Color Backlight Display Module Alleviating Crosstalk
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Solution Overview
Problem
Current color-film-less liquid crystal display modules suffer from low luminance and serious color crosstalk issues.
Innovation Solution
A display module comprising a color backlight module and a liquid crystal display module, where the backlight module has multiple backlight sources with light-emitting elements of different colors, and a driving apparatus that sequentially drives liquid crystal molecules to turn over and control the emission of light-emitting elements to alleviate color crosstalk and enhance luminance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If color-film-less liquid crystal display module uses color backlight module to realize color display, then color display capability is improved, but luminance is low and color crosstalk occurs
Solution Approach 1:
The display panel is divided into multiple display subareas along the column direction, with corresponding backlight subareas. Each backlight subarea contains multiple light-emitting elements of different colors (red, green, blue) that can be independently controlled. This segmentation allows precise spatial control of light emission, preventing color crosstalk between adjacent pixels while maintaining high luminance through individual element optimization.
Solution Approach 2:
The driving apparatus sequentially drives liquid crystal molecules in each display subarea to turn over before activating the corresponding backlight subarea. This preliminary action ensures that the liquid crystal molecules are properly oriented to display the intended color before light is emitted, preventing color crosstalk and ensuring accurate color reproduction while maintaining high luminance.
2Adaptability or versatility
If color-film-less liquid crystal display module uses color backlight module to realize color display, then color display capability is improved, but color crosstalk occurs
Solution Approach 1:
The display panel is divided into multiple display subareas along the column direction, with corresponding backlight subareas. Each backlight subarea contains multiple light-emitting elements of different colors (red, green, blue) that can be independently controlled. This segmentation allows precise spatial control of light emission, preventing color crosstalk between adjacent pixels while maintaining high luminance through individual element optimization.
Solution Approach 2:
The driving apparatus sequentially drives liquid crystal molecules in each display subarea to turn over before activating the corresponding backlight subarea. This preliminary action ensures that the liquid crystal molecules are properly oriented to display the intended color before light is emitted, preventing color crosstalk and ensuring accurate color reproduction while maintaining high luminance.
3Object-generated harmful factors
If driving apparatus sequentially executes N driving processes for N colors, then color crosstalk is alleviated, but driving time increases
Solution Approach 1:
The display panel is divided into multiple display subareas along the column direction, with corresponding backlight subareas. Each backlight subarea contains multiple light-emitting elements of different colors (red, green, blue) that can be independently controlled. This segmentation allows parallel processing of different colors in different subareas, reducing the total driving time while maintaining effective color control to prevent crosstalk.
Solution Approach 2:
The driving apparatus sequentially drives liquid crystal molecules in each display subarea to turn over before activating the corresponding backlight subarea. This preliminary action is optimized to minimize the time required for molecular reorientation while ensuring proper color display, thereby reducing the overall driving time penalty.
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
The solution effectively alleviates color crosstalk and achieves high display luminance, resulting in an excellent display effect by ensuring timely liquid crystal molecule turnover and individual control of light-emitting elements.
Implementation Method 1
each of the backlight sources including light-emitting elements of N colors
Implementation Method 2
driving liquid crystal molecules in the display subareas to turn over
Data Source
AI summary
A display module is provided. In the display module, a liquid crystal display panel has a plurality of display subareas. A color backlight module has a plurality of backlight subareas in a one-to-one correspondence to the plurality of display subareas. A driving apparatus may sequentially drive liquid crystal molecules in the display subareas to turn over, and after driving the liquid crystal molecules in each display subarea to turn over, drive a light-emitting element of one color included in each backlight source in one corresponding backlight subarea to emit light.