LCD Common Terminology Comparison Table
LCD Liquid Crystal Display LCM Liquid Crystal Module TN Twisted NemaTIc Twisted Nematic. Liquid crystal molecules twisted by 90 °
STN Super Twisted NemaTIc Super twisted nematic. About 180 ~ 270 ° twisted nematic FSTN Formulated Super Twisted NemaTIc Format super twisted nematic. A layer of optical path compensation film is added to STN for monochrome display TFT Thin Film Transistor TFT Backlight — Backlight Inverter — Inverter OSD On Screen Display DVI Digital Visual Interface (VGA) Digital Interface TMDS TransiTIon Minimized Differential Signaling
LVDS Low Voltage Differential Signaling Low Voltage Differential Signaling Panelink —
IC Integrate Circuit integrated circuit TCP Tape Carrier Package flexible circuit board COB Chip On Board COF Chip On Board fixed IC bare chip on printed circuit board by bonding COG Chip On Glass COG Chip On Glass fixed chip on glass Upper Duty — Duty ratio, the ratio of the part that is higher than the threshold voltage of lighting in one cycle. LED Light Emitting Diode EL Electro Luminescence. The EL layer consists of high molecular weight flakes CCFL (CCFT) Cold Cathode Fluorescent Light / Tube Cold Cathode Fluorescent Lamp PDP Plasma Display Panel Plasma Display CRT Cathode Radial Tube Cathode Ray Tube VGA Video Graphic Array Video Graphic Array PCB Printed Circuit Board Composite video — Composite video Component video —
S-video — S terminal, compared with composite video signal, transmits contrast and color separation NTSC National Television Systems Committee NTSC standard, National Television System Committee standard PAL Phase Alternating Line
SECAM SEquential Couleur Avec Memoire SECAM (sequence and storage color TV system)
VOD Video On Demand DPI Dot Per Inch
Active Matrix:
Active matrix: An LCD technology that uses memory elements called TFT (Thin Film Transistor) to create individual active pixels. Active matrix allows full motion video and animation, unlike passive matrix. The color also has more vibration than the passive matrix. There are two types of active matrix technology: AmorphousTFT (amorphous TFT) and PolysiliconTFT (polysilicon TFT).
Amorphous TFT:
Amorphous TFT: A type of active matrix used for LCD screens from one to three. The transistor in the amorphous TFT is larger than that in the polysilicon TFT, which means that the panel in the amorphous TFT is larger than the panel in the polysilicon TFT.
Analog Video
Analog video: A continuous changing electrical signal that transmits images and sound. VGA display cards use this type of signal to transmit information to the display.
ANSI Lumens:
ANSI lumens: A method of measuring the brightness of the projected image on the screen. The image of one square meter is divided into nine parts on average, and the brightness value of the center point of each part is measured, and then the average value of nine points is obtained. This brightness measurement method is used on all LCD projectors.
Aspect Ratio
Aspect ratio: The ratio of the width and height of an image or screen. Width = 1.33 height = 1 (1.33: 1).
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Bandwidth:
Bandwidth: The amount of information that the hardware (or cable) can transmit in a given time interval. The difference between the highest frequency and the lowest frequency in a band is represented by Hertz.
BNC Connector
BNC connector: A connector commonly used in workstations and coaxial cables. The BNC cable has 5 connectors for receiving red, green, blue, horizontal sync and vertical sync signals.
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CAD / CAM:
Computer Aided Design and Computer Aided Manufacture. The software allows users to create and manufacture models graphically on the computer to replace physical models.
CD-ROM:
Compact Disc-Read Only Memory. 4.75-inch disk is used to store or rewrite information. CD-ROMs are outstanding storage media because they can store more than 600 megabytes of information.
CGA:
Color Graphics Adapter. IBM's first-generation color graphics cards can only provide four colors at 320x200 resolution. The CGA standard has been abandoned.
Color-24 bit
24-bit color: Refers to the total number of colors per pixel. 24-bit = 16.7 million colors. Each pixel has 8 bits of information for each color (RGB), and there are more than 167,000 possible color combinations.
Color Palette:
Palette: The total number of colors that can be used provided by the device.
Composite Video:
Composite video: contains mixed signals of red, green and blue.
Compression:
Compression: Display higher resolution images on lower resolution LCD devices. For example, when displaying 800x600 on a 640x480 LCD, a small amount of data is lost to fit all images (which may make the image unclear).
Contrast Rati
Contrast: A method of measuring color contrast, which measures the contrast between black and white colors. High contrast (100: 1) has higher brightness and clearer images.
CRT:
Cathode Ray Tube: cathode ray tube, video display terminal of kinescope.
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Device Driver:
Device driver: software for communication between the computer and peripheral devices.
Dicroic Optic System
Dicroic lens system: lens and prism system, used to mix colors from 3 monochrome LCD panels, often used in polysilicon TFT, but also used in some amorphous TFT devices
Digital Video:
Digital video: computer data that creates images and sounds. They have two states: high or low, and on or off. CGA, EGA and MDA video display chips use this signal type to transmit information to the display. These graphics cards are no longer the industry standard.
Digitize:
Digitization: Digitally convert analog information to digital information. Analog information must be converted to digital signals before it can be processed by a computer.
DIN Connector:
DIN connector: A 4-core round connector for S-VHS.
DLP:
Digital Light Processing: The digital micromirror device (DMD) on the surface is used as a projection technology to project the image onto the screen by reflected light. The DMD film contains thousands of micromirrors, each mirror represents a Pixels, on or off can create an image. DLP produces colors due to the color wheel (composed of red, green, and blue) placed on the path of the light source. The unique feature of DLP is that although the resolution increases, the brightness also increases. Higher resolution means more micromirrors reflect light.
DMD:
Digital Micromirror Device: Digital micromirror device. A film made up of thousands of very small mirrors. Each mirror represents a pixel and can be turned on or off to create an image.
DSTN:
Double SuperTwist Nematic Double supertwisted nematic type, a form of passive matrix, DSTN is monochrome.
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EGA:
Enhanced Graphics Adapter Graphics adapter: Introduced by IBM in 1984, the resolution is 640x350 at 16 colors and 60 Hz. EGA is obsolete.
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Focus Range:
Focus range: The distance range that the projection device can reach from the target surface / screen. Projection equipment is recommended to be installed or placed within this distance to ensure image quality and clarity.
Frequency:
Frequency: A unit of measurement for electrical signals. On some LCD machines, frequency is a menu selection for adjusting the vertical noise bar.
Front Projection:
Front projection: projection from the same side of the viewing to the screen or wall.
Full Motion Video:
Full motion video: TV quality or better than TV quality, moving video images (30 frames per second or higher) displayed on the PC window or full screen.
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Gray Scale:
Gray scale: an item used to describe the amount of gray shading and white and black in the image.
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Halogen Bulb:
Halogen lamp: produces bright, yellowish light.
Hertz (Hz):
Hertz, the unit of frequency, is equal to laps per second. The vertical scan rate is measured with Hertz, 60 Hertz = 60 cycles per second.
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Infrared:
Infrared: Invisible light that has just passed the red end of the visible spectrum. Infrared has a longer wavelength than visible light and shorter than radio waves. Infrared only works at short distances (within 40 feet) and is often used for remote control.
Interlaced Video:
Interlaced video: The even-numbered lines pass on one screen while scanning, and the odd-numbered lines are displayed on the next screen. The fading line at each pass can cause the screen to flicker.
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Lamp Hours:
Lamp hours: The period of time during which a lamp can continuously provide sufficient light source to display an image in a projection system.
LCD:
Liquid Crystal Display. Developed by the RCA laboratory in 1968, the LCD operates like a light valve, allowing light to pass from one place or be blocked. It is a comprehensive application of electronics, optics and chemistry.
Lumens:
Lumen: A unit of measurement of brightness at a light source. This is the unit of measurement used for projector brightness.
Lux:
Lux: The unit of measurement of the original measured light output, measured by the photometer. Lux is often used to calculate lumens.
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Metal Halide Bulb:
Metal halide lamp: can produce very bright, very white light.
Monochrome:
Monochrome: A single-color gradient display, the device is usually gray or magenta on the LCD.
Multimedia:
Multimedia: It integrates elements of different media (text, graphics, audio, still images, animation and motion video) for computer display and control.
Non-interlaced Video:
Non-interlaced video: This method has no blanking and cannot produce screen flicker.
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NTSC:
National Television Systems Committee. It is the TV standard of some countries in North America, Japan and South America. NTSC has a resolution of 525 lines and a refresh rate of 60 Hz. NTSC refers to a video or television signal.
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OHP:
OverHead Projector (overhead projector). LCD panel requiring light source. They have two types: 1) reflective type: the light source is at the head; 2) transmissive type: the light source is at the bottom.
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PAL:
Phase Alternate Line. It is the TV standard of some countries in Western Europe, Asia, Australia, Africa and South America. PAL has a resolution of 625 lines and a refresh rate of 50 Hz. PAL refers to a video or television signal.
Panel:
Panel: A display device installed on top of an overhead projector. The overhead projector obtains the light source from the panel, and then the panel is inserted into the computer to project computer images on the wall or screen.
PCMCIA:
Personal Computer Memory Card Interface Association (Personal Computer Memory Card Interface Association). A PC card. The PC card is used to connect memory, I / O devices, and a hard disk to a personal computer. They have three types: Class I, Class II and Class III.
Pixel:
Pixel: The smallest image unit. This smallest graphic unit can display a single stained dot on the screen.
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RCA Connector:
RCA connector: used for most stereo equipment and video recorders, audio and video input sockets.
Refresh Rate:
Refresh rate: the number of times an image is generated per second, expressed in Herts. For example: 60Hz or 60 times per second, the higher the frequency the more stable the image.
Resolution:
Resolution: The number of pixels (or dots) that make up an image. The more pixels, the higher the resolution, and the smoother the display. High resolution allows more information to be displayed. VGA = 640x480, SVGA = 800x600, 1024x768, 1280x1024.
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S-VHS:
Super-Video Home System: A recorder with a higher resolution than normal composite video. It is also used for different connections to composite video.
SCSI:
Small Computer Systems Interface. SCSI is a second-class hardware standard universal interface. Most scanners and CD-ROM drives are SCSI. You can attach seven SCSI devices to a SCSI interface.
SVGA:
Super Video Graphics Array (Super Video Graphics Array): used to express higher resolution than VGA (640x480, 16 colors) The output resolution of most computers / cards is 1024x768.
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Vertical Hum-Bars:
Vertical noise bar: black, vertical stripes displayed on the LCD panel, moving the noise bar is used to adjust the tracking (on the menu options in multiple LCDs).
Vertical Scan Rate:
Vertical scanning frequency: the speed at which an image is redrawn on the screen in Hertz. Typical is 50-75Hz.
VESA:
Video Electronics Standard Association Video Electronics Standard Association. It is used to define a higher video resolution standard than VGA, and is usually used for the vertical scanning frequency of 72Hz or 75Hz.
VGA:
Video Graphics Array video graphics array display. By far the most widely accepted graphics hardware standard by graphics card and display manufacturers. 640x480 resolution, in fact all current graphics cards and monitors can handle higher resolutions in 16 colors.
Video:
Video: visual or image information. Convert moving or still images into electrical signals. In computer video, the red, green, blue and sync signals are separate electrical signals. In VHS video, the red, green, blue, and sync signals are a single electrical signal. In S-VHS video, the red, green, blue and sync signals are separated.
Video Ports:
Video port: On a Macintosh, the video port consists of a total of 15 cores in two rows, 8 cores in the top row and 7 cores in the bottom row. In the PC, it is composed of three rows of 15 cores, each row of 5 cores.
Workstation:
Workstation: Workstation has multiple definitions. In the LCD industry, workstations are usually applied to:
The connection type of the workstation computer is 13W3 or BNC connector; the resolution of the workstation computer can reach 1280X1024;
Other workstations are different from desktop computers: workstations usually run UNIX operating systems, workstations are used for large-scale processing (for example: CAD, CAM, 3-D models), workstations are usually attached to the network. Workstations include: SGI (Silicon Graphics), HP (Hewlett Packard), SUN, NeXT, DEC and Intergraph.
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XGA:
eXtended Graphics Adapter. There is a 15-core high-density cable video card with 1024x768 resolution.
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Y-Connector:
Y-connector: A Y-shaped cable divided into one input and two output signals. In LCDs, this usually allows the monitor to cycle through.
Y / C Connector:
Y / C connector: A 4-pin DIN connector for S-VHS and other cutting-edge recorders to receive Y / C video.
Y / C Vide
Y / C video: S-VHS video signal, which has a higher resolution than composite video.
ACF Anisotropic Conductive Film
COB Chip-On-Board
COF Chip-On-Film
COG Chip-On-Glass
DSTN Double Super Twisted Nematic
FFC Flexible Flat Cable
FPC Flexible Printed Circuit
HSC Heat Seal Connector
HTN High Twisted Nematic
LCD Liquid Crystal Display
LCM Liquid Crystal display Module
PCB Printed Circuit Board
QFP Quad Flat Pack
STN Super Twisted Nematic
TAB Tape Automated Bonding
TCP Tape Carrier Package, synonymous with TAB
TN Twisted Nematic
Universal Series Extension Sockets
Socket Extension,Trailing Socket,Plug Socket Extension,Single Socket Extension Lead
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