Charge Trapping TFT Pixel Data Storage
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Solution Overview
Problem
As display technologies advance to ultra-high resolution and ultra-low power, the increased amount of data to be expressed on displays leads to higher power consumption and longer response times, necessitating a solution for efficient data storage and access.
Innovation Solution
The implementation of a charge trapping memory TFT in display pixels, which replaces the traditional driving TFT, enables efficient storage and retrieval of pixel data, reducing power consumption and increasing data access speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resolution of displays increases to ultra-high resolution, then the amount of data that needs to be expressed on the displays increases, but the power consumption occurring when continuously outputting screens through the display increases
Solution Approach 1:
The patent implements a memory function within the display pixel using a charge trapping layer that stores pixel data in advance. This preliminary storage of data in the trapping layer eliminates the need for continuous power supply to maintain pixel states, thereby reducing power consumption while maintaining ultra-high resolution display capabilities
Solution Approach 2:
The patent extracts the memory function from the traditional driving TFT and implements it through a dedicated charge trapping layer structure. By separating the data storage function (in the trapping layer) from the data driving function, the system can maintain high resolution while reducing the power required for continuous screen output
2Quantity of substance
If the amount of data that needs to be expressed on the display increases, then the response time for utilizing display pixel data increases, resulting in delay
Solution Approach 1:
The charge trapping layer stores pixel data in advance before it is needed for display. This preliminary action of pre-storing data in the trapping layer allows for rapid data retrieval and utilization, thereby maintaining fast response times even when handling increased data volumes in ultra-high resolution displays
Solution Approach 2:
The charge trapping layer acts as an intermediary between the data input and the display output. It temporarily holds and manages pixel data, enabling efficient data handling and rapid access without creating delays, thus serving as a buffer that improves response time while accommodating larger data volumes
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach results in a low-power, high-efficiency display pixel with improved data access speed, capable of handling increased data volumes without significant power consumption or delay.
Implementation Method 1
A charge trapping memory may operate based on a method of trapping and storing charges in a trapping layer
Implementation Method 2
a first light-emitting light source configured to emit light through a current applied based on the CTTFT
Implementation Method 3
a second light-emitting light source configured to emit light to erase data based on the memory function of the CTTFT
Data Source
AI summary
The present disclosure relates to a display pixel that has a memory function, including a switching TFT configured to control whether the pixel is driven, a charge trapping TFT configured to control a pixel driving current and perform a memory function, a storage capacitor configured to maintain a voltage applied based on the switching TFT, a first light-emitting light source configured to emit light through a current applied based on the CTTFT, and a second light-emitting light source configured to emit light to erase data based on the memory function of the CTTFT.