Flat Display Panel Curved Image Optical Devices
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Solution Overview
Problem
Existing methods for creating curved display panels, such as bending flat substrates, result in defects like light leakage and abnormal color display, and require flexible designs leading to high costs and low yields.
Innovation Solution
A display panel with optical devices, such as lenticular lenses or liquid crystal lenses, arranged on a flat display substrate to create a curved image without physical deformation, where optical parameters like focus length or deflection degree vary by region to simulate a curved surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a flat display substrate is physically bent to form a curved display panel, then a curved display effect is achieved, but defects like light leakage and abnormal color display occur due to fringe field deformation
Solution Approach 1:
The patent replaces the mechanical bending approach with an optical system consisting of a flat display substrate, collimating lens, curved reflective member, and imaging lens. The curved display effect is achieved through optical path manipulation rather than physical substrate deformation, thereby eliminating fringe field distortion and associated display defects.
Solution Approach 2:
The patent introduces a curved reflective member as an intermediary element between the flat display substrate and the imaging lens. This intermediary component redirects light rays to form a curved image without requiring the display substrate itself to be bent, thus maintaining electrical field integrity while achieving the desired curved display effect.
2Shape
If many modules in the display panel adopt flexible design to realize curved display, then curved display is achieved, but production yield decreases and cost increases
Solution Approach 1:
The patent divides the optical system into separate functional modules: a flat display substrate, a collimating lens, a curved reflective member, and an imaging lens. This segmentation allows each component to be manufactured independently using standard rigid manufacturing processes, maintaining high production yield while achieving the curved display effect through optical assembly rather than flexible substrate manufacturing.
Solution Approach 2:
The patent creates an optical copy or virtual image of the flat display content on a curved surface. Instead of manufacturing a physically curved flexible display, the system projects a curved image representation, allowing standard rigid flat panel manufacturing to be used while still delivering a curved display experience to the user.
3Manufacturing precision
If optical devices with varying optical parameters are used at different positions, then a more accurate curved surface image is formed, but device complexity increases
Solution Approach 1:
The patent implements local quality by positioning a collimating lens at each pixel or sub-pixel location on the flat display substrate. Each collimating lens has specific optical parameters optimized for its local position, enabling precise control of light rays from different regions of the display to accurately form the curved surface image.
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
Enables a curved display effect on a flat substrate, reducing production complexity and costs while avoiding defects like light leakage, and enhancing user experience with improved image formation.
Implementation Method 1
light emitted through the display surface of the flat display substrate passes through the optical devices and forms an image in a curved surface
Implementation Method 2
the optical devices are liquid crystal lenses
Data Source
AI summary
A display panel and a display device are disclosed. The display panel includes a flat display substrate and optical devices. The optical devices are arranged on a display surface of the flat display substrate, and light emitted through the display surface of the flat display substrate passes through the optical devices and forms an image in a curved surface.