Borderless Display Prism Module with Filter Layer
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Solution Overview
Problem
Large screen display systems using spliced LCDs suffer from discontinuity and poor image quality due to invalid display regions, which are exacerbated by prism sheets that cause brightness inconsistencies and visual discomfort when reflecting environmental light and refracting images.
Innovation Solution
A display apparatus comprising a display, a prism module with transparent substrates and prism structures, and a filter layer that absorbs environmental light, allowing for a borderless display effect with improved contrast by reducing the influence of environmental beams and aligning image frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a prism sheet is disposed above the invalid display region to redirect image beams, then the borderless display effect is achieved, but the contrast deteriorates due to environmental light reflection
Solution Approach 1:
A filter layer is introduced as an intermediary component between the prism sheet and the display region. This filter layer selectively transmits image beams from the display while blocking environmental light reflected by the prism sheet, thereby resolving the contrast deterioration caused by the borderless display structure.
Solution Approach 2:
The filter layer is positioned specifically at the invalid display region where the prism sheet is disposed, applying local optical filtering only where needed. This allows the borderless display effect to be maintained in the frame region while preserving contrast in the display region through selective light management.
2Shape
If a prism sheet is used to redirect image beams, then the borderless display effect is achieved, but image frame alignment deteriorates due to refraction
Solution Approach 1:
The filter layer is specifically positioned at the invalid display region to provide localized optical correction. By applying filtering only where the prism sheet causes refraction issues, the image frame alignment is corrected at the boundaries while maintaining the borderless display effect across the entire screen.
3Shape
If a prism sheet is disposed above the invalid display region, then the borderless display effect is achieved, but the brightness uniformity deteriorates
Solution Approach 1:
The filter layer acts as an intermediary that selectively blocks reflected environmental light from reaching the user's eyes while allowing display-generated image beams to pass through. This restores brightness uniformity by eliminating the unwanted reflected light that causes brightness inconsistency in the borderless display region.
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 achieves a borderless display with good contrast and reduced visual discomfort by absorbing environmental light and aligning image frames, mitigating the issues of brightness inconsistencies and misalignment caused by prism sheets in large screen display systems.
Implementation Method 1
the prism sheet changes an optical path of the image beam for transmitting to the eyes of the user
Implementation Method 2
the filter layer is disposed between the prism module and the display... Through the configuration of the filter layer, the display apparatus may decrease the influence of the environmental beam on the prism module
Data Source
AI summary
A display apparatus including a display, a prism module and a filter layer is provided. The prism module is disposed on the display. The prism module includes a transparent substrate and a plurality of prism structures. The prism structures are located on the transparent substrate, and a plurality of tips of the prism structures is located away from the display. The filter layer is disposed between the prism module and the display, or the prism module is disposed between the filter layer and the display.