Method for Obtaining Charging Rate of Liquid Crystal Display Panel
A technology of liquid crystal display panel and charging rate, which is applied in the direction of measuring electricity, static indicators, measuring electric variables, etc., can solve the problems that the accuracy cannot be guaranteed and cannot be verified by experiments, and achieve the effect of accuracy guarantee
Active Publication Date: 2020-09-04
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology
[0012] However, this method of obtaining the liquid crystal display panel charging rate by establishing a Spice model simulation only has simulation results, the accuracy cannot be guaranteed, and it cannot be verified by experiments
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[0044] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0045] The terms "comprising" and "having" and any variations thereof appearing in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, ...
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The embodiment of the invention discloses a method for obtaining a charging rate of a liquid crystal display panel. The method comprises: a driving voltage-luminance transmittance curve of a liquid crystal display panel is obtained; a first luminance value of a picture displayed by the liquid crystal display panel in a first period is obtained, wherein the first period includes first total charging time formed by multiple first sub charging time, each data line of the liquid crystal display panel transmits a first voltage corresponding to a zero-grayscale voltage and a second voltage corresponding to a non-zero-grayscale voltage alternately within the first total charging time, and the time for transmitting the second voltage by any data line is equal to the first sub charging time each time; and according to the driving voltage-luminance transmittance curve and the first luminance value, an actual pixel voltage is obtained; and a charging rate is obtained according to a ratio value of the actual pixel voltage to the second voltage. With the method, the charging rate of a liquid crystal display panel is obtained actually.
Description
technical field [0001] The invention relates to the field of liquid crystal display technology, in particular to a method for obtaining the charging rate of a liquid crystal display panel. Background technique [0002] Existing LCD panels, see figure 1 , including a plurality of scanning lines SL extending in the lateral direction and a plurality of data lines DL extending in the longitudinal direction, the scanning lines SL and the data lines DL intersect to form a plurality of pixel units 100, and each pixel unit 100 includes The thin film transistor 110 and the pixel electrode 120 , the gate of the thin film transistor 110 is electrically connected to the corresponding scan line SL, its source is electrically connected to the corresponding data line DL, and its drain is electrically connected to the corresponding pixel electrode 120 . When the scan line SL inputs the turn-on voltage, the gate of the thin film transistor 110 is turned on, correspondingly, the data line DL...
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IPC IPC(8): G09G3/00G01R31/00
CPCG01R31/00G09G3/006
Inventor 郝思坤
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD