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Optical structure, display device and working method thereof

A technology of optical structure and display device, applied in the directions of optics, nonlinear optics, static indicators, etc., can solve the problem of inability to realize switching between privacy-proof display and shared display, and achieve privacy-proof display, realize switching, and realize shared display. Effect

Active Publication Date: 2019-07-16
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing anti-peeping display technology is realized by adding a special anti-peeping film on the display panel, which can only realize anti-peeping display, but cannot switch between anti-peeping display and shared display

Method used

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  • Optical structure, display device and working method thereof
  • Optical structure, display device and working method thereof
  • Optical structure, display device and working method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] This embodiment provides an optical structure, such as figure 1 As shown, this embodiment includes:

[0043] The first electrode 5 and the second electrode 9 arranged oppositely;

[0044] a first alignment layer 6 located on the side of the first electrode 5 facing the second electrode 9;

[0045] a second alignment layer 8 located on the side of the second electrode 9 facing the first electrode 5;

[0046] Liquid crystal molecules located between the first alignment layer 6 and the second alignment layer 8;

[0047] A plurality of insulating protrusions 7 located on the side of the first alignment layer 6 facing the second alignment layer 8, the plurality of protrusions 7 are arranged at intervals and parallel to each other, and the refractive index of the protrusions 7 is the same as that of the The refractive index of the above-mentioned liquid crystal molecules is the same under the electrified state or the unenergized state;

[0048] By controlling the electric...

Embodiment 2

[0068] The embodiment of the present invention also provides a display device, such as image 3 shown, including:

[0069] Backlight 1;

[0070] display panel 3;

[0071] The above-mentioned optical structure 2 is located between the display panel 3 and the backlight 1 .

[0072] The display device can be any product or component with display function such as LCD TV, liquid crystal display, digital photo frame, mobile phone, tablet computer, etc., wherein the display device also includes a flexible circuit board, a printed circuit board and a backplane.

[0073] In this embodiment, an optical structure is provided between the display panel and the backlight source. By controlling the electrical signal applied to the electrodes of the optical structure, the optical structure can be switched between two states, the first state of which is In this case, the optical structure does not change the propagation direction of the light emitted by the backlight. In another second stat...

Embodiment 3

[0080] This embodiment provides a working method of a display device, which is applied to the above-mentioned display device, and the working method includes:

[0081] controlling the electrical signals applied to the first electrode 5 and the second electrode 9 to switch the optical structure between the first state and the second state, wherein, in the first state, the optical structure The propagation direction of the light emitted by the backlight source is not changed; in the second state, the optical structure can change the propagation direction of the light emitted by the backlight source.

[0082] Wherein, when applying electrical signals to the first electrode 5 and the second electrode 9, a com signal of 0V can be applied to one of the electrodes, and a ±Vop square wave signal can be applied to the other electrode, and the size of Vop can be adjusted, so as to realize the optical structure in switch between the first state and the second state.

[0083] In this emb...

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PUM

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Abstract

An optical structure, a display device and an operating method thereof are provided. The optical structure includes: first electrode and second electrode arranged opposite to each other; first alignment layer; second alignment layer; liquid crystal molecules arranged between first alignment layer and second alignment layer; and insulative protrusions arranged at a side of first alignment layer facing second alignment layer. The insulative protrusions are spaced apart from and arranged parallel to each other, and the protrusion has a same refractive index as the liquid crystal molecules in energized or de-energized state. Through controlling electric signals applied to first electrode and second electrode, it is able to switch the optical structure between first state where the optical structure does not change propagation direction of light entering the optical structure and second state where the optical structure is capable of changing propagation direction of light entering the optical structure.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an optical structure, a display device and a working method thereof. Background technique [0002] Liquid crystal display technology has become the mainstream display technology in the market, which can meet people's needs in terms of pixel resolution, response time, screen size, etc., but in some special display environments, people need special display modes to meet specific needs , For example, in an office environment or other private environments, people need the screen of the display screen to be visible only to themselves and not to others, that is, the anti-peep display mode; in some cases, it is necessary to share the screen of the display screen with multiple people, that is, sharing display mode. [0003] The existing anti-peeping display technology is realized by adding a special anti-peeping film on the display panel, which can only realize the anti-peeping display...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1337G02F1/133
CPCG02F1/13306G02F1/133707G02F1/1323G02F1/29G02F1/1337G02F1/133749
Inventor 李忠孝陈小川赵文卿王倩杨明
Owner BOE TECH GRP CO LTD