Under-Display Pixel Electrode Layout for High-Transmittance Component Areas
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in maintaining high resolution and ensuring adequate light/sound transmittance in areas with components, as components like auxiliary subpixels can reduce light/sound transmittance in the component area.
Innovation Solution
The display device is designed with a component area that includes a transmission area for increased light/sound transmittance, and the use of an auxiliary subpixel opposite electrode is minimized to maintain optimal transmittance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If auxiliary subpixels are arranged in component areas to maintain display functionality, then display coverage is improved, but light transmittance and sound transmittance are reduced
Solution Approach 1:
The patent applies local quality by making the opposite electrode transparent specifically in the component area where auxiliary subpixels are arranged, while maintaining normal opacity in other display areas. This localized property change allows light and sound to pass through the component area without being blocked by the auxiliary subpixels, resolving the contradiction between display coverage and transmittance.
Solution Approach 2:
The patent changes the optical parameter (transparency) of the opposite electrode in the component area to resolve the contradiction. By making the opposite electrode transparent in this specific region, the patent enables both auxiliary subpixels to function for display coverage while allowing sufficient light and sound transmission through the component area.
2Illumination intensity
If transmission area is maximized in component areas to improve light transmittance, then light transmittance is improved, but manufacturing precision requirements increase due to precise patterning of multiple layers
Solution Approach 1:
The patent extracts the transparency requirement from the entire display structure and applies it specifically to the opposite electrode in the component area. By making only the opposite electrode transparent in this region rather than requiring complex patterning of multiple layers, the patent reduces manufacturing precision requirements while still achieving maximum light transmittance in the transmission area.
3Adaptability or versatility
If auxiliary subpixels are arranged in component areas, then display functionality is maintained, but sound transmittance is reduced
Solution Approach 1:
The patent applies local quality by making the opposite electrode transparent in the component area where auxiliary subpixels are arranged. This localized transparency change allows sound waves to pass through the component area without being blocked by the auxiliary subpixels, while maintaining display functionality in this region.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A display device includes: a substrate having a component area, a main display area, and a peripheral area, the peripheral area surrounding the component area and the main display area; an auxiliary pixel group disposed in the component area and including an auxiliary subpixel pixel electrode, an auxiliary subpixel intermediate layer, and an auxiliary subpixel opposite electrode; and a main pixel group disposed in the main display area and including a main subpixel pixel electrode, a main subpixel intermediate layer, and a main subpixel opposite electrode, wherein the auxiliary subpixel opposite electrode extends in the component area to have a stripe shape and is connected to the main subpixel opposite electrode in the main display area.