Display Panel Source-Line Layout for Higher Opening Rate

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Solution Overview

Problem

The low opening rate in display panels due to the placement of Demux in the display area and the use of long connection lines that occupy a larger area in the pixel unit.

Innovation Solution

A display panel design with pixel repeating units and source lines connected through transistors, where each sub-pixel column is connected to adjacent source lines, reducing the length of connection paths and minimizing area occupation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If Demux is moved from non-display area to display area to reduce frame size, then the frame of display panel is reduced, but connection lines become excessively long and occupy larger area, resulting in lower opening rate

Engineering Contradiction:

Improveframe areaVSAvoidconnection line area

Core Design Contradiction:

Area of stationary objectVSArea of moving object

Solution Approach 1:

The pixel units are divided into different types (first pixel units with even row numbers and second pixel units with odd row numbers) with different connection patterns. This segmentation allows each sub-pixel column to connect to adjacent source lines, avoiding long spanning connections and reducing the area occupied by connection lines in the display region.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different connection patterns are applied to different regions (even row pixel units vs. odd row pixel units) based on their local requirements. This local optimization ensures that each sub-pixel column connects to the nearest source line, minimizing connection line length and occupied area while maintaining overall display functionality.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If connection lines span more than one pixel unit to connect sub-pixels to source lines, then Demux can be placed in display area, but the connection lines occupy larger area in pixel unit, resulting in lower opening rate

Engineering Contradiction:

ImproveDemux placement flexibilityVSAvoidconnection line area

Core Design Contradiction:

Adaptability or versatilityVSArea of moving object

Solution Approach 1:

The display panel is segmented into alternating pixel unit types that connect to different source lines. This segmentation eliminates the need for long spanning connection lines, as each sub-pixel column connects only to adjacent source lines within its own pixel unit, thereby reducing connection line area and improving opening rate while maintaining Demux placement flexibility.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of having all pixel units connect to the same source line pattern, the invention inverts the connection pattern for alternating pixel units. Second pixel units (odd rows) connect to different source lines than first pixel units (even rows), which shortens connection paths and reduces the area occupied by connection lines.

Inventive Principle:

Principle #13The other way round (Inversion)

Data Source

PatentUS20250347964A1Display panel and electronic terminal

Publication Date: 2025.11.13 WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD

AI summary

Disclosed are a display panel and an electronic terminal, wherein each of pixel repeating units includes three sub-pixel columns arranged in a row direction, each of the sub-pixel columns includes a plurality of sub-pixels arranged in a column direction, one of source lines, disposed between a first pixel repeating unit and a second pixel repeating unit adjacent to the first pixel repeating unit, is connected to a first sub-pixel column and a third sub-pixel column of the second pixel repeating unit, and a second sub-pixel column of the first pixel repeating unit, respectively through first transistors, third transistors, and second transistors.