Optical Assembly Redirecting Light to Peripheral Display Areas
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Solution Overview
Problem
Flat display devices face limitations in display area due to the presence of image driving circuits, leading to divided images when multiple panels are used to display a single image, and there is a luminance reduction at the borders between the display area and peripheral regions.
Innovation Solution
The implementation of an optical assembly on the display panel, comprising a supporting member, an optical member with stacked transparent and reflective films, and a transparent member with high transmissivity, which overlaps the peripheral area and reduces border lines by directing light from the display area to the peripheral area, thereby enhancing display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the image driving circuit is disposed at the peripheral area to increase display area, then the display area is increased, but the peripheral area cannot display images and only shows borders
Solution Approach 1:
The patent introduces an optical assembly that redirects light from the display area to the peripheral area, transforming the peripheral area from a non-display region to a display-capable region. This solves the contradiction by enabling image display in the peripheral area without reducing the overall display area, as the light redirection occurs in a different spatial dimension (from display area to peripheral area).
Solution Approach 2:
The optical assembly acts as an intermediary between the display area and the peripheral area, transferring light from the display area to illuminate and display images in the peripheral area. This mediator enables the peripheral area to display images without requiring additional driving circuits in that region, thus maintaining the increased display area while adding image display capability to the periphery.
2Area of stationary object
If multiple display panels are used to display a single image, then the display area is increased, but the image is divided into sub-images on each panel
Solution Approach 1:
The optical assembly merges the display area and peripheral area into a unified display surface. By redirecting light from the display area to the peripheral area, the system creates a continuous image across both regions, eliminating the need for multiple separate panels and ensuring image continuity without division into sub-images.
Solution Approach 2:
The patent uses optical redirection in a different dimension to extend the display area continuously. Instead of using multiple discrete panels that create visible boundaries, the optical assembly projects light from the display area onto the peripheral area, creating a seamless continuation of the image across the entire surface without panel divisions.
3Ease of manufacture
If the optical assembly redirects light to the peripheral area, then image display is enabled in the peripheral area, but luminance is reduced at the borders
Solution Approach 1:
The patent applies local quality by using a reflective film with specific reflectivity characteristics in the optical assembly. The reflective film is positioned to redirect light specifically to the peripheral area while maintaining appropriate luminance levels. This localized optical property enhancement ensures that the peripheral area receives sufficient light for image display without excessive luminance reduction, addressing the border luminance issue through material property optimization.
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 seamless image display on the peripheral areas of flat display devices, reducing luminance loss and improving overall display quality by effectively utilizing the optical assembly to redirect light and minimize border visibility.
Implementation Method 1
an optical member, a covering member covering the display panel, and a transparent member between the display panel, the optical member and the covering member
Implementation Method 2
The second face is tilted with respect to the first face. The third face connects the first face and the second face. The fourth face connects the first face and the second face.
Implementation Method 3
a transparent member between the display panel, the optical member and the covering member. The transparent member may have a transmissivity equal to or greater than about 0.9
Implementation Method 4
an optical member including a plurality of optical sheets each including a transparent film and a reflective film stacked therein
Implementation Method 5
The transparent film and reflective film may be stacked along a second direction substantially perpendicular to the first direction.
Data Source
AI summary
A display device includes a display panel, and an optical assembly on the display panel. The display panel includes a display area configured to display an image, and a peripheral area adjacent to the display area. The optical assembly overlaps the display area and the peripheral area. The optical assembly includes a supporting member overlapping the peripheral area, an optical member, a covering member covering the display panel, and a transparent member between the display panel, the optical member and the covering member. The optical member includes a first face contacting the display area, a second face opposite to the first face and tilted with respect to the first face, a third face contacting the supporting member, and a fourth face opposite to the third face.