Splicing Display Panel Layout for Color-Matched Seamless Joints
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Solution Overview
Problem
Splicing display devices face issues with display color mismatch and visible non-display areas due to consistent sub-pixel arrangements and driving chip placement, complicating preparation and reducing display effectiveness.
Innovation Solution
A display panel design with reversed sub-pixel ordering and adjusted driving chip placement, allowing 180-degree rotation without altering driving circuits, ensuring consistent color arrangement and minimizing non-display areas in splicing devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If display panels are spliced to form larger display devices, then the display device size is increased, but display color mismatch and visible non-display areas appear at joints
Solution Approach 1:
The patent applies asymmetry by reversing the ordering of emissive colors in the reserved pixel group relative to the display pixel group. Specifically, if display sub-pixels are arranged in the order red, green, blue along the second direction, the reserved pixel bits are arranged in the reverse order blue, green, red. This asymmetric arrangement ensures that when panels are spliced, the color ordering remains consistent across joints regardless of rotation, eliminating display color mismatch.
2Ease of operation
If driving chips are placed in non-display areas, then pixel structures can be driven, but visible non-display areas and gaps appear at splicing joints
Solution Approach 1:
The patent applies inversion by placing the driving chip in the non-display area at one side of the display area away from the splicing joint, rather than near the joint. Additionally, the first display pixel group is positioned at one side of the first reserved pixel group away from the driving chip. This inverted arrangement ensures that when panels are spliced, the driving chips are located at the outer edges away from joints, making them invisible and eliminating gaps at splicing joints.
3Ease of manufacture
If sub-pixel arrangements are kept consistent across panels, then manufacturing is simplified, but display color mismatch occurs at splicing joints
Solution Approach 1:
The patent applies local quality by making the reserved pixel group have a different color ordering arrangement than the display pixel group within the same panel. While the display pixel group follows the standard red-green-blue ordering, the reserved pixel group uses the reverse blue-green-red ordering. This local differentiation in arrangement allows the overall system to achieve color consistency at joints when panels are spliced, resolving the contradiction between manufacturing simplicity and display color matching.
Data Source
AI summary
The present application provides a display panel, a splicing display device and a method for preparing the same. The display panel includes: a display area, and a non-display area surrounding periphery of the display area. The display panel further includes: a driving chip and a pixel structure. The first display pixel group includes a plurality of first display sub-pixels disposed along a second direction, and the first virtual pixel group includes a plurality of first virtual pixel bits disposed along the second direction, the first direction intersects with the second direction. Within the first repeating unit, an ordering of emissive colors of the plurality of first display sub-pixels along the second direction is in reverse to a preset ordering of emissive colors of the plurality of first virtual pixel bits along the second direction.