Transparent Display Wiring Segmentation to Reduce Light Diffraction

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Solution Overview

Problem

Current transparent display devices face challenges in enhancing transparency due to light diffraction caused by wiring patterns, which affects the clarity of objects viewed through the display.

Innovation Solution

The display device incorporates a unique arrangement of light-emitting and light-transmitting regions with alternating pixel and wiring configurations, where light-transmitting regions are divided into regions of different widths to minimize light diffraction, and a common output switch transistor is used for adjacent sub-pixels to reduce the light-shielded area, allowing for higher transparency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If wiring patterns are introduced to control light-emitting regions, then image display quality is improved, but light diffraction occurs that reduces transparency in light-transmitting regions

Engineering Contradiction:
Improveimage display qualityVSAvoidlight diffraction
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The light-transmitting regions are divided into multiple divided regions by the first and second wirings extending in different directions. This segmentation creates a grid pattern that reduces the size of individual wiring structures, thereby minimizing light diffraction while maintaining the necessary wiring functionality for controlling light-emitting regions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The first wirings and second wirings are arranged in an asymmetric grid pattern where the spacing and orientation differ. This asymmetric arrangement optimizes the balance between providing sufficient wiring coverage for image control and minimizing the overall light-blocking and light-diffraction effects, thereby enhancing transparency.

Inventive Principle:
Principle #4Asymmetry

2Manufacturing precision

If more wirings are added to control adjacent sub-pixels, then image control precision is improved, but light-shielded area increases that reduces transparency

Engineering Contradiction:
Improveimage control precisionVSAvoidlight-shielded area
Core Design Contradiction:
Manufacturing precisionVSArea of stationary object

Solution Approach 1:

Adjacent sub-pixels share common wirings and output switch transistors. For example, the first wiring serves multiple light-emitting regions, and a single output switch transistor controls multiple sub-pixels. This merging reduces the total number of discrete wiring elements and control components, thereby decreasing the cumulative light-shielded area while maintaining precise image control capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The wirings and output switch transistors are designed to serve multiple functions simultaneously. A single wiring structure controls multiple light-emitting regions, and output switch transistors manage multiple sub-pixels. This multi-functionality reduces the overall component count and light-shielded area while preserving full image control precision.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Object-affected harmful factors

If light-transmitting regions are enlarged to increase transparency, then transparency is improved, but control over adjacent pixels becomes more difficult

Engineering Contradiction:
ImprovetransparencyVSAvoidpixel control complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

By dividing light-transmitting regions into smaller divided regions through the wiring grid, the patent enables larger overall light-transmitting areas to be controlled with finer precision. The segmentation creates manageable zones that can be individually addressed by the wiring and output switch transistor network, maintaining control complexity at acceptable levels while maximizing transparency.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS9947725B2Display device
Publication Date: 2018.04.17 MAGNOLIA WHITE CORP
  • US9947725B2 patent drawing
  • US9947725B2 patent drawing
  • US9947725B2 patent drawing

AI summary

A plurality of pixels P and a plurality of light-transmitting regions L are alternately disposed such that a light-transmitting region M1 is disposed between two pixels closest to each other in a X-direction and a light-transmitting region M2 is disposed between two pixels closest to each other in a Y-direction. Each of the light-transmitting regions is divided into a plurality of divided regions by a plurality of wirings WX and a plurality of wirings WY. The divided regions include first regions and second regions that are different from each other in widths in at least one of the X-direction and the Y-direction.