Display Apparatus Corner Circuit Nesting for Peripheral Area Reduction
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Solution Overview
Problem
Conventional display apparatuses face challenges in expanding the display area while minimizing the peripheral area, which limits the ability to effectively utilize corner and side surfaces for image display.
Innovation Solution
The display apparatus incorporates a substrate with a front display area, corner display areas, and a peripheral area, featuring a main pixel circuit, emission drive circuit, and gate drive circuit, with conductive layers and power supply structures optimized to reduce the peripheral area and enhance display area utilization, including the use of overlapping conductive layers and power supply electrodes to connect and drive pixels efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the display area is expanded to include corner and side display areas, then the display area is increased, but the peripheral area increases which complicates the structure and manufacturing
Solution Approach 1:
The patent extends the display area from the traditional two-dimensional front surface into the third dimension by adding corner display areas that wrap around to the side surfaces. This dimensional extension allows the display to utilize previously unused corner and side regions, effectively increasing the total display area without proportionally increasing the peripheral area complexity.
Solution Approach 2:
The drive circuits are strategically positioned within the corner display areas themselves rather than being completely separate from the display regions. The corner display areas serve dual purposes: as display regions and as housing for the drive circuits, creating a nested configuration that reduces the overall peripheral area required for circuit placement.
2Area of moving object
If drive circuits are arranged in the peripheral area, then the display area is maximized, but the peripheral area becomes larger requiring more space for circuit layout and interconnections
Solution Approach 1:
The patent merges the function of the corner display areas with the function of housing drive circuits. Instead of having separate regions for display and circuit placement, the corner display areas simultaneously serve as both display regions and as locations for accommodating drive circuits, thereby reducing the total peripheral area required.
Solution Approach 2:
By positioning drive circuits within the corner display areas that extend into the third dimension, the patent utilizes vertical and lateral space more efficiently. This dimensional approach allows circuit placement without increasing the front-facing peripheral area, as the circuits are housed in the corner regions that wrap around to the sides.
3Adaptability or versatility
If additional conductive layers and power supply structures are added to support expanded display area, then the display capabilities are enhanced, but the manufacturing process becomes more complex
Solution Approach 1:
The conductive layers and power supply structures designed for the expanded display area also serve multiple functions including driving the corner display pixels, providing power to drive circuits housed in corner regions, and establishing electrical connections across the extended display structure. This multi-functionality reduces the need for additional specialized components and simplifies the overall manufacturing process.
Solution Approach 2:
The power supply structures and conductive layers are nested within the corner display area regions, utilizing the same structural framework that houses the drive circuits. This nested arrangement allows the manufacturing process to deposit and pattern conductive materials in a single integrated sequence rather than requiring separate steps for different regions, thereby reducing manufacturing complexity.
Data Source
AI summary
A display apparatus includes a substrate, a main pixel circuit disposed on the substrate and arranged in a front display area, a first lower conductive layer arranged between the substrate and the main pixel circuit, a common power supply wire arranged in the peripheral area, an emission drive circuit arranged in the peripheral area and located at an inner side than the common power supply wire, a gate drive circuit arranged in the second corner display area, and a second lower conductive layer arranged between the substrate and the emission drive circuit, wherein the second lower conductive layer is electrically connected to the common power supply wire, and overlaps the emission drive circuit and the gate drive circuit.