Functional Panel Pixel Switching for Display and Imaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing imaging panels lack convenience, reliability, and functionality in terms of display, input/output, and data processing capabilities.
Innovation Solution
The implementation of driver circuits, pixel circuits, and conductive films that allow for dynamic control of pixel states and imaging signals, enabling non-display states, imaging under different conditions, and reduced noise through correlated double sampling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a pixel is used for display, then display function is achieved, but imaging function cannot be performed simultaneously
Solution Approach 1:
The pixel's functional state is made dynamic through time-division multiplexing. The pixel circuit switches between display mode and imaging mode based on control signals, allowing the same physical pixel to serve different functions at different times. This dynamic switching resolves the contradiction by making the pixel's function adaptable without adding permanent structural complexity.
Solution Approach 2:
The pixel is designed to perform multiple functions - both display and imaging - using the same physical structure. By incorporating dual control signals (first and second selection signals) that can route different input signals to the pixel circuit, the system achieves multi-functionality without requiring separate dedicated pixels for each function, thus avoiding increased device complexity.
2Productivity
If imaging signal is always obtained, then continuous imaging is achieved, but display quality and contrast are reduced
Solution Approach 1:
The imaging operation is made periodic rather than continuous. The pixel alternates between display periods and imaging periods based on the selection signals. During display periods, the pixel maintains high-quality display state; during imaging periods, it captures imaging signals. This periodic switching resolves the contradiction by ensuring display quality is maintained when imaging is not required.
Solution Approach 2:
The pixel circuit is initialized to a known display state before switching to imaging mode. The control signals are designed to preliminarily set the pixel in the appropriate state for the upcoming operation, ensuring that when the pixel returns to display mode, it does so with optimal display characteristics rather than residual imaging state effects.
3Loss of energy
If non-display state is implemented, then power saving is achieved, but display responsiveness is reduced
Solution Approach 1:
The pixel's operational state is dynamically controlled through selection signals that can quickly switch between active display mode and non-display (imaging or standby) mode. This dynamic control allows the pixel to enter low-power states when display is not needed while maintaining the capability to rapidly resume display operation, resolving the contradiction between power saving and responsiveness.
Solution Approach 2:
The control system monitors display requirements and adjusts pixel states accordingly. When imaging or power saving is needed, the system switches pixels to non-display states; when display content changes or user interaction occurs, the system rapidly activates pixels back to display mode. This feedback-based control resolves the contradiction by making power consumption responsive to actual display needs.
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 provides a highly convenient, useful, and reliable functional panel capable of dynamic display, imaging, and data processing, with improved contrast and reduced noise.
Implementation Method 1
the first element performs display with first brightness on the basis of the first state, the first element performs display with second brightness on the basis of the second state
Implementation Method 2
the second element has a function of generating an imaging signal
Data Source
AI summary
A novel functional panel that is highly convenient, useful, or reliable is provided. The functional panel includes a first pixel and a second pixel, the first pixel comprises a first pixel circuit and a light-emitting element, the second pixel comprises a second pixel circuit and a photodiode. The first pixel circuit is configured to hold a first state on the basis of a control signal comprising a first level, a second state on the basis of a control signal comprising a second level, and a third state on the basis of an image signal. The light-emitting element does not perform light emission in the first state, is configured to perform light emission in the second state, and is configured to perform light emission on the basis of the image signal in the third state.