Planar Display Panel with Non-Equidistant Sub-Pixel Pitches
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Solution Overview
Problem
Planar displays fail to accurately reflect the real visual perception of objects due to varying visual angles caused by different positions of object parts, leading to distorted image proportions, and have high manufacturing costs for curved displays.
Innovation Solution
A planar display panel with non-equidistant sub-pixel pitches, where the distance between sub-pixels increases sequentially from the central axis, mimicking the curved-screen effect by adjusting sub-pixel pitches to achieve the same visual angle for line segments of equal length, thus replicating the curved-screen displaying effect at lower manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a planar display uses conventional equidistant sub-pixel arrangement, then manufacturing is simple and cost-effective, but visual perception accuracy deteriorates due to varying visual angles for different positions
Solution Approach 1:
The patent applies local quality by varying the sub-pixel pitch according to position on the display panel. Specifically, the sub-pixel pitch is set to be smaller at the center region and larger at the peripheral regions, creating position-dependent pixel density that compensates for the varying visual angles. This non-uniform arrangement ensures that each region contributes appropriately to the overall visual perception accuracy without requiring complex curved manufacturing processes.
2Measurement precision
If a curved display is used to achieve equal visual angles, then visual perception accuracy is improved, but manufacturing cost and process complexity increase significantly
Solution Approach 1:
Instead of curving the physical display surface to achieve equal visual angles, the patent inverts the approach by keeping the display surface planar but varying the sub-pixel pitch non-uniformly. This inversion transforms the problem from a geometric/structural solution (curving the screen) to a parametric solution (adjusting pixel density), thereby achieving the same visual perception accuracy without the manufacturing complexity of curved surfaces.
Solution Approach 2:
The patent creates a virtual curved-screen effect on a planar surface by strategically arranging sub-pixels with varying pitches. The non-uniform sub-pixel arrangement mimics the visual characteristics of a curved display, where the density variation compensates for the lack of physical curvature, allowing the planar display to replicate the curved display's visual perception accuracy.
3Measurement precision
If sub-pixel pitch is increased from central axis, then curved-screen visual effect is achieved on planar display, but manufacturing precision requirements increase
Solution Approach 1:
The patent implements a dynamic sub-pixel pitch design where the pitch varies continuously from the center to the periphery of the display panel. This dynamic arrangement allows the display to adapt the pixel density to the viewing geometry, creating the curved-screen visual effect. The gradual transition in pitch helps manage manufacturing precision requirements by avoiding abrupt changes while maintaining the overall gradient pattern.
Data Source
AI summary
A planar display panel having a displaying effect of a curved screen and a display device. The sub-pixel pitches are sequentially increased in a direction departing from a central axis of the active display region in the display panel, so that the curved displaying effect is achieved by the planar display panel.