Array Substrate Pixel Layout for White Balance Without ACC Loss
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Solution Overview
Problem
Large-sized liquid crystal television products face challenges in achieving high resolution and transmittance due to significant differences in aperture ratios of red, green, and blue sub-pixels, requiring accurate color capture (ACC) adjustments that result in substantial transmittance loss.
Innovation Solution
The array substrate design includes sub-pixel regions of different sizes in the first direction, with a size ratio ranging from 1 to 2, allowing the display apparatus to meet white balance requirements without ACC adjustment, thereby improving transmittance by at least 10%.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ACC adjustment is performed to meet white balance requirements, then color accuracy is improved, but transmittance loss increases
Solution Approach 1:
The patent applies preliminary action by pre-designing sub-pixels with different sizes in the first direction during manufacturing, so that the aperture ratios of red, green, and blue sub-pixels are inherently different. This preliminary structural design allows the display to meet white balance requirements without requiring subsequent ACC adjustment, thereby avoiding transmittance loss that would occur if ACC adjustment were performed after manufacturing.
2Loss of energy
If sub-pixel regions have different sizes in the first direction, then transmittance is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies parameter changes by systematically varying the size of sub-pixel regions in the first direction within a controlled range (size ratio from 1 to 2). By establishing specific size relationships between different color sub-pixels (e.g., green sub-pixel larger than red and blue sub-pixels), the design achieves improved transmittance while keeping manufacturing precision requirements manageable through defined parameter ranges rather than requiring absolute precision.
3Ease of manufacture
If aperture ratios of red, green, and blue sub-pixels are made equal, then manufacturing is simplified, but white balance and transmittance performance deteriorate
Solution Approach 1:
The patent applies local quality by making different parts of the display (different color sub-pixels) have different properties - specifically, different sizes in the first direction. The green sub-pixels are designed with larger dimensions than red and blue sub-pixels, creating localized size variations that optimize transmittance and white balance performance while maintaining overall manufacturing simplicity through a systematic design approach.
Data Source
AI summary
An array substrate and a display apparatus are provided. The array substrate includes a base substrate and a plurality of sub-pixels located on the base substrate. The plurality of sub-pixels is arranged in an array along a first direction and a second direction; and the first direction and the second direction intersect with each other. The array substrate includes a plurality of pixel regions; each pixel region includes sub-pixels with different colors arranged along the first direction, and different pixel regions have a same area; in a same pixel region, sub-pixel regions of at least two sub-pixels with different colors have different sizes in the first direction; a size ratio of sub-pixel regions of at least two sub-pixels with different colors in the first direction is 1 to 2; and the sub-pixel region includes an effective light-exiting region.