Grating adjusting apparatus and 3D display apparatus

Patent metadata

Field	Value
Publication number	US-12130452-B2
Application number	US-202318283953-A
Country	US
Kind code	B2
Filing date	Jan 3, 2023
Priority date	Jan 26, 2022
Publication date	Oct 29, 2024
Grant date	Oct 29, 2024

Abstract

A grating adjustment apparatus includes a first electrode layer, a second electrode layer and a first substrate and a second substrate that are opposite to each other; the grating adjustment apparatus further includes a plurality of first driving lines, a plurality of second driving lines and a plurality of grating units arranged in the first direction, and is configured as: when the grating adjustment apparatus is powered on, the grating unit is capable of forming a light transmission unit and a shading unit, and opening positions and/or opening ratios of the grating unit are adjustable; and the plurality of grating units are divided into at least one group; for the grating units in the same group, at least two of the first sub-electrodes are electrically connected to different first driving lines, and at least two of the second sub-electrodes are electrically connected to different second driving lines.

First claim

The invention claimed is:

1. A grating adjustment apparatus, applied to a 3D display apparatus, wherein the grating adjustment apparatus comprises a first electrode layer, a second electrode layer and a first substrate and a second substrate that are opposite to each other, the first electrode layer is disposed at a side of the first substrate close to the second substrate, and the second electrode layer is disposed at a side of the second substrate close to the first substrate;
the first electrode layer comprises a first sub-electrode layer and a second sub-electrode layer that are arranged in stacked, the first sub-electrode layer comprises a plurality of first sub-electrodes arranged in a first direction, the second sub-electrode layer comprises a plurality of second sub-electrodes arranged in the first direction, orthographic projections of the first sub-electrodes on the first substrate and orthographic projections of the second sub-electrodes on the first substrate are alternately arranged;
the grating adjustment apparatus further comprises a plurality of first driving lines, a plurality of second driving lines and a plurality of grating units arranged in the first direction; each of the grating units comprises the plurality of first sub-electrodes and the plurality of second sub-electrodes, and is configured as: when the grating adjustment apparatus is powered on, the grating unit is capable of forming a light transmission unit and a shading unit, and opening positions and/or opening ratios of the grating unit are adjustable; and
for the grating units in the same group, at least two of the first sub-electrodes are electrically connected to different first driving lines, and at least two of the second sub-electrodes are electrically connected to different second driving lines;
wherein for the grating units in the same group, the first sub-electrodes are all electrically connected to different first driving lines, and the second sub-electrodes are all electrically connected to different second driving lines;
wherein in each of the grating units, the plurality of first sub-electrodes are sorted in the first direction, and the plurality of second sub-electrodes are sorted in the first direction;
for the grating units in the same group, the first sub-electrodes of a same ordinal number are electrically connected to the same first driving line, and the second sub-electrodes of a same ordinal number are electrically connected to the same second driving line;
wherein the plurality of grating units are divided into a plurality of groups;
the plurality of first driving lines are divided into a plurality of groups, a quantity of groups of the first driving lines is equal to a quantity of groups of the grating units, the first driving lines in each of the groups are electrically connected to the grating units in different groups; and
the plurality of second driving lines are divided into a plurality of groups, a quantity of groups of the second driving lines is equal to the quantity of the groups of grating units, the second driving lines in each of the groups are electrically connected to the grating units in different groups.

2. The grating adjustment apparatus according to claim 1 , wherein
a quantity of the first driving lines in each of the groups is equal to a quantity of the ordinal numbers of the first sub-electrodes of the grating units in each of the groups; and
a quantity of the second driving lines in each of the groups is equal to a quantity of the ordinal numbers of the second sub-electrodes of the grating units in each of the groups.

3. The grating adjustment apparatus according to claim 1 , wherein the grating adjustment apparatus further comprises at least one drive unit, and the first driving lines in each of the groups and the second driving lines in each of the groups are electrically connected to the at least one drive unit.

4. The grating adjustment apparatus according to claim 3 , wherein the first driving lines in each of the groups are divided into a first portion and a second portion, and the first portion and the second portion are electrically connected to different drive units; and
the second driving lines in each of the groups are divided into a third portion and a fourth portion, and the third portion and the fourth portion are electrically connected to different drive units.

5. The grating adjustment apparatus according to claim 4 , wherein an orthographic projection of the first portion on the first substrate and an orthographic projection of the second portion on the first substrate are disposed at two opposite sides of an orthographic projection of the first electrode layer on the first substrate; and
an orthographic projection of the third portion on the first substrate and an orthographic projection of the fourth portion on the first substrate are disposed at two opposite sides of the orthographic projection of the first electrode layer on the first substrate.

6. The grating adjustment apparatus according to claim 5 , wherein the first portion and the second portion are mirrored symmetrically, and the third portion and the fourth portion are mirrored symmetrically.

7. The grating adjustment apparatus according to claim 5 , wherein for the grating units in each of the groups, the first sub-electrodes of which the ordinal numbers are odd numbers are electrically connected to the first driving lines of the first portion, and the first sub-electrodes of which the ordinal numbers are even numbers are electrically connected to the first driving lines of the second portion; and
for the grating units in each of the groups, the second sub-electrodes of which the ordinal numbers are odd numbers are electrically connected to the second driving lines of the third portion, and the second sub-electrodes of which the ordinal numbers are even numbers are electrically connected to the second driving lines of the fourth portion.

8. The grating adjustment apparatus according to claim 1 , wherein the grating adjustment apparatus further comprises a grating area, and a non-grating area connected to the grating area; and
the first electrode layer and the second electrode layer are disposed in the grating area, and the plurality of first driving lines and the plurality of second driving lines are disposed in the non-grating area.

9. The grating adjustment apparatus according to claim 8 , wherein one end of each of the first sub-electrodes extends to the non-grating area and is connected to the corresponding first driving line; and
one end of each of the second sub-electrodes extends to the non-grating area and is connected to the corresponding second driving line.

10. The grating adjustment apparatus according to claim 9 , wherein in each of the grating units, the plurality of first sub-electrodes are sorted in the first direction, the plurality of second sub-electrodes are sorted in the first direction, and each of the first sub-electrodes and each of the second sub-electrodes comprise a first end and a second end that are opposite to each other, respectively; and
in each of the grating units, the first end of each of the first sub-electrodes and the second sub-electrodes of which the ordinal numbers are odd numbers extends to the non-grating area, and the second end of each of the first sub-electrodes and the second sub-electrodes of which the ordinal numbers are even numbers extends to the non-grating area.

11. The grating adjustment apparatus according to claim 1 , wherein materials of the first sub-electrodes and the second sub-electrodes comprise transparent conducting materials.

12. The grating adjustment apparatus according to claim 1 , wherein the f

Assignees

• Hefei Boe Optoelectronics Tech
• Boe Technology Group Co Ltd

Inventors

• Dong Zhao
• Zhou Ru
• Peng Xiaoqing
• Du Yun
• Li Hu
• Wang Donghui
• An Ran
• Zhang Douqing

Classifications

• G09G2354/00

  Aspects of interface with display user · CPC title

• G09G3/003

  to produce spatial visual effects · CPC title

• G06F3/013

  Eye tracking input arrangements (G06F3/015 takes precedence) · CPC title

• G02F1/13452

  Conductors connecting driver circuitry and terminals of panels · CPC title

• G02F1/134309 Primary

  characterised by their geometrical arrangement · CPC title