Array substrate and display panel comprising light adjusting layer between transparent layers

Patent metadata

Field	Value
Publication number	US-12588396-B2
Application number	US-202217733298-A
Country	US
Kind code	B2
Filing date	Apr 29, 2022
Priority date	May 22, 2020
Publication date	Mar 24, 2026
Grant date	Mar 24, 2026

Abstract

An array substrate and a display panel, which relate to the technical field of flexible displays and are used for solving the problem of the Newton's ring phenomenon due to unequal spacing between transparent layers affects the display effect of the display panel. The array substrate or a display panel include at least two transparent layers stacked in sequence, and a light adjusting layer arranged between at least two adjacent transparent layers, where a product of a refractive index of the light adjusting layer and a thickness of the light adjusting layer is greater than one half of a preset wave train length.

First claim

What is claimed is:

1 . An array substrate, comprising: at least two transparent layers stacked in sequence, wherein in the at least two transparent layers, a light adjusting layer is arranged between at least adjacent two of the transparent layers,
wherein a product of a refractive index of the light adjusting layer and a thickness of the light adjusting layer is greater than one half of a preset wave train length to avoid forming Newton's ring, the preset wave train length refers to a wave train length of a preset-wavelength light incident into the array substrate; wherein the light adjusting layer comprises a first light modulation layer, an optical path adjustment layer and a second light modulation layer stacked in sequence, two sides of the optical path adjustment layer are respectively attached to the first light modulation layer and the second light modulation layer; a refractive index of the first light modulation layer is between a refractive index of a transparent layer adjacent to the first light modulation layer and a refractive index of the optical path adjustment layer; a refractive index of the second light modulation layer is between a refractive index of a transparent layer adjacent to the second light modulation layer and the refractive index of the optical path adjustment layer; and a product of the refractive index of the optical path adjustment layer and a thickness of the optical path adjustment layer is greater than one half of the preset wave train length; wherein the array substrate comprises a substrate and a buffer layer, and the buffer layer comprises a first buffer layer close to the substrate and a second buffer layer parallel to and opposite to the first buffer layer; and the light adjusting layer is arranged between the first buffer layer and the second buffer layer, and both sides of the light adjusting layer located between the first buffer layer and the second buffer layer are respectively attached to the first buffer layer and the second buffer layer.

2 . The array substrate according to claim 1 , wherein each of the substrate and the buffer layer comprises one of the at least two transparent layers; and
the light adjusting layer is arranged between the substrate and the buffer layer, and both sides of the light adjusting layer located between the substrate and the buffer layer are respectively attached to the substrate and the buffer layer.

3 . The array substrate according to claim 1 , wherein the optical path adjustment layer comprises a titanium dioxide layer or a zinc oxide layer.

4 . A display panel, comprising: the array substrate according to claim 1 , a light-emitting layer disposed on the array substrate, and an encapsulation layer disposed on the light-emitting layer;
wherein the light adjusting layer is arranged between the light-emitting layer and the encapsulation layer, and at least one side of the light adjusting layer located between the light-emitting layer and the encapsulation layer is attached to the encapsulation layer or the light-emitting layer.

5 . The display panel according to claim 4 , wherein one side of the light adjusting layer located between the light-emitting layer and the encapsulation layer is attached to the encapsulation layer, and a vacuum space is formed between the other side of the light adjusting layer and the light-emitting layer.

6 . The display panel according to claim 5 , wherein a plurality of support pads are arranged in the vacuum space, one end of each of the support pads support the light adjusting layer attached to the encapsulation layer, and the other end of each of the support pads supports the light-emitting layer.

7 . The display panel according to claim 4 , wherein one side of the light adjusting layer located between the light-emitting layer and the encapsulation layer is attached to the light-emitting layer, and a vacuum space is formed between the other side of the light adjusting layer and the encapsulation layer.

8 . The display panel according to claim 7 , wherein a plurality of support pads are arranged in the vacuum space, one end of each of the support pads supports the encapsulation layer, and the other end of each of the support pads supports the light adjusting layer attached to the light-emitting layer.

9 . The display panel according to claim 4 , wherein two light adjusting layers are arranged between the light-emitting layer and the encapsulation layer, wherein a side of one light adjusting layer is attached to the encapsulation layer, and a side of the other light adjusting layer is attached to the light-emitting layer; and
a vacuum space is formed between the two light adjusting layers.

10 . The display panel according to claim 9 , wherein a plurality of support pads are arranged in the vacuum space, one end of each of the support pads supports the light adjusting layer attached to the encapsulation layer, and the other end of each of the support pads supports the other light adjusting layer attached to the light-emitting layer.

11 . The display panel according to claim 4 , further comprising: a touch layer arranged on the encapsulation layer, wherein the light adjusting layer is arranged between the touch layer and the encapsulation layer, and two sides of the light adjusting layer located between the touch layer and the encapsulation layer are respectively attached to the touch layer and the encapsulation layer.

Assignees

• Kunshan Govisionox Optoelectronics Co Ltd

Inventors

• Fang Xuyang
• Peng Chao Chi
• Liu Mingxing
• Wang Zihao
• Wang Panpan
• Zhang Zhiyuan
• Gan Shuaiyan

Classifications

• H10K59/65

  OLEDs integrated with inorganic image sensors · CPC title

• H10K59/87 Primary

  Passivation; Containers; Encapsulations · CPC title

• H10K2102/101

  comprising transparent conductive oxides [TCO] · CPC title

• H10K50/84

  Passivation; Containers; Encapsulations · CPC title

• H10K50/858

  comprising refractive means, e.g. lenses · CPC title