Bridge Unit for Display Controller Initialization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display modules enter a Built-in Self Test (BIST) mode and display self-test images due to prolonged initialization times of display controllers, particularly in Field Programmable Gate Array (FPGA) based systems, leading to poor user experience.
Innovation Solution
A bridge unit is introduced between the display module and the display controller to detect the initialization status of the display controller and output a pre-stored video signal when the display controller is not in a normal operation state, preventing the display of self-test images during initialization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the display controller initialization time is prolonged to ensure proper system startup, then the system stability is improved, but the user experience deteriorates due to display of self-test images
Solution Approach 1:
The bridge unit performs preliminary action by storing the first video signal in advance and proactively switching to this signal before the display controller completes its initialization. This prevents the display module from showing self-test images during the initialization period, improving user experience without compromising system stability.
Solution Approach 2:
The bridge unit acts as an intermediary between the display module and the display controller. It receives the video signal from the video signal source and conditionally switches between the first video signal (from external source) and the second video signal (pre-stored), thereby mediating the information flow to prevent self-test image display while maintaining proper system initialization.
2Reliability
If the display module enters BIST mode during controller initialization, then the system can self-test properly, but the display shows unnecessary self-test images increasing user wait time
Solution Approach 1:
The bridge unit performs preliminary action by preparing the first video signal in advance and proactively switching to this signal before the display controller completes its initialization. This prevents the display module from showing self-test images during the initialization period, improving user experience without compromising system stability.
Solution Approach 2:
The bridge unit acts as an intermediary between the display module and the display controller. It receives the video signal from the video signal source and conditionally switches between the first video signal (from external source) and the second video signal (pre-stored), thereby mediating the information flow to prevent self-test image display while maintaining proper system initialization.
Data Source
AI summary
Provided are a display module control system, a display apparatus, a control method, a computer device and a medium. The display module control system includes a display module, a display controller driving the display module and a bridge unit connecting the display module and the display controller, wherein the display controller is configured to output a first video signal according to an external video source; the bridging unit is configured to determine whether the display controller is in normal operation state according to the first video signal received, output the first video signal to the display module to play the first video signal when the display controller is in normal operation state, and output a second video signal pre-stored to the display module to play the second video signal when the display controller is not in normal operation state.