Auxiliary OLED Element for Standby Aesthetic Matching
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Solution Overview
Problem
Portable display devices with organic light emitting display panels typically display black in standby mode, lacking aesthetic appeal as they do not match the color of the light blocking unit, which is often designed to be visually appealing.
Innovation Solution
Incorporating an auxiliary organic light emitting element between or around pixels, which can emit light of various colors, allowing the display panel to match or complement the light blocking unit's color during standby, enhancing aesthetic beauty.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If an auxiliary organic light emitting element is added to enable color display in standby state, then aesthetic appearance is improved, but device complexity increases
Solution Approach 1:
The auxiliary organic light emitting element is integrated within the existing pixel structure by utilizing the same substrate and positioning the auxiliary element between or around the main pixels. The auxiliary lower electrode is disposed on the pixel defining layer, and the auxiliary upper electrode is integrally formed with the upper electrode, creating a nested configuration where the auxiliary element is embedded within the overall pixel architecture rather than adding separate external components.
Solution Approach 2:
The auxiliary organic light emitting element serves multiple functions: it provides color display during standby state to match the light blocking unit, maintains integration with the existing pixel structure through shared electrodes and substrate, and enables aesthetic customization without requiring separate display systems. The same organic emission layer structure is used for both main pixels and auxiliary elements, demonstrating universal design principles.
2Ease of manufacture
If auxiliary organic light emitting elements are integrated within pixel structures, then manufacturing complexity is reduced, but pixel area is reduced
Solution Approach 1:
The auxiliary organic light emitting element is positioned in the non-light-emitting region between or around the main pixels, utilizing space that would otherwise be unused. The auxiliary lower electrode is disposed on the pixel defining layer in areas where light emission is not required, and the auxiliary organic emission layer is positioned to emit light in the gaps between pixels, thereby utilizing local non-critical areas without interfering with the main pixel light emission zones.
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 display panel can display chromatic colors that match or complement the light blocking unit, providing aesthetic beauty and user preference by forming an auxiliary organic light emitting element that emits light when the main panel is not in use.
Implementation Method 1
an auxiliary organic light emitting element disposed at a distance from the pixel... an auxiliary organic emission layer disposed on the auxiliary lower electrode... the auxiliary organic light emitting element may be disposed between the respective pixels, or may surround the pixels
Data Source
AI summary
An organic light emitting display panel that includes a substrate, a plurality of pixels disposed on the substrate and forming a matrix, and an auxiliary organic light emitting element disposed at a distance from the pixel.