Display Module Test Platform Using Core Processor and I2C Bus
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Solution Overview
Problem
Commercially available display module test devices cannot realistically simulate the display effect of a complete terminal, leading to potential undetected defects in display modules entering the market.
Innovation Solution
A display module test platform featuring a core processor that supports a terminal operating system, connected to the display module via an I2C bus, with additional components like memory, acquisition, input, and UART interfaces, enabling realistic presentation of terminal interfaces and touch functions, and utilizing a bridge module to convert signals for accurate testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If commercially available test devices are used, then testing simplicity is maintained, but the ability to realistically present terminal display effects is insufficient
Solution Approach 1:
The patent creates a simplified copy of a complete terminal system including core processor, operating system, and display driver, which replicates terminal display effects without requiring actual terminal hardware. This allows realistic display effect testing while maintaining test device simplicity.
Solution Approach 2:
The test platform is segmented into modular components: core processor module, operating system module, display driver module, and test interface module. This segmentation enables the complex terminal simulation capability while keeping each individual component manageable and the overall system configurable.
2Reliability
If complete terminal simulation is implemented, then display defect detection capability is improved, but device complexity increases
Solution Approach 1:
The core processor is designed with universal functionality to support multiple operating systems (Android, iOS, Windows, Linux) and various display module types. This multi-functionality improves testing reliability across different products while avoiding the need for separate dedicated test systems for each platform.
Solution Approach 2:
A display driver acts as an intermediary between the core processor and the display module under test. This intermediary layer handles the complexity of different display interfaces and protocols, enabling reliable testing while keeping the overall system architecture manageable through standardized communication interfaces.
3Adaptability or versatility
If terminal operating system support is added, then realistic terminal interface presentation is achieved, but system complexity and resource requirements increase
Solution Approach 1:
The core processor is configured with universal operating system support, capable of running Android, iOS, Windows, or Linux environments. This universality allows the same test platform to adapt to different terminal types and their respective operating systems, improving versatility without requiring multiple specialized devices.
Data Source
AI summary
The present application relates to the field of display technology, and discloses a display module test platform, including a core processor. The core processor is capable of supporting installation of a terminal operating system. A display output terminal of the core processor is connected to a display module to be tested. The display module to be tested includes a touch structure. The touch structure and the core processor communicate with each other via an Inter-Integrated Circuit (I2C) bus.