WO2022054604A1

WO2022054604A1 - Display device and electronic apparatus

Info

Publication number: WO2022054604A1
Application number: PCT/JP2021/031460
Authority: WO
Inventors: 柱元濱地; 陽介元山; 伸一荒川
Original assignee: ソニーセミコンダクタソリューションズ株式会社
Priority date: 2020-09-10
Filing date: 2021-08-27
Publication date: 2022-03-17
Also published as: JPWO2022054604A1; CN116034296A; TW202211724A

Abstract

A display device according to the present disclosure includes light-emitting elements arranged in a matrix. Each light-emitting element has a convex polygon-shaped light-emitting surface, and an upper part of the light-emitting element is covered with an optical element provided independently to correspond to each light-emitting element, and having a bottom surface or a top surface including a portion with a shape copying the sides of the light-emitting surface, the portion extending to the outside of the region of the light-emitting surface.

Description

Display devices and electronic devices

This disclosure relates to display devices and electronic devices.

A light emitting element having a current-driven light emitting unit and a display device provided with such a light emitting element are well known. For example, a light emitting element provided with a light emitting unit composed of an organic electroluminescence element is attracting attention as a light emitting element capable of high-luminance light emission by low-voltage direct current drive.

For display devices that are attached to eyewear such as eyeglasses and goggles to display images, in addition to making the size of the light emitting element about several micrometers to 10 micrometers, it is possible to increase the brightness. It has been demanded. For example, Patent Document 1 describes that a hemispherical optical element is arranged on a light emitting layer to improve the light extraction efficiency.

Japanese Unexamined Patent Publication No. 2011-60720

When the shape of the light emitting surface of the light emitting element is, for example, rectangular, if an optical element having a circular bottom surface is arranged, it is difficult for the optical element to completely cover the light emitting surface. Therefore, the proportion of light that does not enter the optical element increases, and the light extraction efficiency decreases.

Therefore, an object of the present disclosure is to provide a display device having an optical element above the light emitting element and having a structure capable of improving the light extraction efficiency, and an electronic device provided with such a display device.

The display device according to the present disclosure for achieving the above object is
It contains light emitting elements arranged in a matrix and contains light emitting elements.
The light emitting element has a convex polygonal light emitting surface, and has a light emitting surface.
The upper part of the light emitting element is provided independently corresponding to each light emitting element, and includes an optical element having a bottom surface or an upper surface that includes a portion having a shape that imitates the side of the light emitting surface and the portion extends outside the region of the light emitting surface. Covered,
It is a display device.

The electronic devices pertaining to this disclosure to achieve the above objectives are:
It contains light emitting elements arranged in a matrix and contains light emitting elements.
The light emitting element has a convex polygonal light emitting surface, and has a light emitting surface.
The upper part of the light emitting element is provided independently corresponding to each light emitting element, and includes an optical element having a bottom surface or an upper surface that includes a portion having a shape that imitates the side of the light emitting surface and the portion extends outside the region of the light emitting surface. Covered,
It is an electronic device equipped with a display device.

FIG. 1 is a schematic plan view for explaining the display device according to the first embodiment. FIG. 2 is a schematic circuit diagram for explaining the configuration of the light emitting element. FIG. 3 is a schematic partial cross-sectional view of a substrate or the like for explaining the structure of the display device. FIG. 4 is a schematic partial cross-sectional view of a substrate or the like for explaining the structure of the display device, following FIG. FIG. 5A is a schematic partial plan view for explaining the arrangement relationship between the pixel and the optical element according to the first configuration example including a plurality of light emitting elements. FIG. 5B is a schematic perspective view for explaining the shape of the optical element. FIG. 6A is a schematic perspective view for explaining the shape of the optical element, following FIG. 5B. FIG. 6B is a schematic perspective view for explaining the shape of the optical element, following FIG. 5B. FIG. 7A is a schematic partial plan view for explaining the arrangement relationship between the pixel and the optical element according to the second configuration example including the plurality of light emitting elements. FIG. 7B is a schematic perspective view for explaining the shape of the optical element. FIG. 8A is a schematic perspective view for explaining the shape of the optical element, following FIG. 7B. FIG. 8B is a schematic perspective view for explaining the shape of the optical element, following FIG. 7B. FIG. 9A is a schematic partial plan view for explaining the arrangement relationship between the pixel and the optical element according to the third configuration example including the plurality of light emitting elements. FIG. 9B is a schematic perspective view for explaining the shape of the optical element. FIG. 10A is a schematic partial plan view for explaining the arrangement relationship between the pixel and the optical element according to the fourth configuration example including the plurality of light emitting elements. FIG. 10B is a schematic perspective view for explaining the shape of the optical element. FIG. 11A is a schematic partial plan view for explaining the arrangement relationship between the pixel and the optical element according to the fifth configuration example including the plurality of light emitting elements. FIG. 11B is a schematic perspective view for explaining the shape of the optical element. FIG. 12A is a schematic partial plan view for explaining the arrangement relationship between the pixels and the optical element according to the fifth configuration example, following FIG. 11A. FIG. 12B is a schematic perspective view for explaining the shape of the optical element. FIG. 13A is a schematic plan view for explaining the long side and the short side of the rectangular light emitting surface. FIG. 13B is a schematic graph for explaining the relationship between the dimensions of the long side and the number of optical elements when the light extraction efficiency is maximized. FIG. 14A is a schematic plan view for explaining a case where an optical element divided into a long side direction and a short side direction is arranged on a rectangular light emitting surface. FIG. 14B is a schematic perspective view for explaining the shape of the optical element. FIG. 15 is a schematic partial cross-sectional view of a substrate or the like for explaining the structure of the display device according to the second embodiment. FIG. 16 is a schematic partial cross-sectional view of a substrate or the like for explaining the structure of the display device, following FIG. FIG. 17 is a schematic partial cross-sectional view of a substrate or the like for explaining the structure of the display device according to the third embodiment. FIG. 18 is a schematic partial cross-sectional view of a substrate or the like for explaining the structure of the display device according to the first modification of the third embodiment. FIG. 19 is a schematic partial cross-sectional view of a substrate or the like for explaining the structure of the display device according to the second modification of the third embodiment. FIG. 20A is a front view of an interchangeable lens single-lens reflex type digital still camera. FIG. 20B is a rear view of an interchangeable lens single-lens reflex type digital still camera. FIG. 21 is an external view of the head-mounted display. FIG. 22 is an external view of the see-through head-mounted display. FIG. 23 is a block diagram showing an example of a schematic configuration of a vehicle control system. FIG. 24 is an explanatory diagram showing an example of the installation positions of the vehicle exterior information detection unit and the image pickup unit.

Hereinafter, the present disclosure will be described with reference to the drawings. The present disclosure is not limited to embodiments, and various numerical values and materials in the embodiments are examples. In the following description, the same reference numerals will be used for the same elements or elements having the same function, and duplicate description will be omitted. The explanation will be given in the following order.
1. 1. Description of display devices and electronic devices related to this disclosure in general 2. First embodiment and various configuration examples 3. Second embodiment 4. 3. Third embodiment and various modifications 5. Description of electronic devices 6. Application example 7. others

[Explanation of display devices and electronic devices related to this disclosure, in general]
As described above, the display device according to the present disclosure and the display device used for the electronic device according to the present disclosure (hereinafter, these may be simply referred to as "the display device of the present disclosure") are arranged in a matrix. The light emitting element has a convex polygonal light emitting surface, and the upper part of the light emitting element is independently provided corresponding to each light emitting element and follows the side of the light emitting surface. A portion of the shape is included and the portion is covered by an optical element having a bottom surface or an upper surface extending outside the region of the light emitting surface.

In this case, the cross-sectional shape when the optical element is cut in a virtual plane orthogonal to the light emitting element is a semicircular shape, a trapezoidal shape, a rectangular shape, a polygonal shape, or a combination thereof. Can be. Basically, it is preferable that the cross-sectional shape is trapezoidal or semicircular. It should be noted that the "semicircular shape" is not limited to a strictly semicircular shape, but includes a shape recognized as a semicircular shape in actual use.

As the material constituting the optical element, a suitable material may be appropriately selected from transparent organic materials and inorganic materials. The optical element can be obtained, for example, by forming a resist on a transparent material layer and etching it.

As described above, in the display device of the present disclosure, the light emitting element has a convex polygonal light emitting surface. The convex polygon shape may be a regular tessellation type shape such as a regular triangle shape, a square shape, or a regular hexagon shape, or may be a rectangular shape such as a rectangle. Basically, it is preferable that the light emitting surface of the light emitting element has a rectangular shape or a regular hexagonal shape.

In the display device of the present disclosure including the various preferable configurations described above, each light emitting element can be configured so that at least one optical element corresponds to it.

The display device of the present disclosure including the various preferable configurations described above can be configured to include at least a light emitting element for red display, a light emitting element for green display, and a light emitting element for blue display. In this case, each light emitting element for displaying a specific color may be configured so that a plurality of optical elements correspond to each other.

In this case, the light emitting element for displaying a specific color is provided with a rectangular light emitting surface, and a plurality of optical elements can be provided side by side in the long side direction of the light emitting surface. In particular, each light emitting element for displaying blue can be configured so that a plurality of optical elements correspond to each other.

A light emitting element for red display, a light emitting element for green display, and a display device including at least a light emitting element for red display, a light emitting element for green display, and a light emitting element for blue display, which include various preferable configurations described above. The light emitting surface of the group consisting of the element and the light emitting element for displaying blue can be configured to be arranged in a rectangular shape as a whole.

The display device of the present disclosure including the various preferable configurations described above can be configured to further include a color filter corresponding to the display color. For example, the display device may be further provided with a color filter corresponding to a light emitting element for red display, a light emitting element for green display, and a light emitting element for blue display.

In this case, the color filter can be configured to be arranged between the light emitting element and the optical element. Alternatively, the color filter may be configured to be located above the optical element.

The color filter can be configured to include a coloring material and / or fine particles constituting quantum dots. The color filter may be configured by using a well-known resist material to which a desired color material or the like is added. Well-known pigments and dyes can be used as the coloring material. Further, the fine particles constituting the quantum dots are not particularly limited, and for example, luminescent semiconductor nanoparticles can be used. A color filter containing a color material performs color display by transmitting light in a target wavelength range among the light from a light emitting element. Further, a color filter containing fine particles constituting quantum dots performs color display by converting the wavelength of light from a light emitting element.

In the display device of the present disclosure including the various preferable configurations described above, the light emitting element may be configured to include a light emitting unit including an organic electroluminescence element, an LED element, a semiconductor laser element, and the like. These can be constructed using well-known materials and methods. From the viewpoint of configuring a flat display device, it is preferable that the light emitting element includes a light emitting unit including an organic electroluminescence element.

In this case, the light emitting element can be configured to have a resonator structure that resonates light. Further, the light emitting element may include a drive circuit for controlling light emission. The light emitting element and the drive circuit can be connected via, for example, a conductive portion made of a via provided in an interlayer insulating film. By providing the resonator structure, the emission color of the light emitting element can be set to a predetermined display color, so that a color filter is basically unnecessary. However, in order to further improve the color purity of light having a long wavelength, the display device may be configured to further include a color filter corresponding to a light emitting element for displaying red. Alternatively, in order to improve the color purity of the display color as a whole, the display device is further provided with a color filter corresponding to a light emitting element for red display, a light emitting element for green display, and a light emitting element for blue display. It can also be.

In the display device of the present disclosure including the various preferable configurations described above, a transparent protective film may be formed on the entire surface including the optical element. As the material constituting the protective film, a suitable material may be appropriately selected from transparent organic materials and inorganic materials.

The light emitting elements arranged in a matrix are formed on a substrate, for example. As the constituent material of the substrate, a semiconductor material, a glass material, or a plastic material can be exemplified. When the drive circuit is configured by a transistor formed on a semiconductor substrate, for example, a well region may be provided on a semiconductor substrate made of silicon and a transistor may be formed in the well. On the other hand, when the drive circuit is configured by a thin film transistor or the like, a semiconductor thin film can be formed on the substrate made of a glass material or a plastic material to form the drive circuit. The various wirings can have well-known configurations and structures.

In the display device of the present disclosure, the configuration of the drive circuit or the like that controls the light emission of the light emitting element is not particularly limited. The light emitting element may be formed, for example, in a certain plane on the substrate, and may be arranged above the drive circuit for driving the light emitting element via, for example, an interlayer insulating layer. The configuration of the transistors constituting the drive circuit is not particularly limited. It may be a p-channel type field-effect transistor or an n-channel type field-effect transistor.

In the display device of the present disclosure, the light emitting element can be configured to be a so-called top light emitting type. For example, a light emitting device composed of an organic electroluminescence device is configured by sandwiching an organic layer including a hole transport layer, a light emitting layer, an electron transport layer, and the like between a first electrode and a second electrode. When the cathode is shared, the second electrode is the cathode electrode and the first electrode is the anode electrode.

The first electrode is provided for each light emitting element on the substrate. The first electrode can be configured by using a metal such as aluminum (Al), an aluminum alloy, platinum (Pt), gold (Au), chromium (Cr), tungsten (W), an alloy thereof, or the like. Alternatively, it may be composed of a transparent conductive material such as indium tin oxide (ITO) or indium zinc oxide (IZO). The second electrode is provided as a common electrode for each light emitting element, and is, for example, a mixed layer of magnesium (Mg) and silver (Ag), a metal such as silver (Ag), or indium tin oxide (ITO). It can be constructed using a conductive material such as indium zinc oxide (IZO).

The organic layer is formed by laminating a plurality of material layers and is provided on the entire surface including the first electrode as a common continuous film. The organic layer emits light when a voltage is applied between the first electrode and the second electrode. The organic layer can be composed of, for example, a structure in which a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer are sequentially laminated from the first electrode side. The hole transporting material, the hole transporting material, the electron transporting material, and the organic light emitting material constituting the organic layer are not particularly limited, and well-known materials can be used.

The organic layer may include a structure in which a plurality of light emitting layers are laminated. For example, a light emitting element that emits white light can be configured by stacking light emitting layers of red light emission, blue light emission, and green light emission, or by stacking light emission layers of blue light emission and yellow light emission. Alternatively, the light emitting layer may be painted separately for each light emitting element according to the color to be displayed.

The display device of the present disclosure may have a color display configuration. In some cases, a so-called monochrome display configuration may be used. In the case of monochrome display, one light emitting element constitutes one pixel.

Also, in the case of color display, one light emitting element constitutes one sub-pixel. For example, one pixel is composed of a plurality of sub-pixels, specifically, one pixel is composed of three types of sub-pixels: a red display sub-pixel, a green display sub-pixel, and a blue display sub-pixel. can do. Furthermore, a set of these three types of sub-pixels plus one or more types of sub-pixels (for example, a set of sub-pixels that emit white light to improve brightness, a color reproduction range). A set with a sub-pixel that emits complementary colors to expand, a set with a sub-pixel that emits yellow to expand the color reproduction range, and a set that emits yellow and cyan to expand the color reproduction range. It can also be composed of one set) including sub-pixels.

The partition wall portion that partitions the adjacent light emitting elements can be formed by using a material appropriately selected from known inorganic materials and organic materials, and is, for example, a physical vapor deposition method exemplified by a vacuum vapor deposition method or a sputtering method. It can be formed by a combination of a well-known film forming method such as (PVD method) and various chemical vapor deposition methods (CVD method) and a well-known patterning method such as an etching method and a lift-off method.

As the pixel values of the display device, VGA (640,480), S-VGA (800,600), XGA (1024,768), APRC (1152,900), S-XGA (1280,1024), Image display such as U-XGA (1600,1200), HD-TV (1920,1080), Q-XGA (2048,1536), (1920,1035), (720,480), (1280,960), etc. Some of the resolutions can be exemplified, but are not limited to these values.

As the electronic device provided with the display device of the present disclosure, various electronic devices having an image display function can be exemplified in addition to the direct-view type and projection type display devices.

The various conditions in this specification are satisfied not only when they are strictly satisfied but also when they are substantially satisfied. The presence of various design or manufacturing variations is acceptable. In addition, each drawing used in the following description is a schematic one and does not show actual dimensions or their ratios.

[First Embodiment and various configuration examples]
The first embodiment relates to a display device and an electronic device according to the present disclosure.

FIG. 1 is a schematic plan view for explaining the display device according to the first embodiment. The display device 1 includes various circuits such as a light emitting element PX arranged in a matrix, a horizontal drive circuit 11 for driving the light emitting element PX, and a vertical drive circuit 12. The reference numeral SCL is a scanning line for scanning the light emitting element PX, and the reference numeral DTL is a signal line for supplying various voltages to the light emitting element PX. Although the display device 1 also includes a feeder line or the like for supplying a drive voltage or the like to the pixels, it is omitted in FIG. 1 for convenience of illustration.

For example, M light emitting elements PX are arranged in a matrix, M in the horizontal direction (X direction in the figure) and N in the vertical direction (Y direction in the figure), for a total of M × N. The display device 1 is a display device capable of color display. The light emitting elements PX corresponding to the red display, the green display, and the blue display are shown with reference numerals R, G, and B, respectively. In the example shown in FIG. 1, the horizontal drive circuit 11 and the vertical drive circuit 12 are respectively arranged on one end side of the display device 1, but this is merely an example.

As will be described in detail later with reference to FIGS. 5 to 12, the light emitting element PX has a light emitting surface having a convex polygonal shape. The upper part of the light emitting element PX is independently provided corresponding to each light emitting element PX, and includes a portion having a shape that imitates the side of the light emitting surface, and the bottom surface or the upper surface of which the portion extends outside the region of the light emitting surface. It is covered by the optical element it has.

FIG. 2 is a schematic circuit diagram for explaining the configuration of the light emitting element. For convenience of illustration, the wiring relationship is shown for one light emitting element PX, more specifically, for the light emitting element PX in the mth row and the nth column.

The light emitting element PX includes a current-driven light emitting unit ELP and a drive circuit for controlling light emission of the light emitting unit ELP. This drive circuit includes at least a write transistor TR _W for writing a video signal and a drive transistor TR _D for passing a current through the light emitting unit ELP. These are composed of p-channel type transistors.

The drive circuit further includes a capacitance section _CS . The capacitance section C _S is used to hold the voltage of the gate electrode (so-called gate-source voltage) with respect to the source region of the drive transistor TR _D. When the light emitting element PX emits light, one source / drain region of the drive transistor TR _D (the side connected to the feeder line PS1 in FIG. 2) serves as a source region, and the other source / drain region serves as a drain region. ..

One electrode and the other electrode constituting the capacitance portion _{CS are connected to one source / drain region and the gate electrode of the drive transistor TR D} _, respectively. The other source / drain region of the drive transistor TR _D is connected to the anode electrode of the light emitting unit ELP.

The light emitting element PX includes a light emitting unit ELP composed of an organic electroluminescence element. The light emitting unit ELP is a current-driven light emitting unit whose emission brightness changes according to the flowing current value, and is a well-known unit including an anode electrode, a hole transport layer, a light emitting layer, an electron transport layer, a cathode electrode, and the like. It has a structure and structure.

The other end of the light emitting unit ELP (specifically, the cathode electrode) is connected to the common feeder line PS2. A predetermined voltage V _CATH (for example, ground potential) is supplied to the common feeder line PS2. The capacitance of the light emitting unit ELP is represented by the reference numeral C _EL . If the capacity C _EL of the light emitting unit ELP is small and causes a problem in driving, an auxiliary capacity connected in parallel to the light emitting unit ELP may be provided as necessary.

The write transistor TR _W has a gate electrode connected to the scanning line SCL, one source / drain region connected to the data line DTL, and the other source / drain region connected to the gate electrode of the drive transistor TR _D. Has. As a result, the signal voltage from the data line _DTL is written to the capacitance section CS via the write transistor TR _W.

As described above, the capacitive section C _S is connected between one source / drain region of the drive transistor TR _D and the gate electrode. A power supply voltage _VC C is applied to one source / drain region of the drive transistor TR _D from a power supply unit (not shown) via a feeder line PS1 _m . When the video signal voltage V _Sig from the data line DTL is written to the capacitance section C _S via the write transistor TR _W , the capacitance section C _S _{applies a voltage such as (VCC − V Sig} ₎ to the gate of the drive transistor TR _D. Hold as source voltage. The drain current _Ids represented by the following equation (1) flows through the drive transistor TR _D , and the light emitting unit ELP emits light with a brightness corresponding to the current value.

I _ds = k · μ · (( _VCC －V _Sig ) －｜ V _th ｜) ² (1)
still,
μ: Effective mobility L: Channel length W: Channel width V _th : Threshold voltage _Cox : (Relative permittivity of gate insulating layer) × (Vacuum permittivity) / (Thickness of gate insulating layer)
_k≡ (1/2) ・ (W / L) ・ Cox
And.

Next, I will explain the three-dimensional arrangement of the light emitting part ELP and the transistor. FIG. 3 is a schematic partial cross-sectional view of a substrate or the like for explaining the structure of the display device.

The display device 1 includes a substrate 100 and a light emitting element PX arranged in a matrix on the substrate 100. The light emitting unit ELP composed of an organic electroluminescence element is configured by sequentially laminating an organic layer 120 including a light emitting layer and a second electrode 121 on a first electrode 111 provided for each light emitting element PX. For convenience of illustration, the organic layer 120 is shown as a single layer in FIG. The organic layer 120 is formed so as to emit white light. A second electrode 121 made of, for example, a transparent conductive material is formed on the entire surface including the organic layer 120, and a protective layer 122 and a flattening layer 123 are further formed on the second electrode 121.

The first electrode 111 is made of, for example, a metal material, and the light emitted by the organic layer 120 is emitted from the second electrode 121 side. The planar shape of the light emitting surface of the light emitting element PX generally follows the planar shape of the first electrode 111. The light emitting element PX has a light emitting surface having a convex polygonal shape. Above the light emitting element, an optical element 140 independently provided corresponding to each light emitting element PX is arranged. The display device 1 further includes a color filter 130 corresponding to the display color. The color filter 130 is arranged between the light emitting element PX and the optical element 140.

A partition wall 112 made of an insulating material is provided between the adjacent first electrodes 111. As a result, each light emitting unit ELP is divided. Although not shown, a drive circuit provided for each light emitting unit ELP is formed on the substrate 100. The light emitting state of the light emitting unit ELP is controlled according to the signal from the outside.

The color filter 130 is formed on the flattening layer 123. Specifically, a red color filter 130 _R corresponding to the light emitting element PX for red display, a green color filter 130 _G corresponding to the light emitting element PX for green display, and a blue color filter corresponding to the light emitting element PX for blue display. 130 _B is arranged. As described above, the display device 1 includes at least a light emitting element such as a light emitting element PX for red display, a light emitting element PX for green display, and a light emitting element PX for blue display.

The optical element 140 independently provided corresponding to each light emitting element PX is arranged on the color filter 130. The cross-sectional shape when the optical element 140 is cut in a virtual plane orthogonal to the light emitting element PX is trapezoidal or semicircular. FIG. 3 shows an example in which the cross section of the optical element 140 is trapezoidal. Further, FIG. 4 shows an example in which the cross section of the optical element 140 is semicircular.

The display device 1 according to the first embodiment can be obtained by, for example, the following manufacturing process.

[Step-100]
The substrate 100 shown in FIG. 3 is prepared, and the first electrode 111 corresponding to each light emitting unit ELP is formed on the substrate 100. Next, the organic layer 120 including the light emitting layer, the second electrode 121, the protective layer 122, and the flattening layer 123 are sequentially formed.

[Process-110]
Next, the optical element 140 corresponding to each light emitting unit ELP is formed. First, the color filter 130 is formed on the flattening layer 123 by a well-known method. After that, a transparent material layer that is the basis of the optical element 140 is formed on the entire surface.

Next, a resist for forming an optical element is formed on the transparent material layer. Here, it is assumed that a trapezoidal resist is formed.

After that, for example, dry etching is performed to etch the resist and the transparent material layer. The thicker the resist, the smaller the amount of etching of the base, so that the trapezoidal optical element 140 is formed. If the resist is formed as a hemisphere, a trapezoidal optical element 140 is formed.

The example of the manufacturing process of the display device 1 has been described above. Next, the arrangement relationship between the light emitting element and the optical element will be described. FIG. 5A is a schematic partial plan view for explaining the arrangement relationship between the pixel and the optical element according to the first configuration example including a plurality of light emitting elements. FIG. 5B is a schematic perspective view for explaining the shape of the optical element.

In the example shown in FIG. 5A, four light emitting elements PX are arranged substantially in a square shape to form one pixel. In the figure, a light emitting element PX for red display is arranged in the upper left, blue display is arranged in the lower left and upper right, and green display is arranged in the lower right. The light emitting element PX for red display, the light emitting element PX for green display, and the light emitting element PX for blue display each have a rectangular light emitting surface. The portion of the light emitting surface of each light emitting element PX is shown with hatched diagonal lines. The same applies to other drawings described later.

Further, the group consisting of the light emitting element PX for red display, the light emitting element PX for green display, and the light emitting element PX for blue display is arranged in a rectangular shape as a whole.

Each light emitting element PX is provided with one optical element 140 corresponding to it. Above the light emitting element PX, an optical element 140 including a portion having a shape following the side of the light emitting surface and having a bottom surface extending the portion outside the region of the light emitting surface is covered. In FIG. 5A, the broken line indicates the side of the light emitting surface, and the alternate long and short dash line indicates the side of the bottom surface of the optical element 140. The same applies to other drawings described later.

The cross section of each optical element 140 is trapezoidal and shows the appearance as shown in FIG. 5B. Each optical element 140 can cover the entire light emitting surface, and more light from the organic film can be incident on the optical element 140. This makes it possible to improve the light extraction efficiency. As described above, it is possible to obtain a display device having an optical element above the light emitting element and having a structure capable of improving the light extraction efficiency.

Note that FIG. 5B shows an example in which the cross sections of the optical elements 140 are all trapezoidal, but this is only an example. For example, as shown in FIG. 6A, the cross sections of the optical elements 140 are all semicircular, and as shown in FIG. 6B, trapezoidal and semicircular cross sections are mixed. It may be.

The arrangement relationship between the pixels and the optical element according to the first configuration example has been described above. Subsequently, the arrangement relationship between the pixel and the optical element according to the second configuration example will be described.

FIG. 7A is a schematic partial plan view for explaining the arrangement relationship between the pixel and the optical element according to the second configuration example composed of a plurality of light emitting elements. FIG. 7B is a schematic perspective view for explaining the shape of the optical element.

In the example shown in FIG. 7A, three light emitting elements PX are arranged substantially in a square shape to form one pixel. In the figure, a light emitting element PX for red display is arranged in the upper left, green display is arranged in the lower left, and blue display is arranged in the right. In the blue display element PX, the side extending in the Y direction is a long side having a length corresponding to the side of the display element PX for red display and the side of the display element PX for green display. The light emitting element PX for red display, the light emitting element PX for green display, and the light emitting element PX for blue display each have a rectangular light emitting surface.

Also in the second configuration example, the group consisting of the light emitting element PX for red display, the light emitting element PX for green display, and the light emitting element PX for blue display is arranged in a rectangular shape as a whole.

Each light emitting element PX is provided with one optical element 140 corresponding to it. Above the light emitting element PX, an optical element 140 including a portion having a shape following the side of the light emitting surface and having a bottom surface extending the portion outside the region of the light emitting surface is covered.

The cross section of each optical element 140 is trapezoidal and shows the appearance as shown in FIG. 7B. Each optical element 140 can cover the entire light emitting surface, and more light from the organic film can be incident on the optical element 140. This makes it possible to improve the light extraction efficiency.

Note that FIG. 7B shows an example in which the cross sections of the optical elements 140 are all trapezoidal, but this is only an example. For example, as shown in FIG. 8A, the cross sections of the optical elements 140 are all semicircular, and as shown in FIG. 8B, trapezoidal and semicircular cross sections are mixed. It may be.

The arrangement relationship between the pixels and the optical element according to the second configuration example has been described above. Subsequently, the arrangement relationship between the pixel and the optical element according to the third configuration example will be described.

FIG. 9A is a schematic partial plan view for explaining the arrangement relationship between the pixel and the optical element according to the third configuration example including a plurality of light emitting elements. FIG. 9B is a schematic perspective view for explaining the shape of the optical element.

The third configuration example is a modification of the second configuration example, in which the light emitting portion of the light emitting element PX for blue display is divided. Specifically, the light emitting element PX for displaying blue has a configuration in which the first electrode 111 shown in FIG. 3 is divided and arranged.

One optical element 140 is provided so as to correspond to the light emitting element PX for red display and the light emitting element PX for green display. As for the light emitting element PX for displaying blue, an independent optical element 140 is arranged in each of the two light emitting units ELP corresponding to the divided first electrode 111.

The cross section of each optical element 140 is trapezoidal and shows the appearance as shown in FIG. 7B. As with the other configuration examples described above, even if the cross sections of the optical elements 140 are all semicircular, or if the cross sections are trapezoidal and semicircular. good.

The arrangement relationship between the pixels and the optical element according to the third configuration example has been described above. Subsequently, the arrangement relationship between the pixel and the optical element according to the fourth configuration example will be described.

FIG. 10A is a schematic partial plan view for explaining the arrangement relationship between the pixel and the optical element according to the fourth configuration example including a plurality of light emitting elements. FIG. 10B is a schematic perspective view for explaining the shape of the optical element.

In the example shown in FIG. 10A, three light emitting elements PX are arranged in a substantially triangular shape to form one pixel. The fourth configuration example is a so-called delta array configuration, in which a light emitting element PX for displaying blue is arranged on the upper side, for displaying green on the lower left side, and for displaying red on the lower right side. The light emitting element PX for red display, the light emitting element PX for green display, and the light emitting element PX for blue display each have a regular hexagonal light emitting surface.

The cross section of each optical element 140 is trapezoidal and shows the appearance as shown in FIG. 10B. As with the other configuration examples described above, even if the cross sections of the optical elements 140 are all semicircular, or if the cross sections are trapezoidal and semicircular. good.

The arrangement relationship between the pixels and the optical element according to the fourth configuration example has been described above. Subsequently, the arrangement relationship between the pixel and the optical element according to the fifth configuration example will be described.

FIG. 11A is a schematic partial plan view for explaining the arrangement relationship between the pixel and the optical element according to the fifth configuration example including a plurality of light emitting elements. FIG. 11B is a schematic perspective view for explaining the shape of the optical element. FIG. 12A is a schematic partial plan view for explaining the arrangement relationship between the pixels and the optical element according to the fifth configuration example, following FIG. 11. FIG. 12B is a schematic perspective view for explaining the shape of the optical element.

The fifth configuration example is a modification of the second configuration example, in which a plurality of optical elements are arranged on a light emitting element PX for displaying a specific color (here, a light emitting element PX for displaying blue). It is a composition such as being.

As described in the second configuration example, the light emitting element PX for displaying blue has a rectangular light emitting surface. Then, in the example shown in FIG. 11A, two optical elements 140 are provided side by side in the long side direction (Y direction in the figure) of the light emitting surface. The cross sections of the optical elements 140 are all trapezoidal and show the appearance as shown in FIG. 11B. Further, in the example shown in FIG. 12A, three optical elements 140 are provided side by side in the long side direction (Y direction in the figure) of the light emitting surface. The cross sections of the optical elements 140 are all trapezoidal and show the appearance as shown in FIG. 12B. As with the other configuration examples described above, even if the cross sections of the optical elements 140 are all semicircular, or if the cross sections are trapezoidal and semicircular. good.

Basically, the number of optical elements 140 to be arranged in the light emitting element PX for displaying a specific color may be appropriately set by an experiment or the like in consideration of the light extraction efficiency.

FIG. 13A is a schematic plan view for explaining the long side and the short side of the rectangular light emitting surface. FIG. 13B is a schematic graph for explaining the relationship between the dimensions of the long side and the number of optical elements when the light extraction efficiency is maximized.

As shown in FIG. 13A, the length of the long side of the rectangular light emitting surface is represented by the symbol L, and the length of the short side is represented by the symbol W. Reference numeral LA indicates a region where an optical element can be arranged. The inventors set various values of the length L of the long side by using an optical simulation, and obtained the number (number of divisions) of the optical elements 140 when the light extraction efficiency was the highest at that time. .. The graphed results are shown in FIG. 13B.

The graph shown in FIG. 13B is a linear function with a Y-intercept of about 0.1 and a slope of about 0.38. Therefore, basically, it tends to be preferable to increase the number of optical elements (number of divisions) as the length L of the long side becomes longer. When the length L of the long side is, for example, 8 micrometers, it is preferable to arrange three optical elements 140 in terms of light extraction efficiency. Further, when the length L of the long side is, for example, 13 micrometers, it is preferable to arrange five optical elements 140.

If there is not much difference between the length L of the long side and the length W of the short side of the rectangular light emitting surface, the optical element 140 may be divided and arranged in each of the long side direction and the short side direction. Conceivable. FIG. 14A is a schematic plan view for explaining a case where an optical element divided into a long side direction and a short side direction is arranged on a rectangular light emitting surface. FIG. 14B is a schematic perspective view for explaining the shape of the optical element.

[Second Embodiment]
The second embodiment also relates to a display device and an electronic device according to the present disclosure.

FIG. 15 is a schematic partial cross-sectional view of a substrate or the like for explaining the structure of the display device according to the second embodiment. In the schematic plan view for explaining the display device according to the second embodiment, the display device 1 may be read as the display device 2 in FIG.

In the first embodiment, the color filter is arranged between the light emitting element and the optical element. On the other hand, in the second embodiment, the color filter is arranged above the optical element.

The optical element 240 is arranged above the light emitting element PX via a packed bed 224 made of a transparent material. However, unlike the first embodiment, it is arranged so as to have a convex shape on the light emitting element PX side.

That is, the upper part of the light emitting element PX is provided independently corresponding to each light emitting element PX, and includes an optical portion having a shape that imitates the side of the light emitting surface, and the portion has an upper surface extending outside the region of the light emitting surface. It is covered by the element 240. The color filter 130 is arranged on the optical element 240 and the packed bed 224. FIG. 15 shows an example in which the cross section of the optical element 240 is trapezoidal. As in the first embodiment, the cross section of the optical element 240 may be semicircular. FIG. 16 shows an example in which the cross section of the optical element 240 is semicircular.

Regarding the arrangement relationship between the light emitting element PX and the optical element 240, the contents described with reference to FIGS. 5 to 12 may be appropriately read, except that the relationship between the bottom surface and the upper surface of the optical element 240 is exchanged, and thus the description thereof is omitted. do.

[Third Embodiment and various modifications]
A third embodiment also relates to a display device and an electronic device according to the present disclosure.

FIG. 17 is a schematic partial cross-sectional view of a substrate or the like for explaining the structure of the display device according to the third embodiment. In the schematic plan view for explaining the display device according to the third embodiment, the display device 1 may be read as the display device 3 in FIG.

Similar to the display device of the first embodiment, in the display device of the third embodiment, the light emitting element includes a light emitting unit composed of an organic electroluminescence element. However, in the display device of the third embodiment, the light emitting element has a resonator structure that resonates light.

The structure of the display device 3 will be described. Similar to the display device 1 of the first embodiment, the display device 3 includes a substrate 100 and a light emitting element PX arranged in a matrix on the substrate 100. Unlike the display device 1, in the display device 3, a reflective film ML made of, for example, aluminum or the like is formed on the substrate 100 at a position corresponding to each light emitting unit ELP.

The light emitting unit ELP composed of an organic electroluminescence element is configured by sequentially laminating an organic layer 120 including a light emitting layer and a second electrode 421 on a first electrode 411 provided for each light emitting element PX. The first electrode 411 is formed of a transparent conductive material such as ITO. A partition wall 112 made of an insulating material is provided between the adjacent first electrodes 411.

The organic layer 120 including the light emitting layer and the second electrode 421 are sequentially laminated on the entire surface including the first electrode 411 and the partition wall portion 112. The organic layer 120 is formed so as to emit white light. The second electrode 421 is formed of a semi-transmissive conductive material such as a metal thin film. A protective layer 122 and a flattening layer 123 are formed on the second electrode 421. The optical element 140 described in the first embodiment is formed on the flattening layer 123.

The resonator structure is formed by a microcavity structure in which the optical path length between the reflective film ML and the second electrode 421 is different for each display color. For example, the optical path length can be adjusted by forming the base on which the reflective film ML is formed by laminating a plurality of material layers and by making the number of layers of the base different according to the type of pixel PX. can. With the resonator structure, it is possible to emphasize and extract light having a specific wavelength among the white light of the organic layer 120. Therefore, the display device according to the third embodiment can basically perform color display without using a color filter.

The display device according to the third embodiment can be modified in various ways. Hereinafter, a modified example will be described.

FIG. 18 is a schematic partial cross-sectional view of a substrate or the like for explaining the structure of the display device according to the first modification of the third embodiment.

The display device 3A shown in FIG. 18 further includes a color filter corresponding to the light emitting element PX for red display, the light emitting element PX for green display, and the light emitting element PX for blue display with respect to the display device 3 shown in FIG. It is a configuration that is equipped.

Due to the characteristics of the resonator structure, the wavelength of the light extracted from the light emitting element PX for each display color may fluctuate to some extent. Therefore, in reality, some color mixing may occur in the display color of the light emitting element PX. Therefore, it is possible to improve the color purity by providing a color filter according to the display color.

FIG. 19 is a schematic partial cross-sectional view of a substrate or the like for explaining the structure of the display device according to the second modification of the third embodiment.

The display device 3B shown in FIG. 19 is configured to further include a color filter corresponding to the light emitting element PX for red display with respect to the display device 3 shown in FIG. In the example shown in the figure, it is assumed that the color filter 130 _T made of a colorless and transparent material is arranged in the light emitting element PX for displaying green and the light emitting element PX for displaying blue.

Basically, the longer the wavelength, the more likely it is that the color mixing of the light extracted by the resonator structure will occur. Therefore, in the display device 3B, a red color filter 130 _R is arranged only for the light emitting element PX for red display that emits red light having a relatively long wavelength.

In the display device according to the third embodiment including the various modifications described above, the arrangement relationship between the light emitting element PX and the optical element 140 may be appropriately read as described with reference to FIGS. 5 to 12. Therefore, the description is omitted. Further, the display device according to the third embodiment may also be configured such that the optical element is arranged between the light emitting element and the color filter as in the second embodiment.

[Description of electronic devices]
The display device of the present disclosure described above is used as a display unit (display device) of an electronic device in all fields for displaying a video signal input to an electronic device or a video signal generated in the electronic device as an image or a video. Can be used. As an example, it can be used as a display unit such as a television set, a digital still camera, a notebook personal computer, a portable terminal device such as a mobile phone, a video camera, and a head mount display (head-mounted display).

The display device of the present disclosure also includes a modular device having a sealed configuration. The display module may be provided with a circuit unit for inputting / outputting a signal or the like from the outside to the light emitting region, a flexible printed circuit (FPC), or the like. Hereinafter, a digital still camera and a head-mounted display will be illustrated as specific examples of the electronic device using the display device of the present disclosure. However, the specific examples exemplified here are only examples, and are not limited to these.

(Specific example 1)
FIG. 20 is an external view of an interchangeable lens single-lens reflex type digital still camera, the front view thereof is shown in FIG. 20A, and the rear view thereof is shown in FIG. 20B. The interchangeable-lens single-lens reflex type digital still camera has, for example, an interchangeable shooting lens unit (interchangeable lens) 512 on the front right side of the camera body (camera body) 511, and is held by the photographer on the front left side. It has a grip portion 513 for the purpose.

A monitor 514 is provided in the center of the back of the camera body 511. A view finder (eyepiece window) 515 is provided on the upper part of the monitor 514. By looking into the viewfinder 515, the photographer can visually recognize the optical image of the subject guided from the photographing lens unit 512 and determine the composition.

In the interchangeable-lens single-lens reflex type digital still camera having the above configuration, the display device of the present disclosure can be used as the viewfinder 515. That is, the interchangeable lens type single-lens reflex type digital still camera according to this example is manufactured by using the display device of the present disclosure as the viewfinder 515.

(Specific example 2)
FIG. 21 is an external view of the head-mounted display. The head-mounted display has, for example, ear hooks 612 for being worn on the user's head on both sides of the eyeglass-shaped display unit 611. In this head-mounted display, the display device of the present disclosure can be used as the display unit 611. That is, the head-mounted display according to this example is manufactured by using the display device of the present disclosure as the display unit 611.

(Specific example 3)
FIG. 22 is an external view of the see-through head-mounted display. The see-through head-mounted display 711 is composed of a main body 712, an arm 713, and a lens barrel 714.

The main body 712 is connected to the arm 713 and the glasses 700. Specifically, the end portion of the main body portion 712 in the long side direction is connected to the arm 713, and one side of the side surface of the main body portion 712 is connected to the eyeglasses 700 via a connecting member. The main body 712 may be directly attached to the head of the human body.

The main body 712 incorporates a control board for controlling the operation of the see-through head-mounted display 711 and a display unit. The arm 713 connects the main body 712 and the lens barrel 714, and supports the lens barrel 714. Specifically, the arm 713 is coupled to the end of the main body 712 and the end of the lens barrel 714, respectively, to fix the lens barrel 714. Further, the arm 713 has a built-in signal line for communicating data related to an image provided from the main body 712 to the lens barrel 714.

The lens barrel 714 projects the image light provided from the main body 712 via the arm 713 toward the eyes of the user who wears the see-through head-mounted display 711 through the eyepiece. In this see-through head-mounted display 711, the display device of the present disclosure can be used for the display unit of the main body unit 712.

It should be noted that the effects described in the present specification are merely examples and are not limited, and other effects may be obtained.

[Application example]
The technology according to the present disclosure can be applied to various products. For example, the technology according to the present disclosure is any kind of movement such as an automobile, an electric vehicle, a hybrid electric vehicle, a motorcycle, a bicycle, a personal mobility, an airplane, a drone, a ship, a robot, a construction machine, and an agricultural machine (tractor). It may be realized as a device mounted on the body.

FIG. 23 is a block diagram showing a schematic configuration example of a vehicle control system 7000, which is an example of a mobile control system to which the technique according to the present disclosure can be applied. The vehicle control system 7000 includes a plurality of electronic control units connected via a communication network 7010. In the example shown in FIG. 23, the vehicle control system 7000 includes a drive system control unit 7100, a body system control unit 7200, a battery control unit 7300, an outside information detection unit 7400, an in-vehicle information detection unit 7500, and an integrated control unit 7600. .. The communication network 7010 connecting these multiple control units conforms to any standard such as CAN (Controller Area Network), LIN (Local Interconnect Network), LAN (Local Area Network) or FlexRay (registered trademark). It may be an in-vehicle communication network.

Each control unit includes a microcomputer that performs arithmetic processing according to various programs, a storage unit that stores programs executed by the microcomputer or parameters used for various arithmetic, and a drive circuit that drives various controlled devices. To prepare for. Each control unit is provided with a network I / F for communicating with other control units via the communication network 7010, and is connected to devices or sensors inside or outside the vehicle by wired communication or wireless communication. A communication I / F for performing communication is provided. In FIG. 23, as the functional configuration of the integrated control unit 7600, the microcomputer 7610, the general-purpose communication I / F7620, the dedicated communication I / F7630, the positioning unit 7640, the beacon receiving unit 7650, the in-vehicle device I / F7660, the audio image output unit 7670, The vehicle-mounted network I / F 7680 and the storage unit 7690 are illustrated. Other control units also include a microcomputer, a communication I / F, a storage unit, and the like.

The drive system control unit 7100 controls the operation of the device related to the drive system of the vehicle according to various programs. For example, the drive system control unit 7100 has a driving force generator for generating the driving force of the vehicle such as an internal combustion engine or a driving motor, a driving force transmission mechanism for transmitting the driving force to the wheels, and a steering angle of the vehicle. It functions as a control device such as a steering mechanism for adjusting and a braking device for generating braking force of the vehicle. The drive system control unit 7100 may have a function as a control device such as ABS (Antilock Brake System) or ESC (Electronic Stability Control).

The vehicle state detection unit 7110 is connected to the drive system control unit 7100. The vehicle state detection unit 7110 may include, for example, a gyro sensor that detects the angular velocity of the axial rotation motion of the vehicle body, an acceleration sensor that detects the acceleration of the vehicle, an accelerator pedal operation amount, a brake pedal operation amount, or steering wheel steering. It includes at least one of sensors for detecting an angle, engine speed, wheel speed, and the like. The drive system control unit 7100 performs arithmetic processing using a signal input from the vehicle state detection unit 7110, and controls an internal combustion engine, a drive motor, an electric power steering device, a brake device, and the like.

The body system control unit 7200 controls the operation of various devices mounted on the vehicle body according to various programs. For example, the body system control unit 7200 functions as a keyless entry system, a smart key system, a power window device, or a control device for various lamps such as headlamps, back lamps, brake lamps, turn signals or fog lamps. In this case, a radio wave transmitted from a portable device that substitutes for a key or signals of various switches may be input to the body system control unit 7200. The body system control unit 7200 receives inputs of these radio waves or signals and controls a vehicle door lock device, a power window device, a lamp, and the like.

The battery control unit 7300 controls the secondary battery 7310, which is the power supply source of the drive motor, according to various programs. For example, information such as the battery temperature, the battery output voltage, or the remaining capacity of the battery is input to the battery control unit 7300 from the battery device including the secondary battery 7310. The battery control unit 7300 performs arithmetic processing using these signals, and controls the temperature control of the secondary battery 7310 or the cooling device provided in the battery device.

The vehicle outside information detection unit 7400 detects information outside the vehicle equipped with the vehicle control system 7000. For example, at least one of the image pickup unit 7410 and the vehicle exterior information detection unit 7420 is connected to the vehicle exterior information detection unit 7400. The image pickup unit 7410 includes at least one of a ToF (Time Of Flight) camera, a stereo camera, a monocular camera, an infrared camera, and other cameras. The vehicle outside information detection unit 7420 is used, for example, to detect the current weather or an environment sensor for detecting the weather, or other vehicles, obstacles, pedestrians, etc. around the vehicle equipped with the vehicle control system 7000. At least one of the ambient information detection sensors is included.

The environment sensor may be, for example, at least one of a raindrop sensor that detects rainy weather, a fog sensor that detects fog, a sunshine sensor that detects the degree of sunshine, and a snow sensor that detects snowfall. The ambient information detection sensor may be at least one of an ultrasonic sensor, a radar device, and a LIDAR (Light Detection and Ranging, Laser Imaging Detection and Ranging) device. The image pickup unit 7410 and the vehicle exterior information detection unit 7420 may be provided as independent sensors or devices, or may be provided as a device in which a plurality of sensors or devices are integrated.

Here, FIG. 24 shows an example of the installation position of the image pickup unit 7410 and the vehicle exterior information detection unit 7420. The

image pickup unit

7910, 7912, 7914, 7916, 7918 are provided, for example, at at least one of the front nose, side mirror, rear bumper, back door, and upper part of the windshield of the vehicle interior of the vehicle 7900. The image pickup unit 7910 provided in the front nose and the image pickup section 7918 provided in the upper part of the windshield in the vehicle interior mainly acquire an image in front of the vehicle 7900. The

image pickup units

7912 and 7914 provided in the side mirrors mainly acquire images of the side of the vehicle 7900. The image pickup unit 7916 provided in the rear bumper or the back door mainly acquires an image of the rear of the vehicle 7900. The image pickup unit 7918 provided on the upper part of the windshield in the vehicle interior is mainly used for detecting a preceding vehicle, a pedestrian, an obstacle, a traffic light, a traffic sign, a lane, or the like.

Note that FIG. 24 shows an example of the shooting range of each of the

imaging units

7910, 7912, 7914, 7916. The imaging range a indicates the imaging range of the imaging unit 7910 provided on the front nose, the imaging ranges b and c indicate the imaging range of the

imaging units

7912 and 7914 provided on the side mirrors, respectively, and the imaging range d indicates the imaging range d. The imaging range of the imaging unit 7916 provided on the rear bumper or the back door is shown. For example, by superimposing the image data captured by the

image pickup units

7910, 7912, 7914, 7916, a bird's-eye view image of the vehicle 7900 can be obtained.

The vehicle exterior

information detection unit

7920, 7922, 7924, 7926, 7928, 7930 provided on the front, rear, side, corner and the upper part of the windshield in the vehicle interior of the vehicle 7900 may be, for example, an ultrasonic sensor or a radar device. The vehicle exterior

information detection units

7920, 7926, 7930 provided on the front nose, rear bumper, back door, and upper part of the windshield in the vehicle interior of the vehicle 7900 may be, for example, a lidar device. These out-of-vehicle information detection units 7920 to 7930 are mainly used for detecting a preceding vehicle, a pedestrian, an obstacle, or the like.

Return to Fig. 23 and continue the explanation. The vehicle outside information detection unit 7400 causes the image pickup unit 7410 to capture an image of the outside of the vehicle and receives the captured image data. Further, the vehicle exterior information detection unit 7400 receives detection information from the connected vehicle exterior information detection unit 7420. When the vehicle exterior information detection unit 7420 is an ultrasonic sensor, a radar device, or a lidar device, the vehicle exterior information detection unit 7400 transmits ultrasonic waves, electromagnetic waves, or the like, and receives received reflected wave information. The out-of-vehicle information detection unit 7400 may perform object detection processing or distance detection processing such as a person, a vehicle, an obstacle, a sign, or a character on a road surface based on the received information. The out-of-vehicle information detection unit 7400 may perform an environment recognition process for recognizing rainfall, fog, road surface conditions, etc. based on the received information. The out-of-vehicle information detection unit 7400 may calculate the distance to an object outside the vehicle based on the received information.

Further, the vehicle outside information detection unit 7400 may perform image recognition processing or distance detection processing for recognizing a person, a vehicle, an obstacle, a sign, a character on the road surface, or the like based on the received image data. The vehicle exterior information detection unit 7400 performs processing such as distortion correction or alignment on the received image data, and synthesizes image data captured by different image pickup units 7410 to generate a bird's-eye view image or a panoramic image. May be good. The vehicle exterior information detection unit 7400 may perform the viewpoint conversion process using the image data captured by different image pickup units 7410.

The in-vehicle information detection unit 7500 detects the in-vehicle information. For example, a driver state detection unit 7510 that detects the state of the driver is connected to the in-vehicle information detection unit 7500. The driver state detection unit 7510 may include a camera that captures the driver, a biosensor that detects the driver's biological information, a microphone that collects sound in the vehicle interior, and the like. The biosensor is provided on, for example, on the seat surface or the steering wheel, and detects the biometric information of the passenger sitting on the seat or the driver holding the steering wheel. The in-vehicle information detection unit 7500 may calculate the degree of fatigue or concentration of the driver based on the detection information input from the driver state detection unit 7510, and may determine whether the driver is asleep. You may. The in-vehicle information detection unit 7500 may perform processing such as noise canceling processing on the collected audio signal.

The integrated control unit 7600 controls the overall operation in the vehicle control system 7000 according to various programs. An input unit 7800 is connected to the integrated control unit 7600. The input unit 7800 is realized by a device that can be input-operated by the occupant, such as a touch panel, a button, a microphone, a switch, or a lever. Data obtained by recognizing the voice input by the microphone may be input to the integrated control unit 7600. The input unit 7800 may be, for example, a remote control device using infrared rays or other radio waves, or an external connection device such as a mobile phone or a PDA (Personal Digital Assistant) corresponding to the operation of the vehicle control system 7000. You may. The input unit 7800 may be, for example, a camera, in which case the passenger can input information by gesture. Alternatively, data obtained by detecting the movement of the wearable device worn by the passenger may be input. Further, the input unit 7800 may include, for example, an input control circuit that generates an input signal based on the information input by the passenger or the like using the above input unit 7800 and outputs the input signal to the integrated control unit 7600. By operating the input unit 7800, the passenger or the like inputs various data to the vehicle control system 7000 and instructs the processing operation.

The storage unit 7690 may include a ROM (Read Only Memory) for storing various programs executed by the microcomputer, and a RAM (Random Access Memory) for storing various parameters, calculation results, sensor values, and the like. Further, the storage unit 7690 may be realized by a magnetic storage device such as an HDD (Hard Disc Drive), a semiconductor storage device, an optical storage device, an optical magnetic storage device, or the like.

The general-purpose communication I / F 7620 is a general-purpose communication I / F that mediates communication with various devices existing in the external environment 7750. General-purpose communication I / F7620 is a cellular communication protocol such as GSM (registered trademark) (Global System of Mobile communications), WiMAX, LTE (Long Term Evolution) or LTE-A (LTE-Advanced), or wireless LAN (Wi-Fi). Other wireless communication protocols such as (also referred to as (registered trademark)) and Bluetooth (registered trademark) may be implemented. The general-purpose communication I / F7620 connects to a device (for example, an application server or a control server) existing on an external network (for example, the Internet, a cloud network, or a business-specific network) via a base station or an access point, for example. You may. Further, the general-purpose communication I / F7620 uses, for example, P2P (Peer To Peer) technology, and is a terminal existing in the vicinity of the vehicle (for example, a driver, a pedestrian or a store terminal, or an MTC (Machine Type Communication) terminal). May be connected with.

The dedicated communication I / F 7630 is a communication I / F that supports a communication protocol formulated for use in a vehicle. The dedicated communication I / F7630 uses a standard protocol such as WAVE (Wireless Access in Vehicle Environment), DSRC (Dedicated Short Range Communications), which is a combination of the lower layer IEEE802.11p and the upper layer IEEE1609, or a cellular communication protocol. May be implemented. Dedicated communication I / F7630 is typically vehicle-to-vehicle (Vehicle to Vehicle) communication, road-to-vehicle (Vehicle to Infrastructure) communication, vehicle-to-house (Vehicle to Home) communication, and pedestrian-to-vehicle (Vehicle to Pedestrian) communication. ) Carry out V2X communication, a concept that includes one or more of the communications.

The positioning unit 7640 receives, for example, a GNSS signal from a GNSS (Global Navigation Satellite System) satellite (for example, a GPS signal from a GPS (Global Positioning System) satellite), executes positioning, and executes positioning, and the latitude, longitude, and altitude of the vehicle. Generate location information including. The positioning unit 7640 may specify the current position by exchanging signals with the wireless access point, or may acquire position information from a terminal such as a mobile phone, PHS, or smartphone having a positioning function.

The beacon receiving unit 7650 receives, for example, a radio wave or an electromagnetic wave transmitted from a radio station or the like installed on a road, and acquires information such as a current position, a traffic jam, a road closure, or a required time. The function of the beacon receiving unit 7650 may be included in the above-mentioned dedicated communication I / F 7630.

The in-vehicle device I / F 7660 is a communication interface that mediates the connection between the microcomputer 7610 and various in-vehicle devices 7760 existing in the vehicle. The in-vehicle device I / F7660 may establish a wireless connection using a wireless communication protocol such as wireless LAN, Bluetooth (registered trademark), NFC (Near Field Communication) or WUSB (Wireless USB). In addition, the in-vehicle device I / F7660 is connected via a connection terminal (and a cable if necessary) (not shown), USB (Universal Serial Bus), HDMI (registered trademark) (High-Definition Multimedia Interface), or MHL (Mobile). A wired connection such as High-definition Link) may be established. The in-vehicle device 7760 may include, for example, at least one of a passenger's mobile device or wearable device, or information device carried in or attached to the vehicle. Further, the in-vehicle device 7760 may include a navigation device that searches for a route to an arbitrary destination. The in-vehicle device I / F 7660 exchanges a control signal or a data signal with these in-vehicle devices 7760.

The in-vehicle network I / F7680 is an interface that mediates communication between the microcomputer 7610 and the communication network 7010. The vehicle-mounted network I / F7680 transmits / receives signals and the like according to a predetermined protocol supported by the communication network 7010.

The microcomputer 7610 of the integrated control unit 7600 is via at least one of general-purpose communication I / F7620, dedicated communication I / F7630, positioning unit 7640, beacon receiving unit 7650, in-vehicle device I / F7660, and in-vehicle network I / F7680. The vehicle control system 7000 is controlled according to various programs based on the information acquired. For example, the microcomputer 7610 calculates the control target value of the driving force generator, the steering mechanism, or the braking device based on the acquired information inside and outside the vehicle, and outputs a control command to the drive system control unit 7100. May be good. For example, the microcomputer 7610 realizes ADAS (Advanced Driver Assistance System) functions including vehicle collision avoidance or impact mitigation, follow-up driving based on inter-vehicle distance, vehicle speed maintenance driving, vehicle collision warning, vehicle lane deviation warning, and the like. Cooperative control may be performed for the purpose of. In addition, the microcomputer 7610 automatically travels autonomously without relying on the driver's operation by controlling the driving force generator, steering mechanism, braking device, etc. based on the acquired information on the surroundings of the vehicle. Coordinated control may be performed for the purpose of driving or the like.

The microcomputer 7610 has information acquired via at least one of a general-purpose communication I / F7620, a dedicated communication I / F7630, a positioning unit 7640, a beacon receiving unit 7650, an in-vehicle device I / F7660, and an in-vehicle network I / F7680. Based on the above, three-dimensional distance information between the vehicle and an object such as a surrounding structure or a person may be generated, and local map information including the peripheral information of the current position of the vehicle may be created. Further, the microcomputer 7610 may predict the danger of a vehicle collision, a pedestrian or the like approaching or entering a closed road, and generate a warning signal based on the acquired information. The warning signal may be, for example, a signal for generating a warning sound or lighting a warning lamp.

The audio image output unit 7670 transmits an output signal of at least one of audio and image to an output device capable of visually or audibly notifying information to the passenger or the outside of the vehicle. In the example of FIG. 23, an audio speaker 7710, a display unit 7720, and an instrument panel 7730 are exemplified as output devices. The display unit 7720 may include, for example, at least one of an onboard display and a head-up display. The display unit 7720 may have an AR (Augmented Reality) display function. The output device may be other devices such as headphones, wearable devices such as eyeglass-type displays worn by passengers, projectors or lamps other than these devices. When the output device is a display device, the display device displays the results obtained by various processes performed by the microcomputer 7610 or the information received from other control units in various formats such as texts, images, tables, and graphs. Display visually. When the output device is an audio output device, the audio output device converts an audio signal composed of reproduced audio data, acoustic data, or the like into an analog signal and outputs the audio signal audibly.

In the example shown in FIG. 23, at least two control units connected via the communication network 7010 may be integrated as one control unit. Alternatively, each control unit may be composed of a plurality of control units. Further, the vehicle control system 7000 may include another control unit (not shown). Further, in the above description, the other control unit may have a part or all of the functions carried out by any of the control units. That is, as long as information is transmitted and received via the communication network 7010, predetermined arithmetic processing may be performed by any of the control units. Similarly, a sensor or device connected to any control unit may be connected to another control unit, and a plurality of control units may send and receive detection information to and from each other via the communication network 7010. ..

The technique according to the present disclosure can be applied to, for example, the display unit of an output device capable of visually or audibly notifying information among the configurations described above.

[others]
The technology disclosed in the present disclosure can also have the following configurations.

[A1]
It contains light emitting elements arranged in a matrix and contains light emitting elements.
The light emitting element has a convex polygonal light emitting surface, and has a light emitting surface.
The upper part of the light emitting element is provided independently corresponding to each light emitting element, and includes an optical element having a bottom surface or an upper surface that includes a portion having a shape that imitates the side of the light emitting surface and the portion extends outside the region of the light emitting surface. Covered,
Display device.
[A2]
The cross-sectional shape when the optical element is cut in a virtual plane orthogonal to the light emitting element is trapezoidal or semicircular.
The display device according to the above [A1].
[A3]
The light emitting surface of the light emitting element has a rectangular shape or a regular hexagonal shape.
The display device according to the above [A1] or [A2].
[A4]
Each light emitting element is provided with at least one optical element corresponding to it.
The display device according to any one of the above [A1] to [A3].
[A5]
The display device includes at least a light emitting element for red display, a light emitting element for green display, and a light emitting element for blue display.
The display device according to any one of the above [A1] to [A4].
[A6]
The display device according to the above [A5], wherein a plurality of optical elements are provided so as to correspond to each light emitting element for displaying a specific color.
[A7]
The light emitting element for displaying a specific color has a rectangular light emitting surface, and has a rectangular light emitting surface.
A plurality of optical elements are provided side by side in the long side direction of the light emitting surface.
The display device according to the above [A6].
[A8]
Each light emitting element for blue display is provided so as to correspond to a plurality of optical elements.
The display device according to the above [A6] or [A7].
[A9]
The group consisting of a light emitting element for red display, a light emitting element for green display, and a light emitting element for blue display is arranged in a rectangular shape as a whole.
The display device according to any one of the above [A5] to [A8].
[A10]
The display device further includes a color filter corresponding to the display color.
The display device according to any one of the above [A5] to [A9].
[A11]
The color filter is arranged between the light emitting element and the optical element.
The display device according to the above [A10].
[A12]
The color filter is located above the optical element,
The display device according to the above [A10].
[A13]
The light emitting device includes a light emitting unit composed of an organic electroluminescence device.
The display device according to the above [A1] to [A12].
[A14]
The light emitting element has a resonator structure that resonates light.
The display device according to the above [A13].
[A15]
The display device further includes a color filter corresponding to a light emitting element for displaying red.
The display device according to the above [A14].
[A16]
The display device further includes a light emitting element for red display, a light emitting element for green display, and a color filter corresponding to the light emitting element for blue display.
The display device according to the above [A14].

[B1]
It contains light emitting elements arranged in a matrix and contains light emitting elements.
The light emitting element has a convex polygonal light emitting surface, and has a light emitting surface.
The upper part of the light emitting element is provided independently corresponding to each light emitting element, and includes an optical element having a bottom surface or an upper surface that includes a portion having a shape that imitates the side of the light emitting surface and the portion extends outside the region of the light emitting surface. Covered,
An electronic device equipped with a display device.
[B2]
The cross-sectional shape when the optical element is cut in a virtual plane orthogonal to the light emitting element is trapezoidal or semicircular.
The electronic device according to the above [B1].
[B3]
The light emitting surface of the light emitting element has a rectangular shape or a regular hexagonal shape.
The electronic device according to the above [B1] or [B2].
[B4]
Each light emitting element is provided with at least one optical element corresponding to it.
The electronic device according to any one of the above [B1] to [B3].
[B5]
The display device includes at least a light emitting element for red display, a light emitting element for green display, and a light emitting element for blue display.
The electronic device according to any one of the above [B1] to [B4].
[B6]
The electronic device according to the above [B5], wherein a plurality of optical elements are provided so as to correspond to each light emitting element for displaying a specific color.
[B7]
The light emitting element for displaying a specific color has a rectangular light emitting surface, and has a rectangular light emitting surface.
A plurality of optical elements are provided side by side in the long side direction of the light emitting surface.
The electronic device according to the above [B6].
[B8]
Each light emitting element for blue display is provided so as to correspond to a plurality of optical elements.
The electronic device according to the above [B6] or [B7].
[B9]
The group consisting of a light emitting element for red display, a light emitting element for green display, and a light emitting element for blue display is arranged in a rectangular shape as a whole.
The electronic device according to any one of the above [B5] to [B8].
[B10]
The display device further includes a color filter corresponding to the display color.
The electronic device according to any one of the above [B5] to [B9].
[B11]
The color filter is arranged between the light emitting element and the optical element.
The electronic device according to the above [B10].
[B12]
The color filter is located above the optical element,
The electronic device according to the above [B10].
[B13]
The light emitting device includes a light emitting unit composed of an organic electroluminescence device.
The electronic device according to the above [B1] to [B12].
[B14]
The light emitting element has a resonator structure that resonates light.
The electronic device according to the above [B13].
[B15]
The display device further includes a color filter corresponding to a light emitting element for displaying red.
The electronic device according to the above [B14].
[B16]
The display device further includes a light emitting element for red display, a light emitting element for green display, and a color filter corresponding to the light emitting element for blue display.
The electronic device according to the above [B14].

1,2,3,3A, 3B ... Display device, 100 ... Substrate, 111 ... First electrode, 112 ... Bulk partition, 121 ... Second electrode, 122 ... Protective layer , 123 ... Flattening layer, 130, 130 _R , 130 _B , 130 _G , 130 _T ... Color filter, 140 ... Optical element, 224 ... Filling layer, 240 ... Optical element, 411 ... 1st electrode, 421 ... 2nd electrode, 511 ... Camera body, 512 ... Shooting lens unit, 513 ... Grip, 514 ... Monitor, 515 ... Viewfinder , 611 ... Eyeglass-shaped display, 612 ... Ear hook, 700 ... Glasses, 711 ... See-through head-mounted display, 712 ... Main body, 713 ... Arm, 714 ... -Lens barrel, ELP: light emitting element, LA: area where optical elements can be placed, ML: reflective film

Claims

It contains light emitting elements arranged in a matrix and contains light emitting elements.
The light emitting element has a convex polygonal light emitting surface, and has a light emitting surface.
The upper part of the light emitting element is provided independently corresponding to each light emitting element, and includes an optical element having a bottom surface or an upper surface that includes a portion having a shape that imitates the side of the light emitting surface and the portion extends outside the region of the light emitting surface. Covered,
Display device.
The cross-sectional shape when the optical element is cut in a virtual plane orthogonal to the light emitting element is trapezoidal or semicircular.
The display device according to claim 1.
The light emitting surface of the light emitting element has a rectangular shape or a regular hexagonal shape.
The display device according to claim 1.
Each light emitting element is provided with at least one optical element corresponding to it.
The display device according to claim 1.
The display device includes at least a light emitting element for red display, a light emitting element for green display, and a light emitting element for blue display.
The display device according to claim 1.
The display device according to claim 5, wherein each light emitting element for displaying a specific color is provided so as to correspond to a plurality of optical elements.
The light emitting element for displaying a specific color has a rectangular light emitting surface, and has a rectangular light emitting surface.
A plurality of optical elements are provided side by side in the long side direction of the light emitting surface.
The display device according to claim 6.
Each light emitting element for blue display is provided so as to correspond to a plurality of optical elements.
The display device according to claim 6.
The group consisting of a light emitting element for red display, a light emitting element for green display, and a light emitting element for blue display is arranged in a rectangular shape as a whole.
The display device according to claim 5.
The display device further includes a color filter corresponding to the display color.
The display device according to claim 5.
The color filter is arranged between the light emitting element and the optical element.
The display device according to claim 10.
The color filter is located above the optical element,
The display device according to claim 10.
The light emitting device includes a light emitting unit composed of an organic electroluminescence device.
The display device according to claim 1.
The light emitting element has a resonator structure that resonates light.
The display device according to claim 13.
The display device further includes a color filter corresponding to a light emitting element for displaying red.
The display device according to claim 14.
The display device further includes a light emitting element for red display, a light emitting element for green display, and a color filter corresponding to the light emitting element for blue display.
The display device according to claim 14.
It contains light emitting elements arranged in a matrix and contains light emitting elements.
The light emitting element has a convex polygonal light emitting surface, and has a light emitting surface.
The upper part of the light emitting element is provided independently corresponding to each light emitting element, and includes an optical element having a bottom surface or an upper surface that includes a portion having a shape that imitates the side of the light emitting surface and the portion extends outside the region of the light emitting surface. Covered,
An electronic device equipped with a display device.