Sub-pixel Segmentation for Anti-spy Display Control
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Solution Overview
Problem
Current liquid crystal display panels face challenges in integrating an anti-spy display function without increasing device thickness or complexity, particularly in achieving a narrow-viewing-angle anti-spy display mode while maintaining wide-viewing-angle capabilities.
Innovation Solution
An array substrate with sub-pixels comprising both a display area and an interference area, where the display area and interference area are independently driven, with the interference area located adjacent to neighboring sub-pixels, allowing for the irradiation of light from the interference area into adjacent sub-pixels to create an anti-spy display effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an anti-spy display function is integrated into the liquid crystal display panel, then the anti-spy capability is improved, but the device thickness and structural complexity increase
Solution Approach 1:
The sub-pixel is divided into two independent driveable areas: a display area for normal image display and an interference area for anti-spy function. This segmentation allows each area to perform its specific function independently, achieving both wide-viewing-angle display and narrow-viewing-angle anti-spy modes without requiring separate display modules, thereby avoiding increased device thickness and overall structural complexity
Solution Approach 2:
The liquid crystal display panel is designed to perform multiple functions through a single integrated structure. By configuring the interference area with independent pixel electrodes and utilizing the light interference effect, the same display panel can switch between wide-viewing-angle display mode and narrow-viewing-angle anti-spy mode, eliminating the need for additional separate anti-spy devices and reducing overall device complexity
2Object-affected harmful factors
If the interference area is added to each sub-pixel, then the anti-spy display function is achieved, but the manufacturing complexity increases
Solution Approach 1:
The pixel electrode structure is merged and extended from the display area into the interference area. The same pixel electrode configuration and liquid crystal alignment methods are used in both areas, allowing the manufacturing process to be extended rather than restarted. This merging approach enables the interference area to be formed using the same manufacturing steps as the display area, significantly reducing manufacturing complexity
Solution Approach 2:
The manufacturing process utilizes parameter changes in the liquid crystal material properties to achieve different display modes. By controlling the liquid crystal orientation and utilizing light interference effects in the interference area, the anti-spy function is achieved through material parameter optimization rather than complex structural additions, simplifying the manufacturing process
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
Enables the display panel to switch between anti-spy and wide-viewing-angle modes by independently controlling the display and interference areas, providing a narrow-viewing-angle anti-spy display function without compromising the normal wide-viewing-angle display performance.
Implementation Method 1
a liquid crystal layer, and an opposite substrate, wherein the opposite substrate is disposed opposite to the array substrate, and the liquid crystal layer is sandwiched between the opposite substrate and the array substrate
Data Source
AI summary
An array substrate and a manufacturing method thereof, a display panel and a driving method thereof, and an electronic device are disclosed. The array substrate includes a plurality of sub-pixels arranged in an array; each of the sub-pixels includes a display area and an interference area, the display area and the interference area are disposed side by side and configured to be independently driven, and the interference area is located on at least one side of the display area adjacent to a neighboring sub-pixel; the display area includes a first pixel electrode, the interference area includes a second pixel electrode, and the first pixel electrode is electrically insulated from the second pixel electrode.