Display device

Abstract

To provide a display device capable of limiting a viewing angle.SOLUTION: A display device in an embodiment includes a substrate, a first light-emitting element and a second light-emitting element that are disposed over the substrate and are adjacent to each other in a first direction, a lower part surrounding each of the first light-emitting element and the second light-emitting element, an upper part disposed over the lower part, and a plurality of lenses formed in a convex shape projecting to the side opposite to the substrate. The upper part includes a first opening that is surrounded by an edge part projecting from a side surface of the lower part, and overlaps the first light-emitting element, and a second opening that overlaps the second light-emitting element. The plurality of lenses include a first lens overlapping the first opening and the second opening.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] Embodiments of the present invention relate to a display device.

Background Art

[0002] In recent years, various forms of display devices have been proposed. For example, in a display device mounted on a vehicle such as an automobile, viewing angle control that allows different images to be viewed on the driver's seat side and the passenger seat side is required.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a display device capable of restricting a viewing angle.

Means for Solving the Problems

[0005] According to one embodiment, a display device includes a substrate, a first light-emitting element and a second light-emitting element disposed above the substrate and adjacent to each other in a first direction, a lower part surrounding each of the first light-emitting element and the second light-emitting element, an upper part disposed on the lower part, and a plurality of lenses formed in a convex shape protruding to the side opposite to the substrate, the upper part is surrounded by an edge protruding from a side surface of the lower part and has a first opening overlapping the first light-emitting element and a second opening overlapping the second light-emitting element, and the plurality of lenses include a first lens overlapping the first opening and the second opening.

Brief Description of the Drawings

[0006]

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DETAILED DESCRIPTION OF THE INVENTION

[0007] Some embodiments will be described with reference to the drawings. The disclosure is merely an example, and for those that can be easily conceived by those skilled in the art as appropriate modifications while maintaining the gist of the invention, they are naturally included in the scope of the present invention. In addition, for the purpose of making the description clearer, the drawings may schematically represent the width, thickness, shape, etc. of each part compared to the actual embodiment, but it is merely an example and does not limit the interpretation of the present invention. Also, in this specification and each drawing, components that exhibit the same or similar functions as those described above with respect to the previously presented drawings may be assigned the same reference numerals, and detailed descriptions that are repeated may be omitted as appropriate.

[0008] In addition, in the drawings, for the purpose of facilitating understanding as necessary, the X-axis, Y-axis, and Z-axis that are perpendicular to each other are described. The direction along the X-axis is referred to as the first direction X, the direction along the Y-axis is referred to as the second direction Y, and the direction along the Z-axis is referred to as the third direction Z. Looking at various elements parallel to the third direction Z is referred to as a plan view.

[0009] The display device according to the present embodiment is an organic electroluminescence display device including an organic light-emitting diode (OLED) as a display element, and can be mounted on a television, a personal computer, in-vehicle equipment, a tablet terminal, a smartphone, a mobile phone terminal, and the like.

[0010] FIG. 1 is a diagram showing a configuration example of a display device DSP according to an embodiment. The display device DSP includes a display panel PNL having a display area DA for displaying an image and a peripheral area SA outside the display area DA on an insulating substrate 10. The substrate 10 may be glass or a resin film having flexibility.

[0011] In FIG. 1, the shape of the substrate 10 in plan view is a rectangle having a long side parallel to the first direction X. However, the shape of the substrate 10 in plan view is not limited to this example, and may be other shapes such as a rectangle having a long side parallel to the second direction Y, a square, a circle, or an ellipse.

[0012] The display area DA includes a plurality of pixels PX arranged in a matrix in the first direction X and the second direction Y. The pixel PX includes a plurality of sub-pixels SP. In one example, the pixel PX includes a sub-pixel SP1 of a first color, a sub-pixel SP2 of a second color, and a sub-pixel SP3 of a third color. The first color, the second color, and the third color are different from each other. Note that the pixel PX may include sub-pixels SP of other colors such as white, together with or instead of the sub-pixels SP1, SP2, and SP3.

[0013] The sub-pixel SP includes a pixel circuit 1 and a display element DE driven by the pixel circuit 1. The pixel circuit 1 includes a pixel switch 2, a driving transistor 3, and a capacitor 4. The pixel switch 2 and the driving transistor 3 are switching elements constituted by, for example, thin film transistors.

[0014] The gate electrode of the pixel switch 2 is connected to the scanning line GL. One of the source electrode and the drain electrode of the pixel switch 2 is connected to the signal line SL, and the other is connected to the gate electrode of the driving transistor 3 and the capacitor 4. In the driving transistor 3, one of the source electrode and the drain electrode is connected to the power supply line PL and the capacitor 4, and the other is connected to the anode of the display element DE.

[0015] Note that the configuration of the pixel circuit 1 is not limited to the illustrated example. For example, the pixel circuit 1 may include more thin film transistors and capacitors.

[0016] The display element DE is an organic light emitting diode (OLED) as a light emitting element, and may be referred to as an organic EL element.

[0017] Although not described in detail, terminals for connecting an IC chip and a flexible printed circuit board are provided in the peripheral area SA.

[0018] FIG. 2 is a schematic plan view showing an example of the layout of sub-pixels SP1, SP2, and SP3. In the example of FIG. 2, sub-pixels SP2 and SP3 are arranged in the second direction Y. Sub-pixels SP1 and SP2 are arranged in the first direction X, and sub-pixels SP1 and SP3 are arranged in the first direction X.

[0019] Note that the layout of sub-pixels SP1, SP2, and SP3 is not limited to the example of FIG. 2. As another example, although details will be described later, as shown in FIG. 21, sub-pixels SP1, SP3, and SP2 in each pixel PX may be arranged in order in the first direction X.

[0020] In the display area DA, an inorganic insulating layer 5 and a partition wall 6 are arranged. The inorganic insulating layer 5 has openings A51, A52, and A53 in sub-pixels SP1, SP2, and SP3, respectively. The inorganic insulating layer 5 having these openings A51, A52, and A53 may be referred to as a rib.

[0021] The partition wall 6 overlaps the inorganic insulating layer 5 in a plan view. The partition wall 6 is formed in a lattice shape surrounding the openings A51, A52, and A53. The partition wall 6 has openings A61, A62, and A63 surrounded by the upper edge portions of the partition wall 6 described later with reference to FIG. 4. The opening A61 (first opening) surrounds the opening A51 in the sub-pixel SP1. The opening A62 (second opening) surrounds the opening A52 in the sub-pixel SP2. The opening A63 (third opening) surrounds the opening A53 in the sub-pixel SP3. In the example of FIG. 2, the corners of each of the openings A51, A52, A53 and the openings A61, A62, A63 are formed in a round shape, but may be formed at right angles, or each of the openings A51, A52, A53 and the openings A61, A62, A63 may be formed in other shapes such as a circular shape or an elliptical shape. The partition wall 6 has conductivity and is electrically connected to a terminal having a common potential among a plurality of terminals provided in the peripheral area SA shown in FIG. 1.

[0022] The sub-pixels SP1, SP2, and SP3 each include display elements DE1, DE2, and DE3 as display elements DE. The display elements DE1, DE2, and DE3 each have a light-emitting layer formed of a material that emits light of different colors.

[0023] The display element DE1 (first light-emitting element) of the sub-pixel SP1 includes a lower electrode LE1, an upper electrode UE1, and an organic layer OR1 that respectively overlap the openings A51 and A61. The display element DE1 including the lower electrode LE1, the organic layer OR1, and the upper electrode UE1 is surrounded by the opening A61 in plan view. The peripheral portions of each of the lower electrode LE1, the organic layer OR1, and the upper electrode UE1 overlap the inorganic insulating layer 5 in plan view. The organic layer OR1 includes, for example, a light-emitting layer that emits light in the green wavelength range.

[0024] The display element DE2 (second light-emitting element) of the sub-pixel SP2 includes a lower electrode LE2, an upper electrode UE2, and an organic layer OR2 that respectively overlap the openings A52 and A62. The display element DE2 including the lower electrode LE2, the organic layer OR2, and the upper electrode UE2 is surrounded by the opening A62 in plan view. The display element DE2 is adjacent to the display element DE1 along the first direction X. The peripheral portions of each of the lower electrode LE2, the organic layer OR2, and the upper electrode UE2 overlap the inorganic insulating layer 5 in plan view. The organic layer OR2 includes, for example, a light-emitting layer that emits light in the blue wavelength range.

[0025] The display element DE3 (third light-emitting element) of the sub-pixel SP3 includes a lower electrode LE3, an upper electrode UE3, and an organic layer OR3 that respectively overlap the openings A53 and A63. The display element DE3 including the lower electrode LE3, the organic layer OR3, and the upper electrode UE3 is surrounded by the opening A63 in plan view. The display element DE3 is adjacent to the display element DE1 along the first direction X and is also adjacent to the display element DE2 along the second direction Y. The peripheral portions of each of the lower electrode LE3, the organic layer OR3, and the upper electrode UE3 overlap the inorganic insulating layer 5 in plan view. The organic layer OR3 includes, for example, a light-emitting layer that emits light in the red wavelength range.

[0026] In the example of FIG. 2, the outer shapes of the lower electrodes LE1, LE2, and LE3 are indicated by dotted lines, and the outer shapes of the organic layers OR1, OR2, OR3, and the upper electrodes UE1, UE2, UE3 are indicated by dashed lines. Note that the outer shapes of the illustrated lower electrodes, organic layers, and upper electrodes do not necessarily reflect the exact shapes.

[0027] The lower electrodes LE1, LE2, and LE3 correspond to, for example, the anode of the display element. The upper electrodes UE1, UE2, and UE3 correspond to the cathode or the common electrode of the display element and are in contact with the partition wall 6.

[0028] In the example of FIG. 2, the areas of the openings A51, A52, and A53 are different from each other. The area of the opening A51 is larger than the area of the opening A52, and the area of the opening A52 is larger than the area of the opening A53. In other words, the area of the lower electrode LE1 exposed from the opening A51 is larger than the area of the lower electrode LE2 exposed from the opening A52, and the area of the lower electrode LE2 exposed from the opening A52 is larger than the area of the lower electrode LE3 exposed from the opening A53. Note that the size relationship of the areas of the openings A51, A52, and A53 is not limited to the illustrated example.

[0029] Similarly, in the example of FIG. 2, the areas of the openings A61, A62, and A63 are different from each other. The area of the opening A61 is larger than the area of the opening A62, and the area of the opening A62 is larger than the area of the opening A63. Note that the size relationship of the areas of the openings A61, A62, and A63 is not limited to the illustrated example.

[0030] FIG. 3 is a plan view showing an example of the layout of the openings A61, A62, A63 and the lens ML1. Note that in FIG. 3, the illustration of the lower electrodes, organic layers, upper electrodes, etc. that constitute the display elements of each sub-pixel is omitted.

[0031] In the opening A61, the edge of the partition wall 6 includes the opening edges AE1 and AE2. The opening edges AE1 and AE2 are parallel to the second direction Y. The opening edges AE1 and AE2 face each other in the first direction X.

[0032] In the opening A62, the edge of the partition wall 6 includes the opening edges AE3 and AE4. The opening edges AE3 and AE4 are parallel to the second direction Y. The opening edges AE3 and AE4 face each other in the first direction X.

[0033] In the opening A63, the edge of the partition wall 6 includes the opening edges AE5 and AE6. The opening edges AE5 and AE6 are parallel to the second direction Y. The opening edges AE5 and AE6 face each other in the first direction X.

[0034] The display device DSP further includes a lens ML1 (first lens). The lens ML1 extends in the second direction Y, overlaps with the openings A61, A62, and A63, and overlaps with the display elements DE1, DE2, and DE3. In the example of FIG. 3, the lens ML1 covers the openings A61, A62, and A63.

[0035] The lens ML1 has a lens edge ME1 (first lens edge), ME2 (second lens edge), and a center line MC1. The lens edges ME1, ME2, and the center line MC1 are parallel to the second direction Y. In the illustrated example, the lens edges ME1 and ME2 overlap the partition wall 6 in a plan view. Also, the center line MC1 overlaps the partition wall 6 in a plan view and is located between the opening edge AE1 and the opening edge AE4, and between the opening edge AE1 and the opening edge AE6 in the first direction X. The opening A61 and the display element DE1 are located between the lens edge ME2 and the center line MC1 in the first direction X. The opening A62 and the display element DE2, and the opening A63 and the display element DE3 are located between the lens edge ME1 and the center line MC1 in the first direction X.

[0036] In this specification, the center line of a lens is a line connecting a plurality of principal points of the lens. The principal point is a point where the principal plane of the lens and the optical axis are orthogonal. The principal plane is a plane orthogonal to the optical axis including the intersection points of the incident light ray parallel to the optical axis before and after passing through the lens.

[0037] FIG. 4 is a cross-sectional view showing a configuration example of the display device DSP along the line A-A' in FIG. 3. In the following, the sub-pixels SP1 and SP2 will be described, but the sub-pixel SP3 shown in FIG. 2 is also configured in the same manner as the sub-pixels SP1 and SP2.

[0038] The circuit layer 11 is disposed on the substrate 10. The circuit layer 11 includes various circuits such as the pixel circuit 1 shown in FIG. 1, and various wirings such as the scanning line GL, the signal line SL, and the power line PL. The circuit layer 11 is covered by an insulating layer 12. The insulating layer 12 is an organic insulating layer that planarizes the unevenness generated by the circuit layer 11.

[0039] The lower electrodes LE1 and LE2 are disposed on the insulating layer 12 and are spaced apart from each other. The inorganic insulating layer 5 is disposed on the insulating layer 12 and the lower electrodes LE1 and LE2. The opening A51 of the inorganic insulating layer 5 overlaps the lower electrode LE1, and the opening A52 overlaps the lower electrode LE2. The peripheral portions of the lower electrodes LE1 and LE2 are covered by the inorganic insulating layer 5. Between the adjacent lower electrodes among the lower electrodes LE1 and LE2, the insulating layer 12 is covered by the inorganic insulating layer 5. The lower electrodes LE1 and LE2 are connected to the respective pixel circuits 1 of the sub-pixels SP1 and SP2 through contact holes provided in the insulating layer 12. Note that the contact holes in the insulating layer 12 are omitted in FIG. 4.

[0040] The partition wall 6 includes a conductive lower portion 61 disposed on the inorganic insulating layer 5 and an upper portion 62 disposed on the lower portion 61. The lower portion 61 surrounds the display elements DE1 and DE2 in plan view. The upper portion 62 has an edge portion AE that surrounds the openings A61 and A62 in plan view. The edge portion AE protrudes more than the side surface of the lower portion 61. Such a shape of the partition wall 6 is called an overhang shape.

[0041] In the illustrated example, the lower part 61 has a first conductive layer 63 disposed on the inorganic insulating layer 5 and a second conductive layer 64 disposed on the first conductive layer 63. For example, the first conductive layer 63 is formed thinner than the second conductive layer 64. Also, in the illustrated example, both ends of the first conductive layer 63 protrude from the side surfaces of the second conductive layer 64.

[0042] The upper part 62 has a thin film 65 disposed on the second conductive layer 64 and a thin film 66 disposed on the thin film 65. Both ends of the thin film 65 and the thin film 66 protrude from the side surfaces of the second conductive layer 64. In the illustrated example, the edge AE of the thin film 65 surrounds the openings A61 and A62. The edge AE corresponds to, for example, the end of the thin film 65.

[0043] The organic layer OR1 contacts the lower electrode LE1 through the opening A51, covers the lower electrode LE1 exposed from the opening A51, and its peripheral portion is located on the inorganic insulating layer 5. The upper electrode UE1 covers the organic layer OR1 and contacts the lower part 61.

[0044] The organic layer OR2 contacts the lower electrode LE2 through the opening A52, covers the lower electrode LE2 exposed from the opening A52, and its peripheral portion is located on the inorganic insulating layer 5. The upper electrode UE2 covers the organic layer OR2 and contacts the lower part 61.

[0045] In the example of FIG. 4, the sub-pixel SP1 has a cap layer CP1 and a first sealing layer SE11, and the sub-pixel SP2 has a cap layer CP2 and a first sealing layer SE12. The cap layers CP1 and CP2 each serve as an optical adjustment layer for improving the light extraction efficiency of the light emitted from the organic layers OR1 and OR2. Note that the cap layers CP1 and CP2 may be omitted. The cap layer CP1 is disposed on the upper electrode UE1. The cap layer CP2 is disposed on the upper electrode UE2.

[0046] The first sealing layer SE11 is disposed on the cap layer CP1, contacts the partition wall 6, and continuously covers each member of the sub-pixel SP1. The first sealing layer SE12 is disposed on the cap layer CP2, contacts the partition wall 6, and continuously covers each member of the sub-pixel SP2.

[0047] In the example of FIG. 4, a part of each of the organic layer OR1, the upper electrode UE1, and the cap layer CP1 is located on the partition wall 6 around the sub-pixel SP1. These portions are separated from the portions located in the opening A51 (the portions constituting the display element DE1) of the organic layer OR1, the upper electrode UE1, and the cap layer CP1.

[0048] Similarly, a part of each of the organic layer OR2, the upper electrode UE2, and the cap layer CP2 is located on the partition wall 6 around the sub-pixel SP2, and these portions are separated from the portions located in the opening A52 (the portions constituting the display element DE2) of the organic layer OR2, the upper electrode UE2, and the cap layer CP2.

[0049] In the following description, the multilayer body including the organic layer OR1, the upper electrode UE1, and the cap layer CP1 is referred to as a laminated film FL1, and the multilayer body including the organic layer OR2, the upper electrode UE2, and the cap layer CP2 is referred to as a laminated film FL2.

[0050] The ends of the first sealing layers SE11, SE12 and the ends of the laminated films FL1, FL2 are each located on the partition wall 6. In the example of FIG. 4, the laminated film FL1 and the first sealing layer SE11 on the partition wall 6 between the sub-pixels SP1, SP2 are separated from the laminated film FL2 and the first sealing layer SE12 on the partition wall 6.

[0051] The partition wall 6 and the first sealing layers SE11, SE12 are covered with an organic insulating layer RS1 (first organic insulating layer). The organic insulating layer RS1 is covered with a second sealing layer SE2. The second sealing layer SE2 is covered with an organic insulating layer RS2 (second organic insulating layer). In the illustrated example, the organic insulating layer RS2 is thicker than the organic insulating layer RS1.

[0052] The lens ML1 is disposed on the organic insulating layer RS2. The lens ML1 is formed in a convex shape protruding on the side opposite to the substrate 10 in the third direction Z. In the illustrated example, the cross-section of the lens ML1 is semi-elliptical. The lens ML1 overlaps the lower electrodes LE1, LE2, the stacked films FL1, FL2, and the first sealing layers SE11, SE12 in the third direction Z. In one example, the lens ML1 is covered by an air layer. In another example, the lens ML1 is covered by a material having a refractive index smaller than the refractive index of the lens ML1.

[0053] The center line MC1 is located at the thickest part of the lens ML1 and is located directly above the partition wall 6.

[0054] It is desirable that the position of each focal point of the lens ML1 coincides with the position of the light-emitting layer included in the organic layer OR1. The position of the focal point of the lens ML1 can be made to coincide with the position of the light-emitting layer, for example, by changing the thicknesses of the organic insulating layers RS1 and RS2.

[0055] A cover member such as a polarizing plate or a cover glass may be further disposed above the lens ML1.

[0056] The display device DSP further includes a light-shielding layer BM disposed on the organic insulating layer RS2. The light-shielding layer BM covers the space between a plurality of adjacent lenses ML1 in the first direction X. In the illustrated example, the light-shielding layer BM overlaps the lens edges ME1, ME2. Both ends of the light-shielding layer BM are covered by a plurality of lenses ML1.

[0057] The inorganic insulating layer 5, the first sealing layers SE11, SE12, and the second sealing layer SE2 are formed of an inorganic insulating material such as silicon nitride (SiNx), silicon oxide (SiOx), silicon oxynitride (SiON), or aluminum oxide (Al2O3). The organic insulating layers RS1, RS2 are formed of a resin material (organic insulating material) such as an epoxy resin or an acrylic resin.

[0058] The lower part 61 of the partition wall 6 is formed of a conductive material and is electrically connected to the upper electrodes UE1 and UE2. The first conductive layer 63 is formed of a titanium-based material such as titanium or a titanium compound. The second conductive layer 64 is formed of a material different from the first conductive layer 63 and the upper part 62, and is formed of an aluminum-based material such as aluminum or an aluminum compound, for example.

[0059] The upper part 62 of the partition wall 6 is formed of, for example, a conductive material, but may also be formed of an insulating material. The thin film 65 is formed of a titanium-based material such as titanium or a titanium compound, for example. The thin film 66 is formed of an oxide conductive material such as indium tin oxide (ITO), for example.

[0060] The lower electrodes LE1 and LE2 are a multilayer body including a transparent layer formed of an oxide conductive material such as indium tin oxide (ITO) and a reflective layer formed of a metal material such as silver. In one example, the lower electrodes LE1 and LE2 are a multilayer body including a reflective layer between a pair of transparent layers. The lower transparent layer functions as an adhesion layer that adheres to the insulating layer 12.

[0061] In one example, the organic layer OR1 includes a light-emitting layer formed of a material that emits green light, and the organic layer OR2 includes a light-emitting layer formed of a material that emits blue light. In another example, the organic layer OR1 may include a light-emitting layer formed of a material that emits blue light, and the organic layer OR2 may include a light-emitting layer formed of a material that emits green light. Further, each of the organic layers OR1 and OR2 includes a plurality of functional layers such as a hole injection layer, a hole transport layer, an electron blocking layer, a hole blocking layer, an electron transport layer, and an electron injection layer.

[0062] The upper electrodes UE1 and UE2 are formed of a metal material such as an alloy of magnesium and silver (MgAg), for example. The cap layers CP1 and CP2 are a multilayer body of a plurality of thin films. The plurality of thin films are all transparent and have different refractive indexes from each other.

[0063] The lens ML1 is formed of a transparent resin material such as an epoxy resin, an acrylic resin, or a polyimide resin.

[0064] FIG. 5 is a schematic plan view showing an example of the layout of the openings A61 to A66. The display device DSP further includes display elements DE4, DE5, and DE6. The display element DE4 (the fourth light-emitting element) is adjacent to the display elements DE5 and DE6 in the first direction X and adjacent to the display element DE3 in the second direction Y. The display element DE5 (the fifth light-emitting element) is adjacent to the display element DE4 in the first direction X and adjacent to the display elements DE1 and DE6 in the second direction Y. The display element DE6 (the sixth light-emitting element) is adjacent to the display element DE4 in the first direction X and adjacent to the display element DE5 in the second direction Y.

[0065] The display element DE4 is configured in the same manner as the display element DE1. That is, the display element DE4 has a light-emitting layer formed of a material that emits the same color as the display element DE1. The display element DE5 is configured in the same manner as the display element DE2. That is, the display element DE5 has a light-emitting layer formed of a material that emits the same color as the display element DE2. The display element DE6 is configured in the same manner as the display element DE3. That is, the display element DE6 has a light-emitting layer formed of a material that emits the same color as the display element DE3.

[0066] The colors of the light emitted by the display elements DE1 and DE4 (the first color), the colors of the light emitted by the display elements DE2 and DE5 (the second color), and the colors of the light emitted by the display elements DE3 and DE6 (the third color) are different from each other.

[0067] The partition wall 6 further has openings A64, A65, and A66 surrounded by the edge AE (see FIG. 4) of the partition wall 6. The opening A64 (the fourth opening) overlaps with the display element DE4. The opening A65 (the fifth opening) overlaps with the display element DE5. The opening A66 (the sixth opening) overlaps with the display element DE6. In the display area DA, a column in which the openings A61, A65, and A66 are arranged in the second direction Y and a column in which the openings A62, A63, and A64 are arranged in the second direction Y are formed. These columns are arranged alternately in the first direction X. The lens ML1 overlaps with the openings A64, A65, and A66 and the display elements DE4, DE5, and DE6.

[0068] Next, the effects of the present embodiment will be described with reference to FIG. 6. FIG. 6 is a diagram for explaining the effects of the present embodiment. In the following, the direction from the display element DE1 toward the center line MC1 along the first direction X is defined as the direction X1, and the direction from the display element DE2 toward the center line MC1 along the first direction X is defined as the direction X2.

[0069] A light ray L1 emitted from the display element DE1 located on the X2 side with respect to the center line MC1 along the third direction Z is refracted at the interface between the lens ML1 and the air and travels along a direction inclined from the third direction Z toward the X1 side. On the other hand, a light ray L2 emitted from the display element DE2 located on the X1 side with respect to the center line MC1 along the third direction Z is refracted at the interface between the lens ML1 and the air and travels along a direction inclined from the third direction Z toward the X2 side.

[0070] That is, a user on the traveling direction side of the light ray L1 can visually recognize the light emitted from the display element DE1, but can hardly visually recognize the light emitted from the display element DE2. On the other hand, a user on the traveling direction side of the light ray L2 can visually recognize the light emitted from the display element DE2, but can hardly visually recognize the light emitted from the display element DE1.

[0071] In the example shown in FIG. 5, a user on the X1 side of the display device DSP can visually recognize the light emitted from the display elements DE1, DE5, and DE6, but can hardly visually recognize the light emitted from the display elements DE2, DE3, and DE4. On the other hand, a user on the X2 side of the display device DSP can visually recognize the light emitted from the display elements DE2, DE3, and DE4, but can hardly visually recognize the light emitted from the display elements DE1, DE5, and DE6. Therefore, the viewing angle of the display device DSP can be restricted.

[0072] Next, the case where the display device DSP of the present embodiment is mounted on a vehicle such as an automobile will be described. FIGS. 7 to 9 are diagrams showing the display device DSP of the present embodiment mounted on an in-vehicle device. As an example, the case where the display device DSP is mounted between the driver's seat and the passenger seat will be described.

[0073] As shown in FIG. 7, for example, during driving, it is required that different images can be visually recognized on the driver's seat side and the passenger seat side. When the arrangement of the display elements DE1 to DE6 in the display area DA is the same as the arrangement shown in the example of FIG. 5, the passenger PAS1 sitting on the X1 side of the display device DSP can visually recognize the light emitted from the display elements DE1, DE5, and DE6. On the other hand, the driver DRV sitting on the X2 side of the display device DSP can visually recognize the light emitted from the display elements DE2, DE3, and DE4. That is, an image signal for displaying an image for the passenger PAS1 on the passenger seat is supplied to the display elements DE1, DE5, and DE6, and an image signal for displaying an image for the driver DRV is supplied to the display elements DE2, DE3, and DE4. Thereby, the passenger PAS1 on the passenger seat and the driver DRV can visually recognize the screens 101 and 102 on which different images are displayed, respectively.

[0074] As shown in FIG. 8, for example, when it is desired to be able to view the same image on the driver's seat side and the passenger seat side with the engine off, the same image signal as that of the display element DE4 is supplied to the display element DE1, the same image signal as that of the display element DE2 is supplied to the display element DE5, and the same image signal as that of the display element DE3 is supplied to the display element DE6. Then, the passenger PAS1 in the passenger seat and the driver DRV can view the screens 101 and 102 on which the same image is displayed.

[0075] As shown in FIG. 9, for example, when it is desired to make it difficult to view an image from the driver's seat side while allowing the image to be viewed from the passenger seat side during driving, image signals are supplied to the display elements DE1, DE5, and DE6, and no image signals are supplied to the display elements DE2, DE3, and DE4. As a result, the display elements DE1, DE5, and DE6 light up according to the image signal, while the display elements DE2, DE3, and DE4 do not light up. Then, the passenger PAS1 in the passenger seat can view the screen 101 on which the image is displayed, and the driver DRV can view the dark screen 102 on which almost no image is displayed.

[0076] FIG. 10 is a schematic plan view showing another example of the layout of the openings A61 to A66 shown in FIG. 5. The length of each of the openings A61 to A66 along the second direction Y in FIG. 10 is about half of the length of each of the openings A61 to A66 along the second direction Y in FIG. 5. As a result, the number of pixels of the display device DSP shown in FIG. 10 is about twice the number of pixels of the display device DSP shown in FIG. 5. Therefore, the resolution of the screen 101 visible to the passenger PAS1 in the passenger seat and the resolution of the screen 102 visible to the driver DRV can be increased. Here, the resolution is defined as the number of pixels contributing to the display per unit area.

[0077] FIG. 11 is a cross-sectional view showing another configuration example of the display device DSP along the line A-A' in FIG. 3. The display device DSP shown in FIG. 11 is different from the display device DSP shown in FIG. 4 in that the cross-sectional shape of the lens ML1 is different.

[0078] The lens ML1 has a flat surface P1 at the top. In the example of FIG. 11, the surface P1 is a surface parallel to the first direction X and the second direction Y. Note that the surface P1 may be inclined with respect to the plane formed by the first direction X and the second direction Y.

[0079] Also in the display device DSP shown in FIG. 11, the same effects as those of the display device DSP shown in FIG. 4 can be obtained.

[0080] FIG. 12 is a cross-sectional view showing still another configuration example of the display device DSP along the line A-A' in FIG. 3. The display device DSP further includes a color filter layer CF. The color filter layer CF has color filters CF1, CF2 and a light shielding layer BM1. The color filter layer CF is disposed between the second sealing layer SE2 and the organic insulating layer RS2 in the third direction Z.

[0081] The color filter CF1 is disposed directly above the display element DE1. The color filter CF1 has a color similar to the emission color of the display element DE1 and is formed of a resin material colored green as an example. The color filter CF2 is disposed directly above the display element DE2. The color filter CF2 has a color similar to the emission color of the display element DE2 and is formed of a resin material colored blue as an example.

[0082] The light shielding layer BM1 overlaps the peripheral edges of the color filters CF1 and CF2. In the illustrated example, the light shielding layer BM1 overlaps the lens edges ME1 and ME2 in the third direction Z.

[0083] Although not shown, the color filter layer CF includes a color filter disposed directly above the display element DE3 shown in FIG. 2. The color filter has a color similar to the emission color of the display element DE3 and is formed of a resin material colored red as an example.

[0084] In the display device DSP shown in FIG. 12, for example, the green light emitted from the display element DE1 passes through the color filter CF1. On the other hand, the blue light emitted from the display element DE2 is absorbed by the color filter CF1. Thereby, color mixing of light can be suppressed, and a decrease in display quality can be suppressed.

[0085] Also in the display device DSP shown in FIG. 12, the same effects as those of the display device DSP shown in FIG. 4 can be obtained.

[0086] FIG. 13 is a cross-sectional view showing still another configuration example of the display device DSP along the line A-A' in FIG. 3. In the illustrated example, the color filter layer CF is disposed between the organic insulating layer RS2 and the plurality of lenses ML1 in the third direction Z. Note that the position of the color filter layer CF is not limited to the examples shown in FIGS. 12 and 13.

[0087] Also in the display device DSP shown in FIG. 13, the same effects as those of the display device DSP shown in FIG. 4 can be obtained.

[0088] FIG. 14 is a schematic plan view showing another example of the layout of the openings A61 to A66. The display element DE4 is adjacent to the display elements DE1, DE5, and DE6 in the first direction X. The display element DE5 is adjacent to the display element DE4 in the first direction X and adjacent to the display element DE6 in the second direction Y. The display element DE6 is adjacent to the display element DE4 in the first direction X and adjacent to the display element DE5 in the second direction Y. As described above, the openings A61 to A66 overlap the display elements DE1 to DE6, respectively.

[0089] In the display area DA, a column in which a plurality of openings A61 are arranged in the second direction Y, a column in which the openings A62 and A63 are alternately arranged in the second direction Y, a column in which the openings A65 and A66 are alternately arranged in the second direction Y, and a column in which a plurality of openings A64 are arranged in the second direction Y are formed. These columns are arranged in the first direction X.

[0090] The display device DSP includes a lens ML1 that overlaps the apertures A61, A62, A63 and the display elements DE1, DE2, DE3, and a lens ML2 that overlaps the apertures A64, A65, A66 and the display elements DE4, DE5, DE6. The lens ML2 is configured in the same manner as the lens ML1. The lenses ML1 and ML2 are alternately arranged in the first direction X.

[0091] In the example shown in FIG. 14, a user on the X1 side with respect to the display device DSP can visually recognize the light emitted from the display elements DE1, DE5, and DE6. On the other hand, a user on the X2 side with respect to the display device DSP can visually recognize the light emitted from the display elements DE2, DE3, and DE4. That is, by supplying different image signals to the display elements DE1, DE5, DE6 and the display elements DE2, DE3, DE4, the user on the X1 side and the user on the X2 side can visually recognize different images respectively.

[0092] FIG. 15 is a schematic plan view showing another example of the layout of the apertures A61 to A66 shown in FIG. 14. The length of each of the apertures A61 to A66 along the first direction X in FIG. 15 is about half of the length of each of the apertures A61 to A66 along the first direction X in FIG. 14. As a result, the number of pixels of the display device DSP shown in FIG. 15 is about twice the number of pixels of the display device DSP shown in FIG. 14. Therefore, the resolution of the screen 101 visible to the passenger PAS1 in the passenger seat and the resolution of the screen 102 visible to the driver DRV can be increased.

[0093] FIG. 16 is a schematic plan view showing yet another example of the layout of the apertures A61 to A66. The display element DE4 is adjacent to the display elements DE5 and DE6 in the first direction X and adjacent to the display element DE1 in the second direction Y. The display element DE5 is adjacent to the display element DE4 in the first direction X and adjacent to the display elements DE3 and DE6 in the second direction Y. The display element DE6 is adjacent to the display element DE4 in the first direction X and adjacent to the display element DE5 in the second direction Y. As described above, the apertures A61 to A66 overlap the display elements DE1 to DE6 respectively.

[0094] In the display area DA, a row in which the openings A61 and A64 are alternately arranged in the second direction Y and a row in which the openings A62, A63, A65, and A66 are arranged in the second direction Y are formed. These rows are alternately arranged in the first direction X.

[0095] The display device DSP includes a lens ML1 that overlaps the openings A61, A62, A63 and the display elements DE1, DE2, DE3, and a lens ML2 that overlaps the openings A64, A65, A66 and the display elements DE4, DE5, DE6. The lens ML2 is arranged between the lenses ML1 adjacent to each other in the first direction X in the first direction X. In the display area DA, a row in which a plurality of lenses ML1 are arranged in the first direction X and a row in which a plurality of lenses ML2 are arranged in the first direction X are formed. These rows are alternately arranged in the second direction Y.

[0096] Among the lenses ML2 adjacent to each other in the first direction X, the lens ML2 located on the X2 side with respect to the lens ML1 corresponds to the second lens, and the lens ML2 located on the X1 side with respect to the lens ML1 corresponds to the third lens.

[0097] In the example shown in FIG. 16, a user on the X1 side with respect to the display device DSP can visually recognize the light emitted from the display elements DE1, DE5, and DE6. On the other hand, a user on the X2 side with respect to the display device DSP can visually recognize the light emitted from the display elements DE2, DE3, and DE4. That is, by supplying different image signals to the display elements DE1, DE5, DE6 and the display elements DE2, DE3, DE4, the user on the X1 side and the user on the X2 side can visually recognize different images, respectively.

[0098] FIG. 17 is a schematic plan view showing another example of the layout of the openings A61 to A66 shown in FIG. 16. The length of each of the openings A61 to A66 in the second direction Y in FIG. 17 is about half of the length of each of the openings A61 to A66 in the second direction Y in FIG. 16. As a result, the number of pixels of the display device DSP shown in FIG. 17 is about twice the number of pixels of the display device DSP shown in FIG. 16. Therefore, it is possible to increase the resolution of the screen 101 visible to the passenger PAS1 in the passenger seat and the resolution of the screen 102 visible to the driver DRV.

[0099] FIG. 18A is a plan view showing another example of the layout of the openings A61, A62, A63 and the lens ML1. In the example shown in FIG. 18A, the lens ML1 has a shape in which the corners of the rectangular shape in plan view are formed in a round shape. Note that the lens ML1 may be formed in an elliptical shape or a circular shape in plan view. The portions of the openings A61, A62, A63 that do not overlap with the lens ML1 overlap with a light shielding layer (light shielding layer BM shown in FIG. 4) not shown.

[0100] FIG. 18B is a cross-sectional view showing a configuration example of the display device DSP along the lines B-B' and C-C' in FIG. 18A. The upper part of FIG. 18B is a cross-sectional view showing a configuration example of the display device DSP along the line B-B' in FIG. 18A. The cross-sectional shape of the lens ML1 along the first direction X is convex protruding to the side opposite to the substrate 10. Therefore, as described above, the viewing angle in the first direction X is limited.

[0101] The lower part of FIG. 18B is a cross-sectional view showing a configuration example of the display device DSP along the line C-C' in FIG. 18A. The cross-sectional shape of the lens ML1 along the second direction Y is convex protruding to the side opposite to the substrate 10. Therefore, similar to the first direction X, the viewing angle in the second direction Y is limited. By limiting the viewing angle in the second direction Y, for example, when the display device DSP is mounted on an automobile, it is possible to suppress the reflection of the display image on the front glass of the automobile.

[0102] In addition, in FIG. 18B, the illustration between the organic insulating layer RS2 and the substrate 10 is omitted. Each of the above-described configurations can be applied between the organic insulating layer RS2 and the substrate 10.

[0103] FIG. 19 is a schematic plan view showing still another example of the layout of the openings A61 to A66. The layout of the display elements DE1 to DE6, the openings A61 to A66, and the lenses ML1, ML2 shown in FIG. 19 is the same as the layout of the display elements DE1 to DE6, the openings A61 to A66, and the lenses ML1, ML2 shown in FIG. 16. In the case of such a layout, the viewing angles in the first direction X and the second direction Y can be restricted.

[0104] FIG. 20 is a schematic plan view showing another example of the layout of the openings A61 to A66 shown in FIG. 19. The length of each of the openings A61 to A66 along the second direction Y in FIG. 20 is about half of the length of each of the openings A61 to A66 along the second direction Y in FIG. 19. As a result, the number of pixels of the display device DSP shown in FIG. 20 becomes about twice the number of pixels of the display device DSP shown in FIG. 19. For this reason, the resolution of the screen 101 visible to the passenger PAS1 in the passenger seat and the resolution of the screen 102 visible to the driver DRV can be increased.

[0105] FIG. 21 is a schematic plan view showing another example of the layout of the sub-pixels SP1, SP2, and SP3. In the example of FIG. 21, the sub-pixel SP3 is arranged between the sub-pixel SP1 and the sub-pixel SP2 in the first direction X.

[0106] In the example of FIG. 21, the areas of the openings A51, A52, and A53 are equal. Note that the areas of the openings A51, A52, and A53 may be different.

[0107] Similarly, the areas of the openings A61, A62, and A63 are equal. Note that the areas of the openings A61, A62, and A63 may be different.

[0108] FIG. 22 is a plan view showing another example of the layout of the openings A61, A62, A63 and the lens ML1. In FIG. 22, illustration of the lower electrode, the organic layer, the upper electrode, etc. constituting the display element of each sub-pixel is omitted.

[0109] The lens ML1 overlaps with the openings A61, A62, A63 and the display elements DE1, DE2, DE3. In the illustrated example, the center line MC1 of the lens ML1 is located between the opening edge AE5 and the opening edge AE6 in the first direction X. That is, the center line MC1 overlaps with the opening A63 and the display element DE3 in a plan view. Further, the center line MC1 intersects with the portion of the partition wall 6 that extends in the first direction X.

[0110] FIG. 23 is a schematic plan view showing an example of the layout of the openings A61 to A69. The display device DSP further includes display elements DE7, DE8, DE9. The display element DE7 is configured in the same manner as the display elements DE1, DE4. That is, the display element DE7 has a light-emitting layer formed of a material that emits the same color as the display elements DE1, DE4. The display element DE8 is configured in the same manner as the display elements DE2, DE5. That is, the display element DE8 has a light-emitting layer formed of a material that emits the same color as the display elements DE2, DE5. The display element DE9 is configured in the same manner as the display elements DE3, DE6. That is, the display element DE9 has a light-emitting layer formed of a material that emits the same color as the display elements DE3, DE6.

[0111] The colors of the light emitted by the display elements DE1, DE4, DE7, the colors of the light emitted by the display elements DE2, DE5, DE8, and the colors of the light emitted by the display elements DE3, DE6, DE9 are different from each other.

[0112] The partition wall 6 further has openings A67, A68, and A69 surrounded by the edge AE (see FIG. 4) of the partition wall 6. The opening A67 overlaps with the display element DE7. The opening A68 overlaps with the display element DE8. The opening A69 overlaps with the display element DE9. In the display area DA, there are formed a column in which the openings A61, A63, and A62 are repeatedly arranged in this order in the first direction X, a column in which the openings A65, A64, and A66 are repeatedly arranged in this order in the first direction X, and a column in which the openings A69, A68, and A67 are repeatedly arranged in this order in the first direction X. These columns are arranged in the second direction Y.

[0113] According to another expression, in the display area DA, there are formed a column in which the openings A61, A65, and A69 are repeatedly arranged in this order in the second direction Y, a column in which the openings A63, A64, and A68 are repeatedly arranged in this order in the second direction Y, and a column in which the openings A62, A66, and A67 are repeatedly arranged in this order in the second direction Y. These columns are arranged in the first direction X. The lens ML1 overlaps with the openings A61 to A69 and the display elements DE1 to DE9.

[0114] Next, with reference to FIG. 24, the effects of the present embodiment will be described. FIG. 24 is a diagram for explaining the effects of the present embodiment.

[0115] As described above, the light ray L1 emitted from the display element DE1 located on the X2 side with respect to the center line MC1 along the third direction Z is refracted at the interface between the lens ML1 and the air and travels along a direction inclined from the third direction Z toward the X1 side. Also, the light ray L2 emitted from the display element DE2 located on the X1 side with respect to the center line MC1 along the third direction Z is refracted at the interface between the lens ML1 and the air and travels along a direction inclined from the third direction Z toward the X2 side.

[0116] The light ray L3 emitted from the display element DE3 overlapping with the center line MC1 along the third direction Z is hardly refracted at the interface between the lens ML1 and the air and travels along the third direction Z.

[0117] That is, a user on the traveling direction side of the light beam L1 can visually recognize the light emitted from the display element DE1, but can hardly visually recognize the light emitted from the display elements DE2 and DE3. A user on the traveling direction side of the light beam L2 can visually recognize the light emitted from the display element DE2, but can hardly visually recognize the light emitted from the display elements DE1 and DE3. A user on the traveling direction side of the light beam L3 can visually recognize the light emitted from the display element DE3, but can hardly visually recognize the light emitted from the display elements DE1 and DE2.

[0118] In the example shown in FIG. 23, a user on the X1 direction side with respect to the display device DSP can visually recognize the light emitted from the display elements DE1, DE5, and DE9, but can hardly visually recognize the light emitted from the display elements DE2, DE6, DE7 and the display elements DE3, DE4, DE8. A user on the X2 direction side with respect to the display device DSP can visually recognize the light emitted from the display elements DE2, DE6, and DE7, but can hardly visually recognize the light emitted from the display elements DE1, DE5, DE9 and the display elements DE3, DE4, DE8. A user on the third direction Z side with respect to the display device DSP can visually recognize the light emitted from the display elements DE3, DE4, and DE8, but can hardly visually recognize the light emitted from the display elements DE1, DE5, DE9 and the display elements DE2, DE6, DE7.

[0119] Next, a case where the display device DSP shown in FIG. 23 is mounted on a vehicle such as an automobile will be described. FIGS. 25 to 27 are diagrams showing the display device DSP of the present embodiment mounted on an in-vehicle device. As an example, a case where the display device DSP is mounted between the driver's seat and the passenger seat will be described.

[0120] When the arrangement of the display elements DE1 to DE9 in the display area DA is as shown in the example of FIG. 23, as shown in FIG. 25, the passenger PAS1 sitting on the passenger seat side in the X1 direction with respect to the display device DSP can visually recognize the light emitted from the display elements DE1, DE5, and DE9. The driver DRV sitting on the X2 direction side with respect to the display device DSP can visually recognize the light emitted from the display elements DE2, DE6, and DE7. The passenger PAS2 sitting on the rear seat side in the third direction Z with respect to the display device DSP can visually recognize the light emitted from the display elements DE3, DE4, and DE8. Image signals for displaying images for the passenger PAS1 on the passenger seat are supplied to the display elements DE1, DE5, and DE9, image signals for displaying images for the driver DRV are supplied to the display elements DE2, DE6, and DE7, and image signals for displaying images for the passenger PAS2 on the rear seat are supplied to the display elements DE3, DE4, and DE8.

[0121] For example, when the vehicle is running, the same image signal as that of the display element DE4 is supplied to the display element DE1, the same image signal as that of the display element DE8 is supplied to the display element DE5, and the same image signal as that of the display element DE3 is supplied to the display element DE9. Then, as shown in FIG. 25, the passenger PAS1 on the passenger seat and the passenger PAS2 on the rear seat can visually recognize the screens 101 and 103 on which the same image is displayed. Also, the driver DRV can visually recognize the screen 102 on which an image different from the images visually recognized by the passenger PAS1 on the passenger seat and the passenger PAS2 on the rear seat is displayed.

[0122] For example, when the engine of the vehicle is off, the same image signal is supplied to the display elements DE1, DE4, and DE7, the same image signal is supplied to the display elements DE2, DE5, and DE8, and the same image signal is supplied to the display elements DE3, DE6, and DE9. Then, as shown in FIG. 26, the passenger PAS1 on the passenger seat, the driver DRV, and the passenger PAS2 on the rear seat can visually recognize the screens 101, 102, and 103 on which the same image is displayed.

[0123] For example, when it is desired to make it difficult to visually recognize an image from the driver's seat side while the vehicle is in motion, image signals are supplied to display elements DE1, DE5, DE9 and display elements DE3, DE4, DE8, and no image signals are supplied to display elements DE2, DE6, DE7. As a result, while display elements DE1, DE5, DE9 and display elements DE3, DE4, DE8 light up according to the image signals, display elements DE2, DE6, DE7 do not light up. Then, as shown in FIG. 27, the passenger PAS1 in the passenger seat and the passenger PAS2 in the rear seat can respectively visually recognize the screens 101 and 103 on which images are displayed, and the driver DRV can visually recognize the dark screen 102 on which almost no image is displayed.

[0124] In addition, when it is desired that the passenger PAS1 in the passenger seat, the driver DRV, and the passenger PAS2 in the rear seat can respectively visually recognize different images, different image signals are supplied to display elements DE1, DE5, DE9, display elements DE2, DE6, DE7, and display elements DE3, DE4, DE8. Then, the passenger PAS1 in the passenger seat, the driver DRV, and the passenger PAS2 in the rear seat can respectively visually recognize the screens 101, 102, and 103 on which different images are displayed.

[0125] FIG. 28 is a schematic plan view showing another example of the layout of the openings A61 to A69 shown in FIG. 23. The length of each of the openings A61 to A69 in the second direction Y in FIG. 28 is about 1 / 3 of the length of each of the openings A61 to A69 in the second direction Y in FIG. 23. As a result, the number of pixels of the display device DSP shown in FIG. 28 becomes about three times the number of pixels of the display device DSP shown in FIG. 23. Therefore, it is possible to increase the resolution of the screen 101 visible to the passenger PAS1 in the passenger seat, the resolution of the screen 102 visible to the driver DRV, and the resolution of the screen 103 visible to the passenger PAS2 in the rear seat.

[0126] FIG. 29 is a schematic plan view showing another example of the layout of openings A61 to A69. In the display area DA, a row in which openings A61, A63, A62, A65, A64, A66, A69, A68, A67 are repeatedly arranged in this order in the first direction X is formed. This row is repeatedly arranged in the second direction Y.

[0127] The display device DSP includes lenses ML1, ML2, and ML3. The lenses ML1, ML2, and ML3 extend in the second direction Y, respectively. The lens ML1 overlaps the openings A61, A62, A63 and the display elements DE1, DE2, DE3. The lens ML2 overlaps the openings A64, A65, A66 and the display elements DE4, DE5, DE6. The lens ML3 overlaps the openings A67, A68, A69 and the display elements DE7, DE8, DE9. The lenses ML2 and ML3 are configured in the same manner as the lens ML1. The lenses ML1, ML2, and ML3 are arranged in this order in the first direction X.

[0128] In the example shown in FIG. 29, a user on the X1 side with respect to the display device DSP can visually recognize the light emitted from the display elements DE1, DE5, and DE9. A user on the X2 side with respect to the display device DSP can visually recognize the light emitted from the display elements DE2, DE6, and DE7. A user on the third direction Z side with respect to the display device DSP can visually recognize the light emitted from the display elements DE3, DE4, and DE8.

[0129] FIG. 30 is a schematic plan view showing another example of the layout of the openings A61 to A69 shown in FIG. 29. The length of each of the openings A61 to A69 along the first direction X in FIG. 30 is about 1 / 3 of the length of each of the openings A61 to A69 along the first direction X in FIG. 29. As a result, the number of pixels of the display device DSP shown in FIG. 30 is about three times the number of pixels of the display device DSP shown in FIG. 29. Therefore, the resolution of the screen 101 visible to the passenger PAS1 in the passenger seat, the resolution of the screen 102 visible to the driver DRV, and the resolution of the screen 103 visible to the passenger PAS2 in the rear seat can be increased.

[0130] Based on the display device described as an embodiment of the present invention above, all display devices that those skilled in the art can appropriately modify and implement through design changes also belong to the scope of the present invention as long as they encompass the gist of the present invention.

[0131] Within the scope of the idea of the present invention, those skilled in the art can conceive of various modifications, and these modifications are also understood to belong to the scope of the present invention. For example, with respect to the above-described embodiment, those in which those skilled in the art have appropriately added, deleted, or modified the components, or added, omitted, or changed the conditions of the steps also fall within the scope of the present invention as long as they have the gist of the present invention.

[0132] Also, with respect to other operational effects brought about by the aspects described in the above-described embodiment, those that are obvious from the description of this specification or that those skilled in the art can appropriately conceive of are naturally understood to be brought about by the present invention.

Explanation of Reference Numerals

[0133] DSP... Display device, PNL... Display panel, 10... Substrate, 5... Inorganic insulating layer, 6... Partition wall, 61... Lower part, 62... Upper part, BM, BM1... Light-shielding layer, PX... Pixel, DE, DE1~DE9... Display element, 101, 102, 103... Screen, A61~A69... Opening, ML1, ML2, ML3... Lens, ME1, ME2... Lens edge, MC1... Center line, DRV... Driver, PAS1... Passenger in the front passenger seat, PAS2... Passenger in the rear seat.

Claims

1. A substrate, a first light-emitting element and a second light-emitting element which are arranged above the substrate and adjacent to each other in a first direction, a lower part surrounding each of the first light-emitting element and the second light-emitting element, an upper part which is arranged above the lower part, surrounded by an edge protruding from a side surface of the lower part, and has a first opening overlapping with the first light-emitting element and a second opening overlapping with the second light-emitting element, a plurality of lenses formed in a convex shape protruding to the side opposite to the substrate, wherein the plurality of lenses includes a first lens overlapping with the first opening and the second opening, a display device.

2. Furthermore, a third light-emitting element which is arranged above the substrate, adjacent to the first light-emitting element in the first direction, and adjacent to the second light-emitting element in a second direction intersecting with the first direction is provided, the lower part surrounds the third light-emitting element, the upper part further has a third opening which is surrounded by the edge and overlaps with the third light-emitting element, the first lens overlaps with the third opening, the display device according to Claim 1.

3. Furthermore, a third light-emitting element which is arranged above the substrate and arranged between the first light-emitting element and the second light-emitting element is provided, the lower part surrounds the third light-emitting element, the upper part further has a third opening which is surrounded by the edge and overlaps with the third light-emitting element, the first lens overlaps with the third opening, the display device according to Claim 1.

4. The first light-emitting element, the second light-emitting element, and the third light-emitting element have a light-emitting layer formed of a material that emits light of different colors from each other, the display device according to Claim 2 or 3.

5. Furthermore, a fourth light-emitting element which is arranged above the substrate and adjacent to the third light-emitting element in the second direction, a fifth light-emitting element which is adjacent to the fourth light-emitting element in the first direction and adjacent to the first light-emitting element in the second direction, and a sixth light-emitting element which is adjacent to the fourth light-emitting element in the first direction and adjacent to the fifth light-emitting element in the second direction are provided, the lower part surrounds each of the fourth light-emitting element, the fifth light-emitting element, and the sixth light-emitting element, the upper part further has a fourth opening which is surrounded by the edge and overlaps with the fourth light-emitting element, a fifth opening which overlaps with the fifth light-emitting element, and a sixth opening which overlaps with the sixth light-emitting element, the first lens overlaps with the fourth opening, the fifth opening, and the sixth opening, the display device according to Claim 2.

6. Furthermore, it is disposed above the substrate, and includes a fourth light-emitting element adjacent to the first light-emitting element in the first direction, a fifth light-emitting element adjacent to the fourth light-emitting element in the first direction, and a sixth light-emitting element adjacent to the fourth light-emitting element in the first direction and adjacent to the fifth light-emitting element in the second direction. The lower part surrounds each of the fourth light-emitting element, the fifth light-emitting element, and the sixth light-emitting element. The upper part is further surrounded by the edge portion, and has a fourth opening overlapping with the fourth light-emitting element, a fifth opening overlapping with the fifth light-emitting element, and a sixth opening overlapping with the sixth light-emitting element. The plurality of lenses includes a second lens overlapping with the fourth opening, the fifth opening, and the sixth opening. The display device according to claim 2.

7. Furthermore, it is disposed above the substrate, and includes a fourth light-emitting element adjacent to the first light-emitting element in the second direction, a fifth light-emitting element adjacent to the fourth light-emitting element in the first direction and adjacent to the third light-emitting element in the second direction, and a sixth light-emitting element adjacent to the fourth light-emitting element in the first direction and adjacent to the fifth light-emitting element in the second direction. The lower part surrounds each of the fourth light-emitting element, the fifth light-emitting element, and the sixth light-emitting element. The upper part is further surrounded by the edge portion, and has a fourth opening overlapping with the fourth light-emitting element, a fifth opening overlapping with the fifth light-emitting element, and a sixth opening overlapping with the sixth light-emitting element. The plurality of lenses includes a second lens overlapping with the fourth opening, and a third lens overlapping with the fifth opening and the sixth opening. The display device according to claim 2.

8. The cross-sectional shape of each of the plurality of lenses along the first direction and the second direction is convex protruding toward the side opposite to the substrate. The display device according to claim 7.

9. Each of the plurality of lenses has a center line parallel to the second direction. The center line overlaps with the upper part. The display device according to claim 2.

10. Each of the plurality of lenses has a center line parallel to a second direction intersecting the first direction. The center line intersects with the upper part. The display device according to claim 3.

11. The first light-emitting element and the fourth light-emitting element have a light-emitting layer formed of a material that emits light of the same first color as each other. The second light-emitting element and the fifth light-emitting element have a light-emitting layer formed of a material that emits light of the same second color as each other. The third light-emitting element and the sixth light-emitting element each have a light-emitting layer formed of a material that emits light of the same third color as each other. The first color, the second color, and the third color are different from each other. The display device according to any one of claims 5 to 7.

12. The first light-emitting element has a light-emitting layer formed of a material that emits green or blue light. The display device according to claim 1.

13. The areas of the first opening, the second opening, and the third opening are different from each other. The display device according to claim 2.

14. The areas of the first opening, the second opening, and the third opening are equal. The display device according to claim 3.

15. Each of the plurality of lenses has a first lens edge and a second lens edge that are respectively parallel to a second direction intersecting the first direction. Furthermore, a light-shielding layer overlapping the first lens edge and the second lens edge is provided. The display device according to claim 1.

16. The first lens edge and the second lens edge overlap the upper part in plan view. The display device according to claim 15.

17. Each of the plurality of lenses has a flat surface at the top. The display device according to claim 1.

18. Furthermore, a first organic insulating layer disposed on the first light-emitting element, a sealing layer disposed on the first organic insulating layer, and a second organic insulating layer disposed between the sealing layer and the plurality of lenses are provided. The second organic insulating layer is thicker than the first organic insulating layer. The display device according to claim 1.

19. Furthermore, a color filter disposed between the sealing layer and the second organic insulating layer is provided. The display device according to claim 18.

20. The plurality of lenses are formed of a transparent resin material. The display device according to claim 1.

Images