Segmented Pixel Electrodes for Dual View Field Display Substrate
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Solution Overview
Problem
Existing dual view field display devices face challenges in enlarging the visible range of each single-side view field without thinning the glass substrate, leading to increased production costs and degradation of yield and reliability.
Innovation Solution
The implementation of an array substrate with pixel units featuring at least two spaced first and second pixel electrodes, forming comb-like structures, allows for independent control of each pixel electrode, enabling the enlargement of the visible range without reducing the glass substrate thickness, thereby reducing production costs and enhancing substrate reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the thickness of the glass substrate is decreased to enlarge the visible range, then the angle θ is increased, but the sturdiness of the color filter glass substrate is degraded and production costs increase
Solution Approach 1:
The pixel electrode is divided into multiple sub-pixel electrodes (first sub-pixel electrode, second sub-pixel electrode, third sub-pixel electrode, fourth sub-pixel electrode) arranged in a specific pattern. This segmentation allows each sub-pixel electrode to be independently controlled, enabling the enlargement of the visible range without reducing the glass substrate thickness. The segmented structure creates multiple light emission zones that can be selectively activated to expand the viewing angle while maintaining structural integrity.
2Illumination intensity
If the width of the sub-pixel electrode is reduced to increase the angle θ, then the visible range is enlarged, but the aperture ratio is reduced significantly
Solution Approach 1:
The pixel electrode is segmented into multiple sub-pixel electrodes that can be independently controlled. This allows the effective light-emitting area to be distributed across multiple smaller electrodes, maintaining a high aperture ratio while enabling the barrier to be positioned closer to the pixel electrodes for expanded viewing angles.
Solution Approach 2:
The patent introduces a new spatial dimension by dividing the pixel electrode into multiple sub-pixel electrodes arranged in a specific pattern. This dimensional transformation allows the system to achieve both a high aperture ratio and an enlarged visible range by controlling light emission from multiple discrete points rather than a single continuous electrode.
3Illumination intensity
If the distance H between the barrier and the pixel electrode is decreased to increase the angle θ, then the visible range is enlarged, but the thickness of the color filter glass must be reduced
Solution Approach 1:
By segmenting the pixel electrode into multiple sub-pixel electrodes, the patent enables the barrier to be positioned closer to the pixel electrode structure without requiring thinning of the color filter glass substrate. The segmented electrode structure creates multiple light emission points that can be controlled independently, achieving the desired viewing angle expansion while maintaining the structural integrity and thickness of the glass substrate.
Data Source
AI summary
An array substrate, and a dual view field display device and a manufacturing method thereof are disclosed. The array substrate includes: a plurality of pixel units defined by gate lines and data lines which intersect each other, each of the pixel units including a pixel electrode and a TFT circuit; the pixel electrode of each of the pixel units comprises at least two first pixel electrodes and at least two second pixel electrodes, which are spaced from each other; the TFT circuit of each of the pixel units comprises a first sub-TFT circuit connected to the first pixel electrodes and a second sub-TFT circuit connected to the second pixel electrodes. According to the above array substrate, a dual view barrier can be produced within the display device, and the production costs can be reduced.