Pixel Electrode Overlap Layout With Shield Wiring for VR Displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display devices for virtual reality (VR) or augmented reality (AR) face challenges with low resolution, high power consumption, and low luminance, which affect the sense of reality and immersion, and require high aperture ratios for improved display quality.
Innovation Solution
The display device incorporates a structure with overlapping first and second wirings separated by a third wiring supplied with a constant potential, which blocks electrical noise and increases the aperture ratio, allowing for high resolution and reduced power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the first wiring and pixel electrode are arranged to overlap without the third wiring, then the aperture ratio is reduced, but electrical noise interference increases affecting display quality
Solution Approach 1:
The third wiring is introduced as an intermediary element positioned between the first wiring and the pixel electrode. This intermediate wiring serves as a shield that blocks electrical noise from the first wiring from interfering with the pixel electrode, while allowing the first and second wirings to overlap with the pixel electrode to maximize the aperture ratio.
2Use of energy by moving object
If the aperture ratio is increased to improve luminance and reduce power consumption, then the display quality improves, but the complexity of the wiring structure increases
Solution Approach 1:
The third wiring is designed to serve multiple functions simultaneously: it acts as an electrical noise shield protecting the pixel electrode, serves as a potential supply line (e.g., ELVDD or ELVSS for organic EL elements), and enables the first and second wirings to overlap with the pixel electrode to maximize aperture ratio without causing noise interference.
3Manufacturing precision
If the resolution is increased for VR/AR applications, then the sense of reality and immersion improves, but the power consumption increases
Solution Approach 1:
The patent converts the potentially harmful overlap between signal wirings and pixel electrodes into a beneficial configuration. By allowing the first and second wirings to overlap with the pixel electrode (which would normally cause noise interference), and simultaneously introducing the third wiring as a shield, the design maximizes the aperture ratio and reduces power consumption while maintaining high resolution for VR/AR applications.
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 achieves a display device with high resolution, low power consumption, and high luminance, enhancing the sense of reality and immersion while maintaining a high aperture ratio.
Implementation Method 1
The first wiring and the pixel electrode overlap with each other with the third wiring therebetween
Data Source
AI summary
A display device with high resolution is provided. A display device with low power consumption is provided. A display device with high luminance is provided. A display device with a high aperture ratio is provided. The display device includes a first wiring, a second wiring, a third wiring, and a pixel electrode. The first wiring extends in a first direction and is supplied with a source signal. The second wiring extends in a second direction intersecting the first direction and is supplied with a gate signal. The third wiring is supplied with a constant potential. The first wiring and the pixel electrode overlap with each other with the third wiring therebetween.