Display panel and display device
By designing multiple pixel units and scattering components in the flexible display panel, the convexes are spaced in sequence by using the deformation of the scattering elements to scatter the light emitted, the problem of yellowing caused by blue light attenuation in the bending area is solved, and brightness equalization and improved display effect are achieved.
Patent Information
- Application Number
- CN202410650053.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2044-05-23
AI Technical Summary
The blue light attenuation of the flexible display panel in the bent area causes the picture to turn yellow, affecting the display effect.
A display panel is designed, including a plurality of pixel units, each pixel unit including a first sub-pixel region, a second sub-pixel region and a third sub-pixel region, and is equipped with a light emitting component and a scattering component. The light emitting component includes a plurality of light emitting elements, and the scattering component includes a flexible layer and a scattering element spaced sequentially by deformation of the scattering element, scattering the emitted light, reducing the brightness, and achieving brightness equalization.
It effectively avoids the yellowing of the bending area, improves the overall display effect of the display panel, and ensures balanced brightness.
Smart Images

Figure CN118555879B_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device having the display panel. Background Art
[0002] Flexible display panels have the advantages of narrow bezels, bendability, and stretchability, and have broad application prospects in the fields of smart wearable displays and vehicle displays.
[0003] The light-emitting element of the flexible display panel is an organic light-emitting diode (OLED). Since the material of OLED is a high-molecular organic material, the life of OLED that emits blue light is shorter than that of OLED that emits other colors of light, which causes the blue light emitted by the flexible display panel to decay. Moreover, the flexible display panel is generally bent, and the bending area of the flexible display panel will aggravate the attenuation of blue light, causing the picture displayed by the flexible display panel in the bending area to be yellowish.
[0004] Therefore, how to solve the problem of yellowish display caused by blue light attenuation in the bending area of the flexible display panel in the prior art is an urgent problem to be solved by those skilled in the art. Summary of the invention
[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present application is to provide a display panel and a display device having the display panel, which aims to solve the problem of yellowish display image caused by blue light attenuation in the bending zone of the flexible display panel in the prior art, avoid the yellowish display image in the bending zone of the display panel, and improve the display effect of the display panel.
[0006] To solve the above technical problems, an embodiment of the present application provides a display panel, the display panel includes a plurality of pixel units, each of the pixel units includes a first sub-pixel area, a second sub-pixel area and a third sub-pixel area arranged in sequence. The display panel also includes a light-emitting component and a scattering component, the light-emitting component includes a plurality of first light-emitting elements, a plurality of second light-emitting elements and a plurality of third light-emitting elements, one of the first light-emitting elements is located in one of the first sub-pixel areas, one of the second light-emitting elements is located in one of the second sub-pixel areas, and one of the third light-emitting elements is located in one of the third sub-pixel areas. The scattering component includes a flexible layer, a plurality of first scattering elements and a plurality of second scattering elements, the flexible layer is arranged on one side of the light-emitting component, the plurality of first scattering elements and the plurality of second scattering elements are all located on the side of the flexible layer facing away from the light-emitting component, one of the first scattering elements is located in one of the first sub-pixel areas, one of the second scattering elements is located in one of the second sub-pixel areas, each of the first scattering elements includes a plurality of first protrusions adjacent to each other in sequence, and each of the second scattering elements includes a plurality of second protrusions adjacent to each other in sequence. The first scattering element is deformed so that the multiple first protrusions are spaced in sequence, and the second scattering element is deformed so that the multiple second protrusions are spaced in sequence. The multiple first protrusions spaced in sequence scatter the first color light emitted by the first light-emitting element, and the multiple second protrusions spaced in sequence scatter the second color light emitted by the second light-emitting element. The third light-emitting element emits a third color light.
[0007] In summary, the display panel provided in the embodiment of the present application scatters the first color light emitted by the first light-emitting element through the plurality of first protrusions spaced in sequence, so that the brightness of the first color light is reduced, and the plurality of second protrusions spaced in sequence scatter the second color light emitted by the second light-emitting element, so that the brightness of the second color light is reduced, and the brightness of the third color light emitted by the third light-emitting element will be attenuated. The brightness of the first color light, the second color light, and the third color light are all reduced, so that the brightness of the entire bending area is balanced, and the bending area of the display panel will not have the problem of yellowing the picture, thereby improving the overall display effect of the display panel.
[0008] In an exemplary embodiment, each of the first protrusions includes a first light emitting surface and a second light emitting surface disposed opposite to each other, and the first light emitting surface of each of the first protrusions contacts the second light emitting surface of another adjacent first protrusion. The first scattering element is deformed so that the first light emitting surface and the second light emitting surface of each of the first protrusions are exposed, and the first light emitting surface and the second light emitting surface both refract the first color light.
[0009] In an exemplary embodiment, the first scattering element is deformed so that an angle is formed between a direction in which the first light-emitting element points to the first scattering element and the first light-emitting surface, and an angle is formed between a direction in which the first light-emitting element points to the first scattering element and the second light-emitting surface.
[0010] In an exemplary embodiment, each of the second protrusions includes a third light emitting surface and a fourth light emitting surface disposed opposite to each other, and the third light emitting surface of each second protrusion contacts the fourth light emitting surface of another adjacent second protrusion. The second scattering element is deformed so that the third light emitting surface and the fourth light emitting surface of each second protrusion are exposed, and the third light emitting surface and the fourth light emitting surface both refract the second color light.
[0011] In an exemplary embodiment, the second scattering element is deformed so that an angle is formed between a direction in which the second light-emitting element points to the second scattering element and the third light-emitting surface, and so that an angle is formed between a direction in which the second light-emitting element points to the second scattering element and the fourth light-emitting surface.
[0012] In an exemplary embodiment, a plurality of first accommodating grooves and a plurality of second accommodating grooves are provided on a side of the flexible layer facing away from the light-emitting component, one first accommodating groove is located in the first sub-pixel region, one second accommodating groove is located in one second sub-pixel region, one first scattering element is disposed in one first accommodating groove, and one second scattering element is disposed in one second accommodating groove.
[0013] In an exemplary embodiment, the material of the flexible layer includes at least one of silicone rubber, nitrile rubber, silicone resin, and polydimethylsiloxane. The first scattering element and the second scattering element both include at least one of polyvinyl alcohol, polyurethane, polypropylene, and polyamide.
[0014] In an exemplary embodiment, the first scattering element partially blocks the first light emitting element, and the second scattering element partially blocks the second light emitting element.
[0015] In an exemplary embodiment, each of the pixel units further includes a fourth sub-pixel region and a fifth sub-pixel region, the fourth sub-pixel region is disposed on one side of the first sub-pixel region, and the fifth sub-pixel region is disposed on one side of the second sub-pixel region. The light-emitting component further includes a plurality of fourth light-emitting elements and a plurality of fifth light-emitting elements, one fourth light-emitting element is located in one fourth sub-pixel region, one fifth light-emitting element is located in one fifth sub-pixel region, the fourth light-emitting element emits the second color light, and the fifth light-emitting element emits the first color light.
[0016] Based on the same inventive concept, an embodiment of the present application further provides a display device, which includes a housing and the above-mentioned display panel, and the display panel is disposed in the housing.
[0017] In summary, the display device provided in the embodiment of the present application includes a housing and a display panel, wherein the display panel scatters the first color light emitted by the first light-emitting element through a plurality of first protrusions spaced in sequence, so that the brightness of the first color light is reduced, and the plurality of second protrusions spaced in sequence scatter the second color light emitted by the second light-emitting element, so that the brightness of the second color light is reduced, and the brightness of the third color light emitted by the third light-emitting element will be attenuated. The brightness of the first color light, the second color light, and the third color light are all reduced, so that the brightness of the entire bending area is balanced, and the bending area of the display panel will not have the problem of yellowing the picture, thereby improving the overall display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 A schematic diagram of the layer structure of a display device disclosed in the first embodiment of the present application;
[0020] Figure 2 A schematic diagram of a top view of the structure of a display panel disclosed in the second embodiment of the present application;
[0021] Figure 3 for Figure 2 A first structural schematic diagram of a pixel unit is shown;
[0022] Figure 4 for Figure 2 A schematic diagram of a partial layer structure of a display panel shown;
[0023] Figure 5 for Figure 4 A schematic diagram of the layer structure of the first scattering element of the scattering assembly shown;
[0024] Figure 6 for Figure 5 Schematic diagram of the enlarged structure of structure VI;
[0025] Figure 7 for Figure 4 A schematic diagram of the layer structure of the second scattering element of the scattering component is shown.
[0026] Figure 8for Figure 7 Schematic diagram of the enlarged structure of structure VIII;
[0027] Fig. 9 A schematic diagram of the structure of a bending area of a display panel disclosed in an embodiment of the present application;
[0028] Fig.10 for Fig. 9 A schematic structural diagram of a first scattering element of a display panel is shown;
[0029] Fig.11 for Fig. 9 A schematic structural diagram of a second scattering element of a display panel is shown;
[0030] Fig.12 for Figure 2 A second structural schematic diagram of a pixel unit is shown.
[0031] Description of reference numerals:
[0032] 1-display device; 10-housing; 30-display panel; 100-light emitting component; 200-scattering component;
[0033] 110-driving circuit layer; 120-first light emitting element; 130-second light emitting element; 140-third light emitting element; 150-barrier layer; 210-flexible layer; 210a-first receiving groove; 210b-second receiving groove; 220-first scattering element; 221-first substrate; 222-first protrusion; 222a-first light emitting surface; 222b-second light emitting surface; 230-second scattering element; 231-second Substrate; 232-second protrusion; 232a-third light-emitting surface; 232b-fourth light-emitting surface; 2221-first protrusion; 2222-first packaging part; 2321-second protrusion; 2322-second packaging part; AA-display area; NA-non-display area; P-pixel unit; P1-first sub-pixel area; P2-second sub-pixel area; P3-third sub-pixel area; P4-fourth sub-pixel area; P5-fifth sub-pixel area. DETAILED DESCRIPTION
[0034] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are given in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thoroughly and comprehensively understood.
[0035] The following descriptions of the embodiments are with reference to the attached diagrams to illustrate specific embodiments that the present application can be used to implement. The serial numbers for the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present application, unless otherwise specified, include direct and indirect connections (couplings). The directional terms mentioned in the present application, such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.
[0036] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be fixedly connected, detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include", "may include", "include", or "may include" used in this application indicate the existence of the corresponding functions, operations, elements, etc. disclosed, and do not limit one or more other functions, operations, elements, etc. In addition, the terms "include" or "include" indicate the existence of the corresponding features, numbers, steps, operations, elements, components, or combinations thereof disclosed in the specification, and do not exclude the existence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof, and are intended to cover non-exclusive inclusions. It should also be understood that "at least one" described herein means one or more, such as one, two or three, etc., and "plurality" means at least two, such as two or three, etc., unless otherwise clearly defined.
[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0038] See also Figure 1 , Figure 1The schematic diagram of the layer structure of the display device disclosed in the first embodiment of the present application is shown in FIG. The display device 1 can be used in electronic devices including but not limited to televisions, tablet computers, laptop computers, desktop computers, mobile phones, car displays, smart watches, smart bracelets, smart glasses, etc., and the present application does not impose specific restrictions on this.
[0039] In the embodiment of the present application, the display device 1 includes a housing 10 and a display panel 30 disposed in the housing 10, and a light emitting side of the display panel 30 is exposed from the housing 10. The display panel 30 is used to display images.
[0040] In an exemplary embodiment, the display device 1 may also include other necessary components and parts such as a drive board, a power board, a high-voltage board, and a key control board. Those skilled in the art may make corresponding supplements based on the specific type and actual functions of the display device 1, which will not be repeated here.
[0041] In some embodiments, the display device 1 may further include a processor and a memory, wherein the processor is electrically connected to the display panel 30 and is used to control the display panel 30 to display. The memory is electrically connected to the processor and is used to store program codes required for the processor to run.
[0042] In an exemplary embodiment, the memory may include a volatile memory, such as a random access memory (RAM); the memory may also include a non-volatile memory (NVM), such as a read-only memory (ROM), a flash memory (FM), a hard disk drive (HDD), or a solid-state drive (SSD). The memory may also include a combination of the above-mentioned types of memory.
[0043] In an exemplary embodiment, the processor includes one or more general-purpose processors, wherein a general-purpose processor can be any type of device capable of processing electronic instructions, including a central processing unit (CPU), a microprocessor, a microcontroller, a main processor, a controller, etc. The processor is used to execute various types of digital storage instructions, such as software or firmware programs stored in the memory, which enables the computing device to provide a wide variety of services.
[0044] See also Figure 2 , Figure 2FIG. 1 is a schematic diagram of a top view of a display panel disclosed in the second embodiment of the present application. For the convenience of description, the definition Figure 2 The length direction of the display panel 30 shown is the X-axis direction, the width direction of the display panel 30 is the Y-axis direction, and the thickness direction of the display panel 30 is the Z-axis direction, wherein the X-axis direction, the Y-axis direction and the Z-axis direction are perpendicular to each other. The display panel 30 includes a display area AA and a non-display area NA, and the non-display area NA is arranged around the display area AA. The display panel 30 also includes a plurality of pixel units P arranged in the display area AA, and the plurality of pixel units P are distributed in a plurality of rows along the X-axis direction and in a plurality of columns along the Y-axis direction, that is, the plurality of pixel units P are distributed in a plane array where the X-axis and the Y-axis are located. The number of the pixel units P is determined by the resolution of the display panel 30, and the present application does not impose any specific restrictions on this.
[0045] See also Figure 3 , Figure 3 for Figure 2 The first structural diagram of the pixel unit is shown in FIG. Each pixel unit P includes a first sub-pixel region P1, a second sub-pixel region P2 and a third sub-pixel region P3 arranged in sequence along the X-axis direction. That is, Figure 3 As shown, the second sub-pixel region P2 is arranged at one side of the first sub-pixel region P1 along the X-axis direction, and the third sub-pixel region P3 is arranged at the side of the second sub-pixel region P2 facing away from the first sub-pixel region P1, that is, in a pixel unit P, the second sub-pixel region P2 is located between the first sub-pixel region P1 and the third sub-pixel region P3. The lengths of the first sub-pixel region P1, the second sub-pixel region P2 and the third sub-pixel region P3 along the Y-axis direction are all equal. The first sub-pixel region P1, the second sub-pixel region P2 and the third sub-pixel region P3 are aligned on one side facing the Y-axis direction, and the first sub-pixel region P1, the second sub-pixel region P2 and the third sub-pixel region P3 are aligned on one side facing away from the Y-axis direction, that is, the first sub-pixel region P1, the second sub-pixel region P2 and the third sub-pixel region P3 are located on opposite sides of their respective length directions and are aligned with each other.
[0046] See also Figure 4 , Figure 4 for Figure 2Schematic diagram of a partial layer structure of a display panel shown. The display panel 30 includes a light-emitting component 100 and a scattering component 200, and the scattering component 200 is arranged on one side of the light-emitting component 100 along the Z-axis direction. Specifically, the light-emitting component 100 includes a driving circuit layer 110, a plurality of first light-emitting elements 120, a plurality of second light-emitting elements 130, a plurality of third light-emitting elements 140 and a blocking layer 150. Among them, the plurality of first light-emitting elements 120, the plurality of second light-emitting elements 130 and the plurality of third light-emitting elements 140 are all arranged at intervals on one side of the driving circuit layer 110 along the Z-axis direction. One first light-emitting element 120 is correspondingly located in one first sub-pixel area P1, one second light-emitting element 130 is correspondingly located in one second sub-pixel area P2, and one third light-emitting element 140 is correspondingly located in one third sub-pixel area P3. The blocking layer 150 is arranged on one side of the driving circuit layer 110 along the Z-axis direction, and covers the plurality of first light-emitting elements 120, the plurality of second light-emitting elements 130 and the plurality of third light-emitting elements 140, that is, the blocking layer 150 covers the plurality of first light-emitting elements 120, the plurality of second light-emitting elements 130 and the plurality of third light-emitting elements 140 to the driving circuit layer 110.
[0047] In this embodiment, the driving circuit layer 110 is electrically connected to the plurality of first light-emitting elements 120, the plurality of second light-emitting elements 130, and the plurality of third light-emitting elements 140, and the driving circuit layer 110 is used to drive the plurality of first light-emitting elements 120, the plurality of second light-emitting elements 130, and the plurality of third light-emitting elements 140 to emit light. The first light-emitting element 120 emits a first color light, the second light-emitting element 130 emits a second color light, and the third light-emitting element 140 emits a third color light. The first color light may be red light, the second color light may be green light, and the third color light may be blue light. The blocking layer 150 is used to block impurities such as air, water vapor, or dust, to prevent the first light-emitting element 120, the second light-emitting element 130, and the third light-emitting element 140 from contacting impurities such as air, water vapor, or dust, thereby protecting the first light-emitting element 120, the second light-emitting element 130, and the third light-emitting element 140.
[0048] In the embodiment of the present application, the driving circuit layer 110 can drive the plurality of the first light-emitting elements 120, the plurality of the second light-emitting elements 130, and the plurality of the third light-emitting elements 140 to emit light by passive driving (Passive Matrix, PM) or active driving (Active Matrix, AM). Wherein, passive driving means: pulse current is directly applied to the first light-emitting element 120, the second light-emitting element 130, and the third light-emitting element 140, and active driving means: the driving circuit layer 110 is equipped with a thin film transistor with switch power supply and a capacitor for storing charge for each of the first light-emitting element 120, each of the second light-emitting element 130, and each of the third light-emitting element 140.
[0049] In the embodiment of the present application, the first light-emitting element 120 , the second light-emitting element 130 , and the third light-emitting element 140 are all organic light-emitting diodes (OLED).
[0050] See also Figure 4The scattering assembly 200 includes a flexible layer 210, a plurality of first scattering elements 220, and a plurality of second scattering elements 230. The flexible layer 210 is disposed on the side of the barrier layer 150 facing away from the driving circuit layer 110. The side of the flexible layer 210 facing away from the barrier layer 150 is provided with a plurality of first receiving grooves 210a and a plurality of second receiving grooves 210b. One first receiving groove 210a is located in the first sub-pixel area P1, and one second receiving groove 210b is located in the second sub-pixel area P2. One first scattering element 220 is disposed in one first receiving groove 210a, and the first scattering element 220 is connected to the bottom wall and the side wall of the first receiving groove 210a, that is, the shape of the first scattering element 220 matches the shape of the first receiving groove 210a. A second scattering element 230 is disposed in a second containing groove 210b, and the second scattering element 230 is connected to the bottom wall and the side wall of the second containing groove 210b, that is, the shape of the second scattering element 230 matches the shape of the second containing groove 210b. The orthographic projection of a first scattering element 220 in the Z-axis direction coincides with the orthographic projection of a first light-emitting element 120 in the Z-axis direction, and the orthographic projection of a second scattering element 230 in the Z-axis direction coincides with the orthographic projection of a first light-emitting element 120 in the Z-axis direction, that is, the orthographic projection of a first scattering element 220 on the driving circuit layer 110 coincides with the orthographic projection of a first light-emitting element 120 on the driving circuit layer 110, and the orthographic projection of a second scattering element 230 on the driving circuit layer 110 coincides with the orthographic projection of a first light-emitting element 120 on the driving circuit layer 110. In the embodiment of the present application, the peripheral side of the first scattering element 220 is aligned with the peripheral side of the first light-emitting element 120 , and the peripheral side of the second scattering element 230 is aligned with the peripheral side of the second light-emitting element 130 .
[0051] It can be understood that by accommodating the first scattering element 220 in the first receiving groove 210a and accommodating the second scattering element 230 in the second receiving groove 210b, the thickness of the scattering assembly 200 can be reduced, thereby achieving a thinner display panel 30.
[0052] See also Figure 5 , Figure 5 for Figure 4Schematic diagram of the layer structure of the first scattering element of the scattering component shown. The first scattering element 220 includes a first substrate 221 and a plurality of first protrusions 222, wherein the first substrate 221 is arranged on the bottom wall of the first receiving groove 210a, and the plurality of first protrusions 222 are arranged on the side of the first substrate 221 facing away from the bottom wall of the first receiving groove 210a. The plurality of first protrusions 222 are arranged in sequence along the X-axis direction, and each of the first protrusions 222 is in contact with the adjacent first protrusions 222, that is, any two adjacent first protrusions 222 are in contact.
[0053] See also Figure 6 , Figure 6 for Figure 5 Schematic diagram of the enlarged structure of structure VI. Each of the first protrusions 222 includes a first light emitting surface 222a and a second light emitting surface 222b that are arranged opposite to each other along the X-axis direction, the first light emitting surface 222a and the second light emitting surface 222b are both parallel to the Z-axis direction, and the first light emitting surface 222a of each of the first protrusions 222 faces the X-axis direction, and the second light emitting surface 222b of each of the first protrusions 222 faces away from the X-axis direction. The first light emitting surface 222a of each of the first protrusions 222 contacts the second light emitting surface 222b of another adjacent first protrusion 222, and the second light emitting surface 222b of each of the first protrusions 222 contacts the first light emitting surface 222a of another adjacent first protrusion 222. That is, the first light emitting surface 222a and the second light emitting surface 222b of each of the first protrusions 222 are not exposed. The lengths of the plurality of first protrusions 222 along the Y-axis direction are all different, and the plurality of first protrusions 222 are aligned with the surface facing away from the first substrate 221 .
[0054] Please continue reading Figure 6Each of the first protrusions 222 includes a first protrusion 2221 and a first packaging portion 2222. The first protrusion 2221 is disposed on the side of the first substrate 221 facing away from the bottom wall of the first accommodating groove 210a. The first packaging portion 2222 is disposed on the peripheral side of the first protrusion 2221 and the side of the first protrusion 2221 facing away from the first substrate 221, that is, the first packaging portion 2222 is covered on the first protrusion 2221. The first light emitting surface 222a is the surface of the first packaging portion 2222 facing the X-axis direction, and the second light emitting surface 222b is the surface of the first packaging portion 2222 facing away from the X-axis direction. A plurality of the first protrusions 2221 are arranged in sequence along the X-axis direction, and a plurality of the first packaging portions 2222 are adjacent to each other in sequence along the X-axis direction. The first packaging portion 2222 is used to block impurities such as air, water vapor or dust, and prevent impurities such as air, water vapor or dust from entering the display panel 30. It should be noted that the above description of the first protrusion 222 , the first light emitting surface 222 a and the second light emitting surface 222 b is based on the structure in which the first scattering element 220 is not deformed.
[0055] It can be understood that the first color light emitted by the first light emitting element 120 is directed toward the first scattering element 220. Since the first protrusions 222 are adjacent to each other in sequence, the first color light passes through the first protrusions 222, and the first protrusions 222 do not change the propagation direction of the first color light.
[0056] In the embodiment of the present application, the first substrate 221 and the first protrusion 222 can be integrally formed, and the materials of the first substrate 221 and the first protrusion 222 can include at least one of polyvinyl alcohol, polyurethane, polypropylene, polyamide, etc. The material of the flexible layer 210 can include at least one of silicone rubber, nitrile rubber, silicone resin, polydimethylsiloxane, etc.
[0057] See also Figure 7 , Figure 7 for Figure 4 Schematic diagram of the layer structure of the second scattering element of the scattering assembly shown. The second scattering element 230 includes a second substrate 231 and a plurality of second protrusions 232, wherein the second substrate 231 is arranged on the bottom wall of the second receiving groove 210b, and the plurality of second protrusions 232 are arranged on the side of the second substrate 231 that is opposite to the bottom wall of the second receiving groove 210b. The plurality of second protrusions 232 are arranged in sequence along the X-axis direction, and each second protrusion 232 is in contact with the adjacent second protrusion 232, that is, any two adjacent second protrusions 232 are in contact.
[0058] See also Figure 8 , Figure 8 for Figure 7 Schematic diagram of the enlarged structure of structure VIII. Each of the second protrusions 232 includes a third light emitting surface 232a and a fourth light emitting surface 232b that are arranged opposite to each other along the X-axis direction. The third light emitting surface 232a and the fourth light emitting surface 232b are both parallel to the Z-axis direction, and the third light emitting surface 232a of each of the second protrusions 232 faces the X-axis direction, and the fourth light emitting surface 232b of each of the second protrusions 232 faces away from the X-axis direction. The third light emitting surface 232a of each of the second protrusions 232 contacts the fourth light emitting surface 232b of another adjacent second protrusion 232, and the fourth light emitting surface 232b of each of the second protrusions 232 contacts the third light emitting surface 232a of another adjacent second protrusion 232. That is, the third light emitting surface 232a and the fourth light emitting surface 232b of each of the second protrusions 232 are not exposed. The lengths of the first protrusions 222 along the Y-axis direction are different, and the second protrusions 232 are aligned with the surface facing away from the second base 231 .
[0059] Please continue reading Figure 8 Each of the second protrusions 232 includes a second protrusion 2321 and a second packaging portion 2322. The second protrusion 2321 is arranged on the side of the second base 231 facing away from the bottom wall of the second accommodating groove 210b. The second packaging portion 2322 is arranged on the peripheral side of the second protrusion 2321 and the side of the second protrusion 2321 facing away from the second base 231, that is, the second packaging portion 2322 is covered to the second protrusion 2321. The third light-emitting surface 232a is the surface of the second packaging portion 2322 facing the X-axis direction, and the fourth light-emitting surface 232b is the surface of the second packaging portion 2322 facing away from the X-axis direction. A plurality of the second protrusions 2321 are arranged in sequence along the X-axis direction, and a plurality of the second packaging portions 2322 are adjacent to each other in sequence along the X-axis direction. The second packaging portion 2322 is used to block impurities such as air, water vapor or dust, and prevent impurities such as air, water vapor or dust from entering the display panel 30. It should be noted that the above description of the second protrusion 232 , the third light emitting surface 232 a and the fourth light emitting surface 232 b is based on the structure in which the second scattering element 230 is not deformed.
[0060] It can be understood that the second color light emitted by the second light emitting element 130 is directed toward the second scattering element 230. Since the plurality of second protrusions 232 are connected in sequence, the second color light passes through the plurality of second protrusions 232, and the plurality of second protrusions 232 will not change the propagation direction of the second color light.
[0061] In the embodiment of the present application, the second substrate 231 and the plurality of second protrusions 232 may be integrally formed, and the material of the second substrate 231 and the second protrusions 232 may include at least one of polyvinyl alcohol, polyurethane, polypropylene, polyamide and the like.
[0062] See also Fig. 9 and Fig.10 , Fig. 9 is a schematic structural diagram of a bending area of a display panel disclosed in an embodiment of the present application, Fig.10 for Fig. 9 The structure diagram of the first scattering element of the display panel shown in the figure. After the display panel 30 is bent, the display panel 30 forms a bending area, and the flexible layer 210 and the first scattering element 220 located in the bending area are deformed accordingly. The deformation of the first scattering element 220 makes the plurality of first protrusions 222 spaced in sequence, and the first light emitting surface 222a and the second light emitting surface 222b of each first protrusion 222 are exposed. The first color light emitted by the first light emitting element 120 is emitted to the first light emitting surface 222a and the second light emitting surface 222b of each first protrusion 222, and the first light emitting surface 222a and the second light emitting surface 222b both refract the first color light, so that the first color light is scattered, thereby reducing the brightness of the first color light emitted by the first sub-pixel area P1. Moreover, the greater the bending degree of the display panel 30, the greater the deformation degree of the first scattering element 220, the greater the interval between two adjacent first protrusions 222, and the more the brightness of the first color light is reduced.
[0063] In the embodiment of the present application, after the first scattering element 220 is deformed, an angle is formed between the direction in which the first light-emitting element 120 points to the first scattering element 220 and the first light-emitting surface 222a, that is, the normal line of the first light-emitting surface 222a is not perpendicular to the direction in which the first light-emitting element 120 points to the first scattering element 220, so that the first light-emitting surface 222a receives more of the first color light and refracts more of the first color light, thereby improving the ability of the first protrusion 222 to scatter the first color light. After the first scattering element 220 is deformed, an angle is formed between the direction in which the first light-emitting element 120 points to the first scattering element 220 and the second light-emitting surface 222b, that is, the normal line of the second light-emitting surface 222b is not perpendicular to the direction in which the first light-emitting element 120 points to the first scattering element 220, so that the second light-emitting surface 222b receives more of the first color light and refracts more of the first color light, thereby improving the ability of the first protrusion 222 to scatter the first color light.
[0064] See also Fig.11 , Fig.11for Fig. 9 The structure diagram of the second scattering element of the display panel shown in the figure. When the display panel 30 is deformed, the display panel 30 forms a bending area, and the second scattering element 230 located in the bending area is also deformed accordingly. The deformation of the second scattering element 230 makes the plurality of second protrusions 232 spaced in sequence, and the third light emitting surface 232a and the fourth light emitting surface 232b of each second protrusion 232 are exposed. The second color light emitted by the second light emitting element 130 is emitted to the third light emitting surface 232a and the fourth light emitting surface 232b of each second protrusion 232, and the third light emitting surface 232a and the fourth light emitting surface 232b both refract the second color light, so that the second color light is scattered, thereby reducing the brightness of the second color light emitted by the second sub-pixel area P2. Moreover, the greater the bending degree of the display panel 30, the greater the deformation degree of the second scattering element 230, the greater the interval between two adjacent second protrusions 232, and the more the brightness of the second color light is reduced.
[0065] In the embodiment of the present application, after the second scattering element 230 is deformed, an angle is formed between the direction in which the second light emitting element 130 points to the second scattering element 230 and the third light emitting surface 232a, that is, the normal of the third light emitting surface 232a is not perpendicular to the direction in which the second light emitting element 130 points to the second scattering element 230, so that the third light emitting surface 232a receives more of the second color light and refracts more of the second color light, thereby improving the ability of the second protrusion 232 to scatter the second color light. After the second scattering element 230 is deformed, an angle is formed between the direction in which the second light emitting element 130 points to the second scattering element 230 and the fourth light emitting surface 232b, that is, the normal of the fourth light emitting surface 232b is not perpendicular to the direction in which the second light emitting element 130 points to the second scattering element 230, so that the fourth light emitting surface 232b receives more of the second color light and refracts more of the second color light, thereby improving the ability of the second protrusion 232 to scatter the second color light.
[0066] It is understandable that the brightness of the third color light emitted by the third light-emitting element 140 located in the bending zone will decay, and the first color light emitted by the first light-emitting element 120 is scattered by the first scattering element 220 located in the bending zone, and the second color light emitted by the second light-emitting element 130 is scattered by the second scattering element 230 located in the bending zone, so that the brightness of the first color light is also decayed and the brightness of the second color light is also decayed, so that the brightness of the first color light, the second color light and the third color light in the bending zone are all decayed, so that the brightness of the entire bending zone is balanced, and the picture displayed in the bending zone is avoided from being yellowish. It is understandable that the brightness of the first color light emitted by the first light-emitting element 120 located in the bending zone, the brightness of the second color light emitted by the second light-emitting element 130 located in the bending zone, and the brightness of the third color light emitted by the third light-emitting element 140 located in the bending zone can be increased to avoid the brightness of the first color light, the second color light and the third color light in the bending zone from being reduced due to the attenuation of the brightness.
[0067] It should be noted that the material of the first protrusion 222 is mainly a hard polymer material, so that the first protrusion 222 undergoes plastic deformation, and the material of the second protrusion 232 is mainly a hard polymer material, so that the second protrusion 232 undergoes plastic deformation. The material of the flexible layer 210 is mainly a soft polymer material, so that the flexible layer 210 undergoes elastic deformation. After the external force that drives the display panel 30 to deform is removed, the flexible layer 210 recovers under the action of its own elastic force, and helps the first scattering element 220 and the second scattering element 230 to recover, so as to avoid the first scattering element 220 and the second scattering element 230 being unable to recover and affecting the display effect.
[0068] It should also be noted that after the first scattering element 220 is deformed, multiple first protrusions 222 are spaced in sequence, and after the second scattering element 230 is deformed, multiple second protrusions 232 are spaced in sequence, which extends the path for water vapor to enter the display panel 30 from the side of the display panel 30, enhances the effect of blocking water vapor and enhances the packaging effect of the display panel 30.
[0069] In other embodiments, the first scattering element 220 is not deformed, and the first scattering element 220 partially blocks the first light-emitting element 120, that is, the orthographic projection of the first scattering element 220 in the Z-axis direction coincides with the orthographic projection of part of the first light-emitting element 120 in the Z-axis direction, so that the first scattering element 220 does not scatter all the first color light emitted by the first light-emitting element 120, thereby avoiding excessive reduction of the brightness of the first color light. For example, the first scattering element 220 may include a plurality of first scatterers, and the plurality of first scatterers are arranged in sequence at intervals. For another example, the first scattering element 220 blocks the periphery of the first light-emitting element 120, and the first scattering element 220 does not block the middle part of the first light-emitting element 120.
[0070] In other embodiments, the second scattering element 230 is not deformed, and the second scattering element 230 partially blocks the second light-emitting element 130, that is, the orthographic projection of the second scattering element 230 in the Z-axis direction coincides with the orthographic projection of part of the second light-emitting element 130 in the Z-axis direction, so that the second scattering element 230 does not scatter all the second color light emitted by the second light-emitting element 130, thereby avoiding excessive reduction of the brightness of the second color light. For example, the second scattering element 230 may include a plurality of second scatterers, and the plurality of second scatterers are arranged in sequence at intervals. For another example, the second scattering element 230 blocks the periphery of the second light-emitting element 130, and the second scattering element 230 does not block the middle part of the second light-emitting element 130.
[0071] See also Fig.12 , Fig.12 for Figure 2 The second structural schematic diagram of the pixel unit shown in FIG. The difference between the second structure of the pixel unit P and the first structure of the pixel unit P is that the pixel unit P also includes a fourth sub-pixel area P4 and a fifth sub-pixel area P5. Specifically, the fourth sub-pixel area P4 is arranged on one side of the first sub-pixel area P1 along the Y-axis direction, that is, the fourth sub-pixel area P4 and the first sub-pixel area P1 are stacked along the Y-axis direction. The fifth sub-pixel area P5 is arranged on one side of the second sub-pixel area P2 along the Y-axis direction, that is, the fifth sub-pixel area P5 and the second sub-pixel area P2 are stacked along the Y-axis direction. The sum of the lengths of the first sub-pixel area P1 and the fourth sub-pixel area P4 along the Y-axis direction is equal to the sum of the lengths of the second sub-pixel area P2 and the fifth sub-pixel area P5 along the Y-axis direction. The first sub-pixel region P1, the second sub-pixel region P2 and the third sub-pixel region P3 are all aligned on the side facing away from the Y-axis direction, and the fourth sub-pixel region P4, the fifth sub-pixel region P5 and the third sub-pixel region P3 are all aligned on the side facing the Y-axis direction.
[0072] Correspondingly, the light emitting assembly 100 further includes a plurality of fourth light emitting elements (not shown) and a plurality of fifth light emitting elements (not shown), the plurality of fourth light emitting elements are arranged on one side of the driving circuit layer 110 along the Z-axis direction, and the plurality of fifth light emitting elements are arranged on one side of the driving circuit layer 110 along the Z-axis direction, and the barrier layer 150 covers the plurality of fourth light emitting elements and the plurality of fifth light emitting elements. One fourth light emitting element is located in one fourth sub-pixel region P4, and one fifth light emitting element is located in one fifth sub-pixel region P5. The fourth light emitting element is used to emit the second color light, and the fifth light emitting element is used to emit the first color light.
[0073] It can be understood that after the first scattering element 220 reduces the brightness of the first color light emitted by the first light-emitting element 120, the first color light is emitted through the fifth light-emitting element, which can avoid excessively reducing the brightness of the first color light, so that the display panel 30 can display normally. After the second scattering element 230 reduces the brightness of the second color light emitted by the second light-emitting element 130, the second color light is emitted through the fourth light-emitting element, which can avoid excessively reducing the brightness of the second color light, so that the display panel 30 can display normally.
[0074] The manufacturing process of the first scattering element 220 provided in the embodiment of the present application is as follows: after the flexible layer 210 is stretched, the first scattering element 220 is manufactured on the stretched flexible layer 210, and the first protrusions 222 of the first scattering element 220 are spaced in sequence. Therefore, after the display panel 30 is bent, the deformation of the first scattering element 220 will definitely cause the first protrusions 222 to be spaced in sequence. If the first scattering element 220 is directly formed on the unstretched flexible layer 210, the first protrusions 222 of the first scattering element 220 are adjacent in sequence, and the deformation of the first scattering element 220 may cause the first scattering element 220 to crack and be damaged.
[0075] The manufacturing process of the second scattering element 230 provided in the embodiment of the present application is as follows: after the flexible layer 210 is stretched, the second scattering element 230 is manufactured on the stretched flexible layer 210, and the plurality of second protrusions 232 of the second scattering element 230 are spaced in sequence. Therefore, after the display panel 30 is bent, the deformation of the second scattering element 230 will definitely cause the plurality of second protrusions 232 to be spaced in sequence. If the second scattering element 230 is directly formed on the unstretched flexible layer 210, the plurality of second protrusions 232 of the second scattering element 230 will be adjacent in sequence, and the deformation of the second scattering element 230 may cause the second scattering element 230 to crack and be damaged.
[0076] In summary, the display device 1 provided in the embodiment of the present application includes a display panel 30, and the display panel 30 includes a first sub-pixel area P1, a second sub-pixel area P2, and a third sub-pixel area P3 arranged in sequence along the X-axis direction. The display panel 30 also includes a light-emitting component 100 and a scattering component 200, and the light-emitting component 100 includes a plurality of first light-emitting elements 120, a plurality of second light-emitting elements 130, and a plurality of third light-emitting elements 140, one of the first light-emitting elements 120 is located in one of the first sub-pixel areas P1, one of the second light-emitting elements 130 is located in one of the second sub-pixel areas P2, and one of the third light-emitting elements 140 is located in one of the third sub-pixel areas P3. The scattering component 200 includes a flexible layer 210, a plurality of first scattering elements 220 and a plurality of second scattering elements 230. The flexible layer 210 is disposed on one side of the light emitting component 100. The plurality of first scattering elements 220 and the plurality of second scattering elements 230 are both located on the side of the flexible layer 210 facing away from the light emitting component 100. One first scattering element 220 is located in one first sub-pixel region P1, and one second scattering element is located in one second sub-pixel region P2. The first scattering element 220 includes a plurality of first protrusions 222 adjacent to each other in sequence, and the second scattering element 230 includes a plurality of second protrusions 232 adjacent to each other in sequence. The first scattering element 220 is deformed so that the plurality of first protrusions 222 are spaced apart in sequence, and the second scattering element 230 is deformed so that the plurality of second protrusions 232 are spaced apart in sequence. The plurality of first protrusions 222 spaced apart in sequence scatter the first color light emitted by the first light emitting component 120, and the plurality of second protrusions 232 spaced apart in sequence scatter the second color light emitted by the second light emitting component 130. The third light emitting component 140 emits a third color light. Therefore, the first protrusions 222 spaced in sequence scatter the first color light emitted by the first light-emitting element 120, so that the brightness of the first color light is reduced, and the second protrusions 232 spaced in sequence scatter the second color light emitted by the second light-emitting element 130, so that the brightness of the second color light is reduced, and the brightness of the third color light emitted by the third light-emitting element will be attenuated. The brightness of the first color light, the second color light, and the third color light are all reduced, so that the brightness of the entire bending area is balanced, and the bending area of the display panel 30 will not have the problem of yellowing the picture, thereby improving the overall display effect of the display panel 30.
[0077] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0078] It should be understood that the application of this application is not limited to the above examples. For ordinary technicians in this field, they can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application. Ordinary technicians in this field can understand that all or part of the processes of the above embodiments are implemented, and equivalent changes made according to the claims of this application still fall within the scope covered by this application.
Claims
1. A display panel, comprising a plurality of pixel units, each of the pixel units comprising a first sub-pixel region, a second sub-pixel region and a third sub-pixel region arranged in sequence, characterized in that: The display panel further includes: A light-emitting component, the light-emitting component comprising a plurality of first light-emitting elements, a plurality of second light-emitting elements and a plurality of third light-emitting elements, one of the first light-emitting elements being located in one of the first sub-pixel regions, one of the second light-emitting elements being located in one of the second sub-pixel regions, and one of the third light-emitting elements being located in one of the third sub-pixel regions; A scattering component, the scattering component comprising a flexible layer, a plurality of first scattering elements and a plurality of second scattering elements, the flexible layer being arranged on one side of the light-emitting component, the plurality of first scattering elements and the plurality of second scattering elements being arranged on the side of the flexible layer facing away from the light-emitting component, one first scattering element being arranged in a first sub-pixel region, one second scattering element being arranged in a second sub-pixel region, each of the first scattering elements comprising a plurality of first protrusions, each of the first protrusions comprising a first light-emitting surface and a second light-emitting surface arranged opposite to each other, the first light-emitting surface of each of the first protrusions being in contact with the second light-emitting surface of another adjacent first protrusion, each of the second scattering elements comprising a plurality of second protrusions, each of the second protrusions comprising a third light-emitting surface and a fourth light-emitting surface arranged opposite to each other, the third light-emitting surface of each of the second protrusions being in contact with the fourth light-emitting surface of another adjacent second protrusion; Among them, the first scattering element is deformed so that multiple first protrusions are spaced apart, the first light emitting surface and the second light emitting surface of each first protrusion are exposed, and the first light emitting surface and the second light emitting surface both refract the first color light emitted by the first light-emitting element; the second scattering element is deformed so that multiple second protrusions are spaced apart, the second scattering element is deformed so that the third light emitting surface and the fourth light emitting surface of each second protrusion are exposed, the third light emitting surface and the fourth light emitting surface both refract the second color light emitted by the second light-emitting element, and the third light-emitting element emits third color light.
2. The display panel according to claim 1, wherein: The first scattering element is deformed so that an angle is formed between the direction in which the first light-emitting element points to the first scattering element and the first light-emitting surface, and an angle is formed between the direction in which the first light-emitting element points to the first scattering element and the second light-emitting surface.
3. The display panel according to claim 1, wherein: The second scattering element is deformed so that an angle is formed between a direction in which the second light-emitting element points to the second scattering element and the third light-emitting surface, and an angle is formed between a direction in which the second light-emitting element points to the second scattering element and the fourth light-emitting surface.
4. The display panel according to any one of claims 1 to 3, characterized in that: A plurality of first accommodating grooves and a plurality of second accommodating grooves are provided on a side of the flexible layer facing away from the light-emitting component, one of the first accommodating grooves is located in the first sub-pixel region, one of the second accommodating grooves is located in the second sub-pixel region, one of the first scattering elements is arranged in one of the first accommodating grooves, and one of the second scattering elements is arranged in one of the second accommodating grooves.
5. The display panel according to any one of claims 1 to 3, characterized in that: The material of the flexible layer includes at least one of silicone rubber, nitrile rubber, silicone resin, and polydimethylsiloxane materials, and the first scattering element and the second scattering element both include at least one of polyvinyl alcohol, polyurethane, polypropylene, and polyamide materials.
6. The display panel according to any one of claims 1 to 3, characterized in that: The first scattering element partially blocks the first light-emitting element, and the second scattering element partially blocks the second light-emitting element.
7. The display panel according to any one of claims 1 to 3, characterized in that: Each of the pixel units further includes a fourth sub-pixel region and a fifth sub-pixel region, wherein the fourth sub-pixel region is disposed on one side of the first sub-pixel region, and the fifth sub-pixel region is disposed on one side of the second sub-pixel region; The light-emitting component also includes multiple fourth light-emitting elements and multiple fifth light-emitting elements, one of the fourth light-emitting elements is located in one of the fourth sub-pixel areas, one of the fifth light-emitting elements is located in one of the fifth sub-pixel areas, the fourth light-emitting element emits the second color light, and the fifth light-emitting element emits the first color light.
8. A display device, characterized in that: It comprises a shell and a display panel as described in any one of claims 1 to 7, wherein the display panel is arranged in the shell.
Citation Information
Patent Citations
Display panel, manufacturing method thereof and display device
CN115207252A
Flexible display panel and display equipment
CN116887627A