Transparent Conductive Films for Camera Aperture Electrical Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display apparatuses face the challenge of minimizing non-display regions within the display area to enhance the effective display region occupancy, particularly around components like cameras, while maintaining electrical characteristics and visibility.
Innovation Solution
A display apparatus design featuring a first and second substrate with a display region, a transparent region, and a frame region, where a polarizer and transparent conductive films are strategically placed to minimize the non-display region and maintain electrical stability, using a polarizer and transparent conductive films to surround the transparent region and prevent electrical charge accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a transparent region is arranged inside the display region to accommodate a camera, then the effective display area is increased, but electrical characteristics of the display region change due to the transparent region arrangement
Solution Approach 1:
The patent applies local quality by differentiating the treatment of different regions: the transparent region uses transparent conductive films while the frame region uses opaque conductive films. This localized differentiation allows the transparent region to maintain optical properties while the frame region provides electrical stability, resolving the contradiction between increasing effective display area and maintaining electrical characteristics.
Solution Approach 2:
The patent introduces transparent conductive films as intermediary elements within the transparent region. These films serve as mediators that provide necessary electrical connectivity and charge dissipation while maintaining optical transparency, thus enabling the transparent region to function both optically and electrically without compromising either property.
2Area of stationary object
If the display region is extended to surround the transparent region, then the non-display region is reduced, but electrical charge accumulation occurs around the transparent region
Solution Approach 1:
The patent applies local quality by using transparent conductive films specifically within the transparent region to prevent charge accumulation, while using opaque conductive films in the frame region. This localized approach allows charge dissipation exactly where needed (in the transparent region) without affecting the overall display structure, thus reducing the non-display region while preventing harmful charge accumulation.
Solution Approach 2:
The patent converts the potentially harmful effect of charge accumulation into a beneficial outcome by using the transparent conductive films to actively dissipate charges. The transparent conductive films transform the problematic charge buildup into a controlled electrical conduction path, preventing harmful accumulation while maintaining the extended display region design.
3Illumination intensity
If transparent conductive films are used in the frame region, then visibility is improved, but electrical conductivity may be insufficient compared to opaque conductive films
Solution Approach 1:
The patent applies local quality by strategically placing transparent conductive films only where optical transparency is required (in and around the transparent region), while using opaque conductive films in the frame region where maximum electrical conductivity is needed. This spatial differentiation optimizes both visibility and electrical conductivity in their respective locations without compromise.
Solution Approach 2:
The patent employs composite materials by combining transparent conductive films and opaque conductive films in a single display structure. Each material type is selected for its specific properties: transparent conductive films provide both optical transparency and electrical conductivity where needed, while opaque conductive films provide superior electrical conductivity in the frame region, creating a composite system that optimizes both properties.
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 effectively reduces the non-display region, improves electrical characteristics, and enhances the visibility and detection accuracy around the transparent region, thereby increasing the effective display area and maintaining operational stability.
Implementation Method 1
a first transparent conductive film formed in a first conductive layer between the first substrate and the second substrate; and a second transparent conductive film formed in a second conductive layer between the first conductive layer and the second substrate
Implementation Method 2
a polarizer formed in either the first substrate or the second substrate and having an opening overlapping the transparent region
Data Source
AI summary
A display apparatus includes: a first substrate and a second substrate arranged so as to face each other; a display region included in each of the first substrate and the second substrate; a transparent region formed inside the display region in a planar view; a frame region formed between the display region and the transparent region so as to surround the transparent region along an outer edge of the transparent region in a planar view; a polarizer formed in either the first substrate or the second substrate and having an opening overlapping the transparent region; a first transparent conductive film formed in a first conductive layer between the first substrate and the second substrate; and a second transparent conductive film formed in a second conductive layer between the first conductive layer and the second substrate. The second transparent conductive film is in the frame region in a planar view.