Tiled Display Boundary Pixel Structure for Reduced Seam Visibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge of manufacturing large-sized display devices is exacerbated by increased defect rates and reduced productivity due to the higher number of pixels, which can lead to misalignment of multiple display devices when connected to form a tiled display, resulting in visible boundaries.
Innovation Solution
A tiled display device design where each display device includes a main area with first pixels and a boundary area with second pixels, comprising sub-pixels that are arranged and aligned to minimize the visibility of boundaries by ensuring equal spacing and non-emission of certain partial pixels at strategic locations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple display devices are connected to form a tiled display, then the display size is increased, but the visibility of boundaries between devices increases due to misalignment
Solution Approach 1:
The patent applies local quality by creating different pixel structures in different regions of the display device. Specifically, pixels in the boundary area are divided into multiple partial pixels with different emission characteristics compared to pixels in the main area. This local differentiation allows the boundary pixels to compensate for misalignment and reduce visible boundaries while maintaining uniform overall display appearance.
Solution Approach 2:
The patent segments the pixel structure by dividing pixels into partial pixels, particularly in the boundary area. Each pixel is segmented into multiple partial pixels that can be independently controlled, allowing for more precise control of light emission in the boundary regions to mask misalignment effects.
2Measurement precision
If the number of pixels is increased to achieve large display size, then the display resolution is improved, but the defect rate increases and productivity decreases
Solution Approach 1:
The patent segments the display into multiple independent display devices, each with a manageable number of pixels. This segmentation allows for improved manufacturing productivity and reduced defect rates in individual devices while achieving high overall resolution through the tiled arrangement of multiple devices.
3Object-affected harmful factors
If pixels in the boundary area are made larger to reduce misalignment visibility, then the boundary visibility is reduced, but the overall display uniformity is compromised
Solution Approach 1:
The patent applies local quality by making pixels in the boundary area have different characteristics (divided into partial pixels with different emission properties) compared to main area pixels. This allows the boundary pixels to compensate for misalignment while maintaining overall display uniformity through coordinated emission control.
Solution Approach 2:
The patent uses partial action by having only the boundary pixels divided into partial pixels while main area pixels remain as single units. This partial segmentation provides sufficient misalignment compensation at boundaries without over-complicating the entire pixel structure, thereby maintaining display uniformity.
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 effectively reduces the visibility of boundaries between adjacent display devices, enhancing immersion and image quality by ensuring uniform light emission and alignment, thus improving the overall display experience.
Implementation Method 1
each of the first pixels and the second pixels includes a plurality of sub pixels, and each of the sub pixels of the second pixels includes a plurality of partial pixels
Data Source
AI summary
A tiled display device includes a plurality of display devices adjacent to each other, each of the display devices including a plurality of first pixels and a plurality of second pixels, and a boundary area in which at least one side of each of the display devices is adjacent to a side of another display device and a main area other than the boundary area, wherein the first pixels are in the main area, the second pixels are in the boundary area, each of the first pixels and the second pixels includes a plurality of sub pixels, and each of the sub pixels of the second pixels includes a plurality of partial pixels.