Opposite-Side Scan Drivers for Compact EL Display Layout
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Solution Overview
Problem
The layout area of the scan driver in existing electro-luminescence (EL) display devices is large, causing the display panel to be bulky and increasing the overall size of the device due to the driver being integrated on one side, which restricts the panel's placement and compactness.
Innovation Solution
The implementation of a display device with a pair of scan drivers positioned on opposite sides of the panel, minimizing the layout area by rearranging subpixels in a vertical stripe form and optimizing the circuit parts' height and width to reduce the required layout space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the scan driver is integrated on one side of the display panel, then the driver functionality is provided, but the layout area becomes large and the overall device size increases
Solution Approach 1:
The scan driver is divided into multiple segments and distributed across different sides of the display panel. Specifically, first and second scan drivers are placed on opposite sides, with each responsible for driving scan lines in different regions (odd and even scan lines respectively). This segmentation reduces the layout area required for each driver segment while maintaining complete driver functionality.
2Volume of moving object
If the scan driver layout area is reduced, then the display panel can be placed centrally and the device becomes more compact, but the driver functionality must be maintained
Solution Approach 1:
The scan driver functionality is segmented into multiple independent driver units distributed around the panel. This allows the overall device volume to be reduced while maintaining reliable scan line driving through parallel operation of multiple driver segments, each handling specific scan lines.
Solution Approach 2:
Multiple scan driver segments are combined to collectively drive all scan lines of the display panel. The first scan driver handles odd scan lines while the second scan driver handles even scan lines, merging their functions to achieve complete coverage with reduced individual driver sizes.
3Area of stationary object
If subpixels are arranged in vertical stripe form and circuit dimensions are optimized, then the layout space is reduced, but the subpixel arrangement and circuit design become more complex
Solution Approach 1:
The subpixels are arranged in vertical stripe form with different orientations in different regions of the panel. This local variation in arrangement optimizes the use of layout space in different areas while maintaining overall functionality. The circuit dimensions are also locally optimized to fit the specific regional requirements.
Solution Approach 2:
The subpixels are arranged in a vertical stripe configuration rather than traditional horizontal arrangements, changing the dimensional orientation of the pixel structure. This dimensional change allows for more efficient space utilization and enables the compact layout achieved in the invention.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration allows for a more compact display panel design, enabling the panel to be placed centrally while reducing the horizontal layout area, thus mitigating the size increase caused by the scan driver's layout and achieving a more compact EL display device.
Implementation Method 1
The EL display is a self-luminous device that emits light by using a fluorescent material through a recombination of electron and hole
Data Source
AI summary
A display device configured to minimize a layout area of a driver and a method of driving the same is provided. First and second scan drivers are disposed on opposite sides of a display panel. Each of the first and second scan drivers has a plurality of circuit parts corresponding to a plurality of scan lines. A height of the circuit part is equal to a height of subpixels adjacent in a vertical direction. A scan pulse generated from a circuit part of the first scan driver can be supplied to a circuit part of the second scan driver and subpixels disposed on the scan line connected to the circuit part. The circuit part of the second scan driver generates another scan pulse in response to the scan pulse.