Display Notch Scan Line Area Matching for Brightness Uniformity
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Solution Overview
Problem
Display apparatuses with varying pixel areas often experience brightness deviations due to structural or manufacturing causes, leading to reduced display quality.
Innovation Solution
A display apparatus design featuring a substrate with pixel areas of different surface areas, connected by a notch and peripheral areas, where scan lines and connecting lines are strategically arranged with an insulation layer to ensure uniform brightness across the substrate, using inorganic insulation materials and synchronized scan drivers to minimize deviations in thin film transistors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pixel areas of different surface areas are used in the display apparatus, then the display apparatus can accommodate various display areas with different surface areas, but brightness deviation occurs leading to reduced display quality
Solution Approach 1:
The patent applies local quality by configuring different scan line structures in different pixel areas. Specifically, the first scan line includes a first portion in the second pixel area, a second portion in the third pixel area, and a third portion connecting them in the notch peripheral area, while the second scan line is disposed only in the first pixel area. This localized structural differentiation compensates for brightness deviations in different display areas.
Solution Approach 2:
The patent changes the geometric parameters of scan lines to achieve brightness uniformity. The surface area of the first scan line in the second pixel area, third pixel area, and notch peripheral area is controlled to be from about 90% to about 110% of the surface area of the second scan line in the first pixel area. This parameter adjustment compensates for the different surface areas of various pixel regions.
2Stability of the object's composition
If scan lines are extended into notch peripheral areas to connect pixel areas, then connectivity between pixel areas is achieved, but the complexity of scan line configuration increases
Solution Approach 1:
The patent segments the first scan line into distinct portions: a first portion disposed in the second pixel area, a second portion disposed in the third pixel area, and a third portion connecting them disposed in the notch peripheral area. This segmentation allows each portion to be optimized for its specific function while maintaining overall connectivity.
Solution Approach 2:
The third portion of the first scan line, disposed in the notch peripheral area, acts as an intermediary element that connects the first portion (in the second pixel area) to the second portion (in the third pixel area). This intermediary structure enables connectivity between spatially separated pixel areas without requiring direct contact between them.
Data Source
AI summary
A display apparatus includes a substrate which includes a first pixel area and a second pixel area. A third pixel area is spaced apart from the second pixel area. A notch peripheral area is adjacent to the first, second and third pixel areas. A plurality of pixels are provided in the first, second and third pixel areas. A first scan line is disposed on the substrate. The first scan line includes a first portion disposed in the second pixel area, a second portion disposed in the third pixel area, and a third portion which connects the first portion to the second portion. The third portion is disposed in the notch peripheral area. A second scan line is disposed on the substrate in the first pixel area. A surface area of the first scan line is from about 90% to about 110% of a surface area of the second scan line.