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Common voltage generating circuit and display panel

A common voltage, generating circuit technology, used in static indicators, instruments, etc., can solve the problems of complex control and low voltage difference accuracy.

Active Publication Date: 2019-03-26
HKC CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, a dual-common-electrode solution has been proposed, that is, by separately adjusting the voltages of the common electrodes of the liquid crystal capacitor and the common electrode of the storage capacitor to ensure a fixed voltage difference, but the accuracy of the voltage difference obtained by this control method Not high, and complicated to control

Method used

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  • Common voltage generating circuit and display panel
  • Common voltage generating circuit and display panel
  • Common voltage generating circuit and display panel

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Embodiment Construction

[0039] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. A preferred embodiment of the invention is shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0041] In add...

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Abstract

The invention relates to a common voltage generating circuit and a display panel. The common voltage generating circuit includes a first output module configured to set the data of a first common voltage and output a first common voltage; and a second output module configured to output a second common voltage according to the set data of the first common voltage and a preset voltage difference. The present invention effectively solves the problem of complex control caused by a condition that a conventional common voltage generating circuit separately adjusts two common voltages so that the twocommon voltages maintain a fixed difference.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a common circuit generating circuit and a display panel. Background technique [0002] Usually, a liquid crystal display panel includes a liquid crystal capacitor and a storage capacitor. The common electrode of the liquid crystal capacitor and the common electrode of the storage capacitor are connected to a common voltage generating circuit. Different angles of deflection make the transmitted light different, thus producing different gray scales and realizing the display of the desired screen; the common voltage received by the storage capacitor is to charge the storage capacitor to prevent the voltage of the liquid crystal capacitor from failing when the screen data is updated next time. To meet the required screen display voltage, therefore, the common voltage of the common electrode of the liquid crystal capacitor and the common electrode of the storage capacitor needs to ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/36
Inventor 郭东胜
Owner HKC CORP LTD
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