Functional Panel Pixel Circuit Noise Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing imaging panels face challenges in reducing noise during imaging and reading processes, and in controlling light intensity for reliable and convenient operation.
Innovation Solution
A functional panel design incorporating a first and second driver circuit, with a pixel circuit that includes a light-emitting element and a photoelectric conversion element, where the pixel circuit obtains an image signal and emits light, and the second pixel circuit generates and supplies an imaging signal during periods when the first selection signal is not supplied, using selection signals to control the imaging and light emission processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If imaging and reading operations are performed simultaneously, then productivity is improved, but noise in imaging and reading increases
Solution Approach 1:
The pixel array is divided into two distinct regions: a first region with first pixel circuits for image signal acquisition and a second region with second pixel circuits for imaging signal acquisition. This spatial segmentation allows independent operation of imaging and reading processes, enabling simultaneous productivity improvement while preventing noise interference between the two functions.
Solution Approach 2:
The patent introduces separate selection signals (first selection signal for image signal, second selection signal for imaging signal) that act as intermediaries to control the timing and operation of each pixel circuit region independently, preventing noise coupling while maintaining operational efficiency.
2Ease of operation
If light intensity is not controlled, then the photoelectric conversion element can operate continuously, but the light-emitting element cannot be controlled for reliable imaging
Solution Approach 1:
The light-emitting element's intensity is dynamically controlled by adjusting the drive signal based on the acquired image signal. The control circuit modifies the light-emitting element's output in real-time according to imaging requirements, enabling both operational flexibility and imaging reliability through adaptive intensity modulation.
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 design enables noise reduction in imaging and reading, while allowing for controlled light intensity emission, resulting in a highly convenient and reliable functional panel.
Implementation Method 1
The light-emitting element is electrically connected to the first pixel circuit, and the light-emitting element emits light on the basis of the image signal
Implementation Method 2
The photoelectric conversion element is electrically connected to the second pixel circuit and generates the imaging signal
Data Source
AI summary
A functional panel is provided. The functional panel includes a first driver circuit, a second driver circuit, and a region. The first driver circuit supplies a first selection signal, the second driver circuit supplies a second selection signal and a third selection signal, and the region includes a pixel. The pixel includes a first pixel circuit, a light-emitting element, a second pixel circuit, and a photoelectric conversion element. The first pixel circuit is supplied with the first selection signal, the first pixel circuit obtains an image signal on the basis of the first selection signal, the light-emitting element is electrically connected to the first pixel circuit, and the light-emitting element emits light on the basis of the image signal. The second pixel circuit is supplied with the second selection signal and the third selection signal in a period during which the first selection signal is not supplied, the second pixel circuit obtains an imaging signal on the basis of the second selection signal and supplies the imaging signal on the basis of the third selection signal, and the photoelectric conversion element is electrically connected to the second pixel circuit and generates the imaging signal.