CN114256312B - Display panel and display device - Google Patents
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- CN114256312B CN114256312B CN202111498980.9A CN202111498980A CN114256312B CN 114256312 B CN114256312 B CN 114256312B CN 202111498980 A CN202111498980 A CN 202111498980A CN 114256312 B CN114256312 B CN 114256312B
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- 239000000758 substrate Substances 0.000 claims abstract description 100
- 239000011159 matrix material Substances 0.000 claims description 55
- 239000003086 colorant Substances 0.000 claims description 13
- 239000012780 transparent material Substances 0.000 claims description 3
- 239000011358 absorbing material Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 33
- 238000010586 diagram Methods 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005538 encapsulation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004642 Polyimide Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/38—Devices specially adapted for multicolour light emission comprising colour filters or colour changing media [CCM]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/85—Arrangements for extracting light from the devices
- H10K50/856—Arrangements for extracting light from the devices comprising reflective means
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
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Abstract
The invention discloses a display panel and a display device, which relate to the technical field of display, wherein the display panel comprises: a substrate base; a display layer including a pixel definition layer and a plurality of light emitting units; the light regulation layer, the light regulation layer includes: the first color resistors are arranged corresponding to the light-emitting units along the direction perpendicular to the plane of the substrate, and cover the light-emitting units corresponding to the first color resistors; at least one light ray adjusting structure, wherein one light ray adjusting structure is positioned between two adjacent first color resistors, and the light ray adjusting structure is correspondingly arranged with the pixel defining layer; along the direction perpendicular to the plane of the substrate, the light adjusting structure and two first color resistances close to the light adjusting structure are overlapped partially, and the refractive index of the first color resistance is larger than that of the light adjusting structure. The invention can reduce the thickness of the display panel and improve the display effect of the display panel.
Description
Technical Field
The present invention relates to the field of display technologies, and more particularly, to a display panel and a display device.
Background
The organic light emitting display panel has advantages of self-luminescence, ultra-thin, high contrast, ultra-wide viewing angle, low power consumption, high display brightness, bright color, and being capable of making flexible display, etc., which is an important point of current interest. Light and thin organic light emitting display panels and display devices have become the direction of future display technology development. For the organic light-emitting display panel, how to ensure the display effect of the organic light-emitting display panel while further thinning and lightening is a current technical problem.
Therefore, the display panel with light weight and good display effect is provided, which is a technical problem to be solved in the prior art.
Disclosure of Invention
In view of this, the present invention provides a display panel and a display device capable of improving the display effect of the display panel while reducing the thickness of the display panel.
The present invention provides a display panel, comprising: a substrate base; the display layer is positioned on one side of the substrate base plate and comprises a pixel definition layer and a plurality of light-emitting units, the pixel definition layer comprises a plurality of first openings, and the light-emitting units are positioned in the first openings; the light regulation layer is located the one side that the display layer kept away from the substrate base plate, and the light regulation layer includes: the first color resistors are arranged corresponding to the light-emitting units along the direction perpendicular to the plane of the substrate, and cover the light-emitting units corresponding to the first color resistors; at least one light ray adjusting structure, wherein one light ray adjusting structure is positioned between two adjacent first color resistors, and the light ray adjusting structure is correspondingly arranged with the pixel defining layer; along the direction perpendicular to the plane of the substrate, the light adjusting structure and two first color resistances close to the light adjusting structure are overlapped partially, and the refractive index of the first color resistance is larger than that of the light adjusting structure.
Based on the same thought, the invention also provides a display device which comprises the display panel.
Compared with the prior art, the display panel and the display device provided by the invention have the advantages that at least the following effects are realized:
In the display panel provided by the invention, the light adjusting layer comprises a plurality of first color resistors which are arranged corresponding to the light emitting units along the direction perpendicular to the plane of the substrate, and the first color resistors cover the light emitting units corresponding to the first color resistors. The external environment light passes through the first color resistor, the light with the same color as the first color resistor partially penetrates through the first color resistor, and the light with different colors from the first color resistor cannot penetrate through the first color resistor so as to be filtered by the first color resistor, so that the first color resistor can reduce the influence of the external environment light on the display effect of the display panel to a certain extent, thereby reducing the reflection of the external environment light entering the display panel, and when the light which enters the display panel through the first color resistor and is reflected inside is emitted towards the light emitting surface of the display panel, the light passing through the first color resistor is absorbed by the first color resistor, thereby reducing the emission of the light reflected after the external environment light enters the display panel, effectively reducing the influence of the external environment light on the display effect of the display panel, and achieving the anti-reflection effect. The light adjusting layer further comprises at least one light adjusting structure, one light adjusting structure is located between two adjacent first color resistors, the light adjusting structure and the pixel defining layer are correspondingly arranged, the light adjusting structure and the two first color resistors close to the light adjusting structure are overlapped in a direction perpendicular to the plane where the substrate is located, the refractive index of the first color resistor is larger than that of the light adjusting structure, total reflection occurs on a contact surface of the light adjusting structure and the first color resistor, large-view-angle light emitted by the light emitting unit is enabled to deflect towards the forward-looking angle direction, the brightness of the forward-looking angle light is improved, and the display effect of the display device is improved due to the fact that the human eyes observe the display panel to be in the forward-looking angle direction. According to the invention, the anti-reflection effect can be realized through the first color resistor in the light adjusting layer, and meanwhile, the large-visual angle light emitted by the light emitting unit can be adjusted through the first color resistor and the light adjusting structure, so that the display effect of the display device is improved, a plurality of layers of adjusting films are not required, and the thickness of the display panel is reduced.
Of course, it is not necessary for any one product to practice the invention to achieve all of the technical effects described above at the same time.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic diagram of a film structure of a display panel according to the present invention;
FIG. 2 is a schematic diagram of a film structure of another display panel according to the present invention;
FIG. 3 is a schematic diagram of a film structure of another display panel according to the present invention;
FIG. 4 is a schematic diagram of a film structure of another display panel according to the present invention;
FIG. 5 is a schematic diagram of a film structure of another display panel according to the present invention;
FIG. 6 is a schematic diagram of a film structure of another display panel according to the present invention;
FIG. 7 is a schematic diagram of a film structure of a light adjusting structure according to the present invention;
FIG. 8 is a schematic diagram of a film structure of another display panel according to the present invention;
FIG. 9 is a schematic view of a film structure of another light adjusting structure according to the present invention;
fig. 10 is a schematic diagram of a film structure of another display panel according to the present invention;
Fig. 11 is a schematic plan view of a display device according to the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Fig. 1 is a schematic diagram of a film structure of a display panel according to the present invention, and referring to fig. 1, a display panel is provided in this embodiment, and includes a substrate 10, where the substrate 10 may be a rigid substrate or a flexible substrate. When the substrate 10 is a rigid substrate, the substrate 10 may be a glass substrate. When the substrate 10 is a flexible substrate, the substrate 10 may be a Polyimide (PI) substrate.
The display panel further includes a display layer 20, the display layer 20 being located at one side of the substrate 10, the display layer including a pixel defining layer 21 and a plurality of light emitting units 22, the pixel defining layer 21 including a plurality of first openings 211, the light emitting units 22 being located within the first openings 211. Alternatively, the plurality of light emitting units 22 may include a red light emitting unit, a green light emitting unit, and a blue light emitting unit.
The display panel further comprises a light adjusting layer 30, the light adjusting layer 30 being located on a side of the display layer 20 remote from the substrate 10.
Optionally, the display panel further includes an encapsulation layer 40, where the encapsulation layer 40 is disposed on a side of the display layer 20 away from the substrate 10, the encapsulation layer 40 is used for encapsulating the display layer 20, and the light adjusting layer 30 may be disposed on a side of the encapsulation layer 40 away from the display layer 20.
Specifically, the light adjusting layer 30 includes a plurality of first color resistors 31, and the first color resistors 31 are disposed corresponding to the light emitting units 22 along a direction perpendicular to the plane of the substrate 10, and the first color resistors 31 cover the light emitting units 22 corresponding thereto. The external environment light passes through the first color resistor 31, the light with the same color as the first color resistor 31 partially passes through the first color resistor 31, and the light with different colors as the first color resistor 31 cannot pass through the first color resistor 31 and is filtered by the first color resistor 31, so that the first color resistor 31 can reduce the influence of the external environment light on the display effect of the display panel to a certain extent, the external environment light is reduced to enter the display panel for reflection, and when the light which enters the display panel for reflection through the first color resistor 31 and is emitted towards the light emitting surface of the display panel, the light after passing through the first color resistor 31 is absorbed by the first color resistor 31, so that the emission of the light reflected after the external environment light enters the display panel is reduced, the influence of the external environment light on the display effect of the display panel is effectively reduced, and the anti-reflection effect is achieved. The thickness of the first color resist 31 is small relative to the antireflection by providing the circular polarizer, and the thickness of the display panel can be reduced while antireflection. Alternatively, when the display panel is a flexible display panel, reducing the thickness of the display panel will facilitate bending of the display panel.
When the first color resistor 31 is a red color resistor, only a portion of the red light in the external environment light is emitted into the display panel through the red color resistor, the blue light and the green light are filtered by the red color resistor, the red light is emitted into the display panel and reflected by the metal in the display panel to be emitted toward the light emitting surface of the display panel, the red light passes through the red color resistor again, and a portion of the red light is absorbed by the red color resistor to be emitted. Similarly, when the first color resistor 31 is another color resistor, reference may be made to the above description, and the disclosure is not repeated here.
Alternatively, the plurality of first color resistors 31 may include a red color resistor, a green color resistor, and a blue color resistor, and accordingly, the red light emitting unit emitting red light corresponds to the red color resistor, the green light emitting unit emitting green light corresponds to the green color resistor, and the blue light emitting unit emitting blue light corresponds to the blue color resistor.
The light adjusting layer 30 further includes at least one light adjusting structure 32, where one light adjusting structure 32 is located between two adjacent first color resistors 31, where the light adjusting structure 32 is disposed corresponding to the pixel defining layer 21, and along a direction perpendicular to the plane where the substrate 10 is located, the light adjusting structure 32 and two first color resistors 31 that are close to each other are partially overlapped, and refractive index of the first color resistor 31 is greater than that of the light adjusting structure 32, and total reflection or refraction occurs on a contact surface between the light adjusting structure 32 and a portion of the first color resistor 31 of the large-view-angle light emitted by the light emitting unit 22, so that the large-view-angle light emitted by the light emitting unit 22 deflects towards a front view angle direction, and brightness of the front view angle is improved.
In this embodiment, the light adjusting layer 30 can achieve an anti-reflection effect through the first color resistor 31, and simultaneously can adjust the large-viewing angle light emitted by the light emitting unit 22 through the first color resistor 31 and the light adjusting structure 32, so that the display effect of the display device is improved, a plurality of layers of adjusting films are not required, and the thickness of the display panel is further reduced.
It should be noted that, the light with a small viewing angle refers to a light with a small included angle with a direction perpendicular to the plane of the substrate 10, the light with a large viewing angle refers to a light with a large included angle with a direction perpendicular to the plane of the substrate 10, and, for example, a light with an included angle smaller than or equal to 30 ° with a direction perpendicular to the plane of the substrate 10 is a light with a small viewing angle, and a light with an included angle greater than 30 ° with a direction perpendicular to the plane of the substrate 10 is a light with a large viewing angle. In the related embodiments of the present invention, the related descriptions are applicable together, and the present invention will not be described in detail.
The front view angle direction is a direction perpendicular to the plane of the substrate 10. In the related embodiments of the present invention, the related descriptions are applicable together, and the present invention will not be described in detail.
With continued reference to fig. 1, in some alternative embodiments, the vertical projection of the light-adjusting structure 32 on the plane of the substrate 10 is located within the vertical projection of the pixel defining layer 21 on the plane of the substrate 10, so as to avoid that the arrangement of the light-adjusting structure 32 affects the front-view light emitted from the light-emitting unit 22.
Fig. 2 is a schematic diagram of a film structure of another display panel according to the present invention, referring to fig. 2, in some alternative embodiments, two first color resistors 31 adjacent to one light adjusting structure 32 are a first color resistor 311 and a second color resistor 312, respectively, and the first color resistor 311 and the second color resistor 312 are arranged along a first direction X, and the first direction X is parallel to a plane of the substrate 10.
The light emitting unit 22 includes a first light emitting unit 221 and a second light emitting unit 222 having different colors, and the different colors of the first light emitting unit 221 and the second light emitting unit 222 means that the colors of light emitted from the first light emitting unit 221 and the second light emitting unit 222 are different. The first color resistor 311 is disposed corresponding to the first light emitting unit 221, and the vertical projection of the first color resistor 311 on the plane of the substrate 10 at least partially covers the vertical projection of the first light emitting unit 221 disposed corresponding to the first color resistor on the plane of the substrate 10, where the color of the first color resistor 311 is the same as the color of the light emitted by the first light emitting unit 221, and the light emitted by the first light emitting unit 221 from the light emitting side of the display panel is not affected by the first color resistor 311. The second color resistor 312 is disposed corresponding to the second light emitting unit 222, and the vertical projection of the second color resistor 312 on the plane of the substrate 10 at least partially covers the vertical projection of the second light emitting unit 222 disposed corresponding to the vertical projection on the plane of the substrate 10, where the color of the second color resistor 312 is the same as the color of the light emitted by the second light emitting unit 222, and the second color resistor 312 does not affect the light emitted by the second light emitting unit 222 from the light emitting side of the display panel.
Note that the naming of the first color resistor and the second color resistor is only for illustrating that the colors of the two first color resistors 31 adjacent to one light adjusting structure 32 may be different, and the color of the two first color resistors 31 adjacent to one light adjusting structure 32 is not specifically limited in this embodiment.
The light adjusting structure 32 includes a first side 321, a second side 322, and a bottom 323. Wherein, along the direction perpendicular to the plane of the substrate 10, the bottom surface 323 is located at one side of the light adjusting structure 32 near the substrate 10. The first side 321 and the second side 322 are located at two sides of the light adjusting structure 32 along the first direction X, and the first color resistor 311 covers the first side 321, so that the large viewing angle light emitted by the first light emitting unit 221 is totally reflected or refracted at the first side 321, and similarly, the second color resistor 312 covers the second side 322, so that the large viewing angle light emitted by the second light emitting unit 222 is totally reflected or refracted at the first side 321.
Fig. 3 is a schematic diagram of a film structure of another display panel according to the present invention, referring to fig. 3, in some alternative embodiments, the first side 321 is a plane, and an included angle between the first side 321 and the bottom 323 is smaller than 90 °, so that a portion of light with a large viewing angle emitted by the first light emitting unit 221 is totally reflected on the first side 321, and the light with the large viewing angle after being totally reflected deflects toward the front viewing angle direction, and a portion of light with the large viewing angle emitted by the first light emitting unit 221 is refracted on the first side 321, and the refracted light deflects toward the front viewing angle direction, which is favorable for improving the brightness of the light with the front viewing angle, and improving the display effect of the display device.
Similarly, the second side face 322 is a plane, and the included angle between the second side face 322 and the bottom face 323 is smaller than 90 degrees, so that part of light rays with large viewing angles emitted by the second light emitting unit 222 are totally reflected on the second side face 323, the light rays with large viewing angles emitted by the second light emitting unit 222 deflect towards the forward viewing angle direction, the light rays with large viewing angles emitted by the second light emitting unit 222 are refracted on the second side face 323, the refracted light rays deflect towards the forward viewing angle direction, the brightness of the light rays with large viewing angles is improved, and the display effect of the display device is improved.
With continued reference to fig. 2, in some alternative embodiments, the first side 321 is an arc surface, and the first side 321 protrudes towards a direction away from the second side 322, so that a portion of the light with a large viewing angle emitted by the first light emitting unit 221 is totally reflected on the first side 321, and the light after total reflection deflects towards the forward viewing angle direction, and a portion of the light with a large viewing angle emitted by the first light emitting unit 221 is refracted on the first side 321, and the refracted light deflects towards the forward viewing angle direction, which is beneficial to improving the brightness of the light with a positive viewing angle and improving the display effect of the display device.
Similarly, the second side 322 is an arc surface, the second side 322 protrudes towards a direction away from the first side 321, so that part of light rays with large viewing angles emitted by the second light emitting unit 222 are totally reflected on the second side 323, the light rays after total reflection deflect towards the positive viewing angle direction, part of light rays with large viewing angles emitted by the second light emitting unit 222 are refracted on the second side 323, the refracted light rays deflect towards the positive viewing angle direction, the brightness of the light rays with large viewing angles is improved, and the display effect of the display device is improved.
With continued reference to fig. 2, in some alternative embodiments, the light modulating structure 32 includes a first surface 324, the first surface 324 being located on a side of the light modulating structure 32 remote from the substrate 10 in a direction perpendicular to the plane of the substrate 10.
The first color resist 311 and the second color resist 312 are in contact, and the perpendicular projection of the contact surfaces of the first color resist 311 and the second color resist 312 on the plane of the substrate 10 is located in the perpendicular projection of the first surface 324 on the plane of the substrate 10, so as to ensure that the first color resist 311 covers the first side 321, the second color resist 312 covers the second side 322, and the second color resist 312 and the first light emitting unit 221 do not overlap, and the first color resist 311 and the second light emitting unit 222 do not overlap in the direction perpendicular to the plane of the substrate 10. Meanwhile, the first color resist 311 and the second color resist 312 extend to contact above the first surface 324, so as to improve the problem of crosstalk between the light rays of different colors emitted by the first light emitting unit 221 and the second light emitting unit 222.
Fig. 4 is a schematic diagram of a film structure of another display panel according to the present invention, and referring to fig. 4, in some alternative embodiments, the pixel defining layer 21 includes a light absorbing material, and after the ambient light enters the display panel, the pixel defining layer 21 can absorb a portion of the ambient light, so as to reduce the ambient light entering the display panel, thereby reducing the influence of the ambient light reflected inside the display panel on the display effect of the display panel, and achieving the anti-reflection effect.
Fig. 5 is a schematic diagram of a film structure of another display panel according to the present invention, and referring to fig. 5, in some alternative embodiments, the first color resist 311 and the second color resist 312 partially overlap along a direction perpendicular to a plane of the substrate 10.
The vertical projection of the first surface 324 on the plane of the substrate 10 is located in the vertical projection of the first color resistor 311 on the plane of the substrate, and the vertical projection of the first surface 324 on the plane of the substrate 10 is located in the vertical projection of the second color resistor 312 on the plane of the substrate 10, that is, in the direction perpendicular to the plane of the substrate 10, the first surface 324 is covered by the first color resistor 311 and the second color resistor 312, the first color resistor 311 and the second color resistor 312 are overlapped on one side of the first surface 324 far away from the substrate 10, and compared with the single arrangement of the first color resistor 311 or the second color resistor 312, the overlapping of the first color resistor 311 and the second color resistor 312 can filter more external ambient light, so as to further reduce the external ambient light entering the display panel, and achieve the anti-reflection effect.
Alternatively, when the first color resistor 311 and the second color resistor 312 are overlapped on the side of the first surface 324 away from the substrate 10 along the direction perpendicular to the plane of the substrate 10, the boundary between the first color resistor 311 and the second color resistor 312 may not be provided with a black matrix, which effectively reduces the manufacturing process and reduces the production cost.
Fig. 6 is a schematic diagram of a film structure of another display panel according to the present invention, referring to fig. 6, in some alternative embodiments, the light adjusting layer 30 further includes a black matrix BM, the black matrix BM includes a first black matrix unit BM1 located between a first color resistor 311 and a second color resistor 312, the first black matrix unit BM1 can improve the problem of crosstalk between different colors of light emitted by the first light emitting unit 221 and the second light emitting unit 222, and the first black matrix unit BM1 can absorb part of the ambient light, so as to reduce the ambient light from entering the display panel, thereby achieving the anti-reflection effect.
Along the direction perpendicular to the plane of the substrate 10, the light adjusting structure 32 covers the first black matrix unit BM1, and the first surface 324 is concave, so that the first surface 324 is concave towards the direction close to the first black matrix unit BM1, and external ambient light is deflected towards the direction close to the first black matrix unit BM1 after passing through the first surface 324, so that more external ambient light is absorbed by the first black matrix unit BM1, and the external ambient light is further reduced to enter the display panel, thereby achieving the anti-reflection effect. Optionally, the geometric center of the light adjusting structure 32 is disposed corresponding to the geometric center of the first black matrix unit BM 1.
Fig. 7 is a schematic diagram of a film structure of a light adjusting structure according to the present invention, referring to fig. 6 and 7, in some alternative embodiments, in a first section S1, a first surface 324 includes two end points 3241, wherein the first section S1 is perpendicular to a plane of the substrate 10, and the first section S1 is parallel to a first direction X.
In the first direction X, the distance between the two end points 3241 and the first black matrix unit BM1 is d, d > 0, and since the external ambient light is deflected toward a direction approaching the first black matrix unit BM1 after passing through the first surface 324 and is absorbed by the first black matrix unit BM1, the length of the first black matrix unit BM1 in the first direction X may be set smaller than the length of the first surface 324 in the first direction X.
Since the light adjusting structure 32 covers the first black matrix unit BM1 in a direction perpendicular to the plane of the substrate 10, the distance between the end point 3241 and the first black matrix unit BM1 is h > 0 in the direction perpendicular to the plane of the substrate 10, so that the first surface 324 is concavely disposed toward the direction close to the first black matrix unit BM1, and the first surface 324 is located at a side of the first black matrix unit BM1 away from the substrate 10, so that the external ambient light is deflected toward the direction close to the first black matrix unit BM1 after passing through the first surface 324 and is absorbed by the first black matrix unit BM 1.
And along the first direction X, the distance between the two end points 3241 and the first black matrix unit BM1 is d, the distance between the two end points 3241 and the first black matrix unit BM1 is h, that is, the first black matrix unit BM1 is centrally disposed in the light adjusting structure 32, and the deflection conditions of the light passing through the two end points 3241 towards the direction close to the first black matrix unit BM1 tend to be the same, when the external ambient light deflects towards the direction close to the first black matrix unit BM1 after passing through the first surface 324 and is absorbed by the first black matrix unit BM1, the length of the first black matrix unit BM1 in the first direction X can be reduced, the size of the first black matrix unit BM1 is effectively reduced, and the production cost is reduced.
With continued reference to fig. 6 and 7, in some alternative embodiments, the refractive index of the first color resistor 31 is n1, the refractive index of the light adjusting structure 32 is n2, and the angles between the normal L1 at the two end points 3241 and the direction perpendicular to the plane of the substrate 10 are each θ 1.
In order to avoid total reflection of the external ambient light after entering the display panel, the first surface 324 needs to satisfy:
Light passing through the end point 3241 and extending in a direction perpendicular to the plane of the substrate 10 is refracted from the outside of the display panel through the first surface 324, and an included angle between the refracted light and the direction perpendicular to the plane of the substrate 10 is θ 3. In order to make the external ambient light enter the display panel and then be refracted at the first surface 324, and the refracted light is emitted to the first black matrix unit BM1, and is absorbed by the first black matrix unit BM1, it is required to satisfy the following requirements:
according to the law of refraction: n1×sin θ 1＝n2×sin(θ1+θ3);
Thus, the first and second heat exchangers are arranged,
I.e.
Thus, the first and second substrates are bonded together,The light is prevented from being totally reflected on the first surface 324 after entering the display panel, and the light is refracted on the first surface 324 after entering the display panel, and the refracted light is emitted to the first black matrix unit BM1, so as to be absorbed by the first black matrix unit BM 1.
The angles between the normal L1 at the two end points 3241 and the direction perpendicular to the plane of the substrate 10 are all θ 1, the deflection of the light passing through the two end points 3241 toward the direction close to the first black matrix unit BM1 tends to be the same, and the front view light passing through the two end points 3241 can be absorbed by the first black matrix unit BM 1. Meanwhile, along the first direction X, the distance between the two end points 3241 and the first black matrix unit BM1 is d, and the distance between the two end points 3241 and the first black matrix unit BM1 is h, that is, the first black matrix unit BM1 is centrally arranged in the light-adjusting structure 32, so that the length of the first black matrix unit BM1 in the first direction X is reduced, the size of the first black matrix unit BM1 is reduced, and the production cost is reduced.
With continued reference to fig. 6 and 7, in some alternative embodiments, the first surface 324 is an arc of a circle, the radius of the arc of a circle being R,Wherein D1 is the length of the arc line in the first direction X, so that the light extending along the direction perpendicular to the plane of the substrate 10 is refracted from the outside of the display panel through the first surface 324, and the refracted light is emitted to the first black matrix unit BM1, so as to be absorbed by the first black matrix unit BM1, thereby effectively reducing the external ambient light from entering the display panel, and achieving the anti-reflection effect.
Fig. 8 is a schematic view of a film structure of another display panel provided by the present invention, and fig. 9 is a schematic view of a film structure of another light adjusting structure provided by the present invention, referring to fig. 8 and 9, in some alternative embodiments, the first surface 324 includes a first plane 3242, a second plane 3243 and a third plane 3244 connected to each other, and the first plane 3242 and the third plane 3244 are located at two ends of the second plane 3243 along the first direction X.
The vertical projection of the second plane 3243 on the plane of the substrate 10 is located within the vertical projection of the first black matrix unit BM1 on the plane of the substrate 10, so that light extending in a direction perpendicular to the plane of the substrate 10 is directly emitted to the first black matrix unit BM1 from the outside of the display panel through the second plane 3243, and is absorbed by the first black matrix unit BM 1.
The second plane 3243 is parallel to the plane of the substrate 10, and the angles between the first plane 3242, the third plane 3244 and the second plane 3243 are all θ 2,θ2＝θ1, and becauseThe light beam is prevented from being totally reflected in the first plane 3242 and the third plane 3244 after the external ambient light enters the display panel, and the external ambient light beam is prevented from being refracted in the first plane 3242 and the third plane 3244 after the external ambient light enters the display panel, and the refracted light beam is emitted to the first black matrix unit BM1, so that the light beam is absorbed by the first black matrix unit BM 1.
The included angle between the two planes is within the range ofTherefore, the angle between the first plane 3242 and the second plane 3243, and the angle between the third plane 3244 and the second plane 3243 are θ 2 shown in fig. 9.
It should be noted that, for clarity of illustrating the structure of the light adjusting structure 32, the light adjusting structure 32 is not filled in fig. 7 and 9, and the corresponding filling is shown in fig. 6 and 8.
Fig. 10 is a schematic diagram of a film structure of another display panel according to the present invention, and referring to fig. 10, in some alternative embodiments, the material of the light adjusting structure 32 is a transparent material, so that the light adjusting structure 32 can be made of the same transparent material, which effectively simplifies the process and reduces the production cost.
With continued reference to fig. 6, in some alternative embodiments, the light-modulating structure 32 is a second color resistor 33, the second color resistor 33 comprising a third color resistor 331 and a fourth color resistor 332 aligned along the first direction X.
Along the direction perpendicular to the plane of the substrate 10, the first color resistor 311 covers the third color resistor 331, the first color resistor 311 and the third color resistor 331 have the same color, the second color resistor 312 covers the fourth color resistor 332, the second color resistor 312 and the fourth color resistor 332 have the same color, that is, the third color resistor 331 can be made of a color resistor material with the same color and different refractive index as the first color resistor 311, the refractive index of the first color resistor 311 is greater than that of the third color resistor 331, the first side 321 is the side surface of the third color resistor 331 far away from the fourth color resistor 332 along the first direction X, the first side surface 321 is covered by the first color resistor 311, and the large-view-angle light emitted by the first light emitting unit 221 is totally reflected or refracted at the first side surface 321, so that the large-view-angle light emitted by the first light emitting unit 221 deflects towards the forward-viewing angle direction, and the forward-viewing angle light brightness is improved; the fourth color resistor 332 may be made of a color resistor material having the same color as the second color resistor 312 and a different refractive index, the refractive index of the second color resistor 312 is greater than that of the fourth color resistor 332, the second side 322 is a side surface of the fourth color resistor 332 far away from the third color resistor 331 along the first direction X, the second side 322 is covered by the second color resistor 312, and the light with a large viewing angle emitted by the second light emitting unit 222 is totally reflected or refracted at the second side 322, so that the light with a large viewing angle emitted by the second light emitting unit 222 deflects towards the direction of the front viewing angle, and the brightness of the front viewing angle is improved.
Meanwhile, the third color resistor 331 may be made of the same color as the first color resistor 311, along the first direction X, the third color resistor 331 is located on a side of the light adjusting structure 32 near the first light emitting unit 221, the color of the third color resistor 331 is the same as the light emitting color of the first light emitting unit 221, the light emitted by the first light emitting unit 221 may be emitted through the first color resistor 311 and the third color resistor 331, the light emitting color of the second light emitting unit 222 is different from the color of the third color resistor 331, so that the light emitted by the second light emitting unit 222 cannot pass through the first color resistor 311 and the third color resistor 331, that is, the light with a large viewing angle emitted by the second light emitting unit 222 may be blocked through the first color resistor 311 and the third color resistor 331; similarly, the fourth color resistor 332 may be made of the same color as the second color resistor 312, and along the first direction X, the fourth color resistor 332 is located on one side of the light adjusting structure 32 near the second light emitting unit 222, the color of the fourth color resistor 332 is the same as the light emitting color of the second light emitting unit 222, the light emitted by the second light emitting unit 222 can be emitted through the second color resistor 312 and the fourth color resistor 332, the light emitting color of the first light emitting unit 221 is different from the color of the fourth color resistor 332, so that the light emitted by the first light emitting unit 221 cannot be transmitted through the second color resistor 312 and the fourth color resistor 332, that is, the light with a large viewing angle emitted by the first light emitting unit 221 can be blocked by the second color resistor 312 and the fourth color resistor 332, thereby improving the problem of crosstalk between the light with different colors emitted by the first light emitting unit 221 and the second light emitting unit 222.
In some alternative embodiments, please refer to fig. 11, fig. 11 is a schematic plan view of a display device provided by the present invention, and a display device 1000 provided by the present embodiment includes a display panel 100 provided by the above-mentioned embodiments of the present invention. The embodiment of fig. 11 is only an example of a vehicle-mounted display device, and the display device 1000 is described, and it is to be understood that the display device 1000 provided in the embodiment of the present invention may be any other display device 1000 having a display function, such as a computer, a television, a mobile phone, etc., which is not particularly limited in this respect. The display device 1000 provided in the embodiment of the present invention has the beneficial effects of the display panel 100 provided in the embodiment of the present invention, and the specific description of the display panel 100 in the above embodiments may be referred to in the embodiments, and the description of the embodiment is omitted herein.
As can be seen from the above embodiments, the display panel and the display device provided by the present invention at least achieve the following beneficial effects:
In the display panel provided by the invention, the light adjusting layer comprises a plurality of first color resistors which are arranged corresponding to the light emitting units along the direction perpendicular to the plane of the substrate, and the first color resistors cover the light emitting units corresponding to the first color resistors. The external environment light passes through the first color resistor, the light with the same color as the first color resistor partially penetrates through the first color resistor, and the light with different colors from the first color resistor cannot penetrate through the first color resistor so as to be filtered by the first color resistor, so that the first color resistor can reduce the influence of the external environment light on the display effect of the display panel to a certain extent, thereby reducing the reflection of the external environment light entering the display panel, and when the light which enters the display panel through the first color resistor and is reflected inside is emitted towards the light emitting surface of the display panel, the light passing through the first color resistor is absorbed by the first color resistor, thereby reducing the emission of the light reflected after the external environment light enters the display panel, effectively reducing the influence of the external environment light on the display effect of the display panel, and achieving the anti-reflection effect. The light adjusting layer further comprises at least one light adjusting structure, one light adjusting structure is located between two adjacent first color resistors, the light adjusting structure and the pixel defining layer are correspondingly arranged, the light adjusting structure and the two first color resistors close to the light adjusting structure are overlapped in a direction perpendicular to the plane where the substrate is located, the refractive index of the first color resistor is larger than that of the light adjusting structure, total reflection occurs on a contact surface of the light adjusting structure and the first color resistor, large-view-angle light emitted by the light emitting unit is enabled to deflect towards the forward-looking angle direction, the brightness of the forward-looking angle light is improved, and the display effect of the display device is improved due to the fact that the human eyes observe the display panel to be in the forward-looking angle direction. According to the invention, the anti-reflection effect can be realized through the first color resistor in the light adjusting layer, and meanwhile, the large-visual angle light emitted by the light emitting unit can be adjusted through the first color resistor and the light adjusting structure, so that the display effect of the display device is improved, a plurality of layers of adjusting films are not required, and the thickness of the display panel is reduced.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (15)
1. A display panel, comprising:
A substrate base;
the display layer is positioned on one side of the substrate base plate and comprises a pixel definition layer and a plurality of light emitting units, the pixel definition layer comprises a plurality of first openings, and the light emitting units are positioned in the first openings;
The light regulation layer is located the display layer is kept away from one side of substrate base plate, the light regulation layer includes:
The first color resistors are arranged corresponding to the light-emitting units along the direction perpendicular to the plane of the substrate base plate, and the first color resistors cover the light-emitting units corresponding to the first color resistors;
at least one light ray adjusting structure, wherein one light ray adjusting structure is positioned between two adjacent first color resistors, and the light ray adjusting structure is arranged corresponding to the pixel definition layer;
The light ray adjusting structure and two first color resistances close to the light ray adjusting structure are overlapped in the direction perpendicular to the plane of the substrate, and the refractive index of the first color resistance is larger than that of the light ray adjusting structure;
The light adjusting structure is made of transparent materials.
2. The display panel of claim 1, wherein the display panel comprises,
The two first color resistances adjacent to one light ray adjusting structure are respectively a first color resistance and a second color resistance, the first color resistance and the second color resistance are arranged along a first direction, and the first direction is parallel to a plane where the substrate base plate is located;
the light-emitting units comprise first light-emitting units and second light-emitting units with different colors, wherein the first color resistance is arranged corresponding to the first light-emitting units, and the second color resistance is arranged corresponding to the second light-emitting units;
The light ray adjusting structure comprises a first side face, a second side face and a bottom face, wherein the first side face and the second side face are positioned on two sides of the light ray adjusting structure along the first direction, the first color resistor covers the first side face, and the second color resistor covers the second side face;
And the bottom surface is positioned on one side of the light ray adjusting structure close to the substrate along the direction perpendicular to the plane of the substrate.
3. The display panel of claim 2, wherein the display panel comprises,
The first side surface is a plane, and the second side surface is a plane;
the first side face and the bottom face have an included angle smaller than 90 degrees, and the second side face and the bottom face have an included angle smaller than 90 degrees.
4. The display panel of claim 2, wherein the display panel comprises,
The first side surface is an arc surface, and the first side surface protrudes towards a direction away from the second side surface;
the second side is an arc surface, and the second side protrudes towards a direction away from the first side.
5. The display panel of claim 1, wherein the display panel comprises,
The vertical projection of the light ray adjusting structure on the plane of the substrate is positioned in the vertical projection of the pixel defining layer on the plane of the substrate.
6. The display panel of claim 2, wherein the display panel comprises,
The light ray adjusting structure comprises a first surface, and the first surface is positioned at one side of the light ray adjusting structure away from the substrate along the direction perpendicular to the plane of the substrate;
The first color resistor and the second color resistor are in contact, and the vertical projection of the contact surface of the first color resistor and the second color resistor on the plane of the substrate is positioned in the vertical projection of the first surface on the plane of the substrate.
7. The display panel of claim 6, wherein the display panel comprises,
The pixel defining layer includes a light absorbing material.
8. The display panel of claim 7, wherein the display panel comprises,
The first color resistance and the second color resistance are overlapped in a direction perpendicular to the plane of the substrate;
The vertical projection of the first surface on the plane of the substrate is positioned in the vertical projection of the first color resistor on the plane of the substrate, and the vertical projection of the first surface on the plane of the substrate is positioned in the vertical projection of the second color resistor on the plane of the substrate.
9. The display panel of claim 6, wherein the display panel comprises,
The light ray adjusting layer further comprises a black matrix, and the black matrix comprises a first black matrix unit positioned between the first color resistance and the second color resistance;
The light ray adjusting structure covers the first black matrix unit along the direction perpendicular to the plane of the substrate;
The first surface is concave and is concave towards a direction approaching the first black matrix unit.
10. The display panel of claim 9, wherein the display panel comprises,
In a first section, the first surface comprises two endpoints, wherein the first section is perpendicular to a plane where the substrate base plate is located, and the first section is parallel to the first direction;
Along the first direction, the distance between the two endpoints and the first black matrix unit is d, and d is more than 0;
And along the direction perpendicular to the plane of the substrate, the distance between the two endpoints and the first black matrix unit is h, and h is more than 0.
11. The display panel of claim 10, wherein the display panel comprises,
The refractive index of the first color resistor is n1, and the refractive index of the light ray adjusting structure is n2;
the included angles between the normals at the two endpoints and the direction perpendicular to the plane of the substrate are all theta 1;
Wherein, 。
12. The display panel of claim 11, wherein the display panel comprises,
The first surface is an arc line in the first section, the radius of the arc line is R,Wherein D1 is the length of the circular arc line in the first direction.
13. The display panel of claim 11, wherein the display panel comprises,
The first surface comprises a first plane, a second plane and a third plane which are connected, and the first plane and the third plane are respectively positioned at two ends of the second plane along the first direction;
the vertical projection of the second plane on the plane of the substrate is positioned in the vertical projection of the first black matrix unit on the plane of the substrate;
the second plane is parallel to the plane of the substrate, and the included angles of the first plane, the third plane and the second plane are all theta 2, .
14. The display panel of claim 6, wherein the display panel comprises,
The light ray adjusting structure is a second color resistor, and the second color resistor comprises a third color resistor and a fourth color resistor which are arranged along the first direction;
Along the direction perpendicular to the plane of the substrate, the first color resistor covers the third color resistor, the second color resistor covers the fourth color resistor, the colors of the first color resistor and the third color resistor are the same, and the colors of the second color resistor and the fourth color resistor are the same.
15. A display device comprising the display panel of any one of claims 1-14.
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| CN117518539A (en) * | 2022-12-30 | 2024-02-06 | Tcl华星光电技术有限公司 | Liquid crystal display panel with switchable viewing angle and display device |
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