Liquid Crystal Grating Substrate, Liquid Crystal Grating and Stereoscopic Display Device

Patent metadata

Field	Value
Publication number	US-2016291334-A1
Application number	US-201414437068-A
Country	US
Kind code	A1
Filing date	Oct 28, 2014
Priority date	Mar 28, 2014
Publication date	Oct 6, 2016
Grant date	—

Abstract

The present invention provides a liquid crystal grating substrate, a liquid crystal grating and a stereoscopic display device The liquid crystal grating substrate, the liquid crystal grating and the stereoscopic display device provided in the present invention can control the voltages of the electrode strips respectively, thereby not only improving the control precision of the liquid crystal grating, but also ensuring diversified control forms to meet various adjustment requirements for the width of the light transmissive area or non-light transmissive area of the liquid crystal grating; meanwhile, the liquid crystal grating is easy to drive and the sizes of the light transmissive areas can be controlled, thus the circuit design difficulty and the production cost are reduced, and the 3D crosstalk problem can be solved.

First claim

1 - 18 . (canceled)

19 . A liquid crystal grating substrate, comprising a driving area used for forming a grating, wherein the liquid crystal grating substrate is provided with a first electrode structure, the first electrode structure comprises at least one electrode strip, and each electrode strip comprises:
a plurality of connecting parts arranged outside one side of the driving area, a projection part penetrating through the driving area is arranged between every two adjacent connecting parts, and each projection part is provided with two mutually parallel driving parts arranged in the driving area; the driving parts of all the projection parts are mutually parallel; one of the ends of each of the two driving parts in each projection part is connected with one end of a connecting part adjacent thereto; wherein one end of each electrode strip is a connecting end, the connecting end is used for connecting a driving circuit, and the driving circuit is used for providing a driving voltage for the electrode strip.

20 . The liquid crystal grating substrate of claim 19 , wherein the first electrode structure comprises a plurality of electrode strips, and the projection parts of the plurality of electrode strips are arranged towards the projection directions of the projection parts according to such a sequence that the distances between two driving parts of the projection parts increase sequentially.

21 . The liquid crystal grating substrate of claim 20 , wherein the distances between the projection parts of every two adjacent electrode strips in the plurality of electrode strips are equal.

22 . The liquid crystal grating substrate of claim 20 , wherein the distances between the center lines of the adjacent projection parts of the plurality of electrode strips are equal.

23 . The liquid crystal grating substrate of claim 19 , wherein the connecting parts of all the electrode strips are arranged on one side of the driving area, or
connecting parts of a part of the electrode strips are arranged at one side of the driving area, and connecting parts of the rest of the electrode strips are arranged at the other side of the driving area opposite to the one side.

24 . The liquid crystal grating substrate of claim 19 , wherein the driving circuit configures the voltages of the electrode strips respectively.

25 . A liquid crystal grating, comprising a first substrate and a second substrate, which are arranged oppositely, and a liquid crystal layer arranged between the first substrate and the second substrate, wherein the first substrate is a liquid crystal grating substrate, and the liquid crystal grating substrate comprising a driving area used for forming a grating, wherein the liquid crystal grating substrate is provided with a first electrode structure, the first electrode structure comprises at least one electrode strip, and each electrode strip comprises: a plurality of connecting parts arranged outside one side of the driving area, a projection part penetrating through the driving area is arranged between every two adjacent connecting parts, and each projection part is provided with two mutually parallel driving parts arranged in the driving area; the driving parts of all the projection parts are mutually parallel; one of the ends of each of the two driving parts in each projection part is connected with one end of a connecting part adjacent thereto; wherein one end of each electrode strip is a connecting end, the connecting end is used for connecting a driving circuit, and the driving circuit is used for providing a driving voltage for the electrode strip; and
the second substrate comprises a second electrode structure, and an electric field is generated between the second electrode structure and the first electrode structure of the first substrate to drive liquid crystal molecules in the liquid crystal layer to deflect.

26 . The liquid crystal grating of claim 25 , wherein the first electrode structure comprises a plurality of electrode strips, and the projection parts of the plurality of electrode strips are arranged towards the projection directions of the projection parts according to such a sequence that the distances between two driving parts of the projection parts increase sequentially.

27 . The liquid crystal grating of claim 26 , wherein the distances between the projection parts of every two adjacent electrode strips in the plurality of electrode strips are equal.

28 . The liquid crystal grating of claim 26 , wherein the distances between the center lines of the adjacent projection parts of the plurality of electrode strips are equal.

29 . The liquid crystal grating of claim 25 , wherein the connecting parts of all the electrode strips are arranged on one side of the driving area, or
connecting parts of a part of the electrode strips are arranged at one side of the driving area, and connecting parts of the rest of the electrode strips are arranged at the other side of the driving area opposite to the one side.

30 . The liquid crystal grating of claim 35 , wherein the driving circuit configures the voltages of the electrode strips respectively.

31 . A stereoscopic display device, comprising a display panel, wherein a liquid crystal grating is arranged outside the light output surface of the display panel, and
the liquid crystal grating comprising a first substrate and a second substrate, which are arranged oppositely, and a liquid crystal layer arranged between the first substrate and the second substrate, wherein the first substrate is a liquid crystal grating substrate, and the liquid crystal grating substrate comprising a driving area used for forming a grating, wherein the liquid crystal grating substrate is provided with a first electrode structure, the first electrode structure comprises at least one electrode strip, and each electrode strip comprises: a plurality of connecting parts arranged outside one side of the driving area, a projection part penetrating through the driving area is arranged between every two adjacent connecting parts, and each projection part is provided with two mutually parallel driving parts arranged in the driving area; the driving parts of all the projection parts are mutually parallel; one of the ends of each of the two driving parts in each projection part is connected with one end of a connecting part adjacent thereto; wherein one end of each electrode strip is a connecting end, the connecting end is used for connecting a driving circuit, and the driving circuit is used for providing a driving voltage for the electrode strip; and the second substrate comprises a second electrode structure, and an electric field is generated between the second electrode structure and the first electrode structure of the first substrate to drive liquid crystal molecules in the liquid crystal layer to deflect.

32 . The stereoscopic display device of claim 31 , wherein the first electrode structure comprises a plurality of electrode strips, and the projection parts of the plurality of electrode strips are arranged towards the projection directions of the projection parts according to such a sequence that the distances between two driving parts of the projection parts increase sequentially.

33 . The stereoscopic display device of claim 32 , wherein the distances between the projection parts of every two adjacent electrode strips in the plurality of electrode strips are equal.

34 . The stereoscopic display device of claim 32 , wherein the distances between the center lines of the adjacent projection parts of the plurality of electrode strips are equal.

Assignees

• Boe Technology Group Co Ltd

Inventors

• Gu Yaohui

Classifications

• G02F1/134309

  characterised by their geometrical arrangement · CPC title

• G02F1/292

  by controlled diffraction or phased-array beam steering (controlled diffraction for optical switching G02F1/31) · CPC title

• G02F1/13452

  Conductors connecting driver circuitry and terminals of panels · CPC title

• G02B30/27 Primary

  involving lenticular arrays · CPC title

• G02F1/13439

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