Organic Light Emitting Display Rear Camera Integration
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Solution Overview
Problem
Current organic light emitting display apparatuses face challenges in achieving full-screen displays due to space limitations caused by cameras or sensors on the front surface, which restrict screen design and transmittance in areas where these devices are integrated.
Innovation Solution
The design incorporates a substrate with distinct display areas, including a first area with emission zones and a second area surrounding it, featuring a lower density of sub-pixels in transmissive areas where cameras or sensors are placed, allowing for improved light transmittance by avoiding opaque components like metal electrodes and optimizing sub-pixel arrangement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cameras or sensors are disposed on the front surface of the organic light emitting display apparatus, then optical electronic device functionality is achieved, but screen design is limited and transmittance in the area is reduced
Solution Approach 1:
The patent moves the camera or sensor from the front surface to the rear surface of the display apparatus, utilizing the z-dimension (depth) to resolve the conflict between having optical functionality and maintaining front surface transmittance. The light path is arranged to pass through the display panel from the front, avoiding the camera/sensor on the rear surface.
Solution Approach 2:
The display area is divided into a first display area with normal sub-pixel density and a second display area with reduced sub-pixel density. The camera or sensor is disposed in the second display area, allowing that region to have higher transmittance while maintaining adequate display functionality through the stacked light emitting structures.
2Adaptability or versatility
If cameras or sensors are disposed on the front surface, then optical electronic device functionality is achieved, but screen size is limited due to space occupation
Solution Approach 1:
The patent relocates the camera or sensor to the rear surface of the display apparatus, utilizing the z-dimension to free up front surface area. This enables full-screen display implementation without notches or punch holes, maximizing the usable screen area.
3Adaptability or versatility
If low-resolution pixels are disposed in a specific area for camera integration, then camera placement is enabled, but display resolution in that area is reduced
Solution Approach 1:
The patent eliminates the need for low-resolution pixel areas by moving the camera to the rear surface. The entire front surface can maintain uniform high-resolution sub-pixel density while the camera on the rear surface captures light transmitted through the display.
Solution Approach 2:
The patent creates a second display area with reduced sub-pixel density specifically optimized for camera integration, while maintaining normal sub-pixel density in the first display area. This localized adjustment allows camera placement without compromising the overall display resolution.
4Illumination intensity
If transparent area is created for camera placement, then light transmittance is improved, but display area is reduced
Solution Approach 1:
The patent segments the display area into two functional zones: a first display area with full display functionality and normal sub-pixel density, and a second display area with reduced sub-pixel density optimized for light transmittance. This segmentation allows the camera to be positioned in the second area with improved transmittance while the first area maintains full display coverage.
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 approach enhances visibility and expands the transmissive surface area, enabling full-screen displays without the need for notches or camera holes, thus improving the overall design flexibility and user experience.
Implementation Method 1
a plurality of light emitting stacks emitting light of different colors are stacked
Data Source
AI summary
An organic light emitting display apparatus includes a substrate including a first display area having emission areas and transmissive areas, and a second display area adjacent to the first display area. The organic light emitting display further includes a plurality of sub-pixels disposed in the first display area, and a plurality of transistors electrically connected to the plurality of sub-pixels. The plurality of sub-pixels include a plurality of first sub-pixels disposed in the emission areas of the first display area and having a structure in which a plurality of light emitting stacks configured to emit light of different colors are stacked.