Universal Display Drive Chip for Wearables
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Solution Overview
Problem
The development of wearable products with display functions, such as smart watches and virtual reality glasses, faces increased complexity and cost due to the need for different types of drive chips for various applications, leading to longer development cycles and higher costs.
Innovation Solution
A display drive method that receives an original display data signal, samples it to obtain a display mode signal, a gate line scanning signal, and an initial data voltage signal, and shifts the initial data voltage signal based on the display mode to generate a data voltage signal, allowing the display apparatus to control its operation independently of specific drive chips.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If different types of drive chips are used for different wearable products, then the display function can be properly implemented for each specific application, but the device complexity and development costs increase
Solution Approach 1:
The patent implements a universal drive chip that can drive different types of display panels (TN, STN, OLED, etc.) through software configuration rather than hardware differentiation. The control chip includes a display type determination module that identifies the connected display type and automatically adjusts driving parameters, eliminating the need for multiple specialized drive chips while maintaining reliable display functionality across different wearable devices.
2Reliability
If different types of drive chips are used for different wearable products, then the specific display requirements can be met, but the development cycle becomes longer
Solution Approach 1:
The patent changes the approach from hardware parameter differentiation (different drive chips for different displays) to software parameter configuration. The universal drive chip stores multiple sets of driving parameters in memory and dynamically selects appropriate parameters based on the detected display type, enabling rapid adaptation to different wearable display requirements without extending the development cycle.
3Adaptability or versatility
If multiple drive chips are provided for different wearable applications, then various display types can be supported, but the manufacturing cost increases
Solution Approach 1:
The patent designs a single universal drive chip that can support multiple display types (TN, STN, OLED, and other liquid crystal displays) through software configuration. The chip includes a display type determination module and configurable driving parameters that adapt to different display characteristics, eliminating the need to manufacture multiple specialized drive chip variants and thereby reducing manufacturing costs while maintaining broad adaptability.
Data Source
AI summary
The present disclosure discloses a display drive method, a display drive apparatus, a display apparatus, and a wearable device. The display drive method includes: receiving an original display data signal; sampling the original display data signal based on a clock input signal to obtain a display mode signal, a gate line scanning signal, and an initial data voltage signal; shifting the initial data voltage signal according to the display mode signal to obtain a data voltage signal; and controlling the display apparatus to display based on the display mode signal, the gate line scanning signal, and the data voltage signal.