Display Panel Shift Register Sub-Circuit Segmentation
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Solution Overview
Problem
Designing displays with narrow bezels or no bezels poses a challenge in balancing display quality with the need to reduce bezel size, as existing methods often compromise on display quality due to the placement of driving circuits in the active region.
Innovation Solution
The display panel incorporates a display array with shift registers divided into sub-circuits, where each sub-circuit is configured in specific columns and connected through global signal lines, reducing the number of signal lines and pins, thereby simplifying design complexity and saving manufacturing costs while maintaining display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If driving circuits are disposed in the active region to reduce bezel size, then the bezel size is reduced, but the display quality deteriorates due to increased circuit area occupying the active region
Solution Approach 1:
The shift register is divided into multiple sub-circuits (first sub-circuit and second sub-circuit) that are disposed in different columns of the display array. This segmentation allows the driving circuit to occupy less area in the active region while maintaining display quality, as each sub-circuit can be independently optimized and connected through global signal lines.
2Adaptability or versatility
If multiple signal lines and pins are used to connect sub-circuits, then the connectivity is improved, but the design complexity increases and manufacturing costs increase
Solution Approach 1:
Global signal lines are used to connect multiple first sub-circuits disposed in different columns of the display array. These global signal lines serve multiple functions by providing clock signals, reset signals, and other control signals to multiple sub-circuits simultaneously, thereby reducing the overall number of signal lines and pins required while maintaining comprehensive connectivity.
Data Source
AI summary
A display panel is provided. The display panel includes a display array and a plurality of shift registers. The display array is disposed in an active region. The shift registers are disposed in the active region, and configured to drive the display panel. Each shift register is divided into a plurality of sub-circuits including a first sub-circuit and a second sub-circuit. The first sub-circuit is disposed in a first column of the display array. All first sub-circuits disposed in the first column are coupled to at least one global signal line. The second sub-circuit is disposed in a second column of the display array. The second sub-circuit disposed in the second column are serially coupled as at least one string through a plurality of jump signal lines.