Touch Panel Display Control via Dual-Path Data Processing
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Solution Overview
Problem
Conventional touch panel displays experience delays in responding to user inputs due to complex arithmetic processing required for calibration and filtering, leading to a low operation feeling, especially during quick operations.
Innovation Solution
A display control method that involves obtaining first display data from a touch panel and second display data from a processing unit performing more extensive image generation processing, allowing first and second display information to be displayed on the touch panel, with the second display information being generated directly by the driver IC without needing calibration or filtering, thus reducing processing delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If complex arithmetic processing (calibration and filtering) is performed on touch input data, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The patent divides the processing of touch input data into two separate paths: a first path that performs complex arithmetic processing (calibration and filtering) for high precision, and a second path that performs simple processing for quick response. This segmentation allows the system to handle different types of touch events with appropriate processing levels, resolving the contradiction between precision and speed.
Solution Approach 2:
The patent applies partial processing by performing only essential operations in the second path rather than full calibration and filtering. For certain touch events where maximum precision is not critical, this partial action reduces processing time while still providing adequate response, thus resolving the time delay issue.
2Measurement precision
If complex arithmetic processing is performed for calibration and filtering, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the processing architecture into two distinct paths with different complexity levels. The first path handles complex calibration and filtering operations, while the second path handles simple processing. This segmentation allows the system to maintain high precision capabilities when needed while avoiding unnecessary complexity for routine operations.
Solution Approach 2:
The patent creates a simplified copy of the processing path (second path) that replicates only the essential functions without the complex calibration and filtering operations. This copying approach allows the system to maintain measurement precision through the first path while reducing device complexity through the second path for common operations.
Data Source
AI summary
The present technology relates to a display control device, a display control method, and a program which allow operability of a touch panel display to be improved. A display data generation unit obtains first display data representing a touch input position by a user on a touch panel display, from a first processing unit through a first path, obtains second display data using the first display data from a second processing unit through a second path, the second processing unit performing display image generation processing involving a processing amount larger than a processing amount of the first processing unit, and performs control to allow first display information based on the first display data and second display information based on the second display data to be displayed on the touch panel display. The present technology is applicable to an LCD module and the like, for example.