AMOLED Transition Region Reflectance Uniformity via Metal Portions
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Solution Overview
Problem
The existing AMOLED display panels exhibit an obvious boundary between the transition display region and the normal display region when in a screen-off state and exposed to strong light, due to differences in metal coverage area per unit area leading to varying reflectance.
Innovation Solution
Incorporating a metal reflective portion in the transition display region, positioned between the second pixel driving circuits, to equalize the reflectance with the main display region, thereby eliminating the boundary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the transition display region uses transparent wires and has different metal coverage area per unit area compared to the normal display region, then the light-transmitting display region can achieve dual functions of photographing and display with pixel driving circuits disposed in it, but an obvious boundary occurs between the transition display region and the normal display region when the AMOLED display panel is in a screen-off state and under strong light irradiation
Solution Approach 1:
The patent applies local quality by introducing a metal reflective portion specifically in the transition display region to adjust its optical properties. This local modification changes the reflectance characteristics of the transition region to match the normal display region, thereby eliminating the visible boundary while preserving the dual functionality of the light-transmitting region.
Solution Approach 2:
The patent changes the optical parameter (reflectance) of the transition display region by adding a metal reflective portion. This parameter change equalizes the reflectance between the transition display region and the normal display region, solving the boundary visibility issue under strong light conditions while maintaining the adaptability for both photographing and display functions.
2Reliability
If the metal coverage area per unit area is different between the transition display region and the normal display region, then the pixel driving circuits can be disposed in the light-transmitting display region to ensure reflectance, but the reflectance uniformity deteriorates causing an obvious boundary under strong light
Solution Approach 1:
The patent introduces a metal reflective portion specifically in the transition display region to locally adjust the reflectance characteristics. This local modification ensures that the reflectance of the light-transmitting display region is maintained while achieving uniform reflectance across both the transition and normal display regions, thereby eliminating the visible boundary.
Solution Approach 2:
The patent changes the reflectance parameter of the transition display region by adding a metal reflective portion. This parameter adjustment equalizes the reflectance between the transition display region and the normal display region, ensuring both reliability of the light-transmitting region's reflectance and stability of the overall reflectance 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 display device achieves uniform reflectance between the transition and main display regions, preventing the occurrence of an obvious boundary when in a screen-off state under strong light conditions.
Implementation Method 1
a metal reflective portion disposed in the transition display region and at least positioned in gaps between the second pixel driving circuits... make a reflectance of the transition display region close to a reflectance of the main display region
Data Source
AI summary
A display device and an electronic equipment provided by the present application make a reflectance of a transition display region close to a reflectance of a main display region by disposing a metal reflective portion in gaps between a plurality of second pixel driving circuits in the transition display region, preventing an obvious boundary from occurring between the main display region and the transition display region when they are in a screen-off state and are under a condition of being irradiated by strong light.