Display Panel Optical-Area Layout for Under-Display Light Reception
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Solution Overview
Problem
Display devices face challenges in incorporating optical electronic devices without increasing the bezel size or reducing the display area, as these devices need to receive incident light while maintaining image quality and avoiding image quality non-uniformity.
Innovation Solution
A display panel with a light transmission structure that allows optical electronic devices to be placed under the display area, enabling light reception without being exposed on the front surface, and includes distinct optical and normal areas with different light emitting element arrangements to improve transmittance and image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If an optical electronic device is located in a front portion of the display device to receive incident light, then the light reception capability is improved, but the bezel area increases or the display area is reduced
Solution Approach 1:
The patent inverts the conventional arrangement by placing the optical electronic device in the lower portion of the display device instead of the front portion. This allows incident light to be received from the front surface through the display panel structure, eliminating the need for front exposure while maintaining light reception capability. The optical electronic device is positioned in the lower portion where it can receive light that passes through the display area without requiring bezel expansion or display area reduction.
2Illumination intensity
If an optical electronic device is located in a front portion of the display device to receive incident light, then the light reception capability is improved, but the bezel area increases
Solution Approach 1:
The patent inverts the conventional arrangement by placing the optical electronic device in the lower portion of the display device instead of the front portion. This allows incident light to be received from the front surface through the display panel structure, eliminating the need for front exposure while maintaining light reception capability. The optical electronic device is positioned in the lower portion where it can receive light that passes through the display area without requiring bezel expansion or display area reduction.
3Area of stationary object
If a light transmission structure is implemented to allow optical electronic devices under the display area to receive light, then the display area integrity is maintained, but image quality non-uniformity may occur between transmittable and non-transmittable areas
Solution Approach 1:
The patent applies local quality by creating distinct optical areas with different light transmission characteristics within the display area. The display area is divided into a first optical area that is transmittable to the optical electronic device and a normal area that is not transmittable. This localized differentiation allows the transmittable area to maintain high light transmission for the optical device while the normal area maintains standard display characteristics, thereby managing image quality uniformity through spatially differentiated optical properties.
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 solution allows for efficient light transmission to optical electronic devices without compromising image quality or increasing the bezel size, reducing image quality non-uniformity and enhancing design flexibility by maintaining the display area's integrity.
Implementation Method 1
a first light emitting element array disposed in the first optical area and including a plurality of first light emitting elements; a second light emitting element array disposed in the first optical bezel area and including a plurality of second light emitting elements; a third light emitting element array disposed in the normal area and including a plurality of third light emitting elements
Data Source
AI summary
A display device includes including a first optical area, a first optical bezel area located outside of the first optical area, and a normal area located outside of the first optical bezel area. Each of the plurality of light emitting element arrays may include a plurality of light emitting elements, the first optical area may include a first light emitting element array, and the first optical bezel area may include a second light emitting element array. The normal area may include a third light emitting element array. An arrangement of a plurality of first light emitting elements included in the first light emitting element array may be different from either an arrangement of a plurality of second light emitting elements included in the second light emitting element array or an arrangement of a plurality of third light emitting elements included in the third light emitting element array.