Display Device Gate Driver Overlap Bezel Reduction
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Solution Overview
Problem
Existing display devices have a significant bezel area that reduces the effective display space, limiting the expansion of the image area and affecting the overall display quality.
Innovation Solution
The implementation of a display device design where a gate driver is positioned in the peripheral area, allowing it to overlap with pixels in an adjacent display area, and a controller compensates image data to enhance the display quality by utilizing the peripheral area as an additional display area, thereby reducing the bezel width and improving brightness uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the gate driver is disposed in the peripheral area overlapping with pixels, then the display area is expanded and bezel width is reduced, but the brightness uniformity between different display areas deteriorates
Solution Approach 1:
The patent applies local quality by dividing the display area into first display areas (without gate driver overlap) and second display areas (with gate driver overlap), and applying different brightness compensation to each region. The controller identifies pixels in the second display area and compensates their brightness differently from pixels in the first display area, thereby maintaining overall brightness uniformity while expanding the display area.
Solution Approach 2:
The patent changes the brightness parameter of pixels in the second display area through compensation. The controller adjusts the brightness of pixels that are overlapped by the gate driver, modifying this physical parameter to compensate for the brightness reduction caused by the gate driver structure, thus achieving uniform brightness across the entire expanded display area.
2Area of stationary object
If the peripheral area is utilized as additional display area, then the bezel area is reduced and display quality is improved, but the complexity of image signal processing increases
Solution Approach 1:
The patent applies preliminary action by pre-defining the boundary between first display areas and second display areas, and pre-establishing the brightness compensation scheme for pixels in the second display area. The controller is configured to identify and compensate brightness of pixels in the second display area, which simplifies the processing by having a predetermined structure rather than requiring complex real-time analysis.
Data Source
AI summary
A display device includes a display panel including a plurality of first pixels disposed in a first display area and a plurality of second pixels disposed in a second display area adjacent to the first display area, a gate driver disposed in the second display area of the display panel to overlap a portion of the second pixels and driving the first and second pixels, a controller receiving image data and converting the image data to image signals, and a data driver converting the image signals to data signals and outputting the data signals to the first and second pixels. The controller compensates for effective data corresponding to the second pixels and reflects the compensated effective data to the image signals.