Non-Rectangular Display Driving Circuit Segmentation
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Solution Overview
Problem
Conventional non-rectangular display apparatuses face challenges in achieving a narrow frame edge width due to the rectangular shape of driving circuits, which restricts the size and shape of the substrate, and require special dicing equipment for non-rectangular IC chip slicing.
Innovation Solution
The display apparatus features a non-rectangular active matrix display section with driving circuits, such as scan line and signal line driving circuits, composed of active elements that conform to the display section's shape, allowing high-density arrangement along the outer circumference, using the same manufacturing equipment and process as the active matrix, with adjustable circuit unit block intervals for signal delay and flexible layout to minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If rectangular driving circuits are used in non-rectangular display apparatus, then the display section can be made non-rectangular, but the substrate size and shape are limited by the rectangular driving circuit, preventing narrow frame edge width
Solution Approach 1:
The driving circuit is divided into multiple circuit units that are arranged in a matrix pattern along the outer circumference of the display section. This segmentation allows the driving circuit to conform to the non-rectangular shape while maintaining high integration density, enabling the substrate to match the display section's shape and size for narrow frame edge width.
2Shape
If non-rectangular IC chip slicing is performed, then the driving circuit can match the display section shape, but special dicing equipment is required
Solution Approach 1:
The driving circuit is segmented into multiple rectangular circuit units arranged in a matrix pattern on the substrate. This allows the overall driving circuit to achieve a non-rectangular shape conforming to the display section while each individual circuit unit remains rectangular, compatible with conventional rectangular dicing equipment and manufacturing processes.
3Length of stationary object
If driving circuit size is reduced to match display section, then narrow frame edge width is achieved, but circuit integration density must be increased
Solution Approach 1:
The driving circuit units are arranged in a two-dimensional matrix pattern along the outer circumference of the display section rather than a linear arrangement. This dimensional change allows for higher integration density within the limited space, enabling the driving circuit to be miniaturized to achieve narrow frame edge width while maintaining all necessary circuit functionality.
Data Source
AI summary
Disclosed is a display apparatus comprising an active matrix display section including a plurality of signal lines and scan lines, arranged in a matrix on a substrate, and a plurality of pixels and active elements arranged at intersections of the signal and scan lines, a scan line driving circuit for driving the scan lines and a signal line driving circuit for driving the signal lines. The display section has a non-rectangular shape. The active elements that make up the scan line driving circuit and/or the signal line driving circuit are formed by the same manufacturing process as that for forming the active elements in the active matrix display section. The scan line driving circuit and/or the signal line driving circuit are each a set of circuit units having the same function. These circuit units are arranged to conform to and extend around the outer circumference of the non-rectangular display section.