Dual-Layer Display Panel Pixel Ratio Optimization
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Solution Overview
Problem
Conventional flat panel displays with non-self-luminous mediums require a constantly powered backlight plate, leading to high power consumption.
Innovation Solution
A display device comprising a backlight plate, a first panel with a liquid crystal layer, and a second panel, where the ratio of the number of pixels between the panels is optimized to reduce power consumption through local dimming and individual control of luminescent elements, allowing for reduced power usage and increased contrast.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a backlight plate is used as a light source in non-self-luminous displays, then illumination is provided, but power consumption increases significantly
Solution Approach 1:
The display panel is divided into multiple independently controllable pixel regions. Each pixel can be individually controlled to be in an opaque or transparent state, allowing selective illumination of different areas. This segmentation enables local dimming where only necessary regions are illuminated, reducing overall power consumption while maintaining required illumination levels.
Solution Approach 2:
The display utilizes dynamic control of pixel transparency states, switching between opaque and transparent configurations. This dynamic adjustment allows the system to adapt illumination levels to actual display needs, providing illumination only when and where required, thereby reducing continuous power consumption of the backlight plate.
2Duration of action of stationary object
If the backlight plate is always turned on to provide illumination, then continuous lighting is achieved, but energy waste increases
Solution Approach 1:
The backlight illumination is applied periodically rather than continuously. Pixels are switched between opaque and transparent states in controlled cycles, with illumination activated only during periods when display content requires it. This periodic action maintains necessary lighting duration while eliminating energy waste during periods when illumination is not needed.
Solution Approach 2:
The patent extracts the illumination function from continuous backlight operation and applies it selectively only to specific pixels and time periods. By taking out the illumination requirement from the always-on backlight system and applying it only where and when needed through controlled pixel transparency, energy waste is eliminated while maintaining necessary continuous lighting coverage.
3Adaptability or versatility
If multiple panels with different pixel counts are combined, then display flexibility increases, but structural complexity increases
Solution Approach 1:
The patent employs multiple display panels with different resolutions and pixel configurations that can be universally controlled through a unified control system. Each panel type can serve multiple display scenarios, and the system adapts to different display requirements by activating appropriate panels or pixel regions, achieving versatility without proportionally increasing structural complexity.
Solution Approach 2:
The display system nests multiple panels with different pixel densities and configurations within a unified control architecture. Higher resolution panels can be nested within or alongside lower resolution panels, with the control system managing them as integrated units. This nesting approach allows flexible display configurations while maintaining relatively simple overall system structure through hierarchical control.
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 reduces power consumption and enhances contrast by optimizing the pixel ratio and control of luminescent elements in the display device, addressing the high power usage of conventional backlight plates in non-self-luminous displays.
Implementation Method 1
a first liquid crystal layer disposed between the first upper substrate and the first bottom substrate
Data Source
AI summary
A display device including a backlight plate, a first panel, and a second panel is provided. The first panel is disposed on the backlight plate and includes a first liquid crystal layer and an upper substrate disposed on the first liquid crystal layer. The second panel is disposed on the first panel and includes a bottom substrate and a second liquid crystal layer disposed on the bottom substrate. The first panel includes a plurality of first pixels. The second panel includes a plurality of second pixels. A ratio relationship between the first panel and the second panel is0.2209×(YX)2≤R2R1≤0.7921×(YX)2wherein Y is a distance between the bottom surface of the upper substrate and the top surface of the bottom substrate, X is a pixel pitch between the second pixels, R1 is the number of first pixels, and R2 is the number of second pixels.