Narrowing Frame Area in Irregular Display Panels
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Solution Overview
Problem
Existing organic EL display devices with irregularly shaped panels struggle to minimize the frame area, particularly in corners, due to the limitations of previous designs that do not effectively utilize the frame area in cutout portions.
Innovation Solution
The display device incorporates a display panel with a frame area that includes cutout portions, where scan circuits and emission circuits are strategically arranged to connect emission control lines at the outer edge of the display area, allowing for the narrowing of the frame area by reducing the number of lines extending from the emission circuits along the curvature portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If driver circuits are arranged in the frame area of an irregularly shaped display panel, then the frame area can be utilized, but the frame area in corner regions cannot be sufficiently narrowed
Solution Approach 1:
The frame area is divided into multiple regions: a first region containing curvature portions and side portions, and a second region containing the cutout portion. Driver circuits are selectively arranged in different regions based on their functional requirements, allowing the curvature portion to be narrowed while maintaining proper circuit placement.
Solution Approach 2:
The invention utilizes the cutout portion (notched portion) as an additional dimension for arranging driver circuits. By placing emission control circuits in the cutout portion rather than only in the frame area, the design effectively uses three-dimensional space utilization to reduce the frame area width in corner regions.
2Reliability
If emission control lines are extended along curvature portions to connect emission control circuits, then the frame area in corner regions increases
Solution Approach 1:
The emission control circuits are extracted from the frame area and relocated to the cutout portion. This separation allows the emission control lines to be routed directly from the cutout portion to the display area without extending along the curvature portions, thereby reducing the frame area in corner regions while maintaining reliable connections.
Solution Approach 2:
The invention introduces a lateral section in the cutout portion as an intermediary region. Emission control lines are routed through this lateral section to connect emission control circuits in the cutout portion with the display area, providing a direct transmission path that bypasses the curvature portions and reduces frame area requirements.
Data Source
AI summary
Provided is a display device including an irregularly shaped display panel that allows a frame area to be narrowed by utilizing the frame area in a cutout portion. Some emission circuits that respectively correspond to scan circuits arranged in a first curvature portion are arranged in a part of a second side portion that is near the first curvature portion, and remaining emission circuits are arranged in a first notch side portion. Accordingly, the emission circuits arranged in the first notch side portion have lines connected to second emission control lines in a second display area from the first notch side portion side, resulting in a fewer number of lines extending into the first curvature portion.