Pixel structure, array substrate and display apparatus

Patent metadata

Field	Value
Publication number	US-10429702-B2
Application number	US-201615518346-A
Country	US
Kind code	B2
Filing date	Oct 11, 2016
Priority date	Feb 29, 2016
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

The present disclosure provides a pixel structure, an array substrate and a display apparatus, aiming at achieving good display effects in all viewing directions and improved viewing angles. The pixel structure comprises a plurality of transparent electrodes, which are arranged in columns and each transparent electrode corresponds to a subpixel. Each transparent electrode comprises at least two sub-electrode portions, and each sub-electrode portion is provided with a plurality of slits. The plurality of transparent electrodes are arranged such that: slits in substantially a same column of sub-electrode portions have at least two different extending directions to thereby substantially reduce alternating light and dark stripes from some viewing angles in the same column during display; and that slits in substantially a same row of sub-electrode portions have at least two different extending directions to thereby substantially reduce alternating light and dark stripes from some viewing angles in the same row during display.

First claim

The invention claimed is:

1. A pixel structure, comprising a plurality of transparent electrodes, arranged in columns and each corresponding to a subpixel, said pixel structure further comprising a plurality of gate lines and a plurality of data lines, wherein:
each transparent electrode comprises at least two sub-electrode portions, each provided with a plurality of slits; and
the plurality of transparent electrodes are arranged such that:
slits in substantially a same column of sub-electrode portions have at least two different extending directions to thereby substantially reduce alternating light and dark stripes from some viewing angles in the same column during display; and that
slits in substantially a same row of sub-electrode portions have at least two different extending directions to thereby substantially reduce alternating light and dark stripes from some viewing angles in the same row during display; and

wherein:
the plurality of transparent electrodes are arranged in pairs of columns, configured such that in each pair of columns, a first transparent electrode in a first column and a second transparent electrode in a second column on a same row form a corresponding pair of transparent electrodes, having a mirror symmetry along the column direction;
two gate lines running in parallel in the column direction along the axis of symmetry between the pair of electrodes, each gate line corresponding to one electrode of the pair; and
each data line takes a shape of a folded line, extending in a direction of a row and running along borders of every two staggered neighboring sub-pixels in the row.

2. The pixel structure of claim 1 , wherein the pairs of columns are configured such that:
slits in substantially a same row of sub-electrode portions in the first transparent electrode and in the second transparent electrode have at least two different extending directions.

3. The pixel structure of claim 2 , wherein every two adjacent pairs of columns of transparent electrodes are arranged in a staggered configuration.

4. The pixel structure of claim 3 , wherein in each corresponding pair of transparent electrodes, the first transparent electrode and the second transparent electrode together form a polygon, selected from a hexagon, a diamond, a pentagon, or an octagon.

5. The pixel structure of claim 4 , wherein the polygon is a hexagon, and each transparent electrode comprises two sub-electrode portions, aligned in a column, wherein slits in each sub-electrode portion extend in a same direction.

6. The pixel structure of claim 5 , wherein in each transparent electrode, slits in the two sub-electrode portions have extending directions in mirror symmetry along a direction of rows.

7. The pixel structure of claim 6 , wherein in each transparent electrode, slits in one of the two sub-electrode portions are correspondingly connected to slits in another of the two sub-electrode portions in a one-to-one relationship.

8. The pixel structure of claim 7 , wherein slits in the first transparent electrode and slits in the second transparent electrode are in mirror symmetry along a direction of columns.

9. The pixel structure of claim 8 , wherein the hexagons together form a periodic structure, configured such that any two neighboring sub-electrode portions respectively from two staggered neighboring hexagons on two adjacent columns are on a same row.

10. The pixel structure of claim 9 , wherein slits in each sub-electrode portion of each transparent electrode have an extending direction in parallel to sides of the each sub-electrode portion.

11. The pixel structure of claim 10 , wherein:
each data line takes a shape of a folded line, extending in a direction of a row and running along borders of every two staggered neighboring hexagons in the row.

12. The pixel structure of claim 11 , further comprising a plurality of thin film transistors, wherein:
each thin film transistor corresponds to a transparent electrode, wherein:
a gate electrode of the each thin film transistor is coupled to a corresponding gate line;
a source electrode of the each thin film transistor is coupled to a corresponding transparent electrode; and
a drain electrode of the each thin film transistor is coupled to a corresponding data line.

13. The pixel structure of claim 12 , wherein the plurality of transparent electrode each comprises ITO.

14. An array substrate, comprising the pixel structure according to claim 1 .

15. A display apparatus, comprising the array substrate according to claim 14 .

16. The display apparatus of claim 15 , further comprising a color film substrate, disposed over the array substrate, wherein the color film substrate comprises a plurality of color resistance blocks, corresponding to the plurality of transparent electrodes in a one-to-one relationship.

17. The display apparatus of claim 16 , wherein each color resistance block and a corresponding transparent electrode have a substantially same shape.

18. The display apparatus of claim 17 , wherein the color resistance blocks corresponding to a same column of transparent electrodes are substantially identical in color.

Assignees

• Boe Technology Group Co Ltd
• Chongqing Boe Optoelectronics Tech Co Ltd

Inventors

• Wang Rui
• Qiu Haijun
• Shang Fei
• Kim Jaikwang
• Li Shaoru
• Jiang Rikun

Classifications

• G02F1/133514

  Colour filters · CPC title

• G02F1/1368

  in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title

• G02F1/134336 Primary

  Matrix · CPC title

• G02F1/134309 Primary

  characterised by their geometrical arrangement · CPC title