Display Panel Circuit Layout for Narrow-Bezel Transparent Regions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in improving the screen-to-body ratio due to the presence of pixel drive circuits in the peripheral regions, leading to a large frame and poor display effects in both conventional and light-transmissive display regions.
Innovation Solution
The display panel is designed with a light-transmissive display region surrounded by a conventional display region, where pixel drive circuits are rearranged in rows to reduce their size, and second pixel drive circuits are placed in the conventional region to drive light-emitting devices in the light-transmissive region, using conductive wiring made of indium tin oxide to minimize wiring length and resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If pixel drive circuits are disposed in the peripheral region of the substrate, then the display panel can be manufactured with conventional processes, but the frame size becomes large and the screen-to-body ratio is reduced
Solution Approach 1:
The patent moves pixel drive circuits from the traditional peripheral region (2D plane arrangement) to the interior region of the substrate, arranging them in rows between light-emitting device groups. This dimensional repositioning allows the drive circuits to be integrated within the display area rather than occupying the frame region, thereby reducing frame size while maintaining manufacturability through conventional processes.
Solution Approach 2:
The substrate is divided into a light-transmissive display region and a conventional display region, with pixel drive circuits segmented and arranged in specific rows within the conventional display region. This segmentation allows different regions to serve different functions while optimizing the overall layout to reduce frame size.
2Area of stationary object
If pixel drive circuits are arranged in a compact layout to reduce frame size, then the screen-to-body ratio improves, but the display refresh rate and uniformity deteriorate
Solution Approach 1:
The patent implements local quality by arranging pixel drive circuits in specific rows within the conventional display region, with each row corresponding to specific light-emitting device groups. This localized arrangement optimizes the electrical connection paths and wiring length for each region, ensuring high display refresh rates and uniformity while maintaining a compact overall layout that reduces frame size.
3Loss of time
If pixel drive circuits are placed close to light-emitting devices to reduce wiring length, then the response time improves, but the layout complexity increases
Solution Approach 1:
The patent repositions pixel drive circuits from the peripheral region to the interior region, arranging them in rows between light-emitting device groups. This dimensional change creates a more compact layout that reduces wiring length and improves response time, while the systematic row-based arrangement actually simplifies the overall layout complexity compared to traditional peripheral arrangements.
Data Source
AI summary
Provided is a display panel. The display panel includes: a substrate including a light-transmissive display region and a conventional display region, a plurality of first pixel drive circuits, a plurality of first light-emitting devices, and a plurality of second pixel drive circuits that are disposed in the conventional display region, and a plurality of second light-emitting devices disposed in the light-transmissive display region. The plurality of first pixel drive circuits includes a plurality of groups of the first pixel drive circuits. The plurality of first light-emitting devices are electrically connected to the plurality of first pixel drive circuit. The plurality of second pixel drive circuits includes a plurality of groups of the second pixel drive circuits. The plurality of second light-emitting devices are electrically connected to the plurality of groups of the second pixel drive circuits by a conductive wiring.