Display Device Time Division Imaging Resolution
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Solution Overview
Problem
Existing display devices face challenges in increasing image resolution without increasing the density of imaging elements, while also incorporating functions like visible and infrared light emission and high-resolution imaging, all while maintaining manufacturing cost efficiency.
Innovation Solution
A display device design where a light-receiving region is placed between light-emitting regions on the same substrate, utilizing time division imaging to enhance image definition without increasing imaging element density, and incorporating a light-blocking layer structure to optimize light exposure and capture efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the density of imaging elements is increased to improve image resolution, then image definition is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent divides the imaging function into two separate operations: display function (light-emitting regions) and imaging function (light-receiving regions). By segmenting these functions spatially, the system achieves high image resolution through time-division imaging without increasing the density of imaging elements, thus reducing device complexity while maintaining measurement precision.
Solution Approach 2:
The patent transitions from spatial density improvement to temporal dimension improvement. Instead of increasing imaging element density in the spatial domain, the system uses time-division imaging where a single imaging element captures multiple images sequentially at different time periods, achieving high resolution through temporal segmentation rather than spatial concentration.
2Adaptability or versatility
If light-receiving and light-emitting regions are arranged in the same pixel to add multifunctionality, then adaptability is improved, but area available for each function decreases
Solution Approach 1:
The patent segments the pixel structure into distinct light-emitting regions and light-receiving regions, with the light-receiving region positioned between light-emitting regions. This spatial segmentation allows each region to be optimized for its specific function while maintaining overall pixel integrity, achieving multifunctionality without compromising the area available for each function.
Solution Approach 2:
The patent implements a universal pixel design where the same substrate and structural framework support both light-emitting and light-receiving functions. The light-receiving region is integrated into the display structure, allowing the device to perform both display and imaging functions using the same physical platform, thereby achieving multifunctionality without requiring separate dedicated components.
3Measurement precision
If time division imaging is used to increase image definition without increasing imaging element density, then manufacturing cost is reduced, but imaging speed and processing time increase
Solution Approach 1:
The patent employs periodic action through time-division imaging, where the light-emitting regions are activated in sequential periods to illuminate different areas. The imaging element captures images during these periodic illumination cycles, allowing high image definition to be achieved through repeated periodic measurements rather than requiring continuous or simultaneous illumination, thus managing time loss through efficient periodic operation.
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 increased image definition and multifunctionality, including visible and infrared light emission, without increasing the number of imaging elements or manufacturing costs, while maintaining high image resolution and signal-to-noise ratio.
Implementation Method 1
a display device having a function of emitting visible light and infrared light
Implementation Method 2
an imaging pixel includes a plurality of windows which are arranged in a matrix and transmit visible light, a photoelectric conversion element having a grid-like formation which extends between the plurality of windows and supplies a signal
Data Source
AI summary
An object is to provide a display device having a function of emitting visible light and infrared light and an imaging function. Another object is to increase the definition without changing the density of imaging elements while the high resolution of an image displayed on a display device is kept. The display device has a layout in which a light-receiving region of an imaging element is provided between light-emitting regions of a plurality of light-emitting elements over one substrate. In the imaging function of the display device, as a means for increasing the definition of a captured image, the definition is increased without changing the density of imaging elements by capturing an image by time division.