Electronic Display Resolution Detection Method
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Solution Overview
Problem
Existing methods for electronic display devices connected to computer hosts fail to accurately detect and adjust to new resolutions, leading to display distortion when different devices with varying resolutions are used, as they only consider line rate, frame rate, and horizontal total, without properly acquiring simulated resolution data.
Innovation Solution
A method that calculates candidate resolutions by receiving a line rate, frame rate, and horizontal total, determines a horizontal blank, and adjusts the display to select an optimum resolution by increasing or decreasing the horizontal display, thereby avoiding distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display card simulates new resolution using original resolution, then the display card can support different resolutions, but the electronic display device cannot acquire the simulated resolution data, causing display distortion
Solution Approach 1:
The patent implements a feedback mechanism where the electronic display device sends detection parameters (line rate, frame rate, horizontal total) back to the display card, and the display card responds by providing simulated resolution parameters. This closed-loop feedback enables the display card to adapt to different resolutions while ensuring the electronic display device receives accurate resolution data for distortion-free display.
Solution Approach 2:
The patent introduces detection parameters (line rate, frame rate, horizontal total) as intermediaries between the display card and electronic display device. These parameters serve as a communication bridge, allowing the display card to convey simulated resolution information indirectly through parameter transmission, resolving the issue of the electronic display device being unable to directly acquire simulated resolution data.
2Device complexity
If the display card supports only one resolution, then the design is simple, but it cannot adapt to different electronic display devices with varying resolutions
Solution Approach 1:
The patent utilizes parameter changes (line rate, frame rate, horizontal total) as a mechanism for the display card to support multiple resolutions without complex hardware redesign. By dynamically adjusting these parameters based on the connected electronic display device, the display card achieves resolution compatibility while maintaining relatively simple design architecture.
Solution Approach 2:
The patent makes the display card universal by enabling it to work with different types of electronic display devices (4:3, 16:9, 16:10) through a single interface. The display card detects the connected device type and automatically adjusts its output parameters, achieving multi-functionality without requiring multiple dedicated display cards for different resolutions.
3Device complexity
If the electronic display device detects only line rate, frame rate, and horizontal total, then the detection process is simple, but it cannot determine the simulated resolution, leading to display distortion
Solution Approach 1:
The patent adds another dimension to the detection process by introducing horizontal blank calculation based on the detected parameters. Instead of directly detecting resolution, the system calculates horizontal blank as an additional parameter, which provides indirect information about the simulated resolution. This dimensional expansion enables more accurate resolution determination while keeping the direct detection process relatively simple.
Data Source
AI summary
A resolution detection method for an electronic display device. The method first receives a line rate, a frame rate, and a horizontal total of an electronic display device to calculate candidate resolutions. A horizontal display of the electronic display device is then received. Next, a horizontal blank is calculated according to the line rate and the horizontal display. An adjustment method for application to the electronic display device is determined according to the horizontal blank. Finally, an optimum resolution is selected from the candidate resolutions according to the determined adjustment method.