Display Panel Layered Light Guides for Electrode-Blocked Transmission
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Solution Overview
Problem
The light transmission effect of display panels is poor due to light blocking by electrode patterns, leading to reduced transmittance and inefficient light output.
Innovation Solution
The display panel incorporates opening regions on the electrode pattern with efficiency enhancement structures, including laminated light transmitting layers and protrusion structures to control light direction and enhance frontal light output, and optionally includes additional efficiency enhancement structures on the light-emitting regions to improve light concentration and transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If electrode patterns are used to drive light-emitting elements, then the light-emitting elements can be driven to emit light, but the electrode patterns block light transmission, reducing transmittance and light output efficiency
Solution Approach 1:
The electrode pattern is segmented by introducing opening regions that divide the electrode structure into multiple parts, allowing light to pass through the gaps between electrode segments, thereby reducing light blocking while maintaining electrical functionality
Solution Approach 2:
Different regions of the display panel are given different optical properties: the electrode regions maintain opacity for electrical function, while the opening regions and efficiency enhancement structures are optimized for light transmission and directional control, creating local quality variations that resolve the contradiction
2Loss of energy
If opening regions are introduced in the electrode pattern, then light transmission is improved, but the electrode structure becomes more complex
Solution Approach 1:
The opening regions are merged with the efficiency enhancement structures (light transmitting layers and protrusion structures) to create a integrated optical component that serves both as an electrode support and a light management structure, reducing overall device complexity while maintaining benefits
3Illumination intensity
If efficiency enhancement structures with multiple light transmitting layers are added, then frontal light output efficiency is improved, but the device structure becomes more complex
Solution Approach 1:
The efficiency enhancement structures perform multiple functions simultaneously: the light transmitting layers guide light direction, the protrusion structures control light emission angles, and the layered configuration enhances both frontal light output and light sensor transmission, making the structure multi-functional and justifying its complexity
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 increases the transmittance rate and frontal light output efficiency of the display panel, enhancing the light transmission effect and improving the operation of light sensors like cameras by increasing the amount of light directed to them.
Implementation Method 1
a refractive index of the first light transmitting layer is less than a refractive index of the second light transmitting layer
Implementation Method 2
a protrusion structure is disposed on one of the first light transmitting layer and the second light transmitting layer towards the other of the first light transmitting layer and the second light transmitting layer
Data Source
AI summary
Provided is a display panel, including: a base substrate; a light-emitting layer, disposed on the base substrate, wherein the light-emitting layer comprises a plurality of effective light-emitting regions; a first electrode pattern, disposed on the base substrate where the light-emitting layer is disposed, wherein the first electrode pattern comprises a plurality of opening regions, an orthographic projection of each of the plurality of opening regions on the base substrate being between orthographic projections of the plurality of effective light-emitting regions on the base substrate; and a plurality of first efficiency enhancement structures, disposed on the base substrate where the first electrode pattern is disposed, wherein orthographic projections of the plurality of first efficiency enhancement structures on the first electrode pattern are overlapped with the opening regions, each of the plurality of first efficiency enhancement structures comprises a first light transmitting layer and a second light transmitting layer.