In-Panel Shift Register Layout for Narrow-Bezel Display Panels
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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 thinner bezels.
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
1Ease of manufacture
If the driver circuit is located on the left frame and right frame, then the driver circuit can be easily integrated with the display panel, but the frame width increases and narrow frame design cannot be achieved
Solution Approach 1:
The driver circuit is moved from the lateral frame areas (horizontal dimension) to the display area (utilizing vertical dimension between light-emitting element rows). This dimensional transition allows the driver circuit to be integrated within the display area, reducing the frame width while maintaining manufacturing feasibility through established bonding processes.
2Length of stationary object
If the driver circuit is integrated within the display area, then the frame width is reduced achieving narrow frame design, but the complexity of circuit layout increases
Solution Approach 1:
The driver circuit is segmented into multiple stages of shift register circuits that are cascaded and distributed between adjacent light-emitting element rows. This segmentation allows the complex driver circuit functionality to be divided into manageable modules, reducing layout complexity while achieving narrow frame design.
3Area of stationary 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 process increases
Solution Approach 1:
A bonding structure is introduced as an intermediary component between the pixel circuit and the driver circuit. This bonding structure facilitates the bonding process while protecting the transistors in the driver circuit from damage, enabling the driver circuit to be safely integrated within the display area and achieving enhanced screen-to-body ratio.
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.