Pixel-Group Display Device for Switchable Viewing Angles and Brightness
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices struggle to provide images that meet user needs in varying usage situations, such as differing light conditions and viewing angles, without compromising performance.
Innovation Solution
A display device with a dual operation mode, featuring distinct stacked structures and light blocking patterns in different areas, allowing for adjustable viewing angles and brightness, and incorporating an organic layer and insulating layers to enhance image quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a uniform stacked structure is used across the entire display panel, then the manufacturing process is simple, but the device cannot adapt to different viewing angle and brightness requirements in varying usage situations
Solution Approach 1:
The display panel is divided into a first area and a second area with different stacked structures. The first area includes pixels of a first group with a first stacked structure, while the second area includes pixels of a second group with a second stacked structure. This segmentation allows different regions to be optimized for different viewing conditions without complicating the entire device structure.
Solution Approach 2:
Different stacked structures are applied to different areas of the display panel based on local requirements. The first stacked structure in the first area provides narrow viewing angles for personal information viewing, while the second stacked structure in the second area provides wide viewing angles for general display purposes. This local quality approach enables the device to meet specific user needs in different usage situations.
2Adaptability or versatility
If the viewing angle is narrowed for personal information viewing, then privacy is improved, but the brightness and visibility for general viewing deteriorate
Solution Approach 1:
The display device can dynamically switch between different operation modes by activating different pixel groups. In the first operation mode, pixels of the first group are activated to provide narrow viewing angles for privacy-protected personal information viewing. In the second operation mode, pixels of the second group are activated to provide wide viewing angles and high brightness for general viewing. This dynamic switching allows the device to adapt brightness and viewing angle characteristics to different usage scenarios.
3Adaptability or versatility
If a single pixel structure is used throughout the display, then the device complexity is reduced, but the ability to provide different image qualities for different usage scenarios is lost
Solution Approach 1:
The pixel array is segmented into a first group of pixels and a second group of pixels, each with distinct stacked structures. The first group of pixels in the first area has a first stacked structure optimized for narrow viewing angles, while the second group of pixels in the second area has a second stacked structure optimized for wide viewing angles. This segmentation enables the display to provide different image qualities for different usage scenarios without requiring a completely complex pixel structure throughout.
Solution Approach 2:
The display panel achieves multi-functionality by incorporating both first and second stacked structures within the same panel. The same display panel can function in two different modes: one for privacy-protected personal information viewing with narrow viewing angles, and another for general display with wide viewing angles. This universality allows a single device to serve multiple purposes without requiring multiple separate devices.
Data Source
AI summary
A display device includes a display panel including a first area including a peripheral region and an emission region of a pixel of a first group; and a second area including a peripheral region and an emission region of a pixel of a second group; at least one insulating layer disposed on the display panel and overlapping the second area; an organic layer disposed on the at least one insulating layer and overlapping the second area; and a light blocking pattern disposed on the organic layer and overlapping the second area. A first opening corresponding to the emission region of the pixel of the second group is formed in the organic layer, and a first light blocking opening corresponding to the first opening is formed in the light blocking pattern.