Transparent Display Panel Wiring Layout for Uniform Peripheral Transmittance
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Solution Overview
Problem
Display devices that allow the back to be visible while displaying an image often face challenges in maintaining uniform transparency between the display region and the peripheral region, where wiring is arranged, leading to potential visibility issues and discomfort.
Innovation Solution
A display device configuration featuring an array substrate and a counter substrate with a liquid crystal layer, where the peripheral region includes a first wiring pattern connecting scanning signal lines and a scanning signal line driver circuit, and a second wiring pattern with second wirings applied to a common potential, along with a light shielding layer to ensure uniform transmittance and prevent visibility differences between the display and peripheral regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wiring is arranged in the peripheral region to enable display functionality, then the display device can perform scanning and data signal transmission, but the transparency becomes non-uniform between the display region and peripheral region
Solution Approach 1:
The patent applies different wiring patterns to different regions: the display region uses a conventional grid pattern with scanning and data signal lines, while the peripheral region uses a first wiring pattern with scanning signal lines and dummy lines, and regions without pixels use a second wiring pattern with only dummy lines. This local differentiation maintains transparency uniformity across the entire panel while preserving necessary display functionality in each region.
Solution Approach 2:
The patent changes the wiring configuration parameters across different regions. In the peripheral region, dummy lines are added to match the transparency characteristics of the display region. In regions without pixels, only dummy lines are present. These parameter changes in wiring density and type enable the peripheral region to achieve transparency comparable to the display region, resolving the non-uniformity issue.
2Illumination intensity
If the peripheral region is made transparent to enhance design, then the aesthetic appeal improves, but the boundary between display and peripheral regions becomes visible
Solution Approach 1:
The patent implements region-specific wiring patterns where the peripheral region uses dummy lines configured to match the transparency characteristics of the display region. This local quality adjustment ensures that the peripheral region achieves the desired transparency while maintaining visual continuity with the display region, making the boundary imperceptible.
Solution Approach 2:
The patent creates visual homogeneity across the entire panel by configuring the wiring patterns in the peripheral region to produce transparency characteristics matching the display region. The use of dummy lines in the peripheral region and regions without pixels ensures uniform light transmission properties, making the entire panel appear as a homogeneous transparent surface without visible boundaries.
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 ensures uniform transparency across the display panel, preventing the boundary between the display and peripheral regions from being visible, thus enhancing the overall transparency and aesthetic appeal of the device.
Implementation Method 1
a liquid crystal layer between the array substrate and the counter substrate
Data Source
AI summary
A display device includes an array substrate including a display region arranged with pixels and a peripheral region outside the display region, a counter substrate facing the array substrate, and a liquid crystal layer between the array substrate and the counter substrate. The display region includes a plurality of scanning signal lines extending in a first direction and arranged in a second direction intersecting the first direction, and a plurality of data signal lines extending in the second direction and arranged in the first direction. The peripheral region comprises a first wiring pattern having a first grid pattern formed with a plurality of first wirings connecting the plurality of scanning signal lines and a scanning signal line driver circuit and a plurality of dummy wirings, and a second wiring pattern having a second grid pattern formed with second wirings to be applied with a certain potential.