JP5024059B2 - Electro-optical device and electronic apparatus - Google Patents

Description

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

  Conventionally, an organic EL (Electro Luminescence) device is known as one of electro-optical devices. As an organic EL device, there is a display device that can display a stereoscopic image by alternately blocking light from an organic EL element with a pair of left and right liquid crystal elements (see, for example, Patent Document 1).

JP 2001-318341 A

Here, a mechanism for displaying different images in two directions in a display device having an organic EL element and a pair of liquid crystal elements will be described with reference to cross-sectional views. This display device 600 includes an organic EL element 601 and a pair of liquid crystal elements 603 as shown in FIG. The pair of liquid crystal elements 603 faces one organic EL element, and includes a first liquid crystal element 603a and a second liquid crystal element 603b.
When the second liquid crystal element 603 b is in the cut-off state, the light from the organic EL element 601 reaches the first range 605. At this time, if the first image is formed on the organic EL element 601, the first image can be visually recognized from the first range 605.

Further, when the first liquid crystal element 603a is in the cut-off state, the light from the organic EL element 601 reaches the second range 607 as shown in FIG. At this time, if the second image is formed on the organic EL element 601, the second image can be visually recognized from the second range 607.
By alternately switching the blocking state between the first liquid crystal element 603a and the second liquid crystal element 603b and causing the organic EL element 601 to alternately form the first image and the second image, the first image and the second image Each of the two images can be viewed as a continuous image.

Here, as shown in FIG. 28A, the first range 605 and the second range 607 have a range 611 that overlaps each other. From this range 611, the first image and the second image are visually recognized in a superimposed state.
From the range 613a excluding the range 611 from the first range 605, only the first image can be viewed. Similarly, only the second image can be visually recognized from the range 613b excluding the range 611 from the second range 607. The range 613a and the range 613b are referred to as an appropriate viewing range 613a and an appropriate viewing range 613b, respectively.
The appropriate viewing range 613a and the appropriate viewing range 613b can be expanded by shortening the distance L between the organic EL element 601 and the pair of liquid crystal elements 603, as shown in FIG.

By the way, in the display device described in Patent Document 1, a glass substrate is interposed between the organic EL element and the liquid crystal element. Therefore, in order to shorten the distance L with this display device, the glass substrate 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 First substrate, second substrate opposite to the first substrate, light emitting layer provided between the first substrate and the second substrate, and between the second substrate and the light emitting layer A light-shielding layer provided on the light-emitting layer, wherein the light-emitting layer controls light emission for each pixel of the plurality of pixels, and the plurality of pixels includes a first pixel and a second pixel that form a first image. At least a second pixel that forms an image of the first pixel. The light that passes through the first substrate through the second substrate from the light emitting layer of the first pixel passes through the light shielding layer, and 2. An electro-optical device, comprising: an opening through which light extending in a second range from the light emitting layer of the second pixel through the second substrate is provided.

The electro-optical device of Application Example 1 includes a first substrate, a second substrate, a light emitting layer, and a light shielding layer. The second substrate faces the first substrate. The light emitting layer is provided between the first substrate and the second substrate, and light emission is controlled for each pixel of the plurality of pixels. The plurality of pixels include at least a first pixel that forms a first image and a second pixel that forms a second image. The light shielding layer is provided between the second substrate and the light emitting layer. The light shielding layer is provided with an opening. The opening allows light from the light emitting layer of the first pixel to pass through the second substrate through the first range, and allows light from the light emitting layer of the second pixel to pass through the second substrate to pass through the second range. .
Thereby, the first image formed by the first pixel can be visually recognized from the first range, and the second image formed by the second pixel can be visually recognized from the second range. For this reason, this electro-optical device can perform directional display in at least two directions.

  Here, the light shielding layer is provided between the second substrate and the light emitting layer. That is, the light shielding layer is interposed between the first substrate and the second substrate. For this reason, compared with the case where a light shielding layer is arrange | positioned on the outer side of a 1st board | substrate and a 2nd board | substrate, the distance between a some pixel and a light shielding layer can be shortened. Therefore, in this electro-optical device, it is possible to easily enlarge the appropriate viewing range in each direction in which directivity display is performed.

  Application Example 2 In the above electro-optical device, the first electrode provided between the first substrate and the light emitting layer so as to face the light emitting layer, and between the light emitting layer and the light shielding layer. A second electrode provided opposite to the light emitting layer, and provided corresponding to each of the pixels, and the first electrode and the second electrode are provided from one of the first electrode and the second electrode through the light emitting layer. An electro-optical device comprising: a switching element that switches between supply and cutoff of a current flowing to the other electrode; and the switching element is provided between the first substrate and the light emitting layer.

The electro-optical device according to Application Example 2 includes a first electrode, a second electrode, and a switching element. The first electrode is provided between the first substrate and the light emitting layer. The second electrode is provided between the light emitting layer and the light shielding layer. Each of the first electrode and the second electrode faces the light emitting layer. The switching element is provided corresponding to each pixel. The switching element switches supply and interruption of a current flowing from one of the first electrode and the second electrode to the other of the first electrode and the second electrode through the light emitting layer.
In this electro-optical device, since the switching element is provided between the first substrate and the light emitting layer, the light traveling from the light emitting layer toward the second substrate is not blocked by the switching element. Therefore, it is possible to easily improve the utilization efficiency of light from the light emitting layer.

  Application Example 3 In the electro-optical device described above, a resin layer is interposed between the light emitting layer and the light shielding layer.

  In Application Example 3, a resin layer is interposed between the light emitting layer and the light shielding layer. In the resin layer, the thickness can be easily adjusted as compared with, for example, a glass substrate. Therefore, in this electro-optical device, the viewing range can be easily adjusted by adjusting the thickness of the resin layer.

  Application Example 4 In the electro-optical device described above, an optical element that refracts light from the light-emitting layer is provided in the resin layer.

  In Application Example 4, since the optical element that refracts the light from the light emitting layer is provided in the resin layer, the light from the light emitting layer can be easily guided to the opening.

  Application Example 5 In the electro-optical device described above, the optical element is configured by a prism.

  In Application Example 5, since the optical element is formed of a prism, light from the light emitting layer can be easily guided to the opening via the prism.

  Application Example 6 In the above electro-optical device, the optical element is formed of a lens.

  In Application Example 6, since the optical element is formed of a lens, light from the light emitting layer can be easily guided to the opening through the lens.

  Application Example 7 In the electro-optical device described above, the plurality of pixels emit red light having a light emitting layer that emits light exhibiting a red color and light exhibiting green light. An electro-optical device comprising: a green pixel having a light emitting layer; and a blue pixel having the light emitting layer that emits light exhibiting a blue color.

  In Application Example 7, the plurality of pixels include a red pixel, a green pixel, and a blue pixel. The red pixel has a light emitting layer that emits light exhibiting a red color. The green pixel has a light emitting layer that emits light exhibiting a green color. The blue pixel has a light emitting layer that emits light exhibiting a blue color. In this electro-optical device, each of the first image and the second image can be displayed in color.

  Application Example 8 In the electro-optical device described above, a red filter that transmits light exhibiting a red color, a green filter that transmits light exhibiting a green color, and a blue color are displayed. An electro-optical device comprising: a blue filter that transmits light.

  The electro-optical device according to Application Example 8 includes a red filter, a green filter, and a blue filter. The red filter transmits light having a red color. The green filter transmits light having a green color. The blue filter transmits light having a blue color. In this electro-optical device, each of the first image and the second image can be displayed in color.

  Application Example 9 In the electro-optical device described above, the red filter, the green filter, and the blue filter are provided for each of the openings. .

  In Application Example 9, since the red filter, the green filter, and the blue filter are provided for each opening, the red filter, the green filter, and the blue filter are respectively connected to the first filter. One pixel and the second pixel can be shared.

  Application Example 10 In the above electro-optical device, the red filter, the green filter, and the blue filter are provided in the openings, respectively. .

  In Application Example 10, since the red filter, the green filter, and the blue filter are respectively provided in the openings, the thickness of the electro-optical device can be easily reduced.

  Application Example 11 Electronic equipment having the electro-optical device as a display unit.

In the electronic device according to Application Example 11, the electro-optical device as the display unit includes a first substrate, a second substrate, a light emitting layer, and a light shielding layer. The second substrate faces the first substrate. The light emitting layer is provided between the first substrate and the second substrate, and includes a plurality of pixels including at least a first pixel that forms a first image and a second pixel that forms a second image. Light emission is controlled for each pixel. The light shielding layer is provided between the second substrate and the light emitting layer. The light shielding layer is provided with an opening. The opening allows light from the light emitting layer of the first pixel to pass through the second substrate through the first range, and allows light from the light emitting layer of the second pixel to pass through the second substrate to pass through the second range. .
Thereby, the first image formed by the first pixel can be visually recognized from the first range, and the second image formed by the second pixel can be visually recognized from the second range. For this reason, this electro-optical device can perform directional display in at least two directions.
Here, the light shielding layer is provided between the second substrate and the light emitting layer. That is, the light shielding layer is interposed between the first substrate and the second substrate. For this reason, compared with the case where a light shielding layer is arrange | positioned on the outer side of a 1st board | substrate and a 2nd board | substrate, the distance between a some pixel and a light shielding layer can be shortened. Therefore, in this electro-optical device, it is possible to easily enlarge the appropriate viewing range in each direction in which directivity display is performed. And since the electronic device of the application example 11 is equipped with the electro-optical device which can expand a suitable visual range as a display part, expansion of a suitable visual range is achieved.

Embodiments will be described with reference to the drawings, taking a display device using an organic EL device as an electro-optical device as an example.
The display device 1 according to the embodiment has a display surface 3 as shown in FIG.

  Here, a plurality of pixels 5 are set in the display device 1. The plurality of pixels 5 are arranged in the X direction and the Y direction in the drawing within the display area 7, and constitute a matrix M in which the X direction is the row direction and the Y direction is the column direction. In the display device 1, the plurality of pixels 5 form a matrix M having m (m is an integer of 1 or more) rows and 2 × n (n is an integer of 1 or more) columns. The display device 1 can display an image on the display surface 3 by selectively emitting light from the plurality of pixels 5 to the outside of the display device 1 via the display surface 3. The display area 7 is an area where an image can be displayed. In FIG. 1, the pixels 5 are exaggerated for easy understanding of the configuration.

The display device 1 includes an element substrate 11 and a sealing substrate 13 as shown in FIG. 2 which is a cross-sectional view taken along the line AA in FIG.
The element substrate 11 is provided with a switching element, which will be described later, corresponding to each of the plurality of pixels 5 on the display surface 3 side, that is, the sealing substrate 13 side.

The sealing substrate 13 is provided in a state facing the element substrate 11 on the display surface 3 side with respect to the element substrate 11. The sealing substrate 13 is provided with a light shielding film, which will be described later, on the bottom surface 15 side, that is, the element substrate 11 side, which is a surface corresponding to the back surface of the display surface 3 in the display device 1.
The element substrate 11 and the sealing substrate 13 are sealed with a sealing material 17 that surrounds the display region 7 inside the periphery of the display device 1.

  Here, in each of the plurality of pixels 5 set in the display device 1, the colors of light emitted from the display surface 3 are red (R), green (G), and blue as shown in FIG. One of the systems (B) is set. That is, the plurality of pixels 5 constituting the matrix M include a pixel 5r that emits R light, a pixel 5g that emits G light, and a pixel 5b 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 5 arranged along the Y direction form one pixel column 21. A plurality of pixels 5 arranged along the X direction form one pixel row 23. Each pixel 5 in one pixel row 21 has a light color set to one of R, G, and B. That is, the matrix M includes a pixel column 21r in which a plurality of pixels 5r are arranged in the Y direction, a pixel column 21g in which a plurality of pixels 5g are arranged in the Y direction, and a pixel column 21b in which a plurality of pixels 5b are arranged in the Y direction. have. In the display device 1, the pixel column 21r, the pixel column 21g, and the pixel column 21b are repeatedly arranged along the X direction by two columns in this order.

In the display device 1, a plurality of pixels 5 which constitute the matrix M, as shown in FIG. 4, a plurality of first pixels 5 _1, are divided into a plurality of second pixels 5 _2. Display device 1, by emitting light to the outside of the display device 1 via a selectively display surface 3 of a plurality of first pixels 5 _1, it is possible to display the first image on the display surface 3 . In addition, the display device 1 displays a _second image on the display surface 3 by selectively emitting light from the plurality of second pixels 52 to the outside of the display device 1 via the display surface 3. Can do.

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 pixel 5, pixel 5r, a notation 5g and 5b, notation and is referred to as a first pixel 5 ₁ and the second pixel 5 _2, as appropriate, be divided to use. Also, if the R, G, and B are identified for each of the first pixel 5 ₁ and the second pixel 5 _2, first pixel 5r _1, 5 g ₁ and 5b _1, and a second pixel The notations 5r ₂ , 5g ₂ and 5b ₂ are used.

In the display device 1, the first pixels 5 ₁ and the second pixels 5 ₂ are alternately arranged in the X direction. One pixel column 21 is constituted by a plurality of first pixels 5 _one or more second pixels 5 _2. In other words, the matrix M includes a plurality of first pixels 5 ₁ and pixel column 21 ₁ which is arranged along the Y direction, the pixel 5 _second plurality of second are the pixel columns 21 ₂ which are arranged along the Y direction Have. In the following description, the notation of the pixel column 21, the notation of the pixel column 21r, the pixel column 21g, and the pixel column 21b and the notation of the pixel column 21 ₁ and the pixel column 21 ₂ are appropriately used. Further, when R, G, and B are identified for the pixel column 21 ₁ and the pixel column 21 ₂ , the pixel columns 21r ₁ , 21g _1, and 21b ₁ , and the pixel columns 21r ₂ , 21g _2, and 21b _{2, respectively.} The notation is used.

In the display device 1, a plurality of pixels 5 which constitute the matrix M is, for every two pixels 5 of the first pixel 5 ₁ and the second pixel 5 ₂ adjacent in the X direction, the two pixels 5 1 The pixel group 25 is divided into a plurality of groups. The first pixel 5 ₁ and the second pixel 5 ₂ sorted in each pixel group 25 is same among the pixel groups 25. In the display device 1, the first pixel 5 ₁ and the second pixels 5 _2, as viewed in FIG. 4, they are arranged in this order from the left in the X direction toward the right side. The first pixel 5 ₁ and the second pixel 5 ₂ sort order, if the same among the pixel groups 25, either may be the right side on the left.

In the display device 1, the first pixel 5 ₁ and the second pixel 5 ₂ constituting each pixel group 25, the color of the emitted light is set R, to one of the G and B . That is, the first pixel 5r ₁ and the second pixel 5r ₂ constitute a set of pixel groups 25, the first pixel 5g ₁ and the second pixel 5g ₂ constitute a set of pixel groups 25, The first pixel 5b ₁ and the second pixel 5b ₂ constitute a set of pixel groups 25. In the following, when R, G, and B are identified for each of a plurality of sets of pixel groups 25, the notation of a pixel group 25r, a pixel group 25g, and a pixel group 25b is used.

In the matrix M, a plurality of sets of pixel groups 25 are arranged along the X direction and the Y direction, as shown in FIG. That is, the plurality of sets of pixel groups 25 are arranged in a matrix.
In the display device 1, the plurality of pixels 5 form a matrix M having m rows and 2 × n columns as described above. Therefore, the plurality of sets of pixel groups 25 form a matrix of m rows and n columns.

  As shown in FIG. 6, which is a diagram illustrating a circuit configuration, the display device 1 is common to the selection transistor 27, the drive transistor 29, the capacitor element 31, the pixel electrode 33, and the organic layer 35 for each pixel 5. And an electrode 37. Each of the selection transistor 27 and the drive transistor 29 is configured by a TFT (Thin Film Transistor) element and has a function as a switching element. In the display device 1, an N-channel TFT element is employed as the selection transistor 27, and a P-channel TFT element is employed as the drive transistor 29.

Further, the display device 1 includes m scanning lines GT ₁ , m scanning lines GT ₂ , n data lines SI ₁ , n data lines SI ₂ , and m power lines PW. have.
In the following description, when each of the m scanning lines GT ₁ is identified, the notation of the scanning line GT ₁ (h) is used (h is an integer of _{1 to} m). Similarly, when each of m scanning lines GT ₂ and m power supply lines PW is identified, the notation of scanning line GT ₂ (h) and the notation of power supply line PW (h) are used. .
When each of the n data lines SI ₁ and the n data lines SI ₂ is identified, the notation of the data line SI ₁ (j) and the notation of the data line SI ₂ (j) are used. (J is an integer from 1 to n).

The m scanning lines GT ₁ and the scanning lines GT ₂ extend along the X direction while being spaced apart from each other in the Y direction. The n data lines SI ₁ and data lines SI ₂ extend along the Y direction with a space therebetween in the X direction. The m scanning lines GT ₁ and the n data lines SI ₁ are wired in a grid pattern. Each first pixel 5 ₁ is set so as to correspond to intersections of the scanning lines GT ₁ and the data lines SI _1.

Similarly, the m scanning lines GT ₂ and the n data lines SI ₂ are wired in a grid pattern. Each second pixel 5 ₂ is set so as to correspond to intersections of the scanning lines GT ₂ and the data lines SI _2.
Each scanning line GT ₁ and each scanning line GT ₂ correspond to each pixel row 23 (FIG. 3). In each pixel row 23, the scanning line GT ₁ corresponds to the n first pixels 5 ₁ as shown in FIG. In each pixel row 23, the scanning line GT ₂ corresponds to n second pixels 5 ₂ .

Each data line SI ₁ and each data line SI ₂ correspond to each pixel column 21 (FIG. 3). In each pixel column 21, the data line SI ₁ corresponds to, as shown in FIG. 6, m pieces of first pixels 5 ₁ i.e. one pixel column 21 ₁ (Figure 4). Further, in each pixel column 21, the data line SI ₂ corresponds to m second pixels 5 ₂ i.e. one pixel column 21 ₂ (FIG. 4).
As shown in FIG. 6, the m power lines PW extend along the X direction in a state of being spaced apart from each other in the Y direction. Each power supply line PW corresponds to each pixel row 23 (FIG. 3).

The gate electrode of each select transistor 27 shown in FIG. 6 is electrically connected to each corresponding scan line GT ₁ and GT ₂ . The source electrode of each select transistor 27 is electrically connected to each corresponding data line SI ₁ and SI ₂ . The drain electrode of the selection transistor 27 is electrically connected to the gate electrode of the driving transistor 29 and one electrode of the capacitor 31.

The other electrode of the capacitive element 31 and the source electrode of the drive transistor 29 are electrically connected to the corresponding power supply line PW.
The drain electrode of each drive transistor 29 is electrically connected to each pixel electrode 33. Each pixel electrode 33 and the common electrode 37 constitute a pair of electrodes having the pixel electrode 33 as an anode and the common electrode 37 as a cathode.
Here, the common electrode 37 is provided in a series of states between the plurality of pixels 5 constituting the matrix M, and functions in common between the plurality of pixels 5.
The organic layer 35 interposed between each pixel electrode 33 and the common electrode 37 is made of an organic material and includes a light emitting layer.

The selection transistor 27 is turned on when a scanning signal is supplied to the scanning lines GT ₁ and GT ₂ connected to the selection transistor 27. At this time, data signals are supplied from the data lines SI ₁ and SI ₂ connected to the selection transistor 27, and the drive transistor 29 is turned on. The gate potential of the driving transistor 29 is held for a certain period by holding the potential of the data signal in the capacitor 31 for a certain period. As a result, the ON state of the drive transistor 29 is held for a certain period.

  When the ON state of the driving transistor 29 is maintained, a current corresponding to the gate potential of the driving transistor 29 flows from the power supply line PW to the common electrode 37 through the pixel electrode 33 and the organic layer 35. Then, the light emitting layer included in the organic layer 35 emits light with a luminance corresponding to the amount of current flowing through the organic layer 35. The display device 1 is one of top emission type organic EL devices in which a light emitting layer included in the organic layer 35 emits light, and light from the light emitting layer is emitted from the display surface 3 through the sealing substrate 13.

Here, the details of the configurations of the element substrate 11 and the sealing substrate 13 will be described.
The element substrate 11 has a first substrate 41 as shown in FIG. 7 which is a cross-sectional view taken along the line CC in FIG.
The first substrate 41 is made of a light-transmitting material such as glass or quartz, for example, and includes a first surface 42a facing the display surface 3 side and a second surface 42b facing the bottom surface 15 side. have.

A gate insulating film 43 is provided on the first surface 42 a of the first substrate 41. An insulating film 45 is provided on the display surface 3 side of the gate insulating film 43. An insulating film 47 is provided on the display surface 3 side of the insulating film 45. An insulating film 49 is provided on the display surface 3 side of the insulating film 47.
A first semiconductor layer 51 corresponding to the driving transistor 29 of each pixel 5 and a second semiconductor layer 53 corresponding to the selection transistor 27 of each pixel 5 are provided on the first surface 42 a of the first substrate 41. ing.

As shown in FIG. 8 which is a plan view, the first semiconductor layer 51 and the second semiconductor layer 53 are provided corresponding to the respective pixels 5. The cross section shown in FIG. 7 corresponds to the cross section taken along the line DD in FIG.
The first semiconductor layer 51 and the second semiconductor layer 53 are adjacent to each other in the Y direction with a space in the Y direction.

  The first semiconductor layer 51 includes a source region 51a, a channel region 51b, a drain region 51c, and an electrode portion 51d. The source region 51a, the channel region 51b, and the drain region 51c are arranged in the X direction. The electrode portion 51d, the channel region 51b, and the drain region 51c are adjacent to each other in the Y direction with a space in the Y direction. The electrode part 51d and the source region 51a are adjacent to each other in the X direction in a connected state.

The second semiconductor layer 53 has a source region 53a, a channel region 53b, and a drain region 53c. The source region 53a, the channel region 53b, and the drain region 53c are arranged in the X direction.
Between the first pixel 5 ₁ and the second pixel 5 ₂ in each pixel group 25, between the first semiconductor layer 51 and between the second semiconductor layer 53, the outline of a plan view in the relation of rotational symmetry.

  As shown in FIG. 7, the first semiconductor layer 51 and the second semiconductor layer 53 are covered with the gate insulating film 43 from the display surface 3 side. In addition, as a material of the gate insulating film 43, materials, such as a silicon oxide, can be employ | adopted, for example.

On the display surface 3 side of the gate insulating film 43, as shown in FIG. 9 which is a plan view, an island-shaped electrode 55 overlapping the first semiconductor layer 51, scanning lines GT ₁ and GT ₂ , data lines SI ₁ and SI ₂ is provided.
As shown in FIG. 10 which is a plan view, the island-like electrode 55 has a gate electrode portion 55a and an electrode portion 55b. The gate electrode portion 55a and the electrode portion 55b are adjacent to each other in the Y direction in a connected state.

The gate electrode portion 55a overlaps the channel region 51b of the first semiconductor layer 51 shown in FIG. The electrode part 55 b overlaps the electrode part 51 d of the first semiconductor layer 51. The electrode part 51 d and the electrode part 55 b constitute a part of the capacitive element 31.
Each of the scanning lines GT ₁ and GT ₂ is provided with two gate electrode portions 57 that branch in the Y direction toward each pixel 5 for each corresponding pixel 5. Each gate electrode portion 57 overlaps the channel region 53b of the second semiconductor layer 53 shown in FIG.

The island-shaped electrode 55 corresponding to each pixel 5 and the data line SI ₁ (SI ₂ ) corresponding to this pixel 5 are adjacent to each other in the X direction. In the display device 1, the two island electrode 55 in each pixel group 25, the data line SI ₁ and the data line SI ₂ corresponding to each of the pixel groups 25 of the first pixel 5 ₁ and the second pixel 5 ₂ Are sandwiched in the X direction.
Further, the two island electrode 55 in each pixel group 25, Y by the scanning line GT ₁ corresponding to each of the pixel groups 25 of the first pixel 5 ₁ and the second pixel 5 ₂ and the scan line GT ₂ It is sandwiched in the direction.

Island electrodes 55, the scan line GT ₁ and GT _2, and as the material of the data lines SI ₁ and SI _2, for example, aluminum, copper, molybdenum, tungsten, or chromium, or an alloy containing these is adopted obtain. As shown in FIG. 7, the gate electrode portion 55a (island electrode 55), the gate electrode portion 57 (scanning lines GT ₁ and GT ₂ ), and the data lines SI ₁ and SI ₂ are separated from the display surface 3 side by the insulating film 45. Covered.

As shown in FIG. 11 which is a plan view, the insulating film 45 is provided with contact holes CH1, CH2, CH3, CH4, CH5, CH6 and CH7 corresponding to each pixel 5.
Each contact hole CH1 is provided in a portion overlapping each data line SI ₁ and SI ₂ corresponding to each data line SI ₁ and SI ₂ . Each contact hole CH1 is provided at a portion facing the source region 53a of the second semiconductor layer 53 in the X direction. Each contact hole CH1 extends to the corresponding data line SI ₁ and SI ₂ .

  Each contact hole CH2 is provided in a portion corresponding to each source region 53a and overlapping each source region 53a. Each contact hole CH2 is provided at a portion facing each contact hole CH1 in the X direction. Each contact hole CH2 extends to the source region 53a of the second semiconductor layer 53.

Each contact hole CH3 is provided in a portion corresponding to each drain region 53c and overlapping each drain region 53c. Each contact hole CH3 extends to the drain region 53c of the second semiconductor layer 53.
Each contact hole CH4 is provided at a portion corresponding to each electrode portion 55b and overlapping each electrode portion 55b. Each contact hole CH4 is provided in a part facing each contact hole CH3 in the Y direction. Each contact hole CH4 extends to each electrode portion 55b.

Two contact holes CH5 are provided corresponding to each drain region 51c of each first semiconductor layer 51 at a portion overlapping each drain region 51c. Each contact hole CH <b> 5 extends to the drain region 51 c of the first semiconductor layer 51.
Each contact hole CH6 is provided in a portion overlapping each data line SI ₁ and SI ₂ corresponding to each data line SI ₁ and SI ₂ . Each contact hole CH6 is provided at a portion facing the gate electrode portion 55a across the source region 51a in the X direction. Each contact hole CH6 extends to the corresponding data line SI ₁ and SI ₂ .

Two contact holes CH7 are provided corresponding to each source region 51a at a portion overlapping each source region 51a. Each contact hole CH7 is, in plan view, between each data line SI ₁ and SI ₂ corresponding to each pixel 5 and the electrode portion 55b of the island-like electrode 55, at a portion facing the electrode portion 55b in the X direction. Is provided. Each contact hole CH7 extends to the source region 51a of the first semiconductor layer 51.

On the display surface 3 side of the insulating film 45 provided with the contact holes CH1 to CH7, as shown in FIG. 12, which is a plan view, a power line PW, a drain electrode 59, a relay electrode 61, a relay electrode 63, Is provided.
Each power supply line PW is provided in a state in which each pixel row 23 (FIG. 3) is arranged in a series extending over a length extending in the X direction. Each power supply line PW is set to have a width across the two contact holes CH7 aligned in the Y direction as shown in FIG. Each power supply line PW covers a plurality of contact holes CH7 in each pixel row 23.

  In each pixel 5, the power supply line PW is located between the selection transistor 27 and the drive transistor 29 in plan view. In other words, the selection transistor 27 and the drive transistor 29 are opposed to each other in the Y direction with the power supply line PW interposed therebetween. Further, the source region 53a, the channel region 53b (FIG. 8), and the drain region 53c of the selection transistor 27 are located outside the power supply line PW in plan view. A part of the source region 51a of the drive transistor 29, the channel region 51b (FIG. 8), and the drain region 51c are located outside the power supply line PW in plan view.

Further, between the pair of pixel group 25 in the first pixel 5 ₁ and the second pixel 5 _2, and one selection transistor 27, and the other of the drive transistor 29, as shown in FIG. 12, in the X-direction Next to each other. A set of the first pixel 5 ₁ and the second pixel 5 between ₂ in the pixel group 25, among the select transistors 27 are located on opposite sides of the power supply line PW in the Y direction. Similarly, between a set of pixel groups 25 in the first pixel 5 ₁ and the second pixel 5 _2, the driving transistor 29 to each other they are located on opposite sides of the power supply line PW in the Y direction.

Each power supply line PW reaches the source region 51a of the first semiconductor layer 51 through the contact hole CH7, as shown in FIG. 13 which is a cross-sectional view taken along line EE in FIG. In the display device 1, a portion reaching each source region 51 a from each power line PW via the contact hole CH 7 is called a source electrode portion 65.
As described above, each contact hole CH7 is provided between each data line SI ₁ and SI ₂ corresponding to each pixel 5 and the electrode portion 55b of the island electrode 55 in plan view. For this reason, each source electrode portion 65 is located between each data line SI ₁ and SI ₂ corresponding to each pixel 5 and the electrode portion 55 b of the island-like electrode 55 in plan view.

  Here, the capacitive element 31 is formed in a region where the power supply line PW, the electrode portion 55b of the island-shaped electrode 55, and the electrode portion 51d of the first semiconductor layer 51 overlap in plan view. For this reason, the capacitive element 31 can be regarded as being provided between the first substrate 41 and the power supply line PW. The electrode part 55b, the electrode part 51d, and the power supply line PW constitute a part of the capacitor 31.

  As shown in FIG. 12, the drain electrode 59 is provided corresponding to each pixel 5 and covers the contact hole CH5. Each drain electrode 59 reaches the drain region 51c of the first semiconductor layer 51 through the contact hole CH5 as shown in FIG. 14 which is an enlarged view of the F portion in FIG. In the display device 1, a portion reaching the drain region 51 c from the drain electrode 59 via the contact hole CH 5 is called a connection portion 67.

  The relay electrode 61 is provided corresponding to each pixel 5 as shown in FIG. Each relay electrode 61 extends between a contact hole CH1 corresponding to one pixel 5 and a contact hole CH6 corresponding to the other pixel 5 between two pixels 5 adjacent in the Y direction. In each pixel 5, each relay electrode 61 extends between the contact hole CH1 and the contact hole CH2.

Each relay electrode 61 covers the contact holes CH1 and CH2 corresponding to one of the two pixels 5 adjacent in the Y direction and the contact hole CH6 corresponding to the other of the two pixels 5. As a result, the two data lines SI ₁ adjacent in the Y direction are electrically connected via the relay electrode 61. Further, two data lines SI ₂ adjacent in the Y direction are also electrically connected via the relay electrode 61.
Further, the data line SI ₁ and the corresponding source region 53 a of the second semiconductor layer 53 are electrically connected via the relay electrode 61. Further, the data line SI ₂ and the corresponding source region 53 a of the second semiconductor layer 53 are electrically connected via the relay electrode 61.

  The relay electrode 63 is provided corresponding to each pixel 5 and spans between the contact hole CH3 and the contact hole CH4 corresponding to each pixel 5. Each relay electrode 63 covers the contact holes CH3 and CH4 outside the outline of the power supply line PW. Thereby, in each pixel 5, the drain region 53 c of the second semiconductor layer 53 and the electrode portion 55 b of the island-like electrode 55 are electrically connected via the relay electrode 63 outside the outline of the power supply line PW. The

As a material for the power supply line PW, the drain electrode 59, the relay electrode 61, and the relay electrode 63, for example, a metal such as aluminum, copper, molybdenum, tungsten, or chromium, or an alloy containing these metals may be employed. As shown in FIG. 7, the drain electrode 59, the relay electrode 61, and the relay electrode 63 are covered with the insulating film 47 from the display surface 3 side. The power supply line PW is also covered with the insulating film 47 from the display surface 3 side.
The insulating film 47 is covered from the display surface 3 side by the insulating film 49.

The insulating film 47 and the insulating film 49 are provided with a contact hole CH8.
Each contact hole CH8 is provided corresponding to each pixel 5 as shown in FIG. Each contact hole CH 8 is provided in a region overlapping the drain electrode 59 and extends to the drain electrode 59.
Each drain electrode 59 extends in the X direction to the side opposite to the gate electrode portion 55a. Each contact hole CH8 overlaps the extended portion of the drain electrode 59 in plan view. Thereby, the contact hole CH5 and the contact hole CH8 do not overlap in plan view. Here, the contact hole CH5 and the contact hole CH8 may overlap.

As shown in FIG. 7, a pixel electrode 33 is provided for each pixel 5 on the display surface 3 side of the insulating film 49 provided with the contact hole CH8.
As shown in FIG. 15 which is a plan view, each pixel electrode 33 extends across the scanning line GT ₁ and the scanning line GT ₂ in the Y direction, and corresponds to the contact hole CH 8 and each pixel 5 in the X direction. It extends over the data line SI ₁ or the data line SI ₂ . Each pixel electrode 33 covers the contact hole CH8.

In the display device 1, a part reaching each drain electrode 59 from each pixel electrode 33 through the contact hole CH8 is called a connection portion 69 as shown in FIG.
As a material of the pixel electrode 33, a metal having light reflectivity such as silver, aluminum, copper, an alloy containing these, or the like can be adopted. When the pixel electrode 33 functions as an anode, it is preferable to use a material having a relatively high work function such as silver or platinum. Further, a configuration in which ITO (Indium Tin Oxide), indium zinc oxide (Indium Zinc Oxide), or the like is used as the pixel electrode 33 and a light-reflective member is provided between the pixel electrode 33 and the first substrate 41 is also employed. Can be done.
Further, as the material of the insulating films 47 and 49, for example, materials such as silicon oxide, silicon nitride, and acrylic resin can be adopted.

  Between the adjacent pixel electrodes 33, as shown in FIG. 7, a bank 71 that partitions the effective area of each pixel 5 is provided over the area 72. The bank 71 extends to the insulating film 49 between the adjacent pixel electrodes 33. The bank 71 is made of, for example, an acrylic resin or a polyimide resin containing a material having a high light absorption property such as carbon black or chromium, and has a lattice shape as shown in FIG. 16 which is a plan view. Is provided.

The bank 71 is provided over the display area 7. Therefore, in the display area 7, the effective areas of the plurality of pixels 5 are partitioned by the bank 71. As shown in FIG. 16, each pixel electrode 33 overlaps the bank 71 with the bank 71 in plan view.
Here, the bank 71, a bank 71a is a portion between the pixel groups 25 adjacent in the X-direction, a pair of sites between the first pixel 5 ₁ and the second pixel 5 ₂ pixel group 25 And a bank 71b. The width dimension in the X direction of the bank 71b is set longer than the width dimension in the X direction of the bank 71a.

  In each pixel 5, the connection portion 69 and the contact hole CH8 of the pixel electrode 33 overlap the bank 71b in plan view as shown in FIGS. That is, the connection part 69 and the contact hole CH8 are hidden by the bank 71b in plan view.

On the display surface 3 side of the pixel electrode 33, as shown in FIG. 7, an organic layer 35 is provided in a region surrounded by the bank 71.
The organic layer 35 is provided corresponding to each pixel 5 and includes a hole injection layer 73, a hole transport layer 75, and a light emitting layer 77.
The hole injection layer 73 is made of an organic material, and is provided on the display surface 3 side of the pixel electrode 33 in a region surrounded by the bank 71 in plan view. The hole injection layer 73 can be provided by applying a liquid organic material.
As a material of the hole injection layer 73, a mixture of a polythiophene derivative such as 3,4-polyethylenedioxythiophene (PEDOT) and polystyrene sulfonic acid (PSS) or the like may be employed. As a material for the hole injection layer 73, polystyrene, polypyrrole, polyaniline, polyacetylene, derivatives thereof, and the like may be employed.

The hole transport layer 75 is made of an organic material, and is provided on the display surface 3 side of the hole injection layer 73 in a region surrounded by the bank 71 in plan view. The hole transport layer 75 can be provided by applying a liquid organic material.
As a material of the hole transport layer 75, for example, a configuration including a triphenylamine-based polymer such as TFB shown as the following compound 1 can be adopted.

The light emitting layer 77 is made of an organic material, and is provided on the display surface 3 side of the hole transport layer 75 in a region surrounded by the banks 71 in plan view. The light emitting layer 77 can be provided by applying a liquid organic material.
As a material of the light emitting layer 77 corresponding to the R pixel 5r, for example, CN-PPV shown as the following compound 2 can be adopted.

  As a material of the light emitting layer 77 corresponding to the G pixel 5g, for example, a material obtained by mixing F8BT shown as the following compound 3 and TFB shown as the compound 1 in a ratio of 1: 1 may be adopted.

  As a material of the light emitting layer 77 corresponding to the B pixel 5b, for example, F8 (polydioctylfluorene) shown as the following compound 4 may be employed.

As shown in FIG. 7, a common electrode 37 is provided on the display surface 3 side of the organic layer 35. The common electrode 37 is made of, for example, a light-transmitting material such as ITO or indium zinc oxide, or a material that has been made light-transmitting by thinning magnesium silver or the like, and displays the organic layer 35 and the bank 71. A plurality of pixels 5 are covered from the surface 3 side.
In the display device 1, the region that emits light in each pixel 5 can be defined as a region in which the pixel electrode 33, the organic layer 35, and the common electrode 37 overlap in a region surrounded by the bank 71 in plan view. .

An auxiliary wiring 39 is provided on the display surface 3 side of the common electrode 37. The auxiliary wiring 39 is provided in a region overlapping the bank 71b in a plan view on the display surface 3 side with respect to the common electrode 37. As the auxiliary wiring 39, for example, a metal such as aluminum, copper, gold, silver, molybdenum, tungsten, or chromium, or an alloy containing these metals can be used.
The auxiliary wiring 39 is electrically connected to the common electrode 37 and has a function of assisting the electric conduction of the common electrode 37.

The sealing substrate 13 has a second substrate 81. The second substrate 81 is made of a light-transmitting material such as glass or quartz, and has an outward surface 82a facing the display surface 3 side and an opposing surface 82b facing the bottom surface 15 side. is doing.
A light shielding film 83 is provided on the facing surface 82 b of the second substrate 81. The light shielding film 83 can be made of, for example, a resin containing carbon black or the like, or a material having high light absorption such as chromium. The light shielding film 83 is provided between the plurality of pixels 5 constituting the matrix M. That is, the light shielding film 83 is provided in a region overlapping the plurality of pixels 5 constituting the matrix M in plan view.

The light shielding film 83 has an opening 85 is provided to overlap the first pixel 5 ₁ and the second pixel 5 ₂ in a plan view constituting each pixel group 25.
Each opening 85 is provided corresponding to each pixel group 25 as shown in FIG. 17 which is a plan view of the light shielding film 83 and the pixel group 25. In FIG. 17, the light shielding film 83 is hatched for easy understanding of the configuration.

Further, as shown in FIG. 7, a color filter 87 is provided on the facing surface 82b of the second substrate 81 so as to cover the region in the opening 85 from the bottom surface 15 side. The color filter 87 is provided for each opening 85.
Here, the color filter 87 can transmit light in a predetermined wavelength region of incident light. The color filter 87 is composed of a resin colored in a different color for each of the pixel group 25r, the pixel group 25g, and the pixel group 25b.

  The color filter 87 corresponding to the pixel group 25r can transmit R light. The color filter 87 corresponding to the pixel group 25g can transmit G light, and the color filter 87 corresponding to the pixel group 25b can transmit B light. In the following, when R, G, and B are identified for each color filter 87, the notation of color filters 87r, 87g, and 87b is used.

  Here, in the display device 1, the light emitting layer 77 of the pixel 5r emits R light. The R light emitted from the light emitting layer 77 of the pixel 5r is transmitted through the color filter 87r, so that the color purity of R is increased. The G light emitted from the light emitting layer 77 of the pixel 5g is transmitted through the color filter 87g, so that the color purity of G is increased. The B light emitted from the light emitting layer 77 of the pixel 5b is The color purity of B is increased by passing through 87b.

  An overcoat layer 89 is provided on the bottom surface 15 side of the light shielding film 83 and the color filter 87. The overcoat layer 89 is made of a light-transmitting resin or the like, and covers the light shielding film 83 and the color filter 87 from the bottom surface 15 side.

A resin layer 93 is provided on the bottom surface 15 side of the overcoat layer 89. The resin layer 93 is made of a light-transmitting material such as an acrylic resin or an epoxy resin, and prism portions 95 a and 95 b are formed corresponding to each pixel 5. In the display device 1, the prism portion 95a corresponds to the first pixel 5 _1, the prism portion 95b corresponds to the second pixel 5 _2.

In the sealing substrate 13 and the element substrate 11 having the above-described configuration, the resin layer 93 and the common electrode 37 apply the adhesive 97 in a state where the prism portions 95a and 95b side of the resin layer 93 and the common electrode 37 side face each other. Are joined through.
In the display device 1, the sealing material 17 illustrated in FIG. 2 is sandwiched between the first surface 42 a of the first substrate 41 and the facing surface 82 b of the second substrate 81 illustrated in FIG. 7. That is, in the display device 1, the adhesive 97 is sealed with the first substrate 41, the second substrate 81, and the sealing material 17. Note that the sealing material 17 may be provided between the resin layer 93 and the common electrode 37. In this case, the adhesive 97 can be regarded as being sealed by the element substrate 11, the sealing substrate 13, and the sealing material 17.

Note that the adhesive 97 extends into the prism portions 95 a and 95 b of the resin layer 93. In addition, as the material of the adhesive 97, a material having optical transparency and a refractive index different from that of the resin layer 93 can be adopted. Thereby, the light from the light emitting layer 77 of each pixel 5 to the corresponding prism portions 95a and 95b can be refracted by each of the prism portions 95a and 95b.
In the display device 1, the refractive index of the resin layer 93 is set higher than the refractive index of the adhesive 97. The shapes of the prism portions 95a and 95b are set so as to refract the light from the light emitting layer 77 of each corresponding pixel 5 to the opening 85 side.

  In the display device 1 having the above configuration, the display is controlled by causing the light emitting layer 77 to emit light for each pixel 5. The light emitting state of the light emitting layer 77 can be changed for each pixel 5 by controlling the current flowing through each organic layer 35 by each driving transistor 29.

As shown in FIG. 6, a control signal CS ₁ (h) is supplied to each scanning line GT ₁ (h). Similarly, the control signal CS ₂ (h) is supplied to each scanning line GT ₂ (h). The control signal CS ₁ (h) and the control signal CS ₂ (h) are supplied alternately. That is, the scan line GT ₁ (1), after the control signal CS ₁ (1) is supplied, the scan line GT ₂ (1) to the control signal CS ₂ (1) is supplied.

The image signal DS ₁ (j) is supplied as a parallel signal to each data line SI ₁ (j). Similarly, the image signal DS ₂ (j) is supplied as a parallel signal to each data line SI ₂ (j). The image signal DS ₁ (j) and the image signal DS ₂ (j) are supplied alternately. That is, the data line SI _{1 (1)} ~SI after the image signal _{DS 1 (1) ~DS 1 (} n) is supplied to the ₁ (n), the image data line _{SI 2 (1) ~SI 2 (} n) signal _{DS 2 (1) ~DS 2 (} n) are supplied.

As shown in FIG. 18, the control signal CS ₁ (h) and the control signal CS ₂ (h) are set to the Hi level selection potential only once in one frame period over a period t1 shorter than one frame period. Maintained. Only one of the control signal CS ₁ (h) and the control signal CS ₂ (h) can become the selection potential at a certain timing.

When the scanning line GT ₁ (h) is selected potential, the plurality of first pixels 5 ₁ of the selection transistor 27 corresponding to the scanning line GT ₁ (h) is turned ON. At this time, the data line _{SI 1 (1) ~SI 1 (} n) is supplied to the image signal _{DS 1 (1) ~DS 1 (} n) , via the selection transistor 27, the gate electrode portion 55a of the driving transistor 29 And supplied to the electrode portion 55b (FIG. 12). That is, in the first pixel 5 _1, the gate electrode portion 55a and the electrode portion 55b is a potential corresponding to the potential of the image signal DS ₁ (j).

Similarly, when the scanning line GT ₂ (h) is selected potential, the plurality of second pixels 5 ₂ of the select transistor 27 corresponding to the scanning line GT ₂ (h) is turned ON. At this time, the data lines _{SI 2 (1) ~SI 2 (} n) is supplied to the image signal _{DS 2 (1) ~DS 2 (} n) , via the selection transistor 27, the gate electrode portion 55a of the driving transistor 29 And supplied to the electrode portion 55b (FIG. 12). That is, in the second pixel 5 _2, the gate electrode portion 55a and the electrode portion 55b is a potential corresponding to the potential of the image signal DS ₂ (j).

At this time, a current corresponding to the potential of the gate electrode portion 55a of the drive transistor 29 flows from the power supply line PW (h) to the drain region 51c through the source region 51a and the channel region 51b.
Then, the current from the power supply line PW (h) flows through the organic layer 35 (FIG. 7) through the drain electrode 59 and the pixel electrode 33.
On the other hand, since charges are accumulated between the electrode portion 55b and the power supply line PW (h) (FIG. 13) and between the electrode portion 55b and the electrode portion 51d, the gate electrode portion 55a of the drive transistor 29 The potential is held for a certain period. As a result, current continues to flow through the organic layer 35 during the period in which the potential of the gate electrode portion 55a is maintained.

As described above, in the display device 1, a current corresponding to the potential of the image signal DS ₁ (j) or the image signal DS ₂ (j) flows through the organic layer 35, so that light from the light emitting layer 77 is imaged for each pixel 5. The luminance can be controlled in accordance with the potential of the signal DS ₁ (j). Thereby, the display device 1 can perform gradation display.
In the display device 1, each first pixel 5 ₁ and the second pixel 5 _2, the image signal DS ₁ and (j) the image signal DS ₂ and (j) can be supplied at different timings. Therefore, the image signal DS ₁ (j) corresponding to the first image and the image signal DS ₂ (j) corresponding to the second image can be processed separately. As a result, the processing for synthesizing the image signal DS ₁ (j) corresponding to the first image and the image signal DS ₂ (j) corresponding to the second image and supplying them at the same timing is omitted. Can do.

Here, as described above, the display device 1 includes the light shielding film 83 in which the opening 85 is provided for each pixel group 25. Light from the first pixel 5 ₁ of the light-emitting layer 77 is emitted toward the display surface 3 through the opening 85.
At this time, the light 111a emitted toward the display surface 3 side from the first pixel 5 _1, as shown a plurality of sets of pixel groups 25 and the light-shielding film 83 in FIG. 19 is a cross-sectional view schematically showing The first range 113 is reached through each opening 85.
Further, the light 111b emitted toward the display surface 3 side from the second pixels 5 _2, to a second range 115 through the openings 85. Note that the cross section shown in FIG. 19 corresponds to the cross section taken along the line AA in FIG.

From the first range 113, the light 111a from the _first pixel 51 can be visually recognized through the opening 85. From the second range 115, the light 111b from the _second pixel 52 can be viewed through the opening 85. When an eye point within the first range 113, a first image formed by the plurality of first light 111a from pixel 5 ₁ can be viewed. When an eye point within the second range 115, a second image formed by the plurality of second light 111b from pixel 5 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 113 and the second image is displayed in the second range 115 different from the first range 113. Can do.

  The first range 113 and the second range 115 have a range 117 that overlaps each other. From this range 117, the first image and the second image are visually recognized in a superimposed state. From the range 119a (hereinafter referred to as the appropriate viewing range 119a) excluding the range 117 from the first range 113, only the first image can be viewed. Further, only the second image can be visually recognized from the range 119b (hereinafter referred to as the appropriate viewing range 119b) obtained by excluding the range 117 from the second range 115.

Display device 1, the light 111a emitted from the plurality of first pixels 5 ₁ intersect at both ends of the first range 113, a plurality of second light 111b emitted from the pixel 5 ₂ second Are configured to intersect at both ends of the range 115. This can be realized by setting the interval Pa between the openings 85 adjacent in the X direction to be shorter than the interval Pb between the pixel groups 25 adjacent in the X direction.
Thus, the amounts of lights viewed from any viewpoint within preferred viewing range 119a, can be made equal among the first pixels 5 _1. Similarly, the amounts of lights viewed from any viewpoint within preferred viewing range 119b, can be made equal among the second pixels 5 _2.

  In the display device 1, the light shielding film 83 corresponds to the light shielding layer, the pixel electrode 33 corresponds to the first electrode, the common electrode 37 corresponds to the second electrode, the drive transistor 29 corresponds to the switching element, and the prism portion 95a. And 95b correspond to optical elements as prisms, the pixel 5r corresponds to a red pixel, the pixel 5g corresponds to a green pixel, the pixel 5b corresponds to a blue pixel, and the color filter 87r is a red filter. Correspondingly, the color filter 87g corresponds to a green filter, and the color filter 87b corresponds to a blue filter.

  In the display device 1, a light shielding film 83 is provided on the second substrate 81. That is, the light shielding film 83 is interposed between the first substrate 41 and the second substrate 81. For this reason, compared with the case where the light shielding film 83 is arrange | positioned on the outer side of the element substrate 11 and the sealing substrate 13, the distance between the some pixel 5 and the light shielding film 83 can be shortened. Therefore, it is possible to easily enlarge the appropriate viewing range 119a and the appropriate viewing range 119b in the directional display.

  In the display device 1, the power supply line PW extends in the X direction. For this reason, for example, compared with the case where the power supply line PW extends in the Y direction along between the pixels 5 adjacent in the X direction, the interval between the pixels 5 in the X direction can be easily reduced. Thereby, the pixel density in the X direction can be easily increased. As a result, high definition in directional display can be facilitated.

In the display device 1, a top emission type organic EL device in which light from the light emitting layer 77 is emitted from the display surface 3 through the sealing substrate 13 is employed.
Here, when a bottom emission type in which light from the light emitting layer 77 is emitted through the first substrate 41 of the element substrate 11 is adopted, the first substrate 41 is interposed between the light emitting layer 77 and the light shielding film 83. become. For this reason, in the bottom emission type, it is difficult to shorten the distance between the light emitting layer 77 and the light shielding film 83.
However, since the display device 1 adopts the top emission type, the distance between the light emitting layer 77 and the light shielding film 83 can be easily shortened.

  In the display device 1, the selection transistor 27 and the drive transistor 29 are provided on the bottom surface 15 side with respect to the light emitting layer 77. On the other hand, light from the light emitting layer 77 is emitted from the display surface 3 through the sealing substrate 13. That is, the selection transistor 27 and the drive transistor 29 do not hinder the light traveling from the light emitting layer 77 toward the display surface 3 side. Therefore, the utilization efficiency of light from the light emitting layer 77 can be easily improved. On the other hand, it is possible to easily increase the degree of freedom of the arrangement position of the selection transistor 27 and the drive transistor 29 in a plan view.

  In the display device 1, the resin layer 93 is interposed between the light emitting layer 77 and the light shielding film 83. The resin layer 93 can be easily adjusted in thickness as compared with brittle materials such as glass and quartz. For this reason, in the display device 1, it is possible to easily adjust the appropriate viewing range 119a and the appropriate viewing range 119b by adjusting the thickness of the resin layer 93.

  In the display device 1, prism portions 95 a and 95 b are provided on the resin layer 93. For this reason, the light from the light emitting layer 77 can be easily guided to each opening 85. Thereby, it is possible to further enhance the light utilization efficiency.

  In the display device 1, the plurality of light emitting layers 77 are divided into a light emitting layer 77 that emits R light for each pixel 5, a light emitting layer 77 that emits G light, and a light emitting layer 77 that emits B light. ing. For this reason, color display can be performed in directional display.

In the display device 1, a color filter 87 is provided for each opening 85. Each opening 85 corresponds to each pixel group 25. Therefore, it is possible to share the first pixel 5 ₁ and the second pixels 5 ₂ and to one of the color filter 87 constituting each pixel group 25.
In addition, since each color filter 87 is provided in each opening 85, the thickness of the display device 1 can be easily reduced.

  Further, in the display device 1, since the capacitive element 31 is provided between the first substrate 41 and the power supply line PW and overlaps the power supply line PW in a plan view, the area of each pixel 5 can be easily reduced. be able to. Thereby, it is possible to further increase the pixel density, and it is possible to further increase the definition in the directional display.

  In the display device 1, in each pixel 5, the selection transistor 27 and the drive transistor 29 are provided at positions facing each other across the power supply line PW in the Y direction in plan view. For this reason, the capacitor 31 can be easily provided between the selection transistor 27 and the drive transistor 29. As a result, the area of each pixel 5 can be easily reduced.

  Further, in the display device 1, the source region 51a, the channel region 51b, and the drain region 51c of the driving transistor 29 are arranged in the X direction. The source region 53a, the channel region 53b, and the drain region 53c of the selection transistor 27 are arranged in the X direction. For this reason, the region between the selection transistor 27 and the drive transistor 29 can be easily expanded. This makes it easier to provide the capacitor 31 between the selection transistor 27 and the drive transistor 29.

  In the display device 1, in the drive transistor 29, the island-like electrode 55 has the gate electrode portion 55 a and the electrode portion 55 b, and the first semiconductor layer 51 has the electrode portion 51 d. The electrode portion 55b and the electrode portion 51d face each other and overlap the power supply line PW in plan view. The electrode portion 55b is electrically connected to the drain region 53c of the selection transistor 27, and the electrode portion 51d is electrically connected to the power supply line PW. For this reason, a part of the capacitive element 31 can be configured in the electrode portion 55b, the electrode portion 51d, and the power supply line PW.

  On the other hand, the gate electrode portion 55 a of the island-shaped electrode 55 and the source region 51 a, the channel region 51 b, and the drain region 51 c of the first semiconductor layer 51 constitute the drive transistor 29. That is, in the display device 1, the driving transistor 29 and the capacitor 31 can be shared. As a result, the area of each pixel 5 can be further reduced, and high definition in directional display can be further facilitated.

  In the display device 1, the drain region 51c of the first semiconductor layer 51 is provided outside the power supply line PW in plan view. The drain region 51c of the first semiconductor layer 51 and each pixel electrode 33 are electrically connected outside the power supply line PW in plan view. Therefore, each driving transistor 29 and each pixel electrode 33 can be electrically connected without being obstructed by the power supply line PW.

In the display device 1, among a set of pixel groups 25 in the first pixel 5 ₁ and the second pixel 5 _2, the drain region 51c between the first semiconductor layer 51, sandwiching the power supply line PW in plan view Are located on opposite sides of each other. Therefore, it is possible to these of the first pixel 5 ₁ and between the second pixel 5 ₂ easily moved away drain region 51c between the first semiconductor layer 51. Therefore, it is possible to these of the first pixel 5 ₁ and the second pixel 5 between ₂ easily away a contact hole CH8 each other. Thus, in the first pixel 5 ₁ and the second pixel 5 ₂ thereof, it is possible to easily enlarge the area in a plan view of the contact holes CH8. As a result, it is possible to easily enlarge the area of each connection portion 69 in plan view, and to easily improve the electrical conduction in each connection portion 69.

In the display device 1, the scanning line GT ₁ is corresponds to the first pixel 5 _1, the scanning line GT ₂ are provided corresponding to the second pixel 5 _2. Therefore, a plurality of selection transistors 27 may be turned ON state at the first pixel 5 ₁ and the second pixel 5 different timings for each _2. Thus, for each first pixel 5 ₁ and the second pixel 5 _2, the image signal DS ₁ and (j) the image signal DS ₂ and (j) can be supplied at different timings. As a result, the image signal DS ₁ (j) corresponding to the first image and the image signal DS ₂ (j) corresponding to the second image can be processed separately.

In the display device 1, in a set of first in pixel group 25 of pixels 5 ₁ and the second pixel 5 _2, each of the select transistors 27 and the driving transistor 29 is a first pixel 5 ₁ and the second of these It is located between the data line SI ₁ and the data line SI ₂ corresponding to the _second pixel 5 ₂ . Therefore, it is possible to easily shorten the interval in these first pixel 5 ₁ and the second pixel 5 ₂ in the X direction.

In the display device 1, the power supply line PW straddles between the pixel groups 25 adjacent in the X direction. Between the pixel groups 25 adjacent in the X direction, two data lines SI ₁ and SI ₂ extend in the Y direction. The power supply line PW straddles these two data lines SI ₁ and SI ₂ in the X direction.
Here, a parasitic capacitance is easily formed between the two data lines SI ₁ and SI ₂ . However, in the display device 1, since the power supply line PW is across these two data lines SI ₁ and SI _2, between the power supply line PW and the data line SI _1, and the power supply line PW and the data lines SI ₂ Capacitances are easily formed between each of them. Therefore, electrical interference between these two data lines SI ₁ and SI ₂ can be easily reduced, and display quality can be improved.

In the display device 1, the contact hole CH 7 and the source electrode portion 65 are provided between the data lines SI ₁ and SI ₂ corresponding to the pixels 5 and the electrode portion 55 b of the island electrode 55 in plan view. Yes. For this reason, it is possible to easily reduce electrical interference between the capacitive element 31 and the data lines SI ₁ and SI ₂ , thereby improving display quality.

  Further, in the display device 1, the connection portion 69 and the contact hole CH8 of the pixel electrode 33 overlap the bank 71b in plan view. For this reason, the connection part 69 and the contact hole CH8 can be easily hidden by the bank 71b in a plan view.

  Further, in the display device 1, the auxiliary wiring 39 and the bank 71 overlap in plan view. For this reason, the auxiliary wiring 39 does not hinder the progress of light from each light emitting layer 77 toward the display surface 3 side. Therefore, a material having a light shielding property can be used for the auxiliary wiring 39. In addition, the thickness of the auxiliary wiring 39 can be increased. For this reason, the electrical conduction of the auxiliary wiring 39 can be improved.

In the display device 1, the width dimension in the X direction of the bank 71b is longer than the width dimension in the X direction of the bank 71a. Bank 71b is located on the first pixel 5 ₁ and the second pixel 5 between ₂ in the set of pixel groups 25. That is, the bank 71b overlaps each opening 85 in plan view.
Here, if the width dimension in the X direction of the bank 71b is increased, the range 117 in which the first image and the second image overlap in the directional display can be narrowed. Therefore, the display device 1 can easily enlarge the appropriate viewing range 119a and the appropriate viewing range 119b in the directional display.

  In the display device 1, the auxiliary wiring 39 is provided in a region overlapping the bank 71b in plan view. For this reason, the width dimension in the X direction of the auxiliary wiring 39 can be increased as compared with the configuration in which the auxiliary wiring 39 is provided in a region overlapping the bank 71a in plan view. As a result, the electrical conduction of the auxiliary wiring 39 can be further improved.

  In the display device 1, an N-channel TFT element is employed as the selection transistor 27, and a P-channel TFT element is employed as the drive transistor 29. However, the selection transistor 27 is not limited to an N-channel TFT element, and a P-channel TFT element can also be adopted. Further, the driving transistor 29 is not limited to a P-channel TFT element, and an N-channel TFT element can also be adopted.

  Further, in the display device 1, a configuration in which the drain region 53 c of the selection transistor 27 and the electrode portion 55 b of the driving transistor 29 are electrically connected is employed. However, a configuration between the selection transistor 27 and the driving transistor 29 is employed. Is not limited to this. A configuration in which a new capacitive element is interposed between the drain region 53 c of the selection transistor 27 and the electrode portion 55 b of the driving transistor 29 may be employed.

  Further, in the display device 1, the case of a so-called coating method in which the organic layer 35 is provided by applying a liquid organic material has been described as an example. However, the formation of the organic layer 35 is not limited to the coating method. Utilized vapor deposition can also be employed.

  In the display device 1, the so-called active matrix type in which the selection transistor 27 and the driving transistor 29 are provided for each pixel 5 has been described as an example. However, the display device 1 is not limited to this, and a passive matrix type can also be adopted. . In the display device 10 adopting the passive matrix type, as shown in FIG. 20, the element substrate 20 includes a first substrate 41, a plurality of first electrodes 131, an organic layer 35, a bank 71, and a plurality of first substrates. 2 electrodes 133. The display device 10 has the same configuration as the display device 1 except for the element substrate 20. Therefore, in the following, the same reference numerals are given to the components corresponding to the configuration of the display device 1, and the detailed description is omitted.

Each first electrode 131 extends in a band shape in the Y direction between the first substrate 41 and the organic layer 35. The plurality of first electrodes 131 are arranged in the X direction at intervals.
Each second electrode 133 extends in a strip shape in the X direction between the organic layer 35 and the sealing substrate 13. The plurality of second electrodes 133 are arranged in the X direction at intervals.
Each first electrode 131 and each second electrode 133 intersect each other with the organic layer 35 interposed therebetween. In the display device 10, the region of each pixel 5 can be defined as a region where the region surrounded by the bank 71, each first electrode 131, and each second electrode 133 overlap in plan view.

  In the display device 1 and the display device 10, a configuration in which the color filter 87 is provided for each opening 85 is employed, but the configuration is not limited thereto, and a configuration in which the color filter 87 is omitted may be employed. In the display device 1 and the display device 10, the plurality of light emitting layers 77 include a light emitting layer 77 that emits R light for each pixel 5, a light emitting layer 77 that emits G light, and a light emitting layer 77 that emits B light. Therefore, even if the color filter 87 is omitted, color display can be performed.

  In the display device 1 and the display device 10, the plurality of light emitting layers 77 includes a light emitting layer 77 that emits R light for each pixel 5, a light emitting layer 77 that emits G light, and a light emitting layer 77 that emits B light. However, the configuration of the display device 1 is not limited to this. As the display device 1, a configuration having a light emitting layer 77 that emits white light instead of the light emitting layer 77 that emits R, G, and B light may be employed. Since the display device 1 is provided with different color filters 87r, 87g, and 87b for each opening 85, color display can be performed even if the light from all the light emitting layers 77 is white.

In this case, in the display device 1 or the display device 10, the organic layer 35 can be provided in a series of states across the plurality of pixels 5. In the case where the organic layer 35 is provided in a state of being arranged in a series over a plurality of pixels 5, in the display device 1, the region of each pixel 5 is defined as a region where the pixel electrode 33 and the common electrode 37 overlap in plan view. Can be done.
Further, in the case where the organic layer 35 is provided in a state in which the organic layer 35 is arranged between the plurality of pixels 5, in the display device 10, as illustrated in FIG. It can be defined as a region where the electrode 133 overlaps.
In FIGS. 20 and 21, the area of each pixel 5 is hatched for easy understanding of the configuration.

In the display device 1 and the display device 10, the case where a plurality of sets of pixel groups 25 are arranged in a matrix along each of the X direction and the Y direction as illustrated in FIG. 5 is described as an example. The arrangement of the group of pixel groups 25 is not limited to this. As the arrangement of the plurality of sets of pixel groups 25, for example, as shown in FIG. For arrays shown in FIG. 22, a first pixel 5 ₁ shown in FIG. 4 the second and the pixel 5 _2, together are arranged alternately in the X direction, they are alternately arranged in the Y direction.

  In this case, in the display device 1 or the display device 10, each opening 85 of the light shielding film 83 is provided for each pixel group 25 as shown in FIG. Therefore, in the configuration in which a plurality of sets of pixel groups 25 are arranged in a zigzag manner in the Y direction, the plurality of openings 85 are also arranged in a zigzag manner in the Y direction. For this reason, compared with the case where a plurality of sets of pixel groups 25 are arranged in a matrix along each of the X direction and the Y direction, the distance between the adjacent openings 85 can be shortened. . As a result, it is possible to easily increase the resolution in the oblique direction in the display of each of the first image and the second image, and it is possible to further increase the definition in the directional display.

Further, in the display device 100 to which the configuration in which a plurality of sets of pixel groups 25 are arranged in a zigzag manner in the Y direction is applied to the display device 1, as shown in FIG. 24, the pixel groups 25 that are obliquely adjacent to the Y direction. The scanning lines GT ₁ and GT ₂ can be shared between them.
In the display device 1, the scanning line GT ₁ and the scanning line GT ₂ are provided for each pixel row 23. In contrast, it is possible to share the display device 100, one scan line GT ₁ or the scanning lines GT _2, the pixel row 23 adjacent in the Y direction. Therefore, in the display device 100 can be compared to the display device 1, to reduce the number of scan lines GT ₁ and the scanning line GT _2.

In the display device 100, the first pixel 5 ₁ and the second pixels 5 ₂ are included in one pixel column 21 (FIG. 3). Therefore, each data line SI provided corresponding to each pixel column 21 are not associated with each of the first pixel 5 ₁ and the second pixel 5 _2. That is, each data line SI is shared by the first pixel 5 ₁ and the second pixels 5 _2.

Note that the display device 100 may employ a configuration in which the color filter 87 is omitted. Even when the display device 100 adopts a configuration in which the color filter 87 is omitted, color display can be performed similarly to the display devices 1 and 10.
When the color filter 87 is omitted in the display device 100, the pixel column 21r, the pixel column 21g, and the pixel column 21b illustrated in FIG. 3 are repeatedly arranged in the X direction one by one in this order. It is preferable in that the conversion of the data array supplied to each data line SI ₁ and SI ₂ can be reduced.

In the configuration in which the display devices 1, 10 and 100 and the color filter 87 are omitted from the display devices 1, 10 and 100, the configuration in which the prism portions 95 a and 95 b are provided in the resin layer 93 has been described as an example. Is not limited to this. As shown in FIG. 25, the resin layer 93 may have a configuration in which a lens portion 141 is provided. In this case, a material having a refractive index larger than that of the resin layer 93 can be used as the material of the adhesive 97.
In the configuration shown in FIG. 25, the lens unit 141 corresponds to an optical element as a lens.

The above-described display devices 1, 10, and 100, and the configuration in which the color filter 87 is omitted from the display devices 1, 10, and 100 can be applied to 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 as the first image from the driver's seat side by the display unit 510 to which the display device 1, 10, or 100 or the configuration in which the color filter 87 is omitted is applied. Then, an image such as a movie can be visually recognized as the second image from the passenger seat side.
In addition, since the display device 1, 10, or 100, or a configuration in which the color filter 87 is omitted from the display device 510 is applied, the appropriate viewing range 119a and the appropriate viewing range 119b in the directional display can be easily enlarged. Can do.

Further, in the electronic device 500, the pixel density in the X direction can be easily increased in the configuration in which the display device 1, 10 or 100, or the color filter 87 is omitted from the display device 1, 10 or 100. It is done.
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 top view which shows the display apparatus in 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 embodiment. FIG. 3 is a plan view showing a part of a plurality of pixels in the embodiment. FIG. 5 is a plan view for explaining the arrangement of a plurality of sets of pixel groups in the embodiment. 1 is a diagram showing a circuit configuration of a display device according to an embodiment. Sectional drawing in the CC line | wire in FIG. The top view which shows the 1st semiconductor layer and 2nd semiconductor layer in embodiment. The top view showing the 1st semiconductor layer in the embodiment, the 2nd semiconductor layer, an island-like electrode, a scanning line, and a data line. The top view which shows the island-shaped electrode in an embodiment, a scanning line, and a data line. The top view which shows the contact hole in embodiment. The top view which shows the selection transistor in the embodiment, a drive transistor, a scanning line, a data line, a power supply line, a drain electrode, and a relay electrode. Sectional drawing in the EE line | wire in FIG. The enlarged view of the F section in FIG. The top view which shows the pixel electrode in embodiment. The top view which shows a part of bank in embodiment. The top view which shows the light shielding film and pixel group in embodiment. 6 is a timing chart of control signals supplied to each scanning line in the embodiment. FIG. 3 is a cross-sectional view schematically showing a plurality of sets of pixel groups and light shielding films in the embodiment. The disassembled perspective view which shows the main structures in the other example of the display apparatus in embodiment. The disassembled perspective view which shows the main structures in the further another example of the display apparatus in embodiment. The top view which shows the other example of the arrangement | sequence of the multiple groups of pixel group in embodiment. The top view which shows the other example of the light shielding film in embodiment. The figure which shows the circuit structure in another example of the display apparatus in embodiment. Sectional drawing which shows another example of the display apparatus in embodiment. The perspective view of the electronic device to which the display apparatus in this embodiment is applied. Sectional drawing explaining a prior art. Sectional drawing explaining a prior art.

Explanation of symbols

1,10,100 ... display, 3 ... display surface, 5,5r, 5g, 5b ... pixels, 5 ₁ ... first pixel, 5 ₂ ... second pixel, 7 ... display area, 11, 20 ... devices Substrate, 13 ... sealing substrate, 25 ... pixel group, 27 ... selection transistor, 29 ... drive transistor, 31 ... capacitive element, 33 ... pixel electrode, 35 ... organic layer, 37 ... common electrode, 39 ... auxiliary wiring, 41 ... First substrate 51 ... first semiconductor layer 51a ... source region 51b ... channel region 51c ... drain region 51d ... electrode part 53 ... second semiconductor layer 53a ... source region 53b ... channel region 53c ... Drain region, 55 ... island electrode, 55a ... gate electrode part, 55b ... electrode part, 57 ... gate electrode part, 59 ... drain electrode, 65 ... source electrode part, 67 ... connection part, 69 ... connection part, 71 ... bank 71a ... Bank 71b ... bank, 77 ... light emitting layer, 81 ... second substrate, 83 ... light shielding film, 85 ... opening, 87, 87r, 87g, 87b ... color filter, 93 ... resin layer, 95a, 95b ... prism part, 97 ... Adhesive 113 ... first range 115 ... second range 117 ... range 119a, 119b ... appropriate viewing range 131 ... first electrode 133 ... second electrode 141 ... lens part 500 ... electronic device , 510 ... display unit, CH1 to CH8 ... contact hole, M ... matrix, GT _1, GT ₂ ... scan lines, SI, SI _1, SI ₂ ... data line, PW ... power supply line.

Claims (10)

A first substrate having a region having a plurality of pixels ;
A light emitting layer provided on the first surface of the first substrate, the light emission of which is controlled in each pixel of the plurality of pixels;
A second substrate having a second surface opposite the first surface ;
A light shielding layer provided on the second surface of the second substrate ;
A sealant surrounding the region and disposed between the first substrate and the second substrate;
Have
The plurality of pixels include at least a first pixel that forms a first image and a second pixel that forms a second image;
The light-shielding layer passes light from the light-emitting layer of the first pixel through the second substrate through the first range, and from the light-emitting layer of the second pixel to the second substrate through the second substrate. 2. An electro-optical device characterized in that an opening for transmitting light in a range of 2 is provided.   The electro-optical device according to claim 1, wherein a resin layer is interposed between the light emitting layer and the light shielding layer.   A first electrode provided opposite to the light emitting layer between the first substrate and the light emitting layer;
  A second electrode provided opposite to the light emitting layer between the light emitting layer and the light shielding layer;
Have
  3. The electro-optical device according to claim 2, wherein the first substrate and the second substrate have the resin layer and the second electrode bonded to each other through an adhesive. A switching element that is provided corresponding to each of the pixels and switches supply and interruption of current flowing from one of the first electrode and the second electrode to the other of the first electrode and the second electrode through the light emitting layer; Have
The electro-optical device according to claim 3 , wherein the switching element is provided between the first substrate and the light emitting layer. The electro-optical device according to claim 2 , wherein the resin layer is provided with an optical element that refracts light from the light-emitting layer. The electro-optical device according to claim 5 , wherein the optical element is a prism. The electro-optical device according to claim 5 , wherein the optical element includes a lens. The plurality of pixels include
A red pixel having the light emitting layer emitting light exhibiting a red color;
A green pixel having the light emitting layer emitting light exhibiting a green color;
Bluish electro-optical device according to any one of claims 1 to 7, and blue-based pixel having a light emitting layer for emitting light, characterized in that it contains exhibiting color. A red filter that transmits light having a red color; and
A green filter that transmits light of a green color; and
Bluish electro-optical device according to any one of claims 1 to 8, characterized in that it has a, and blue-based filter that transmits light exhibiting a color. An electronic apparatus comprising the electro-optical device according to any one of claims 1 to 9 as a display unit.

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