Display panel and manufacturing method therefor, drive method and display device

Patent metadata

Field	Value
Publication number	US-2017371202-A1
Application number	US-201615527503-A
Country	US
Kind code	A1
Filing date	Jan 21, 2016
Priority date	Jul 30, 2015
Publication date	Dec 28, 2017
Grant date	—

Abstract

A display panel and a manufacturing method therefor, a drive method and a display device. The display panel includes a first substrate and a second substrate which are arranged opposite to each other. The first substrate includes a first base substrate, and a plurality of first wire grid polarizers and a plurality of pixel units, which are successively located on a side of the first base substrate facing the second substrate in an array arrangement; polarization directions of two adjacent first wire grid polarizers are perpendicular to each other. The second substrate includes: a second base substrate, and a plurality of second wire grid polarizers in an array arrangement which are located on a side of the second base substrate facing the first substrate, and polarization directions of two adjacent second wire grid polarizers are perpendicular to each other.

First claim

1 . A display panel, comprising:
a first substrate and a second substrate which are arranged opposite to each other; and a liquid crystal layer located between the first substrate and the second substrate, wherein the first substrate comprises: a first base substrate, and a plurality of first wire grid polarizers and a plurality of pixel units, which are successively located on a side of the first base substrate facing the second substrate in an array arrangement; each of the plurality of pixel units comprises at least three sub-pixel units; each of the plurality of first wire grid polarizers corresponds to one sub-pixel unit, polarization directions of two adjacent first wire grid polarizers are perpendicular to each other; or each of the plurality of first wire grid polarizers corresponds to one pixel unit, polarization directions of two adjacent first wire grid polarizers are perpendicular to each other; and the second substrate comprises: a second base substrate, and a plurality of second wire grid polarizers in an array arrangement which are located on a side of the second base substrate facing the first substrate, each of the plurality of second wire grid polarizers corresponds to one first wire grid polarizer, and polarization directions of two adjacent second wire grid polarizers are perpendicular to each other.

2 . The display panel according to claim 1 , wherein the first substrate comprises a plurality of gate lines and a plurality of data lines crossing each other and located on the first wire grid polarizers, wherein:
each row of the data lines is alternately connected to sub-pixel units in a previous row and sub-pixel units in a next row with respect to the data line, and each column of the gate lines is connected to sub-pixel unit in this column; or each row of the data lines is alternately connected to pixel units in a previous row and pixel units in a next row with respect to the data line, and each column of the gate lines is connected to sub-pixel unit in this column.

3 . The display panel according to claim 2 , wherein the first substrate comprises a plurality of first alignment units in an array arrangement which are located on the gate lines, the data lines and the pixel units, each of the plurality of first alignment units corresponds to one first wire grid polarizer, and alignment directions of two adjacent first alignment units are perpendicular to each other; and
the second substrate comprises a plurality of second alignment units in an array arrangement which are located on the second wire grid polarizer, each of the plurality of second alignment units corresponds to one first alignment unit, and alignment directions of two adjacent second alignment units are perpendicular.

4 . The display panel according to claim 3 , wherein the second wire grid polarizers and the first wire grid polarizers arranged correspondingly to each other have the same polarization directions, the first substrate further comprises pixel electrodes which are located between the first wire grid polarizers and the first alignment units, the second substrate further comprises a common electrode which are located between the second wire grid polarizers and the second alignment units; or
the second wire grid polarizers and the first wire grid polarizers arranged correspondingly to each other have perpendicular polarization directions, the first substrate further comprises pixel electrodes and common electrodes, which are insulated from each other and are located between the first wire grid polarizers and the first alignment units; or the first substrate comprises pixel electrodes and common electrodes, which are arranged at interval on a same layer and are located between the first wire grid polarizers and the first alignment units.

5 . The display panel according to claim 4 , wherein in a case where the second wire grid polarizers and the first wire grid polarizers arranged correspondingly to each other have the same polarization directions, an alignment direction of the second alignment units and an alignment direction of the first alignment units are perpendicular to each other; and
in a case where the second wire grid polarizers and the first wire grid polarizers arranged correspondingly to each other have perpendicular polarization directions, the alignment direction of the second alignment units and the alignment direction of the first alignment units are the same.

6 . The display panel according to claim 5 , wherein materials of the first alignment units and the second alignment units are photosensitive materials which are aligned by light.

7 . A display device, comprising the display panel according to claim 1 .

8 . A method for manufacturing a display panel, comprising:
manufacturing a plurality of first wire grid polarizers in an array arrangement on a first base substrate; manufacturing a plurality of pixel units in an array arrangement, a plurality of gate lines and a plurality of data lines crossing each other on the first base substrate by a patterning process, wherein each of the plurality of pixel units comprises at least three sub-pixel units, each of the plurality of first wire grid polarizers corresponds to one sub-pixel unit, and polarization directions of two adjacent first wire grid polarizers are perpendicular to each other; or each of the plurality of first wire grid polarizers corresponds to one pixel unit, and polarization directions of two adjacent first wire grid polarizers are perpendicular to each other; manufacturing a plurality of second wire grid polarizers in an array arrangement on a second base substrate, wherein each of the plurality of second wire grid polarizers corresponds to one first wire grid polarizer, and polarization directions of two adjacent second wire grid polarizers are perpendicular to each other; and assembling the first base substrate and the second base substrate to form a cell, and injecting a liquid crystal between the first base substrate and the second base substrate.

9 . The method according to claim 8 , wherein manufacturing of a plurality of first wire grid polarizers in an array arrangement on the first base substrate comprises:
imprinting metal nano particles on the first base substrate by a nano imprint technology to form a plurality of first wire grid polarizers in an array arrangement; or depositing a metal layer on the first base substrate, and forming a plurality of first wire grid polarizers in an array arrangement by a patterning process; and manufacturing of a plurality of second wire grid polarizers in an array arrangement on the second base substrate comprises: imprinting metal nano particles on the second base substrate by a nano imprint technology to form a plurality of second wire grid polarizers in an array arrangement; or depositing a metal layer on the second base substrate, and forming a plurality of second wire grid polarizers in an array arrangement by a patterning process.

10 . A method for driving the display panel according to claim 1 , the drive method comprises:
inputting a first image signal or a second image signal to first display units; and inputting the second image signal or the first image signal to second display units; wherein the first display units are sub-pixel units or pixel units corresponding to the first wire grid polarizers with a same polarization direction; the second display units are sub-pixel units or pixel units which are different from the first display units; and the first image signal and the second image signal are preset image signals.

11 . The drive method according to claim 10 , further comprising:
driving gate lines each connected to one column sub-pixel unit column

Assignees

• Boe Technology Group Co Ltd

Inventors

• He Xiaolong
• Du Jianhua

Classifications

• G02F1/133753

  with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle · CPC title

• G02F1/1333

  Constructional arrangements; {Manufacturing methods}(G02F1/135, G02F1/136 take precedence) · CPC title

• G02F1/133528 Primary

  Polarisers · CPC title

• G02F1/133788

  by light irradiation, e.g. linearly polarised light photo-polymerisation · CPC title

• G02B30/25

  using polarisation techniques · CPC title