Display Chip Extraction Circuit Reduces AR Device Size
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current augmented reality display devices using micro LED technology require complex separation of RGB data by the upper-level application processor, leading to increased size and costs due to the need for multiple display driver chips and board-level interconnections.
Innovation Solution
The application processor directly sends a to-be-displayed image to each display chip in a module, with each chip extracting the target color channels via an internal circuit, eliminating the need for complex separation by the upper-level processor, and optimizing impedance matching to reduce size and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the upper-level application processor performs complex separation of RGB data to drive multiple display chips, then the display functionality is achieved, but the size and manufacturing costs of the display device increase
Solution Approach 1:
The display chip is equipped with an extraction circuit that autonomously extracts color channel data from the transmitted image data. This self-service capability eliminates the need for the upper-level application processor to perform complex data separation, thereby reducing overall device complexity and manufacturing costs while maintaining full-color display functionality
Solution Approach 2:
The extraction circuit within the display chip extracts only the necessary color channel data (R, G, or B) from the complete image data transmitted by the application processor. This extraction approach simplifies the data processing architecture by removing the need for complex separation operations at the processor level, directly addressing the technical contradiction
2Area of stationary object
If multiple display driver chips are used for three-chip color-combined full-color display, then full-color display capability is achieved, but the size of the display device increases
Solution Approach 1:
Each display chip is designed with universal functionality to handle complete image data and autonomously extract any required color channel through the integrated extraction circuit. This multi-functional design allows a single chip to potentially replace multiple specialized chips, reducing the overall display device size while maintaining full-color display capability
Solution Approach 2:
The extraction circuit and display chip functions are merged into a single integrated unit. This combination eliminates the need for separate data separation hardware and multiple specialized driver chips, thereby reducing the display device size while preserving the ability to achieve three-chip color-combined full-color display
Data Source
Figure 1
Figure 2
Figure 3
AI summary
This application provides an image display method, where the method is applied to a display device. The display device includes an application processor and a display chip module connected to the application processor, where the display chip module includes N display chips, the display chip includes a receive interface and an extraction circuit, the receive interfaces of the N display chips are separately connected to a transmit interface of the application processor, and N is an integer greater than or equal to 2. The method includes: The application processor sends a to-be-displayed image to each of the N display chips, where the to-be-displayed image includes data of M color channels, and M is an integer greater than or equal to 2; and the display chip receives the to-be-displayed image, and extracts, via the extraction circuit, data of P target color channels from the to-be-displayed image for display, where 1≤P<M. The image display method provided in this application can reduce a size and costs of the display device.