Modular Display Pixel Layout for Interface Color Consistency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Modular display devices face challenges in implementing smooth color and preventing optical loss and unintended optical phenomena at interfaces between modules.
Innovation Solution
The display device is designed by combining multiple unit display modules with specific configurations, including defined unit pixel regions, electrode pads, and light-emitting elements, where the distance between the interface and adjacent subpixels is optimized to minimize optical loss and maintain color consistency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If multiple unit display modules are combined to form a modular display device, then manufacturing ease and flexibility are improved, but optical loss and color changes at interfaces occur
Solution Approach 1:
The patent introduces an optical adhesive layer as an intermediary substance between the optical films of adjacent display modules. This adhesive layer has optimized optical properties (refractive index and thickness) that serve as a mediator to reduce optical loss at the interface, allowing the modular construction benefits to be maintained while mitigating the optical loss problem through this intermediate material layer.
2Ease of manufacture
If multiple unit display modules are combined to form a modular display device, then manufacturing ease and flexibility are improved, but color changes depending on viewing angle occur
Solution Approach 1:
The patent applies different optical compensation strategies to different regions of the display module. Specifically, optical films with different characteristics are applied to different regions (e.g., red, green, blue subpixels) to compensate for the specific color changes that occur at each wavelength. This localized optimization ensures color consistency across the entire modular display while maintaining the manufacturing advantages of modular construction.
3Quantity of substance
If distance between interface and adjacent subpixel is reduced, then pixel density is improved, but optical loss and unintended optical phenomena increase
Solution Approach 1:
The patent optimizes the parameters of the optical adhesive layer (refractive index, thickness) and the optical films (material composition, thickness) to achieve the best balance between pixel density and optical loss reduction. By carefully controlling these parameters, the system can maintain high pixel density while the optimized optical layers minimize unwanted optical phenomena at the interfaces between closely-spaced modules.
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 configuration ensures smooth color implementation and prevents optical loss and color changes when viewed from different angles, maintaining normal white light implementation even at oblique angles.
Implementation Method 1
each of the unit display modules includes an electrode pad arranged in a unit pixel to define a plurality of unit subpixels, and a light-emitting element electrically connected to the electrode pad
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A display device using a light emitting device applicable to display device-related technical fields is provided. In a display device implemented by combining a plurality of unit display modules in which a plurality of unit pixel regions is defined, the plurality of unit display modules is combined with each other with an interface therebetween. Each of the unit display modules includes an electrode pad arranged in a unit pixel to define a plurality of unit subpixels, and a light-emitting element electrically connected to the electrode pad. A shortest distance between neighboring pixels including the interface may be greater than a shortest distance between neighboring pixels in the display module.