Display panel, display device and vehicle

Abstract

The invention discloses a display panel, a display device and a vehicle. The display panel comprises a substrate, a pixel definition layer, a light-emitting layer and a decoration layer. The pixel defining layer is located on one side of the substrate and comprises a pixel limiting part, and the pixel limiting part is enclosed to form a pixel opening. The light-emitting layer comprises a plurality of light-emitting units located in pixel openings, the pixel openings are used for solving the problem of light-emitting crosstalk between the light-emitting units of different colors, and the light-emitting units are used for achieving the display function of the display panel. The decorative layer is located on the side, away from the substrate, of the light-emitting layer and comprises a pattern part with decorative patterns and a polaroid, the pattern part is provided with texture patterns to decorate the screen body, and fusion of the screen body and the environment is achieved. The pattern part is enclosed to form a first opening, the polaroid is located at the first opening, the polaroid is used for reducing the reflectivity of the display panel so as to reduce glare, the pattern part and the polaroid are arranged on the same layer, the stack thickness of the display panel is reduced, the transmittance of the display panel is improved, and the display effect of the display panel is improved.

Description

Technical Field

[0001] The present application relates to the field of display, and in particular to a display panel, a display device and a vehicle. Background Art

[0002] The topic of integrating digital functions into automotive interior materials has attracted more and more attention. In the existing technology, translucent surface materials are integrated into the vehicle screen, integrating lighting, sensing, touch and other functions to create a smart surface. The vehicle display screen becomes a decorative surface with a sense of design, combining decoration and functionality. The display or control function will only be displayed on the screen through backlight or display activation when needed.

[0003] Currently, the surface thickness of vehicle-mounted display screens is relatively thick, and the transmittance of the area corresponding to the surface pattern is low. As the brightness of the display screen increases, the corresponding lifespan will decrease. Summary of the invention

[0004] Embodiments of the present application provide a display panel, a display device, and a vehicle, aiming to improve the transmittance of the display panel.

[0005] An embodiment of the first aspect of the present application provides a display panel, which includes a substrate; a pixel definition layer located on one side of the substrate and including a pixel defining portion, the pixel defining portion encloses a pixel opening; a light-emitting layer including a plurality of light-emitting units located at the pixel opening; a decorative layer located on the side of the light-emitting layer away from the substrate, the decorative layer including a polarizer and a pattern portion with a decorative pattern, the pattern portion encloses a first opening, and the polarizer is located at the first opening.

[0006] According to an implementation of the first aspect of the present application, the orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection of the polarizer on the substrate.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the first opening on the substrate is located within the orthographic projection of the pixel opening on the substrate.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, the polarizer includes a polarizer and a wave plate.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, it also includes an optical adjustment layer, which is located on the side of the light-emitting layer away from the substrate, and the optical adjustment layer includes a light-transmitting portion and a functional portion, the functional portion is enclosed to form a second opening, and the light-transmitting portion is located in the second opening, wherein the functional portion is used to chemically react with the pattern portion when the light-emitting unit emits light, thereby changing the transmittance of the pattern portion.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the pattern portion includes a first state and a second state. When the light-emitting unit emits light, the pattern portion is in the first state, and when the light-emitting unit does not emit light, the pattern portion is in the second state, wherein the transmittance of the pattern portion in the first state is greater than the transmittance of the pattern portion in the second state.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the light-transmitting portion includes polyimide.

[0012] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the functional part includes polyethylene terephthalate, polymethyl methacrylate, and acrylonitrile-butadiene-styrene copolymer.

[0013] According to any of the aforementioned implementations of the first aspect of the present application, the optical adjustment layer is located on a side of the decoration layer close to the substrate.

[0014] According to any of the aforementioned embodiments of the first aspect of the present application, the orthographic projection of the light-emitting unit on the substrate is located within the orthographic projection of the light-transmitting portion on the substrate.

[0015] According to any of the aforementioned embodiments of the first aspect of the present application, the method further includes a protective layer, which is located on the side of the decorative layer facing away from the substrate, and the protective layer is provided with a protrusion facing away from the substrate.

[0016] According to any of the aforementioned embodiments of the first aspect of the present application, the material of the protective layer includes acrylic.

[0017] According to any of the aforementioned embodiments of the first aspect of the present application, the protrusion includes a top surface facing away from the substrate, and the top surface is a part of a spherical surface.

[0018] An embodiment of a second aspect of the present application provides a display device, comprising a display panel according to any one of the above embodiments.

[0019] An embodiment of the third aspect of the present application provides a vehicle, comprising a display device according to any of the above-mentioned embodiments.

[0020] In the display panel provided in the embodiment of the present application, the display panel includes a substrate, a pixel definition layer, a light-emitting layer and a decorative layer. The pixel definition layer is located on one side of the substrate and includes a pixel definition portion, and the pixel definition portion encloses a pixel opening. The light-emitting layer includes a plurality of light-emitting units located at the pixel opening, and the pixel opening is used to improve the problem of light crosstalk between light-emitting units of different colors, and the light-emitting unit is used to realize the display function of the display panel. The decorative layer is located on the side of the light-emitting layer away from the substrate, and the decorative layer includes a pattern portion with a decorative pattern and a polarizer. The pattern portion has a texture pattern to decorate the screen body, and at the same time reduce the reflectivity of the screen body to achieve the integration of the screen body and the environment. The pattern portion encloses a first opening, and the first opening is used to set a polarizer, and the polarizer is used to reduce the reflectivity of the display panel, thereby reducing glare, and the pattern portion and the polarizer are arranged in the same layer. In the embodiment of the present application, by setting the pattern portion and the polarizer in the same layer, the polarizer is located at the first opening enclosed by the pattern portion, and the thickness of the stacked layers of the display panel is reduced while reducing the area of ​​the polarizer, thereby improving the transmittance of the display panel and improving the display effect of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features and the accompanying drawings are not drawn to scale.

[0022] Figure 1 is a schematic top view of a display panel provided according to an embodiment of the present application;

[0023] Figure 2 yes Figure 1 One of the cross-sectional views at AA in the middle;

[0024] Figure 3 yes Figure 1 The second cross-sectional view at AA in the middle.

[0025] Description of reference numerals:

[0026] 10. Display panel;

[0027] 100. Substrate;

[0028] 200, pixel definition layer; 210, pixel definition portion; 220, pixel opening;

[0029] 300, light-emitting layer; 310, light-emitting unit;

[0030] 400, decorative layer; 410, pattern portion; 420, first opening; 430, polarizer;

[0031] 500, optical adjustment layer; 510, light-transmitting portion; 520, second opening; 530, functional portion;

[0032] 600, protective layer; 610, protrusion; 620, top surface. DETAILED DESCRIPTION

[0033] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0035] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or another region, it may mean that it is directly on the other layer or another region, or that other layers or regions are included between it and the other layer or another region. Moreover, if the component is turned over, the layer or a region will be "below" or "beneath" another layer or another region.

[0036] The interior surface of the vehicle has gradually become a decorative skin with a sense of design. The decorative skin combines decoration and functionality. The display or control function will only be presented through backlight or display activation when needed. In the prior art, decorative skin materials are usually pasted on the vehicle-mounted screen to achieve integration with the environment. However, since the polarizer and the skin material are not fully transparent film materials, the screen transmittance is low, resulting in too low screen brightness. And because the decorative skin is thick after being attached, the thickness of the decorative skin is relatively thick. Therefore, in the prior art, there is a problem of thickening the overall module thickness and low display screen transmittance.

[0037] In order to solve the above problems, embodiments of the present application provide a display panel, a display device and a vehicle. Embodiments of the display panel and the display device will be described below in conjunction with the accompanying drawings.

[0038] An embodiment of the present application provides a display panel, which may be an organic light emitting diode (OLED) display panel.

[0039] See also Figure 1 to Figure 2 , Figure 1 is a schematic top view of a display panel 10 provided according to an embodiment of the present application. Figure 2 yes Figure 1 One of the cross-sectional views at AA in the middle, Figure 3 yes Figure 1 The second cross-sectional view at AA in the middle.

[0040] like Figure 1 and Figure 2 As shown, the display panel 10 provided by the embodiment of the first aspect of the present application includes a substrate 100, a pixel definition layer 200, a light-emitting layer 300 and a decorative layer 400. The pixel definition layer 200 is located on one side of the substrate 100 and includes a pixel definition portion 210, and the pixel definition portion 210 encloses a pixel opening 220. The light-emitting layer 300 includes a plurality of light-emitting units 310 located at the pixel opening 220. The decorative layer 400 is located on the side of the light-emitting layer 300 away from the substrate 100, and the decorative layer 400 includes a polarizer 430 and a pattern portion 410 with a decorative pattern, and the pattern portion 410 encloses a first opening 420, and the polarizer 430 is located at the first opening 420.

[0041] In the display panel 10 provided in the embodiment of the present application, the display panel 10 includes a substrate 100, a pixel definition layer 200, a light-emitting layer 300 and a decorative layer 400. The pixel definition layer 200 is located on one side of the substrate 100 and includes a pixel definition portion 210, and the pixel definition portion 210 encloses a pixel opening 220. The light-emitting layer 300 includes a plurality of light-emitting units 310 located at the pixel opening 220, and the pixel opening 220 is used to improve the problem of light crosstalk between light-emitting units 310 of different colors, and the light-emitting unit 310 is used to realize the display function of the display panel 10. The decorative layer 400 is located on the side of the light-emitting layer 300 away from the substrate 100, and the decorative layer 400 includes a pattern portion 410 and a polarizer 430. The pattern portion 410 has a texture pattern to decorate the screen body, while reducing the reflectivity of the screen body, and realizing the integration of the screen body with the environment. The polarizer 430 is used to reduce the reflectivity of the display panel 10 and thus reduce glare. The pattern portion 410 encloses a first opening 420, and the first opening 420 is used to set the polarizer 430, that is, the pattern portion 410 and the polarizer 430 are arranged in the same layer. In the embodiment of the present application, by arranging the pattern portion 410 and the polarizer 430 in the same layer, the polarizer 430 is located in the first opening 420 enclosed by the pattern portion 410, and the thickness of the stacked layers of the display panel 10 is reduced while reducing the area of ​​the polarizer 430, thereby improving the transmittance of the display panel 10 and enhancing the display effect of the display panel 10.

[0042] In some optional embodiments, the orthographic projection of the light emitting unit 310 on the substrate 100 is located within the orthographic projection of the polarizer 430 on the substrate 100 .

[0043] In these optional embodiments, the orthographic projection of the light emitting unit 310 on the substrate 100 is located within the orthographic projection of the polarizer 430 on the substrate 100, so that as much light emitted by the light emitting unit 310 as possible can be filtered by the polarizer 430, thereby ensuring color purity.

[0044] Optionally, the polarizer 430 includes a polarizer and a wave plate. The polarizer can selectively pass specific polarized light, and can filter the light emitted by the light emitting unit 310 to improve the color purity of the display panel 10. The wave plate is also called a phase difference film, which can reduce the reflectivity of the screen and increase the transmittance.

[0045] In some optional embodiments, the side of the decoration layer 400 close to the substrate 100 also includes an optical adjustment layer 500, the optical adjustment layer 500 includes a light-transmitting portion 510 and a functional portion 530, the functional portion 530 encloses a second opening 520, and the light-transmitting portion 510 is located in the second opening 520, wherein the functional portion 530 is used to chemically react with the pattern portion 410 when the light-emitting unit 310 emits light, thereby increasing the transmittance of the pattern portion 410.

[0046] In these optional embodiments, the optical adjustment layer 500 includes a light-transmitting portion 510 corresponding to the pattern portion 410 and a light-transmitting portion 530 respectively corresponding to the polarizer 430, and the functional portion 530 encloses a second opening 520, and the light-transmitting portion 510 is located in the second opening 520. The light-transmitting portion 510 and the functional portion 530 are arranged in the same layer, which can further reduce the stacking thickness of the display panel 10 and increase the screen transmittance. When the light-emitting unit 310 emits light, the functional portion 530 can react chemically with the pattern portion 410, thereby increasing the transmittance of the pattern portion 410, allowing light to pass through the pattern portion 410, increasing the brightness of the screen, and improving the display effect of the display panel 10.

[0047] In some optional embodiments, the pattern portion 410 includes a first state and a second state. When the light-emitting unit 310 emits light, the pattern portion 410 is in the first state, and when the light-emitting unit 310 does not emit light, the pattern portion 410 is in the second state, wherein the transmittance of the pattern portion 410 in the first state is greater than the transmittance of the pattern portion 410 in the second state.

[0048] In these optional embodiments, the light transmittance of the pattern portion 410 in the first state is greater than the light transmittance of the pattern portion 410 in the second state. When the light-emitting unit 310 emits light and the screen displays content, the pattern portion 410 is in the first state. At this time, the functional portion 530 and the pattern portion 410 undergo a chemical reaction, so that the light transmittance of the pattern portion 410 is higher, and the light emitted by the light-emitting unit 310 can be emitted as much as possible through the pattern portion 410, thereby realizing the display function of the display panel 10. When the light-emitting unit 310 does not emit light, the screen is in an off-screen state, and the pattern portion 410 is in the second state. At this time, the pattern portion 410 returns to its original state, the light transmittance is lower, the display panel 10 does not emit light and presents the texture pattern of the pattern portion 410, thereby realizing the integration of the screen and the environment.

[0049] Optionally, the functional portion 530 may be transparent so that light can pass through the functional portion 530 , thereby improving the transmittance of the screen.

[0050] Optionally, when the light-emitting unit 310 emits light and the screen displays content, the pattern portion 410 can chemically react with the transparent functional portion 530 to make the pattern portion 410 transparent, and as much light as possible from the light-emitting unit 310 can be emitted through the pattern portion 410 to realize the display function of the display panel 10.

[0051] Optionally, the material of the light-transmitting portion 510 includes polyimide, which has high light transmittance, low cost, and is easy to manufacture.

[0052] Optionally, the material of the functional portion 530 includes polyethylene terephthalate, polymethyl methacrylate, and acrylonitrile-butadiene-styrene copolymer. The above materials have high light transmittance, which can improve the transmittance of the display panel 10 .

[0053] In some optional embodiments, the optical adjustment layer 500 is located on a side of the decoration layer 400 close to the substrate 100 .

[0054] In these optional embodiments, Figure 2 As shown, the optical adjustment layer 500 may be located on a side of the decoration layer 400 close to the substrate 100 . The optical adjustment layer 500 may provide protection for the decoration layer 400 and improve the service life of the display panel 10 .

[0055] Optional, such as Figure 3 As shown, since the functional part 530 is transparent, the optical adjustment layer 500 can also be located on the side of the decorative layer 400 away from the substrate 100. When the light-emitting unit 310 does not emit light, the functional part 530 will not block the pattern part 410, so that the display panel 10 can present the texture pattern of the pattern part 410. The setting position of the optical adjustment layer 500 is not limited, and the setting position is determined according to the specific process flow.

[0056] In some optional embodiments, the orthographic projection of the light emitting unit 310 on the substrate 100 is located within the orthographic projection of the light transmitting portion 510 on the substrate 100 .

[0057] In these optional embodiments, the orthographic projection of the light-emitting unit 310 on the substrate 100 is located within the orthographic projection of the light-transmitting portion 510 on the substrate 100, so that as much light as possible emitted by the light-emitting unit 310 can be emitted through the light-transmitting portion 510, thereby increasing the transmittance of the display panel 10 and increasing the brightness of the display panel 10.

[0058] In some optional embodiments, the display panel 10 further includes a protection layer 600 , which is located on a side of the decoration layer 400 facing away from the substrate 100 , and a protrusion 610 is disposed on the protection layer 600 facing away from the substrate 100 .

[0059] In these optional embodiments, the protective layer 600 can provide protection for the display panel 10 and enhance the surface strength of the screen. The protrusions 610 can increase the surface roughness of the protective layer 600 and reduce the reflection of light. When the screen is not luminous, the user can clearly see the pattern image, and when the screen is luminous, the user can clearly see the display content on the screen.

[0060] Optionally, the material of the protective layer 600 includes acrylic. The acrylic material can enhance the surface strength of the screen, provide better protection for the screen, and reduce the reflectivity of the screen.

[0061] In some optional embodiments, the protrusion 610 includes a top surface 620 on a side facing away from the substrate 100 , and the top surface 620 is a part of a spherical surface.

[0062] In these optional embodiments, the top surface 620 is a part of a spherical surface, which can make the light emitted by the light-emitting unit 310 more evenly dispersed, further reducing the reflection of light.

[0063] An embodiment of a second aspect of the present application provides a display device, comprising a display panel 10 according to any one of the above embodiments.

[0064] In the display device provided in the embodiment of the present application, the display device includes a display panel 10, and the display panel 10 includes a substrate 100, a pixel definition layer 200, a light-emitting layer 300 and a decorative layer 400. The pixel definition layer 200 is located on one side of the substrate 100 and includes a pixel definition portion 210, and the pixel definition portion 210 encloses a pixel opening 220. The light-emitting layer 300 includes a plurality of light-emitting units 310 located at the pixel opening 220, and the pixel opening 220 is used to improve the problem of light crosstalk between light-emitting units 310 of different colors, and the light-emitting unit 310 is used to realize the display function of the display panel 10. The decorative layer 400 is located on the side of the light-emitting layer 300 away from the substrate 100, and the decorative layer 400 includes a pattern portion 410 and a polarizer 430. The pattern portion 410 has a texture pattern to decorate the screen body, while reducing the reflectivity of the screen body, and realizing the integration of the screen body with the environment. The polarizer 430 is used to reduce the reflectivity of the display panel 10 and thus reduce glare. The pattern portion 410 encloses a first opening 420, and the first opening 420 is used to set the polarizer 430, that is, the pattern portion 410 and the polarizer 430 are arranged in the same layer. In the embodiment of the present application, by arranging the pattern portion 410 and the polarizer 430 in the same layer, the polarizer 430 is located in the first opening 420 enclosed by the pattern portion 410, and the thickness of the stacked layers of the display panel 10 is reduced while reducing the area of ​​the polarizer 430, thereby improving the transmittance of the display panel 10 and enhancing the display effect of the display panel 10.

[0065] The display device in the embodiments of the present application includes but is not limited to mobile phones, personal digital assistants (PDAs), tablet computers, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0066] An embodiment of the third aspect of the present application provides a vehicle, comprising a display device according to any of the above-mentioned embodiments.

[0067] In the vehicle provided in the embodiment of the present application, the vehicle includes a display device, the display device includes a display panel 10, the display device includes a display panel 10, and the display panel 10 includes a substrate 100, a pixel definition layer 200, a light-emitting layer 300, and a decorative layer 400. The pixel definition layer 200 is located on one side of the substrate 100 and includes a pixel definition portion 210, and the pixel definition portion 210 encloses a pixel opening 220. The light-emitting layer 300 includes a plurality of light-emitting units 310 located at the pixel opening 220, and the pixel opening 220 is used to improve the problem of light crosstalk between light-emitting units 310 of different colors, and the light-emitting unit 310 is used to realize the display function of the display panel 10. The decorative layer 400 is located on the side of the light-emitting layer 300 away from the substrate 100, and the decorative layer 400 includes a pattern portion 410 and a polarizer 430. The pattern portion 410 has a texture pattern to decorate the screen body, while reducing the reflectivity of the screen body, and realizing the integration of the screen body with the environment. The polarizer 430 is used to reduce the reflectivity of the display panel 10 and thus reduce glare. The pattern portion 410 encloses a first opening 420, and the first opening 420 is used to set the polarizer 430, that is, the pattern portion 410 and the polarizer 430 are arranged in the same layer. In the embodiment of the present application, by arranging the pattern portion 410 and the polarizer 430 in the same layer, the polarizer 430 is located in the first opening 420 enclosed by the pattern portion 410, and the thickness of the stacked layers of the display panel 10 is reduced while reducing the area of ​​the polarizer 430, thereby improving the transmittance of the display panel 10 and enhancing the display effect of the display panel 10.

[0068] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A display panel, characterized in that: The display panel comprises: substrate; A pixel definition layer, located on one side of the substrate and comprising a pixel defining portion, wherein the pixel defining portion encloses a pixel opening; A light-emitting layer, comprising a plurality of light-emitting units located at the pixel openings; The decorative layer is located on the side of the light-emitting layer away from the substrate. The decorative layer includes a polarizer and a pattern portion with a decorative pattern. The pattern portion encloses a first opening. The polarizer is located in the first opening.

2. The display panel according to claim 1, characterized in that: The orthographic projection of the light emitting unit on the substrate is located within the orthographic projection of the polarizer on the substrate; Preferably, the polarizer includes a polarizer and a wave plate.

3. The display panel according to claim 1, characterized in that: It also includes an optical adjustment layer, which is located on the side of the light-emitting layer away from the substrate. The optical adjustment layer includes a light-transmitting portion and a functional portion, the functional portion encloses a second opening, and the light-transmitting portion is located in the second opening, wherein the functional portion is used to chemically react with the pattern portion when the light-emitting unit emits light, thereby changing the transmittance of the pattern portion.

4. The display panel according to claim 3, characterized in that: The pattern portion includes a first state and a second state, when the light emitting unit emits light, the pattern portion is in the first state, and when the light emitting unit does not emit light, the pattern portion is in the second state, wherein the light transmittance of the pattern portion in the first state is greater than the light transmittance of the pattern portion in the second state; Preferably, the material of the light-transmitting portion includes polyimide; Preferably, the material of the functional part includes polyethylene terephthalate, polymethyl methacrylate, and acrylonitrile-butadiene-styrene copolymer.

5. The display panel according to claim 3, characterized in that: The optical adjustment layer is located on a side of the decoration layer close to the substrate.

6. The display panel according to claim 3, characterized in that: The orthographic projection of the light emitting unit on the substrate is located within the orthographic projection of the light-transmitting portion on the substrate.

7. The display panel according to claim 1, characterized in that: The method further includes a protective layer, the protective layer is located on a side of the decorative layer away from the substrate, and the protective layer is provided with a protrusion arranged toward the side away from the substrate; Preferably, the material of the protective layer includes acrylic.

8. The display panel according to claim 7, characterized in that: The protrusion includes a top surface facing away from the substrate, and the top surface is a part of a spherical surface.

9. A display device, characterized in that: A display panel comprising any one of claims 1 to 8.

10. A vehicle, characterized in that: A display device comprising the display device according to claim 9.

Images