Tiled Display Panel Splice Area Brightness Equalization
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Solution Overview
Problem
Tiled display systems using LCD panels suffer from a dark splice area between adjacent panels due to opaque frame sealing glue and borders, which significantly affects the display effect.
Innovation Solution
Incorporating a first and second optical element on either side of the splice area, configured to direct light to a reflective element, allowing light to be reflected and emitted from the splice area, thereby increasing brightness and enabling image display within the splice area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If LCD panels are spliced together to form a tiled display, then large size display is achieved, but a dark splice area appears between adjacent panels due to opaque frame sealing glue and borders
Solution Approach 1:
The patent introduces an optical element as an intermediary component between adjacent display panels. This optical element redirects light from the display areas into the splice area, acting as a mediator that transfers light energy to the previously dark region. The optical element includes a light receiving surface facing the display area and a light emitting surface facing the splice area, creating an intermediate optical path that bridges the gap between illuminated and non-illuminated regions.
Solution Approach 2:
The patent changes the optical parameters of the splice area by introducing elements with specific refractive indices and optical properties. The optical element is made of materials with refractive indices carefully selected to enable total internal reflection and efficient light redirection. This parameter change transforms the splice area from an opaque, light-blocking region to a light-emitting region, matching the brightness characteristics of adjacent display areas.
2Strength
If opaque frame sealing glue and borders are used in LCD panels, then structural integrity is maintained, but display effect is significantly affected due to the dark splice area
Solution Approach 1:
The patent extracts the light redirection function from the traditional opaque border structure. Instead of relying on the border to define the display boundary, the invention separates the structural sealing function (performed by frame sealing glue) from the optical function (performed by the newly introduced optical element). This extraction allows the splice area to serve dual purposes: maintaining structural integrity while simultaneously achieving light emission and display functionality.
Solution Approach 2:
The optical element serves multiple functions: it acts as a light redirector, a brightness equalizer, and potentially a structural component. By making the optical element an integral part of the panel assembly, the design achieves multi-functionality where a single component addresses both optical performance and structural requirements, reducing the need for separate dedicated elements.
3Illumination intensity
If a reflective element is added on the splice area to reflect light, then brightness of splice area is improved, but device complexity increases
Solution Approach 1:
The patent merges the optical element with the display panel structure, making it an integrated component rather than a separate add-on. The optical element is positioned and configured to work in conjunction with the display area and splice area as a unified optical system. This merging reduces the number of discrete components and simplifies the overall device architecture while achieving the desired light redirection and brightness improvement.
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 solution reduces the brightness difference between display areas and splice areas, improving the overall display effect by allowing light and image transfer to the splice area, effectively minimizing the dark appearance of the splice region.
Implementation Method 1
each of the first optical element and the second optical element is configured to direct at least a portion of light emitted from the display area in which it is located to the reflective element, such that the at least a portion of light is reflected by the reflective element and then emitted out from the splice area
Implementation Method 2
the at least a portion of light is reflected by the reflective element and then emitted out from the splice area
Data Source
AI summary
A tiled display panel and a tiled display device are disclosed. The tiled display panel includes: at least first and second adjacent display areas; a splice area disposed between the first and second adjacent display areas; a first optical element and a second optical element respectively disposed on the first and second display areas and located on two sides of the splice area; and a reflective element disposed on the splice area. Each of the first optical element and the second optical element is configured to direct at least a portion of light emitted from its respective display area to the reflective element, such that the at least a portion of light is reflected by the reflective element and then emitted out from the splice area.