Mixed Pixel Circuit Boundary Layout for Under-Display Imaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The challenge of implementing a full-screen display in mobile terminals is hindered by the presence of a visible boundary in the imaging region due to differences in luminance caused by low-resolution pixels and camera integration, which affects the user's viewing experience.
Innovation Solution
A display device design incorporating a first and second display region with varying pixel densities and transmittances, along with a boundary region where pixel circuits are mixed to gradually transition luminance, ensuring a seamless integration of imaging and display areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If low-resolution pixels are disposed in the imaging region to reduce camera space, then the camera can be integrated into the screen, but a visible boundary with abrupt luminance change is created
Solution Approach 1:
The patent applies local quality by creating a boundary region with distinct pixel circuit composition between the first display region (high-resolution) and second display region (low-resolution). The boundary region contains both first pixel circuits and second pixel circuits, allowing the luminance to transition gradually rather than abruptly, thus eliminating the visible boundary while maintaining the imaging region's full-screen integration capability
Solution Approach 2:
The boundary region acts as an intermediary between the high-resolution first display region and the low-resolution second display region. By introducing this intermediate zone with mixed pixel circuits, the patent mediates the luminance difference between the two regions, creating a smooth transition that prevents the visible boundary effect while enabling full-screen display integration
2Illumination intensity
If the density of second pixel circuits is increased in the boundary region, then the luminance transition becomes smoother, but the manufacturing complexity increases
Solution Approach 1:
The patent segments the display region into three distinct zones: the first display region with high-resolution pixels, the boundary region with mixed pixel densities, and the second display region with low-resolution pixels. This segmentation allows for controlled luminance transition while simplifying the overall design by defining clear boundaries and density ratios for each region, making the manufacturing process more manageable despite the varying densities
Data Source
AI summary
A display device can include a first display region including a plurality of first pixels, a second display region including a plurality of second pixels, and a boundary region disposed between the first display region and the second display region. The boundary region includes the plurality of first pixels and the plurality of second pixels. Also, the plurality of first pixels respectively include a plurality of first pixel circuits, the plurality of second pixels respectively include a plurality of second pixel circuits, and a transmittance of each of the plurality of second pixel circuits is higher than a transmittance of each of the plurality of first pixel circuits.