Display Device Wiring for Under-Panel Sensor Light Quality
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Solution Overview
Problem
Existing display devices face challenges in minimizing the ratio of non-display area to display area, particularly in efficiently arranging sensors under the display panel to enhance light receiving quantity and quality.
Innovation Solution
The display device incorporates wirings around transmission portions with octagonal or circular shapes to improve light reception and quality for sensors disposed under these areas, utilizing a substrate with a display area of main pixels and a sensor area with auxiliary pixels and transmission portions, and specific wiring configurations to connect auxiliary pixels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If sensors are arranged under the display panel with conventional wiring, then the display area can be maximized, but light diffraction occurs reducing sensor detection quality
Solution Approach 1:
The patent applies curvature by designing the transmission portion with a circular shape instead of conventional rectangular or square shapes. This circular geometry reduces light diffraction effects at the edges, thereby improving the quality of light received by the sensor while maintaining the sensor arrangement under the display panel. The curved boundary minimizes diffraction compared to sharp corners of polygonal shapes.
2Measurement precision
If transmission portions are designed with octagonal or circular shapes, then light receiving quality improves, but manufacturing complexity increases
Solution Approach 1:
The patent segments the wiring into two directional sets: first directional wirings extending in a first direction and second directional wirings extending in a second direction. This segmentation allows the complex octagonal or circular wiring pattern to be constructed from simpler linear segments, making manufacturing more manageable while achieving the desired light receiving quality through the overall geometric shape.
3Ease of manufacture
If sensors are placed in holes formed in the display panel, then sensor arrangement is simple, but the non-display area to display area ratio increases
Solution Approach 1:
The patent transitions from a two-dimensional planar arrangement where sensors are placed in holes on the display surface to a three-dimensional arrangement where sensors are positioned under the display panel. This dimensional change allows sensors to be integrated into the substrate structure without occupying display area, thereby maximizing the display area while maintaining simple sensor arrangement through the use of transmission portions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration reduces diffraction phenomena, thereby enhancing the light receiving quantity and quality of sensor devices, maintaining good detection ability while minimizing additional processing steps.
Implementation Method 1
This configuration reduces diffraction phenomena, thereby enhancing the light receiving quantity and quality of sensor devices
Data Source
AI summary
A display device includes a substrate including a display area including a plurality of main pixels, and a sensor area including a plurality of auxiliary pixels and a plurality of transmission portions; and a plurality of wirings arranged along edges of the plurality of transmission portions and electrically connecting the plurality of auxiliary pixels to each other. The plurality of wrings includes a first directional wirings extending in a first direction and arranged in a second direction crossing the first direction, and a second directional wirings extending in the second direction and arranged in the first direction, and a wiring adjacent to the transmission portion from among the first directional wirings includes a first extension portion.