic capacitance between the data line 19 and the pixel electrode 25 can be reduced. Therefore, crosstalk can be prevented.

(Third embodiment of electro-optical device)
Next, still another embodiment of the electro-optical device according to the invention will be described. Also in this embodiment, a liquid crystal display device will be described as an example of an electro-optical device. The appearance of the liquid crystal display device according to this embodiment is generally the same as that shown in FIG. FIG. 6 shows the main part of the liquid crystal display device according to the present invention, and is an enlarged plan view of a sub-pixel portion in the liquid crystal display device of FIG. Moreover, Fig.7 (a) has shown the cross section according to the arrow Z5-Z5 line | wire of FIG. FIG. 7B shows a cross section according to the arrow Z6-Z6 line of FIG.

  In the first embodiment described above, as shown in FIG. 3A in plan view, the light reflecting film 24 is provided in a U shape in the area of each sub-pixel D to form the reflective display area R. is doing. A transmissive display region T is formed surrounded by a U-shaped light reflecting film 24. The light shielding film 28 is provided in a band shape over a plurality of subpixels D in a region between the light reflecting films 24 adjacent to each other.

  On the other hand, in this embodiment, as shown in FIG. 6, the light reflecting film 64 is provided in a rectangular shape in a part of the area of each sub-pixel D to form a reflective display area R. The other rectangular area in the area of the sub-pixel D is a transmissive display area T. The light shielding film 68 is provided in a region between the light reflecting films 64 adjacent to each other, that is, in a part of the boundary between the sub pixels D adjacent to each other. Hereinafter, the present embodiment will be described focusing on differences from the embodiment shown in FIGS. 3 (a) and 3 (b). In the present embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the present embodiment, the light shielding film 68 includes the first resin film 22 and the second resin as shown in FIG. 7A which is a cross section of the reflective display region R, that is, a cross section according to the Z5-Z5 line of FIG. It is provided between the films 23. The light shielding film 68 is formed in a strip shape extending in the column direction Y (that is, the direction perpendicular to the paper surface of FIG. 7A), and a plurality of the strip-shaped light shielding films 68 are arranged in the row direction X (that is, FIG. 7A). ) Between the light reflection films 64 adjacent to each other.

  In this embodiment, the light reflection film 64 is provided in a rectangular shape on the upper side of the sub-pixels D formed in a rectangular shape that is long in the column direction Y in FIG. 6, and a reflective display region R is formed. On the other hand, the transmissive display region T is formed on the lower side of the sub-pixel D without providing the light reflecting film 64. The light shielding film 68 is provided in a region indicated by oblique lines in FIG. This region is a boundary between the adjacent sub-pixels D and between the light reflection films 64 adjacent to each other. That is, it is a region between the reflective display regions R adjacent to each other. Thus, if the light shielding film 68 is provided at a position corresponding to the reflective display region R, the transmitted light L1 (see FIG. 2) from the illumination device 3 (see FIG. 1) is prevented from leaking into the reflective display region R. it can.

  On the other hand, as shown in FIG. 7B, which is a cross section of the transmissive display area T, that is, a cross section according to the Z6-Z6 line of FIG. 6, a light shielding film is provided between the transmissive display areas T adjacent to each other. Not. As a result, the aperture ratio of the transmissive display region T can be increased, so that brighter transmissive display can be performed.

  In the embodiment of FIG. 6, the light shielding film 68 is provided only between the light reflecting films 64 adjacent to each other, that is, between the reflective display regions R adjacent to each other. However, the light shielding film 68 can also be provided continuously between the transmissive display regions T adjacent to each other, that is, over the region where the light reflecting film 64 is not provided. In this case, between the transmissive display regions T adjacent to each other, the width of the light shielding film 68 is narrow, specifically, by forming the width to be the same as or narrower than the opposing light shielding film 42 on the color filter substrate 8. The aperture ratio in the transmissive display region T can be kept high.

(Other Embodiments Regarding Electro-Optical Device)
The electro-optical device according to the present invention has been described with reference to the preferred embodiments. However, the present invention is not limited to the embodiments, and various modifications can be made within the scope of the invention described in the claims. For example, in the embodiment shown in FIG. 5, the recesses 51 in the second resin film 23 are provided in a stripe shape in the column direction Y. However, the recess 51 can also be provided in a lattice shape surrounding the sub-pixel D.

  In each of the above embodiments, the present invention is applied to an electro-optical device using a TFD element that is a two-terminal switching element. However, the present invention is not limited to a three-terminal switching element such as a TFT element. It can also be applied to the electro-optical device used. For example, the present invention can be applied to a liquid crystal display device using an amorphous silicon TFT element having a channel etch type or other structure. The present invention can also be applied to an active matrix liquid crystal display device using a TFT element other than an amorphous silicon TFT element, for example, a high-temperature polysilicon TFT element or a low-temperature polysilicon TFT element as a switching element.

  In each of the above embodiments, the present invention is applied to a liquid crystal display device that adopts an ECB liquid crystal mode. However, the present invention can be applied to, for example, an STN (Super Twisted Nematic) mode or a VA (Vertically Aligned) mode. It can also be applied to a liquid crystal display device adopting a liquid crystal mode such as a mode.

(First Embodiment of Electronic Device)
Hereinafter, an electronic device according to the present invention will be described with reference to embodiments. In addition, this embodiment shows an example of this invention and this invention is not limited to this embodiment.

  FIG. 8 shows an embodiment of an electronic apparatus according to the invention. The electronic device shown here includes a liquid crystal display device 101 and a control circuit 102 that controls the liquid crystal display device 101. The control circuit 102 includes a display information output source 105, a display information processing circuit 106, a power supply circuit 107, and a timing generator 108. The liquid crystal display device 101 includes a liquid crystal panel 103 and a drive circuit 104.

  The display information output source 105 includes a memory such as a RAM (Random Access Memory), a storage unit such as various disks, a tuning circuit that tunes and outputs a digital image signal, and various clock signals generated by the timing generator 108. The display information processing circuit 106 is supplied with display information such as a predetermined format image signal.

  Next, the display information processing circuit 106 includes a number of well-known circuits such as an amplification / inversion circuit, a rotation circuit, a gamma correction circuit, a clamp circuit, and the like, executes processing of input display information, and outputs an image signal. It is supplied to the drive circuit 104 together with the clock signal CLK. Here, the drive circuit 104 is a generic term for an inspection circuit and the like together with a scanning line drive circuit and a data line drive circuit. The power supply circuit 107 supplies a predetermined power supply voltage to each of the above components.

  The liquid crystal display device 101 can be configured using, for example, the liquid crystal display device 1 shown in FIG. The liquid crystal display device 1 of FIG. 1 includes a data line 19 between the substrate 7a and the first resin film 22 and a light shielding film 28 between the first resin film 22 and the second resin film 23 in FIG. I decided to provide it. That is, the data line 19 and the light shielding film 28 are provided on different planes with the first resin film 22 interposed therebetween. As a result, the data line 19 and the light shielding film 28 do not come into contact with each other to be electrically short-circuited, so that the width of the light shielding film 28 can be widened. As a result, light transmitted through the substrate 7a can be reliably shielded.

  Further, by providing two resin films of the first resin film 22 and the second resin film 23 on the substrate 7a, it is possible to provide a thick resin film with a uniform film thickness on the substrate 7a. And the parasitic capacitance between the pixel electrode 25 provided on the resin film can be reduced. Therefore, also in the electronic apparatus of this embodiment using this liquid crystal display device, it is possible to display light with high contrast by surely blocking the transmitted light in the area where the transmitted light should be blocked, and reducing the parasitic capacitance and crosstalk. A clear display without any problem can be achieved.

(Second Embodiment of Electronic Device)
FIG. 9 shows a mobile phone which is another embodiment of the electronic apparatus according to the present invention. A cellular phone 110 shown here includes a main body 111 and a display body 112 that can be opened and closed. A display device 113 configured by an electro-optical device such as a liquid crystal display device is disposed inside the display body portion 112, and various displays relating to telephone communication can be visually recognized on the display body portion 112 on the display screen 114. Operation buttons 115 are arranged on the main body 111.

  An antenna 116 is attached to one end of the display body 112 so as to be extendable and contractible. A speaker (not shown) is arranged inside the receiver unit 117 provided at the upper part of the display body unit 112. Further, a microphone (not shown) is built in the transmitter 118 provided at the lower end of the main body 111. A control unit for controlling the operation of the display device 113 is stored inside the main body unit 111 or the display body unit 112 as a part of the control unit that controls the entire mobile phone or separately from the control unit. The

  The display device 113 can be configured using, for example, the liquid crystal display device 1 shown in FIG. The liquid crystal display device 1 of FIG. 1 includes a data line 19 between the substrate 7a and the first resin film 22 and a light shielding film 28 between the first resin film 22 and the second resin film 23 in FIG. I decided to provide it. That is, the data line 19 and the light shielding film 28 are provided on different planes with the first resin film 22 interposed therebetween. As a result, the data line 19 and the light shielding film 28 do not come into contact with each other to be electrically short-circuited, so that the width of the light shielding film 28 can be widened. As a result, light transmitted through the substrate 7a can be reliably shielded.

  Further, by providing two resin films of the first resin film 22 and the second resin film 23 on the substrate 7a, it is possible to provide a thick resin film with a uniform film thickness on the substrate 7a. And the parasitic capacitance between the pixel electrode 25 provided on the resin film can be reduced. Therefore, also in the electronic apparatus of this embodiment using this liquid crystal display device, it is possible to display light with high contrast by surely blocking the transmitted light in the area where the transmitted light should be blocked, and reducing the parasitic capacitance and crosstalk. A clear display without any problem can be achieved.

  In addition to the above-described mobile phones and the like as electronic devices, personal computers, liquid crystal televisions, viewfinder type or monitor direct view type video tape recorders, car navigation devices, pagers, electronic notebooks, calculators, word processors, Examples include workstations, video phones, and POS terminals.

1 is a side cross-sectional view showing an embodiment of an electro-optical device according to the invention. Sectional drawing which expands and shows the part shown by the arrow Z1 in FIG. It is a figure which shows the structure of a subpixel vicinity, (a) is a top view shown according to arrow A of FIG. 2, (b) is sectional drawing according to the Z2-Z2 line | wire of (a). FIG. 10 is a plan view showing a main part of another embodiment of the electro-optical device according to the invention. Sectional drawing according to the Z4-Z4 line | wire of FIG. FIG. 10 is a plan view showing a main part of still another embodiment of the electro-optical device according to the invention. (A) is sectional drawing according to the Z5-Z5 line of FIG. 5, (b) is sectional drawing according to the Z6-Z6 line of FIG. 1 is a block diagram illustrating an embodiment of an electronic apparatus according to the invention. The perspective view which shows the mobile telephone which is other Embodiment of the electronic device which concerns on this invention.

Explanation of symbols

1. 1. liquid crystal display device (electro-optical device), 2. Liquid crystal panel Lighting equipment,
6). 6. sealing material Element substrate, 7a. 7. a first translucent substrate; Color filter substrate,
8a. Second translucent substrate, 12. Liquid crystal layer, 13. LED, 14. Light guide,
14a. Light incident surface, 14b. Light exit surface, 16. Light reflecting layer, 17. Light diffusion layer,
18a, 18b. Polarizing plate, 19. 20. Data line (conductive film) TFD element,
22. First resin film, 23. Second resin film 24,64. Light reflecting film, 25. Pixel electrodes,
26a, 26b. Alignment film, 27. Contact hole 28,68. Light shielding film,
31a. First TFD element, 31b. Second TFD element, 32. A first element electrode;
33. Insulating films 34a, 34b. Second element electrode, 41. Colored film,
42. Opposing light shielding film, 43. Overcoat film, 44. Strip electrode, 45. Overhang,
50. Driving IC, 51. Recess, 52. First light-shielding film, 53. A second light shielding film,
101. Liquid crystal display device (electro-optical device), 102. Control circuit, 103. LCD panel,
104. Drive circuit, 110. Mobile phone (electronic device), 111. Body part,
112. Display body part, 113. Display device, 114. Display screen; Sub-pixel,
G. Cell gap, L0, L1. Light, R.A. Reflective display area, T.I. Transparent display area,
V. Indicated Area

Claims (9)

  A substrate that supports an electro-optical material, a first resin film provided between the substrate and the electro-optical material, and a second resin film provided between the first resin film and the electro-optical material And an electroconductive film provided between the substrate and the first resin film, and a light shielding film provided between the first resin film and the second resin film. apparatus.   The electro-optical device according to claim 1, wherein a plurality of subpixels are provided side by side on the substrate, a light reflecting film is provided in a region of each of the subpixels, and the light shielding film is adjacent to the subpixels. An electro-optical device, which is provided in a region between the light reflection films adjacent to each other at a boundary between pixels. In the electro-optical device according to claim 1 or 2, when a width of the light shielding film is a and a width of a region between the light reflecting films adjacent to each other is b,
a> b
An electro-optical device characterized by the above.   A substrate that supports an electro-optic material, a first resin film provided between the substrate and the electro-optic material, and a second resin film provided between the first resin film and the electro-optic material And a recess provided in the second resin film, a conductive film provided between the substrate and the first resin film, and the recess between the substrate and the first resin film. A first light-shielding film provided oppositely, and a second light-shielding film provided between the first resin film and the second resin film and adjacent to both side surfaces of the recess. Electro-optical device characterized.   5. The electro-optical device according to claim 4, wherein a plurality of sub-pixels are provided in a plane on the substrate, and the concave portion is provided in a groove shape along a boundary between the adjacent sub-pixels. An electro-optical device.   6. The electro-optical device according to claim 5, wherein a light reflecting film is provided in a region of each of the sub-pixels, and the concave portion is provided in a region between the light reflecting films adjacent to each other, and the first light shielding film. 2. The electro-optical device according to claim 1, wherein a film is provided in a region between the light reflection films adjacent to each other, and the second light shielding film is provided on both sides of the recess and adjacent to a side surface of the recess. In the electro-optical device according to any one of claims 4 to 6, when the width of the first light shielding film is c and the interval between the second light shielding films adjacent to each other is d,
c ≧ d
An electro-optical device characterized by the above. 8. The electro-optical device according to claim 4, wherein a width of a region shielded by the first light shielding film and the second light shielding film is e, and the light reflecting films adjacent to each other are arranged. When the width of the region between is f,
e> f
An electro-optical device characterized by the above. An electronic apparatus comprising the electro-optical device according to claim 1.

Images