OLED Display Panel With Integrated Gaze Sensing for Brightness Control
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Solution Overview
Problem
Existing display devices, particularly OLED displays, face challenges in achieving compactness and reducing component count while integrating optical devices for applications like augmented reality and virtual reality, and lack the ability to adjust brightness based on user gaze position.
Innovation Solution
An electronic device is designed with an optical device integrated into a display panel, incorporating an image sensing device to detect user gaze and adjust brightness, and includes a substrate with display and non-display areas, featuring a display panel with organic light-emitting devices and separate chips for image processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If an optical device is integrated into a display panel, then compactness is improved and component count is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent merges the optical device and display panel into a single integrated structure. The optical device is positioned in close proximity to the display panel, with the image sensing device integrated into the display assembly, eliminating the need for separate optical components and reducing overall device volume while maintaining functional independence of each subsystem
Solution Approach 2:
The display panel serves multiple functions: it acts as both a visual display device and an optical sensing platform. The image sensing device is integrated into the display panel structure, allowing the same physical space to fulfill both display and optical detection functions, thereby reducing component count and improving compactness
2Adaptability or versatility
If an image sensing device is integrated into the display panel, then user gaze detection capability is improved, but device complexity increases
Solution Approach 1:
The image sensing device is integrated into the display panel structure, with the sensor positioned behind or within the display layers. This merging allows the display panel to simultaneously function as a visual output device and an optical sensing platform, enabling gaze detection without adding separate external sensors
Solution Approach 2:
The display panel itself acts as an intermediary structure that houses the image sensing device. The optical path is designed such that light passes through or reflects off the display panel to reach the sensor, using the display structure as a mediator to achieve both display and sensing functions
3Ease of operation
If brightness adjustment based on gaze position is implemented, then user experience is improved, but control system complexity increases
Solution Approach 1:
The system implements a feedback loop where the image sensing device continuously monitors user gaze position, and the display panel adjusts its brightness based on the detected gaze data. This automatic feedback mechanism improves user experience by adapting the display to viewing conditions without requiring manual intervention
Solution Approach 2:
The display system performs self-adjustment of brightness based on gaze detection. The integrated sensor and display work autonomously to optimize viewing conditions, eliminating the need for external control systems or manual user adjustment while enhancing user experience
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 integration of an optical device into the display panel enhances compactness, reduces component count, and allows for dynamic brightness adjustment based on user gaze, improving user experience in augmented and virtual reality applications.
Implementation Method 1
a display panel including an organic light-emitting device arranged in the display pixels of the substrate
Implementation Method 2
an optical device including an image sensing device mounted on the substrate and being configured to receive light and generate image data
Data Source
AI summary
An electronic device in some examples includes a substrate including a display area having display pixels and a non-display area surrounding the display area, a display panel having an organic light-emitting device arranged in the display pixels of the substrate, and an optical device including an image sensing device mounted on the substrate and a logic unit operably connected to the image sensing device. The image sensing device is configured to receive light and generate image data.