JP2009063956A - Electro-optical device and electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem of the conventional display device, wherein it is difficult to expand a suitable range for viewing. <P>SOLUTION: This electro-optical device includes: a pair of substrates 21, 23 opposite to each other; and liquid crystal 25, which is interposed to be held between the paired substrates 21, 23 by the paired substrates 21, 23 and driven by each pixel of a plurality of pixels at least including a first pixel forming a first image and a second pixel forming a second image, wherein a plurality of light emitting parts 27 emitting light going toward a first direction through the first pixel and light going toward in a second direction through the second pixel are provided at spaces from each other between one of the paired substrates 21, 23 and the liquid crystal 25. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an electro-optical device and an electronic apparatus.

  2. Description of the Related Art Conventionally, as one electro-optical device, a display device that can display a different image for each viewing direction (hereinafter referred to as directional display) when viewed from a plurality of directions is known. As such a display device, there is a display device that can display different images at each of a plurality of viewpoints through a barrier having an opening and a light shielding portion (see, for example, Patent Document 1).

Japanese Patent No. 3096613 (page 2, FIG. 21)

  Here, a mechanism for performing directional display in two directions on a display device having a display panel for forming an image and the above-described barrier will be described with reference to cross-sectional views. As shown in FIG. 31A, the display panel 600 includes a first pixel 601 that displays a first image and a second pixel 603 that displays a second image. An opening 607 is provided in a region overlapping the first pixel 601 and the second pixel 603 in the barrier 605 that is overlaid on the display panel 600. A light shielding part 609 is located between the adjacent openings 607. Light from the lighting device 610 is incident on the first pixel 601 and the second pixel 603 through the opening 607 of the barrier 605.

  The light that enters the first pixel 601 through the opening 607 reaches the first range 611. In addition, light incident on the second pixel 603 through the opening 607 reaches the second range 613. That is, the first image can be viewed from the viewpoint within the first range 611, and the second image can be viewed from the viewpoint within the second range 613. Note that the first range 611 and the second range 613 have a range 615 that overlaps each other. From the viewpoint within the range 615, the first image and the second image are visually recognized in a superimposed state.

From the viewpoint within the range 619a excluding the range 615 from the first range 611, only the first image can be viewed. Similarly, only the second image can be viewed from the viewpoint within the range 619b excluding the range 615 from the second range 613. The range 619a and the range 619b are referred to as an appropriate viewing range 619a and an appropriate viewing range 619b, respectively.
Here, the appropriate viewing range 619a and the appropriate viewing range 619b can be enlarged by reducing the distance t between the display panel 600 and the barrier 605, as shown in FIG.

By the way, in many cases, a display panel on which barriers are superimposed has a configuration in which a display element is interposed between a pair of glass substrates. In order to expand the viewing range with such a configuration, the glass substrate on the side where the barriers are superimposed must be thinned. However, reducing the thickness of the glass substrate leads to many adverse effects such as a decrease in yield, an increase in manufacturing time, and a decrease in quality due to a decrease in substrate strength.
That is, the conventional display device has an unsolved problem that it is difficult to expand the appropriate viewing range.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  Application Example 1 A first pixel and a second image that form a first image by interposing a pair of substrates facing each other and the pair of substrates while being held by the pair of substrates. Liquid crystal driven for each of a plurality of pixels including at least a second pixel to be formed, and between the one of the pair of substrates and the liquid crystal, A plurality of light-emitting portions that emit light traveling in the first direction through the pixel and light traveling in the second direction through the second pixel are provided in a state of being spaced apart from each other in plan view; Electro-optical device characterized.

  The electro-optical device according to Application Example 1 includes a pair of substrates, a liquid crystal interposed between the pair of substrates, and a plurality of light emitting units. The liquid crystal is held by a pair of substrates and is driven for each of a plurality of pixels. The plurality of pixels include at least a first pixel and a second pixel. The plurality of light emitting units are provided in a state of being spaced from each other in plan view. Each light emitting unit emits light traveling in the first direction through the first pixel and light traveling in the second direction through the second pixel. Thereby, the first image formed by the first pixel can be visually recognized from the first direction, and the second image formed by the second pixel can be visually recognized from the second direction. In other words, the electro-optical device according to Application Example 1 can perform directional display in at least two directions.

  Here, the plurality of light emitting units are provided between one of the pair of substrates and the liquid crystal. In other words, the plurality of light emitting units are interposed between the pair of substrates. For this reason, compared with the case where a some light emission part is arrange | positioned on the outer side of a pair of board | substrate, the distance between a some pixel and a some light emission part can be shortened. Therefore, in the electro-optical device according to Application Example 1, it is possible to expand the appropriate viewing range in each direction in which directivity display is performed.

  Application Example 2 In the electro-optical device described above, a polarizing element that defines a polarization state of light from each of the light emitting units is interposed between the plurality of light emitting units and the liquid crystal. Electro-optic device.

  In Application Example 2, since a polarizing element that defines the polarization state of light from each light emitting unit is interposed between the plurality of light emitting units and the liquid crystal, an image can be formed using polarized light. .

  Application Example 3 The electro-optical device according to the above-described electro-optical device, wherein a light-shielding film that covers the light-emitting portions is provided in a plan view.

  In Application Example 3, since a light-shielding film that covers a plurality of light emitting units in a plan view is provided, light traffic between the light emitting units is blocked. Thereby, it is possible to suppress the light from each light emitting unit from leaking in the first direction through the second pixel or leaking in the second direction through the first pixel. Therefore, the contrast of each image in the directional display can be improved.

  Application Example 4 In the above electro-optical device, the plurality of light emitting units are provided with the light-shielding film on the liquid crystal side of a light emitting layer provided in a state of being arranged in a series between at least two adjacent light emitting units. An electro-optical device characterized by being provided.

  In Application Example 4, the plurality of light emitting units is configured by providing a light shielding film on the liquid crystal side of the light emitting layer provided in a state of being arranged in a series between at least two adjacent light emitting units. Compared with the case where a plurality of light emitting units are individually provided, the light emitting layers can be provided in a series of states, so that the manufacturing efficiency of the electro-optical device can be improved.

  Application Example 5 In the electro-optical device described above, a reflective film is provided between the one substrate and the plurality of light emitting units at least in a region overlapping each of the plurality of light emitting units in plan view. An electro-optical device.

  In Application Example 5, the reflective film is provided between the one substrate and the plurality of light emitting units in a region that overlaps at least each of the plurality of light emitting units in plan view. Light can be reflected to the liquid crystal side. Thereby, at least a part of the reflected light reflected on the liquid crystal side can be utilized for displaying an image, and the utilization efficiency of light from the light emitting unit can be improved.

  Application Example 6 In the electro-optical device described above, a reflection film is provided between the one substrate and the light emitting layer over a region overlapping the light emitting layer in plan view. Optical device.

  In Application Example 6, since the reflective film is provided between the one substrate and the light emitting layer over the region overlapping the light emitting layer in plan view, the light traveling from the entire region of the light emitting layer toward the one substrate is reflected to the liquid crystal side. Can be made. Thereby, at least a part of the reflected light reflected on the liquid crystal side can be utilized for displaying an image, and the utilization efficiency of light from the light emitting unit can be improved.

  Application Example 7 In the electro-optical device described above, a reflective film is provided between the light emitting layer and the light shielding film in a region where the light emitting layer and the light shielding film overlap in a plan view. Electro-optical device characterized.

  In Application Example 7, since the reflective film is provided between the light-emitting layer and the light-shielding film in a region where the light-emitting layer and the light-shielding film overlap in a plan view, light directed from the light-emitting layer to the light-shielding film is transmitted to one substrate side. Can be reflected. Thereby, at least a part of the reflected light reflected on the one substrate side can be used for displaying an image, and the utilization efficiency of light from the light emitting layer can be further improved.

  Application Example 8 A plurality of first pixels and a second pixel forming a first image that are interposed between a pair of substrates facing each other and the pair of substrates while being held by the pair of substrates. A liquid crystal driven for each of a plurality of pixels including a plurality of second pixels forming an image, and provided between the one of the pair of substrates and the liquid crystal; A plurality of light emitting units that emit light that travels in the first direction through the pixels and light that travels in the second direction through the second pixels, and the plurality of first pixels and the plurality of light emitting units. Each of the second pixels can transmit a red pixel that can transmit light having a red color, a green pixel that can transmit light having a green color, and a light having a blue color. A plurality of light emitting units, and the plurality of light emitting units emit red light that emits red light. And a green light emitting part that emits the light exhibiting a green color and a blue light emitting part that emits the light exhibiting a blue color are arranged in plan view. Optical device.

  The electro-optical device according to the application example 8 includes a pair of substrates, a liquid crystal interposed between the pair of substrates, and a plurality of light emitting units. The liquid crystal is held by a pair of substrates and is driven for each of a plurality of pixels. The plurality of pixels include a plurality of first pixels and a plurality of second pixels. The plurality of first pixels and the plurality of second pixels are respectively a red pixel capable of transmitting light exhibiting a red color, a green pixel capable of transmitting light exhibiting a green color, and blue A blue pixel capable of transmitting light having a system color. The plurality of light emitting units include a red light emitting unit that emits light exhibiting a red color, a green light emitting unit that emits light exhibiting a green color, and a blue light emitting that emits light exhibiting a blue color. Are arranged in plan view.

  In each of the plurality of first pixels and the plurality of second pixels, light from the red light emitting unit is visually recognized from each red pixel, and light from the green light emitting unit is viewed from each green pixel. The light from the blue light-emitting portion can be visually recognized from each blue-based pixel. As a result, each of the first image formed by the plurality of first pixels and the second image formed by the plurality of second pixels has at least light exhibiting a red color and green color. It can be composed of light presenting and light exhibiting a blue color. Accordingly, the first image formed by the first pixels is visually recognized as a color image from the first direction, and the second image formed by the second pixels is colored from the second direction. It can be visually recognized as an image. That is, in the electro-optical device according to the application example 8, directional display can be performed in at least two directions, and the directional display can be colored.

  Here, the plurality of light emitting units are provided between one of the pair of substrates and the liquid crystal. In other words, the plurality of light emitting units are interposed between the pair of substrates. For this reason, compared with the case where a some light emission part is arrange | positioned on the outer side of a pair of board | substrate, the distance between a some pixel and a some light emission part can be shortened. Therefore, in the electro-optical device according to the application example 8, it is possible to expand the appropriate viewing range in each direction in which directivity display is performed.

  Application Example 9 In the electro-optical device described above, a reflective film is provided in a region overlapping the plurality of pixels in a plan view between the other substrate of the pair of substrates and the liquid crystal. An electro-optical device.

  In Application Example 9, since a reflective film is provided in a region overlapping the plurality of pixels in plan view between the other substrate of the pair of substrates and the liquid crystal, light transmitted through the liquid crystal from the plurality of light emitting units Is reflected to the one substrate side by the reflective film. Of the light that has passed through the liquid crystal, the light that has reached the reflective film through the first pixel is reflected by the reflective film toward the one substrate side, and again travels in the first direction through the first pixel. In addition, the light that has reached the reflection film through the second pixel is reflected by the reflection film to the one substrate side, and travels again in the second direction through the second pixel. Thereby, the first image can be visually recognized through the one substrate from the first direction, and the second image can be visually recognized through the one substrate from the second direction. That is, in the electro-optical device according to Application Example 9, directivity display can be performed in at least two directions on one substrate side.

  Application Example 10 In the above electro-optical device, a light-shielding film that covers each of the plurality of light emitting units in a plan view is provided between the one substrate and the plurality of light emitting units. Electro-optical device characterized.

  In Application Example 10, since a light-shielding film that covers each of the plurality of light emitting units in a plan view is provided between the one substrate and the plurality of light emitting units, light traveling from the plurality of light emitting units to the one substrate is transmitted. Blocked. Thereby, it is possible to suppress the leakage of light from the plurality of light emitting units to one of the substrates. Therefore, the contrast of each image in the directional display can be improved.

  Application Example 11 In the electro-optical device described above, the plurality of light-emitting portions are configured by electroluminescent elements.

  Application Example 12 In the electro-optical device described above, a resin layer is interposed between the plurality of light emitting units and the liquid crystal.

  In Application Example 12, a resin layer is interposed between the plurality of light emitting units and the liquid crystal. In the resin layer, the thickness can be easily adjusted as compared with, for example, a glass substrate. Therefore, in the electro-optical device according to Application Example 12, the viewing range can be easily adjusted by adjusting the thickness of the resin layer.

  Application Example 13 A pair of substrates facing each other, and a liquid crystal that is interposed between the pair of substrates while being held by the pair of substrates and is driven for each pixel of a plurality of pixels. An electro-optical device, wherein a light emitting unit that emits light to be incident on the plurality of pixels is provided between one of the pair of substrates and the liquid crystal.

  The electro-optical device according to the application example 13 includes a pair of substrates, a liquid crystal interposed between the pair of substrates, and a plurality of light emitting units. The liquid crystal is held by a pair of substrates and is driven for each of a plurality of pixels. The light-emitting portion that emits light incident on the plurality of pixels is provided between one of the pair of substrates and the liquid crystal. For this reason, compared with the case where a light emission part is arrange | positioned outside a pair of board | substrates, the distance between a some pixel and a light emission part can be shortened. Therefore, in application example 13, the electro-optical device can be thinned.

  Application Example 14 Electronic equipment comprising the electro-optical device described above as a display unit.

  In an electronic device according to Application Example 14, an electro-optical device as a display unit includes a pair of substrates, a liquid crystal interposed between the pair of substrates and held by the pair of substrates, and one of the pair of substrates. And a light emitting portion provided between the liquid crystal and the liquid crystal. In this electro-optical device, since the light emitting portion is provided between one of the pair of substrates and the liquid crystal, the plurality of pixels and the light emitting portion are compared with the case where the light emitting portion is disposed outside the pair of substrates. The distance between the light emitting units can be shortened. Thereby, the electro-optical device can be thinned. The electronic device according to the application example 14 includes the electro-optical device that is reduced in thickness as the display unit, and thus can be reduced in thickness.

  Embodiments will be described with reference to the drawings, taking a display device that is one of electro-optical devices as an example.

  In the display device 1 according to the first embodiment, a plurality of pixels 3 are set as shown in FIG. The plurality of pixels 3 are arranged in the X direction and Y direction in the drawing within the display area 5, and constitute a matrix M in which the X direction is the row direction and the Y direction is the column direction. The display device 1 can display an image on the display surface 7 by selectively emitting light from a built-in light emitting unit from the plurality of pixels 3 to the outside of the display device 1 through the display surface 7. . The display area 5 is an area where an image can be displayed. In FIG. 1, the pixels 3 are exaggerated and the number of the pixels 3 is reduced for easy understanding of the configuration.

The display device 1 includes a liquid crystal panel 11 and a polarizing plate 15 as shown in FIG. 2 which is a cross-sectional view taken along the line AA in FIG.
The liquid crystal panel 11 includes a light emitting element substrate 21, a drive element substrate 23, and a liquid crystal 25.
The light emitting element substrate 21 is provided with a plurality of light emitting portions 27 and the like on the display surface 7 side, that is, the liquid crystal 25 side. In FIG. 2, each configuration is exaggerated and the number of the light emitting units 27 is reduced for easy understanding of the configuration.

  The driving element substrate 23 faces the light emitting element substrate 21 on the display surface 7 side with respect to the light emitting element substrate 21 and is provided with a gap between the light emitting element substrate 21. The drive element substrate 23 is provided with a switching element, which will be described later, corresponding to each of the plurality of pixels 3 on the bottom surface 35 side, that is, the liquid crystal 25 side, which corresponds to the back surface of the display surface 7 in the display device 1. ing.

  The liquid crystal 25 is interposed between the light emitting element substrate 21 and the driving element substrate 23, and is sealed between the light emitting element substrate 21 and the driving element substrate 23 by a sealing material 37 that surrounds the display region 5 inside the periphery of the display device 1. It is sealed in between. That is, the liquid crystal 25 is interposed between the light emitting element substrate 21 and the driving element substrate 23 while being held by the light emitting element substrate 21 and the driving element substrate 23. In the display device 1, a TN (Twisted Nematic) type is adopted as the liquid crystal 25.

The polarizing plate 15 is provided closer to the display surface 7 than the drive element substrate 23. The polarizing plate 15 can transmit light having a polarization axis in the direction of the transmission axis.
Each of the plurality of pixels 3 set in the display device 1 has a red color (R), a green color (G), and a blue color (B) as shown in FIG. ). In other words, the plurality of pixels 3 constituting the matrix M include a pixel 3r that emits R light, a pixel 3g that emits G light, and a pixel 3b that emits B light.

  Here, the color of R is not limited to a pure red hue, and includes orange and the like. The color of G is not limited to a pure green hue, and includes blue-green and yellow-green. The color of B is not limited to a pure blue hue, and includes bluish purple and blue-green. From another viewpoint, light exhibiting the color of R can be defined as light having a light wavelength peak in a range of 570 nm or more in the visible light region. The light exhibiting the color G can be defined as light having a light wavelength peak in the range of 500 nm to 565 nm. Light exhibiting the color B can be defined as light having a light wavelength peak in the range of 415 nm to 495 nm.

  In the matrix M, a plurality of pixels 3 arranged along the Y direction form one pixel column 41. Each pixel 3 in one pixel column 41 has a light color set to one of R, G, and B. That is, the matrix M includes a pixel column 41r in which a plurality of pixels 3r are arranged in the Y direction, a pixel column 41g in which a plurality of pixels 3g are arranged in the Y direction, and a pixel column 41b in which a plurality of pixels 3b are arranged in the Y direction. have. In the matrix M, the pixel column 41r, the pixel column 41g, and the pixel column 41b are arranged repeatedly in this order along the X direction.

In the display device 1, the plurality of pixels 3 constituting the matrix M are divided into a plurality of first pixels 3 ₁ and a plurality of second pixels 3 ₂ as shown in FIG. 4. Display device 1, light from a plurality of light emitting portions 27, by injection to the outside of the display device 1 via a selectively display surface 7 a plurality of first pixel 3 _1, first the display surface 7 Images can be displayed. The display device 1, light from a plurality of light emitting portions 27, by injection to the outside of the display device 1 via a selectively display surface 7 a plurality of second pixel 3 _2, the display surface 7 A second image can be displayed.

It should be noted that the first image and the second image may be different from each other or the same image. In the following, the notation of the pixel 3, the notations of the pixels 3r, 3g, and 3b and the notation of the first pixel 3 ₁ and the second pixel 3 ₂ are appropriately used. When R, G, and B are identified for the first pixel 3 ₁ and the second pixel 3 ₂ , respectively, the first pixel 3r ₁ , 3g _1, 3b ₁ , and the second pixel The notations 3r ₂ , 3g ₂ and 3b ₂ are used.

In the display device 1, the first pixels 3 ₁ and the second pixels 3 ₂ are alternately arranged in the X direction. One pixel column 41 includes a plurality of first pixels 3 ₁ or a plurality of second pixels 3 ₂ . In other words, the matrix M includes pixel 3 of _the plurality of first is the pixel column 41 ₁ which is arranged along the Y direction, ₂ a plurality of second pixels 3 of the pixel columns 41 ₂ which are arranged along the Y direction Have. In the following, the notation of the pixel column 41, the notation of the pixel column 41r, the pixel column 41g, and the pixel column 41b, and the notation of the pixel column 41 ₁ and the pixel column 41 ₂ are appropriately used.

In the display device 1, the plurality of pixels 3 constituting the matrix M are divided into two pixels 3, each of the two pixels 3, that is, the first pixel 3 ₁ and the second pixel 3 ₂ adjacent in the X direction. Are divided into a plurality of sets of pixel groups 43. The arrangement order of the first pixel 3 ₁ and the second pixel 3 ₂ in each pixel group 43 is unified among a plurality of sets of pixel groups 43. In the display device 1, the first pixel 3 ₁ and the second pixel 3 ₂ are arranged in this order from the left side to the right side in the X direction as viewed in FIG. As long as the order of arrangement of the first pixel 3 ₁ and the second pixel 3 ₂ is uniform among the plurality of sets of pixel groups 43, either may be on the left side or on the right side.
In the matrix M, a plurality of sets of pixel groups 43 are arranged along the X direction and the Y direction, as shown in FIG. That is, the plurality of sets of pixel groups 43 are arranged in a matrix.

Here, the configuration of each of the light emitting element substrate 21 and the drive element substrate 23 will be described in detail.
The light emitting element substrate 21 includes a first substrate 51 as shown in FIG. 6 which is a cross-sectional view taken along the line CC in FIG. The first substrate 51 is made of a light-transmitting material such as glass, and has a first surface 53 directed toward the display surface 7 side. Note that the surface of the first substrate 51 opposite to the first surface 53 corresponds to the bottom surface 35.

  A reflective film 55 is provided on the first surface 53 of the first substrate 51. The plurality of light emitting units 27 are provided on the display surface 7 side of the reflective film 55. Each light emitting section 27 has a configuration in which a light emitting layer 59 is sandwiched between a pair of electrodes 57a and 57b facing each other. Each of the electrodes 57a and 57b is made of a light-transmitting material such as an oxide conductive film such as ITO (Indium Tin Oxide), or a metal such as MgAg that is thinned so as to be light-transmitting. Yes. Each light emitting layer 59 is made of an organic material, and emits white light when a voltage is applied between the electrodes 57a and 57b. Each light emission part 27 comprises the organic EL (Electro Luminescence) element.

  The light emitting layer emitting white light includes a light emitting layer emitting light exhibiting a red color, a light emitting layer emitting light exhibiting a green color, and a light emitting layer emitting light exhibiting a blue color. The structure which laminated | stacked these, the structure which added the pigment | dye of each color to one light emitting layer, etc. may be employ | adopted. Further, as a combination of colors, there are a method using two wavelength components having a complementary color relationship of blue and orange or blue-green and red, in addition to a method using three wavelength components of red, green and blue.

  A protective film 61 is provided on the display surface 7 side of the electrode 57b. The protective film 61 is made of a light transmissive material such as SiO or SiN. A polarizer 63 is provided on the display surface 7 side of the protective film 61.

  In the display device 1, a wire grid structure is adopted as the polarizer 63. As shown in FIG. 7 which is a perspective view of the polarizer 63 from the bottom surface 35 side, the wire grid structure has a large number of wires 65 arranged in parallel with each other at a predetermined interval H. The interval H is set to a value shorter than the wavelength of light. Of the light 67 incident on the polarizer 63, a component 67a having a polarization axis in the direction in which the wire 65 extends is reflected, and a component 67b having a polarization axis perpendicular to the direction in which the wire 65 extends is transmitted. In addition, as a material of the wire 65, gold, silver, aluminum, etc. with high light reflectivity may be employ | adopted, for example.

As shown in FIG. 6, a protective film 71 is provided on the display surface 7 side of the polarizer 63. The protective film 71 is made of a light transmissive material such as SiO or SiN.
A resin layer 73 is provided on the display surface 7 side of the protective film 71. The resin layer 73 is made of a light-transmitting resin, and is formed by attaching a sheet-like resin, or by placing a liquid resin in a film shape by a spin coat method or the like and then solidifying it. obtain.
On the display surface 7 side of the resin layer 73, a light absorption layer 75 that partitions each pixel 3 is provided over the region 76. In the display device 1, each pixel 3 can be defined as a region surrounded by the light absorption layer 75. The light absorption layer 75 is made of a light-absorbing material, and is provided on the display surface 7 side of the resin layer 73 in a lattice shape in plan view.

On the display surface 7 side of the resin layer 73, a color filter 77 that covers each region surrounded by the light absorption layer 75, that is, the region of each pixel 3, from the display surface 7 side is provided.
Here, the color filter 77 can transmit light in a predetermined wavelength region of incident light. The color filter 77 is composed of a resin colored in a different color for each of the pixels 3r, 3g, and 3b. The color filter 77 corresponding to the pixel 3r can transmit R light. The color filter 77 corresponding to the pixel 3g can transmit G light, and the color filter 77 corresponding to the pixel 3b can transmit B light.

On the display surface 7 side of the light absorption layer 75 and the color filter 77, an overcoat layer 79 is provided. The overcoat layer 79 is made of a light-transmitting resin or the like, and covers the light absorption layer 75 and the color filter 77 from the display surface 7 side.
A counter electrode 81 is provided on the display surface 7 side of the overcoat layer 79. The counter electrode 81 is made of a light transmissive material such as ITO. The counter electrode 81 is connected to a common line (not shown).
An alignment film 83 is provided on the display surface 7 side of the counter electrode 81. The alignment film 83 is made of a light transmissive material such as polyimide, and covers the counter electrode 81 from the display surface 7 side. The alignment film 83 is subjected to an alignment process.

The drive element substrate 23 has a second substrate 85. The second substrate 85 is made of a light-transmitting material such as glass, and has an outward surface 86a directed to the display surface 7 side and an element surface 86b directed to the bottom surface 35 side. Yes.
A gate insulating layer 87 is provided on the element surface 86 b of the second substrate 85. An insulating layer 89 is provided on the bottom surface 35 side of the gate insulating layer 87. An alignment film 91 is provided on the bottom surface 35 side of the insulating layer 89.

In addition, on the drive element substrate 23, a TFT (Thin Film Transistor) element 93 that is one of the switching elements and a pixel electrode 95 corresponding to each pixel 3 are provided on the element surface 86 b side of the second substrate 85. Is provided.
The TFT element 93 includes a gate electrode 101, a semiconductor layer 103, a source electrode 105, and a drain electrode 107.

The gate electrode 101 is provided on the element surface 86 b of the second substrate 85, and is covered with the gate insulating layer 87 from the bottom surface 35 side. As the material of the gate insulating layer 87, for example, a light transmissive material such as SiO or SiN can be adopted.
The semiconductor layer 103 is made of, for example, amorphous silicon, and is provided at a position facing the gate electrode 101 with the gate insulating layer 87 interposed therebetween. The semiconductor layer 103 is provided with a source region and a drain region (not shown).

The source electrode 105 is provided on the bottom surface 35 side of the gate insulating layer 87 and partly overlaps the source region of the semiconductor layer 103.
The drain electrode 107 is provided on the bottom surface 35 side of the gate insulating layer 87 and partly overlaps the drain region of the semiconductor layer 103.

  In the display device 1, the TFT element 93 having the above configuration is provided in the left region 76 as viewed in FIG. 6, and the drain electrode 107 extends from the region 76 to the region of the pixel 3. Between the pixels 3 adjacent in the X direction, the gate electrodes 101 are connected by a gate line (not shown). Further, between the pixels 3 adjacent in the Y direction, the source electrodes 105 are connected by a data line (not shown).

The TFT element 93 is covered with an insulating layer 89 from the bottom surface 35 side. As the material of the insulating layer 89, for example, a light transmissive material such as SiO, SiN, or acrylic resin can be employed.
The pixel electrode 95 is made of a light-transmitting material such as ITO (Indium Tin Oxide), and is provided on the bottom surface 35 side of the insulating layer 89. The pixel electrode 95 is connected to the drain electrode 107 through a contact hole 109 provided in the insulating layer 89.
The alignment film 91 is made of a light-transmitting material such as polyimide, and covers the insulating layer 89 and the pixel electrode 95 from the bottom surface 35 side. The alignment film 91 is subjected to an alignment process.

  The liquid crystal 25 interposed between the light emitting element substrate 21 and the driving element substrate 23 is interposed between the alignment film 83 and the alignment film 91. In the display device 1, the sealing material 37 shown in FIG. 2 is sandwiched between the first surface 53 of the first substrate 51 and the element surface 86b of the second substrate 85 shown in FIG. That is, in the display device 1, the liquid crystal 25 is held by the first substrate 51 and the second substrate 85. Note that the sealing material 37 may be provided between the alignment film 83 and the alignment film 91. In this case, the liquid crystal 25 can be regarded as being held on the light emitting element substrate 21 and the driving element substrate 23.

The pair of electrodes 57a and 57b constituting the light emitting unit 27 are provided in a series of states across a plurality of pixels 3, as shown in FIG. 8 which is a cross-sectional view taken along the line DD in FIG. . That is, the electrodes 57 a and 57 b are respectively provided between the plurality of light emitting units 27, and are shared by the plurality of light emitting units 27. When a voltage is applied between the electrodes 57a and 57b, light is emitted from the plurality of light emitting units 27.
The counter electrode 81 is provided in a state of being arranged in a series between the plurality of pixels 3 and functions in common between the plurality of pixels 3. Each pixel electrode 95 has a peripheral portion overlapping the region 76 in plan view.

Each light emitting unit 27 is provided corresponding to each pixel group 43 in the X direction, and is provided between the first pixel 3 ₁ and the second pixel 3 ₂ constituting the pixel group 43. A light shielding film 111 made of a light shielding material is provided between the light emitting portions 27 adjacent in the X direction.
Further, each light emitting unit 27 extends along the Y direction as shown in FIG. 9 which is a plan view of the light emitting unit 27 and the pixel group 43. That is, one light emitting unit 27 corresponds to a plurality of sets of pixel groups 43 arranged in the Y direction. In FIG. 9, each light emitting unit 27 is hatched for easy understanding of the configuration.

In the display device 1 having the above configuration, the display is controlled by changing the alignment state of the liquid crystal 25 in a state where each light emitting unit 27 emits light. The alignment state of the liquid crystal 25 is changed by switching between the OFF state and the ON state of the TFT element 93.
Here, the relationship between the direction of the transmission axis of the polarizing plate 15, the direction in which each wire 65 of the polarizer 63 extends, and the alignment directions of the alignment film 83 and the alignment film 91 will be described.

FIG. 10A is a diagram showing a polarization state when the TFT element 93 is in an OFF state, and FIG. 10B is a diagram showing a polarization state when the TFT element 93 is in an ON state.
In the display device 1, the direction 115 in which each wire 65 of the polarizer 63 extends is along the transmission axis direction 117 of the polarizing plate 15, as shown in FIGS. 10 (a) and 10 (b). The alignment direction 119 of the alignment film 83 is orthogonal to the direction 117 of the transmission axis. The alignment direction 121 of the alignment film 91 is along the transmission axis direction 117.
In FIGS. 10A and 10B, the X ′ direction and the Y ′ direction indicate the direction along the transmission axis direction 117 of the polarizing plate 15 and the Y ′ direction is the XY plane. The direction orthogonal to the X ′ direction is shown. The X ′ direction and the Y ′ direction are arbitrary two directions orthogonal to each other in the XY plane.

Incident light incident on the polarizer 63 from each light emitting section 27 is incident on the liquid crystal 25 as linearly polarized light 123 having a polarization axis along the direction orthogonal to the direction 115 in which the wire 65 extends, that is, the Y ′ direction.
When the TFT element 93 is in the OFF state, the linearly polarized light 123 incident on the liquid crystal 25 is linearly polarized light 125 having a polarization axis along the X ′ direction due to the optical rotation of the liquid crystal 25 as shown in FIG. Is emitted toward the polarizing plate 15. The linearly polarized light 125 emitted toward the polarizing plate 15 passes through the polarizing plate 15 because the direction of the polarization axis is along the direction 117 of the transmission axis of the polarizing plate 15.

On the other hand, when the TFT element 93 is in the ON state, as shown in FIG. 10B, the linearly polarized light 123 is emitted toward the polarizing plate 15 as the linearly polarized light 123 while maintaining the polarization state. The linearly polarized light 123 emitted toward the polarizing plate 15 is absorbed by the polarizing plate 15 because the direction of the polarization axis is orthogonal to the direction 117 of the transmission axis of the polarizing plate 15.
In the display device 1, a so-called normally white display in which light is emitted from the display surface 7 when the TFT element 93 is in an OFF state and light emission from the display surface 7 is blocked when the TFT element 93 is in an ON state. Mode is adopted.

Here, in the display device 1, as described above, the light emitting units 27 corresponding to the pixel groups 43 are provided in the X direction. As shown in FIG. 11, which is a cross-sectional view schematically showing a plurality of sets of pixel groups 43 and light emitting units 27, the light from each light emitting unit 27 constitutes a first pixel group 43 corresponding to the light emitting unit 27. The light is emitted from the display surface 7 through each of the pixel 3 ₁ and the second pixel 3 ₂ . At this time, the light 127a and 127b emitted from each of the first pixel 3 ₁ and the second pixel 3 ₂ includes the light 127a in the first range 131 and the light 127b in the second range 133. Note that the cross section shown in FIG. 11 corresponds to the cross section taken along line EE in FIG.

From the first range 131, the light 127a from the light emitting unit 27 can be visually recognized through the first pixel 3 ₁ . From the second range 133, the light 127b from the light emitting unit 27 can be visually recognized through the second pixel 3 ₂ . When an eye point within the first range 131, a first image formed by the light 127a from a plurality of first pixel 3 ₁ can be viewed. If there is a viewpoint in the second range 133, the second image formed by the light 127b from the plurality of second pixels 3 ₂ can be viewed. That is, the display device 1 performs so-called directional display in which the first image is displayed in the first range 131 and the second image is displayed in the second range 133 different from the first range 131. Can do.

  In the display device 1, the first range 131 and the second range 133 illustrated in FIG. From this range 135, the first image and the second image are visually recognized in a superimposed state. From the range 137a (hereinafter referred to as the appropriate viewing range 137a) excluding the range 135 from the first range 131, only the first image can be viewed. Further, only the second image can be visually recognized from the range 137b (hereinafter referred to as the appropriate viewing range 137b) obtained by excluding the range 135 from the second range 133.

Display device 1 has a plurality of first light 127a emitted from the pixel 3 ₁ intersect at both ends of the first range 131, a plurality of second light 127b emitted from the pixel 3 ₂ second Are configured to intersect at both ends of the range 133. This can be realized by setting the interval Pa between the light emitting units 27 adjacent in the X direction to be longer than the interval Pb between the pixel groups 43 adjacent in the X direction.
Thus, the amounts of lights viewed from any viewpoint within preferred viewing range 137a, can be made equal among the first pixels 3 _1. Similarly, the amounts of lights viewed from any viewpoint within preferred viewing range 137b, can be made equal among the second pixels 3 _2.

In the display device 1, the polarizer 63 corresponds to a polarizing element.
In the display device 1, a plurality of light emitting units 27 composed of organic EL elements are provided between the first substrate 51 and the second substrate 85 that hold the liquid crystal 25. For this reason, the distance between the plurality of pixels 3 and the light emitting unit 27 is compared with a display device that includes a lighting device and a display panel separately and performs display by irradiating light from the lighting device to the display panel. It can be shortened. Therefore, the display device 1 can be thinned.

  In the display device 1, the light emitting units 27 corresponding to the pixel groups 43 in the X direction are provided between the first substrate 51 and the second substrate 85 that hold the liquid crystal 25. For this reason, the distance between each pixel group 43 and the light emission part 27 is compared with the display apparatus which equips with an illuminating device and a display panel separately, and irradiates the light from an illuminating device to a display panel, and displays. It can be shortened. Therefore, the appropriate viewing range 137a and the appropriate viewing range 137b can be enlarged.

In the display device 1, since the polarizer 63 is provided between the light emitting units 27 and the liquid crystal 25, display can be performed using polarized light.
In the display device 1, the light shielding film 111 is provided between the light emitting units 27 adjacent in the X direction. For this reason, it is possible to keep light from the light emitting units 27 from leaking to the second range 133 via the first pixel 3 ₁ or leaking to the first range 131 via the second pixel 3 _2. Can do. Therefore, the contrast of each of the first image and the second image in the directional display can be improved.

  In the display device 1, the reflective film 55 is provided between the first substrate 51 and the plurality of light emitting units 27. For this reason, the light which goes to the bottom face 35 side from each light emission part 27 can be reflected to the display surface 7 side. Thereby, the reflected light reflected by the display surface 7 side can be utilized for image display, and the utilization efficiency of light from each light emitting unit 27 can be improved.

  In the display device 1, a resin layer 73 is provided between the light emitting units 27 and the liquid crystal 25. In the resin layer 73, the thickness can be easily adjusted as compared with glass or the like. Therefore, in the display device 1, it is possible to easily adjust the appropriate viewing range 137a and the appropriate viewing range 137b by adjusting the thickness of the resin layer 73.

In the display device 1, the color filter 77 is provided between the first substrate 51 and the second substrate 85, but the position of the color filter 77 is not limited to this.
Here, in the display device 1, the light 127a extending from the middle point in the X direction of each light-emitting section 27, a first range 131 through the midpoint of each of the plurality of first pixel 3 _1, shown in FIG. 12 In this way, they intersect at the viewpoint La within the appropriate viewing range 137a. Similarly, from the middle point in the X direction of each light-emitting section 27, the light 127b reaching the second range 133 through the midpoint of each of the plurality of second pixel 3 ₂ is a perspective Lb in preferred viewing range 137b Intersect.

When these focusing on the same color between light 127a and 127b, and the light 127a extending from pixels 3r ₁ in perspective La, the light 127b extending from the pixel 3r ₂ in perspective Lb, intersect at the intersection Kr. Similarly, the light 127a from the pixel 3g ₁ to the viewpoint La and the light 127b from the pixel 3g ₂ to the viewpoint Lb intersect at the intersection Kg, and the light 127a from the pixel 3b ₁ to the viewpoint La and the viewpoint from the pixel 3b ₂ Light 127b reaching Lb intersects at the intersection Kb. If the color filters 77 corresponding to the respective light colors are arranged at the intersections Kr, Kg, and Kb, the color filters 77 can be shared by the first pixel 3 ₁ and the second pixel 3 ₂ .

Therefore, an example in which the color filter 77 is shared by the first pixel 3 ₁ and the second pixel 3 ₂ will be described as a second embodiment.
The display device 10 according to the second embodiment includes a liquid crystal panel 11 and a polarizing plate, as shown in FIG. 13 which is a cross-sectional view when the display device 10 is cut at a position corresponding to the position of line AA in FIG. 15 is provided with a color filter substrate 141. The display device 10 has the same configuration as the display device 1 except that the light absorption layer 75, the color filter 77, and the overcoat layer 79 of the display device 1 are provided on the color filter substrate 141. ing. Therefore, in the following, the same components as those of the display device 1 among the components of the display device 10 are denoted by the same reference numerals, and detailed description thereof is omitted.

The color filter substrate 141 has a third substrate 143 as shown in FIG. 14 which is a cross-sectional view taken along the line CC in FIG. The third substrate 143 is made of a light-transmitting material such as glass, for example, and has an outward surface 144a directed to the display surface 7 side and an opposing surface 144b directed to the bottom surface 35 side. Yes.
The light absorption layer 75 is provided in a lattice shape on the opposing surface 144b of the third substrate 143 in plan view. In addition, a color filter 77 is provided on the facing surface 144b to cover each region surrounded by the light absorption layer 75 from the bottom surface 35 side.

In the color filter substrate 141 having the above-described configuration, the overcoat layer 79 is disposed on the outward surface 86a with the light-transmitting adhesive 145 in a state where the opposing surface 144b is directed to the outward surface 86a of the second substrate 85. Pasted.
A counter electrode 81 is provided on the display surface 7 side of the resin layer 73 of the light emitting element substrate 21.
In the display device 10, the thickness of the resin layer 73 and the second substrate 85 is set so that each color filter 77 is located at each intersection Kr, Kg, and Kb (see FIG. 12).

  In the display device 10, each region surrounded by the light absorption layer 75 is not defined as the region of the pixel 3. In the display device 10, the region of the pixel 3 is defined as a region where the counter electrode 81 and each pixel electrode 95 overlap in plan view. This is because each region surrounded by the light absorption layer 75 extends between two pixel electrodes 95 adjacent in the X direction, as shown in FIG. 15 which is a cross-sectional view taken along the line JJ in FIG. It is.

In the display device 10, not only the same effect as the display device 1 can be obtained, but also the first pixel 3 ₁ and the second pixel 3 ₂ can share the color filter 77. This can be reduced, and the size of one color filter 77 can be enlarged.

  In the display device 1 and the display device 10, a case where a plurality of independent light emitting layers 59 are provided for each light emitting unit 27 corresponding to each of the plurality of light emitting units 27 has been described as an example. The configuration of the unit 27 is not limited to this. For example, the configuration of the plurality of light emitting units 27 is a light emitting layer provided in a state in which the plurality of light emitting units 27 are arranged as shown in FIG. A configuration in which the light-shielding film 111 is provided on the display surface 7 side with respect to 147 may be employed. In this case, in the light emitting element 149 having a configuration in which the series of light emitting layers 147 are sandwiched between the series of pairs of electrodes 57 a and 57 b, the portions between the light shielding films 111 function as the light emitting units 27.

  In the case of the configuration shown in FIG. 16A, as shown in FIG. 16B, which is an enlarged view of the N portion in FIG. 16A, a reflective film 151 is provided between the electrode 57b and each light shielding film 111. Providing is preferable in that the utilization efficiency of light can be increased. Light 153 traveling from the light emitting layer 147 toward the light shielding film 111 is reflected by the reflective film 151 toward the bottom surface 35. The light 153 reflected to the bottom surface 35 side by the reflective film 151 is reflected to the display surface 7 side by the reflective film 55. Part of the light 153 reflected to the display surface 7 side by the reflective film 55 is incident on the liquid crystal 25 through the light shielding films 111 and can be used for display. For this reason, the utilization efficiency of light is improved.

In the display device 1 and the display device 10, the case where each of the plurality of light emitting units 27 emits white light has been described as an example. However, the light emitted from each light emitting unit 27 is not limited to white. For example, as shown in FIG. 17 which is a cross-sectional view illustrating another example of the light emitting unit 27, the plurality of light emitting units 27 includes a light emitting unit 27r that emits R light, a light emitting unit 27g that emits G light, and B A configuration having a light emitting portion 27b that emits the same light can be employed. In this case, the light emitting portion 27r is perspective La and the line R ₁ in which extended lines on the bottom 35 side connecting the pixel 3r _1, viewpoint Lb and line R ₂ of a line connecting between the pixel 3r ₂ was extended to the bottom surface 35 side Located at the intersection with. Emitting portion 27g is the intersection of a line G ₁ obtained by extending a line connecting between the viewpoint La and pixel 3 g ₁ on the bottom 35 side, and the line G ₂ that extends to the bottom surface 35 side a line connecting between the viewpoint Lb and pixel 3 g ₂ Located in. The light emitting unit 27b is an intersection of a line B ₁ extending a line connecting the viewpoint La and the pixel 3b ₁ to the bottom surface 35 side and a line B ₂ extending a line connecting the viewpoint Lb and the pixel 3b ₂ to the bottom surface 35 side. Located in.

  In the case of the display device 100 having the configuration shown in FIG. 17, the saturation of the R light from the light emitting unit 27 r is enhanced when it passes through the R color filter 77. On the other hand, the R light from the light emitting portion 27 r is absorbed by the G and B color filters 77. Similarly, the saturation of the G light is enhanced by the G color filter 77, and the saturation of the B light is enhanced by the B color filter 77. The G light is absorbed by the R and B color filters 77, and the B light is absorbed by the R and G color filters 77. Therefore, in the case of the display device 100 in which the configuration shown in FIG. 17 is adopted in the display device 1 or the display device 10, color display can be performed and saturation in the color display can be improved.

Further, in the display device 1 or the display device 10, it is limited to the case where the plurality of first pixels 3 ₁ form only the first image and the plurality of second pixels 3 ₂ form only the second image. Absent. In the display device 1 and the display device 10, the plurality of first pixels 3 ₁ alternately form the first image and the second image, and the plurality of second pixels 3 _{2 includes} the second image and the first image. It is possible to control to alternately form the images. In this case, for example, one frame period is divided into the first half and the second half, and the first image and the second image can be exchanged in the first half and the second half of the one frame period. That is, in the first half of one frame period, the first image is formed by the plurality of first pixels 3 ₁ and the second image is formed by the plurality of second pixels 3 ₂ . In the second half of one frame period, the second image is formed by the plurality of first pixels 3 ₁ , and the first image is formed by the plurality of second pixels 3 ₂ .

  However, in this case, in the configuration of the display device 1 or the display device 10, the first image and the second image are alternately displayed in the first range 131 and the second range 133 shown in FIG. Will end up. Therefore, a configuration in which a light emitting unit 155 is added as illustrated in FIG. 18 between the plurality of light emitting units 27 arranged in the X direction, that is, between the pixel groups 43 adjacent in the X direction may be employed. In the configuration shown in FIG. 18, since the light emitting unit 155 is added between the light emitting units 27, each light emitting unit 27 and the light emitting unit 155 are expressed as being provided between two pixels 3 adjacent in the X direction. Can be done. Driving of the light emitting unit 27 and the light emitting unit 155 is individually controlled. That is, the light emitting unit 155 is configured to control light emission independently of the light emitting unit 27. This can be realized by providing the electrodes 57a and 57b of the light emitting unit 27 and the electrodes 57a and 57b of the light emitting unit 155 in an independent state.

  The light emitting unit 27 and the light emitting unit 155 are light emitting elements in the first half of one frame period as shown in FIG. 19 which is a cross-sectional view schematically showing a plurality of pixel groups 43 and the light emitting unit 27 and the light emitting unit 155. Control is performed so that the unit 27 is turned on and the light emitting unit 155 is turned off. In the second half of one frame period, as shown in FIG. 20, the light emitting unit 27 and the light emitting unit 155 are controlled so that the light emitting unit 27 is turned off and the light emitting unit 155 is turned on. In FIGS. 19 and 20, the light emitting unit 27 and the light emitting unit 155 that are in the OFF state are painted out for easy understanding of the configuration.

In the display device 200 having a configuration in which a plurality of light emitting units 155 are added to the display device 1 or the display device 10, the first image in the first range 131 and the plurality of first pixels 3 ₁ within one frame period. They are formed alternately by a plurality of second pixel 3 _2. Similarly, in the second range 133, the second image is alternately formed by the plurality of _second pixels 3 ₂ and the plurality of first pixels 3 ₁ within one frame period. That is, an image formed by the plurality of pixels 3 constituting the matrix M can be visually recognized from each of the first range 131 and the second range 133 within one frame period. Therefore, in the display device 200, the resolution of an image to be formed is improved, and high-definition display can be realized.

Further, if the light shielding film 161 shown in FIG. 21 is added to the display surface 7 side of the plurality of pixels 3 for each of the display devices 1, 10, 100, and 200, the first image and the second image A range 135 (see FIG. 11) where the two overlap each other can be eliminated.
A plurality of openings 163 are formed in the light shielding film 161. Each opening 163, among the respective light emitting portions 27 of the light 127a and 127b leading to each viewpoint La and Lb, through the first pixel 3 ₁ adjacent across between the two pixel groups 43 adjacent in the X direction It is located at the intersection Q of the light 127b that passes through the _second light 127a and the second pixel 3.

Then, by appropriately setting the size of the opening 163, from the first range 131 only the light 127a is visually recognized from the first pixel 3 ₁ more through the openings 163, the second from the range 133 only the light 127b can be viewed from the second pixel 3 ₂ more through the openings 163. According to the display device 300, the range 135 where the first image and the second image overlap can be eliminated.

  In the first embodiment and the second embodiment described above, the so-called transmissive display in which the display is performed by the light from the plurality of light emitting units 27 being transmitted only once through the liquid crystal 25 has been described as an example. It is not limited to. Hereinafter, an example of reflective display in which display is performed by reflecting light transmitted through the liquid crystal 25 from the plurality of light emitting units 27 toward the liquid crystal 25 will be described as a third embodiment.

  As shown in FIG. 22 which is a cross-sectional view when the display device 400 is cut at a position corresponding to the position of the line AA in FIG. 1 to the polarizing plate 15 are omitted. Further, the display device 400 is different from the display device 1 shown in FIG. 2 in that the display surface 7 is set on the light emitting element substrate 21 side and the bottom surface 35 is set on the drive element substrate 23 side. The display device 400 has the same configuration as the display device 1 except that the polarizing plate 15 is omitted and the settings of the display surface 7 and the bottom surface 35 are different. Therefore, in the following, the same components as those of the display device 1 among the components of the display device 400 are denoted by the same reference numerals, and detailed description thereof is omitted.

In the display device 400, the light emitting element substrate 21 is arranged such that the first surface 53 of the first substrate 51 faces the bottom surface 35 side, that is, the liquid crystal 25 side, as shown in FIG. 23, which is a cross-sectional view taken along the line CC in FIG. It has been. Between the first substrate 51 and the reflection film 55, a light absorption film 171 made of a material having a light absorption property is provided.
The drive element substrate 23 has the element surface 86b facing the display surface 7 side, that is, the liquid crystal 25 side. A polarizer 173 and an insulating layer 175 are provided between the insulating layer 89 and the pixel electrode 95. The polarizer 173 is provided on the display surface 7 side of the insulating layer 89. The insulating layer 175 is made of a light-transmitting material such as SiO or SiN, and is provided on the display surface 7 side of the polarizer 173. The polarizer 173 employs a wire grid structure and has the same configuration as the polarizer 63. Note that the outward surface 86 a of the second substrate 85 is directed toward the bottom surface 35, and corresponds to the bottom surface 35 in the display device 400.

A pair of electrodes 57a and 57b constituting the light emitting unit 27 is provided for each light emitting unit 27 as shown in FIG. 24 which is a cross-sectional view taken along the line SS in FIG. Each of the reflection film 55 and the light absorption film 171 is also provided for each light emitting unit 27.
The light absorption film 171 has a function of absorbing external light incident on the first substrate 51 from the display surface 7 side. With this function, it is possible to prevent external light from being reflected by the reflective film 55 and emitted from the display surface 7 side, and the contrast in display can be improved.
Between the light emitting parts 27 adjacent to each other in the X direction, a light transmitting layer 177 made of a light transmissive material such as an acrylic resin is provided.

In the display device 400, the light incident on the liquid crystal 25 from each light emitting unit 27 is reflected by the polarizer 173, and the reflected light is emitted from the display surface 7 through the light transmission layer 177 to perform display.
FIG. 25A is a diagram showing a polarization state when the TFT element 93 is in an OFF state, and FIG. 25B is a diagram showing a polarization state when the TFT element 93 is in an ON state.
In the display device 400, the direction 115 in which each wire 65 of the polarizer 173 extends is along the X ′ direction as shown in FIGS. 25 (a) and 25 (b). That is, the direction 115 in which each wire 65 of the polarizer 173 extends is along the direction 115 in which each wire 65 of the polarizer 63 extends.

Incident light incident on the polarizer 63 from each light emitting unit 27 is incident on the liquid crystal 25 as linearly polarized light 123 having a polarization axis along the Y ′ direction.
When the TFT element 93 is in the OFF state, the linearly polarized light 123 incident on the liquid crystal 25 is linearly polarized light 125 having a polarization axis along the X ′ direction due to the optical rotation of the liquid crystal 25 as shown in FIG. Is emitted toward the polarizer 173. The linearly polarized light 125 emitted toward the polarizer 173 is reflected by the polarizer 173 toward the liquid crystal 25 because the direction of the polarization axis is along the direction 115 in which the wire 65 of the polarizer 173 extends.

  The linearly polarized light 125 reflected toward the liquid crystal 25 is emitted toward the polarizer 63 as linearly polarized light 179 having a polarization axis along the Y ′ direction due to the optical rotation of the liquid crystal 25. The linearly polarized light 179 emitted toward the polarizer 63 is transmitted through the polarizer 63 and emitted from the display surface 7 because the direction of the polarization axis is orthogonal to the direction 115 in which the wire 65 of the polarizer 63 extends. .

  On the other hand, when the TFT element 93 is in the ON state, the linearly polarized light 123 is emitted toward the polarizer 173 as the linearly polarized light 123 while maintaining the polarization state, as shown in FIG. The linearly polarized light 123 emitted toward the polarizer 173 passes through the polarizer 173 because the direction of the polarization axis is orthogonal to the direction 115 in which the wire 65 of the polarizer 173 extends. That is, when the TFT element 93 is in the ON state, the light incident on the liquid crystal 25 from the light emitting unit 27 is not emitted from the display surface 7.

  As described above, the display device 400 employs the normally white display mode, but the display mode is not limited to this. If the direction 115 in which each wire 65 of the polarizer 63 extends and the direction 115 in which each wire 65 of the polarizer 173 extends are orthogonal to each other, a normally black display mode can be obtained.

  Here, in the display device 400, as described above, the light transmission layer 177 is provided between the light emitting units 27 adjacent in the X direction. The light reflected by the polarizer 173 toward the liquid crystal 25 side is transmitted through the light transmission layer 177 as shown in FIG. 26 which is a cross-sectional view schematically showing a plurality of sets of the pixel group 43 and the light emitting unit 27. 7 is injected. In FIG. 26, hatching of the light transmission layer 177 is omitted for easy understanding of the configuration.

From the first range 131, the first pixel 3 ₁ through the light transmission layer 177 can be viewed. From the second range 133, the second pixel 3 ₂ can be visually recognized through the light transmission layer 177. When an eye point within the first range 131, a first image formed by the light 127a from a plurality of first pixel 3 ₁ can be viewed. If there is a viewpoint in the second range 133, the second image formed by the light 127b from the plurality of second pixels 3 ₂ can be viewed. That is, the display device 400 can display the first image in the first range 131 and the second image in the second range 133 by reflective display. Note that the cross section shown in FIG. 26 corresponds to the cross section taken along line EE in FIG.

In the display device 400, the interval Pa between the light emitting units 27 adjacent in the X direction is set to be shorter than the interval Pb between the pixel groups 43 adjacent in the X direction. Thus, the display device 400, the light 127a emitted from the plurality of first pixel 3 ₁ intersect at both ends of the first range 131, the light 127b emitted from the plurality of second pixels 3 ₂ May be configured to intersect at each end of the second range 133.

  In the display devices 1, 10, 100, 200, and 300, as shown in FIG. 9, as an example, the light emitting units 27 extend in series between a plurality of sets of pixel groups 43 arranged along the Y direction. As described above, each light emitting unit 27 is not limited to this. As shown in FIG. 27, each light emitting unit 27 may have an independent configuration for each pixel group 43.

  In the display devices 1, 10, 100, 200, 300, and 400, the TN type liquid crystal 25 has been described as an example. However, the liquid crystal 25 is not limited to this, but an FFS (Fringe Field Switching) type, IPS (In Plane) Various types such as a switching type and a VA (vertical alignment) type can be adopted.

Further, in the display devices 1, 10, 100, 200, 300, and 400, when a plurality of sets of pixel groups 43 are arranged in a matrix along each of the X direction and the Y direction, as shown in FIG. However, the arrangement of the plurality of pixel groups 43 is not limited to this. As the arrangement of the plurality of sets of pixel groups 43, for example, as shown in FIG. 28, an arrangement arranged in a zigzag manner in the Y direction may be employed. In the arrangement shown in FIG. 28, the first pixels 3 ₁ and the second pixels 3 ₂ shown in FIG. 4 are alternately arranged in the X direction and also in the Y direction. In this case, each light emitting unit 27 is provided for each pixel group 43 as shown in FIG.

Each of the display devices 1, 10, 100, 200, 300, and 400 described above can be applied to, for example, the display unit 510 of the electronic device 500 illustrated in FIG. This electronic device 500 is a display device for a car navigation system. In the electronic device 500, for example, an image such as a map is visually recognized from the driver's seat side as the first image by the display unit 510 to which the display device 1, 10, 100, 200, 300, or 400 is applied. An image such as a movie can be visually recognized as the second image. Further, in electronic device 500, the range 135 where the first image and the second image overlap is reduced, the first image is viewed from the wide viewing range 137a, and the second viewing range from the wide viewing range 137b to the second. Can be visually recognized.
Note that the electronic device 500 is not limited to a display device for a car navigation system, and includes various electronic devices such as a mobile phone, a mobile computer, a digital still camera, a digital video camera, an in-vehicle device, and an audio device.

The disassembled perspective view which shows the main structures of the display apparatus in 1st Embodiment of this invention. Sectional drawing in the AA in FIG. FIG. 3 is a plan view showing a part of a plurality of pixels in the first embodiment. FIG. 3 is a plan view showing a part of a plurality of pixels in the first embodiment. FIG. 3 is a plan view for explaining the arrangement of a plurality of sets of pixel groups in the first embodiment. Sectional drawing in the CC line | wire in FIG. The perspective view which shows the polarizer in 1st Embodiment. Sectional drawing in the DD line | wire in FIG. The top view which shows the light emission part and pixel group in 1st Embodiment. The figure explaining the polarization state of the display apparatus in 1st Embodiment. FIG. 3 is a cross-sectional view schematically showing a plurality of sets of pixel groups and light emitting units in the first embodiment. FIG. 3 is a cross-sectional view schematically showing a plurality of sets of pixel groups and light emitting units in the first embodiment. Sectional drawing when the display apparatus in 2nd Embodiment is cut | disconnected in the position corresponded to the position of the AA line in FIG. Sectional drawing in the CC line | wire in FIG. Sectional drawing in the JJ line | wire in FIG. Sectional drawing which shows the other example of the light emission part in each of 1st Embodiment and 2nd Embodiment. Sectional drawing which shows the further another example of the light emission part in each of 1st Embodiment and 2nd Embodiment. The top view which shows the light emission part and pixel group in the other structural example of the display apparatus in each of 1st Embodiment and 2nd Embodiment. FIG. 6 is a cross-sectional view schematically showing a plurality of sets of pixel groups and light emitting units in another configuration example of the display device in each of the first embodiment and the second embodiment. FIG. 6 is a cross-sectional view schematically showing a plurality of sets of pixel groups and light emitting units in another configuration example of the display device in each of the first embodiment and the second embodiment. Sectional drawing which shows typically the further another structural example of the display apparatus in each of 1st Embodiment and 2nd Embodiment. Sectional drawing when the display apparatus in 3rd Embodiment is cut | disconnected in the position corresponded to the position of the AA line in FIG. Sectional drawing in the CC line | wire in FIG. FIG. 24 is a cross-sectional view taken along line SS in FIG. 23. The figure explaining the polarization state of the display apparatus in 3rd Embodiment. Sectional drawing which shows typically the multiple groups of pixel group and light emission part in 3rd Embodiment. The top view which shows the other example of the light emission part in each of 1st-3rd embodiment. The top view which shows the other example of the arrangement | sequence of the multiple groups of pixel group in each of 1st-3rd embodiment. The top view which shows the other example of the light emission part in each of 1st-3rd embodiment. The perspective view of the electronic device to which the display apparatus in 1st-3rd embodiment is applied. Sectional drawing explaining the subject of a prior art.

Explanation of symbols

1,10,100,200,300,400 ... display, 3 ... pixels, 3 ₁ ... first pixel, 3 ₂ ... second pixel, 7 ... display surface 11 ... liquid crystal panel, 21 ... light emitting element substrate , 23 ... Driving element substrate, 25 ... Liquid crystal, 27 ... Light emitting part, 43 ... Pixel group, 51 ... First substrate, 55 ... Reflective film, 57a, 57b ... Electrode, 59 ... Light emitting layer, 63, 173 ... Polarizer, 73 ... resin layer, 75 ... light absorption layer, 85 ... second substrate, 111 ... light shielding film, 131 ... first range, 133 ... second range, 137a, 137b ... suitable viewing range, 147 ... light emitting layer, 149 DESCRIPTION OF SYMBOLS ... Light emitting element, 151 ... Reflection film, 171 ... Light absorption film, 177 ... Light transmission layer, 500 ... Electronic device, 510 ... Display part.

Claims (14)

A pair of substrates facing each other;
A plurality of pixels including at least a first pixel that forms a first image and a second pixel that forms a second image, interposed between the pair of substrates while being held by the pair of substrates. A liquid crystal driven for each pixel,
Between one of the pair of substrates and the liquid crystal, light traveling in the first direction through the first pixel and light traveling in the second direction through the second pixel. An electro-optical device characterized in that a plurality of light emitting portions that emit light are provided in a state of being spaced apart from each other in a plan view.   The electro-optical device according to claim 1, wherein a polarizing element that defines a polarization state of light from each of the light emitting units is interposed between the plurality of light emitting units and the liquid crystal.   The electro-optical device according to claim 1, further comprising a light shielding film that covers the light emitting units in a plan view.   The plurality of light-emitting portions are configured by providing the light-shielding film on the liquid crystal side of a light-emitting layer provided in a state of being arranged between at least two adjacent light-emitting portions. The electro-optical device according to 3.   The reflective film is provided in the area | region which overlaps at least each of these light emitting parts by planar view between said one board | substrate and these light emitting parts. The electro-optical device according to one item.   The electro-optical device according to claim 4, wherein a reflective film is provided between the one substrate and the light emitting layer over a region overlapping the light emitting layer in plan view.   The electro-optical device according to claim 6, wherein a reflection film is provided between the light-emitting layer and the light-shielding film in a region where the light-emitting layer and the light-shielding film overlap in a plan view. A pair of substrates facing each other;
A plurality including a plurality of first pixels forming a first image and a plurality of second pixels forming a second image interposed between the pair of substrates while being held by the pair of substrates. A liquid crystal driven for each of the pixels;
Light that is provided between one of the pair of substrates and the liquid crystal, travels in the first direction through the first pixel, and travels in the second direction through the second pixel. A plurality of light emitting units emitting
The plurality of first pixels and the plurality of second pixels are respectively a red pixel capable of transmitting light exhibiting a red color, and a green pixel capable of transmitting light exhibiting a green color. A blue pixel capable of transmitting light exhibiting a blue color, and
The plurality of light emitting portions include a red light emitting portion that emits the light exhibiting a red color, a green light emitting portion that emits the light exhibiting a green color, and a blue light emitting the light exhibiting a blue color. An electro-optical device having a configuration in which system light emitting units are arranged in a plan view.   2. The electro-optical device according to claim 1, wherein a reflective film is provided in a region overlapping the plurality of pixels in plan view between the other substrate of the pair of substrates and the liquid crystal. apparatus.   The electro-optical device according to claim 9, wherein a light shielding film that covers each of the plurality of light emitting units in a plan view is provided between the one substrate and the plurality of light emitting units.   11. The electro-optical device according to claim 1, wherein the plurality of light emitting units are configured by electroluminescent elements.   The electro-optical device according to claim 1, wherein a resin layer is interposed between the plurality of light emitting units and the liquid crystal. A pair of substrates facing each other;
A liquid crystal that is interposed between the pair of substrates while being held by the pair of substrates and is driven for each of the plurality of pixels;
An electro-optical device, wherein a light emitting unit that emits light to be incident on the plurality of pixels is provided between one of the pair of substrates and the liquid crystal.   14. An electronic apparatus comprising the electro-optical device according to claim 1 as a display unit.

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