OLED Array Substrate with Interlaced Scan Lines for Notch-Free Displays
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Solution Overview
Problem
The existing notch design in display screens for mobile terminals compromises full-screen display consistency due to reserved space for components like cameras and sensors, leading to increased complexity in driving modes and visibility issues between different display regions.
Innovation Solution
An OLED array substrate with distinct display regions of varying pixel densities, where the second display region has lower pixel density than the first, sharing scan and data lines to implement interlaced rows and columns, and utilizing Sub Pixel Rendering to reduce crosstalk and simplify image processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a notch design is adopted to reserve space for mounting components, then components such as camera, sensor, and earpiece can be mounted, but the overall consistency of the display screen is affected
Solution Approach 1:
The patent extracts the components (camera, sensor, earpiece) from the display screen area by providing a housing that extends beyond the display screen boundaries. This allows components to be mounted on the housing rather than within the display screen, eliminating the need for a notch design while maintaining display consistency.
2Area of stationary object
If different display regions have different pixel densities, then component mounting space is provided, but driving complexity increases due to multiple driving modes
Solution Approach 1:
The patent merges the driving of different display regions with different pixel densities into a single unified driving mode. The controller is configured to control both the first display region (with first pixel density) and the second display region (with second pixel density) using the same driving mode, thereby reducing driving complexity while maintaining the ability to provide component mounting space through the extended housing design.
3Area of stationary object
If different display regions have different pixel densities, then component mounting space is provided, but dividing lines and diffraction issues become visible
Solution Approach 1:
The patent applies local quality by configuring the controller to use the first pixel density for the first display region and the second pixel density for the second display region, with the second pixel density being lower than the first. This localized adjustment of pixel density in different regions, combined with the unified driving mode, helps to reduce the visibility of dividing lines and diffraction issues while providing space for component mounting through the extended housing.
Data Source
AI summary
The present disclosure provides an OLED array substrate, a display panel and a display device. The OLED array substrate includes a first display region and a second display region; the first display region is adjacent to the second display region, and includes first OLED pixels arranged in an array; the second display region includes second OLED pixels arranged in an array; a pixel density of the second OLED pixels is less than a pixel density of the first OLED pixels; second pixel driving units of second OLED pixels and first pixel driving units of first OLED pixels in a same row are connected to a same first-type scan line, there is at least one second-type scan line between two adjacent first-type scan lines; one second-type scan line is only connected to first pixel driving units of first OLED pixels in a same row.