Transflective Display Light-Gathering Unit for Image Clarity
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Solution Overview
Problem
Conventional transflective LCD devices inefficiently transmit backlight lights through transmission regions and reflect ambient lights from reflection regions, resulting in poor image clarity and high power consumption.
Innovation Solution
A transflective display device with a display panel having transmission and reflection regions, where a light-gathering unit with micro-structured elements is directly positioned on the upper or lower surface, enhancing light transmission and reflection efficiency by using adhesive materials with refractive indices less than the light-gathering elements, made of transparent materials like acrylic or plastic, to increase illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional transflective LCD device is used, then both transmission and reflection functions are provided, but light transmission efficiency is low and ambient light reflection efficiency is low
Solution Approach 1:
The display panel is segmented into multiple transmission regions and reflection regions, with each region optimized for its specific function. The light-gathering unit is also segmented into multiple light-gathering elements corresponding to different reflection regions, allowing independent optimization of light management in each zone.
Solution Approach 2:
The light-gathering elements are designed with curved surfaces (convex or concave) to focus and redirect light. This curvature enables the elements to efficiently gather ambient light and direct it toward the reflection regions, improving reflection efficiency without requiring additional backlight power.
2Measurement precision
If a conventional transflective LCD device is used, then both transmission and reflection regions are provided, but image clarity is poor
Solution Approach 1:
The light-gathering unit is integrated directly with the display panel structure, merging light management functions into the existing display architecture. This combination improves image clarity by enhancing light utilization while avoiding the complexity of separate, standalone light management systems.
Solution Approach 2:
Different regions of the display panel are assigned different optical properties - transmission regions are optimized for backlight transmission while reflection regions are optimized for ambient light reflection. The light-gathering elements are strategically placed only in reflection regions, providing localized optimization that enhances overall image clarity without uniform complexity throughout the entire device.
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 efficiently transmits backlight lights through transmission regions and reflects ambient lights from reflection regions, providing a clearer image with reduced power consumption.
Implementation Method 1
using adhesive materials with refractive indices less than the light-gathering elements
Data Source
AI summary
A transflective display device includes a display panel and a light-gathering unit. The display panel includes a plurality of transmission regions and reflection regions, and has an upper surface and a lower surface. The light-gathering unit is directly disposed and positioned on the upper surface of the display panel, and includes a plurality of light-gathering elements, which are corresponding to the reflection regions respectively.