Display driving circuit, display driving method, and liquid crystal display device

A display drive and circuit technology, applied in the field of display drive circuits and liquid crystal display devices, can solve problems such as the inability to meet the needs of customers

Active Publication Date: 2021-09-14
KUSN INFOVISION OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regarding the anti-peeping effect of existing display modules, only the HVA width can be switched or the PDLC width can be switched. There is no HVA-compatible PDLC switchable display module in the prior art, which cannot meet the needs of customers in different scenarios.

Method used

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  • Display driving circuit, display driving method, and liquid crystal display device
  • Display driving circuit, display driving method, and liquid crystal display device
  • Display driving circuit, display driving method, and liquid crystal display device

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Embodiment Construction

[0053] Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings. In the various figures, identical elements are indicated with similar reference numerals. For the sake of clarity, various parts in the drawings have not been drawn to scale. Also, some well-known parts may not be shown in the drawings.

[0054] In the following, many specific details of the present invention are described, such as device structures, materials, dimensions, processing techniques and techniques, for a clearer understanding of the present invention. However, the invention may be practiced without these specific details, as will be understood by those skilled in the art.

[0055] Embodiments of the present invention will be specifically described below with reference to the accompanying drawings.

[0056] figure 1 Showing the display driving circuit 100 of the first embodiment of the present invention, including:

[0057] The control module 11...

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Abstract

The invention discloses a display driving circuit, a display driving method and a liquid crystal display device. The display driving circuit includes: a control module for receiving a control signal, and controlling the level states of a first viewing angle signal and a second viewing angle signal according to the control signal; A switching module, used to receive the first viewing angle signal, and drive the display panel to switch to the first narrow viewing angle mode when the first viewing angle signal is in the narrow viewing angle level state; the second switching module is used to receive the second viewing angle signal, and When the second viewing angle signal is in the narrow viewing angle level state, the display panel is driven to switch to the second narrow viewing angle mode, wherein the first viewing angle signal and the second viewing angle signal are not in the narrow viewing angle level state at the same time, and are not in the narrow viewing angle level state at the same time. In the flat state, the display panel is driven to switch to a wide viewing angle mode. The above-mentioned display driving circuit is compatible with the driving of different kinds of wide and narrow viewing angle display modes, and can satisfy HVA-compatible PDLC switching of the display module.

Description

technical field [0001] The present invention relates to the technical field of liquid crystal display, and more specifically, to a display driving circuit, a display driving method and a liquid crystal display device. Background technique [0002] As people's requirements for anti-peeping of liquid crystal display devices increase, liquid crystal display devices with switchable wide and narrow viewing angles emerge as the times require. At present, technologies for switching between wide and narrow viewing angles mainly include HVA (Hybird Viewing Angle, hybrid viewing angle) switching technology and PDLC (Polymer Dispersed Liquid Crystal, polymer dispersed liquid crystal film) switching technology. [0003] HVA switching technology is to change the image contrast by controlling the tilt angle of liquid crystal molecules relative to the liquid crystal panel, so as to realize the adjustment of viewing angle. In this technology, even in the narrow viewing angle mode, the side ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
CPCG09G3/36
Inventor 王晴马录俊陶腾
Owner KUSN INFOVISION OPTOELECTRONICS
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