Pixel Structure Shielding Layer for Light-Transmitting Display Panels
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Solution Overview
Problem
Light-transmitting display panels are susceptible to external interference such as external light and static electricity, which degrades their display quality.
Innovation Solution
A pixel structure is designed with a shielding layer integrated into the power wire, overlapped with the driving circuit, and connected through a conductive structure, which mitigates the influence of external light and static electricity by maintaining a smaller electric field intensity and increasing the transparency of the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light-transmitting display panel is used to allow viewers to see through the panel, then the transparency and light-transmitting characteristic are improved, but the display quality deteriorates due to external light interference and static electricity causing current leakage
Solution Approach 1:
A shielding layer is introduced as an intermediary component between the power wire and the external environment. This shielding layer acts as a mediator that blocks external light and static electricity from directly interacting with the power wire and driving circuit, thereby preventing current leakage while maintaining the overall transparency of the display panel.
Solution Approach 2:
The shielding layer is positioned in advance to preemptively block external interference before it can affect the power wire and driving circuit. By establishing this protective barrier beforehand, the design prevents potential current leakage issues before they occur, ensuring stable display quality throughout operation.
2Reliability
If a shielding layer is added to protect against external interference, then the display quality is improved, but the device complexity increases
Solution Approach 1:
The shielding layer is merged with the power wire structure, forming an integrated component rather than a separate element. This combination reduces the number of discrete parts and simplifies the overall device structure while still providing the necessary shielding function against external light and static electricity interference.
Solution Approach 2:
The power wire structure is designed to serve multiple functions simultaneously: it provides electrical power transmission and also incorporates shielding functionality through the integrated shielding layer. This multi-functionality reduces the need for additional dedicated shielding components, thereby simplifying the overall device complexity.
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 effectively enhances the display quality of light-transmitting display panels by reducing the impact of external interference and improving transparency.
Implementation Method 1
The power wire includes a shielding layer. The shielding layer is overlapped with the first active device. In order to make the disclosure comprehensible, several exemplary embodiments accompanied with figures are described in detail below.
Data Source
AI summary
A pixel structure including a substrate, a power wire, a planarization layer, a drive circuit and a conductive structure is provided. The substrate has a layout area and a light-transmitting area located outside the layout area. The power wire is disposed on the layout area of the substrate. The power wire includes a shielding layer. The planarization layer is disposed on the substrate and covers the power wire. The drive circuit is disposed on the planarization layer and corresponds to the layout area. The drive circuit includes a first active device. The shielding layer overlaps with the first active device. The conductive structure is disposed in the planarization layer and distributed corresponding to the layout area. The power wire is electrically connected with the drive circuit through the conductive structure. A display panel is also provided.