OLED Display Panel Light-Gathering Film Brightness Optimization
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Solution Overview
Problem
OLED display panels have high manufacturing costs and shorter operational life compared to liquid crystal panels, necessitating a solution to reduce costs or extend lifespan.
Innovation Solution
Incorporating a light-gathering film on an OLED display panel to converge light emitted by OLED elements, thereby reducing the number or working current of OLED elements, which increases brightness and potentially extends operational life or decreases manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If OLED elements are used to provide sufficient brightness, then display brightness is improved, but manufacturing cost increases and operation life decreases
Solution Approach 1:
The patent introduces a light-gathering film as an intermediary component between the OLED elements and the viewer. This film converges and redirects light from multiple OLED elements toward a predetermined region, enhancing brightness without requiring increased current or additional OLED elements. The light-gathering film acts as a mediator that optimizes light distribution, thereby maintaining operation life while improving display brightness
Solution Approach 2:
The patent changes the optical parameters of the display system by introducing a light-gathering film with specific refractive index and optical properties. This film modifies light propagation paths and convergence angles, enabling brighter display output without increasing the electrical parameters (current) of the OLED elements, thus preserving their operational lifespan
2Illumination intensity
If OLED elements are used to provide sufficient brightness, then display brightness is improved, but manufacturing cost increases
Solution Approach 1:
The light-gathering film serves as a cost-effective intermediary that replaces the need for additional expensive OLED elements or higher-current driving circuits. By optically concentrating light from existing OLED elements, the film achieves brighter display output without increasing the cost of the light-emitting components themselves
Solution Approach 2:
The light-gathering film is a relatively inexpensive optical component compared to OLED elements. By using this cheaper component to achieve brightness enhancement, the patent avoids the need to purchase and install additional costly OLED elements or upgrade to higher-specification OLEDs, thereby reducing manufacturing costs
3Ease of manufacture
If the number of OLED elements is reduced, then manufacturing cost decreases, but display brightness decreases
Solution Approach 1:
The light-gathering film acts as an optical amplifier that allows fewer OLED elements to produce the same brightness output as more elements would provide without the film. By converging light from the reduced set of OLED elements into a predetermined region, the film compensates for the reduced number of light sources, maintaining display brightness while reducing the total count of expensive OLED elements
Solution Approach 2:
The light-gathering film dynamically redirects and concentrates light paths based on viewing angles and predetermined regions. This dynamic optical routing ensures that even with fewer OLED elements, the concentrated light reaches the viewer's eye effectively, maintaining perceived brightness without requiring additional elements
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 light-gathering film enhances brightness by focusing light into a predetermined region, allowing for a reduction in OLED elements or current usage, thus lowering manufacturing costs and potentially prolonging the operational life of OLED display panels.
Implementation Method 1
The light-gathering film is disposed on the transparent film to converge light emitted by the OLED elements into a predetermined region
Data Source
AI summary
A display panel and a method for fabricating the same are provided. The display panel includes a substrate, a transparent film, and a light-gathering film. The substrate includes organic light emitting diode (OLED) elements. The transparent film is disposed on the substrate. The light-gathering film is disposed on the transparent film. In the fabrication method of the display panel, a substrate is first provided, in which the substrate includes OLED elements. Then, a transparent film is provided, in which the transparent film has a first surface and a second surface opposite to the first surface. Thereafter, a light-gathering material is coated to form a light-gathering film on the first surface of the transparent film. Then, a sensing layer is disposed on the second surface of the transparent film. Thereafter, the transparent film is disposed on the substrate to sandwich the sensing layer between the transparent film and the substrate.