Optical Splice Display Layout for True Borderless Screens
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Solution Overview
Problem
Current display devices cannot achieve a true borderless display, and splice display devices face issues with displaying images at the splicing seams, resulting in a subpar overall display effect.
Innovation Solution
The display device incorporates a main-display region and a sub-display region surrounding the main-display region, featuring a display panel with main-pixel and sub-pixel regions. An optical element, such as a plano-convex lens, is used to amplify the light exit angle of the sub-display region, effectively turning the frame region into a display area with the same effect as the main display region, thus achieving a true borderless display. Additionally, this configuration allows for seamless splicing of display devices to form a splice display device without visible seams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If side-gluing narrow-bezel technology is used to reduce frame width, then the frame width is shortened, but true borderless display cannot be achieved and splicing seams remain visible
Solution Approach 1:
The patent introduces a light guide layer that redirects light from the main display region into the frame region, transforming the spatial distribution of light in a new dimension. This allows the frame region to display images by receiving light from below, rather than having pixels directly in the frame area, achieving borderless display without reducing frame width physically
Solution Approach 2:
The light guide layer acts as an intermediary between the main display region and the frame region. It captures light from the main display area and redirects it to illuminate the frame region, enabling the frame to display images without direct pixel structures, thus achieving seamless splicing
2Area of moving object
If the frame region is converted to a display area with amplified light exit angle, then the screen-to-body ratio is enhanced and borderless display is achieved, but the device complexity increases due to additional optical elements
Solution Approach 1:
The light guide layer serves multiple functions: it acts as a structural component of the display device, a light redirecting element, and an image formation medium for the frame region. By making this single layer multi-functional, the patent avoids adding separate complex optical systems while still achieving the desired effect
Solution Approach 2:
The patent changes the optical parameters of the frame region by introducing the light guide layer with specific refractive properties. This alters the light exit angle and distribution in the frame area, enabling image display without changing the physical pixel structure or adding complex optical components
3Productivity
If splice display devices are assembled with traditional narrow-frame technology, then multiple devices can be connected, but visible splicing seams appear and overall display effect deteriorates
Solution Approach 1:
The patent applies a specialized light guide layer specifically in the frame region surrounding the main display area. This local structural modification enables each display device to have a borderless appearance, and when multiple devices are spliced, the frame regions align to create seamless connections without visible seams
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 enhances the screen-to-body ratio, providing an immersive visual experience and improving the display effect of both individual display devices and splice display devices, thereby increasing product competitiveness and operating profit.
Implementation Method 1
an optical element disposed on the display panel and covers the sub-display region; wherein the optical element is configured to amplify a light exit angle of the light emitted, reflected or transmitted by the display panel of the sub-display region
Data Source
AI summary
A display device and a splice display device are provided. The display device includes a display panel and an optical element disposed on the display panel and covers the sub-display region. The display panel includes a main-pixel region positioned in the main-display region and arranged with a plurality of main-pixel units; and a sub-pixel region positioned in the sub-display region and arranged with a plurality of sub-pixel units. A region without pixel units is disposed between the main-pixel region and the sub-pixel region. The optical element is configured to amplify a light exit angle of the light emitted, reflected or transmitted by the display panel of the sub-display region. A central axis of the optical element along an extending direction thereof coincides with a central axis of the sub-pixel region along an extending direction thereof.