Tiling Display Color Deviation Reduction via Local Quality
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Solution Overview
Problem
In tiling displays, unit panels with anti-reflective film-attached transparent substrates or anti-glare films exhibit noticeable color deviations when viewed from different angles, leading to reduced display quality.
Innovation Solution
By setting the color tone (a* and b*) of diffusely reflected light at specific angles for adjacent unit panels to satisfy predetermined conditions, the tiling display can minimize color deviations, ensuring a uniform appearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If anti-reflective film-attached transparent substrates or anti-glare films are provided on unit panels to prevent glare from external light, then glare prevention is improved, but color deviation between unit panels becomes noticeable when viewed from different angles
Solution Approach 1:
The patent applies local quality by differentiating the treatment of adjacent unit panels. Specifically, it alternates between providing anti-reflective film-attached transparent substrates and anti-glare films on different unit panels, rather than uniformly applying the same treatment to all panels. This local differentiation in optical treatment reduces the noticeable color deviation between adjacent panels while maintaining glare prevention functionality.
2Area of stationary object
If a single display panel is used to achieve large-screen display, then screen size is increased, but mechanical strength problems and display unevenness due to increased electrode resistance occur
Solution Approach 1:
The patent applies segmentation by dividing the large-screen display into multiple smaller unit panels that are arranged in a tiled configuration. Each unit panel maintains its own display element and can be independently manufactured and assembled, thereby avoiding the mechanical strength and electrode resistance issues that would arise from using a single large panel while achieving the desired large-screen display area.
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 approach results in a tiling display with reduced color deviations, enhancing both the quality and aesthetic appearance by maintaining a consistent color tone across different viewing angles.
Implementation Method 1
The diffusion layer diffuses the incident light to prevent the glare from the external light
Implementation Method 2
the anti-reflective film as described above on the diffusion layer. Accordingly, reflection of the incident light can be prevented and whiteness is reduced
Data Source
AI summary
A tiling display is obtained by arranging a plurality of unit panels, each including an anti-reflective film-attached transparent substrate on a display surface side. The anti-reflective film-attached transparent substrate includes a transparent substrate, a diffusion layer, and an anti-reflective film in this order toward the display surface side, and two of the unit panels adjacent to each other satisfy the condition 1.