US-12628535-B2 - Display panel and display device

US12628535B2US 12628535 B2US12628535 B2US 12628535B2US-12628535-B2

Abstract

Provided are a display panel and a display device. The display panel includes a substrate; sub-pixels on a side of the substrate, where the sub-pixels include light-emitting layers respectively, and each of at least one light-emitting layer includes an internal region and an edge region surrounding the internal region; and a first structure layer, on a light-emitting side of the light-emitting layers, and including lens sets each including microlenses, where the lens sets correspond to the sub-pixels one by one. The lens set includes a first region corresponding to the internal region and a second region corresponding to the edge region, and a density of microlenses in the second region is smaller than a density of mircolenses in the first region. According to the present disclosure, a display effect is improved.

Inventors

Wenbin JIA
Xiang Wan
Feifei Zhu

Assignees

HEFEI BOE JOINT TECHNOLOGY CO., LTD.
BOE TECHNOLOGY GROUP CO., LTD.

Dates

Publication Date: 20260512
Application Date: 20220729

Claims (14)

1 . A display panel, comprising: a substrate; sub-pixels, on a side of the substrate, the sub-pixels comprising light-emitting layers respectively, and for at least one of the light-emitting layers, each of the at least one of the light-emitting layers comprising an internal region and an edge region surrounding the internal region; and a first structure layer, on a light-emitting side of the light-emitting layers and comprising lens sets, one of the lens sets comprising microlenses, the lens sets corresponding to the sub-pixels one by one, and the one of the lens sets comprising a first region corresponding to the internal region and a second region corresponding to the edge region, wherein a density of microlenses in the second region is smaller than a density of microlenses in the first region; wherein each of the microlenses is a convex lens structure, a ratio of a rise of one of the microlenses in the second region to a diameter of the one of the microlenses in the second region is smaller than a ratio of a rise of another of the microlenses in the first region to a diameter of the another of the microlenses in the first region.
2 . The display panel according to claim 1 , wherein from a center of the one of the lens sets to an edge of the one of the lens sets, a density of the microlenses decreases gradually.
3 . The display panel according to claim 1 , wherein a distance between two adjacent microlenses in the second region is greater than a distance between two adjacent microlenses in the first region.
4 . The display panel according to claim 3 , wherein from a center of the one of lens sets to an edge of the one of lens sets, a distance between two adjacent microlenses increases gradually.
5 . The display panel according to claim 3 , wherein a distance between two adjacent microlenses is less than a diameter of each of the two adjacent microlenses.
6 . The display panel according to claim 5 , wherein a diameter of one of the microlenses in the second region is the same as a diameter of another of the microlenses in the first region.
7 . The display panel according to claim 5 , wherein from a center of the one of the lens sets to an edge of the one of the lens sets, a ratio of a rise of one of the microlenses to a diameter of the one of the microlenses decreases gradually.
8 . The display panel according to claim 1 , wherein the ratio of the rise of the one of the microlenses in the second region to the diameter of the one of the microlenses in the second region is greater than or equal to 0.1 or less than or equal to 0.3.
9 . The display panel according to claim 1 , wherein the ratio of the another of the microlenses in the first region the rise to the diameter of the another of the microlenses in the first region is greater than or equal to 0.4 or less than or equal to 0.7.
10 . The display panel according to claim 1 , wherein a width of the edge region is greater than or equal to 5 μm or less than or equal to 10 μm.
11 . The display panel according to claim 1 , further comprising: an encapsulation structure, covering the sub-pixels, wherein the first structure layer is on a side of the encapsulation structure away the substrate.
12 . The display panel according to claim 11 , wherein the encapsulation structure comprises: a first inorganic encapsulation layer, covering the sub-pixels; an organic encapsulation layer, on the first inorganic encapsulation layer; and a second inorganic encapsulation layer, covering the organic encapsulation layer, wherein the microlenses are on a surface of the second inorganic encapsulation layer away the substrate, and a refractive index of each of the microlenses is same as a refractive index of the second inorganic encapsulation layer.
13 . The display panel according to claim 1 , further comprising: a planarization layer, covering the first structure layer, and a refractive index of the planarization layer is less than a refractive index of each of the microlenses.
14 . A display device, comprising: the display panel according to claim 1 .

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application is a national stage of international PCT Application No. PCT/CN2022/109172 filed on Jul. 29, 2022, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD The present disclosure relates to a technical field of display, and in particular, to a display panel and a display device. BACKGROUND With the development of technology, display technology has attracted more and more attention. At present, the display panel has a problem of poor display effect. SUMMARY Purposes for the present disclosure is to provide a display panel and a display device so as to improve the display effect. According to an aspect of the present disclosure, a display panel is provided, including: a substrate;sub-pixels, on a side of the substrate, the sub-pixels including light-emitting layers respectively, and for at least one of the light-emitting layers, each of the at least one of the light-emitting layers including an internal region and an edge region surrounding the internal region; anda first structure layer, on a light-emitting side of the light-emitting layer and including lens sets, one of the lens sets including microlenses, the lens sets corresponding to the sub-pixels one by one, and the one of the lens sets including a first region corresponding to the internal region and a second region corresponding to the edge region, wherein a density of microlenses in the second region is smaller than a density of microlenses in the first region. Further, from a center of the one of the lens sets to an edge of the one of the lens sets, a density of one of the microlenses decreases gradually. Further, a distance between two adjacent microlenses in the second region is greater than a distance between two adjacent microlenses in the first region. Further, from a center of the one of lens sets to an edge of the one of lens sets, a distance between two adjacent microlenses increases gradually. Further, a distance between two adjacent microlenses is less than a diameter of each of the microlenses. Further, one of the microlens is a convex lens structure, a ratio of a rise of one of the microlenses in the second region to the diameter of the one of the microlenses in the second region is smaller than a ratio of a rise of another of the microlenses in the first region to a diameter of the another of the microlensed in the first region. Further, the ratio of the rise of the one of the microlenses in the second region to the diameter of the one of the microlenses in the second region is greater than or equal to 0.1 or less than or equal to 0.3. Further, wherein the ratio of the another of the microlenses in the first region the rise to the diameter of the another of the microlenses in the first region is greater than or equal to 0.4 or less than or equal to 0.7. Further, a diameter of one of the microlenses in the second region is the same as a diameter of another of the microlenses in the first region. Further, from a center of the one of the lens sets to an edge of the one of the lens sets, a ratio of a rise to a diameter decreases gradually. Further, a width of the edge region is greater than or equal to 5 μm or less than or equal to 10 μm. Further, the display panel further including: an encapsulation structure, covering the sub-pixels, wherein the first structure layer is on a side of the encapsulation structure away the substrate. Further, the encapsulation structure includes: a first inorganic encapsulation layer, covering the sub-pixels;an organic encapsulation layer, on the first inorganic encapsulation layer; anda second inorganic encapsulation layer, covering the organic encapsulation layer, wherein the microlens is on a surface of the second inorganic encapsulation layer away the substrate, and a refractive of each of the microlenses is same as a refractive index of the second inorganic encapsulation layer. Further, the display panel further including: a planarization layer, covering the first structure layer, and a refractive index of the planarization layer is less than a refractive index of each of the microlenses. According to an aspect of the present disclosure, a display device is provided, where the display device includes the display panel. According to a display panel and a display device of the present disclosure, a light-emitting layer includes an internal region and an edge region surrounding the internal region, an lens set includes a first region corresponding to the internal region and a second region corresponding to the edge region, as a density of a microlens in the second region is smaller than a density of a mircolens in the first region, a light extraction effect of the edge region of the light-emitting layer is weaker than a light extraction effect of the internal region of the light-emitting layer, a problem of the light leakage at the edge region of the light-emitting layer can be improved, a problem of cross-color due to the l