Display Panel With Integrated Eye Fundus Imaging and IR Sensing
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Solution Overview
Problem
Current display devices lack the capability to be manufactured at low cost while providing various functions and obtaining information about a user's eye, such as eye fatigue detection and health monitoring, with high precision.
Innovation Solution
A head-worn electronic device incorporating a display panel with both light-emitting and light-receiving elements on the same substrate, utilizing organic electroluminescence for image display and eye fundus imaging, featuring a transistor with a semiconductor layer made of single crystal silicon or oxide semiconductor for efficient power management and high-resolution imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple functions (display and eye imaging) are integrated into a single device, then versatility and functionality are improved, but device complexity increases
Solution Approach 1:
The patent combines light-emitting elements and light-receiving elements on the same substrate to create a display device that simultaneously performs display and eye fundus imaging functions. This merging of previously separate functions into a single integrated device reduces the need for multiple separate components and simplifies the overall system architecture.
Solution Approach 2:
The display device is designed with universal functionality to perform both image display and eye health monitoring. The light-emitting elements serve dual purposes: displaying images and providing illumination for eye fundus imaging, while the light-receiving elements capture both display information and eye reflection data, enabling one device to perform multiple functions.
2Measurement precision
If organic light-emitting elements are used for both visible and nonvisible light emission, then measurement capability and diagnostic function are improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent utilizes organic light-emitting elements capable of emitting different wavelengths including visible and nonvisible (infrared) light. By changing the emission parameter (wavelength) of the same light-emitting element, the device can perform multiple functions: visible light for display and infrared light for eye fundus imaging, eliminating the need for separate light sources and reducing manufacturing complexity.
3Use of energy by moving object
If single crystal silicon or oxide semiconductor is used for the transistor semiconductor layer, then power efficiency and device performance are improved, but manufacturing complexity increases
Solution Approach 1:
The patent employs transistors with semiconductor layers made of single crystal silicon or oxide semiconductor materials. These materials provide superior electrical characteristics and power efficiency compared to conventional amorphous silicon. The use of these advanced semiconductor materials enables lower power consumption while maintaining high-performance operation of the display and imaging functions.
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 precise recognition of eye-related information, including eye fatigue and health monitoring, with reduced manufacturing costs and improved power efficiency, while providing a novel and versatile display system.
Implementation Method 1
A light-emitting element utilizing an EL phenomenon is known. This light-emitting element is a self-luminous type... The light-emitting element is an organic light-emitting element that emits visible light... The light-emitting element is an organic light-emitting element that emits nonvisible light.
Implementation Method 2
the electronic device includes a light-emitting element and a light-receiving element, and makes diagnosis with an image of the fundus of the eye of the user obtained by capturing an image of the user's eye
Data Source
AI summary
An object of one embodiment of the present invention is to provide a novel display device or a display system. Another object of one embodiment of the present invention is to provide a display device or a display system which can be manufactured at low cost and can provide various functions to a user. A pixel includes light-emitting elements whose emission colors are different from each other, a light-emitting element IR, a light-receiving element PS, and an infrared light sensor IRS. An image of a fundus of an eye is captured using the light-emitting element emitting an infrared light as a light source, and imaging is performed by the light-receiving element IRS. A substrate of a display panel is manufactured using a single crystal Si substrate capable of microfabrication and higher integration.