LCD TV, port knowledge

RS-232
Digital display devices appear RS-232 interface is not as video transmission, but the image adjustment device.
RS232C connector: RS-232C standard (protocol) stands for EIA-RS-232C standards, including EIA (ElectronicIndustryAssociation) on behalf of the American Electronics Industry Association, RS (ecommededstandard) represent recommended standard identification number is 232, which provides cable and mechanical , electrical characteristics, functions and signal transmission process. The maximum transmission rate of 20kbps, cable up to 15 meters. RS232C port is used for computer input control signal.OLED Display

DVI (DVI-I, DVI-D, DVI-A)
In some high-end product specifications, some would otherwise have DVI (DigitalVisualInterface) connector, DVI interface is mainly used in conjunction with a digital display output is connected to a computer graphics display the computer's RGB signals. DVI (DigitalVisualInterface) digital display interface, by September 1998, at the Intel Developer Forum, established by the Digital Display Working Group (DigitalDisplayWorkingGroup referred DDWG), developed by digital display interface standard.

DVI digital signal terminals is better than the standard VGA terminal, the entire contents of the digital interface ensures a digital format for transmission to ensure that the host computer to monitor the integrity of data during transmission (no interference signal into), you can get a clearer image. The main purpose is to allow DVI graphics card via digital picture signals transmitted to the computer screen. Because the previous CRT screen uses an analog signal, so the traditional D-sub15pin computer screen connector is taking the analog signal (composite signal) will display the card of the digital picture signal into an analog signal to the computer screen to go.

Since the digital display (LCD projectors, plasma TV, LCDTV and other digital display products) uses pure digital device, then directly through the digital interface input digital signal will be better of course, but through D-sub15pin becomes somewhat unwise ( first digital signal to an analog signal, and then the analog signals into digital displays, and finally through the digital display to digital signals inside again).160x160 lcd

DVI connector, there are three, namely DVI-Digital (DVI-D), DVI-Analog (DVI-A) with DVI-Integrated (DVI-I), DVI-Digital (DVI-D) only supports digital display devices, DVI -Analog (DVI-A) only supports analog display devices, DVI-Integrated (DVI-I) is to support digital display with analog display. There is such a mix of all, because although DVI digital display device to the standards set, but because through digital transmission does not reduce the effect of the screen, along with in order to consider can be converted into analog signals, so will There are DVI-D, DVI-A DVI-I with three joints, which can be compatible with DVI-I DVI-D devices (including cable), but the DVI-D connector is not able to use the DVI-I cable, so you will see a digital display device is DVI-D connector, cable connector is DVI-I, DVI-I graphics card is the connector. And DVI-I adapter also become D-sub15pin.

HDMI
HDMI interface called the next century international digital TV standard "High-DefinitionMultimediaInterface (HDMI)" is on 9 December 2002 by the HDMIFounders (HDMI Forum) Confirm High-DefenitionMultimediaInterfaceSpecificationVersion1.0 specifications. Pioneere more in October 18, 2003 launched the world's first HDMIDVD player DV-S969AVi-N, HDMI interface, is now almost a fever-level representative.

HDMI-1
HDMIFounders (HDMI Forum) by a Hitachi, Matsushita Electric, RoyalPhilips, SiliconImage, Sony, Thomson, Toshiba and other seven international appliance manufacturers components. HDMI to DVI-based but offers higher bandwidth, maximum bandwidth of 5Gbit/Sec, the highest quality HDTV requires only 2Gbit/Sec, there is a great amount set aside for possible future higher standards of digital signal . And joined the HDCP copy protection mechanisms while increasing the digital audio transmission, thus becoming a dedicated multimedia interface. HDMI support 1920 * 1080P high-definition digital signals, and supports DolbyDigital / DTS digital audio formats.