Display panel, preparation method thereof, and display apparatus

Patent metadata

Field	Value
Publication number	US-11493798-B2
Application number	US-202117509080-A
Country	US
Kind code	B2
Filing date	Oct 25, 2021
Priority date	Feb 26, 2021
Publication date	Nov 8, 2022
Grant date	Nov 8, 2022

Abstract

Provided are a display panel, a preparation method thereof, and a display apparatus. The display panel includes a first substrate and a second substrate disposed oppositely, and a liquid crystal layer sandwiched between the first substrate and the second substrate, wherein the first substrate includes a black matrix layer and a color filter layer which are sequentially disposed on a first base substrate; at least one of the first substrate and the second substrate further includes a spacer; and the black matrix layer includes at least one first black matrix, and an orthographic projection of each first black matrix on the first base substrate covers an orthographic projection of the spacer on the first base substrate.

First claim

What is claimed is:

1. A display panel, comprising: a first substrate and a second substrate disposed oppositely, and a liquid crystal layer sandwiched between the first substrate and the second substrate, wherein,
the first substrate comprises a black matrix layer and a color filter layer which are sequentially disposed on a first base substrate; at least one of the first substrate and the second substrate further comprises a spacer; and
the black matrix layer comprises at least one first black matrix, and an orthographic projection of each first black matrix on the first base substrate covers an orthographic projection of the spacer on the first base substrate;
wherein the second substrate comprises an array structure layer, a shielding layer, an insulating layer, and a reflective layer which are sequentially disposed on a second base substrate, wherein:
the array structure layer comprises a plurality of gate lines, a plurality of data lines and a plurality of thin film transistors;
the reflective layer comprises a plurality of reflective units arranged in an array along a first direction and a second direction intersecting with each other, the plurality of reflective units form a plurality of reflective rows and a plurality of reflective columns, a space area between adjacent reflective columns forms a first space area, and a space area between adjacent reflective rows forms a second space area; and
the shielding layer comprises a plurality of light shielding units arranged separately and sequentially along the first direction, each light shielding unit extends along the second direction, and an orthographic projection of each light shielding unit on the second base substrate covers an orthographic projection of the first space area on the second base substrate.

2. The display panel according to claim 1 , wherein the second substrate comprises a second base substrate and an array structure layer disposed on the second base substrate, wherein,
the array structure layer comprises a gate electrode disposed on the second base substrate, a first insulating layer covering the gate electrode, an active layer disposed on the first insulating layer, a source electrode and a drain electrode disposed on the first insulating layer and the active layer, a second insulating layer covering the source electrode and the drain electrode, and a connection electrode disposed on the second insulating layer, and the second insulating layer is disposed with at least one first via, and the connection electrode is connected to the drain electrode through the first via; and
the black matrix layer further comprises at least one second black matrix, and an orthographic projection of each second black matrix on the first base substrate covers an orthographic projection of one first via on the first base substrate.

3. The display panel according to claim 2 , wherein a distance between an edge of the orthographic projection of the first black matrix on the first base substrate and an edge of the orthographic projection of the corresponding spacer on the first base substrate is 1 μm to 3 μm; and
a distance between an edge of the orthographic projection of the second black matrix on the first base substrate and an edge of the orthographic projection of the corresponding first via on the first base substrate is 1 μm to 3 μm.

4. A display apparatus comprising the display panel according to claim 1 .

5. A preparation method of the display panel, for preparing the display panel according to claim 1 , the method comprising:
forming the first substrate and the second substrate respectively, wherein the first substrate comprises the black matrix layer and the color filter layer which are sequentially disposed on the first base substrate; at least one of the first substrate and the second substrate further comprises the spacer, and the black matrix layer comprises the at least one first black matrix, and the orthographic projection of each first black matrix on the first base substrate covers the orthographic projection of the spacer on the first base substrate; and
cell-assembling the first substrate and the second substrate, and filling liquid crystal between the first substrate and the second substrate.

6. A display panel, comprising: a first substrate and a second substrate disposed oppositely, and a liquid crystal layer sandwiched between the first substrate and the second substrate, wherein,
the second substrate comprises an array structure layer, a shielding layer, an insulating layer, and a reflective layer which are sequentially disposed on a second base substrate;
the array structure layer comprises a plurality of gate lines, a plurality of data lines and a plurality of thin film transistors;
the reflective layer comprises a plurality of reflective units arranged in an array along a first direction and a second direction intersecting with each other, wherein the plurality of reflective units form a plurality of reflective rows and a plurality of reflective columns, a space area between adjacent reflective columns forms a first space area, and a space area between adjacent reflective rows forms a second space area; and
the shielding layer comprises a plurality of light shielding units arranged separately and sequentially along the first direction, each light shielding unit extends along the second direction, and an orthographic projection of each light shielding unit on the second base substrate covers an orthographic projection of the first space area on the second base substrate;
wherein each light shielding unit comprises a first light shielding part and a second light shielding part, and an orthographic projection of the first light shielding part on the second base substrate is not overlapped with an orthographic projection of the second space area on the second base substrate; an orthographic projection of the second light shielding part on the second base substrate is overlapped with the orthographic projection of the second space area on the second base substrate, and a width of the second light shielding part in the first direction is larger than a width of the first light shielding part in the first direction.

7. The display panel according to claim 6 , wherein the first light shielding part comprises a first edge and a second edge which are disposed opposite to each other in the first direction, and the first space area comprises a third edge and a fourth edge which are disposed opposite to each other in the first direction, and a space between the first edge of the first light shielding part and the third edge of the corresponding first space area is 1 μm to 3 μm, and a space between the second edge of the first light shielding part and the fourth edge of the corresponding first space area is 1 μm to 3 μm.

8. The display panel according to claim 6 , wherein a width of the first space area in the first direction is 3 μm to 5 μm, and a width of the second space area in the second direction is 7 μm to 9 μm.

9. A display apparatus comprising the display panel according to claim 6 .

10. A preparation method of the display panel, for preparing the display panel according to claim 6 , the method comprising:
forming the first substrate and the second substrate respectively, wherein the second substrate comprises the array structure layer, the shielding layer, the insulating layer, and the reflective layer which are sequentially disposed on the second base substrate; the reflective layer comprises the plurality of reflective units arranged in the array along the first direction and the second direction intersecting with each other, wherein the plurality of reflective units form the plurality of reflective rows and the plurality of columns

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Technology Dev Co Ltd

Inventors

• Zhang Zhao
• Chen Yanqing
• Li Wei
• Qin Weida
• Chen Kai
• Wang Jiguo
• Yan Wei
• Zhang Xiaofeng
• Li Zeliang
• Zhang Jian
• Wang Zhen

Classifications

• G02F1/1362

  Active matrix addressed cells {(G02F1/134336, G02F1/134363 take precedence)} · CPC title

• G02F1/133512 Primary

  Light shielding layers, e.g. black matrix (G02F1/136209 takes precedence) · CPC title

• G02F1/133626

  providing two modes of illumination, e.g. day-night · CPC title

• G02F1/13394

  spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence) · CPC title

• G02F2413/05

  Single plate on one side of the LC cell · CPC title