Liquid crystal display device
The liquid crystal display device adjusts gradation values for source signals using auxiliary wiring to prevent display quality degradation from source bus line repairs, ensuring consistent luminance and eliminating dark lines.
JP2026084468APending Publication Date: 2026-05-21SHARP DISPLAY TECHNOLOGY CORP
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Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- SHARP DISPLAY TECHNOLOGY CORP
- Filing Date
- 2024-11-11
- Publication Date
- 2026-05-21
AI Technical Summary
Technical Problem
In high-resolution liquid crystal displays, repairing a broken source bus line using backup wiring can degrade display quality, particularly manifesting as dark lines in horizontal stripe patterns.
Method used
A liquid crystal display device with a control circuit that adjusts gradation values for source signals supplied via auxiliary wiring, ensuring they fall within specific ranges to maintain display quality, and includes a correction circuit to modify gradation values based on the position of the disconnection and original values.
Benefits of technology
The solution effectively suppresses the deterioration in display quality by ensuring that source signals reach the target voltage, eliminating dark lines and maintaining consistent luminance across the display.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026084468000001_ABST
Abstract
In a relatively high-resolution liquid crystal display device, when a broken source bus line is repaired, the present invention provides a liquid crystal display device in which, for example, a horizontal stripe pattern of 0 grayscale and intermediate grayscale is displayed, and the dark lines along the source bus line are difficult to see. [Solution] The liquid crystal display device 100 is configured such that the control circuit 150 adjusts the gradation values for generating source signals supplied via the auxiliary wiring EW to the source bus line SB electrically connected to the auxiliary wiring EW to be gradation values that do not fall below a first gradation value which is greater than the lowest gradation value, and / or adjusts them to be gradation values that do not exceed a second gradation value which is less than the highest gradation value.
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