Set-Top Box Backlight Brightness Control via HDMI
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Solution Overview
Problem
Current television systems lack user-friendly and integrated solutions for dynamically adjusting backlight brightness, which affects power consumption and visual comfort, and set-top boxes cannot effectively control television backlight brightness.
Innovation Solution
A method and system utilizing a set-top box with a user interface controlling module and a command transmitting module to adjust the backlight brightness of a television via HDMI, allowing users to input commands through a remote or screen to change the backlight brightness levels based on their needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the brightness of the display screen is increased, then the displayed colors become brighter and the display effect improves, but the power consumption increases and visual fatigue increases
Solution Approach 1:
The patent implements dynamic backlight brightness adjustment by enabling the set-top box to send control commands to the television to adjust backlight levels based on real-time picture content analysis. The system continuously monitors picture brightness and gray scale information, then dynamically adjusts backlight brightness accordingly, transforming the static backlight system into a dynamic one that adapts to content requirements rather than maintaining fixed high brightness levels.
Solution Approach 2:
The system changes the backlight brightness parameter based on statistical analysis of picture content. By calculating brightness and gray scale parameters from the displayed content and comparing them against threshold values, the system adjusts the backlight brightness parameter to appropriate levels, achieving energy savings while maintaining adequate display quality for different content types.
2Illumination intensity
If the brightness of the display screen is increased, then the display effect improves, but visual fatigue increases
Solution Approach 1:
The system adjusts the backlight brightness parameter based on statistical analysis of picture content. By calculating brightness and gray scale parameters from the displayed content and comparing them against threshold values, the system adjusts the backlight brightness parameter to appropriate levels, achieving energy savings while maintaining adequate display quality for different content types.
3Adaptability or versatility
If the box and the television perform function operations and parameter adjustment separately, then each device maintains independence, but the user experience decreases and the box cannot adjust television backlight brightness
Solution Approach 1:
The patent merges the backlight control functionality into the set-top box system. The box now performs both content delivery and backlight brightness control functions through integrated processing. The set-top box analyzes picture content and generates backlight adjustment commands that are sent to the television, combining what were previously separate functions (content playback and display parameter control) into a unified system that improves user experience.
Solution Approach 2:
The set-top box is enhanced with multi-functionality, now serving both as a content delivery device and a display parameter control device. By adding the capability to analyze picture content and adjust television backlight settings, the box becomes a universal control unit that manages both media playback and display optimization, eliminating the need for separate control mechanisms.
Data Source
AI summary
Provided are a method for adjusting backlight brightness of a television by a box and a box for adjusting backlight brightness of a television. The box includes a user interface controlling module and a command transmitting module. The method includes: triggering the user interface controlling module in response to a signal input from the outside; and the command transmitting module transmitting an adjusting command to the television. The method and the box according to embodiments of the present disclosure can adjust the backlight brightness of a television by interaction between a box and the television based on the user's need.