Data Conversion Circuit for Grayscale to Color Display Replacement
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Solution Overview
Problem
The high maintenance and replacement costs of black-and-white or grayscale displays in electronic devices due to the inability to directly replace them with color displays, as the data formats are incompatible.
Innovation Solution
A data conversion circuit that converts black-and-white or grayscale frames into color frames, allowing a color display panel/module to replace a broken or malfunctioning black-and-white liquid crystal display, without requiring an input clock or reference clock, thereby reducing manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a color display panel is used to replace a black-and-white liquid crystal display, then the display quality and color capability are improved, but the data format incompatibility causes the replacement to be impossible without additional conversion circuitry
Solution Approach 1:
The patent introduces a data conversion circuit as an intermediary component between the controller and the color display panel. This conversion circuit translates black-and-white pixel data into color frame data, enabling compatibility between legacy display interfaces and modern color displays without modifying the original controller or display panel hardware
2Ease of manufacture
If black-and-white liquid crystal displays continue to be produced for existing electronic devices, then the existing devices can maintain compatibility, but the production cost increases compared to color displays
Solution Approach 1:
The patent makes color display panels universally compatible with multiple types of controllers and display interfaces by introducing the data conversion circuit. This allows a single color display panel to replace various types of black-and-white displays (segment displays, matrix LCDs, pixel displays) across different electronic devices, achieving multi-functionality and reducing the need for device-specific display hardware
3Ease of repair
If a data conversion circuit is added to enable color display replacement, then the maintenance cost is reduced, but the device complexity increases due to additional conversion requirements
Solution Approach 1:
The data conversion circuit serves as a standardized intermediary layer that simplifies maintenance and replacement procedures. By placing the conversion functionality in a dedicated circuit module rather than embedding it throughout the system, the patent makes the conversion function easily replaceable and maintainable while keeping the overall system architecture simple
Data Source
AI summary
A data conversion circuit for converting black-and-white or grayscale frames for a color display panel/module, and an electronic device and a color display device using the data conversion circuit are disclosed. The data conversion circuit includes a data conversion unit for receiving an input data of the black-and-white or grayscale frame provided by a controller/MCU. The data conversion unit converts the input data into a color frame data for the color display panel/module, and no input clock or reference clock for adjusting an output rate of the color frame data is received or generated by the data conversion circuit.