Tiled Display Bezel Support for Shadow Elimination
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Solution Overview
Problem
Conventional liquid crystal display (LCD) panels in tiled displays experience shadow issues due to the width of the frame being greater than the bezel, affecting user viewing experience.
Innovation Solution
A tiled display design where the bezel of adjacent LCD panels is supported by a housing with supports that do not block incoming light, allowing for a bezel width greater than or equal to the support width, and incorporating a backlight unit partially within the housing to reduce volume and enhance light utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a frame is used to support the tiling of adjacent LCD panels, then the structural stability is improved, but the frame width exceeds the bezel width causing shadow at the tiling
Solution Approach 1:
The support function is extracted from the traditional frame structure and transferred to the bezel itself. The bezel is extended to directly support the housing, eliminating the need for a separate frame that would cause shadow. This extraction of the support function to the bezel resolves the contradiction by providing structural stability without the harmful shadow effect.
Solution Approach 2:
Instead of using a frame to support the panels (traditional approach), the invention inverts the approach by having the bezel support the housing. This reversal of the support relationship allows the bezel to serve dual purposes: maintaining the display boundary and providing structural support, thereby eliminating shadow while ensuring stability.
2Device complexity
If the backlight unit is placed outside the housing, then the assembly is simpler, but the volume of the tiled display increases
Solution Approach 1:
The backlight unit is nested within the housing structure, similar to a doll within a doll. The housing serves as the outer container that also accommodates the backlight unit in its interior space. This nesting arrangement reduces the overall display volume by utilizing existing structural space rather than adding external components.
Solution Approach 2:
The housing is designed to serve multiple functions: it provides the structural framework for the display and simultaneously houses the backlight unit. This multi-functionality eliminates the need for separate external mounting of the backlight, reducing overall volume while maintaining assembly simplicity through integrated design.
3Device complexity
If the support blocks the light from the backlight unit, then the support structure is simpler, but the light utilization decreases causing reduced display brightness
Solution Approach 1:
The support structure is designed with localized light-transmitting properties. The bezel and support elements are positioned and configured to allow light to pass through specific regions while maintaining structural support in other areas. This local differentiation of support and light transmission functions resolves the contradiction by ensuring both structural simplicity and optimal light utilization.
Data Source
AI summary
The embodiments of the application provide a tiled display, which includes a housing, a backlight unit arranged on a side of the housing, at least two supports provided in the housing and located on a light output side of the backlight unit, and at least two tiling liquid crystal display panels. The liquid crystal display panels are fixed on the housing and located on a side of the support away from the backlight unit. A bezel at the tiling of two adjacent liquid crystal display panels is arranged on the support, and a width of the bezel is greater than or equal to a width of the support.