Display Brightness Adjustment via Sub-Pixel Aperture Optimization
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Solution Overview
Problem
Conventional liquid crystal display apparatuses face high power consumption and manufacturing costs due to the need for increased backlight power to maintain brightness with higher pixel resolution, leading to inefficient aperture ratios.
Innovation Solution
A display brightness adjustment method that configures the aperture ratios of red, green, and blue sub-pixel units by setting transmittance levels for photoresists based on the proportions of red, green, and blue light in the displayed image, allowing for brightness adjustment without enhancing backlight power, through techniques like reducing black matrix size and thin-film transistor repositioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the number of pixels is increased to enhance resolution, then the resolution is improved, but the aperture ratio of each pixel decreases rapidly
Solution Approach 1:
The patent applies different aperture ratios to different color sub-pixels (red, green, blue) based on their specific light transmittance characteristics. By optimizing each color channel's aperture ratio locally rather than using a uniform aperture ratio for all pixels, the system maintains high resolution while compensating for the reduced aperture area through differentiated optical parameter optimization.
2Illumination intensity
If the power of backlight source is increased to maintain the same brightness, then the brightness is maintained, but the power consumption increases
Solution Approach 1:
The patent changes the optical parameters (aperture ratio and light transmittance) of the liquid crystal display system to improve brightness efficiency. By optimizing the aperture ratios and photoresist transmittance values for different color sub-pixels, the system achieves higher brightness output from the same backlight power, thereby reducing power consumption requirements.
3Illumination intensity
If the power of backlight source is increased to maintain the same brightness, then the brightness is maintained, but the manufacturing cost increases
Solution Approach 1:
The patent implements differentiated aperture ratios and photoresist transmittance values for red, green, and blue sub-pixels based on their specific optical characteristics. This local optimization approach improves overall display brightness efficiency without requiring expensive high-power backlight sources, thereby reducing manufacturing costs while maintaining color accuracy and brightness performance.
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 method reduces power consumption and manufacturing costs by simplifying the process of adjusting display brightness, specifically by increasing the aperture ratio of the red sub-pixel unit and adjusting related parameters of green and blue sub-pixel units, thereby maintaining image quality without increasing backlight power.
Implementation Method 1
setting a red-light transmittance of a red photoresist, a green-light transmittance of a green photoresist and a blue-light transmittance of a blue photoresist based on the proportion of red light, the proportion of green light, the proportion of blue light in the displayed image
Data Source
AI summary
A display brightness adjustment method is provided and includes: deriving a setting color temperature of a displayed image and confirming a proportion of red light, a proportion of green light and a proportion of blue light in the displayed image according to the setting color temperature of the displayed image; setting a red-light transmittance of a red photoresist, a green-light transmittance of a green photoresist and a blue-light transmittance of a blue photoresist; configuring an aperture ratio of a red sub-pixel unit, an aperture ratio of a green sub-pixel unit and an aperture ratio of a blue sub-pixel unit.