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Display panel, control method and display device

A display panel and viewing angle control technology, which is applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems of complicated regional dimming technology and the inability to switch between wide and narrow viewing angles, and achieve the effect of increasing contrast, simple structure, and high practicability

Active Publication Date: 2022-03-25
KUSN INFOVISION OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the disadvantages and deficiencies in the prior art, the object of the present invention is to provide a display panel, a control method and a display device, so as to solve the complexity of the regional dimming technology in the prior art and meet the requirements of the regional dimming technology. The problem of not being able to switch between wide and narrow viewing angles

Method used

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  • Display panel, control method and display device
  • Display panel, control method and display device
  • Display panel, control method and display device

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Embodiment 1

[0041] figure 1is a schematic plan view of the second substrate in Embodiment 1 of the present invention, figure 2 is a schematic plan view of the fourth substrate in Embodiment 1 of the present invention, image 3 It is a structural schematic diagram of the display panel in Embodiment 1 of the present invention when the local dimming mode is off and the viewing angle is wide, Figure 4 It is one of the structural schematic diagrams of the display panel in Embodiment 1 of the present invention when the local dimming mode is turned on and the viewing angle is wide. Figure 5 It is the second structural diagram of the display panel in the first embodiment of the present invention when the local dimming mode is turned on and the viewing angle is wide, Figure 6 It is a structural schematic diagram of the display panel in Embodiment 1 of the present invention when the local dimming mode is turned off and the viewing angle is narrow, Figure 7 It is a structural schematic diagr...

Embodiment 2

[0052] Such as Figure 8 As shown, the display panel provided by Embodiment 2 of the present invention is the same as Embodiment 1 ( Figure 1 to Figure 7 ) are basically the same display panel, the difference is that in this embodiment, the auxiliary electrode 42 is a planar electrode corresponding to a column of viewing angle control electrodes 55, and the first common electrode 52 is corresponding to multiple columns of first pixel electrodes 54 The first pixel electrode 54 and the first common electrode 52 are located in different layers. That is, the auxiliary electrode 42 and the first common electrode 52 are not planar electrodes arranged on the entire surface, but strip-shaped electrodes corresponding to the auxiliary electrode 42 and a row of viewing angle control electrodes 55, and there is no first pixel electrode 54 in the area of ​​the first common electrode 54. The electrodes 52 are strip-shaped electrodes corresponding to multiple rows of first pixel electrodes...

Embodiment 3

[0056] Such as Figure 9 and Figure 10 As shown, the display panel provided by Embodiment 3 of the present invention is the same as Embodiment 1 ( Figure 1 to Figure 7 ) are basically the same display panel, the difference is that in this embodiment, each viewing angle control electrode 55 corresponds to a second pixel electrode 24, that is, each viewing angle control electrode 55 corresponds to a sub-pixel, and on the fourth substrate 50 There are also a plurality of touch wires 504 parallel to the first data line 502, and the viewing angle control electrode 55 is electrically connected to the first scanning line 501 and the first data line 502 adjacent to the first thin film transistor 503 through the first thin film transistor 503. The first data lines 502 and the touch control lines 504 are arranged alternately.

[0057] Compared with the first embodiment, the distribution of the viewing angle control electrode 55 and the second pixel electrode 24 on the fourth substra...

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Abstract

The invention discloses a display panel, comprising a first liquid crystal and a second liquid crystal cell, the first liquid crystal cell includes a first substrate, a second substrate and a first liquid crystal layer, the second liquid crystal cell includes a third substrate, a fourth substrate and For the second liquid crystal layer, the first substrate is provided with a first polarizer, the second substrate or the third substrate is provided with a second polarizer whose polarization direction is perpendicular to the first polarizer, and the fourth substrate is provided with a polarization direction perpendicular to the first polarizer. The second polarizer is parallel to the third polarizer, and the fourth substrate is provided with a planar first common electrode, a first pixel electrode, and a viewing angle control electrode for controlling the viewing angle, the first pixel electrode is a comb electrode, and the viewing angle control electrode is a planar electrode. shaped electrodes, the third substrate is provided with an auxiliary electrode matched with the viewing angle control electrode, and the second liquid crystal layer adopts positive liquid crystal. The invention can realize regional dimming and improve contrast, and can also realize viewing angle switching when realizing regional dimming. The invention also discloses a control method and a display device.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a display panel, a control method and a display device. Background technique [0002] Energy saving and image quality improvement have always been the areas of constant pursuit of innovation in the color TV industry. With the popularity of LCD TVs, Local Dimming technology (Local Dimming) is one of the best technologies that combines energy saving and image quality improvement. The display part of the LCD TV mainly includes a backlight source and a Liquid Crystal Display Panel (LCD for short), and the backlight source of the LCD TV is the largest part of the energy consumption of the whole machine. Adjusting the brightness of the backlight in various ways can achieve energy saving and picture quality. quality improvement. Existing backlights include side-type backlights and direct-type backlights. Among them, side-type backlights can adjust the brightness of LED l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13G02F1/1343G02F1/1335
CPCG02F1/1323G02F1/134309G02F1/133528
Inventor 钟德镇姜丽梅沈家军
Owner KUSN INFOVISION OPTOELECTRONICS