A pre-charge method and liquid crystal display

By providing 3H charging to each pixel of the LCD screen row by row, the problem of insufficient charging rate under the dot-flip mode is solved, and the display quality is improved.

CN118197258BActive Publication Date: 2026-06-16TRULY (RENSHOU) HIGH-END DISPLAY TECH LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TRULY (RENSHOU) HIGH-END DISPLAY TECH LTD
Filing Date
2024-04-07
Publication Date
2026-06-16

AI Technical Summary

⚠Technical Problem

Existing LCD screens using a dot-flip method suffer from insufficient charging rate, resulting in reduced display quality.

⚗Method used

The 3H charging method is adopted, which includes a pre-charging of the first H unit time, a pre-charging of the second H unit time, and an actual charging of the third H unit time. The second H unit time and the third H unit time are separated by an H unit time. The gate driving timing of the pixels is provided row by row to realize pixel flipping.

🎯Benefits of technology

It effectively reduces the voltage difference during pixel charging, improves the charging rate, and thus enhances display quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a pre-charging method and a liquid crystal display screen. The method comprises the following steps: providing a liquid crystal display screen, wherein the liquid crystal display screen comprises a control unit and a timing unit, and the timing unit is used for outputting a gate driving timing sequence of the liquid crystal display screen according to a control instruction; and providing a first gate driving timing sequence to all pixels of the liquid crystal display screen by using the timing unit to perform 3H charging on the pixels to perform point flipping. The 3H charging is pre-charging in a first H unit time and a second H unit time, actual charging after a third H unit time, and the second H unit time is separated from the third H unit time by 1 H unit time. The point flipping is performed by providing 3H charging to the pixels of the liquid crystal display screen row by row, the voltage difference during the charging of the pixels is effectively reduced, the charging rate is improved, and the display quality is improved.
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