Touch Display Panel With Variable Mesh Line Widths for Equal Reflectivity
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Solution Overview
Problem
The existing touch display technologies suffer from optical defects such as bright and dark zones due to varying line widths of metal meshes in display and non-display regions, leading to compromised display quality and user experience.
Innovation Solution
A touch display panel design with varying line widths and break rates in different regions to maintain equal reflectivity across all areas, ensuring uniform light reflection and reducing optical defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal meshes with varying line widths are used in display and non-display regions, then touch sensitivity and signal transmission are improved, but optical defects such as bright and dark zones occur
Solution Approach 1:
The patent applies local quality by configuring different line width patterns for touch lines in different regions. Specifically, touch lines in the display region have a first line width, while touch lines in the non-display region have a second line width that is greater than the first line width. This localized differentiation allows each region to have optimal characteristics for its specific function while maintaining overall display uniformity through compensated reflectivity.
2Adaptability or versatility
If metal meshes with different line widths are used in different regions, then regional functionality is optimized, but reflectivity uniformity deteriorates
Solution Approach 1:
The patent implements equipotentiality by ensuring that the reflectivity of the anode layer is substantially equal across both the display region and the non-display region. This is achieved by carefully designing the line width parameters such that the optical reflectivity compensation balances the different line width configurations, making the reflectivity potential equal throughout the display panel.
3Illumination intensity
If breaks are introduced in touch lines to adjust reflectivity, then optical uniformity is improved, but touch line continuity deteriorates
Solution Approach 1:
The patent applies partial action by introducing breaks in only certain touch lines within specific regions rather than uniformly across all touch lines. The breaks are strategically placed in touch lines located in the non-display region where they help adjust reflectivity without significantly impacting the overall touch functionality. This partial modification achieves optical uniformity while minimizing disruption to touch line continuity.
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
The solution enhances display quality by eliminating visible bright and dark zones, thereby improving user experience and display effectiveness.
Implementation Method 1
reflectivity is a ratio of light, which is in an incident light from a side of the touch structure layer and irradiated onto the anode layer through the plurality of touch lines, and is further reflected back to the touch structure layer by the anode layer
Data Source
AI summary
A touch panel display includes a display panel and a touch panel disposed on a side of the display panel. The touch panel includes a touch structure layer. The display panel includes an anode layer. The touch structure layer includes a plurality of touch lines, and the plurality of touch lines define a plurality of touch meshes. The touch display panel includes a first region and a second region, and the plurality of touch lines include a plurality of first touch lines located in the first region and a plurality of second touch lines located in the second region. A line width of at least one first touch line in the plurality of first touch lines is smaller than a line width of at least one second touch line in the plurality of second touch lines. Reflectivity of the first region is equal to reflectivity of the second region.