Pixel Structure Integrating 3D Display and Touch via Dual-Gate TFTs
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Solution Overview
Problem
Existing display technologies fail to integrate 3D display with touch technology, resulting in complex production processes and high costs, while consumers seek 3D touch screen solutions.
Innovation Solution
A pixel structure incorporating a bottom-gate and top-gate thin film transistor (TFT) configuration, where the upper and lower source electrodes are connected, and a touch unit converts touch signals into electrical signals transmitted to sub-pixel electrodes at different speeds, enabling stereoscopic displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If 3D display and touch technology are integrated using existing methods, then 3D display function is achieved, but production process becomes complex and costs increase
Solution Approach 1:
The patent combines 3D display and touch detection functions into a single integrated pixel structure. The pixel electrode serves dual purposes: displaying images and detecting touch positions. The pixel switch controls both display signals and touch detection signals through the same electrode structure, eliminating the need for separate touch sensor layers and simplifying the production process while achieving both 3D display and touch functionality
Solution Approach 2:
The pixel electrode is designed as a multi-functional component that simultaneously performs display and touch detection functions. The same electrode structure is used for both purposes, and the pixel switch handles both display signal control and touch signal detection, making the system more universal and reducing overall device complexity
2Ease of operation
If separate touch panel and display panel are used, then touch detection and display functions are achieved, but device structure becomes complex
Solution Approach 1:
The patent merges the touch panel and display panel into a single integrated structure. The pixel electrode serves as both the display electrode and the touch detection electrode. The pixel switch simultaneously controls display signals and detects touch positions, eliminating the need for separate touch sensor layers and reducing overall device structural complexity
Solution Approach 2:
The pixel electrode is designed as a universal component that performs both display and touch detection functions. The same physical structure is used for dual purposes, and the pixel switch handles both types of signals, making the system more universal and structurally simpler
3Ease of manufacture
If touch position signal is transmitted to both sub-pixel electrodes simultaneously, then simple signal control is achieved, but 3D display effect is lost
Solution Approach 1:
The patent implements dynamic signal transmission where the pixel switch differentially controls the transmission timing of touch position signals to the first and second sub-pixel electrodes. By adjusting the transmission speed differently for each electrode based on touch position, the system creates dynamic signal patterns that enable 3D display effects while maintaining relatively simple signal control architecture
Solution Approach 2:
The pixel switch changes the transmission parameter (speed/timing) of signals to different sub-pixel electrodes based on touch position. This parameter variation creates different signal states in the liquid crystal molecules for each eye, enabling stereoscopic 3D display effect while using a relatively simple signal control mechanism
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 integration simplifies the production process, enhances display resolution, and achieves a 3D display effect by synchronizing signal transmission to sub-pixel electrodes, improving the overall display quality.
Implementation Method 1
a pixel structure for a display device, the pixel structure comprising: an electroluminescent layer
Implementation Method 2
the pixel structure blocks halogen bonds between adjacent pixels of different colors, thereby preventing color shifts
Data Source
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AI summary
The present disclosure provides a pixel structure, a display apparatus and a driving method and a manufacturing method for the pixel structure. The pixel structure includes a pixel electrode and a pixel switch including a gate electrode, an upper source electrode, an upper drain electrode, an upper active layer, a lower source electrode, a lower drain electrode, and a lower active layer. A bottom-gate TFT is formed by the upper source electrode, the upper active layer, the upper drain electrode and the gate electrode; a top-gate TFT is formed by the lower source electrode, the lower active layer, the lower drain electrode and the gate electrode. The upper source electrode is connected to the lower source electrode. The pixel electrode includes a first sub-pixel electrode and a second sub-pixel electrode. The first sub-pixel electrode is connected to the upper drain electrode for receiving a first signal; the second sub-pixel electrode is connected to the lower drain electrode for receiving a second signal from the bottom-gate TFT different from the first signal. In the present disclosure, the touch technology and 3D display technology are integrated as a whole, the production process is relatively simple and a resolution of the display is improved.