Touch Display Panel Partitioned Report Rates

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Solution Overview

Problem

Touch display screens face challenges in achieving high report rates for better user experience while minimizing power consumption, as existing solutions either increase power consumption or compromise on performance.

Innovation Solution

A touch display panel with multiple working modes, utilizing different report rates and driving frequencies in separate partitions to optimize touch operations, allowing for high-frequency touch operations in specific partitions without excessive power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If high report rates are used for touch operations, then user experience is improved, but power consumption increases

Engineering Contradiction:

Improvereport rateVSAvoidpower consumption

Core Design Contradiction:

ProductivityVSUse of energy by moving object

Solution Approach 1:

The display screen is divided into multiple regions (first region and second region), allowing each region to operate at different report rates. This segmentation enables the system to apply high report rates only where needed (improving user experience) while maintaining lower report rates in other areas (reducing power consumption).

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different report rates are applied to different regions of the display based on local requirements. The first region can use a higher report rate for tasks requiring responsive touch feedback, while the second region uses a lower report rate for less demanding tasks, optimizing the balance between performance and power consumption locally rather than uniformly across the entire display.

Inventive Principle:

Principle #3Local quality

2Speed

If high report rates are used for touch operations, then response speed is improved, but standby time is reduced

Engineering Contradiction:

Improveresponse speedVSAvoidstandby time

Core Design Contradiction:

SpeedVSDuration of action of stationary object

Solution Approach 1:

The display is segmented into regions with different operational characteristics. By assigning different report rates to different regions, the system achieves fast response speeds in critical areas while conserving battery power overall, thereby extending standby time without sacrificing essential responsiveness.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system dynamically adjusts report rates based on the operational mode and user interaction patterns. During active use, higher report rates provide faster response; during standby or low-activity periods, lower report rates extend battery life, creating a dynamic balance between response speed and standby duration.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS11609659B2Touch display panel, touch display device and method for driving thereof by touching

Publication Date: 2023.03.21 WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO LTD

AI summary

In a touch display panel, different report rates are used in a first partition and a second partition, which may achieve better experience in touch operations with lower power consumption. That is, touch operations performed with a high frequency in a specific partition may be achieved for users without excessively increasing entire power consumption of the display panel. Standby time is prolonged for providing better experience for users.