OLED Display Panel with Transparent Filler for Full-Screen Viewing
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Solution Overview
Problem
The design of notch screens in display devices compromises the full-screen display consistency due to components like cameras and sensors, necessitating a solution for achieving a seamless full-screen display.
Innovation Solution
An OLED display panel design with transparent and non-transparent areas, utilizing a polarizer with an opening filled with a transparent filler, and a cover plate to create a full-screen effect, enhancing light transmittance and preventing dust entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a notch screen design is adopted to accommodate components like cameras and sensors, then the components can be installed on the display screen, but the overall consistency of the display screen is affected and full-screen display is compromised
Solution Approach 1:
The patent extracts the polarizer from the transparent display area by creating an opening in the polarizer layer, removing the obstacle to light transmission while maintaining display functionality in the non-transparent area. This allows full-screen display consistency without compromising component installation capability.
Solution Approach 2:
The display screen is segmented into transparent display area and non-transparent display area, with the polarizer selectively removed from the transparent area. This segmentation allows different regions to serve different functions while maintaining overall display consistency.
2Illumination intensity
If the polarizer is removed from the transparent display area to improve light transmittance, then light transmittance is improved, but dust may enter through the opening
Solution Approach 1:
The patent introduces a transparent filler as an intermediary substance to fill the opening in the polarizer. This filler maintains the protective function against dust entry while allowing light to pass through, thus improving light transmittance without compromising against harmful factors.
3Illumination intensity
If the opening in the polarizer is left empty to maximize light transmittance, then light transmittance is maximized, but flash phenomenon occurs at the opening due to refractive index mismatch
Solution Approach 1:
The patent changes the refractive index parameter by filling the opening with a transparent filler whose refractive index matches or closely matches the surrounding materials. This eliminates the refractive index mismatch that causes flash phenomenon while maintaining high light transmittance.
4Manufacturing precision
If a transparent filler with refractive index matching is used to reduce flash phenomenon, then display effect is improved, but the manufacturing process becomes more complex
Solution Approach 1:
The patent applies local quality by filling only the opening area in the transparent display area with transparent filler, while leaving the rest of the display structure unchanged. This localized approach improves display effect uniformity without significantly increasing overall manufacturing complexity.
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 enables a full-screen display with improved light transmittance and reduced flash phenomena, maintaining display consistency and functionality.
Implementation Method 1
a refractive index of the transparent filler is greater than that of air, thereby improving the display effect and remedying a defect of an uneven edge of the polarizer, accordingly reducing a flash phenomenon at the opening of the polarizer
Implementation Method 2
a plurality of first OLED pixel units, arranged in an array and located in the transparent display area; a plurality of second OLED pixel units, located in the non-transparent display area
Data Source
AI summary
The present disclosure relates to a display device and an OLED display panel thereof. The OLED display panel includes a substrate, a first OLED pixel unit and a second OLED pixel unit, an encapsulation layer, a polarizer, and a cover plate, in which an opening of the polarizer between the cover plate and the encapsulation layer is filled with a transparent filler. In a first aspect of the present disclosure, the first OLED pixel unit and the second OLED pixel unit are respectively arranged in a transparent display area and a non-transparent display area, so that when the first OLED pixel unit and the second OLED pixel unit are driven, the transparent display area and the non-transparent display area form a full screen; when the first OLED pixel unit is not driven, the transparent display area performs a light-transmission function.