Integrated Touch Display Driving Module for Sub-10 ms Response
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Incell touch technology experiences excessively long touch response times due to limitations in data processing and transmission, leading to inferior user experience during operations like drawing or writing, with response times often exceeding 30 ms.
Innovation Solution
A touch display driving module incorporating a touch detection chip and a time sequence touch control chip, which generates and processes touch data signals to produce touch point coordinate information and images, allowing for immediate display and response, reducing response time to less than 10 ms by integrating touch control and display control circuitries within a single chip.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If touch data processing and transmission are performed through separate touch screen controller and touch detection system, then data processing can be completed, but touch response time becomes excessively long (greater than 30 ms)
Solution Approach 1:
The patent integrates the touch screen controller and touch detection system into a single integrated circuit chip. The touch detection chip includes both touch detection circuitry and display control circuitry, eliminating the need for separate components. This merging of previously separate systems directly reduces touch response time by removing data transmission delays between independent modules while maintaining complete touch processing functionality.
Solution Approach 2:
The touch detection chip is designed to perform multiple functions within a single device: it detects touch events, processes touch data signals, generates touch point coordinate information, and controls display output. This multi-functional integration allows the chip to handle both touch detection and display control operations, reducing system complexity and improving response time by eliminating inter-component communication delays.
2Loss of time
If touch operation and display operation share the same timeline, then incell touch technology can be implemented, but touch response time increases due to data processing limitations
Solution Approach 1:
The integrated touch detection chip performs touch data processing and generates touch point coordinate information in advance, before display refresh cycles begin. By preprocessing touch data within the same chip that controls the display, the system prepares touch response data ahead of time, ensuring rapid display updates without waiting for separate processing cycles. This preliminary action within the integrated chip structure directly reduces the 30+ ms response time to under 10 ms.
Data Source
AI summary
A touch display driving module for performing a touch display driving operation on a display screen, a touch display driving method for the touch display driving module, and a display device are provided. The touch display driving module includes a touch detection chip, a time sequence touch control chip and a host. The time sequence touch control chip performs data calculation in accordance with a touch data signal to generate touch point coordinate information, generate touch point image information in accordance with the touch point coordinate information, and display the touch point image on a display screen in accordance with the touch point image information, the host performs control response in accordance with the touch point coordinate information to generate control response image information, and returns the control response image information, the time sequence touch control chip displays the control response image on the display screen.