Liquid Crystal Display Panel with Asymmetric Color-Blocking Sub-Pixels
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Solution Overview
Problem
Conventional liquid crystal display devices with color filters require high power consumption to achieve 64-color displays, especially due to the need for multiple gray scale voltages, which can lead to issues like current leakage and abnormal brightness in middle gray scales.
Innovation Solution
The liquid crystal display panel design includes a first substrate with data and scanning lines forming pixels, each with two sub-pixels of approximately equal area, and a color filter layer with regions of different color-blocking areas to achieve multi-color display using only high and low voltages, reducing power consumption and preventing color mixing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple gray scale voltages are used to achieve 64-color display, then display color richness is improved, but power consumption increases
Solution Approach 1:
Each pixel is divided into two sub-pixels with different color-blocking areas. The first sub-pixel has a smaller color-blocking area while the second sub-pixel has a larger color-blocking area. This segmentation allows the display to use only high and low voltages instead of multiple gray scale voltages, reducing power consumption while maintaining multi-color display capability through differential color-blocking effects
Solution Approach 2:
The color-blocking areas of the two sub-pixels are deliberately made different to create local quality differences. The first sub-pixel's color-blocking area is smaller while the second sub-pixel's color-blocking area is larger. This local quality difference enables the system to achieve multiple display states using only two voltage levels, solving the contradiction between color richness and power consumption
2Use of energy by moving object
If frequency is lowered to reduce power consumption, then power consumption decreases, but current leakage occurs causing brightness anomaly
Solution Approach 1:
The invention dynamically adjusts the color-blocking area distribution between two sub-pixels rather than relying on frequency modulation. By using different color-blocking areas in the first and second sub-pixels, the system can achieve multiple gray levels through spatial distribution rather than temporal frequency changes, avoiding current leakage issues while maintaining low power consumption
3Use of energy by moving object
If frequency is lowered to reduce power consumption, then power consumption decreases, but color representation becomes abnormal
Solution Approach 1:
The invention introduces asymmetry in the color-blocking areas of the two sub-pixels. The first sub-pixel has a smaller color-blocking area while the second sub-pixel has a larger color-blocking area. This asymmetric design enables the system to achieve accurate color representation through differential blocking effects, eliminating the need for high-frequency modulation and avoiding color abnormalities while maintaining low power consumption
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 design achieves a multi-color display with ultra-low power consumption, minimizing the impact of voltage changes on brightness and reducing flickering and afterimage problems, while allowing for a 64-color display without the need for multiple gray scale voltages.
Implementation Method 1
liquid crystals are placed between a first substrate and a second substrate, and two electrodes can generate an electrical field to drive electrical field effects of liquid crystal molecules
Implementation Method 2
a color filter layer, i.e., a color-blocking layer. Every pixel usually includes three sub-pixels, corresponding to a red (R) color-blocking area, a Green (G) color-blocking area, and a Blue (B) color-blocking area in the color filter
Data Source
AI summary
A liquid display panel, and a display device are provided. The liquid display panel includes a first substrate and a color filter layer. The first substrate includes a plurality of data lines and a plurality of scanning lines. The color filter layer includes a plurality of color-blockers. The data lines and the scanning lines intersect to form a plurality of pixels arranged in an array. Each pixel includes a first sub-pixel and a second sub-pixel adjacent to each other. Each first sub-pixel includes a first pixel electrode, and each second sub-pixel includes a second pixel electrode. The first sub-pixel and the second sub-pixel have an approximately same area. Each color-blocker corresponds to one of the pixels arranged in an array, and includes a first region and a second region, corresponding to the first sub-pixel and the second sub-pixel in a same pixel. The second region and the first region have a same color. The second region has a color-blocking region larger than a color-blocking region in the first region.