Display Controller Channel Layout for Synchronized Local Dimming Data
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing data transmission methods in liquid crystal display devices struggle to synchronize image data with local dimming data, leading to unsatisfactory picture quality due to the separate setting of dimming controllers and the use of different data protocols for image and local dimming data.
Innovation Solution
A data transmission method where a controller transmits image and local dimming data synchronously to source drivers via a unified data transmission channel, eliminating the need for separate dimming controllers and protocols, using a P2P protocol for image data and a lock signal transmission channel for feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate dimming controllers and different data protocols are used for image and local dimming data transmission, then the transmission paths are independent and stable, but the synchronization between image data and local dimming data is difficult to achieve, resulting in unsatisfactory picture quality
Solution Approach 1:
The patent merges the transmission of image data and local dimming data into a single data transmission channel. The controller packages both types of data together and transmits them through the same P2P protocol channel to the source driver, ensuring they arrive simultaneously and are properly synchronized for display.
Solution Approach 2:
The patent makes the data transmission channel universal by enabling it to carry both image data and local dimming data through the same protocol. The P2P protocol is designed to handle multiple types of display data, eliminating the need for separate dedicated channels for different data types.
2Reliability
If a separate dimming controller is set up for transmitting local dimming data, then the transmission of local dimming data is independent, but the system complexity increases and additional hardware is required
Solution Approach 1:
The controller is designed with multi-functionality to handle both image data transmission and local dimming data transmission through the same P2P protocol channel, eliminating the need for a separate dimming controller while maintaining reliable transmission of both data types.
Solution Approach 2:
The patent combines the functions of the main controller and dimming controller into a single controller unit. This controller integrates both image processing and local dimming control capabilities, reducing hardware complexity while maintaining transmission reliability through unified data management.
Data Source
AI summary
The present application provides a data transmission method and a controller. The method is applied to the controller, and specifically comprises: a driving system comprising a controller and a plurality of source drivers, and a first data transmission channel and a second data transmission channel each being arranged between the controller and each source driver. The controller obtaining image data corresponding to each source driver and local dimming data corresponding to each source driver, and transmitting image data to each source driver via the first data transmission channels; and transmitting the local dimming data to each source driver via the first data transmission channels or the second data transmission channels. The method of the present application synchronously transmits image data and local dimming data, enhancing data transmission stability and making picture quality display more ideal.