Liquid Crystal Display Panel Sub-Pixel Arrangement for Brightness
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Solution Overview
Problem
Liquid crystal display panels face challenges in achieving high display brightness with low power consumption due to thickened color resins reducing light transmission ratios and limited aperture ratios, which are further compromised by the complexity of aligning and assembling high-resolution displays.
Innovation Solution
The liquid crystal display panel is designed with a unique arrangement of sub-pixel units and black matrix patterns, where adjacent sub-pixel units with the same color filters are grouped to share a single opening area in the black matrix, and data and gate lines are positioned to minimize the black matrix area, thereby increasing aperture ratios and light transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the color resins are thickened to achieve wide color gamut and excellent image quality, then the color display performance is improved, but the light transmission ratios of the sub-pixel units decrease, which affects the display brightness
Solution Approach 1:
The patent merges adjacent sub-pixel units with the same color filters into a single pixel unit structure, allowing them to share common electrodes and data lines. This consolidation reduces the total number of individual sub-pixel structures, enabling thinner color resins while maintaining adequate light transmission and display brightness through the unified electrode design.
2Illumination intensity
If the aperture ratios of the sub-pixel units are increased to guarantee light transmission ratios, then the display brightness is improved, but the process accuracy requirements increase due to the need to ensure black matrix width larger than light-leaking area
Solution Approach 1:
By combining adjacent sub-pixel units with identical color filters into a single integrated pixel unit, the patent reduces the number of individual alignment interfaces and black matrix structures required. This consolidation simplifies the manufacturing process and reduces the cumulative alignment tolerance requirements while maintaining adequate aperture ratios for light transmission.
3Measurement precision
If the aperture ratio of the sub-pixel unit is decreased to achieve high resolution, then the display resolution is improved, but the light transmission ratio decreases, which affects display brightness
Solution Approach 1:
The patent merges adjacent sub-pixel units with the same color filters into a single pixel unit that shares common electrodes and data lines. This consolidation allows for larger effective aperture areas within each merged unit, maintaining higher light transmission ratios even as individual sub-pixel dimensions are reduced for high-resolution displays.
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 arrangement enhances display brightness by increasing light transmission ratios and reducing power consumption, while avoiding color mixing and allowing for more efficient operation of the liquid crystal display device.
Implementation Method 1
an electric field is generated between the pixel electrodes and the common electrode to control the liquid crystal molecules to deflect, thereby the liquid crystal molecules modulate the transmitted backlight
Implementation Method 2
the color resins may exhibit light of needed colors due to their different transmittances for light in different spectral bands
Data Source
AI summary
In the invention, as the arrangement of the color filters of the sub-pixel units of every two adjacent pixel units in the row direction, from at least one group composed of two adjacent columns of pixel units in the row direction, is changed, so that the color filters of two adjacent sub-pixel units in the row direction, which belong to different two pixel units, have the same color. Moreover, position of the data line connected with the sub-pixel units with color filters of the same color is changed, so that the data line is provided at a side of one of the sub-pixel units with color filters of the same color far away from the other one thereof. Therefore, while the color mixing phenomenon is avoided, a part of the black matrix, which should be provided between the two adjacent sub-pixel units in the row direction, may be omitted.