Remote Image Correction Data Storage for AMOLED Displays
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Solution Overview
Problem
Existing display technologies, such as AMOLEDs, require image correction data to be stored on a non-volatile-memory (NVM) chip, which increases costs and consumes valuable resources like power and circuit board space.
Innovation Solution
Storing and loading image correction data remotely from the display module, using a memory store separate from the display system, and transmitting this data for correction, eliminating the need for NVM on the display module.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If image correction data is stored on an NVM chip on the display module, then image correction can be performed, but the cost increases and power consumption and circuit board surface area are consumed
Solution Approach 1:
The patent extracts the image correction data storage function from the display module itself and relocates it to an external server. The correction data is acquired optically or electrically from the display module, then transferred to and stored on a remote server, eliminating the need for NVM chips on the display module while maintaining correction capability.
Solution Approach 2:
The patent makes the image correction system universal by enabling multiple display modules to share a common remote server for storing and managing correction data. The server can serve multiple displays, and the correction data can be updated centrally, making the system more versatile and reducing per-unit complexity.
2Quantity of substance
If an NVM chip is added to the display module for storing correction data, then correction data can be stored, but cost increases
Solution Approach 1:
The storage function is extracted from the display module and moved to an external server infrastructure. Instead of incorporating expensive NVM chips into each display module during manufacturing, the correction data is stored remotely on a server that can be accessed by multiple displays, significantly reducing per-unit manufacturing costs.
Solution Approach 2:
The patent replaces expensive, permanent NVM chips with a cost-effective remote storage solution. The correction data can be updated or replaced on the remote server without requiring physical hardware changes to the display modules, making the system more economical and easier to manufacture.
3Quantity of substance
If an NVM chip is added to the display module, then correction data can be stored, but power consumption increases
Solution Approach 1:
The power-intensive storage function is extracted from the display module and relocated to an external server with its own power supply. The display module only needs to communicate with the server to retrieve correction data, eliminating the continuous power consumption that would be required to maintain an NVM chip and its control circuitry on the display module itself.
4Quantity of substance
If an NVM chip is added to the display module, then correction data can be stored, but circuit board surface area is consumed
Solution Approach 1:
The storage function is extracted from the display module's circuit board and moved to an external server. This eliminates the need for NVM chips and associated control circuitry on the display module's circuit board, freeing up valuable surface area for other components or allowing for more compact display designs.
Data Source
AI summary
Active-Matrix Organic Light-Emitting Diode (AMOLED) displays exhibit differences in luminance on a pixel to pixel basis, primarily as a result of process or construction inequalities, or from aging caused by operational use over time. To facilitate image correction, the initial non-uniformity correction data is obtained using methods, such as electrical measurement or a combination of electrical and optical measurement. Typically, the correction data is then stored on a non-volatile-memory chip on the display module itself. The proposed invention offers an alternate method for storing and loading the image correction data, thereby eliminating the need for memory chip in the display module.