Reflective Display Jump Connection Structure for Brightness and Disturbance Control

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Solution Overview

Problem

The use of a black matrix in reflective display panels reduces brightness, leading to decreased reflectivity and visibility of liquid crystal disturbances, which are more noticeable at low refresh rates, affecting the display's performance and user experience.

Innovation Solution

A jump connection structure comprising a substrate, shielding layer, low reflective layer, organic layer, and transparent conductive layer, where the shielding layer reduces electrical interference and the low reflective layer minimizes brightness reduction, while the transparent conductive layer provides electrical connectivity through via structures, allowing for effective shielding and reflection management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If a black matrix is used to avoid light reflection in pixel gaps, then liquid crystal disturbance is reduced, but the reflectivity and brightness of the display panel decrease

Engineering Contradiction:
Improveliquid crystal disturbanceVSAvoidbrightness
Core Design Contradiction:
Object-affected harmful factorsVSIllumination intensity

Solution Approach 1:

The patent applies local quality by differentiating the functional properties of different layers: the shielding layer provides electrical shielding to reduce liquid crystal disturbance, while the low reflective layer provides optical functionality to maintain brightness. Each layer is optimized for its specific purpose rather than using a single material for both functions.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The low reflective layer acts as an intermediary between the shielding layer and the pixel gaps. It allows light to pass through while blocking the harmful electrical interference from reaching the liquid crystal, thus mediating between electrical shielding needs and optical brightness requirements.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Use of energy by moving object

If refresh rate is reduced to lower power consumption, then energy efficiency is improved, but scan patterns and brush patterns become more noticeable

Engineering Contradiction:
Improvepower consumptionVSAvoidscan patterns and brush patterns
Core Design Contradiction:
Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The shielding layer provides preliminary anti-action by blocking electrical interference from data and gate lines before it can affect the liquid crystal. This preemptive shielding prevents scan patterns and brush patterns from occurring in the first place, allowing the display to operate at lower refresh rates without visible artifacts.

Inventive Principle:
Principle #9Preliminary anti-action

Solution Approach 2:

The patent converts the potentially harmful electrical signals from data and gate lines into a beneficial shielding function. By using these same electrical lines to drive the display, the invention creates a shielding effect that prevents interference with the liquid crystal, turning a potential harm into a benefit.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Object-affected harmful factors

If shielding layer is added to reduce electrical interference, then liquid crystal disturbance is reduced, but device complexity increases

Engineering Contradiction:
Improveelectrical interferenceVSAvoidstructure complexity
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent merges the shielding function and the low reflective optical function into a single integrated structure. The low reflective layer is positioned to simultaneously provide electrical shielding and optical functionality, combining two functions into one layer rather than requiring separate components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The low reflective layer is designed to serve multiple functions: it acts as a shielding layer to block electrical interference, provides a low reflective surface to maintain brightness, and serves as an optical layer to control light transmission. This multi-functionality reduces overall device complexity by eliminating the need for separate shielding and optical layers.

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

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

This configuration reduces the perception of liquid crystal disturbances, maintains display functionality, and achieves low power consumption while preserving brightness, enhancing the reflective display's performance and user experience.

Implementation Method 1

electrically disturbances from data lines or gate lines are shielded by the shielding layer

Methodology Applied
Scientific EffectElectrical shielding: Faraday Cage

Implementation Method 2

the brightness of the reflected light among the pixels is reduced by the low reflective layer

Methodology Applied
Scientific EffectLight absorption: Absorption (EM radiation)

Implementation Method 3

The first reflective layer is disposed on a top surface of the organic layer, a side surface of the organic layer, and the first transparent conductive layer

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS11256131B1Jump connection structure of reflective display and manufacturing method thereof
Publication Date: 2022.02.22 GIANTPLUS TECH
  • US11256131B1 patent drawing
  • US11256131B1 patent drawing
  • US11256131B1 patent drawing

AI summary

The present disclosure discloses a jump connection structure of a reflective display comprising a substrate, a shielding layer, a low reflective layer, an organic layer, a first transparent conductive layer, and a first reflective layer. The shielding layer is disposed on the substrate. The low reflective layer is disposed on the shielding layer. The organic layer is disposed on the low reflective layer, wherein the organic layer and the low reflective layer have a first via, and a part of the shielding layer is exposed from the first via. The first transparent conductive layer is disposed on the exposed shielding layer. The first reflective layer is disposed on a top surface of the organic layer, a side surface of the organic layer, and the first transparent conductive layer. In the present disclosure, a reflective display with good display function and low power consumption is implemented by the jump connection structure.