Display Substrate Angle-Adjusting Portion for Edge Color Shift
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Solution Overview
Problem
Display devices with curved edges suffer from color shift issues due to differences in light-emitting directions between edge and flat portions, caused by manufacturing processes that alter the orientation of pixels during bending.
Innovation Solution
A display substrate with an angle-adjusting portion between the first pixel and the edge, forming an included angle between the light-emitting surface and the edge, which is acute (30° to 60°), and a manufacturing method that forms this angle to align light-emitting directions of edge and flat pixels, using a stair or sawtooth-shaped angle-adjusting portion and a planar surface for pixel support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the edge portion is bent to form a curved edge display, then the display device achieves flexible shape and modern aesthetic design, but the light-emitting direction of edge pixels deviates from that of flat pixels causing color shift
Solution Approach 1:
The patent applies local quality by creating a distinct angle-adjusting portion only at the edge region where pixels require orientation adjustment. This portion has a different inclination angle compared to the flat main portion, allowing edge pixels to emit light in the correct direction while maintaining the overall curved edge shape for aesthetic purposes.
Solution Approach 2:
The patent introduces an additional dimensional consideration by adding the angle-adjusting portion with a specific inclination angle relative to the substrate. This creates a multi-level structure where the edge pixels are positioned at a different angular dimension, enabling them to compensate for the orientation change caused by bending while the display maintains its curved aesthetic appearance.
2Shape
If pixels at the edge are oriented perpendicular to the bent edge, then the display achieves a modern curved aesthetic, but color shift occurs due to inconsistent light-emitting directions
Solution Approach 1:
The patent applies local quality by creating a distinct angle-adjusting portion only at the edge region where pixels require orientation adjustment. This portion has a different inclination angle compared to the flat main portion, allowing edge pixels to emit light in the correct direction while maintaining the overall curved edge shape for aesthetic purposes.
Solution Approach 2:
The patent applies preliminary action by pre-adjusting the orientation of edge pixels through the angle-adjusting portion during the manufacturing process, before the display is bent into its final curved shape. This ensures that when the display is assembled, the edge pixels are already positioned to emit light in the correct direction, preventing color shift while maintaining the curved aesthetic.
3Adaptability or versatility
If the display substrate is bent to create curved edges, then flexible display design is achieved, but the orientation of edge pixels changes causing brightness and color differences
Solution Approach 1:
The patent applies local quality by creating a distinct angle-adjusting portion only at the edge region where pixels require orientation adjustment. This portion has a different inclination angle compared to the flat main portion, allowing edge pixels to emit light in the correct direction while maintaining the overall curved edge shape for aesthetic purposes.
Solution Approach 2:
The patent introduces an additional dimensional consideration by adding the angle-adjusting portion with a specific inclination angle relative to the substrate. This creates a multi-level structure where the edge pixels are positioned at a different angular dimension, enabling them to compensate for the orientation change caused by bending while the display maintains its curved aesthetic appearance.
Data Source
AI summary
A display substrate, a manufacturing method thereof, and a display device are provided. The display substrate includes: a base substrate including a main portion and an edge portion located on at least one side of the main portion; a first pixel located on the edge portion and including a first light-emitting surface; and an angle-adjusting portion located between the first pixel and the edge portion and configured to provide an included angle between the first light-emitting surface and the edge portion at a position where the first pixel is located, the included angle being not zero.