Optical Recording Display Transistor Pixel Reset Circuit
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Solution Overview
Problem
Existing optical recording display devices with multilayer electrode structures are complex and require intricate configurations for each pixel, making the reset operation cumbersome and difficult to simplify.
Innovation Solution
An optical recording display device with a simplified structure utilizing a transistor as a pixel switching element, connected to pixel electrodes, a common electrode, and electro-optical material layers, allowing for easy reset operations through controlled scanning and data lines, enabling efficient image erasure and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a multilayer electrode structure is used to enable reset operation, then the reset function is achieved, but the device structure becomes complicated
Solution Approach 1:
The patent merges the reset function with the existing common electrode and scanning line structure. Instead of adding separate reset electrodes, the invention uses the common electrode to apply reset voltage across all pixels simultaneously through the scanning line network, combining multiple functions into existing components.
Solution Approach 2:
The common electrode is given multi-functionality: it serves both as a standard electrode for display operation and as a reset electrode for erasing images. The scanning lines also serve dual purposes by delivering both display signals and reset signals through the same electrical pathways.
2Ease of operation
If a multilayer electrode structure is formed for every pixel, then reset capability is provided, but the manufacturing process becomes intricate
Solution Approach 1:
The invention combines the reset electrode function with the existing common electrode layer, eliminating the need to manufacture separate reset electrodes for each pixel. This reduces the number of fabrication steps and simplifies the overall manufacturing process while maintaining reset capability.
Solution Approach 2:
The reset function is segmented from the pixel-level electrode structure and implemented at the common electrode level, allowing reset operation to be applied globally rather than requiring individual electrode formation at each pixel location.
3Productivity
If scanning lines and data lines are connected to control transistors, then rapid reset operation is achieved, but the circuit structure becomes more complex
Solution Approach 1:
The invention merges the reset control functionality into the existing transistor circuitry. The same scanning lines and data lines that control pixel transistors during display operation are also used to control reset transistors, combining display and reset control functions into a unified circuit architecture.
Solution Approach 2:
The scanning lines and data lines serve universal purposes: they deliver display signals during normal operation and reset signals during erasure. The transistor network is designed to handle both functions through appropriate voltage signaling, reducing the need for separate control pathways.
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
The solution allows for rapid and simplified reset operations and image display with various formats, including handwriting input, while preventing unintended recording due to outside light, by using a transistor-based pixel switching mechanism.
Implementation Method 1
an electro-optical material layer having a memory property which is disposed between the plurality of pixel electrodes and the common electrode
Implementation Method 2
a transistor which is connected to the pixel electrode... as a scanning signal for enabling the transistor to be in a turned on state is input to the scanning lines
Data Source
AI summary
There is provided an optical recording display device having a display section. The display section includes: a plurality of pixels; a plurality of pixel electrodes each of which is formed for each of the plurality of pixels, and is connected to a transistor; a common electrode which is opposite to the plurality of pixel electrodes, and an electro-optical material layer having a memory property which is disposed between the plurality of pixel electrodes and the common electrode; a plurality of scanning lines which is respectively connected to a gate of the transistor and is connected to each other in a direct manner or through an electric circuit; and a plurality of data lines which is respectively connected to a source of the transistor and is connected to each other in a direct manner or through an electric circuit.