Array substrate and liquid crystal display apparatus

Patent metadata

Field	Value
Publication number	US-2016306223-A1
Application number	US-201414778814-A
Country	US
Kind code	A1
Filing date	Dec 17, 2014
Priority date	Sep 9, 2014
Publication date	Oct 20, 2016
Grant date	—

Abstract

An array substrate and a liquid crystal display apparatus are disclosed. The array substrate includes a substrate and a first electrode formed on the substrate. The array substrate includes a first side and a second side that is opposite to the first side. The first electrode includes multiple pixels and each pixel includes multiple slits. A slit width of at least one slit close to the second side and an inter-slit distance between the at least one slit and another slit adjacent to the at least one slit are greater than a slit width of a first slit close to the first side and an inter-slit distance between the first slit and another slit adjacent to the first slit, respectively. The liquid crystal display apparatus has uniform grayscale in different positions from the first side close to the backlight source to the second side opposite to the first side.

First claim

1 . An array substrate, comprising:
a substrate; and a first electrode formed on the substrate, wherein:
the array substrate comprises a first side and a second side that is opposite to the first side;
the first electrode includes a plurality of pixels and each pixel is configured to include a plurality of slits;
a slit width of at least one slit that is close to the second side is greater than a slit width of a first slit that is close to the first side; and
an inter-slit distance between the at least one slit close to the second side and another slit that is adjacent to the at least one slit is greater than an inter-slit distance between the first slit close to the first side and another slit that is adjacent to the first slit.

2 . The array substrate of claim 1 , wherein for each slit in the plurality of pixels, a ratio of a slit width associated with the respective slit and an inter-slit distance between the respective slit and another slit that is adjacent to the respective slit is a constant.

3 . The array substrate of claim 1 , wherein the plurality of pixels is arranged in multiple rows from the first side to the second side.

4 . The array substrate of claim 3 , wherein pixels located in a same row correspond to at least three different colors.

5 . The array substrate of claim 3 , wherein for each pixel located in a same row:
slit widths of slits in the respective pixel are increased gradually from the first side to the second side; and inter-slit distances between the slits in the respective pixel and other slits that are respectively adjacent to the slits in the respective pixel are increased gradually from the first side to the second side.

6 . The array substrate of claim 3 , wherein:
slits of each pixel located in a same row have equal slit widths; inter-slit distances between the slits of each pixel in the same row and other slits which are respectively adjacent to the slits of the respective pixel are equal; slit widths of first slits associated with pixels that are located in a first row close to the second side are greater than slit widths of second slits associated with pixels that are located in a second row close to the first side; and inter-slit distances between the first slits located in the first row close to the second side and other slits that are respectively adjacent to the first slits are greater than inter-slit distances between the second slits located in the second row close to the first side and other slits that are respectively adjacent to the second slits.

7 . The array substrate of claim 3 , wherein:
slits of each pixel located in a same row have equal slit widths; inter-slit distances between the slits of each pixel in the same row and other slits which are respectively adjacent to the slits of the respective pixel are equal; slit widths of slits associated with pixels that are located in respective same rows from the first side to the second side are increased gradually from the first side to the second side; and inter-slit distances between the slits associated with the pixels that are located in the respective same rows and other slits which are respectively adjacent to the slits associated with the respective pixels are increased gradually from the first side to the second side.

8 . The array substrate of claim 3 , wherein:
pixels in at least two rows form a group; slits of each pixel located in a same group have equal slit widths; inter-slit distances between the slits of each pixel in the same group and other slits which are respectively adjacent to the slits of the respective pixel are equal; slit widths of first slits associated with pixels that are located in a first group close to the second side are greater than slit widths of second slits associated with pixels that are located in a second group close to the first side; and inter-slit distances between the first slits in the first group and other slits that are respectively adjacent to the first slits are greater than inter-slit distances between the second slits in the second group and other slits that are respectively adjacent to the second slits.

9 . The array substrate of claim 3 , wherein:
pixels in at least two rows form a group; slits of each pixel located in a same group have equal slit widths; inter-slit distances between the slits of each pixel in the same group and other slits which are respectively adjacent to the slits of the respective pixel are equal; slit widths of slits associated with pixels that are located in respective same groups from the first side to the second side are increased gradually from the first side to the second side; and inter-slit distances between the slits associated with the pixels that are located in the respective same groups and other slits which are respectively adjacent to the slits associated with the respective pixels are increased gradually from the first side to the second side.

10 . The array substrate of claim 8 , wherein each pixel located in a same row corresponds to a same color, and pixels located in multiple rows that correspond to different colors form a group.

11 . The array substrate of claim 1 , further comprising a second electrode formed on the substrate, wherein:
the second electrode comprises a plurality of pixel regions that have a one-to-one correspondence with the plurality of pixels in the first electrode and each pixel region is configured to include multiple slits; slit widths of slits in a pixel region of the second electrode correspond to slit widths of slits in a pixel of the first electrode that corresponds to the pixel region; and inter-slit distances between the slits in the pixel region and other slits that are respectively adjacent to the slits in the pixel region correspond to inter-slit distances between the slits in the pixel of the first electrode and other slits that are respectively adjacent to the slits of the pixel.

12 . A liquid crystal display apparatus, comprising a backlight source and the array substrate of claim 1 , wherein the backlight source is arranged at a position close to the first side of the array substrate.

13 . The array substrate of claim 2 , wherein the plurality of pixels is arranged in multiple rows from the first side to the second side.

14 . The array substrate of claim 4 , wherein for each pixel located in a same row:
slit widths of slits in the respective pixel are increased gradually from the first side to the second side; and inter-slit distances between the slits in the respective pixel and other slits that are respectively adjacent to the slits in the respective pixel are increased gradually from the first side to the second side.

15 . The array substrate of claim 4 , wherein:
slits of each pixel located in a same row have equal slit widths; inter-slit distances between the slits of each pixel in the same row and other slits which are respectively adjacent to the slits of the respective pixel are equal; slit widths of first slits associated with pixels that are located in a first row close to the second side are greater than slit widths of second slits associated with pixels that are located in a second row close to the first side; and inter-slit distances between the first slits located in the first row close to the second side and other slits that are respectively adjacent to the first slits are greater than inter-slit distances between the second slits located in the second row close to the first side and other slits that are respectively adjacent to the second slits.

16 . The array substrate of claim 4 , wherein:

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Display Tech Co
• Boe Tech Group Co Ltd Et Al
• Beijing Boe Display Tech Co Ltd Et Al

Inventors

• Lin Lifeng
• Zhan Hongming
• Wang Yongcan

Classifications

• G02F1/133382 Primary

  Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell · CPC title

• G02F1/134309 Primary

  characterised by their geometrical arrangement · CPC title

• G02F1/133615

  Edge-illuminating devices, i.e. illuminating from the side · CPC title

• G02F1/13439

  characterised by their electrical, optical, physical properties; materials therefor; method of making · CPC title

• G02F1/133707

  Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes · CPC title