Color filter array substrate, method for fabricating the same and display device

A method for fabricating a color filter array substrate for a reflective type liquid crystal display panel comprising:

• forming an array substrate;
• forming a pattern of a black matrix on the array substrate, wherein the black matrix comprises a plurality of openings defining sub-pixel regions;
• and
• forming a pattern of a color filter layer and a pattern of a reflection layer in the plurality of openings on the array substrate, the reflection layer is disposed on a side of the color filter layer that is close to the array substrate;
• wherein
• the reflection layer is only disposed in the plurality of openings of the black matrix and completely covers the plurality of openings of the black matrix;
• the reflection layer is a continuous structure, and an orthographic projection of the reflection layer on the array substrate does not overlapped with an orthographic projection of the black matrix on the array substrate;
• the array substrate comprises:
• a base substrate, and a thin film transistor (TFT) and a pixel electrode connected to the TFT that are provided on the base substrate;
• the black matrix further comprises a plurality of black matrix units arranged along a first direction, and the color filter layer comprises a plurality of color filters arranged along the first direction;
• and
• a width of the reflection layer in the first direction is equal to a distance between orthographic projections of edges, which are in direct contact with edges of the reflection layer, of two black matrix units on the array substrate, and the width of the reflection layer in the first direction is further equal to a width of a color filter, which is in direct contact with the reflection layer, in the first direction.

A color filter array substrate for a reflective type liquid crystal display panel, comprising an array substrate and a black matrix, a color filter layer and a reflection layer formed on the array substrate;

• wherein,
• the black matrix comprises a plurality of openings defining sub-pixel regions;
• the color filter layer and the reflection layer are disposed in the plurality of openings and the reflection layer is disposed on a side of the color filter layer that is close to the array substrate;
• the reflection layer is only disposed in the plurality of openings of the black matrix and completely covers the plurality of openings of the black matrix;
• the reflection layer comprises a flat portion located in a middle region of the reflection layer, and an inclined portion located in an edge region of the reflection layer, a thickness of the inclined portion is larger than a thickness of the flat portion;
• the black matrix further comprises a plurality of black matrix units arranged along a first direction, and the color filter layer comprises a plurality of color filters arranged along the first direction;
• and
• a width of the reflection layer in the first direction is equal to a distance between orthographic projections of edges, which are in direct contact with edges of the reflection layer, of two black matrix units on the array substrate, and the width of the reflection layer in the first direction is further equal to a width of a color filter, which is in direct contact with the reflection layer, in the first direction.