Display Panel Sub-Pixel Data Line Segmentation

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Solution Overview

Problem

Current liquid crystal display panels face issues with insufficient charging time and uneven charging rates for sub-pixels, particularly when displaying images like red and green or blue, due to the need to switch signals between different color sub-pixels.

Innovation Solution

The display panel design includes sub-pixel columns of the same color connected to a single data line, allowing for simultaneous charging without signal switching, combining this structure with column inversion to achieve sufficient charging times and improve display quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If one data line is electrically connected to sub-pixels of different colors in adjacent sub-pixel columns, then device complexity is reduced, but sub-pixel charging time becomes insufficient and charging uniformity deteriorates

Engineering Contradiction:
Improvedata line configurationVSAvoidsub-pixel charging time
Core Design Contradiction:
Device complexityVSDuration of action of moving object

Solution Approach 1:

The invention segments the data line configuration by color type. Each data line is dedicated to transmitting signals for a specific color sub-pixel type (red, green, or blue), rather than one data line serving multiple colors. This segmentation eliminates the need for signal switching between different colors on the same data line, ensuring sufficient charging time for each sub-pixel while maintaining reasonable device complexity through systematic organization.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention introduces color-specific data lines as intermediaries between the control circuit and sub-pixels of different colors. Each data line acts as a dedicated intermediary for its assigned color, preventing signal conflicts and ensuring that charging signals reach the intended sub-pixels without interference or timing conflicts from other color signals.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If one data line is electrically connected to sub-pixels of different colors, then device complexity is reduced, but charging uniformity deteriorates

Engineering Contradiction:
Improvedata line configurationVSAvoidcharging uniformity
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The invention segments the data line configuration by color type. Each data line is dedicated to transmitting signals for a specific color sub-pixel type (red, green, or blue), rather than one data line serving multiple colors. This segmentation eliminates the need for signal switching between different colors on the same data line, ensuring sufficient charging time for each sub-pixel while maintaining reasonable device complexity through systematic organization.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention applies homogeneity by ensuring that all sub-pixels of the same color type receive signals through data lines with identical characteristics and timing. Each color-specific data line provides uniform signal transmission conditions to all sub-pixels it serves, eliminating the charging uniformity problems that arise when a single data line must handle different color signals with different timing requirements.

Inventive Principle:
Principle #33Homogeneity

Data Source

PatentUS12198650B2Display panel and terminal device
Publication Date: 2025.01.14 GUANGZHOU CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
  • US12198650B2 patent drawing
  • US12198650B2 patent drawing
  • US12198650B2 patent drawing

AI summary

A terminal device and a display panel are provided. The display panel includes sub-pixel columns. Each of the sub-pixel columns includes sub-pixels of a same color. The sub-pixels include first sub-pixels and second sub-pixels arranged alternately. The sub-pixel columns compose pixel groups. Colors of sub-pixels in different sub-pixel columns in one same pixel group are different. A data line is disposed between two adjacent sub-pixel columns. The first sub-pixel of one of the two sub-pixel columns of a same color in two adjacent pixel groups and the second sub-pixel of another one of the two sub-pixel columns of the same color in the two adjacent pixel groups are electrically connected to one same data line.