Array substrate and display panel
An array substrate and a display panel. The array substrate includes: a base layer including at least one base sub-layer each being a light-transmitting layer; a transistor layer on the base layer, the transistor layer including a plurality of transistors; and at least one light adjustment layer on a side of the transistor layer facing the base layer, the at least one light adjustment layer being configured to block, at least in a preset state, light from at least one side of the at least one light adjustment layer. In the array substrate, the amount of light irradiated on the transistor layer from the side of the base layer is reduced and the photo-induced leakage current in the transistors in the transistor layer is reduced, thus alleviating locally non-uniform brightness of a displayed image.
1 . A display panel, comprising an array substrate comprising:
a base layer, comprising at least one base sub-layer, each of the at least one base sub-layer being a light-transmitting layer;
a transistor layer, located on the base layer, the transistor layer comprising a plurality of transistors; and
at least one light adjustment layer, located on the same side of the transistor layer as the base layer, the at least one light adjustment layer being configured to block, at least in a preset state, light from at least one side of the at least one light adjustment layer, wherein the at least one light adjustment layer is transformed gradually from a light-transmitting state to a color-changed state depending on a time period of being exposed to light,
wherein a display area of the display panel comprises a photosensitive module setting area, and the display panel further comprises:
a support film, located on a side of the base layer facing away from the transistor layer; and
an adhesive tape layer, located on a side of the support film facing away from the transistor layer, wherein the adhesive tape layer comprises an opening disposed in the photosensitive module setting area.
2 . The display panel according to claim 1 , wherein the light adjustment layer is a photochromic layer, and the photochromic layer is configured to allow light from a side of the transistor layer away from the base layer to transmit through the photochromic layer when the photochromic layer is in an initial state to enable the light to be received by a photosensitive module of the display panel to ensure normal operation of the photosensitive module.
3 . The display panel according to claim 1 , wherein the transistor layer comprises a plurality of transistors, and
the light adjustment layer is a photochromic layer, and the photochromic layer is configured to reduce an amount of light irradiated on a channel of the transistor from the side of the base layer when the photochromic layer is in a color-changed state, wherein the light from the side of the base layer is light reflected by the at least one base sub-layer in the base layer or by other film layers on the side of the base layer.
4 . The display panel according to claim 1 , wherein the light adjustment layer is a photochromic layer, and the photochromic layer is configured to be in the light-transmitting state when the photochromic layer is in an initial state or exposed to light for a short time, and to be in the color-changed state by gradually changing color when the photochromic layer is exposed to light for a long time.
5 . The display panel according to claim 1 , wherein the at least one light adjustment layer is located on a side of the base layer facing away from the transistor layer.
6 . The display panel according to claim 1 , wherein the light adjustment layer is a photochromic layer, the photochromic layer is configured to block light from any side of the photochromic layer when in a color-changed state.
7 . The display panel according to claim 6 , wherein the photochromic layer is a black layer in the color-changed state, and
the photochromic layer is a light-transmitting layer in an initial state.
8 . The display panel according to claim 6 , wherein the array substrate comprises one photochromic layer.
9 . The display panel according to claim 6 , wherein the array substrate comprises at least two photochromic layers.
10 . The display panel according to claim 6 , wherein the photochromic layer is formed by adding at least one photochromic particle to any of the at least one base sub-layer.
11 . The display panel according to claim 10 , wherein a material of the photochromic particle comprises at least one of aluminoborosilicate and borosilicate.
12 . The display panel according to claim 6 , wherein the photochromic layer comprises:
a base material layer, the base material layer being a light-transmitting layer; and
at least one photochromic particle dispersed in the base material layer.
13 . The display panel according to claim 12 , wherein a material of the photochromic particle comprises at least one of aluminoborosilicate, borosilicate and silver halide.
14 . The display panel according to claim 1 , wherein the light adjustment layer is a unidirectional light-transmitting layer, the unidirectional light-transmitting layer comprises a first surface facing the transistor layer and a second surface facing away from the transistor layer, and the unidirectional light-transmitting layer blocks light from a side, which is corresponding to the second surface, of the unidirectional light-transmitting layer.
15 . The display panel according to claim 14 , wherein the unidirectional light-transmitting layer comprises a plurality of sub-layers that are stacked, each of the plurality of sub-layers is a light-transmitting layer with a preset refractive index, and a plurality of refractive indexes, of the plurality of sub-layers sequentially stacked in a direction from the first surface to the second surface, decrease along the direction from the first surface to the second surface.
16 . The display panel according to claim 14 , wherein the unidirectional light-transmitting layer allows light from one side of the unidirectional light-transmitting layer to transmit through, and blocks light from the other side of the unidirectional light-transmitting layer.
17 . The display panel according to claim 14 , wherein a first transmittance, for light from one side of the unidirectional light-transmitting layer, of the unidirectional light-transmitting layer is lower than a second transmittance, for light from the other side of the unidirectional light-transmitting layer, of the unidirectional light-transmitting layer.
18 . The display panel according to claim 1 , wherein each of the at least one light adjustment layer is located between any two adjacent base sub-layers.
19 . The display panel according to claim 1 , wherein the at least one light adjustment layer is located on a side of the base layer facing the transistor layer.