Display Panel Shift Register Layout for Narrow Bezels
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Solution Overview
Problem
The conventional driver circuit placement on the left and right frames of LED display panels hinders the achievement of a narrow frame design, contradicting the trend towards minimal bezels.
Innovation Solution
The driver circuit, specifically the shift register circuits, is integrated within the display area between adjacent light-emitting element rows, allowing for a more compact design that reduces the frame width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the driver circuit is located on the left frame and right frame, then the driver circuit can be easily integrated, but the frame width increases
Solution Approach 1:
The driver circuit is moved from the lateral frame areas (horizontal dimension) to the vertical space between pixel circuit rows (vertical dimension). This dimensional repositioning allows the driver circuit to occupy previously underutilized vertical spacing, thereby reducing the horizontal frame width while maintaining easy integration through standardized circuit design.
2Length of stationary object
If the driver circuit is integrated within the display area, then the frame width is reduced, but the layout complexity increases
Solution Approach 1:
The driver circuit is divided into multiple stages of shift register circuits, with each stage positioned in alternating spaces between pixel circuit rows. This segmentation distributes the circuit complexity across different vertical zones, making the layout more manageable while achieving the narrow frame objective.
Solution Approach 2:
Different regions of the display area are assigned different functions: even-numbered spaces between pixel circuit rows contain driver circuit stages, while odd-numbered spaces contain other circuit elements or are left for light-emitting elements. This localized functional assignment optimizes space utilization and simplifies the overall layout planning.
3Reliability
If shift register circuit modules are connected through traces, then the circuit functionality is maintained, but the manufacturing precision requirements increase
Solution Approach 1:
Traces serve as intermediary conductive pathways connecting adjacent shift register circuit modules. By using dedicated trace routes rather than direct module adjacency, the design maintains reliable electrical connections while providing manufacturing tolerance for alignment variations, thus reducing the precision requirements compared to direct coupling.
Data Source
AI summary
Disclosed are a display panel and a display device. The display panel includes a display area, a plurality of light-emitting elements located in the display area, and at least one driver circuit located in the display area; the plurality of light-emitting elements includes a plurality of light-emitting element rows extend in a first direction and arranged in a second direction, where the first direction and the second direction intersect; the at least one driver circuit includes a plurality of shift register circuits disposed in cascade and a shift register circuit of the plurality of shift register circuits is located between adjacent light-emitting element rows of the plurality of light-emitting element rows.