Display Brightness Adjustment via Content Type Detection
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Solution Overview
Problem
Existing display technologies lack the ability to flexibly adjust the brightness of specific regions of a display image based on content types without increasing cost or complexity, leading to suboptimal viewing experiences when different types of content are rendered on the same screen.
Innovation Solution
A system comprising a host processor and a co-processor that determines the type of content and adjusts the display's light source intensity accordingly, allowing for flexible brightness adjustments within a display image by processing the image to accommodate the brightness requirements of different content types, using pre-stored intensity settings or user inputs, without requiring additional hardware complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the display uses a fixed brightness level suitable for computer graphics, then computer graphics are displayed optimally, but video content appears too dim
Solution Approach 1:
The display system dynamically adjusts brightness levels based on the type of content being displayed. The processor determines whether content is video or computer graphics and automatically switches between high brightness mode for video and low brightness mode for computer graphics, making the display adaptable to different content types without user intervention
Solution Approach 2:
The system changes the brightness parameter of the display based on content type detection. When video content is detected, the brightness is increased to a higher level; when computer graphics are detected, the brightness is reduced to a lower level, optimizing viewing conditions for each content type
2Illumination intensity
If the display increases brightness for video content, then video appears brighter, but computer graphics become too bright when displayed simultaneously
Solution Approach 1:
The display screen is segmented into different brightness zones. The region displaying video content receives high brightness illumination, while the region displaying computer graphics maintains low brightness illumination. This allows multiple content types to be displayed simultaneously at their optimal brightness levels without mutual interference
Solution Approach 2:
Different regions of the display have different brightness qualities tailored to the content type. Video regions are made brighter while computer graphics regions remain dimmer, creating local variations in illumination intensity that match the viewing requirements of each content type
3Illumination intensity
If the display uses adjustable backlight levels, then overall brightness can be controlled, but separate control over portions of the screen is not provided
Solution Approach 1:
The display system automatically determines the type of content being displayed and self-adjusts the brightness levels without user intervention. The processor analyzes the content and automatically switches between high and low brightness modes or creates regional brightness variations, eliminating the need for manual user control while achieving optimal viewing conditions
4Illumination intensity
If content is authored for television displays with high luminance, then video quality is optimized, but the content appears too dark on computer monitors with lower luminance
Solution Approach 1:
The computer display dynamically adjusts its luminance output to match the requirements of the displayed content. When television-optimized video content is detected, the display increases its luminance to television levels, allowing the same content to be displayed optimally on both television and computer monitor types
Data Source
AI summary
To adjust brightness of at least a portion of a display image, a type of content to be included within the display image is determined and, based on the identified content type, the light source of the display is set to an adjusted intensity. Thereafter, that portion of the display image unrelated to the content requiring adjusted brightness is processed to account for the adjusted intensity of the light source. Because the processing in accordance with the present invention is performed entirely on one or more processors that provide the display images to the display, the present invention overcomes the added complexity and cost associated with prior art techniques, while simultaneously providing the flexibility to quickly adjust display brightness based on types of content being included in the displayed image.