Multifunctional Light-Emitting Receiving Element for Display Image Capture
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Solution Overview
Problem
Display apparatuses face challenges in achieving high-resolution image capturing with low noise and reduced component count, while integrating image display and touch panel functions.
Innovation Solution
A display apparatus incorporating light-emitting/receiving elements with a multifunctional pixel circuit design, including transistors and capacitors, that switches between image display and image capturing modes to optimize functionality and reduce noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a display apparatus integrates image capturing function with display function, then the versatility and functionality of the device is improved, but the device complexity and number of components increases
Solution Approach 1:
The light-emitting/receiving element serves dual functions: emitting light for display purposes and receiving light for image capturing. This multi-functional element eliminates the need for separate display and image sensor components, thereby reducing device complexity while maintaining enhanced functionality.
Solution Approach 2:
The patent combines the display function and image capturing function into a single integrated structure. The light-emitting/receiving element is positioned within the display panel, merging what would traditionally be separate components (display elements and image sensor) into one unified system.
2Measurement precision
If high-resolution image capturing is achieved, then the measurement precision is improved, but the device complexity increases due to additional components
Solution Approach 1:
The light-emitting/receiving element provides high-resolution image capturing capability while serving as part of the display structure. This eliminates the need for separate high-resolution sensor arrays, achieving measurement precision improvement without proportional increase in device complexity.
3Measurement precision
If noise reduction is achieved in image capturing, then the measurement precision is improved, but the device complexity increases due to additional noise suppression components
Solution Approach 1:
The patent utilizes the light-emitting function of the element to actively illuminate the subject being captured, converting the potential harm of insufficient lighting (which causes noise) into a benefit. By emitting light from the display element itself, the system achieves low-noise image capturing without requiring separate flash or illumination components.
4Device complexity
If the number of components is reduced, then the device complexity is decreased, but the functionality and versatility may be compromised
Solution Approach 1:
The light-emitting/receiving element simultaneously provides display output and image capture input functions. This multi-functionality ensures that reducing component count does not compromise versatility, as the same element performs multiple roles that would traditionally require separate components.
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
Enables high-resolution image capturing with reduced noise and a novel configuration that integrates image display and touch panel functions, reducing the number of components and enhancing device performance.
Implementation Method 1
Light-emitting elements utilizing an electroluminescence (hereinafter referred to as EL) phenomenon (also referred to as EL elements)
Implementation Method 2
The light-emitting/receiving element has a function of emitting light of a first color and a function of receiving light of a second color
Data Source
AI summary
A display apparatus capable of image capturing with high sensitivity is provided. The display apparatus is configured to include first to third switches, a first transistor, a second transistor, and a light-emitting/receiving element. The first switch is electrically connected to a gate of the first transistor. The second switch is positioned between one of a source and a drain of the first transistor and one electrode of the light-emitting/receiving element. The third switch is positioned between the one electrode of the light-emitting/receiving element and a gate of the second transistor. The other of the source and the drain of the first transistor is supplied with a first potential. The other electrode of the light-emitting/receiving element is supplied with a second potential. The light-emitting/receiving element has a function of emitting light of a first color and a function of receiving light of a second color.