Display Input Detection Module Hole Routing
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Solution Overview
Problem
Display devices that integrate a display unit and an input detection unit in a single panel face challenges with increased thickness and process costs due to the need for complex electrical connections and additional components.
Innovation Solution
A display device design that includes a module hole in the active area, allowing for the electrical connection of touch sensor units while maintaining display quality, with a base substrate, circuit layer, display element layer, and input detection unit, where the input detection unit is disposed on the sealing layer and includes touch sensor units, connection parts, and bridge lines to facilitate input detection without increasing thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a display device integrates a display unit and an input detection unit in one panel, then input detection functionality is achieved, but the thickness and process cost increase
Solution Approach 1:
The patent combines the display unit and input detection unit into a single integrated panel structure. The touch sensor units are formed on the same substrate as the display elements, with shared structural components such as the substrate, sealing layers, and encapsulation structures. This merging eliminates the need for separate touch panel and display panel assemblies, thereby reducing overall thickness and simplifying the manufacturing process while maintaining both display and input detection functionalities.
2Reliability
If module holes are formed in the active area to connect touch sensor units, then electrical connection is achieved, but display quality may be compromised
Solution Approach 1:
The patent addresses the electrical connection challenge by routing connection lines through the peripheral area surrounding the active area, rather than through the active display area itself. The module holes are strategically positioned in the peripheral region where they do not interfere with the display quality, allowing electrical connections to be established between touch sensor units without compromising the visual output area. This spatial separation in different functional zones resolves the conflict between electrical connectivity and display quality.
3Adaptability or versatility
If separate routing of signal lines is allowed, then integration of input detection is enhanced, but device complexity increases
Solution Approach 1:
The patent segments the functional areas into distinct zones: the active area for display elements, the peripheral area for module holes and connection routing, and the encapsulation regions. Signal lines for the input detection unit are routed through the peripheral area, separate from the display signal lines in the active area. This segmentation allows independent optimization of each functional path, enhancing integration capability while managing complexity through spatial organization and functional separation.
Data Source
AI summary
A display device includes a base substrate and an input detection unit. The base substrate includes a front surface and a rear surface that face each other, an active area, a peripheral area adjacent to the active area, a module hole in the active area, a routing area that surrounds the module hole, and a depression pattern that surrounds the module hole between the routing area and the module hole. The input detection unit includes first touch sensor units along a first direction, a first connection part that connects adjacent first touch sensor units, second touch sensor units arranged in a second direction that intersects the first direction, a second connection part that connects adjacent second touch sensor units; and a bridge line disposed in the routing area and connected to second touch sensor units adjacent to each other in the second direction with the module hole therebetween.