AMOLED Mura Compensation Data Encoding and Transmission
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Solution Overview
Problem
Current AMOLED display panels face the Mura phenomenon due to threshold voltage deviations, leading to non-uniform brightness, which complicates the design, increases costs, and reduces transmission efficiency and accuracy of compensation data.
Innovation Solution
A method for acquiring and transmitting compensation data by encoding the screen body module and compensation data to establish a one-to-one identifier relationship, allowing for efficient storage and transmission without the need for Flash memory, using a data driving circuit and NAND-Flash memory, and processing image information through a Mura compensation algorithm.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If compensation data is stored in Flash memory to compensate Mura phenomenon, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The patent extracts the compensation data storage function from the display panel's Flash memory and relocates it to the terminal device's memory. Only essential identifier information remains in the display panel, while comprehensive compensation data is stored externally in the terminal device, reducing panel complexity while maintaining compensation capability.
Solution Approach 2:
The patent shifts the storage dimension from the display panel itself to the terminal device that operates the panel. Compensation data is transmitted from the terminal device to the panel via communication interfaces, changing the spatial and functional dimension of data storage and access.
2Productivity
If compensation data is transmitted through existing paths, then device complexity is maintained, but transmission efficiency and accuracy deteriorate
Solution Approach 1:
The patent segments the compensation data into two parts: identifier information stored in the display panel and comprehensive compensation data stored in the terminal device. This segmentation allows efficient transmission of only necessary identifier data within the panel while enabling access to full compensation data externally.
Solution Approach 2:
The patent introduces the terminal device as an intermediary that stores and manages comprehensive compensation data. The terminal device receives identifier information from the display panel, retrieves corresponding compensation data from its own memory, and applies it, thereby improving transmission efficiency and accuracy.
3Manufacturing precision
If Flash memory is added to display panel for compensation data storage, then manufacturing precision is improved, but loss of substance increases
Solution Approach 1:
The patent makes the terminal device serve multiple functions: it acts as both the operating device for the display panel and the storage device for compensation data. This multi-functionality eliminates the need for dedicated Flash memory in the panel, reducing material costs while maintaining compensation accuracy.
Solution Approach 2:
The patent creates a simplified copy in the display panel containing only identifier information, while the full compensation data is maintained in the terminal device. This copying approach reduces the material requirements in the panel while preserving complete compensation capability in the terminal device.
Data Source
AI summary
The present disclosure relates to a method acquiring and transmitting compensation data and an intelligent terminal. The method for acquiring and transmitting the compensation data includes: respectively encoding a screen body module and compensation data to obtain a first identifier corresponding to the screen body module and a second identifier corresponding to the compensation data, and the second identifier corresponding to the first identifier; identifying the first identifier of the screen body module; acquiring the compensation data that has the corresponding second identifier according to the first identifier; storing the compensation data in a data driving circuit.