Single-Layer Display Device With Segmented Emissive and Reflective Regions
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Solution Overview
Problem
Conventional LCDs face interference and manufacturing complexity due to the multilayer stack structure of reflective and emissive regions, leading to poor display quality and increased costs, especially in devices used in varying luminance environments.
Innovation Solution
A display device with a single-layer structure where the emissive and reflective regions are separated by a wall structure, fabricated using stamping, to prevent interference and simplify the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a multilayer stack structure is used to dispose reflective and emissive regions, then both reflective and emissive display functions can be achieved, but the elements will interfere with each other in operation and the manufacturing process becomes complex
Solution Approach 1:
The patent divides each pixel into separate reflective and emissive regions using wall structures, physically segmenting the two display modes within the same pixel. This segmentation prevents interference between reflective and emissive elements while maintaining both display functions in a single substrate layer.
Solution Approach 2:
The patent transitions from a vertical multilayer stack structure to a lateral planar arrangement where reflective and emissive regions are disposed side-by-side in the same layer. This dimensional change eliminates the interference problems associated with stacked layers while achieving the same functional versatility.
2Adaptability or versatility
If a multilayer stack structure is used to dispose reflective and emissive regions, then both reflective and emissive display functions can be achieved, but the manufacturing process becomes complex and low-temperature elements may be damaged during high-temperature processes
Solution Approach 1:
By segmenting the pixel into separate reflective and emissive regions with wall structures, the patent enables independent manufacturing processes for each region type. This eliminates the need for complex sequential processing that would damage temperature-sensitive elements in a multilayer stack.
Solution Approach 2:
The lateral arrangement of reflective and emissive regions in the same layer allows for simplified planar manufacturing processes, avoiding the complex vertical stacking and multiple high-temperature processing steps required for multilayer structures.
3Adaptability or versatility
If reflective and emissive regions are disposed in a multilayer stack structure, then both display modes can be achieved, but the individual elements will interfere with each other during operation resulting in poor display quality
Solution Approach 1:
The patent uses wall structures to physically segment and isolate reflective and emissive regions within each pixel. This segmentation prevents optical and electrical interference between the two display modes, ensuring high display quality for both reflective and emissive operations.
Solution Approach 2:
By arranging reflective and emissive regions side-by-side in the lateral dimension rather than stacking them vertically, the patent eliminates the interference that occurs in multilayer structures while maintaining both display modes in the same pixel.
Data Source
AI summary
A display device is provided, which includes a first structural substrate with multiple pixel regions. At least one of the pixel regions has an emissive region and a reflective region. A wall structure is located on the first structural substrate, and surrounds a periphery of the emissive region and the reflective region for separating the emissive region and the reflective region. An emissive structure is disposed in the emissive region of the first structural substrate. A reflective displaying structure is disposed in the reflective region of the first structural substrate. In addition, a second structural substrate covers the wall structure.