Display Light-Condensing Layer Asymmetric Slope Angles
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Solution Overview
Problem
Conventional display apparatuses consume high power to increase brightness, which is inefficient and not optimal for reduced power consumption.
Innovation Solution
A display apparatus with a pixel electrode and a light-condensing layer having distinct slope angles on its side surfaces, where the light-condensing layer is designed to increase brightness uniformly across the display area by altering the path of light emitted from the pixel electrode, and an additional layer with a lower refractive index is used to enhance this effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the light-condensing layer has a first first slope angle different from a second first slope angle on opposite side surfaces, then uniform brightness increase is achieved across the display area, but the manufacturing precision requirements increase
Solution Approach 1:
The light-condensing layer is designed with different slope angles on different side surfaces (first side surface with first slope angle, second side surface with second slope angle). This local variation in geometric properties allows each surface to optimally direct light in its specific direction, achieving uniform brightness distribution across the entire display area despite the increased manufacturing complexity
Solution Approach 2:
The patent deliberately introduces asymmetry by making the first slope angle different from the second slope angle on opposite sides of the light-condensing layer. This asymmetric design breaks the symmetry of light distribution that would occur with identical slopes, enabling precise control over light propagation paths to achieve uniform brightness across the display
2Use of energy by moving object
If the light-condensing layer uses a higher refractive index than the additional layer, then light condensing efficiency is improved and power consumption is reduced, but the device complexity increases
Solution Approach 1:
The patent utilizes refractive index as a key parameter to optimize light condensing efficiency. By selecting materials with specific refractive indices (first light-condensing layer with higher refractive index than the additional layer), the design maximizes light control capability, reducing the energy required to achieve desired brightness levels while managing device complexity through controlled material selection
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 achieves a uniform increase in brightness while reducing power consumption by optimizing the light-condensing layer's design and refractive index, leading to improved efficiency and reduced energy usage.
Implementation Method 1
a light-condensing layer disposed over the pixel electrode to correspond to the opening, where a first first slope angle of a first first side surface of the light-condensing layer with respect to a lower surface of the light-condensing layer is different from a second first slope angle of a second first side surface of the light-condensing layer
Implementation Method 2
an additional layer covering the light-condensing layer and having a refractive index less than a refractive index of the light-condensing layer
Data Source
AI summary
A display apparatus includes a pixel electrode, a pixel-defining layer covering edges of the pixel electrode, where an opening is defined through the pixel-defining layer to expose a central portion of the pixel electrode, and a light-condensing layer disposed over the pixel electrode to correspond to the opening. A first first slope angle of a first first side surface of the light-condensing layer with respect to a lower surface of the light-condensing layer is different from a second first slope angle of a second first side surface of the light-condensing layer with respect to the lower surface.