Display Panel Driving Method for Reducing Data Driver Temperature

Solution Overview

Problem

Conventional liquid crystal display (LCD) technologies face challenges in efficiently managing the display of images with high contrast patterns, such as horizontal stripe patterns, which can lead to increased operating frequencies and surface temperatures of data driving parts, potentially causing life-shortening damage.

Innovation Solution

A method and apparatus for driving a display panel that alternates the output of gate signals and data signals between odd- and even-numbered horizontal lines during different halves of a frame period, using distinct clock signals to control the timing of gate signal outputs, thereby reducing the operating frequency and surface temperature of data driving parts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional LCD technology displays high contrast patterns like horizontal stripe patterns, then the display function is achieved, but the operating frequency and surface temperature of data driving parts increase causing life-shortening damage

Engineering Contradiction:

Improvedata driving part lifespanVSAvoidsurface temperature of data driving parts

Core Design Contradiction:

ReliabilityVSTemperature

Solution Approach 1:

The patent segments the display panel into odd-numbered horizontal lines and even-numbered horizontal lines, displaying images on alternating lines during different time periods. This segmentation allows the data driving part to process fewer lines simultaneously, reducing operating frequency and surface temperature, thereby extending the lifespan of the data driving part while maintaining display functionality.

Inventive Principle:

Principle #1Segmentation

2Reliability

If conventional LCD technology displays high contrast patterns like horizontal stripe patterns, then the display function is achieved, but the operating frequency of data driving parts increases causing life-shortening damage

Engineering Contradiction:

Improvedata driving part lifespanVSAvoidoperating frequency of data driving parts

Core Design Contradiction:

ReliabilityVSSpeed

Solution Approach 1:

The patent segments the display panel into odd-numbered horizontal lines and even-numbered horizontal lines, displaying images on alternating lines during different time periods. This segmentation allows the data driving part to process fewer lines simultaneously, reducing operating frequency and surface temperature, thereby extending the lifespan of the data driving part while maintaining display functionality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent implements periodic action by alternating between displaying images on odd-numbered horizontal lines during a first period and displaying images on even-numbered horizontal lines during a second period. This periodic switching reduces the continuous operating frequency of the data driving part, preventing life-shortening damage while maintaining display performance.

Inventive Principle:

Principle #19Periodic action

3Productivity

If conventional LCD technology displays images on all horizontal lines simultaneously, then complete image display is achieved, but the operating frequency and temperature increase reducing component lifespan

Engineering Contradiction:

Improvedisplay update rateVSAvoiddata driving part lifespan

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent segments the display panel into odd-numbered horizontal lines and even-numbered horizontal lines, displaying images on alternating lines during different time periods. This segmentation allows the data driving part to process fewer lines simultaneously, reducing operating frequency and surface temperature, thereby extending the lifespan of the data driving part while maintaining display functionality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent implements periodic action by alternating between displaying images on odd-numbered horizontal lines during a first period and displaying images on even-numbered horizontal lines during a second period. This periodic switching reduces the continuous operating frequency of the data driving part, preventing life-shortening damage while maintaining display performance.

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS9601069B2Method of driving a display panel and a display apparatus performing the method

Publication Date: 2017.03.21 SAMSUNG DISPLAY CO LTD

AI summary

A method of driving a display panel is provided. The method includes displaying a first image on at least one odd-numbered horizontal line of the display panel along a first direction and a second direction during a first period of a frame period and displaying a second image on at least one even-numbered horizontal line of the display panel along the first direction and second direction during a second period of the frame period.