Ray-Scattering Prism for Bezel Elimination in LCD Modules
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Solution Overview
Problem
Current liquid crystal display (LCD) panels have a bezel that cannot be eliminated, which is a limitation in achieving thinner and more modern display designs.
Innovation Solution
A display module with a light guide structure comprising a first optical member above the peripheral display region and a second optical member above the bezel region, where rays from the peripheral display region are reflected and emitted upward from the bezel, using a transflective layer and a reflective layer with curved surfaces, and a scattering layer to scatter and transmit rays, effectively attenuating or eliminating the bezel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a conventional LCD panel structure is used, then the display function is achieved, but the bezel cannot be eliminated resulting in a larger visible frame
Solution Approach 1:
A light guide structure comprising a first optical member, second optical member, and scattering layer is introduced as an intermediary component. This structure redirects light from the peripheral display region through multiple reflections and scattering events, causing light to emerge from the bezel region and create a virtual image that masks the physical bezel, thereby reducing its visibility without altering the bezel itself
Solution Approach 2:
The invention utilizes optical path manipulation in the vertical dimension by arranging optical members at different heights above the display panel. The first optical member reflects light upward, the scattering layer diffuses it, and the second optical member reflects it again, creating a three-dimensional optical pathway that projects the peripheral display content into the bezel region, effectively hiding the bezel through spatial redistribution of light
2Object-generated harmful factors
If light is redirected from the peripheral display region to the bezel region, then the bezel is attenuated or eliminated optically, but the light path becomes more complex requiring multiple optical members
Solution Approach 1:
The light guide structure is segmented into distinct functional components: a first optical member for initial light reflection, a scattering layer for light diffusion, and a second optical member for final reflection. Each segment performs a specific function in the light redirection sequence, allowing for optimized design and manufacturing of individual components while achieving the overall goal of bezel elimination through their combined action
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 allows for the optical effect of attenuating or eliminating the bezel, enhancing the brightness and uniformity of the peripheral display region while maintaining normal display functionality.
Implementation Method 1
a first optical member at least partially arranged above the peripheral display region of the display panel, the part of rays emitted from the peripheral display region of the display panel being reflected by the first optical member to travel upward the bezel region
Implementation Method 2
the light guide structure further includes a scattering layer arranged between the first optical member and the second optical member; the scattering layer is configured to scatter the rays reflected by the first optical member and transmit the scattered rays to the second optical member
Implementation Method 3
a second optical member at least partially arranged above the bezel region and configured to receive the rays reflected by the first optical member and reflect the received rays again to cause the received rays to emit upward from the bezel region
Data Source
AI summary
The present disclosure provides a display module, including a display panel and a bezel. The display panel includes a central display region, a peripheral display region, a bezel region, a first optical member at least partially arranged above the peripheral display region, and a second optical member at least partially arranged above the bezel region. A part of rays emitted from the peripheral display region is reflected by the first optical member toward the second optical member, and emits upward from the bezel region after being reflected again by the second optical member.