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Liquid crystal display device with switchable wide-and-narrow viewing angle and driving method

A liquid crystal display device, a technology with a narrow viewing angle, which is applied to static indicators, nonlinear optics, instruments, etc., can solve problems such as uneven display of image quality, and achieve the effect of improving display image quality and solving poor image display.

Active Publication Date: 2017-10-03
KUSN INFOVISION OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a liquid crystal display device with switchable wide and narrow viewing angles and a driving method, which can realize switching between wide and narrow viewing angles in different occasions, and improve the Mura problem of uneven image quality display

Method used

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  • Liquid crystal display device with switchable wide-and-narrow viewing angle and driving method
  • Liquid crystal display device with switchable wide-and-narrow viewing angle and driving method
  • Liquid crystal display device with switchable wide-and-narrow viewing angle and driving method

Examples

Experimental program
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Effect test

no. 1 example

[0040] Please refer to Figure 3 to Figure 8 The liquid crystal display device with switchable wide and narrow viewing angles provided by the first embodiment of the present invention includes a display panel 20, and the display panel 20 includes a first substrate 21, a second substrate 22 opposite to the first substrate 21, and a second substrate located on the first substrate 21. and the liquid crystal layer 23 between the second substrate 22 . Wherein, the first substrate 21 may be a color filter substrate, and the second substrate 22 may be a thin film transistor array substrate.

[0041] The first substrate 21 is provided with a color resist layer 211 , a black matrix (BM) 212 , a flat layer 213 and a viewing angle control electrode 214 on a side facing the liquid crystal layer 23 . The color resist layer 211 is, for example, R, G, B color resists. In this embodiment, the color resistance layer 211 and the black matrix 212 are disposed on the surface of the first substr...

no. 2 example

[0087] Please refer to Figure 10 The main difference between the liquid crystal display device with switchable wide and narrow viewing angles provided by the second embodiment of the present invention and the above-mentioned first embodiment is that in this embodiment, the scan driving circuit 50 is integrated on the second substrate 22 (that is, Gate InArray, GIA ), the scanning driving circuit 50 specifically includes a plurality of scanning driving circuit units 51 (ie, GIA circuit units), and these scanning driving circuit units 51 are located in the non-display area on the same side of the display panel 20 (shown on the left side in this embodiment).

[0088] For other structures and working principles of this embodiment, reference may be made to the above-mentioned first embodiment, which will not be repeated here.

no. 3 example

[0090] Please refer to Figure 11 The main difference between the wide and narrow viewing angle switchable liquid crystal display device provided by the third embodiment of the present invention and the above-mentioned first embodiment is that in this embodiment, the scan driving circuit 50 is integrated on the second substrate 22 (ie, Gate InArray, GIA ), the scanning driving circuit 50 specifically includes a plurality of scanning driving circuit units 51 (ie, GIA circuit units), and these scanning driving circuit units 51 are located in non-display areas on opposite sides of the display panel 20 . In this embodiment, the scanning driving circuit unit 51 connected to the scanning lines 221 at odd positions is located in the non-display area on the left side of the display panel 20, and the scanning driving circuit unit 51 connected to the scanning lines 221 at even positions is located at the right side of the display panel 20. non-display area.

[0091] For other structure...

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Abstract

The invention discloses a liquid crystal display device with a switchable wide-and-narrow viewing angle and a driving method. The liquid crystal display device comprises a first substrate, a second substrate and a liquid crystal layer located between the first substrate and the second substrate, the first substrate is provided with a viewing angle control electrode, the viewing angle control electrode is used for controlling a display panel to switch between a wide viewing angle and a narrow viewing angle, and comprises multiple viewing angle control electrode stripes which are mutually insulated and isolated, each viewing angle control electrode stripe extends in the direction parallel to that of scanning lines, the second substrate is further provided with a viewing angle control signal line and multiple switch elements, the multiple viewing angle control electrode stripes are connected with the multiple scanning lines through the multiple switch elements respectively, so that each viewing angle control electrode stripe is connected with one scanning line correspondingly through one corresponding switch element, the control end of each switch element is connected with the corresponding scanning line, the first access end of each switch element is connected with the corresponding viewing angle control electrode stripe, and the second access end of each switch element is connected with the viewing angle control line.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display device and a driving method with switchable wide and narrow viewing angles. Background technique [0002] Liquid crystal display (liquid crystal dilay, LCD) has the advantages of good image quality, small size, light weight, low driving voltage, low power consumption, no radiation and relatively low manufacturing cost, and occupies a dominant position in the field of flat panel display. [0003] Currently, liquid crystal display devices are gradually developing toward wide viewing angles. For example, liquid crystal display devices using in-plane switching (IPS) or fringe field switching (FFS) modes can achieve wider viewing angles. While enjoying the visual experience brought by squinting, people also hope to effectively protect commercial secrets and personal privacy, and avoid commercial loss or embarrassment caused by leakage of screen ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1343G02F1/13G02F1/1368G02F1/133
CPCG02F1/1323G02F1/13306G02F1/134309G02F1/1368
Inventor 苏子芳姜丽梅
Owner KUSN INFOVISION OPTOELECTRONICS
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