Display Panel Response Speed Measurement Device
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Solution Overview
Problem
Current technologies fail to effectively integrate display panel control and frame quality measurement, and are inadequate for measuring response speed at high frame rates, particularly in 3D image applications.
Innovation Solution
A measuring device comprising a microcontroller, photo sensors, a signal amplifier, and a converter, which controls the display panel to provide test patterns in different grayscales and senses brightness to calculate response speed, integrating display panel control and frame quality measurement, and capable of operating at high frame rates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional separate systems are used for display panel control and frame quality measurement, then device complexity is reduced, but measurement precision and integration effectiveness deteriorate
Solution Approach 1:
The patent merges the display controller and measurement device into an integrated system. The display controller not only controls the display panel but also functions as part of the measurement device, receiving control commands and transmitting test patterns while the measurement device senses brightness and calculates response speed. This integration eliminates the need for completely separate control and measurement systems, achieving both precision and manageable complexity.
Solution Approach 2:
The display controller is designed to perform multiple functions: it controls the display panel to output test patterns in different grayscales and simultaneously serves as part of the measurement system by receiving control commands and coordinating with the brightness sensing components. This multi-functionality reduces the need for dedicated separate components while maintaining measurement precision.
2Productivity
If display panel switches between test patterns at high frame rates, then productivity and applicability to 3D applications are improved, but the ability to accurately measure response speed deteriorates with conventional techniques
Solution Approach 1:
The measurement device implements a feedback mechanism where the display controller receives control commands to switch between test patterns at specific frame rates, outputs test patterns, and the measurement device senses the brightness in real-time. The system uses this feedback information to calculate response speed accurately even at high frame rates, including 3D application frame rates, by coordinating the switching timing with the sensing timing.
Solution Approach 2:
The system uses periodic switching of test patterns between different grayscales at controlled frame rates. The display controller periodically switches between test patterns in response to control commands, and the measurement device periodically senses brightness at corresponding time points. This periodic action enables accurate response speed measurement at high frame rates by establishing a predictable timing relationship between pattern switching and brightness measurement.
3Productivity
If manual measurement methods are used, then device complexity is reduced, but loss of time and productivity deteriorate
Solution Approach 1:
The measurement system is designed to operate automatically without manual intervention. The display controller automatically switches between test patterns in response to control commands, and the measurement device automatically senses brightness and calculates response speed. This self-service capability eliminates the need for manual operation while maintaining manageable system complexity through integrated automation.
Solution Approach 2:
The patent replaces manual mechanical measurement operations with an automated electronic system. Instead of manual timing and measurement operations, the system uses electronic control commands to switch test patterns and electronic sensing to measure brightness automatically. This substitution of manual mechanical operations with electronic automation improves productivity while the integration keeps the system complexity manageable.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively measures response speed, reduces human resources and costs, and is adaptable to various display panel sizes and frame rates, enhancing automation and flexibility in display panel testing.
Implementation Method 1
The photo sensor senses the test frames associated with the test pattern on the display panel, and provides a corresponding sensing signal. The sensing signal is associated with brightness and a response signal.
Data Source
AI summary
A measuring device for measuring a response speed of a display panel is provided. The measuring device includes a microcontroller and at least one photo sensor. The microcontroller provides a control command, according to which a display controller of the display panel provides test pattern to the display panel. The photo sensor senses a test frame displayed corresponding to the test pattern by the display panel, and provides a corresponding sensing signal associated with brightness and a response signal. According to the response signal, the response speed of the display panel is calculated.