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Touch liquid crystal lens and its working method, stereoscopic display device

A liquid crystal lens and touch technology, applied in stereoscopic systems, instruments, computing, etc., can solve the problems of increasing the complexity of display devices, inconvenient portability, and reducing user experience, so as to achieve good naked-eye 3D display effects and avoid interference or shielding effect, mitigation or shielding effect

Active Publication Date: 2019-08-06
SUPERD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of two types of panels increases the complexity of the display device, causing the display device to be bulky and inconvenient to carry.
At the same time, since there may be optical or electrical interference between the grating panel and the touch panel, this will greatly affect the display effect and reduce the user experience.

Method used

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  • Touch liquid crystal lens and its working method, stereoscopic display device
  • Touch liquid crystal lens and its working method, stereoscopic display device
  • Touch liquid crystal lens and its working method, stereoscopic display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] figure 1 In the shown structure, a mutual capacitance is formed between the first electrode layer 214 and the touch electrodes (the touch electrodes include the touch sensing electrodes 222 , the touch driving electrodes 232 and the bridge electrodes 212 ). The inventors of the present application found by analyzing the principle of mutual capacitance and through specific experimental tests, figure 1 In the shown structure, the distance between the first electrode layer 214 and the touch electrodes is usually set at about 2-3 μm, and the distance is usually set too small, which will cause interference to the touch signal, cause a shielding effect, and result in a touch effect. poor.

[0054] For example, for a touch liquid crystal lens in the above distance range, a result of the data test related to the touch function is shown in Table 1 and Table 2 below, where Table 1 represents each touch detection point corresponding to the row and column The original value of th...

Embodiment 2

[0076] In this embodiment, in order to avoid the interference of the entire surface of indium tin oxide (ITO) on the touch circuit, the figure 1 The first electrode (that is, the common electrode of the liquid crystal lens) is canceled, and the touch circuit is periodically time-division multiplexed, so that the touch circuit can not only play the role of touch detection, but also play the role of the first electrode role. Thus, the interference of the first electrode (lens common electrode) on the touch circuit can be completely avoided, and the touch function can be improved.

[0077]Specifically, in this embodiment, a certain period of time in a cycle of the touch circuit is set as the touch time, and other periods are set as the liquid crystal driving time. For example, if the frequency of the touch liquid crystal lens is 60 Hz, about 4.2 ms can be used for touch scanning, and the remaining about 12.47 ms can not be scanned, which is only used for liquid crystal driving o...

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Abstract

The invention provides a touch-control liquid crystal lens, a working method thereof, and a stereoscopic display device. Through canceling a first electrode (common electrode) at a first substrate side or increasing the thickness of an insulating layer between the first electrode at the first substrate side and a touch control circuit layer, the method can alleviate or remove the interference / shielding caused by the first electrode to a touch control signal, and can improve a touch control function of the touch-control liquid crystal lens supporting a naked-eye 3D function.

Description

technical field [0001] The invention relates to the technical field of stereoscopic display, in particular to a touch liquid crystal lens, a working method thereof, and a stereoscopic display device. Background technique [0002] With the advancement of science and technology, the use of 3D stereoscopic display technology in real life is becoming more and more common. 3D stereoscopic display technology is divided into two types: glasses-free 3D and non-glasses-free 3D. Non-glasses-free 3D technology usually refers to the 3D image technology obtained through 3D glasses. Glasses-free 3D does not need to wear other tools, and the stereoscopic display technology that can obtain 3D images through the eyes of the observer. [0003] Glasses-free 3D technology is currently mainly divided into barrier type, lenticular lens type and pointing light source type, because lenticular lens type has little influence on light intensity weakening, and has the best development prospect because...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/22G02F1/29G02F1/1333H04N13/305G06F3/041
CPCG02B30/27G02F1/13338G02F1/29G06F3/0412H04N13/305
Inventor 肖杰宫晓达
Owner SUPERD CO LTD
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