Video Wall Display Bezel Reduction via White Pixel Integration
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Solution Overview
Problem
Conventional video wall-type display devices have a noticeable bezel area where display modules overlap, appearing as a black band and making it difficult to achieve a seamless large-sized display.
Innovation Solution
The design incorporates display modules with specific pixel unit arrangements, including red, green, blue, and white pixels, where white pixels are strategically placed to adjoin the non-display areas, minimizing the visible bezel width by making the non-display areas appear as part of the image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If multiple display modules are placed to overlap to form a large-sized display, then the display size is increased, but the bezel area appears as a noticeable black band between modules
Solution Approach 1:
The patent applies color changes by introducing white pixels in the second sub-area that adjoin the non-display area. These white pixels change the visual appearance of the bezel area from black to white, effectively masking the visible black band between display modules and reducing the noticeable bezel width.
Solution Approach 2:
The patent converts the harmful effect of the visible black bezel into a benefit by placing white pixels adjacent to the non-display area. The white pixels create a visual transition that makes the non-display area appear as part of the image, thereby converting the visible black band (harm) into an integrated visual element (benefit).
2Object-generated harmful factors
If the non-display area is minimized, then the bezel visibility is reduced, but the manufacturing precision requirements increase
Solution Approach 1:
The patent segments the display area into multiple sub-areas with different pixel configurations. The first sub-area contains only color pixels for normal display, while the second sub-area contains color pixels plus white pixels for bezel reduction. This segmentation allows the white pixels to be strategically placed only where needed to reduce bezel visibility, without requiring precision across the entire display.
Solution Approach 2:
The patent applies local quality by introducing white pixels only in the second sub-area that adjoins the non-display area, rather than uniformly across the entire display. This localized approach reduces bezel visibility precisely where it is needed (at the module boundaries) without affecting other areas, thereby reducing overall manufacturing precision requirements.
Data Source
AI summary
A video wall-type display device may include: a plurality of display modules, each including: a display area including: a first sub-area; and at least one second sub-area disposed to adjoin and to surround the first sub-area; and a non-display area disposed to surround the display area, wherein the first sub-area may include at least one first pixel unit. The at least one first pixel unit includes: a first pixel configured to display a first color; a second pixel configured to display a second color; and a third pixel configured to display a third colors, the first, second, and third colors being different from each another. The second sub-area may include at least one second pixel unit, the at least one second pixel unit including: the first pixel, the second pixel, and the third pixel; and at least one fourth pixel configured to display a white color.