Display Device Sensor Line Patterns for Viewing Angle Consistency
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Solution Overview
Problem
Existing display devices face challenges in maintaining consistent display quality when viewed from different angles, particularly due to the arrangement of light emitting elements and input sensors.
Innovation Solution
A display device design that includes a base layer, a pixel defining layer with light emitting openings, and a sensor layer with specific line patterns extending between light emitting elements, ensuring reliable signal transmission and adjusted light emitting element arrangements for improved display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If light emitting elements are arranged in a conventional pattern, then the display device can be manufactured with standard processes, but display quality becomes inconsistent when viewed from different angles
Solution Approach 1:
The patent applies asymmetry by intentionally creating non-uniform spacing between light emitting elements in different regions of the display panel. Specifically, the distance between adjacent light emitting elements varies in different areas, creating an asymmetric arrangement that compensates for viewing angle dependencies and maintains consistent display quality across different observation angles.
2Measurement precision
If sensor lines are densely arranged to improve touch sensitivity, then input detection accuracy increases, but signal transmission reliability decreases due to interference between adjacent lines
Solution Approach 1:
The patent applies local quality by varying the spacing between sensor lines differently in different regions of the display panel. In regions where light emitting elements are closer together, the sensor lines are spaced farther apart to reduce interference and maintain signal reliability. In regions with wider element spacing, sensor lines can be closer together to maintain touch sensitivity. This localized optimization balances detection accuracy with signal reliability across the entire display area.
Data Source
AI summary
The display device includes a base layer, a pixel defining layer disposed on the base layer, a plurality of pixels that include first color light emitting elements, second color light emitting elements, and third color light emitting elements, and a sensor disposed on the pixel defining layer and spaced apart from the light emitting openings. The sensor includes first line parts that extend in the second direction and pass between the first to third color light emitting elements, and second line parts that extend in the first direction and pass between two adjacent first color light emitting elements and connect two adjacent first line parts to each other. A first end and a second end of each of the second line parts are in contact with the adjacent first line parts, respectively.