Rollable Display Panel Image Continuity During Expansion

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional display panels in electronic devices experience discontinuous images or flicker when expanded or rolled up, disrupting the seamless display of images.

Innovation Solution

The method involves a display panel with a first and second region, where the second region is initially shielded and displays an image before being exposed, ensuring that the image is fully displayed before the region is moved out of the case, thereby maintaining continuous image display during expansion or rolling up.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of moving object

If the display panel is expanded or rolled up, then the display area is increased or adjusted, but the image display becomes discontinuous or flickers

Engineering Contradiction:
Improvedisplay areaVSAvoidimage continuity
Core Design Contradiction:
Area of moving objectVSReliability

Solution Approach 1:

The patent applies preliminary action by displaying a second image in the second region before the region is exposed to the user. The control unit pre-loads and displays content in the hidden region ahead of time, so when the display panel is expanded or rolled up and the second region becomes visible, the image is already fully displayed and continuous, eliminating flicker and discontinuity.

Inventive Principle:
Principle #10Preliminary action

2Loss of time

If the second region is exposed earlier, then the response time is reduced, but incomplete or discontinuous images are displayed

Engineering Contradiction:
Improveresponse timeVSAvoidimage completeness
Core Design Contradiction:
Loss of timeVSManufacturing precision

Solution Approach 1:

The control unit performs preliminary action by displaying the second image in the second region before exposure, ensuring image completeness is achieved in advance. This allows the system to maintain both fast response time and complete image display, as the content is prepared beforehand rather than during exposure.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent ensures continuity of useful action by maintaining continuous image display in the second region before exposure. The control unit keeps the second image displayed continuously in the hidden region, so when exposed, the transition is seamless and maintains image continuity without interruption or flicker.

Inventive Principle:
Principle #20Continuity of useful action

3Adaptability or versatility

If the display panel is made expandable or rollable, then the adaptability is improved, but image discontinuity and flicker occur during status changes

Engineering Contradiction:
Improvestatus adaptabilityVSAvoiddisplay stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The control unit displays the second image in the second region before the display panel transitions to an exposed state. This preliminary action ensures that when the panel expands or rolls up, the image is already ready and continuous, preventing flicker and maintaining display stability during status changes while preserving adaptability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent maintains continuity of useful action by ensuring the second image is continuously displayed in the second region throughout the transition process. This continuity prevents image discontinuity and flicker during status changes, maintaining display stability while the panel adapts to different configurations.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentUS11900837B2Method for operating electronic device having rollable display panel
Publication Date: 2024.02.13 INNOLUX CORP
  • US11900837B2 patent drawing
  • US11900837B2 patent drawing
  • US11900837B2 patent drawing

AI summary

A method for operating an electronic device having a display panel is provided. The display panel has a first region and a second region, in which the first region is out of a case, and the second region is capable of being shielded by the case. First, a first image is displayed in the first region. Then, a second image is displayed in the second region at a first time point when the second region is shielded by the case. After that, the second region out of the case is moved at a second time point, in which the first time point is not later than the second time point.