JP2011048965A - Lighting system, electrooptical device and electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem of conventional electrooptical devices wherein the color of display tends to change. <P>SOLUTION: The electrooptical device includes a light-emitting panel provided with a plurality of EL elements 35, each of the EL elements 35 emits a light, and an image forming panel that has a plurality of pixels 11 separated and forms an image by selectively controlling the amount of light from the light-emitting panel, in the course of the light with respect to each of the pixels 11. The EL element 35 is formed, such that an organic layer including a light-emitting layer is interposed between a pixel electrode and a common electrode, and among the plurality of EL elements 35 corresponding to one electrode 11, an EL element 35L, an EL element 35M and an EL element 35S having different sizes for light-emitting areas are included. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an illumination device, an electro-optical device, an electronic apparatus, and the like.

Conventionally, a liquid crystal device is known as one of electro-optical devices. Among liquid crystal devices, there is a reflective liquid crystal device capable of performing reflective display. Some reflective liquid crystal devices are provided with a front light.
Conventionally, a reflection type liquid crystal device having a front light is known in which the amount of light from the front light is controlled according to the illuminance by both the light from the front light and the outside light (for example, Patent Documents). 1).

Japanese Patent No. 40622254 JP 2006-154402 A

In a reflective liquid crystal device having a front light, not only the light from the front light but also other external light contributes to the display. For this reason, when the intensity of external light changes, the display luminance may change.
On the other hand, in the liquid crystal device described in Patent Document 1, the amount of light from the front light is controlled according to the illuminance by both the light from the front light and the external light, so the intensity of the external light changes. Even so, a constant display luminance can be maintained.

However, in the liquid crystal device described in Patent Document 1, when the spectrum of external light changes, the color of the displayed image tends to change.
For example, the external light includes sunlight, incandescent light, and fluorescent light. Sunlight, incandescent light, fluorescent light, etc. have different spectra. For this reason, the images observed under each external light may have different colors. For example, since the light of the incandescent lamp contains many components on the long wavelength side in the visible light region, an image observed under the light of the incandescent lamp may be reddish.
That is, the conventional electro-optical device has a problem that the hue in display is easily changed.

  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] Having a plurality of light-emitting elements, the light-emitting elements have a configuration in which an organic layer including a light-emitting layer is interposed between electrodes facing each other. Includes a plurality of red elements that emit red light, a plurality of green elements that emit green light, and a plurality of blue elements that emit blue light The plurality of red-based elements include a plurality of light-emitting elements having different light-emitting areas, and the plurality of green-based elements include a plurality of light-emitting areas having different sizes. The lighting device including the light emitting element, wherein the plurality of blue elements include a plurality of the light emitting elements having different light emitting areas.

The lighting device of this application example has a plurality of light emitting elements. The light emitting element has a configuration in which an organic layer including a light emitting layer is interposed between electrodes facing each other.
The plurality of light emitting elements include a plurality of red elements, a plurality of green elements, and a plurality of blue elements. Each of the plurality of red elements emits red light. Each of the plurality of green elements emits green light. Each of the plurality of blue elements emits light of a blue color.
The plurality of red elements include a plurality of light emitting elements having different light emitting areas. The plurality of green elements include a plurality of light emitting elements having different light emitting areas. The plurality of blue elements include a plurality of light emitting elements having different light emitting areas.
In this illuminating device, by controlling the light emission of the light emitting element for each size of the light emitting area, the amount of light from the plurality of light emitting elements can be changed for each of the red element, the green element, and the blue element. it can. In this illumination device, it is possible to easily adjust the color of illumination.

  Application Example 2 In the illumination device described above, light for detecting an intensity of external light different from light from the light emitting element for each of the red color, the green color, and the blue color A lighting device comprising a detection element.

  In this application example, the intensity of external light can be detected for each of a red color, a green color, and a blue color. Thereby, for example, the hue of illumination can be adjusted based on the intensity of external light for each detected color.

  Application Example 3 In the above-described illumination device, the light detection element corresponding to the red color is a red filter that transmits the red light, and the red filter that is transmitted through the red filter. A light receiving element that outputs a signal having a magnitude corresponding to the amount of light, and the light detecting element corresponding to the green color transmits the green light A light-receiving element that outputs a signal having a magnitude corresponding to the amount of light transmitted through the green filter, and the light detection element corresponding to the blue color is A blue filter that transmits light of a blue color, and a light receiving element that outputs a signal having a magnitude corresponding to the amount of light transmitted through the blue filter. A lighting device.

  In this application example, it is possible to configure a light detection element corresponding to each of a red color, a green color, and a blue color.

  Application Example 4 A plurality of light emitting elements are provided, and a light emitting unit that emits light for each of the light emitting elements and a plurality of pixels are divided, and an amount of light from the light emitting unit is set in the course of the light in the pixels. An image forming unit that forms an image by selectively controlling each, and the light emitting element has a configuration in which an organic layer including a light emitting layer is interposed between electrodes facing each other, The plurality of pixels include a red pixel that receives red light from the light emitting element, a green pixel that receives green light from the light emitting element, and a blue color from the light emitting element. A blue pixel that receives light, and each of the red pixel, the green pixel, and the blue pixel includes a plurality of the light emitting elements corresponding to the one pixel. The plurality of light emitting elements corresponding to one pixel have a light emitting area size. Mutually different light emitting elements are included, the electro-optical device, characterized in that.

The electro-optical device of this application example includes a light emitting unit and an image forming unit.
The light emitting unit is provided with a plurality of light emitting elements. The light emitting unit emits light for each light emitting element. The light emitting element has a configuration in which an organic layer including a light emitting layer is interposed between electrodes facing each other.
A plurality of pixels are sectioned in the image forming unit. The image forming unit forms an image by selectively controlling the amount of light from the light emitting unit for each pixel in the course of the light.
The plurality of pixels include a red pixel, a green pixel, and a blue pixel. The red pixel receives light of red color from the light emitting element. The green pixel receives green light from the light emitting element. The blue pixel receives light of a blue color from the light emitting element.
In each of the red pixel, the green pixel, and the blue pixel, a plurality of light emitting elements correspond to one pixel. A plurality of light emitting elements corresponding to one pixel includes a plurality of light emitting elements having different light emitting areas.
In this electro-optical device, light emission of the light emitting element can be controlled for each size of the light emitting region. For this reason, the amount of light received by each of the red pixel, the green pixel, and the blue pixel can be changed for each of the red pixel, the green pixel, and the blue pixel. Thereby, it is possible to easily adjust the hue of the image. As a result, it is possible to easily suppress the change in the hue of the image due to the change in the spectrum of the external light.

  Application Example 5 In the above electro-optical device, the intensity of external light different from the light from the light emitting unit is detected for each of the red color, the green color, and the blue color. An electro-optical device having a light detection element.

  In this application example, the intensity of external light can be detected for each of a red color, a green color, and a blue color. Thereby, for example, the hue of the image can be adjusted based on the intensity of the external light for each detected color.

  Application Example 6 In the above electro-optical device, the light detection element corresponding to the red color transmits the red color filter that transmits the red color light and the red color filter. A light receiving element that outputs a signal having a magnitude corresponding to the amount of light, and the light detecting element corresponding to the green color transmits green light of the green color. And a light receiving element that outputs a signal having a magnitude corresponding to the amount of light transmitted through the green filter, and the light detection element corresponding to the blue color is: A blue filter that transmits the light of the blue color, and a light receiving element that outputs a signal having a magnitude corresponding to the amount of the light transmitted through the blue filter. An electro-optical device.

  In this application example, it is possible to configure a light detection element corresponding to each of a red color, a green color, and a blue color.

  Application Example 7 In the electro-optical device described above, the light-emitting unit and the image forming unit face each other.

  In this application example, since the light emitting unit and the image forming unit face each other, it is possible to easily irradiate the image forming unit with light from the light emitting unit.

  Application Example 8 In the electro-optical device described above, the image forming unit has light reflectivity for reflecting irradiated light, and the path of the light from the light emitting unit is the image. An electro-optical device, wherein the electro-optical device is bent due to light reflectivity at a forming portion.

  In this application example, the image forming unit has light reflectivity that reflects the irradiated light. In this electro-optical device, the path of light from the light emitting unit is bent by the light reflectivity at the image forming unit. Thereby, an image can be displayed using the reflected light obtained by reflecting the light from the light emitting unit by the image forming unit.

  Application Example 9 In the electro-optical device described above, the image forming unit includes a pair of electrodes that form an electric field and a liquid crystal interposed between the pair of electrodes. apparatus.

  In this application example, the image forming unit includes a pair of electrodes that form an electric field and a liquid crystal interposed between the pair of electrodes. Accordingly, the electro-optical device can be configured using the liquid crystal device.

  Application Example 10 The above electro-optical device includes an image control unit that controls the image forming unit, and a light emission control unit that controls the light emitting unit, and the image control unit displays the image. The period during which the image forming unit forms the image and allows the light emitting elements to emit light is updated for each update period, and is set to a different period for each size of the light emitting region in each update period. The light emission control unit selectively selects a light emitting state and a stopped state of the light emitting elements that are allowed to emit light for each light emitting element in each of the periods set for each size of the light emitting region. An electro-optical device, characterized in that

The electro-optical device of this application example includes an image control unit that controls the image forming unit and a light emission control unit that controls the light emitting unit.
The image control unit causes the image forming unit to form an image while updating the image every update period.
In this electro-optical device, the period during which light emission of the plurality of light emitting elements is permitted is set to a different period for each size of the light emitting region in each update period.
The light emission control unit selectively controls, for each light emitting element, the light emitting state and the stopped state of the light emitting element permitted to emit light in each of the periods set for each size of the light emitting region.
With the above configuration, in each update period, the plurality of light emitting elements can be selectively caused to emit light for each size of the light emitting region and for each light emitting element.

  Application Example 11 In the electro-optical device described above, in the light-emitting portion, the reflection that reflects at least part of the light from the light-emitting layer to the light-emitting layer side on the side opposite to the path of the light-emitting layer. A layer is provided for each light emitting element, and the distance between the light emitting layer and the reflective layer is different for each of the red color, the green color, and the blue color. An electro-optical device.

In this application example, a reflective layer is provided for each light emitting element in the light emitting unit. The reflective layer is provided on the side opposite to the path of the light emitting layer. The reflective layer reflects at least part of the light from the light emitting layer to the light emitting layer side. With this configuration, it is possible to easily strengthen the light traveling from the light emitting layer toward the path side and the light exiting the light emitting layer, reflected by the reflective layer, and traveling toward the path side.
In this electro-optical device, the distance between the light emitting layer and the reflective layer is different for each of a red color, a green color, and a blue color. For this reason, the wavelength of the light to be enhanced among the light of various wavelengths included in the light from the light emitting layer can be made different for each of the red color, the green color, and the blue color. Accordingly, the color of light from the light emitting element can be made different for each of a red color, a green color, and a blue color.

  Application Example 12 In the electro-optical device, the red color, the green color, and the green color for each of the red pixel, the green pixel, and the blue pixel between the light emitting element and the pixel. An electro-optical device comprising a color filter that transmits light of a color corresponding to each of a system color and the blue color.

  In this application example, light of a color corresponding to each of a red color, a green color, and a blue color for each of a red pixel, a green pixel, and a blue pixel between the light emitting element and the pixel. The color filter which permeate | transmits is provided. Thereby, the purity of the color of light from the light emitting element can be easily increased.

  Application Example 13 In the electro-optical device, the light emitting element corresponding to the red pixel includes the light emitting layer that emits light of the red color, and corresponds to the green pixel. The light emitting element includes the light emitting layer that emits the green light, and the light emitting element corresponding to the blue pixel includes the light emitting layer that emits the blue light. An electro-optical device characterized by that.

  In this application example, the plurality of light emitting elements emits light of colors corresponding to the red color, the green color, and the blue color for each of the red pixel, the green pixel, and the blue pixel. Has a layer. Thereby, it is possible to emit light of a color corresponding to each of the red pixel, the green pixel, and the blue pixel from each of the plurality of light emitting elements.

  Application Example 14 Electronic equipment having the electro-optical device described above.

The electronic apparatus of this application example includes an electro-optical device. The electro-optical device includes a light emitting unit and an image forming unit.
The light emitting unit is provided with a plurality of light emitting elements. The light emitting unit emits light for each light emitting element. The light emitting element has a configuration in which an organic layer including a light emitting layer is interposed between electrodes facing each other.
A plurality of pixels are sectioned in the image forming unit. The image forming unit forms an image by selectively controlling the amount of light from the light emitting unit for each pixel in the course of the light.
The plurality of pixels include a red pixel, a green pixel, and a blue pixel. The red pixel receives light of red color from the light emitting element. The green pixel receives green light from the light emitting element. The blue pixel receives light of a blue color from the light emitting element.
In each of the red pixel, the green pixel, and the blue pixel, a plurality of light emitting elements correspond to one pixel. A plurality of light emitting elements corresponding to one pixel includes a plurality of light emitting elements having different light emitting areas.
In this electro-optical device, light emission of the light emitting element can be controlled for each size of the light emitting region. For this reason, the amount of light received by each of the red pixel, the green pixel, and the blue pixel can be changed for each of the red pixel, the green pixel, and the blue pixel. Thereby, it is possible to easily adjust the hue of the image. As a result, it is possible to easily suppress the change in the hue of the image due to the change in the spectrum of the external light.
The electronic apparatus has the electro-optical device. For this reason, in this electronic apparatus, it is possible to easily suppress the change in the hue of the image due to the change in the spectrum of the external light in the electro-optical device.

The perspective view which shows the main structures of the display apparatus in 1st Embodiment. Sectional drawing in the AA in FIG. FIG. 3 is a plan view showing a part of a plurality of pixels of the image forming panel in the embodiment. The equivalent circuit diagram of the liquid crystal panel in this embodiment. The top view which shows a part of several EL element of the light emission panel in this embodiment. FIG. 6 is a plan view showing a part of a plurality of pixels and a part of a plurality of EL elements in the present embodiment. The figure which shows the circuit structure of the light emission panel in this embodiment. Sectional drawing in the CC line | wire in FIG. The enlarged view of the EL element in FIG. Sectional drawing which shows typically the photon detection part in this embodiment. The block diagram which shows the main structures of the display apparatus in this embodiment. FIG. 6 is a diagram for explaining a polarization state in the image forming panel according to the present embodiment. Sectional drawing when the display panel in 2nd Embodiment is cut | disconnected by the cutting line equivalent to the CC line | wire in FIG. FIG. 14 is an enlarged view of the EL element in FIG. 13. Sectional drawing when the display panel in 3rd Embodiment is cut | disconnected by the cutting line equivalent to the CC line | wire in FIG. Sectional drawing when the display panel in 4th Embodiment is cut | disconnected by the cutting line equivalent to the CC line | wire in FIG. The perspective view of the electronic device to which the display apparatus in this embodiment is applied.

Embodiments will be described with reference to the drawings, taking as an example a display device using an organic EL device and a liquid crystal device. The organic EL device and the liquid crystal device are each one of electro-optical devices.
As shown in FIG. 1, the display device 1 according to the first embodiment includes a display panel 3, a control unit 5, and a light detection unit 6.
The display panel 3 includes an image forming panel 7 and a light emitting panel 9.

A plurality of pixels 11 are set on the image forming panel 7. The plurality of pixels 11 are arranged in the display region 12 in the X direction and the Y direction in the figure, and constitute a matrix M in which the X direction is the row direction and the Y direction is the column direction.
Here, in the present embodiment, the X direction is a direction in which scanning lines described later extend. The Y direction is a direction that intersects the X direction in plan view. In the present embodiment, the Y direction is also a direction in which signal lines to be described later extend, and is orthogonal to the X direction in plan view.

In the display device 1, the image forming panel 7 can display an image on the display surface 13 by selectively reflecting the light emitted from the light emitting panel 9 to the light emitting panel 9 for each pixel 11. The display area 12 is an area where an image can be formed. In FIG. 1, the pixels 11 are exaggerated and the number of the pixels 11 is reduced for easy understanding of the configuration.
The image forming panel 7 includes a liquid crystal panel 15, a retardation plate 17, and a polarizing plate 19, as shown in FIG. 2, which is a cross-sectional view taken along line AA in FIG. 1.
The liquid crystal panel 15 includes a drive element substrate 21, a counter substrate 23, a liquid crystal 25, and a sealing material 27. In the present embodiment, a reflective liquid crystal panel is employed as the liquid crystal panel 15. The liquid crystal panel 15 can perform reflective display by reflecting light incident on the liquid crystal 25 from the display surface 13 side through the counter substrate 23 toward the counter substrate 23 side.

On the display surface 13 side, that is, the liquid crystal 25 side, the driving element substrate 21 is provided with a switching element, which will be described later, corresponding to each of the pixels 11.
The counter substrate 23 faces the drive element substrate 21 on the display surface 13 side of the drive element substrate 21 and is provided with a gap between the drive element substrate 21. The counter substrate 23 is provided with a common electrode, which will be described later, on the bottom surface 29 side, that is, the liquid crystal 25 side, which is a surface corresponding to the back surface of the display surface 13 in the display panel 3.

The liquid crystal 25 is interposed between the drive element substrate 21 and the counter substrate 23, and is interposed between the drive element substrate 21 and the counter substrate 23 by a sealing material 27 that surrounds the display region 12 inside the periphery of the liquid crystal panel 15. It is sealed. In the present embodiment, a TN (Twisted Nematic) type is adopted as the liquid crystal 25.
The phase difference plate 17 is provided on the display surface 13 side of the counter substrate 23, that is, on the opposite side of the liquid crystal 25 side. In the present embodiment, the phase difference plate 17 gives a half-wave phase difference to incident light.
The polarizing plate 19 is provided closer to the display surface 13 than the retardation plate 17. The polarizing plate 19 has a transmission axis. The polarizing plate 19 can transmit light having a polarization axis in the direction of the transmission axis.

  The light emitting panel 9 is provided closer to the display surface 13 than the polarizing plate 19, and includes an element substrate 31, a sealing substrate 33, a plurality of EL (Electro Luminescence) elements 35, an adhesive 37, and a sealing material 39. And have. The light emitting panel 9 emits light from the plurality of EL elements 35 to the bottom surface 29 side through the sealing substrate 33.

The element substrate 31 is provided with a plurality of EL elements 35 on the bottom surface 29 side.
The sealing substrate 33 is provided in a state of facing the element substrate 31 on the bottom surface 29 side with respect to the element substrate 31. The element substrate 31 and the sealing substrate 33 are bonded via an adhesive 37. In the display device 1, the EL element 35 is covered with an adhesive 37 from the bottom surface 29 side.
Further, the element substrate 31 and the sealing substrate 33 are sealed with a sealing material 39 that surrounds the display region 12 inside the periphery of the light emitting panel 9. That is, in the display device 1, the EL element 35 and the adhesive 37 are sealed with the element substrate 31, the sealing substrate 33, and the sealing material 39.

Incidentally, in the image forming panel 7, as shown in FIG. 3, a plurality of pixels 11 arranged in the Y direction form one pixel column 51. A plurality of pixels 11 arranged along the X direction form one pixel row 53. From this point of view, the X direction can also be regarded as the direction in which the pixel row 53 extends. The Y direction can also be regarded as the direction in which the pixel column 51 extends.
Further, as shown in FIG. 4, the liquid crystal panel 15 includes a plurality of scanning lines Te, a plurality of signal lines Se, a scanning line driving circuit 55, and a signal line driving circuit 57.
In the following description, when each of the plurality of scanning lines Te and the plurality of signal lines Se is identified, the notation of the scanning line Te (n) and the notation of the signal line Se (m) are used. Each of n and m is a variable that can take an integer of 1 or more.
The plurality of scanning lines Te are connected to the scanning line driving circuit 55. The plurality of signal lines Se are connected to the signal line drive circuit 57.

The plurality of scanning lines Te and the plurality of signal lines Se are wired in a grid pattern. The plurality of scanning lines Te extend along the X direction while being spaced from each other in the Y direction. The plurality of signal lines Se extend along the Y direction while being spaced from each other in the X direction. Each pixel 11 is set corresponding to the intersection of each scanning line Te and each signal line Se.
Each signal line Se corresponds to a plurality of pixels 11 arranged along the Y direction, that is, each pixel column 51. Each scanning line Te corresponds to a plurality of pixels 11 arranged along the X direction, that is, each pixel row 53.
The liquid crystal panel 15 includes a TFT (Thin Film Transistor) element 61 that is one of switching elements, a pixel electrode 63, and a common electrode 65 for each pixel 11. Note that the common electrode 65 is provided in a series of states across the plurality of pixels 11 constituting the matrix M. That is, the common electrode 65 is provided in a region overlapping the plurality of pixels 11 constituting the matrix M in plan view, and functions in common across the plurality of pixels 11.

The gate electrode of the TFT element 61 is electrically connected to the corresponding scanning line Te. The source electrode of the TFT element 61 is electrically connected to the corresponding signal line Se. In each pixel 11, the drain electrode of the TFT element 61 is electrically connected to the pixel electrode 63.
In each pixel 11, the pixel electrode 63 and the common electrode 65 constitute a pair of electrodes that form an electric field between the pixel electrode 63 and the common electrode 65. The liquid crystal 25 (FIG. 2) is interposed between the pixel electrode 63 and the common electrode 65. In the present embodiment, the pixel electrode 63 and the common electrode 65 are opposed to each other.
The TFT element 61 is turned on when a selection signal is supplied to the scanning line Te connected to the TFT element 61. At this time, a data signal is supplied from the signal line Se connected to the TFT element 61, and the pixel electrode 63 is maintained at a potential corresponding to the magnitude of the data signal. At this time, if the common electrode 65 is kept at a potential different from the potential of the pixel electrode 63, a potential difference is generated between the pixel electrode 63 and the common electrode 65. Thereby, an electric field can be generated between the pixel electrode 63 and the common electrode 65 for each pixel 11.

In the light emitting panel 9, the plurality of EL elements 35 are arranged in the X direction and the Y direction, as shown in FIG.
Here, the color of the light emitted from the light emitting panel 9 includes a plurality of types of colors. The plurality of types of colors are divided in units of EL elements 35. That is, the plurality of EL elements 35 are classified for each color type. In the present embodiment, the plurality of types of colors include red (R), green (G), and blue (B). In the present embodiment, the color of light emitted from the light emitting panel 9 toward the image forming panel 7 is set to any of R, G, and B for each EL element 35 as shown in FIG. That is, in the present embodiment, each of the plurality of EL elements 35 is associated with one of R, G, and B types.
In the following description, the EL element 35R, the EL element 35G, and the EL element 35B are used to identify the associated color type for the EL element 35.

  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 bluish green and yellowish 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 light emitting panel 9, a plurality of EL elements 35 arranged along the Y direction constitute one element row 71. A plurality of EL elements 35 arranged along the X direction form one element row 73.
Each of the plurality of EL elements 35 constituting one element row 71 has an associated color type set to one of R, G, and B. That is, the light emitting panel 9 includes an element row 71R in which a plurality of EL elements 35R are arranged in the Y direction, an element row 71G in which the plurality of EL elements 35G are arranged in the Y direction, and a plurality of EL elements 35B arranged in the Y direction. And an element row 71B. In the present embodiment, the element row 71R, the element row 71G, and the element row 71B are repeatedly arranged along the X direction.
In the following, the notation of the element row 71 and the notation of the element row 71R, the element row 71G, and the element row 71B are appropriately used.

The plurality of EL elements 35 include three types of EL elements 35L, EL elements 35M, and EL elements 35S having different light emitting areas. Of the three types of EL element 35L, EL element 35M, and EL element 35S, the size of the light emitting region of the EL element 35L is the largest. Next, the size of the light emitting region of the EL element 35M is large. The size of the light emitting region of the EL element 35S is the smallest.
The three types of EL elements 35L, EL elements 35M, and EL elements 35S are arranged in a cyclically repeated manner in the Y direction.
In the present embodiment, the three EL elements 35L, EL elements 35M, and EL elements 35S that are continuously arranged in the Y direction constitute one set of composite elements 75.

The type of the plurality of EL elements 35 is set to one of the EL element 35L, the EL element 35M, and the EL element 35S for each element row 73. That is, the light emitting panel 9 includes an element row 73L in which a plurality of EL elements 35L are arranged in the X direction, an element row 73M in which a plurality of EL elements 35M are arranged in the X direction, and a plurality of EL elements 35S arranged in the X direction. Element row 73S.
In the following, the notation of the element row 73 and the notation of the element row 73L, the element row 73M, and the element row 73S are appropriately used.

In the display panel 3, the plurality of pixels 11 of the image forming panel 7 and the plurality of EL elements 35 of the light-emitting panel 9 are overlapped in plan view as shown in FIG. In the display panel 3, one set of composite elements 75 is associated with one pixel 11.
The area of one pixel 11 is set to a size that includes one set of composite elements 75. In the present embodiment, the area of the pixel 11 is set to be larger than the area of the pair of composite elements 75.

The light-emitting panel 9 includes a pixel electrode 81, a functional layer 83, and a common electrode 85 for each EL element 35, as shown in FIG.
The pixel electrode 81 and the common electrode 85 constitute a pair of electrodes having the pixel electrode 81 as an anode and the common electrode 85 as a cathode.
The functional layer 83 interposed between each pixel electrode 81 and the common electrode 85 includes a light emitting layer to be described later. In the functional layer 83, the light emitting layer emits light due to the current generated between the pixel electrode 81 and the common electrode 85.
The light-emitting panel 9 includes a connection selection circuit 86, a connection selection circuit 87, a plurality of common lines 88, and a plurality of power supply lines 89.

The plurality of common lines 88 are respectively connected to the connection selection circuit 86 and extend in the X direction with a space therebetween in the Y direction. The common line 88 is provided corresponding to the element row 73. Hereinafter, the common line 88 corresponding to the element row 73L may be referred to as a common line 88L. Similarly, the common line 88 corresponding to the element row 73M may be expressed as a common line 88M, and the common line 88 corresponding to the element row 73S may be expressed as a common line 88S. Hereinafter, the notation of the common line 88 and the notation of the common line 88L, the common line 88M, and the common line 88S are appropriately used.
The common electrode 85 is connected to the corresponding common line 88 for each element row 73. In the element row 73L, the common electrode 85 is connected to the common line 88L. Similarly, in the element row 73M, the common electrode 85 is connected to the common line 88M, and in the element row 73S, the common electrode 85 is connected to the common line 88S.

The plurality of power supply lines 89 are respectively connected to the connection selection circuit 87 and extend in the Y direction with a space therebetween in the X direction. The power supply line 89 is provided corresponding to the element row 71. In the following, the power supply line 89 corresponding to the element row 71R may be referred to as a power supply line 89R. Similarly, the power supply line 89 corresponding to the element column 71G may be expressed as a power supply line 89G, and the power supply line 89 corresponding to the element column 71B may be expressed as a power supply line 89B. In the following, the notation of the power supply line 89 and the notation of the power supply line 89R, the power supply line 89G, and the power supply line 89B are appropriately used.
The pixel electrode 81 is connected to the corresponding power supply line 89 for each element column 71. In the element column 71R, the pixel electrode 81 is connected to the power supply line 89R. Similarly, in the element column 71G, the pixel electrode 81 is connected to the power supply line 89G, and in the element column 71B, the pixel electrode 81 is connected to the power supply line 89B.

  A selection signal described later is input to the connection selection circuit 86 from the controller 5 (FIG. 1). The connection selection circuit 86 sequentially connects the common line 88 to the ground for each of the common line 88L, the common line 88M, and the common line 88S based on the selection signal. When the common line 88L is connected to the ground, the common line 88M and the common line 88S are each kept in an electrically floating state. Similarly, when the common line 88M is connected to the ground, the common line 88L and the common line 88S are kept in an electrically floating state, and when the common line 88S is connected to the ground, the common line 88L and the common line 88L are shared. Line 88M is kept electrically floating.

A connection signal described later is input to the connection selection circuit 87 from the control unit 5 (FIG. 1). The connection selection circuit 87 selectively supplies power to the plurality of power supply lines 89 based on the connection signal. The connection signal includes information instructing power supply or interruption for each power line 89. As a result, the power supply line 89 to which power is to be supplied is selected from the plurality of power supply lines 89. That is, in the present embodiment, supply or interruption of power is selected for each power line 89.
Current flows from the pixel electrode 81 through the functional layer 83 to the common electrode 85 through the EL element 35 between the common line 88 connected to the ground and the power supply line 89 selected to supply power. Then, the light emitting layer included in the functional layer 83 emits light by current flowing through the functional layer 83. In the present embodiment, the plurality of EL elements 35 can emit light for each element row 73L, element row 73M, and element row 73S.
The light emitting panel 9 (FIG. 2) is one of top emission type organic EL devices in which light from the light emitting layer in the EL element 35 is emitted to the image forming panel 7 side through the sealing substrate 33.

Here, the configuration of the display panel 3 will be described in detail.
The drive element substrate 21 of the liquid crystal panel 15 includes a first substrate 91 as shown in FIG. 8 which is a cross-sectional view taken along the line CC in FIG. The first substrate 91 is made of a light-transmitting material such as glass or quartz, for example, and includes a first surface 92a directed to the display surface 13 side, and a second surface 92b directed to the bottom surface 29 side. ,have.
A driving element layer 93 is provided on the first surface 92 a of the first substrate 91. The driving element layer 93 includes the TFT element 61, the scanning line Te, and the signal line Se shown in FIG.

A pixel electrode 63 is provided for each pixel 11 on the display surface 13 side of the drive element layer 93. As the pixel electrode 63, for example, a material having high conductivity and high light reflectivity such as gold, silver, and aluminum can be adopted. In this embodiment, aluminum is adopted as the material of the pixel electrode 63. In the present embodiment, the pixel electrode 63 also has a function as a reflective film.
An alignment film 95 that covers the pixel electrode 63 from the display surface 13 side is provided on the display surface 13 side of the pixel electrode 63 and the drive element layer 93. As the alignment film 95, for example, a light transmissive material such as polyimide may be employed. Note that the alignment film 95 is subjected to an alignment process such as a rubbing process on the display surface 13 side.

The counter substrate 23 includes a second substrate 97 and a counter layer 99. The second substrate 97 is made of a light transmissive material such as glass or quartz, for example, and has an outward surface 98a directed to the display surface 13 side and an opposing surface 98b directed to the bottom surface 29 side. is doing.
The facing layer 99 is provided on the facing surface 98 b of the second substrate 97. The counter layer 99 includes an insulating film 101, a common electrode 65, and an alignment film 103.
As a material of the insulating film 101, for example, an inorganic material such as silicon oxide or silicon nitride, or an organic material such as a resin having light transmissivity can be employed.

The common electrode 65 is provided on the bottom surface 29 side of the insulating film 101. As the material of the common electrode 65, for example, a light transmissive material such as ITO (Indium Tin Oxide) or indium zinc oxide (Indium Zinc Oxide) can be adopted. In this embodiment, ITO is adopted as a material for the common electrode 65.
As described above, the common electrode 65 is provided in a series of states across the plurality of pixels 11, and functions in common across the plurality of pixels 11.
In the present embodiment, the region of the pixel 11 may be defined as a region where one pixel electrode 63 and the common electrode 65 overlap in plan view.

The alignment film 103 is provided on the bottom surface 29 side of the common electrode 65. The common electrode 65 is covered with the alignment film 103 from the bottom surface 29 side. As the material of the alignment film 103, for example, a light transmissive material such as polyimide may be employed. The alignment film 103 is subjected to an alignment process such as a rubbing process on the bottom surface 29 side.
In addition, as the configuration of the counter substrate 23, a configuration in which a light absorption layer that partitions the region of each pixel 11 is provided may be employed. In this case, the light absorption layer is provided on the facing surface 98b. With this configuration, it is possible to easily improve the contrast in display. As a material of the light absorption layer, for example, a resin containing a material having a high light absorption property such as carbon black or chromium can be employed.

The liquid crystal 25 interposed between the drive element substrate 21 and the counter substrate 23 is interposed between the alignment film 95 and the alignment film 103.
In the present embodiment, the sealing material 27 shown in FIG. 2 is sandwiched between the first surface 92a of the first substrate 91 and the facing surface 98b of the second substrate 97 shown in FIG. That is, in the liquid crystal panel 15, the liquid crystal 25 is held by the first substrate 91 and the second substrate 97. The sealing material 27 may be provided between the alignment film 95 and the alignment film 103. In this case, the liquid crystal 25 can be regarded as being held on the drive element substrate 21 and the counter substrate 23.
In the present embodiment, the liquid crystal 25 is set to a thickness of L1, as shown in FIG. The liquid crystal 25 can modulate incident light. In the present embodiment, the liquid crystal 25 can give a phase difference to incident light. This can be realized by setting retardation of the liquid crystal 25 (product of birefringence and thickness L1). In the present embodiment, a retardation is set that gives a quarter-wave phase difference to incident light.

The element substrate 31 of the light emitting panel 9 includes a third substrate 111 and an element layer 113.
The third substrate 111 is made of a light-transmitting material such as glass or quartz, for example, and includes a first surface 112a directed to the display surface 13 side, and a second surface 112b directed to the bottom surface 29 side. have.
The element layer 113 is provided on the second surface 112 b of the third substrate 111. The element layer 113 includes an insulating film 115, a reflective film 117, an insulating film 119, a pixel electrode 81, a partition wall 121, a functional layer 83, and a common electrode 85.

The insulating film 115 is provided on the second surface 112 b of the third substrate 111. For the insulating film 115, for example, a light transmissive material such as silicon oxide, silicon nitride, or acrylic resin can be employed.
A reflective film 117 is provided for each EL element 35 on the bottom surface 29 side of the insulating film 115. As the reflective film 117, for example, a material having high light reflectivity such as gold, silver, and aluminum can be adopted. In this embodiment, aluminum is adopted as the material of the reflective film 117.
An insulating film 119 that covers the reflective film 117 from the bottom surface 29 side is provided on the bottom surface 29 side of the insulating film 115 and the reflective film 117. As the insulating film 119, for example, a light-transmitting material such as silicon oxide, silicon nitride, or acrylic resin can be employed.
A pixel electrode 81 is provided for each EL element 35 on the bottom surface 29 side of the insulating film 119. As a material of the pixel electrode 81, ITO, indium zinc oxide, or the like can be employed. In this embodiment, ITO is adopted as the material of the pixel electrode 81.

On the bottom surface 29 side of the insulating film 119, a partition wall 121 that partitions the region 123 of each EL element 35 is provided between adjacent pixel electrodes 81. The partition wall 121 is made of a light transmissive material such as an acrylic resin or a polyimide resin. In the present embodiment, an acrylic resin is employed as the material of the partition wall 121.
The partition wall 121 is provided in a mesh shape over the display area 12 (FIG. 1) in plan view. As shown in FIG. 8, the partition wall 121 surrounds the region 123 of the EL element 35 for each EL element 35. For this reason, the EL element 35 is partitioned by the partition wall 121.

A functional layer 83 is provided on the bottom surface 29 side of the pixel electrode 81.
A common electrode 85 is provided on the bottom surface 29 side of the functional layer 83. The common electrode 85 is provided in a series of states across the plurality of EL elements 35. As a material of the common electrode 85, for example, an alloy containing magnesium and silver, calcium, or the like can be adopted. In this embodiment, an alloy containing magnesium and silver (hereinafter referred to as MgAg) is adopted as the material for the common electrode 85.

In the present embodiment, a region effective for light emission (hereinafter referred to as a light emitting region) in each EL element 35 is a region where the pixel electrode 81, the functional layer 83, and the common electrode 85 overlap in the region 123 in plan view. Can be defined. In the present embodiment, a group of elements that exhibit a light emitting function can be defined as one EL element 35. Therefore, in the present embodiment, one EL element 35 includes a pixel electrode 81 that overlaps the region 123, a functional layer 83, and a common electrode 85 that overlaps the region 123. In the present embodiment, the light emitting region in each EL element 35 is equivalent to the region 123. In the three types of EL element 35L, EL element 35M, and EL element 35S, the sizes of the regions 123 are different from each other.
Note that the above-described reflective film 117 is provided in a region overlapping the region 123 in plan view. In the present embodiment, the region where the reflective film 117 is provided is equivalent to the region 123. Thereby, since the region where the reflective film 117 is provided and the light emitting region can be made equal, a decrease in the aperture ratio of the pixel 11 can be easily suppressed.

The sealing substrate 33 includes a fourth substrate 131 and a counter layer 133. The fourth substrate 131 is made of a light-transmitting material such as glass or quartz, and has a facing surface 132a facing the display surface 13 side and an outward surface 132b facing the bottom surface 29 side. is doing.
The facing layer 133 is provided on the facing surface 132 a of the fourth substrate 131. The facing layer 133 includes a color filter 135 and an overcoat layer 137.
The color filter 135 is provided for each EL element 35. The color filter 135 is provided in an area overlapping the area 123 in plan view.
The color filter 135 can transmit light in a predetermined wavelength range. The color filter 135 is made of a resin colored in a different color for each of the EL elements 35R, 35G, and 35B. The color filter 135 corresponding to the EL element 35R can transmit R light. The color filter 135 corresponding to the EL element 35G can transmit G light, and the color filter 135 corresponding to the EL element 35B can transmit B light. Hereinafter, when R, G, and B are identified for each color filter 135, the notation of color filters 135R, 135G, and 135B is used.

  An overcoat layer 137 is provided on the display surface 13 side of the color filter 135. The overcoat layer 137 is made of a light-transmitting resin or the like, and covers the color filter 135 from the display surface 13 side. As the configuration of the sealing substrate 33, a configuration in which a light absorption layer is provided between the adjacent color filters 135 may be employed. In this case, the light absorption layer is provided on the facing surface 132a. With this configuration, it is possible to easily improve the contrast in display. As a material of the light absorption layer, for example, a resin containing a material having a high light absorption property such as carbon black or chromium can be employed.

In the element substrate 31 and the sealing substrate 33 having the above-described configuration, the common electrode 85 of the element substrate 31 and the overcoat layer 137 of the sealing substrate 33 are bonded via an adhesive 37.
In the present embodiment, the sealing material 39 shown in FIG. 2 is sandwiched between the second surface 112b of the third substrate 111 and the facing surface 132a of the fourth substrate 131 shown in FIG. That is, in the present embodiment, the EL element 35 and the adhesive 37 are sealed with the third substrate 111, the fourth substrate 131, and the sealing material 39. Note that the sealing material 39 may be provided between the overcoat layer 137 and the common electrode 85. In this case, the EL element 35 and the adhesive 37 can be regarded as being sealed by the element substrate 31, the sealing substrate 33, and the sealing material 39.

By the way, in this embodiment, the functional layer 83 includes an organic layer 141 and an electron injection layer 143 as shown in FIG. 9 which is an enlarged view of the EL element 35 in FIG.
The organic layer 141 is provided on the bottom surface 29 side of the pixel electrode 81. The electron injection layer 143 is provided on the bottom surface 29 side of the organic layer 141.
The organic layer 141 includes a hole injection layer 151, a hole transport layer 153, a light emitting layer 155, an intermediate layer 157, a light emitting layer 159, a light emitting layer 161, and an electron transport layer 163.
The hole injection layer 151 is made of a material containing an organic material, and is provided on the bottom surface 29 side of the pixel electrode 81 in a region surrounded by the partition wall 121 in a plan view.

As an organic material of the hole injection layer 151, for example, HI406 (made by Idemitsu Kosan Co., Ltd.) can be adopted. The hole injection layer 151 can be provided by utilizing a vapor deposition technique.
In addition, the arrangement | positioning of the material using a vapor deposition technique is called a vapor deposition method. In the present embodiment, a method is employed in which the hole injection layer 151 is formed over a region overlapping the display region 12 (FIG. 1) in plan view by a vapor deposition method. Thereby, the hole injection layer 151 is formed across the plurality of EL elements 35. For this reason, the hole injection layer 151 is also formed on the bottom surface 29 side of the partition wall 121.

The hole transport layer 153 is made of a material containing an organic material, and is provided on the bottom surface 29 side of the hole injection layer 151. As a material of the hole transport layer 153, for example, HT320 (made by Idemitsu Kosan Co., Ltd.) can be adopted. In this embodiment, the hole transport layer 153 is formed by a vapor deposition method.
The light emitting layer 155 is made of a material containing an organic material, and is provided on the bottom surface 29 side of the hole transport layer 153.
As the material of the light emitting layer 155, a material obtained by mixing a host material that ensures conductivity with a dopant having a function of emitting light by the combination of electrons and holes can be used. In the present embodiment, the light emitting layer 155 is formed by a vapor deposition method.
The light emitting layer 155 is a layer that emits R light. As a material of the light emitting layer 155 that emits R light, for example, a configuration in which RD001 (manufactured by Idemitsu Kosan Co., Ltd.) as a dopant is mixed into BH215 (manufactured by Idemitsu Kosan Co., Ltd.) as a host material can be adopted.

The intermediate layer 157 is made of a material containing an organic material, and is provided on the bottom surface 29 side of the light emitting layer 155. As a material constituting the intermediate layer 157, for example, αNPD may be employed.
The light emitting layer 159 is made of a material containing an organic material, and is provided on the bottom surface 29 side of the intermediate layer 157.
As a material for the light-emitting layer 159, a material obtained by mixing a host material that ensures conductivity with a dopant having a function of emitting light by the combination of electrons and holes can be used. In the present embodiment, the light emitting layer 159 is formed by a vapor deposition method.
The light emitting layer 159 is a layer that emits B light. As a material of the light emitting layer 159 that emits B light, for example, a configuration in which BD102 (made by Idemitsu Kosan Co., Ltd.) as a dopant is mixed into BH215 (made by Idemitsu Kosan Co., Ltd.) as a host material can be adopted.

The light emitting layer 161 is made of a material containing an organic material, and is provided on the bottom surface 29 side of the light emitting layer 159.
As a material of the light emitting layer 161, a material obtained by mixing a host material ensuring conductivity with a dopant having a function of emitting light by the combination of electrons and holes can be used. In the present embodiment, the light emitting layer 161 is formed by a vapor deposition method.
The light emitting layer 161 is a layer that emits G light. As the material of the light emitting layer 161 that emits G light, for example, a configuration in which GD206 (made by Idemitsu Kosan Co., Ltd.) as a dopant is mixed into BH215 (made by Idemitsu Kosan Co., Ltd.) as a host material can be adopted.
In the present embodiment, each of the plurality of EL elements 35 includes a light emitting layer 155, a light emitting layer 159, and a light emitting layer 161. For this reason, the light emitted from each EL element 35 toward the bottom surface 29 side, that is, the light traveling from each EL element 35 to the color filter 135 includes R light, B light, and G light. In the present embodiment, the light traveling from each EL element 35 toward the color filter 135 has a substantially white color.

The electron transport layer 163 is made of a material containing an organic material, and is provided on the bottom surface 29 side of the light emitting layer 161.
As a material of the electron transport layer 163, Alq3 (tris 8-quinolinolato aluminum complex) or the like can be adopted. In this embodiment, the electron transport layer 163 is formed by a vapor deposition method.
Note that the intermediate layer 157 has a function of adjusting the mobility of electrons and holes. The light emitting function in each of the light emitting layer 155, the light emitting layer 159, and the light emitting layer 161 is maintained by the intermediate layer 157.
The electron injection layer 143 is provided on the bottom surface 29 side of the electron transport layer 163. As a material for the electron injection layer 143, lithium fluoride, calcium fluoride, magnesium oxide, or the like may be employed. In this embodiment, lithium fluoride is adopted as the material of the electron injection layer 143.

The light detection unit 6 includes three detection elements 171 as shown in FIG. 10 which is a schematic cross-sectional view. Each detection element 171 includes a photo sensor 173 and a color filter 175. As the photosensor 173, for example, a photodiode or the like can be employed.
The photosensor 173 outputs a signal having a magnitude corresponding to the amount of irradiated light as a detection signal.
Each color filter 175 is provided on the light receiving surface side of each photosensor 173 and overlaps the light receiving surface of each photosensor 173 in plan view.

  The color filter 175 includes a color filter 175R capable of transmitting R light, a color filter 175G capable of transmitting G light, and a color filter 175B capable of transmitting B light. Hereinafter, the detection element 171 having the color filter 175R may be referred to as a detection element 171R. Similarly, the detection element 171 having the color filter 175G may be represented as a detection element 171G, and the detection element 171 having the color filter 175B may be represented as a detection element 171B. Hereinafter, the notation of the detection element 171 and the notation of the detection element 171R, the detection element 171G, and the detection element 171B are appropriately used.

In addition, the photosensor 173 of the detection element 171R may be referred to as a photosensor 173R. Similarly, the photosensor 173 of the detection element 171G may be referred to as a photosensor 173G, and the photosensor 173 of the detection element 171B may be referred to as a photosensor 173B.
The detection element 171R irradiates the photosensor 173R with R light that has passed through the color filter 175R out of external light. The photosensor 173R outputs a detection signal SR having a magnitude corresponding to the amount of received R light.
The detection element 171G irradiates the photosensor 173G with G light that has passed through the color filter 175G out of external light. The photosensor 173G outputs a detection signal SG having a magnitude corresponding to the amount of received G light.
In the detection element 171B, the photosensor 173B is irradiated with B light that has passed through the color filter 175B out of external light. The photosensor 173B outputs a detection signal SB having a magnitude corresponding to the amount of received B light.
The external light is different from the light emitted from the light emitting panel 9. As described above, in the present embodiment, the light detection unit 6 can detect the intensity of external light for each of R, G, and B.

As shown in FIG. 11, which is a block diagram of the display device 1, the control unit 5 includes an arithmetic processing unit 181, a light emission control unit 183, and an image control unit 185.
The detection signal SR, the detection signal SG, and the detection signal SB are input to the arithmetic processing unit 181 from the light detection unit 6. The arithmetic processing unit 181 outputs a control signal LS to the light emission control unit 183 based on the detection signal SR, the detection signal SG, and the detection signal SB. The control signal LS includes information instructing which of the EL element 35L, the EL element 35M, and the EL element 35S is lit for each of R, G, and B.
The light emission control unit 183 outputs a selection signal ST and a connection signal SW to the light emitting panel 9 based on the control signal LS. The selection signal ST is input to the connection selection circuit 86 as described above. The connection signal SW is input to the connection selection circuit 87 as described above. Power PW is supplied to the power line 89 via the connection selection circuit 87.

Here, when the magnitudes of the detection signal SR, the detection signal SG, and the detection signal SB are substantially equal to each other, for example, the control signal LS is one of the EL element 35L, the EL element 35M, and the EL element 35S. Information indicating one type of lighting is included. Further, any one of the EL element 35L, the EL element 35M, and the EL element 35S is selected according to the intensity of external light at this time.
Here, in this embodiment, a standard value is determined for the intensity of external light. By comparing the detection signal SR, the detection signal SG, and the detection signal SB with standard values, it is possible to grasp the intensity of external light.
For example, in a dark room, since the intensity of external light is weaker than the standard value, the lighting of the EL element 35L is instructed among the EL elements 35L, 35M, and 35S.
On the other hand, since the intensity of external light is higher than that of the standard value in sunny weather, lighting of the EL element 35S is instructed among the EL elements 35L, 35M, and 35S.

  For example, when the magnitude of the detection signal SR is smaller than the detection signal SG or the detection signal SB, the EL element 35R is instructed to turn on the EL element 35L, and the EL element 35G or the EL element 35B The lighting of the EL element 35M and the EL element 35S is instructed. Thereby, in the image light in display, the light emitting panel 9 can compensate for R light that is relatively weak in external light. As a result, even when the spectrum of the external light changes, it is possible to easily maintain the color of the image in the display.

The image control unit 185 outputs the scanning signal PLS, the image data DATA, and the common signal Vc to the liquid crystal panel 15. The scanning signal PLS is input to the scanning line driving circuit 55. The image data DATA is input to the signal line drive circuit 57. The common signal Vc is input to the common electrode 65.
The scanning signal PLS is a signal that defines the start of one frame period. The image data DATA is data instructing the gradation in each pixel 11 and is output to the signal line drive circuit 57 in units of pixel rows 53 (FIG. 3).

The scanning line driving circuit 55 sequentially outputs the selection signal ge (n) to the scanning line Te (n) based on the input scanning signal PLS.
The signal line driving circuit 57 collectively outputs the data signals de (m) corresponding to the respective pixels 11 to the plurality of signal lines Se (m) in units of pixel rows 53 based on the input image data DATA.
The common electrode 65 is kept at a potential corresponding to the common signal Vc.

In the display device 1 having the above-described configuration, the display is controlled by changing the alignment state of the liquid crystal 25 (FIG. 8) for each pixel 11 in a state where light is emitted from the light emitting panel 9 to the image forming panel 7. . The alignment state of the liquid crystal 25 can be changed by controlling a voltage applied between the pixel electrode 63 and the common electrode 65 (hereinafter referred to as a drive voltage).
In the liquid crystal panel 15, when a voltage is applied between the pixel electrode 63 and the common electrode 65, an electric field is generated between the pixel electrode 63 and the common electrode 65. This electric field can change the alignment state of the liquid crystal 25 for each pixel 11.
In the present embodiment, when an electric field acts on the liquid crystal 25, the liquid crystal 25 is turned on. On the other hand, when the electric field acting on the liquid crystal 25 is released, the liquid crystal 25 is turned off.
Each of the alignment film 95 and the alignment film 103 is subjected to an alignment process. The alignment state of the liquid crystal 25 is regulated by the alignment film 95 and the alignment film 103 that have been subjected to the alignment treatment.
In the display device 1, the liquid crystal 25 is in an off state when the driving voltage is 0V. On the other hand, when the drive voltage exceeds 0 V, the liquid crystal 25 changes from the off state to the on state.

12A is a diagram illustrating a polarization state in the image forming panel 7 when the liquid crystal 25 is in an off state, and FIG. 12B is a polarization state in the image forming panel 7 when the liquid crystal 25 is in an on state. FIG.
In the image forming panel 7, when the direction in which the transmission axis 19 a of the polarizing plate 19 extends in the plan view is the X ′ direction, the slow axis 17 a of the phase difference plate 17 is shown in FIGS. As shown in b), it extends in a direction having an inclination of approximately 22.5 degrees counterclockwise with respect to the X ′ direction.
In FIG. 12A and FIG. 12B, the Y ′ direction indicates a direction orthogonal to the X ′ direction in plan view. The X ′ direction and the Y ′ direction are arbitrary two directions orthogonal to each other in the XY plane.

The light incident on the image forming panel 7 from the display surface 13 side through the polarizing plate 19 is polarized along the direction of the transmission axis 19a of the polarizing plate 19 as shown in FIGS. 12 (a) and 12 (b). The light enters the phase difference plate 17 as linearly polarized light 191 having an axis.
The linearly polarized light 191 incident on the phase difference plate 17 is given a half-wave phase difference and is incident on the liquid crystal 25 as the linearly polarized light 192. The polarization axis of the linearly polarized light 192 is along a direction having an inclination of approximately 45 degrees counterclockwise with respect to the X ′ direction in plan view.
The linearly polarized light 192 incident on the liquid crystal 25 is given a quarter-wave phase difference when the liquid crystal 25 is in the off state, as shown in FIG. It goes to the pixel electrode 63 as polarized light 193.
The circularly polarized light 193 is reflected by the pixel electrode 63 and enters the liquid crystal 25 as circularly polarized light 194 that rotates clockwise as viewed in FIG.
In the present embodiment, the path of light incident on the image forming panel 7 is directed from the polarizing plate 19 to the bottom surface 29 side through the phase difference plate 17 and the liquid crystal 25, and is bent toward the display surface 13 side by the pixel electrode 63. Yes. This is because light traveling from the display surface 13 side to the bottom surface 29 side is reflected to the display surface 13 side by the light reflectivity of the pixel electrode 63.

The circularly polarized light 194 incident on the liquid crystal 25 is given a phase difference of ¼ wavelength, and is linearly polarized light having a polarization axis along a direction having a tilt of about 45 degrees clockwise with respect to the X ′ direction in plan view. The light enters the phase difference plate 17 as 195.
The linearly polarized light 195 incident on the phase difference plate 17 is given a half-wave phase difference and enters the polarizing plate 19 as linearly polarized light 196. The polarization axis of the linearly polarized light 196 is along a direction (approximately Y ′ direction) having a tilt of approximately 90 degrees clockwise with respect to the X ′ direction in plan view. For this reason, most of the linearly polarized light 196 is absorbed by the polarizing plate 19.
Thus, in the display device 1, when the liquid crystal 25 is in the off state, the light from the light emitting panel 9 is blocked by the image forming panel 7 in the course of the course. The state where the light from the light emitting panel 9 is blocked by the image forming panel 7 is called black display. In the present embodiment, a so-called normally black display mode in which black display is performed when the liquid crystal 25 is in an off state is employed.

On the other hand, when the liquid crystal 25 is in the on state, the linearly polarized light 192 incident on the liquid crystal 25 is directed to the pixel electrode 63 as the linearly polarized light 192 while maintaining the polarization state, as shown in FIG.
The linearly polarized light 192 directed to the pixel electrode 63 is reflected by the pixel electrode 63 while maintaining the polarization state, and enters the liquid crystal 25.
The linearly polarized light 192 incident on the liquid crystal 25 from the pixel electrode 63 is incident on the phase difference plate 17 while maintaining the polarization state. The linearly polarized light 192 incident on the phase difference plate 17 is given a half-wave phase difference, and enters the polarizing plate 19 as linearly polarized light 197 having a polarization axis substantially along the X ′ direction in plan view. The linearly polarized light 197 incident on the polarizing plate 19 can pass through the polarizing plate 19 because the polarization axis is along the direction of the transmission axis 19 a of the polarizing plate 19.
As described above, in the display device 1, when the liquid crystal 25 is in the ON state, light from the light emitting panel 9 can be emitted to the display surface 13 side through the image forming panel 7. A state in which light from the light emitting panel 9 is emitted to the display surface 13 side through the image forming panel 7 is called white display.

In the display device 1, in white display, the amount of light transmitted through the polarizing plate 19 toward the display surface 13 can be reduced (changed) by controlling the inclination of the molecules of the liquid crystal 25. That is, in the display device 1, in white display, the amount of light transmitted through the polarizing plate 19 to the display surface 13 side can be controlled by controlling the inclination of the molecules of the liquid crystal 25. Thereby, the amount of light emitted to the display surface 13 side via the image forming panel 7 can be controlled for each pixel 11. That is, in the image forming panel 7, the luminance of light emitted to the display surface 13 side can be changed for each pixel 11. As a result, the display device 1 can realize gradation expression in display.
In the display device 1, the luminance of light emitted to the display surface 13 side through the image forming panel 7 increases according to the magnitude of the driving voltage. That is, in the display device 1, gradation expression in display can be realized by controlling the magnitude of the drive voltage.
In the present embodiment, the normally black display mode is adopted, but the display mode is not limited to this, and normally white (initially “white display” state) can also be adopted.

In the present embodiment, the EL element 35, the EL element 35L, the EL element 35M, and the EL element 35S each correspond to a light emitting element. The EL element 35R corresponds to a red element, the EL element 35G corresponds to a green element, and the EL element 35B corresponds to a blue element. The detection element 171 corresponds to a light detection element, the color filter 175R corresponds to a red filter, the color filter 175G corresponds to a green filter, the color filter 175B corresponds to a blue filter, and the photosensor 173 It corresponds to the light receiving element. The light emitting panel 9 corresponds to an illumination device as a light emitting unit, the image forming panel 7 corresponds to an image forming unit, the pixel electrode 81 and the common electrode 85 correspond to a pair of electrodes, and the reflective film 117 serves as a reflective layer. It corresponds.
In the present embodiment, gradation representation in an image can be realized by controlling the amount of light from the light emitting panel 9 for each pixel 11 of the image forming panel 7. For this reason, gradation expression in the light emitting panel 9 which is an organic EL device can be omitted. As a result, it is possible to simplify the circuit for controlling the light emission for each EL element 35 as compared with the case where gradation expression is realized by the light emitting panel 9 which is an organic EL device. Thereby, the cost of the display device 1 can be easily reduced.

A second embodiment will be described.
In the second embodiment, the display panel 3 includes a light emitting panel 201 as shown in FIG. The display device 1 in the second embodiment has the same configuration as the display device 1 in the first embodiment, except that the light-emitting panel 9 (FIG. 8) in the first embodiment is replaced with the light-emitting panel 201. Have. For this reason, in the following, the same components as those of the display device 1 in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

The light emitting panel 201 includes an element substrate 203 and a sealing substrate 205.
In the light emitting panel 201, the configuration of the functional layer 83 is different for each EL element 35R, EL element 35G, and EL element 35B, and the color filter 135 and the overcoat layer 137 are omitted. It has the same configuration as the light emitting panel 9 (FIG. 8) in one embodiment. Therefore, in the following, the same components as those of the light emitting panel 9 in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

In the light emitting panel 201, the color of light emitted from the EL element 35 and directed to the sealing substrate 205 is different for each of the EL element 35R, the EL element 35G, and the EL element 35B. The EL element 35R emits R light. The EL element 35G emits G light, and the EL element 35B emits B light. This can be realized by changing the configuration of the functional layer 83 for each of the EL elements 35R, 35G, and 35B. Hereinafter, when the functional layer 83 is identified for each of R, G, and B, the notation of the functional layer 83R, the functional layer 83G, and the functional layer 83B is used.
The sealing substrate 205 has a fourth substrate 131. The sealing substrate 205 has a configuration in which the color filter 135 and the overcoat layer 137 are omitted from the sealing substrate 33 (FIG. 8) in the first embodiment.

The functional layer 83 has an organic layer 207 as shown in FIG. 14 which is an enlarged view of the EL element 35R in FIG.
The organic layer 207 in the functional layer 83R includes a hole injection layer 151, a hole transport layer 153, a light emitting layer 155, and an electron transport layer 163 in order from the display surface 13 side to the bottom surface 29 side in the region 123. is doing.
Although illustration is omitted, the organic layer 207 in the functional layer 83G includes a hole injection layer 151, a hole transport layer 153, a light emitting layer 161, and a light emitting layer 161 in order from the display surface 13 side to the bottom surface 29 side in the region 123. An electron transport layer 163 is provided.

Similarly, the organic layer 207 in the functional layer 83B includes a hole injection layer 151, a hole transport layer 153, a light emitting layer 159, and an electron transport layer in order from the display surface 13 side to the bottom surface 29 side in the region 123. 163.
In the second embodiment, the light emitting layer 155, the light emitting layer 159, and the light emitting layer 161 are separated from each other between the EL elements 35 arranged in the X direction. That is, the light emitting layer 155, the light emitting layer 159, and the light emitting layer 161 are individually provided for each of the EL element 35R, the EL element 35B, and the EL element 35G arranged in the X direction.
This is because the light-emitting layer 155, the light-emitting layer 159, and the light-emitting layer 161 are individually formed for each of the EL element 35R, the EL element 35B, and the EL element 35G by utilizing a mask vapor deposition method using a mask. Can be realized.

In the second embodiment, the light emitting panel 201 corresponds to the light emitting unit.
In the second embodiment, the same effect as in the first embodiment can be obtained.
In the second embodiment, the thickness of the organic layer 207 can be easily reduced as compared with the first embodiment. Furthermore, in the second embodiment, the color filter 135 can be omitted. Accordingly, in the second embodiment, it is possible to easily reduce the thickness of the light emitting panel 201 as compared with the first embodiment. As a result, in the second embodiment, the display device 1 can be made thinner than the first embodiment.

A third embodiment will be described.
In the third embodiment, the display panel 3 includes a light emitting panel 211 as shown in FIG. The display device 1 according to the third embodiment has the same configuration as the display device 1 according to the first embodiment, except that the light-emitting panel 9 (FIG. 8) according to the first embodiment is replaced with the light-emitting panel 211. Have. For this reason, in the following, the same components as those of the display device 1 in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
The light emitting panel 211 includes an element substrate 213 and a sealing substrate 205.
In the light-emitting panel 211, the thickness of the pixel electrode 81 is different for each EL element 35R, EL element 35G, and EL element 35B, and the sealing substrate 33 is replaced with the sealing substrate 205. It has the same configuration as the light emitting panel 9 (FIG. 8). Therefore, in the following, the same components as those of the light emitting panel 9 in the first embodiment and the light emitting panel 201 in the second embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

In the light emitting panel 211, the distance between the reflective film 117 and the common electrode 85 is set to a different distance for each of the EL element 35R, the EL element 35G, and the EL element 35B.
In the EL element 35R, the distance between the reflective film 117 and the common electrode 85 is set to the distance D1. In the EL element 35G, the distance between the reflective film 117 and the common electrode 85 is set to the distance D2. In the EL element 35B, the distance between the reflective film 117 and the common electrode 85 is set to the distance D3.
In the light-emitting panel 211, D1, D2, and D3 satisfy the relationship D1>D2> D3.
In the light emitting panel 211, the relationship of D1>D2> D3 is realized by setting the thickness of the pixel electrode 81 to a different thickness for each of the EL element 35R, the EL element 35G, and the EL element 35B. In the light emitting panel 211, the thickness of the pixel electrode 81 in the EL element 35R is the thickest among the EL elements 35R, 35G, and 35B. In the light emitting panel 211, among the EL elements 35R, 35G, and 35B, the pixel electrode 81 in the EL element 35B has the smallest thickness.

In the light-emitting panel 211, in each of the EL elements 35, the light from the organic layer 141 (FIG. 9) in the functional layer 83 includes R light from the light-emitting layer 155, B light from the light-emitting layer 159, and light emission. G light from the layer 161 is included.
In each of the EL elements 35, the light emitted from the functional layer 83 includes light traveling from the functional layer 83 toward the bottom surface 29 and light traveling from the functional layer 83 toward the display surface 13.
Part of the light traveling from the functional layer 83 toward the display surface 13 is transmitted through the pixel electrode 81 and then reflected by the reflective film 117 toward the bottom surface 29.

At this time, in the EL element 35R, R light included in the reflected light reflected to the bottom surface 29 side by the reflective film 117 and light directed directly from the functional layer 83 toward the bottom surface 29 side (hereinafter referred to as direct light). The contained R light strengthens each other by the resonance phenomenon. In other words, in the EL element 35R, the distance D1 is set such that the R light included in the reflected light and the R light included in the direct light strengthen each other.
In the EL element 35G, the G light included in the reflected light and the G light included in the direct light reinforce each other by the resonance phenomenon. In the EL element 35G, the distance D2 is set such that the G light included in the reflected light and the G light included in the direct light strengthen each other.
Similarly, in the EL element 35B, the B light included in the reflected light and the B light included in the direct light reinforce each other by the resonance phenomenon. In the EL element 35B, the distance D3 is set such that the B light included in the reflected light and the B light included in the direct light strengthen each other.

In the light-emitting panel 211, by setting the distances of D1, D2, and D3, the R light is emitted from the EL element 35R, the G light is emitted from the EL element 35G, and the B light is emitted from the EL element 35B. be able to.
In the third embodiment, the light emitting panel 211 corresponds to a light emitting unit.
In the third embodiment, the same effects as those of the first embodiment and the second embodiment can be obtained.

A fourth embodiment will be described.
In the fourth embodiment, the display panel 3 includes a light emitting panel 221 as shown in FIG. The display device 1 in the fourth embodiment has the same configuration as the display device 1 in the first embodiment, except that the light-emitting panel 9 (FIG. 8) in the first embodiment is replaced with the light-emitting panel 221. Have. For this reason, in the following, the same components as those of the display device 1 in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
The light emitting panel 221 includes an element substrate 213 and a sealing substrate 33.
The light emitting panel 221 has the same configuration as the light emitting panel 211 except that the sealing substrate 205 of the light emitting panel 211 (FIG. 15) in the third embodiment is replaced with the sealing substrate 33. . For this reason, in the following, the same reference numerals are given to the same configurations as those of the first embodiment, the second embodiment, and the third embodiment, and detailed description thereof is omitted.

In the fourth embodiment, the light emitting panel 221 corresponds to the light emitting unit.
In the fourth embodiment, the same effects as those of the first embodiment, the second embodiment, and the third embodiment can be obtained.
In the fourth embodiment, since the color filter 135 is interposed between the EL element 35 and the image forming panel 7, the color purity of light emitted from each of the EL element 35R, the EL element 35G, and the EL element 35B. Is increased. Thereby, the display quality in the display of the display device 1 is improved.

In the first to fourth embodiments, three types of EL elements 35, EL element 35M, EL element 35M, and EL element 35S are employed as the types of EL elements 35, respectively. However, the types of EL elements 35 are not limited to three types, and any number of two or more types can be adopted.
In the first to fourth embodiments, a configuration in which three EL elements 35 are associated with one pixel 11 is illustrated. However, the number of EL elements 35 corresponding to one pixel 11 is not limited to this, and an arbitrary number of two or more can be adopted. If the plurality of EL elements 35 corresponding to one pixel 11 include a plurality of types having different light emitting area sizes, the plurality of EL elements 35 having the same light emitting area size can be obtained. It may be included.

In the first to fourth embodiments, the TN type liquid crystal 25 has been described as an example. However, the liquid crystal 25 is not limited to this, and the FFS (Fringe Field Switching) type, IPS (In Plane Switching) type, Various types such as a VA (Vertical Alignment) type can be adopted.
In the first to fourth embodiments, as the configuration of the display device 1, a configuration in which the light emitting panels 9, 201, 211, and 221 are arranged on the display surface 13 side of the reflective liquid crystal panel 15 is employed. . In this case, each of the light emitting panels 9, 201, 211, and 221 functions as a so-called front light. However, the configuration of the display device 1 is not limited to this, and a configuration in which the light emitting panels 9, 201, 211, and 221 are disposed on the bottom surface 29 side of the transmissive liquid crystal panel may be employed. In this case, each of the light emitting panels 9, 201, 211, and 221 functions as a so-called backlight.

In the first to fourth embodiments, the liquid crystal panel 15 is employed for the image forming panel 7. However, the image forming panel 7 is not limited to this configuration, and an electrophoretic panel using an electrophoretic element is also used. Can be employed.
In the first to fourth embodiments, top emission type organic EL devices are employed as the light emitting panels 9, 201, 211, and 221, respectively. However, the configuration of the light emitting panels 9, 201, 211, and 221 is not limited to this, and a bottom emission type organic EL device can also be employed.

Further, in the first embodiment and the fourth embodiment, the configuration in which the color filters 135 are provided in the light emitting panels 9 and 221 is illustrated, but the configuration of the display panel 3 is not limited to this. As the configuration of the display panel 3, a configuration in which the color filter 135 is provided on the liquid crystal panel 15 may be employed.
Further, in each of the first embodiment and the fourth embodiment, a configuration in which the color filter 135 is added to the liquid crystal panel 15 may be employed. In this configuration, since the color filter 135 is provided on both the light emitting panels 9 and 221 and the liquid crystal panel 15, the color purity of light can be further improved.

In the second embodiment, the configuration in which the color filter 135 is omitted is illustrated, but the configuration of the display panel 3 is not limited to this. As the configuration of the display panel 3, a configuration in which the color filter 135 is provided on the display panel 3 in the second embodiment may be employed. Thereby, the color purity of the light in the display panel 3 in 2nd Embodiment can be improved.
As the configuration in which the color filter 135 is provided on the display panel 3 in the second embodiment, any of the configuration in which the color filter 135 is provided in the light emitting panel 201 and the configuration in which the color filter 135 is provided in the liquid crystal panel 15 is adopted. Can be done.
Furthermore, in the display panel 3 in the second embodiment, a configuration in which the color filter 135 is provided on both the light emitting panel 201 and the liquid crystal panel 15 may be employed. Thereby, the color purity of the light in the display panel 3 in 2nd Embodiment can be improved further.

The display device 1 described above can be applied to, for example, the display unit 510 of the electronic device 500 illustrated in FIG. The electronic device 500 is a mobile phone. This electronic device 500 has an operation button 511. The display unit 510 can display various information including information input by the operation buttons 511 and incoming call information. In this electronic apparatus 500, since the display device 1 is applied to the display unit 510, it is possible to easily maintain the color of the image on the display unit 510.
The electronic device 500 is not limited to a mobile phone, and includes various electronic devices such as mobile computers, digital still cameras, digital video cameras, in-vehicle devices such as display devices for car navigation systems, and audio devices.

  DESCRIPTION OF SYMBOLS 1 ... Display apparatus, 3 ... Display panel, 5 ... Control part, 6 ... Light detection part, 7 ... Image formation panel, 9 ... Light emission panel, 11 ... Pixel, 13 ... Display surface, 15 ... Liquid crystal panel, 25 ... Liquid crystal, 29 ... bottom surface, 31 ... element substrate, 33 ... sealing substrate, 35 ... EL element, 35R, 35G, 35B ... EL element, 35L, 35M, 35S ... EL element, 63 ... pixel electrode, 65 ... common electrode, 71 ... Element column, 71R, 71G, 71B ... Element column, 73 ... Element row, 73L, 73M, 73S ... Element row, 75 ... Composite element, 81 ... Pixel electrode, 83 ... Functional layer, 85 ... Common electrode, 86 ... Connection selection Circuit 87, Connection selection circuit 88 ... Common line 89 ... Power line 135 ... Color filter 141 ... Organic layer 143 ... Electron injection layer 151 ... Hole injection layer 153 ... Hole transport layer 155 ... Light emitting layer, 157 ... intermediate layer, 1 DESCRIPTION OF SYMBOLS 9 ... Light emitting layer, 161 ... Light emitting layer, 163 ... Electron transport layer, 171 ... Detection element, 171R, 171G, 171B ... Detection element, 173 ... Photo sensor, 173R, 173G, 173B ... Photo sensor, 175 ... Color filter, 175R , 175G, 175B... Color filter, 181... Arithmetic processing unit, 183... Light emission control unit, 185. , 500 ... electronic equipment, 510 ... display unit, 511 ... operation buttons.

Claims (14)

Having a plurality of light emitting elements,
The light emitting element has a configuration in which an organic layer including a light emitting layer is interposed between electrodes facing each other,
The plurality of light emitting elements include a plurality of red elements that emit red light, a plurality of green elements that emit green light, and a plurality of blue elements that emit blue light. Elements, and
The plurality of red elements include a plurality of the light emitting elements having different light emitting area sizes,
The plurality of green-based elements include a plurality of the light-emitting elements having different light-emitting areas.
The plurality of blue-based elements include a plurality of the light-emitting elements having different light-emitting areas.
A lighting device characterized by that. For each of the red color, the green color, and the blue color, a light detection element that detects an intensity of external light different from the light from the light emitting element,
The lighting device according to claim 1. The light detection element corresponding to the red color includes a red filter that transmits the red color light, and a signal having a magnitude corresponding to the amount of the light transmitted through the red filter. A light receiving element that outputs,
The light detection element corresponding to the green color includes a green filter that transmits the green color light, and a signal having a magnitude corresponding to the amount of the light that has passed through the green filter. A light receiving element that outputs,
The light detection element corresponding to the blue color includes a blue filter that transmits the light of the blue color, and a signal having a magnitude corresponding to the amount of light of the light transmitted through the blue filter. A light receiving element for outputting,
The lighting device according to claim 2. A plurality of light emitting elements, and a light emitting unit that emits light for each of the light emitting elements;
A plurality of pixels, and an image forming unit that forms an image by selectively controlling the amount of light from the light emitting unit for each pixel in the course of the light, and
The light emitting element has a configuration in which an organic layer including a light emitting layer is interposed between electrodes facing each other,
The plurality of pixels include a red pixel that receives red light from the light emitting element, a green pixel that receives green light from the light emitting element, and a blue color from the light emitting element. And blue pixels that receive light,
In each of the red pixel, the green pixel, and the blue pixel, a plurality of the light emitting elements correspond to one pixel,
The plurality of light emitting elements corresponding to the one pixel includes a plurality of light emitting elements having different light emitting areas.
An electro-optical device. For each of the red color, the green color, and the blue color, a light detecting element that detects the intensity of external light different from the light from the light emitting unit,
The electro-optical device according to claim 4. The light detection element corresponding to the red color includes a red filter that transmits the red color light, and a signal having a magnitude corresponding to the amount of the light transmitted through the red filter. A light receiving element that outputs,
The light detection element corresponding to the green color includes a green filter that transmits the green color light, and a signal having a magnitude corresponding to the amount of the light that has passed through the green filter. A light receiving element that outputs,
The light detection element corresponding to the blue color includes a blue filter that transmits the light of the blue color, and a signal having a magnitude corresponding to the amount of light of the light transmitted through the blue filter. A light receiving element for outputting,
The electro-optical device according to claim 5.   The electro-optical device according to claim 4, wherein the light emitting unit and the image forming unit face each other. The image forming unit has light reflectivity for reflecting irradiated light,
The path of the light from the light emitting unit is bent by light reflectivity at the image forming unit,
The electro-optical device according to claim 4, wherein The image forming unit includes a pair of electrodes for forming an electric field and a liquid crystal interposed between the pair of electrodes.
The electro-optical device according to claim 4, wherein An image control unit for controlling the image forming unit;
A light emission control unit for controlling the light emission unit,
The image control unit causes the image forming unit to form the image while updating the image every update period.
The period during which light emission of the plurality of light emitting elements is permitted is set to a different period for each size of the light emitting region in each of the update periods.
The light emission control unit selectively controls, for each light emitting element, a light emitting state and a stopped state of the light emitting element that are allowed to emit light in each of the periods set for each size of the light emitting region.
The electro-optical device according to claim 4, wherein In the light emitting unit, a reflective layer that reflects at least part of light from the light emitting layer to the light emitting layer side is provided for each light emitting element on the side opposite to the path of the light emitting layer.
The distance between the light emitting layer and the reflective layer is different for each of the red color, the green color, and the blue color.
The electro-optical device according to claim 4, wherein Between the light emitting element and the pixel, the red color pixel, the green color pixel, and the blue color pixel correspond to the red color, the green color, and the blue color, respectively. A color filter that transmits light of the color is provided,
The electro-optical device according to claim 11. The light emitting element corresponding to the red pixel has the light emitting layer that emits the red light.
The light emitting element corresponding to the green pixel includes the light emitting layer that emits light of the green color,
The light emitting element corresponding to the blue pixel has the light emitting layer that emits the blue light.
The electro-optical device according to claim 4, wherein The electro-optical device according to claim 4.
An electronic device characterized by that.

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