Display Data Correction for Irregular Screens

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Solution Overview

Problem

Irregularly-shaped display screens face issues with poor image display due to cross talk and data transmission errors caused by mutual coupling between data traces and the driving power source, leading to data losses and transmission errors.

Innovation Solution

A display data correction method that determines whether pixel units on an irregularly-shaped display screen are in an area requiring correction and adjusts the display data to reduce or eliminate cross talk by setting the data to a predefined gray scale value or high impedance state, or by gradually changing gray scale values in a specific direction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If data transmission is performed on irregularly-shaped display screens using conventional methods, then the display screen can be driven, but cross talk occurs between data traces and driving power source causing poor image display

Engineering Contradiction:
Improveimage display qualityVSAvoidcross talk
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent applies preliminary action by correcting display data before it is transmitted to the display screen. The correction process identifies pixel units in irregular areas and pre-adjusts their grayscale values or timing to prevent cross talk from occurring during normal operation. This proactive correction eliminates the harmful interaction between data traces and driving power sources before it can degrade image quality.

Inventive Principle:
Principle #10Preliminary action

2Adaptability or versatility

If the display screen uses an irregular shape to achieve diversified design, then adaptability is improved, but data transmission errors increase due to mutual coupling

Engineering Contradiction:
Improvedisplay screen shape diversityVSAvoiddata transmission accuracy
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies local quality by treating different regions of the display screen differently. Pixel units in irregular areas are identified and subjected to specific correction measures such as grayscale adjustment or timing modification, while regular areas maintain normal transmission. This localized correction approach allows the display to achieve diversified shapes without compromising data transmission accuracy in critical regions.

Inventive Principle:
Principle #3Local quality

3Device complexity

If conventional display driving methods are used on irregularly-shaped screens, then device complexity is reduced, but manufacturing precision requirements increase due to cross talk effects

Engineering Contradiction:
Improvedisplay driving systemVSAvoidpixel unit positioning and data alignment
Core Design Contradiction:
Device complexityVSManufacturing precision

Solution Approach 1:

The patent applies parameter changes by modifying display data parameters (grayscale values, timing) for pixel units in irregular areas. Instead of changing the physical structure or adding complex driving circuitry, the solution adjusts electrical parameters of the data signals to compensate for mutual coupling effects. This maintains simple device architecture while achieving the precision needed to eliminate cross talk.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11238791B2Display data correction method, display driving method and display device
Publication Date: 2022.02.01 KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
  • US11238791B2 patent drawing
  • US11238791B2 patent drawing
  • US11238791B2 patent drawing

AI summary

The present application provides a display data correction method, a display driving method and a display device. The display data correction method includes: receiving display data corresponding to pixel units of an irregularly-shaped display screen; determining whether the pixel units are in an area to be corrected; and if the pixel units are in the area to be corrected, correcting the display data corresponding to the pixel units to generate corrected display data.