A liquid crystal television circuit system and interface

Abstract

The invention discloses a liquid crystal television circuit system and an interface. The liquid crystal television circuit system includes a TCON drive module and a core board. The TCON drive module integrates a TCON drive part, an upper screen interface and an FFC interface. The core The board includes the main control SOC chip of the core, and is integrated with an FFC interface; the FFC interface is used to connect the core board and the TCON drive module, the number of PIN pins of the FFC interface is 80, and the PIN pin functional area includes a level conversion area , interface detection area, SPI area, I2C area, display data area, LOCK area, TBD area, VIN area and GND area; the present invention makes the FFC interface adaptable to different The liquid crystal display screen can be placed on the PCB compatible with the existing standard VBO interface, which saves the circuit design area and expands the application range.

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 ...

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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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