Display Panel Driver Layout Between LED Rows 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 reduced bezel widths.
Innovation Solution
The driver circuit, including shift register circuits, is integrated within the display area by positioning them between adjacent light-emitting element rows, allowing for a more compact layout that reduces the frame width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the driver circuit is located on the left frame and right frame, then the driver circuit can be easily accessed and connected, but the frame width increases which contradicts the narrow frame design trend
Solution Approach 1:
The driver circuit is moved from the lateral frame areas (left and right) into the display area, utilizing the vertical dimension between light-emitting element rows. This dimensional relocation reduces the horizontal frame width while maintaining driver circuit functionality through integrated bonding structures.
Solution Approach 2:
The driver circuit is merged with the light-emitting element array by positioning it between adjacent rows of light-emitting elements. This integration allows the driver circuit to share the same substrate space, reducing the need for separate frame areas and achieving a narrow frame design.
2Length of moving object
If the driver circuit is integrated within the display area between light-emitting element rows, 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 that are cascaded between adjacent pixel circuit rows. This segmentation allows the complex driver functionality to be distributed across multiple smaller units, making the integrated layout more manageable while maintaining narrow frame dimensions.
Solution Approach 2:
The driver circuit stages are arranged vertically between light-emitting element rows rather than horizontally in the frame area. This vertical arrangement in the third dimension (depth between rows) reduces horizontal complexity while maintaining functional integrity.
3Area of moving object
If the driver circuit is placed in the display area, then the screen-to-body ratio is enhanced, but the risk of transistor damage during bonding increases
Solution Approach 1:
A bonding protection structure is formed before the bonding process to protect transistor electrodes from damage. This protective layer acts as a cushion during the bonding of the driver circuit to the light-emitting element substrate, preventing direct mechanical stress on the vulnerable transistor electrodes while enabling the integrated narrow frame design.
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.