CN-122027874-A - Display panel, display device and control method of display panel

Abstract

The application relates to the technical field of display, in particular to a display panel, a display device and a control method, and aims to solve the technical problem that an existing under-screen camera shooting display panel needs to sacrifice a display effect in exchange for a camera shooting effect. The application can effectively avoid the shielding of the light-emitting element on the incident light by arranging the groove and integrating the liquid lens and arranging the moving component and the imaging element, remarkably improve the light-in quantity and imaging definition of the under-screen image pickup area without sacrificing the display effect, and realize optical zooming by adjusting the curvature of the liquid lens by the moving component, so that the display panel has the under-screen image pickup function with high quality, stability and reliability while keeping the high screen duty ratio and excellent display effect, and realizes the dual performance of display and imaging.

Inventors

• DENG YUAN
• XIE FEI
• YUAN DEMAO
• GE XIAOYU
• YU GUICHEN

Assignees

• 京东方科技集团股份有限公司
• 重庆京东方显示技术有限公司

Dates

Publication Date

20260512

Application Date

20260326

Claims (17)

1. 1. A display panel comprising a light transmissive display region, the light transmissive display region comprising: A substrate including a plurality of groove regions and light emitting regions between adjacent groove regions, wherein each groove region includes a groove opened from a first surface of the substrate, each light emitting region includes a light emitting element; a moving assembly disposed opposite the first surface of the substrate; A liquid lens encapsulated between the substrate and the moving assembly; an imaging element disposed on a side of the moving assembly away from the substrate for receiving incident light from the substrate side, Wherein the moving assembly is capable of applying pressure to the liquid lens to change the curvature of the liquid lens.
2. 2. The display panel of claim 1, further comprising: The first transparent plate is arranged on the bottom surface of the groove; And the second transparent plate is arranged between the liquid lens and the moving assembly.
3. 3. The display panel of claim 1, wherein the liquid lens comprises a film and a first medium surrounded by the film.
4. 4. A display panel according to claim 3, wherein a gap is provided between the recess and the liquid lens, and a second medium is filled in the gap, and the refractive index of the second medium is smaller than that of the first medium.
5. 5. A display panel according to claim 3, further comprising an elastic buffer member disposed within the recess.
6. 6. The display panel of claim 1, wherein the sidewalls of the recess are provided with a total reflection film layer.
7. 7. The display panel of claim 2, wherein the bottom corners of the grooves are arcuate.
8. 8. The display panel of claim 1, wherein the moving component is a piezoelectric thin film element.
9. 9. The display panel of claim 1, wherein the imaging element comprises: The first imaging elements are arranged on one side, far away from the substrate, of the moving assembly and are arranged in one-to-one correspondence with the grooves; And the second imaging element is arranged on one side of the first imaging element away from the substrate.
10. 10. The display panel of claim 2, wherein in the light emitting region, the substrate comprises: A substrate; A driving circuit layer disposed on the substrate; An anode disposed on the driving circuit layer; A pixel defining layer having an opening region exposing the anode; a light emitting element provided on the anode; and a cathode.
11. 11. The display panel of claim 10, wherein the display panel comprises, The bottom surface of the groove is flush with the top surface of the pixel defining layer; the surface of the first transparent plate away from the imaging element is not lower than the surface of the cathode away from the imaging element.
12. 12. The display panel of claim 1, further comprising: the packaging layer covers the groove area and the light-emitting area on the surface of the substrate far away from the imaging element; And the cover plate is arranged on the surface, far away from the imaging element, of the packaging layer.
13. 13. The display panel of claim 12, further comprising a touch layer disposed between the encapsulation layer and the cover plate, including a touch metal trace, wherein a front projection of the touch metal trace on the cover plate and a front projection of the liquid lens and the light emitting element on the cover plate do not overlap; The black matrix is arranged on one side of the metal wire, facing the packaging layer, and is aligned with the touch control layer in a projection relation.
14. 14. A display device comprising the display panel of any one of claims 1-13.
15. 15. A control method of a display panel according to any one of claims 1 to 13, characterized in that the method comprises: Acquiring an optical image under the condition that the liquid lens is of a first curvature; Judging whether the definition difference value between the optical image and a preset standard image is smaller than a preset threshold value or not; if not, determining a curvature correction value of the liquid lens based on the definition difference value; And driving a moving component to adjust the curvature of the lens based on the curvature correction value.
16. 16. The method of claim 15, wherein the driving a movement assembly to adjust the curvature of the lens based on the curvature correction value comprises: Calculating a moving direction and a distance of the moving assembly based on the curvature correction value, wherein the moving direction is towards or away from the liquid lens; and driving the moving assembly to move the distance according to the moving direction.
17. 17. The method of claim 15, further comprising outputting the optical image if the sharpness difference between the optical image and a preset standard image is determined to be less than the preset threshold.

Description

Display panel, display device and control method of display panel Technical Field The invention relates to the technical field of display, and particularly provides a display panel, a display device and a control method of the display panel. Background With the continuous increase of consumer demand for high-screen-ratio mobile intelligent display devices, an under-screen image capturing technology has become an important research and development direction in the field of Organic Light-Emitting diodes (OLEDs). However, the existing under-screen camera shooting product generally has the problem that the display effect and the camera shooting effect are difficult to consider, and part of display performance is generally required to be sacrificed to be replaced by the improvement of the camera shooting effect, so that the two performances are finally weaker than those of the conventional non-under-screen product, and the user experience is poor. The current under-screen camera shooting technology mainly has two main bottlenecks, namely that structures such as a thin film transistor circuit, a pixel electrode, a touch wiring and the like can shield incident light, insufficient light incoming quantity and dark and fuzzy imaging are caused, and the traditional optical lens is large in size and difficult to integrate with a display panel without interference. The prior improvement scheme mainly comprises two types of compressed pixel circuits and circuit migration, wherein the two types of compressed pixel circuits can cause obvious difference of definition of an under-screen area and a normal display area, the transmittance of the under-screen area is further reduced under the high-resolution novel substrate scheme, while the other types of compressed pixel circuits can slightly improve the display and imaging effects, but the latter types of compressed pixel circuits can occupy a large amount of wiring space, increase the process complexity and the production cost, and part of schemes also need to cancel the touch control function, both at the expense of the display effect or the use experience. Therefore, there is a need in the art for a display panel having both excellent display and image capturing effects. Disclosure of Invention The present application is proposed to overcome the above-mentioned drawbacks, and to solve or at least partially solve the technical problem that the existing under-screen camera display panel needs to sacrifice the display effect in exchange for the camera effect. The application provides a display panel, a display device and a control method of the display panel. In a first aspect, the present application provides a display panel comprising a light transmissive display region, wherein the light transmissive display region comprises: A substrate including a plurality of groove regions and light emitting regions between adjacent groove regions, wherein each groove region includes a groove opened from a first surface of the substrate, each light emitting region includes a light emitting element; a moving assembly disposed opposite the first surface of the substrate; A liquid lens encapsulated between the substrate and the moving assembly; an imaging element disposed on a side of the moving assembly away from the substrate for receiving incident light from the substrate side, Wherein the moving assembly is capable of applying pressure to the liquid lens to change the curvature of the liquid lens. In one embodiment of the display panel of the present application, further comprising: The first transparent plate is arranged on the bottom surface of the groove; And the second transparent plate is arranged between the liquid lens and the moving assembly. In one embodiment of the display panel of the present application, the liquid lens includes a film and a first medium coated by the film. In one embodiment of the display panel of the present application, a gap is formed between the groove and the liquid lens, and a second medium is filled in the gap, and the refractive index of the second medium is smaller than that of the first medium. In one embodiment of the display panel of the present application, an elastic buffer member is further included in the recess. In one embodiment of the display panel of the present application, the sidewalls of the recess are provided with a total reflection film layer. In one embodiment of the display panel of the present application, a bottom corner of the groove is arc-shaped. In one embodiment of the display panel of the present application, the moving component is a piezoelectric thin film element. In one embodiment of the display panel of the present application, the imaging element includes: The first imaging elements are arranged on one side, far away from the substrate, of the moving assembly and are arranged in one-to-one correspondence with the grooves; And the second imaging element is arranged on one side of the first imaging element away fro