Display Panel Circuit Layout for Narrow Border Screens
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Solution Overview
Problem
Conventional display panels require a large border area for driving circuits, which increases the overall width of the display panel.
Innovation Solution
The display panel is designed with a first pixel circuit and a second pixel circuit, where the first pixel circuit has a shorter length in a specific direction, allowing for the driving circuit to overlap with a shift register and light-emitting element, reducing the space required for driving circuits and enabling a borderless design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If driving circuits are disposed in a border area of the display panel, then the driving circuits can be properly arranged, but the border area width becomes relatively large
Solution Approach 1:
The patent applies dimensionality change by allowing the driving circuit to overlap with the light-emitting element area in the vertical dimension (second direction), rather than only arranging it horizontally adjacent to the display area. This overlapping arrangement in the second direction enables the borderless display effect while maintaining proper driving circuit functionality.
Solution Approach 2:
The driving circuit is nested within the border area by positioning it to overlap with the light-emitting element. The shift register, which is part of the driving circuit, is specifically arranged to overlap with both the light-emitting element and the pixel circuit, creating a nested configuration that reduces the horizontal border width.
2Length of stationary object
If the first pixel circuit has a shorter length in the first direction, then the border width can be reduced, but the pixel circuit layout becomes more complex
Solution Approach 1:
The patent applies local quality by differentiating the layout of pixel circuits in different areas. The first pixel circuit (in the border area) has a shorter length in the first direction and is specifically optimized to overlap with the shift register, while the second pixel circuit (in the display area) maintains a standard layout. This localized optimization reduces border width without requiring all pixel circuits to be redesigned.
Solution Approach 2:
The display panel is segmented into different areas with different pixel circuit configurations. The border area contains the first pixel circuit with shortened length in the first direction, while the main display area contains the second pixel circuit with standard dimensions. This segmentation allows the border width reduction to be achieved locally without affecting the overall display area.
Data Source
AI summary
The present application discloses a display panel and a display apparatus. The display panel includes: a light-emitting element; and a pixel circuit and a driving circuit, the driving circuit providing a control signal for the pixel circuit, and the pixel circuit being electrically connected to the light-emitting element; wherein the display panel comprises a first area and a second area, the pixel circuit comprises a first pixel circuit located in the first area and a second pixel circuit located in the second area, a length of the first pixel circuit in a first direction being less than a length of the second pixel circuit in the first direction; the driving circuit comprises a first driving circuit, the first driving circuit comprising a plurality of first shift registers cascaded along a second direction, the first direction intersecting with the second direction.