Transparent Display Color Pattern for Yellow Tint Compensation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Transparent display apparatuses suffer from yellowish coloration of backgrounds and objects due to low transmittance of organic light-emitting layers and opposing electrodes, limiting clarity and increasing power consumption.
Innovation Solution
Incorporation of a color pattern portion partially overlapping the transmissive area to minimize yellowish coloration, combined with a uniform inner line design to prevent diffraction phenomena, thereby enhancing clarity and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the organic light-emitting layer and opposing electrode are placed in the transmissive area to reduce manufacturing steps, then the manufacturing process is simplified, but the transmittance for short wavelengths decreases causing yellowish coloration
Solution Approach 1:
The patent applies color changes by introducing a color compensation layer with a blue hue in the transmissive area. This layer compensates for the yellowish coloration caused by the organic light-emitting layer and opposing electrode, restoring the natural color perception of background objects while maintaining the simplified manufacturing structure.
Solution Approach 2:
The color compensation layer acts as an intermediary element between the viewer and the background objects. It mediates the optical interaction by filtering specific wavelengths to counteract the yellowish tint, allowing clear viewing of background objects without requiring complex manufacturing processes.
2Device complexity
If the organic light-emitting layer and opposing electrode are placed in the transmissive area, then device complexity is reduced, but clarity of background objects deteriorates due to yellowish coloration
Solution Approach 1:
The color compensation layer with blue hue transforms the optical properties of the transmissive area by counteracting the yellowish coloration. This enables accurate color representation of background objects while maintaining the simple device structure with the organic light-emitting layer and opposing electrode in the transmissive area.
3Ease of manufacture
If the organic light-emitting layer and opposing electrode are placed in the transmissive area, then manufacturing is easier, but power consumption increases due to reduced transmittance
Solution Approach 1:
The color compensation layer optimizes the optical transmission characteristics by selectively filtering wavelengths. This reduces the energy loss from the yellowish coloration effect, allowing more efficient light transmission and reducing the power required to achieve the same viewing quality, while maintaining the simplified manufacturing structure.
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 yellowish coloration and improves image clarity while maintaining or reducing power consumption by using a color pattern portion and inner line configuration in the transmissive area.
Implementation Method 1
a color pattern portion partially overlapping the transmissive area
Data Source
AI summary
A transparent display apparatus according to some examples of the present disclosure includes a substrate provided with a plurality of pixels each having a plurality of sub-pixels, a transmissive area provided on the substrate and arranged adjacent to at least some subpixels among the plurality of subpixels, and a color pattern portion partially overlapping the transmissive area.