Display Panel Driver Managing Luminance Deviation for Surrounding Display Area
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Solution Overview
Problem
Display devices have limited display areas due to bezel parts occupied by driving circuits, and existing solutions like pixel-on-driver technology struggle to maintain a clear boundary between the main display area and the surrounding display area.
Innovation Solution
A display device with a display panel and driver that includes a surrounding display area below at least one panel driving circuit, where the driver divides input images into two parts based on luminance deviation, adjusting pixel density and luminance to minimize the visual recognition of the boundary between the main and surrounding display areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a surrounding display area is added below the main display area to expand the display region, then the display area is increased, but the pixel density in the surrounding display area is lower causing a visually recognizable boundary with the main display area
Solution Approach 1:
The patent applies local quality by using different pixel densities in different regions: the main display area uses high pixel density pixels while the surrounding display area uses low pixel density pixels. This allows each region to have optimized characteristics for its specific function, with the main area providing high quality display and the surrounding area providing additional display space with relaxed pixel density requirements.
Solution Approach 2:
The patent changes the pixel density parameter between different display regions. By adjusting the pixel density from high in the main display area to low in the surrounding display area, the system optimizes the overall display performance while maximizing the usable display area. This parameter change allows the surrounding area to be visually integrated despite the lower pixel density.
2Area of stationary object
If the pixel density in the surrounding display area is reduced to accommodate more display region, then the display area is expanded, but the boundary between main and surrounding display areas becomes visually recognizable
Solution Approach 1:
The patent implements local quality by assigning different pixel densities to different spatial regions. The main display area maintains high pixel density for superior image quality, while the surrounding display area uses low pixel density pixels positioned at greater intervals. This localized differentiation allows the system to expand display area while managing the visual transition between regions through careful positioning and density control.
Data Source
AI summary
A display device includes: a display panel including a surrounding display area, below which at least one panel driving circuit is positioned, and a main display area surrounded by the surrounding display area, the display panel including first pixels having a first pixel density and disposed in the surrounding display area and second pixels having a second pixel density greater than the first pixel density and disposed in the main display area; and a display panel driver to divide an input image to be displayed on the display panel in each frame into a first image to be displayed on the surrounding display area and a second image to be displayed on the main display area, calculate a luminance deviation of the first image, and determine whether to display the first image in the surrounding display area based on the luminance deviation of the first image.