Display Module Timing Control for Synchronized Light Strip Brightness
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Solution Overview
Problem
Existing display technologies face challenges in synchronizing the brightness and color of light strips with the actual display brightness and color of video frames, particularly in OLED TVs, leading to a reduced display effect.
Innovation Solution
A display module with a timing controller that includes a brightness adjustment module and a light strip control module, which adjusts the brightness and color of light strips based on the actual display panel's video frames, ensuring synchronization through multiple brightness adjustment units and color extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the light strip control chip is set in the SoC and adjusts brightness based on output video frames, then the light strip can create an immersive atmosphere, but the light strip brightness and color cannot synchronize with the actual display panel brightness and color
Solution Approach 1:
A timing controller is introduced as an intermediary component between the SoC and the light strip. The timing controller receives the video frame, extracts color information, calculates total pixel brightness, and uses this data to control the light strip's color and brightness. This mediator ensures that the light strip accurately synchronizes with the display panel while maintaining the immersive atmosphere.
2Illumination intensity
If the SoC outputs video frames to control display panel brightness, then the display effect is improved, but the light strip cannot accurately reflect the actual display brightness
Solution Approach 1:
The timing controller performs preliminary action by extracting color information and calculating total pixel brightness from the video frame before the display panel renders the image. This pre-processing of brightness information ensures that the light strip can be controlled with accurate brightness data, preventing information loss and achieving synchronization.
3Manufacturing precision
If multiple brightness adjustment units are used to adjust video frame brightness, then the brightness adjustment precision is improved, but the system complexity increases
Solution Approach 1:
The brightness adjustment function is segmented into multiple independent brightness adjustment units within the timing controller. Each unit can independently adjust the brightness of the video frame, allowing for precise control through sequential or combined adjustments. This segmentation enables high precision brightness adjustment while keeping each individual unit relatively simple.
Data Source
AI summary
Provided is a display module, including a display panel and a timing controller. The brightness adjustment module in the timing controller is connected to the light strip control module, and the light strip control module in the timing controller is connected to the light strip; the brightness adjustment module is configured to adjust brightness of pixels of a first video frame to be played to acquire a second video frame and a total pixel brightness of the second video frame; the brightness adjustment module is further configured to drive the display panel to display the second video frame and send the total pixel brightness to the light strip control module; and the light strip control module is configured to control an emission color and brightness of the light strip based on color information and the total pixel brightness.