Liquid crystal television circuit system and interface

Abstract

The invention discloses a liquid crystal display television circuit system and an interface, the liquid crystal display television circuit system comprises a TCON driving module and a machine core board, the TCON driving module integrates a TCON driving part, an upper screen interface and an FFC interface, and the machine core board comprises a machine core main control SOC chip and integrates anFFC interface; and the FFC interface is used for connecting the machine core board and the TCON driving module, the number of PINs of the FFC interface is 80, and a PIN functional area comprises a level conversion area, an interface detection area, an SPI area, an I2C area, a display data area, an LOCK area, a TBD area, a VIN area and a GND area. According to the invention, the FFC interface containing 80 PINs is arranged, so that the FFC interface can adapt to different liquid crystal display screens and can be compatible with the existing standard VBO interface to be placed on the PCB, the circuit design area is saved, and the application range is expanded.

Description

technical field [0001] The invention relates to the technical field of liquid crystal televisions, in particular to a liquid crystal television circuit system and an interface. Background technique [0002] The TCON board is a necessary functional module inside the LCD TV. Its function is to convert the data signal format (V-By-One, LVDS, EDP, etc.) sent by the core board into a data signal format that can be recognized by the Source IC on the LCD screen. (MiniLVDS, USI-T, ISP, EPI and other formats), and provide timing control signals on the screen to ensure that the image data sent by the core board can be correctly displayed by the LCD screen. The main functional area of ​​the TCON module includes the TCON main control part and the TCON driving part. Traditionally, the TCON main control part is realized by a dedicated TCON main control IC. The main function is to convert the data signal format and generate the TCON control signal. The TCON driving part It is realized by ...

AI Technical Summary

Problems solved by technology

However, in the actual development of the TV set project, the same core solution is often matched with glass from different screen manufacturers. Since domestic and foreign display glass manufacturers have not formed a unified standard for the interface of the screen input terminal, the interface of the drive circuit implementation scheme is inconsistent. 1. However, the use of integrated circuit board signal processing + screen drive mode requires the development of circuits with different interfaces, resulting in low development efficiency, poor universal type of integrated circuit board, and high development costs

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