Transparent Conductive Layer Exposure for Reflective Display Brightness

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Solution Overview

Problem

Reflective and trans-reflective displays have low power consumption but suffer from low reflectance, which affects display brightness.

Innovation Solution

The electronic device incorporates a first reflective layer positioned at the gaps between reflective sub-layers of a second reflective layer, enhancing reflectance and display brightness by optimizing the reflective efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If a reflective display uses a single reflective layer, then the device complexity is low, but the reflectance and display brightness are insufficient

Engineering Contradiction:

Improvedisplay brightnessVSAvoidstructure complexity

Core Design Contradiction:

Illumination intensityVSDevice complexity

Solution Approach 1:

The reflective layer is divided into multiple reflective sub-layers (first reflective layer and second reflective layer) with different orientations. The first reflective layer includes first and second reflective sub-layers with reflective axes crossing at an angle (e.g., 45 degrees), while the second reflective layer includes third and fourth reflective sub-layers with different angular relationships. This segmentation allows each sub-layer to reflect light from different directions, collectively achieving higher overall reflectance and display brightness without requiring a completely new complex structure

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces angular/directional dimension to the reflective structure by arranging reflective sub-layers at different angles (e.g., 0 degrees, 45 degrees, 90 degrees relative to each other). Instead of simply adding more reflective layers in the vertical dimension, the invention utilizes angular distribution in the horizontal plane to capture and reflect ambient light from multiple directions, thereby enhancing display brightness while maintaining structural simplicity

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Area of stationary object

If reflective sub-layers are arranged closely to reduce gaps, then the area coverage is improved, but the manufacturing precision and alignment difficulty increase

Engineering Contradiction:

Improvereflective area coverageVSAvoidalignment precision

Core Design Contradiction:

Area of stationary objectVSManufacturing precision

Solution Approach 1:

The reflective layer is segmented into multiple sub-layers (first, second, third, and fourth reflective sub-layers) with distinct angular orientations. Each sub-layer can be manufactured and positioned independently with its specific angular relationship to others, making the alignment process more manageable compared to creating a single complex reflective structure. The segmentation allows for modular manufacturing where each sub-layer's precision requirements are clearer and more achievable

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different regions of the reflective structure have different local qualities - each reflective sub-layer is designed with specific angular orientations (e.g., first and second sub-layers at 45 degrees to each other, third and fourth sub-layers at different angles). This local differentiation of reflective properties at specific angular positions allows light from different directions to be reflected effectively, improving overall area coverage while maintaining manageable manufacturing precision for each local region

Inventive Principle:

Principle #3Local quality

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 provides improved reflective efficiency and display brightness by utilizing a first reflective layer at the gaps of the second reflective layer, resulting in enhanced display performance.

Implementation Method 1

The first reflective layer is disposed corresponding to a gap between two adjacent ones of the plurality of reflective sub-layers... provide an enhanced reflecting effect

Methodology Applied

Scientific EffectReflection: Reflection

Data Source

PatentUS12429727B2Electronic device comprising a transparent conductive layer exposed by an opening of a reflective sub-layer

Publication Date: 2025.09.30 INNOLUX CORP

AI summary

An electronic device provided herein includes a substrate, a circuit layer, a first insulating layer, a first reflective layer, a second insulating layer, a second reflective layer. The circuit layer is disposed on the substrate. The first insulating layer is disposed on the circuit layer. The first reflective layer is disposed on the first insulating layer. The second insulating layer is disposed on the first reflective layer. The second reflective layer is disposed on the second insulating layer. The second reflective layer includes a plurality of reflective sub-layers, and a portion of the first reflective layer is disposed corresponding to a gap between two adjacent ones of the plurality of reflective sub-layers.