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Method and apparatus for driving double-selection diode liquid crystal display

A driving method and display technology, applied to static indicators, instruments, etc., can solve problems such as flickering and deviation of liquid crystal displays

Inactive Publication Date: 2009-06-24
NOVATEK MICROELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, please refer to image 3 The selection lines SAn and SBn, the data voltage Vdata applied to the data line Di and the voltage value Vlc stored in the liquid crystal load capacitor 130, the equivalent resistance 140 generated due to the difference in the manufacturing process, and the predetermined data voltage Vdata There is a deviation from the voltage value Vlc stored in the liquid crystal load capacitor 130
This kind of pixel voltage drive with asymmetric positive and negative polarity will cause the flicker phenomenon of the liquid crystal display (Flicker)

Method used

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  • Method and apparatus for driving double-selection diode liquid crystal display
  • Method and apparatus for driving double-selection diode liquid crystal display
  • Method and apparatus for driving double-selection diode liquid crystal display

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Embodiment Construction

[0044] The present invention proposes a driving method suitable for a matrix driving display, wherein the matrix driving display is composed of a plurality of pixels arranged in a matrix, and each pixel is composed of a first selection line and a first selection line. The drive is selected by the two selection lines, and the displayed data is transmitted by a data line.

[0045] This driving method includes that when the polarity of the data voltage applied to the data line is updated every frame, the voltage applied to the first selection line and the voltage applied to the second selection line can alternately change the polarity, The polarity of the voltage applied to the first selection line is complementary to that of the voltage applied to the second selection line. The way to change the polarity alternately is to switch the polarity of the applied voltage according to a predetermined rule or randomly. In one embodiment, the predetermined rule is to switch the polarity ...

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Abstract

A dual-selection display driving method and device. That is, in the pixel structure, the driving method for selecting each pixel is controlled by two horizontal selection signals, and the polarity of a selection signal can be alternately changed at different frame times. This method can balance the traditional positive and negative polarity asymmetrical pixel voltage and eliminate the flicker phenomenon.

Description

technical field [0001] The present invention relates to a method and device for driving a display, and in particular to a method and device for driving a display by using double selection. Background technique [0002] The display principle of the liquid crystal display is to use the electric field to control the liquid crystal molecules to achieve the effect of light transmission or light shielding. Wherein, each pixel is achieved by using active components such as thin-film transistors (transistors are transistors, hereinafter referred to as transistors) (Thin-Film Transistor, "TFT") or field-effect transistors (FieldEffect Transistor, "FET"). The action of the switch. When the input scanning signal makes the active element in the selected state (on), the signal to be displayed will be sent to the pixel through the active element. Conversely, if it is in the non-selected state (off), the display signal is stored and held on each pixel, so that each pixel has a memory act...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G02F1/133
Inventor 邓永佳高建贤
Owner NOVATEK MICROELECTRONICS CORP