Display device
By configuring the light emitting element on the substrate of the display device and using a combined structure of a lens and an opening, the problem of difficulty in controlling the field of view in the prior art is solved, and different visual images are provided for the driver's seat and the co-pilot's seat in the vehicle-mounted equipment respectively.
Patent Information
- Application Number
- CN202411922672.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-12-27
- Filing Date
- 2024-12-25
- Publication Date
- 2025-06-27
AI Technical Summary
It is difficult for the existing display devices to effectively control the field of view angle, especially in vehicle-mounted equipment, to visually identify different images on the driver's seat side and the co-pilot's seat side.
By placing the first light emitting element and the second light emitting element on the substrate of the display device, and using a combined structure of a lens and an opening, the field angle is limited. Specifically, the lens is shaped to project toward the opposite side of the substrate, and the lens overlaps with the light emitting element and the opening to form a specific optical path to achieve control of the field of view angle.
It realizes effective restrictions on the field of view angle, ensuring that users on the driver's seat and the co-pilot's seat can visually recognize different images, and is suitable for application scenarios such as on-board equipment.
Smart Images

Figure CN120224997A_ABST
Abstract
Description
[0001] Cross - reference to related applications
[0002] This application claims priority based on Japanese Patent Application No. 2023 - 221236 filed on December 27, 2023, and incorporates herein by reference all of the descriptions recited in the Japanese patent application. Technical Field
[0003] Embodiments of the present invention relate to a display device. Background Art
[0004] In recent years, various types of display devices have been proposed. For example, in a display device mounted on a vehicle such as an automobile, field - of - view control that enables different images to be visually recognized on the driver's seat side and the passenger seat side is sought. Summary of the Invention
[0005] Generally speaking, according to an embodiment, a display device includes: a substrate; a first light - emitting element and a second light - emitting element, which are disposed above the substrate and adjacent to each other in a first direction; a lower part that surrounds each of the first light - emitting element and the second light - emitting element; an upper part that is disposed above the lower part; and a plurality of lenses formed in a convex shape protruding toward the side opposite to the substrate. The upper part has: a first opening surrounded by an edge portion protruding from the side surface of the lower part and overlapping with the first light - emitting element; and a second opening overlapping with the second light - emitting element. The plurality of lenses includes a first lens overlapping with the first opening and the second opening.
[0006] According to an embodiment, a display device capable of restricting the field of view can be provided. Brief Description of the Drawings
[0007] Figure 1 is a diagram showing a structural example of a display device according to an embodiment.
[0008] Figure 2 is a schematic plan view showing an example of the layout of sub - pixels.
[0009] Figure 3 is a plan view showing an example of the layout of openings and lenses.
[0010] Figure 4 is showing a cross - sectional view of a structural example of a display device along the A - A' line in Figure 3 is a cross - sectional view of a structural example of a display device along the A - A' line in
[0011] Figure 5 is a schematic plan view showing an example of the layout of openings.
[0012] Figure 6 is a diagram for explaining the effects of the present embodiment.
[0013] Figure 7 It is a diagram showing the display device of the present embodiment mounted on a vehicle-mounted device.
[0014] Figure 8 It is a diagram showing the display device of the present embodiment mounted on a vehicle-mounted device.
[0015] Figure 9 It is a diagram showing the display device of the present embodiment mounted on a vehicle-mounted device.
[0016] Figure 10 It shows Figure 5 A schematic plan view of another example of the layout of the openings shown.
[0017] Figure 11 It shows along Figure 3 A cross-sectional view of another structural example of the display device along the A-A' line in
[0018] Figure 12 It shows along Figure 3 A cross-sectional view of yet another structural example of the display device along the A-A' line in
[0019] Figure 13 It shows along Figure 3 A cross-sectional view of yet another structural example of the display device along the A-A' line in
[0020] Figure 14 A schematic plan view of another example of the layout of the openings.
[0021] Figure 15 It shows Figure 14 A schematic plan view of another example of the layout of the openings shown.
[0022] Figure 16 A schematic plan view of yet another example of the layout of the openings.
[0023] Figure 17 It shows Figure 16 A schematic plan view of another example of the layout of the openings shown.
[0024] Figure 18A A plan view of another example of the layout of the openings and lenses.
[0025] Figure 18B It shows along Figure 18A A cross-sectional view of a structural example of the display device along the B-B' line and the C-C' line in
[0026] Figure 19 A schematic plan view of yet another example of the layout of the openings.
[0027] Figure 20 is a schematic plan view showing other examples of the layout of the openings shown in Figure 19
[0028] Figure 21 is a schematic plan view showing other examples of the layout of sub-pixels.
[0029] Figure 22 is a plan view showing other examples of the layout of the openings and the lenses.
[0030] Figure 23 is a schematic plan view showing an example of the layout of the openings.
[0031] Figure 24 is a diagram for explaining the effects of the present embodiment.
[0032] Figure 25 is a diagram showing the display device of the present embodiment mounted on a vehicle-mounted device.
[0033] Figure 26 is a diagram showing the display device of the present embodiment mounted on a vehicle-mounted device.
[0034] Figure 27 is a diagram showing the display device of the present embodiment mounted on a vehicle-mounted device.
[0035] Figure 28 is a schematic plan view showing other examples of the layout of the openings shown in Figure 23
[0036] Figure 29 is a schematic plan view showing other examples of the layout of the openings.
[0037] Figure 30 is a schematic plan view showing other examples of the layout of the openings shown in Figure 29 Detailed Embodiments
[0038] While referring to the appended Figure 1 drawings, several embodiments will be described.
[0039] The disclosure is merely an example, and those skilled in the art can easily conceive appropriate modifications that maintain the gist of the invention, which are of course included in the scope of the present invention. In addition, for the sake of clarity of the description, there are cases where the widths, thicknesses, shapes, etc. of the respective parts are schematically shown in the drawings as compared with the actual states, but these are merely examples and do not limit the interpretation of the present invention. In addition, in this specification and each drawing, sometimes the same reference numerals are given to structural elements that perform the same or similar functions as the structural elements described above with respect to the previously presented drawings, and repeated detailed descriptions are appropriately omitted.
[0040] In addition, in the drawings, for easy understanding as needed, the X-axis, Y-axis, and Z-axis that are orthogonal 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. The case of observing various elements parallel to the third direction Z is referred to as planar observation.
[0041] The display device of the present embodiment is an organic electroluminescent display device having an organic light-emitting diode (OLED) as a display element, and can be mounted on a television, a personal computer, a vehicle-mounted device, a tablet terminal, a smart phone, a mobile phone terminal, etc.
[0042] Figure 1 It is a diagram showing a structural example of the display device DSP of one embodiment. The display device DSP has a display panel PNL on an insulating substrate 10, and the display panel PNL has a display area DA for displaying an image and a peripheral area SA outside the display area DA. The substrate 10 can be glass or a flexible resin film.
[0043] In Figure 1 it, the shape of the substrate 10 in planar observation is a rectangle having a long side parallel to the first direction X. However, the shape of the substrate 10 in planar observation is not limited to this example. For example, it can also be other shapes such as a rectangle having a long side parallel to the second direction Y, a square, a circle, or an ellipse.
[0044] 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. In addition, the pixel PX may also include a sub-pixel SP of another color such as white together with or instead of one of the sub-pixels SP1, SP2, and SP3.
[0045] 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 formed of, for example, thin film transistors.
[0046] The gate electrode of pixel switch 2 is connected to scan line GL. One of the source electrode and the drain electrode of pixel switch 2 is connected to signal line SL, and the other is connected to the gate electrode of driving transistor 3 and capacitor 4. In driving transistor 3, one of the source electrode and the drain electrode is connected to power supply line PL and capacitor 4, and the other is connected to the anode of display element DE.
[0047] In addition, the structure of pixel circuit 1 is not limited to the illustrated example. For example, pixel circuit 1 may also include more thin film transistors and capacitors.
[0048] Display element DE is an organic light emitting diode (OLED) as a light emitting element, and is sometimes referred to as an organic EL element.
[0049] In peripheral area SA, although not described in detail, terminals for connecting an IC chip and a flexible printed circuit board are provided.
[0050] Figure 2 It is a schematic plan view showing an example of the layout of sub-pixels SP1, SP2, and SP3. In Figure 2 the example, 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.
[0051] In addition, the layout of sub-pixels SP1, SP2, and SP3 is not limited to Figure 2 the example. As another example, although details will be described later, as Figure 21 shown, in each pixel PX, sub-pixels SP1, SP3, and SP2 are arranged in this order in the first direction X.
[0052] In display area DA, inorganic insulating layer 5 and partition wall 6 are disposed. Inorganic insulating layer 5 has openings A51, A52, and A53 in sub-pixels SP1, SP2, and SP3, respectively. Inorganic insulating layer 5 having these openings A51, A52, and A53 is sometimes referred to as a rib.
[0053] Partition wall 6 overlaps inorganic insulating layer 5 in plan view. Partition wall 6 is formed in a lattice shape surrounding openings A51, A52, and A53. Partition wall 6 has openings A61, A62, and A63 surrounded by the upper edge portions of partition wall 6 to be described later. Opening A61 (first opening) surrounds opening A51 in sub-pixel SP1. Opening A62 (second opening) surrounds opening A52 in sub-pixel SP2. Opening A63 (third opening) surrounds opening A53 in sub-pixel SP3. In Figure 4 the Figure 2In the example, the corners of the openings A51, A52, A53 and the openings A61, A62, A63 are each formed in an arc shape, but they may also be formed in a right angle. The openings A51, A52, A53 and the openings A61, A62, A63 may each also be formed in other shapes such as a circle or an ellipse. The partition wall 6 has conductivity and is electrically connected to the terminal at the common potential among the plurality of terminals provided in the peripheral region SA shown in Figure 1 The terminals of the common potential among the plurality of terminals provided in the peripheral region SA shown in
[0054] The sub-pixels SP1, SP2, SP3 each include display elements DE1, DE2, DE3 as display elements DE. The display elements DE1, DE2, DE3 have a light-emitting layer formed of a material that emits light of mutually different colors.
[0055] 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, 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 a plan view. The peripheral portions of the lower electrode LE1, the organic layer OR1, and the upper electrode UE1 overlap the inorganic insulating layer 5 in a plan view. The organic layer OR1 includes a light-emitting layer that emits light in, for example, the green wavelength region.
[0056] 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, 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 a plan view. The display element DE2 is adjacent to the display element DE1 along the first direction X. The peripheral portions of the lower electrode LE2, the organic layer OR2, and the upper electrode UE2 overlap the inorganic insulating layer 5 in a plan view. The organic layer OR2 includes a light-emitting layer that emits light in, for example, the blue wavelength region.
[0057] 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, 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 a plan view. The display element DE3 is adjacent to the display element DE1 along the first direction X and is adjacent to the display element DE2 along the second direction Y. The peripheral portions of the lower electrode LE3, the organic layer OR3, and the upper electrode UE3 overlap the inorganic insulating layer 5 in a plan view. The organic layer OR3 includes a light-emitting layer that emits light in, for example, the red wavelength region.
[0058] In Figure 2In the example, the outer shapes of the lower electrodes LE1, LE2, and LE3 are shown by dashed lines, and the outer shapes of the organic layers OR1, OR2, and OR3 and the upper electrodes UE1, UE2, and UE3 are shown by single-dot dashed lines. In addition, the outer shapes of the lower electrodes, organic layers, and upper electrodes shown in the figure do not necessarily reflect the accurate shapes.
[0059] The lower electrodes LE1, LE2, and LE3 correspond to the anodes of the display elements, for example. The upper electrodes UE1, UE2, and UE3 correspond to the cathodes or common electrodes of the display elements and are in contact with the partition wall 6.
[0060] In Figure 2 the example, 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. In addition, the size relationship of the areas of the openings A51, A52, and A53 is not limited to the example shown in the figure.
[0061] Similarly, in Figure 2 the example, 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. In addition, the size relationship of the areas of the openings A61, A62, and A63 is not limited to the example shown in the figure.
[0062] Figure 3 is a plan view showing an example of the layout of the openings A61, A62, A63, and the lens ML1. In addition, in Figure 3 the illustration of the lower electrodes, organic layers, upper electrodes, etc. of the display elements constituting each sub-pixel is omitted.
[0063] In the opening A61, the edge portion 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.
[0064] In the opening A62, the edge portion 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.
[0065] In the opening A63, the edge portion 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.
[0066] 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 Figure 3 the example of, the lens ML1 covers the openings A61, A62, and A63.
[0067] 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, ME2 overlap with the partition wall 6 in a plan view. Further, the center line MC1 overlaps with 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.
[0068] In this specification, the center line of a lens is a line connecting a plurality of principal points of the lens. A principal point is a point where the principal plane of the lens is orthogonal to the optical axis. The principal plane is a plane that includes the intersection point of the incident light ray before incidence and the outgoing light ray after incidence when a light ray parallel to the optical axis is incident on the lens and is orthogonal to the optical axis.
[0069] Figure 4 is a cross-sectional view showing a structural example of the display device DSP along the Figure 3 A-A' line in. In addition, the following describes the sub-pixels SP1, SP2, but for Figure 2 the sub-pixel SP3 shown in, it is also configured in the same manner as the sub-pixels SP1, SP2.
[0070] The circuit layer 11 is disposed on the substrate 10. The circuit layer 11 includes Figure 1 various circuits such as the pixel circuit 1 shown in, and various wirings such as a scanning line GL, a signal line SL, and a power supply line PL. The circuit layer 11 is covered with an insulating layer 12. The insulating layer 12 is an organic insulating layer that planarizes the unevenness generated by the circuit layer 11.
[0071] The lower electrodes LE1 and LE2 are disposed on the insulating layer 12 and separated 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 with the lower electrode LE1, and the opening A52 overlaps with 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 pixel circuits 1 of the sub-pixels SP1 and SP2 respectively through the contact holes provided in the insulating layer 12. In addition, the contact holes in the insulating layer 12 are omitted in Figure 4 are omitted.
[0072] 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 respectively in a plan view. The upper portion 62 has a peripheral edge AE that surrounds the openings A61 and A62 respectively in a plan view. The peripheral edge AE protrudes from the side surface of the lower portion 61. Such a shape of the partition wall 6 is called an overhanging shape.
[0073] In the illustrated example, the lower portion 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. In addition, in the illustrated example, both ends of the first conductive layer 63 protrude from the side surface of the second conductive layer 64.
[0074] The upper portion 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 surface of the second conductive layer 64. In the illustrated example, the peripheral edge AE of the thin film 65 surrounds the openings A61 and A62. The peripheral edge AE corresponds to, for example, the end portion of the thin film 65.
[0075] 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 portion 61.
[0076] 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 portion 61.
[0077] In Figure 4In the example, the sub-pixel SP1 has an overcoat layer CP1 and a first sealing layer SE11, and the sub-pixel SP2 has an overcoat layer CP2 and a first sealing layer SE12. The overcoat layers CP1 and CP2 each function as an optical adjustment layer for improving the light extraction efficiency of the light emitted from the organic layers OR1 and OR2. In addition, the overcoat layers CP1 and CP2 can be omitted. The overcoat layer CP1 is disposed above the upper electrode UE1. The overcoat layer CP2 is disposed above the upper electrode UE2.
[0078] The first sealing layer SE11 is disposed above the overcoat layer CP1, contacts the partition wall 6, and continuously covers the components of the sub-pixel SP1. The first sealing layer SE12 is disposed above the overcoat layer CP2, contacts the partition wall 6, and continuously covers the components of the sub-pixel SP2.
[0079] In Figure 4 the example, a part of each of the organic layer OR1, the upper electrode UE1, and the overcoat layer CP1 is located above the partition wall 6 around the sub-pixel SP1. These parts are separated from the parts of the organic layer OR1, the upper electrode UE1, and the overcoat layer CP1 that are located in the opening A51 (the part constituting the display element DE1).
[0080] Similarly, a part of each of the organic layer OR2, the upper electrode UE2, and the overcoat layer CP2 is located above the partition wall 6 around the sub-pixel SP2, and these parts are separated from the parts of the organic layer OR2, the upper electrode UE2, and the overcoat layer CP2 that are located in the opening A52 (the part constituting the display element DE2).
[0081] In the following description, the multilayer body including the organic layer OR1, the upper electrode UE1, and the overcoat layer CP1 is referred to as a stacked film FL1, and the multilayer body including the organic layer OR2, the upper electrode UE2, and the overcoat layer CP2 is referred to as a stacked film FL2.
[0082] The ends of the first sealing layers SE11 and SE12 and the ends of the stacked films FL1 and FL2 are respectively located above the partition wall 6. In Figure 4 the example, the stacked film FL1 and the first sealing layer SE11 above the partition wall 6 between the sub-pixels SP1 and SP2 are separated from the stacked film FL2 and the first sealing layer SE12 above the partition wall 6.
[0083] The partition wall 6 and the first sealing layers SE11 and SE12 are covered by an organic insulating layer RS1 (the first organic insulating layer). The organic insulating layer RS1 is covered by a second sealing layer SE2. The second sealing layer SE2 is covered by an organic insulating layer RS2 (the second organic insulating layer). In the illustrated example, the organic insulating layer RS2 is thicker than the organic insulating layer RS1.
[0084] The lens ML1 is disposed above the organic insulating layer RS2. The lens ML1 is formed in a convex shape protruding toward the opposite side of 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 with 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 other examples, the lens ML1 is covered by a material having a refractive index smaller than that of the lens ML1.
[0085] The center line MC1 is located at the thickest part of the lens ML1 and directly above the partition wall 6.
[0086] In addition, the positions of the respective foci of the lenses ML1 are desirably coincident with the positions of the light-emitting layers contained in the organic layer OR1. In addition, the positions of the foci of the lenses ML1 can be made coincident with the positions of the light-emitting layers, for example, by changing the thicknesses of the organic insulating layers RS1, RS2.
[0087] A cover member such as a polarizing plate or a cover glass may also be disposed above the lens ML1.
[0088] The display device DSP further includes a light-shielding layer BM disposed above the organic insulating layer RS2. The light-shielding layer BM covers between a plurality of lenses ML1 adjacent to each other in the first direction X. In the illustrated example, the light-shielding layer BM overlaps with the lens edges ME1, ME2. In addition, both end portions of the light-shielding layer BM are covered by a plurality of lenses ML1.
[0089] 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.
[0090] The lower portion 61 of the partition wall 6 is formed of a conductive material and is electrically connected to the upper electrodes UE1, 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 that of the first conductive layer 63 and the upper portion 62, and is formed of an aluminum-based material such as aluminum or an aluminum compound, for example.
[0091] The upper portion 62 of the partition wall 6 is formed of a conductive material, for example, 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. The thin film 66 is formed of an oxide conductive material such as indium tin oxide (ITO).
[0092] 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 a close contact layer in close contact with the insulating layer 12.
[0093] 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 other examples, it may also be that the organic layer OR1 includes a light-emitting layer formed of a material that emits blue light, and the organic layer OR2 includes a light-emitting layer formed of a material that emits green light. In addition, 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.
[0094] The upper electrodes UE1 and UE2 are formed of a metal material such as an alloy of magnesium and silver (MgAg), for example. The overcoat 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 indices from each other.
[0095] The lens ML1 is formed of a transparent resin material such as an epoxy resin, an acrylic resin, or a polyimide resin.
[0096] Figure 5 It 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 is 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 is 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 is adjacent to the display element DE5 in the second direction Y.
[0097] 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.
[0098] The colors of the light emitted by the display elements DE1 and DE4 (first color), the colors of the light emitted by the display elements DE2 and DE5 (second color), and the colors of the light emitted by the display elements DE3 and DE6 (third color) are different from each other.
[0099] The partition wall 6 also has openings A64, A65, and A66 surrounded by the edge portion AE of the partition wall 6 (see Figure 4 ). The opening A64 (fourth opening) overlaps with the display element DE4. The opening A65 (fifth opening) overlaps with the display element DE5. The opening A66 (sixth opening) overlaps with the display element DE6. In the display area DA, columns in which the openings A61, A65, and A66 are arranged along the second direction Y, and columns in which the openings A62, A63, and A64 are arranged along the second direction Y are formed. These columns are alternately arranged in the first direction X. The lens ML1 overlaps with the openings A64, A65, and A66 and the display elements DE4, DE5, and DE6.
[0100] Next, use Figure 6 to explain the effects of the present embodiment. Figure 6 is a diagram for explaining the effects of the present embodiment. In addition, hereinafter, 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.
[0101] 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 in a direction inclined from the third direction Z toward the X1 side. On the other hand, 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 in a direction inclined from the third direction Z toward the X2 side.
[0102] 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.
[0103] In Figure 5In the example shown, 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.
[0104] Next, the case where the display device DSP of the present embodiment is mounted on a vehicle such as an automobile will be described. Figures 7 to 9 FIG. is a diagram showing the display device DSP of the present embodiment mounted on a vehicle-mounted 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.
[0105] As Figure 7 shown, for example, during driving, it is desired to be able to visually recognize different images on the driver's seat side and the passenger seat side. When the display elements DE1 to DE6 in the display area DA are arranged as Figure 5 shown in the example, a passenger PAS1 sitting on the passenger seat 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, a 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 respectively visually recognize the screens 101 and 102 on which different images are displayed.
[0106] As Figure 8 shown, for example, when it is desired to be able to visually recognize the same image on the driver's seat side and the passenger seat side in a state where the engine is turned 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 on the passenger seat and the driver DRV can visually recognize the screens 101 and 102 on which the same image is displayed.
[0107] As Figure 9As shown, for example, when it is difficult to visually recognize an image from the driver's seat side during driving and, on the other hand, it is possible to visually recognize the image from the passenger seat side, an image signal is supplied to the display elements DE1, DE5, and DE6, and no image signal is supplied to the display elements DE2, DE3, and DE4. As a result, the display elements DE1, DE5, and DE6 are lit according to the image signal, while the display elements DE2, DE3, and DE4 are not lit. Then, the passenger PAS1 in the passenger seat can visually recognize the screen 101 on which the image is displayed, and the driver DRV can visually recognize the dark screen 102 on which almost no image is displayed.
[0108] Figure 10 represents Figure 5 A schematic plan view showing another example of the layout of the openings A61 to A66 shown. Figure 10 The length of each of the openings A61 to A66 in the [reference] along the second direction Y is Figure 5 about half of the length of each of the openings A61 to A66 in the [reference] along the second direction Y. Thus, Figure 10 the number of pixels of the display device DSP shown in [reference] is Figure 5 about twice the number of pixels of the display device DSP shown in [reference]. Therefore, it is possible to improve the resolution of the screen 101 that can be visually recognized by the passenger PAS1 in the passenger seat and the resolution of the screen 102 that can be visually recognized by the driver DRV. In addition, the resolution here is defined as the number of pixels contributing to the display per unit area.
[0109] Figure 11 represents a cross-sectional view showing another structural example of the display device DSP along the Figure 3 A - A' line in [reference]. Figure 11 The display device DSP shown in [reference] is different from the display device DSP shown in Figure 4 in that the cross-sectional shape of the lens ML1 is different.
[0110] The lens ML1 has a flat surface P1 at the top. In the example of Figure 11 , the surface P1 is a surface parallel to the first direction X and the second direction Y. In addition, the surface P1 may be inclined with respect to the plane formed by the first direction X and the second direction Y.
[0111] In the display device DSP shown in Figure 11 , it is also possible to obtain the same effect as the display device DSP shown in Figure 4
[0112] Figure 12 Figure 3 represents a cross-sectional view showing another structural example of the display device DSP along the Figure 3A cross-sectional view of another alternative structure example of the display device DSP along the line A-A'. 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.
[0113] The color filter CF1 is disposed directly above the display element DE1. The color filter CF1 has a color homologous 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 homologous to the emission color of the display element DE2 and is formed of a resin material colored blue as an example.
[0114] The light-shielding layer BM1 overlaps with the peripheral portions of the color filters CF1 and CF2 respectively. In the illustrated example, the light-shielding layer BM1 overlaps with the lens edges ME1 and ME2 in the third direction Z.
[0115] In addition, although not shown, the color filter layer CF includes a color filter disposed directly above Figure 2 the display element DE3 shown. This color filter has a color homologous to the emission color of the display element DE3 and is formed of a resin material colored red as an example.
[0116] In Figure 12 the display device DSP shown, for example, the green light emitted from the display element DE1 is transmitted 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 reduction in display quality can be suppressed.
[0117] In Figure 12 the display device DSP shown, the same effect as that of Figure 4 the display device DSP shown can also be obtained.
[0118] Figure 13 It is a cross-sectional view of another alternative structure example of the display device DSP along the line A-A' in Figure 3 . In the illustrated example, the color filter layer CF is disposed between the organic insulating layer RS2 and a plurality of lenses ML1 in the third direction Z. In addition, the position of the color filter layer CF is not limited to Figure 12 、 Figure 13 the example shown.
[0119] In Figure 13 the display device DSP shown, the same effect as that of Figure 4 the display device DSP shown can also be obtained.
[0120] Figure 14 It is a schematic plan view showing other examples of the layout of openings A61 to A66. Display element DE4 is adjacent to display elements DE1, DE5, and DE6 in the first direction X. Display element DE5 is adjacent to display element DE4 in the first direction X and is adjacent to display element DE6 in the second direction Y. Display element DE6 is adjacent to display element DE4 in the first direction X and is adjacent to display element DE5 in the second direction Y. As described above, openings A61 to A66 respectively overlap with display elements DE1 to DE6.
[0121] In the display area DA, there are formed columns in which a plurality of openings A61 are arranged in the second direction Y, columns in which openings A62 and A63 are alternately arranged in the second direction Y, columns in which openings A65 and A66 are alternately arranged in the second direction Y, and columns in which a plurality of openings A64 are arranged in the second direction Y. These columns are arranged in the first direction X.
[0122] The display device DSP includes a lens ML1 that overlaps with openings A61, A62, A63 and display elements DE1, DE2, DE3, and a lens ML2 that overlaps with openings A64, A65, A66 and 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.
[0123] In Figure 14 In the example shown, a user on the X1 side with respect to the display device DSP can visually recognize the light emitted from 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 display elements DE2, DE3, and DE4. That is, by supplying different image signals to display elements DE1, DE5, DE6 and display elements DE2, DE3, DE4, the users on the X1 side and the users on the X2 side can respectively visually recognize different images.
[0124] Figure 15 It is Figure 14 a schematic plan view showing other examples of the layout of the openings A61 to A66 shown. Figure 15 The length of each of the openings A61 to A66 along the first direction X in Figure 14 is approximately half of the length of each of the openings A61 to A66 along the first direction X in Figure 15 The number of pixels of the display device DSP shown in Figure 14It is approximately twice the number of pixels of the display device DSP shown. Therefore, it is possible to improve the resolution of the screen 101 visually recognizable by the passenger PAS1 in the passenger seat and the resolution of the screen 102 visually recognizable by the driver DRV.
[0125] Figure 16 It is a schematic plan view showing still another example of the layout of the openings A61 to A66. The display element DE4 is adjacent to the display elements DE5 and DE6 in the first direction X, and is 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 is 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 is 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.
[0126] In the display area DA, there are formed columns in which the openings A61 and A64 are alternately arranged in the second direction Y, and columns in which the openings A62, A63, A65, and A66 are arranged in the second direction Y. These columns are alternately arranged in the first direction X.
[0127] 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 in the first direction X in the first direction X. In the display area DA, there are formed columns in which a plurality of lenses ML1 are arranged in the first direction X, and columns in which a plurality of lenses ML2 are arranged in the first direction X. These columns are alternately arranged in the second direction Y.
[0128] Among the lenses ML2 adjacent 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.
[0129] In Figure 16 In the example shown, 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 respectively visually recognize different images.
[0130] Figure 17 is a schematic plan view showing other examples of the layout of the openings A61 to A66 shown in Figure 16 . The lengths of the openings A61 to A66 in in the second direction Y are each Figure 17 about half of the lengths of the openings A61 to A66 in in the second direction Y. Thus, Figure 16 the number of pixels of the display device DSP shown in is Figure 17 about twice the number of pixels of the display device DSP shown in . Therefore, the resolution of the screen 101 visually recognizable by the passenger PAS1 in the passenger seat and the resolution of the screen 102 visually recognizable by the driver DRV can be improved. Figure 16 is a plan view showing other examples of the layout of the openings A61, A62, A63 and the lens ML1. In the example shown in
[0131] Figure 18A , the lens ML1 has a shape in which the corners of the rectangular shape are formed into arc shapes in a plan view. In addition, the lens ML1 may be formed into an elliptical shape or a circular shape in a plan view. The portions of the openings A61, A62, A63 that do not overlap with the lens ML1 overlap with a light-shielding layer ( Figure 18A the light-shielding layer BM shown in ). Figure 4 is a cross-sectional view showing a structural example of the display device DSP along the B-B' line and the C-C' line in .
[0132] Figure 18B is a cross-sectional view showing a structural example of the display device DSP along the Figure 18A B-B' line and the C-C' line in . Figure 18B The upper layer of is a cross-sectional view showing a structural example of the display device DSP along the Figure 18A B-B' line in . The cross-sectional shape of the lens ML1 in the first direction X is convex protruding toward the opposite side of the substrate 10. Therefore, as described above, the viewing angle in the first direction X is restricted.
[0133] Figure 18B The lower layer of is a cross-sectional view showing a structural example of the display device DSP along the Figure 18A C-C' line in . The cross-sectional shape of the lens ML1 in the second direction Y is convex protruding toward the opposite side of the substrate 10. Therefore, similarly to the first direction X, the viewing angle in the second direction Y is restricted. By restricting the viewing angle in the second direction Y, in the case where the display device DSP is mounted on an automobile, for example, it is possible to suppress the display image from being projected onto the windshield of the automobile.
[0134] In addition, in Figure 18B , the illustration between the organic insulating layer RS2 and the substrate 10 is omitted. Between the organic insulating layer RS2 and the substrate 10, the above-described various structures can be applied.
[0135] Figure 19 It is a schematic plan view showing yet another other example of the layout of openings A61 to A66. Figure 19 The layout of the display elements DE1 to DE6, the openings A61 to A66, and the lenses ML1, ML2 shown is the same as Figure 16 the layout of the display elements DE1 to DE6, the openings A61 to A66, and the lenses ML1, ML2 shown. In such a layout situation, the viewing angles in the first direction X and the second direction Y can be restricted.
[0136] Figure 20 It represents Figure 19 a schematic plan view showing another example of the layout of the openings A61 to A66 shown. Figure 20 The length of each of the openings A61 to A66 in Figure 19 in the second direction Y is approximately half of the length of each of the openings A61 to A66 in Figure 20 The number of pixels of the display device DSP shown in Figure 19 is approximately twice the number of pixels of the display device DSP shown in. Therefore, the resolution of the screen 101 visually recognizable by the passenger PAS1 in the passenger seat and the resolution of the screen 102 visually recognizable by the driver DRV can be improved.
[0137] Figure 21 It is a schematic plan view showing another example of the layout of the sub-pixels SP1, SP2, SP3. In Figure 21 this example, the sub-pixel SP3 is arranged between the sub-pixel SP1 and the sub-pixel SP2 in the first direction X.
[0138] In Figure 21 this example, the areas of the openings A51, A52, and A53 are equal. In addition, the areas of the openings A51, A52, and A53 can also be different.
[0139] Similarly, the areas of the openings A61, A62, and A63 are equal. In addition, the areas of the openings A61, A62, and A63 can also be different.
[0140] Figure 22 It is a plan view showing another example of the layout of the openings A61, A62, A63, and the lens ML1. In addition, in Figure 22 this, the illustration of the lower electrode, the organic layer, the upper electrode, etc. of the display element constituting each sub-pixel is omitted.
[0141] 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. In addition, the center line MC1 intersects a portion of the partition wall 6 that extends in the first direction X.
[0142] Figure 23 It 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.
[0143] 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.
[0144] The partition wall 6 also has openings A67, A68, A69 surrounded by the edge portion AE of the partition wall 6 (refer to Figure 4 ). 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, columns in which the openings A61, A63, A62 are repeatedly arranged in this order in the first direction X, columns in which the openings A65, A64, A66 are repeatedly arranged in this order in the first direction X, and columns in which the openings A69, A68, A67 are repeatedly arranged in this order in the first direction X are formed. These columns are arranged in the second direction Y.
[0145] According to other expressions, in the display area DA, columns in which the openings A61, A65, A69 are repeatedly arranged in this order in the second direction Y, columns in which the openings A63, A64, A68 are repeatedly arranged in this order in the second direction Y, and columns in which the openings A62, A66, A67 are repeatedly arranged in this order in the second direction Y are formed. 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.
[0146] Next, useFigure 24 The effects of this embodiment will be described. Figure 24 It is a diagram for explaining the effects of this embodiment.
[0147] 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. In addition, 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.
[0148] 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.
[0149] 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 elements DE2 and DE3. 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 elements DE1 and DE3. A user on the traveling direction side of the light ray 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.
[0150] In Figure 23 In the example shown, 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, 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 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.
[0151] Next, the case where Figure 23 the display device DSP shown is mounted on a vehicle such as an automobile will be described. Figures 25 to 27This is a diagram showing the display device DSP of the present embodiment mounted on a vehicle-mounted device. As an example, the case where the display device DSP is mounted between the driver's seat and the front passenger seat will be described.
[0152] When the display elements DE1 to DE9 in the display area DA are configured as Figure 23 shown in the example, as Figure 25 shown, the passenger PAS1 in the front passenger seat sitting 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. The driver DRV sitting 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. The passenger PAS2 in the rear seat sitting 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. Image signals for displaying images for the passenger PAS1 in the front 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 in the rear seat are supplied to the display elements DE3, DE4, and DE8.
[0153] For example, when the vehicle is in motion, 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 Figure 25 shown, the passenger PAS1 in the front passenger seat and the passenger PAS2 in the rear seat can visually recognize the screens 101 and 103 on which the same image is displayed. In addition, the driver DRV can visually recognize the screen 102 on which an image different from the images visually recognized by the passenger PAS1 in the front passenger seat and the passenger PAS2 in the rear seat is displayed.
[0154] For example, when the engine of the vehicle is turned 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 Figure 26 shown, the passenger PAS1 in the front passenger seat, the driver DRV, and the passenger PAS2 in the rear seat can visually recognize the screens 101, 102, and 103 on which the same image is displayed.
[0155] For example, when it is desired that the image is difficult to visually recognize from the driver's seat side during vehicle travel, image signals are supplied to display elements DE1, DE5, DE9 and display elements DE3, DE4, DE8, and image signals are not supplied to display elements DE2, DE6, DE7. As a result, display elements DE1, DE5, DE9 and display elements DE3, DE4, DE8 are lit according to the image signals, while on the other hand, display elements DE2, DE6, DE7 are not lit. Then, as Figure 27 shown, the passenger PAS1 in the passenger seat and the passenger PAS2 in the rear seat can visually recognize the screens 101, 103 on which images are displayed respectively, and the driver DRV can visually recognize the dark screen 102 on which almost no image is displayed.
[0156] 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 visually recognize different images respectively, different image signals are supplied to display elements DE1, DE5, DE9, display elements DE2, DE6, DE7, and display elements DE3, DE4, DE8 respectively. Then, the passenger PAS1 in the passenger seat, the driver DRV, and the passenger PAS2 in the rear seat can visually recognize the screens 101, 102, 103 on which different images are displayed respectively.
[0157] Figure 28 It is a schematic plan view showing Figure 23 another example of the layout of the openings A61 to A69 shown. Figure 28 The length of each of the openings A61 to A69 in the second direction Y in Figure 23 is about 1 / 3 of the length of each of the openings A61 to A69 in the second direction Y in Figure 28 shown. Thus, Figure 23 the number of pixels of the display device DSP shown in
[0158] Figure 29 is about 3 times the number of pixels of the display device DSP shown in
[0159] 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 with the openings A61, A62, A63 and the display elements DE1, DE2, DE3. The lens ML2 overlaps with the openings A64, A65, A66 and the display elements DE4, DE5, DE6. The lens ML3 overlaps with the openings A67, A68, A69 and the display elements DE7, DE8, DE9. The lenses ML2 and ML3 are configured in the same way as the lens ML1. The lenses ML1, ML2, and ML3 are arranged in this order along the first direction X.
[0160] In Figure 29 In the example shown, a user on the X1 side of the display device DSP can visually recognize the light emitted from the display elements DE1, DE5, and DE9. A user on the X2 side of 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 of the display device DSP can visually recognize the light emitted from the display elements DE3, DE4, and DE8.
[0161] Figure 30 It is a schematic plan view showing Figure 29 another example of the layout of the openings A61 to A69 shown. Figure 30 The length of each of the openings A61 to A69 in the Figure 29 along the first direction X is about 1 / 3 of the length of each of the openings A61 to A69 in the Figure 30 The number of pixels of the display device DSP shown in Figure 29 is about 3 times the number of pixels of the display device DSP shown in Figure 29 Therefore, it is possible to improve the resolution of the screen 101 visually recognizable by the passenger PAS1 in the passenger seat, the resolution of the screen 102 visually recognizable by the driver DRV, and the resolution of the screen 103 visually recognizable by the passenger PAS2 in the rear seat.
[0162] All display devices that those skilled in the art can implement by making appropriate design changes based on the display device described as the embodiment of the present invention belong to the scope of the present invention as long as they include the gist of the present invention.
[0163] In the scope of the idea of the present invention, those skilled in the art can think of various modification examples, and these modification examples are also interpreted as belonging to the scope of the present invention. For example, a solution obtained by appropriately adding, deleting, or changing the design of structural elements to the above-described embodiment by those skilled in the art, or a solution obtained by adding, omitting, or changing conditions of a process, belongs to the scope of the present invention as long as it has the gist of the present invention.
[0164] In addition, with regard to other effects brought about by the modes described in the above embodiments, effects that are clear from the description of this specification or effects that can be appropriately conceived by those skilled in the art are of course construed as being brought about by the present invention.
Claims
1. A display device, characterized in that: have: substrate; a first light emitting element and a second light emitting element, which are arranged above the substrate and are adjacent to each other in a first direction; a lower portion, which surrounds the first light emitting element and the second light emitting element respectively; an upper portion disposed on the lower portion and having a first opening surrounded by an edge protruding from a side surface of the lower portion and overlapping with the first light emitting element, and a second opening overlapping with the second light emitting element; as well as a plurality of lenses formed in a convex shape protruding toward the opposite side of the substrate, The plurality of lenses include a first lens overlapping the first opening and the second opening.
2. The display device according to claim 1, characterized in that further comprising a third light emitting element, the third light emitting element being 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 the first direction, The lower portion surrounds the third light emitting element, The upper portion further has a third opening surrounded by the edge and overlapping with the third light emitting element. The first lens overlaps with the third opening.
3. The display device according to claim 1, characterized in that further comprising a third light emitting element, the third light emitting element being arranged above the substrate and between the first light emitting element and the second light emitting element, The lower portion surrounds the third light emitting element, The upper portion further has a third opening surrounded by the edge and overlapping with the third light emitting element. The first lens overlaps with the third opening.
4. The display device according to claim 2 or 3, characterized in that: The first light-emitting element, the second light-emitting element, and the third light-emitting element have light-emitting layers formed of a material that emits light of different colors.
5. The display device according to claim 2, characterized in that: The present invention further comprises: a fourth light emitting element disposed above the substrate and adjacent to the third 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 first 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 portion surrounds each of the fourth light emitting element, the fifth light emitting element, and the sixth light emitting element. The upper portion further comprises: a fourth opening surrounded by the edge and overlapping the fourth light emitting element; a fifth opening overlapping the fifth light emitting element; and a sixth opening overlapping the sixth light emitting element. The first lens overlaps the fourth opening, the fifth opening, and the sixth opening.
6. The display device according to claim 2, characterized in that: The device further comprises: a fourth light emitting element disposed above the substrate and adjacent to the first light emitting element in the first direction; and a fifth light emitting element adjacent to the fourth light emitting element in the first 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, The lower portion surrounds each of the fourth light emitting element, the fifth light emitting element, and the sixth light emitting element. The upper portion further comprises: a fourth opening surrounded by the edge and overlapping the fourth light emitting element; a fifth opening overlapping the fifth light emitting element; and a sixth opening overlapping the sixth light emitting element. The plurality of lenses include a second lens overlapping the fourth opening, the fifth opening, and the sixth opening.
7. The display device according to claim 2, characterized in that: The device further comprises: a fourth light emitting element disposed above the substrate and 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, 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, The lower portion surrounds each of the fourth light emitting element, the fifth light emitting element, and the sixth light emitting element. The upper portion further comprises: a fourth opening surrounded by the edge and overlapping the fourth light emitting element; a fifth opening overlapping the fifth light emitting element; and a sixth opening overlapping the sixth light emitting element. The plurality of lenses include a second lens overlapping the fourth opening and a third lens overlapping the fifth opening and the sixth opening.
8. The display device according to claim 7, characterized in that: The cross-sectional shape of each of the plurality of lenses along the first direction and the second direction is a convex shape protruding toward the opposite side of the substrate.
9. The display device according to claim 2, characterized in that: Each of the plurality of lenses has a center line parallel to the second direction, The center line overlaps the upper portion.
10. The display device according to claim 3, characterized in that: Each of the plurality of lenses has a center line parallel to a second direction intersecting the first direction, The center line intersects the upper portion.
11. The display device according to any one of claims 5 to 7, characterized in that: The first light emitting element and the fourth light emitting element have light emitting layers formed of a material emitting light of the same first color. The second light emitting element and the fifth light emitting element have light emitting layers formed of a material that emits light of the same second color. The third light emitting element and the sixth light emitting element have light emitting layers formed of a material emitting light of the same third color. The first color, the second color, and the third color are different colors from each other.
12. The display device according to claim 1, characterized in that: The first light-emitting element includes a light-emitting layer formed of a material that emits green or blue light.
13. The display device according to claim 2, characterized in that: The first opening, the second opening, and the third opening have different areas.
14. The display device according to claim 3, characterized in that: The first opening, the second opening, and the third opening have the same area.
15. The display device according to claim 1, characterized in that: Each of the plurality of lenses has a first lens edge and a second lens edge that are parallel to a second direction intersecting the first direction. The display device further includes a light shielding layer overlapping the first lens edge and the second lens edge.
16. The display device according to claim 15, characterized in that: The first lens edge and the second lens edge overlap with the upper portion in a plan view.
17. The display device according to claim 1, characterized in that: Each of the plurality of lenses has a flat surface on the top.
18. The display device according to claim 1, characterized in that: It also includes: 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, The second organic insulating layer is thicker than the first organic insulating layer.
19. The display device according to claim 18, characterized in that A color filter is further provided between the sealing layer and the second organic insulating layer.
20. The display device according to claim 1, characterized in that The plurality of lenses are formed of a transparent resin material.