Multiplexer driving method and display device

A driving method and display device technology, applied to instruments, static indicators, etc., can solve the problems of insufficient sub-pixel charging, lower ratio, and shorter liquid crystal charging time, and achieve the effect of reducing the contrast of the display screen and reducing the use

Active Publication Date: 2019-02-12
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, when the number of multiplexer switches increases, the charging time of the liquid crystal decreases, resulting in insufficient charging of some sub-pixels, resulting in a problem of reduced contrast in some or all areas of the display panel due to insufficient charging.

Method used

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  • Multiplexer driving method and display device
  • Multiplexer driving method and display device
  • Multiplexer driving method and display device

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Embodiment Construction

[0031] Embodiments of the present invention will be described below in conjunction with related drawings. In the drawings, the same reference numerals represent the same or similar elements or method flows.

[0032] see figure 1 . figure 1 It is a circuit diagram of a display device 100 according to an embodiment of the present disclosure. like figure 1 As shown, the display device 100 includes a processor 110, a plurality of multiplexers 120, a plurality of sub-pixels 130, a source driver chip 140, a plurality of data lines DL and a plurality of gate lines GL(1)-GL(n) . The multiplexer 120 is electrically coupled to the data line DL, the sub-pixels 130 and the source driver chip 140 . exist figure 1 In the illustrated embodiment, only two multiplexers 121 and 122 are shown. The multiplexer 121 controls the switches SW1-SWn and connects the data lines DL(1)-DL(n) and the sub-pixel 130, and the multiplexer 122 controls the switches SW1-SWn and connects the data lines DL(...

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Abstract

Provided is a multiplexer driving method, comprising the steps of: dividing a plurality of data lines and a plurality of sub-pixels into a plurality of groups according to the number of multiplexers,wherein each group includes a multiplexer, part of data lines of the data lines, and part of sub-pixels of the sub-pixels; calculating a transient value of each group according to a grayscale value ofa first frame picture and a grayscale value of a second frame picture; calculating liquid crystal charging time corresponding to each transient value; and determining enable time of a drive signal ofa multiplexer according to the liquid crystal charging time.

Description

technical field [0001] The disclosure document relates to a driving method and a display device, in particular to a multiplexer driving method and a display device capable of adjusting the on-time of the multiplexer according to display data. Background technique [0002] Low temperature polysilicon thin-film transistor (LTPS TFT) has the characteristics of high carrier mobility and small size, and is suitable for display panels with high resolution, narrow frame and low power consumption. At present, multiplexer switches are widely used in the industry to reduce the use of source driver ICs, which can reduce the area occupied by manufactured products and source driver ICs. However, when the number of multiplexer switches increases, the charging time of the liquid crystal decreases, resulting in insufficient charging of some sub-pixels, resulting in a problem of reduced contrast in some or all areas of the display panel due to insufficient charging. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/3648
Inventor 游锜杨智富徐凤明
Owner AU OPTRONICS CORP
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