FAQs

1. Dolby Digital Mono: Mono is the term used to describe sound that is only from one channel. Mono is used widely in talk radio and mobile communications since stereo doesn't really provide any practical advantages in these situations. Recording in mono is less complicated compared to recording in stereo. Most hand-held voice recorders can only record in mono. 2. Dolby Digital Stereo: stereo uses 2 or more channels to provide an experience much like being in the same room where the sound was created. Stereo is essential for broadcasting and listening to music since Mono provides inadequate sound quality. 3. Dolby Digital Surround: Dolby Digital Surround Sound is an advanced form of digital audio coding that makes it possible to store and transmit high-quality digital sound efficiently. It gives a listener/viewer a more realistic feeling. 4. Dolby Digital 5.1 Surround Sound: Dolby Digital 5.1 Surround Sound is an audio coding technique capable of delivering sound with five discrete full-range channels--left, center, right, left surround, and right surround--plus a sixth channel for those powerful low-frequency effects that are felt more than heard in movie theaters. This is commonly known as the subwoofer. The subwoofer needs only about one-tenth the space of the others and is referred to as a "".1"" channel. Therefore, the entire group of channels is named Dolby Digital 5.1 Surround Sound.

Stereoscopy (also called stereoscopic or 3-D imaging) refers to a technique for creating or enhancing the illusion of depth in an image by presenting two offset images separately to the left and right eye of the viewer. Both of these 2-D offset images are then combined in the brain to give the perception of 3-D depth. Three strategies have been used to accomplish this: have the viewer wear eyeglasses to combine separate images from two offset sources, have the viewer wear eyeglasses to filter offset images from a single source separated to each eye, or have the lightsource split the images directionally into the viewer's eyes (no glasses required; known as Autostereoscopy).

LED backlighting in color screens comes in two flavors: white LED backlights and RGB LED backlights. White LEDs are used most often in notebooks and desktop screens, and in virtually all mobile LCD screens. A white LED is typically a blue LED with broad spectrum yellow phosphor to give the impression of white light. Since the spectral curve peaks at yellow, it is a poor match to the transmission peaks of the red and green color filters of the LCD. This causes the red and green primaries to shift toward yellow, reducing the color gamut of the display. RGB LEDs consist of a red, a blue, and a green LED and can be controlled to produce different temperatures of white. RGB LEDs for backlighting are found in high end color proofing displays such as HP DreamColor LP2480zx monitor or selected HP EliteBook notebooks, as well as newer consumer grade displays such as Dell's Studio series laptops which have an optional RGB LED display. RGB LEDs can deliver an enormous color gamut to screens. When using three separate LEDs (additive color) the backlight can produce a color spectrum that closely matches the color filters in the LCD pixels themselves. In this way, the filter passband can be narrowed so that each color component lets only a very narrow band of spectrum through the LCD. This improves the efficiency of the display since less light is blocked when white is displayed. Also, the actual red, green, and blue points can be moved farther out so that the display is capable of reproducing more vivid colors. CCFL backlighting has also improved in this respect. Many current LCD models, from cheap TN-displays to color proofing S-IPS or S-PVA panels, have wide gamut CCFLs representing more than 95% of the NTSC color specification.

IPS stands for In-plane switching. In-plane switching was developed by Hitachi Ltd. in 1996 to improve on the poor viewing angle and the poor color reproduction of TN panels at that time.[6] Its name comes from the main difference from TN panels, that the crystal molecules move parallel to the panel plane instead of perpendicular to it. This change reduces the amount of light scattering in the matrix, which gives IPS its characteristic wide viewing angles and good color reproduction.[7] Initial iterations of IPS technology were plagued with slow response time and a low contrast ratio but later evolutions have made marked improvements to these shortcomings. Because of its wide viewing angle and accurate color reproduction (with almost no off-angle color shift), IPS is widely employed in high-end monitors aimed at professional graphic artists, although with the recent fall in price it has been seen in the mainstream market as well.

MVA stands for Multi-domain vertical alignment. Multi-domain vertical alignment was originally developed in 1998 by Fujitsu as a compromise between TN and IPS.[citation needed] It achieved pixel response which was fast for its time, wide viewing angles, and high contrast at the cost of brightness and color reproduction. Modern MVA panels can offer wide viewing angles (second only to S-IPS technology), good black depth, good color reproduction and depth, and fast response times due to the use of RTC (Response Time Compensation) technologies. When MVA panels are viewed off-perpendicular, colors will shift, but much less than for TN panels. There are several ""next-generation"" technologies based on MVA, including AU Optronics' P-MVA and A-MVA. Analysts predicted that MVA would dominate the mainstream market, but the less expensive and slightly faster TN overtook it. The pixel response times of MVAs rise dramatically with small changes in brightness. Less expensive MVA panels can use dithering and FRC (Frame Rate Control).

The gamma setting can’t be adjusted as 2.3, because it’s the default setting as 2.2, 2.4, 2.6..

EW2430 supports the Full HD -1920(H) x 1080(V) resolution with DPMS (Display Power Management System) and Senseye function. The monitor supports maximum resolution up to 1920x1080 with VGA input, and 1920x1080(1080P) with digital、HDMI(Digital) inputs , 1080P with HDMI(Video).

"It might be because the Graphic card (display card) has different setting for digital & Analog input. The user may try to upgrade the latest graphic card driver and adjust the brightness or contrast setting of the Graphic card."

P stands for “preset mode” and is the preferred setting. NP is ""Non Preset"" mode that the monitor supports and image can be displayed. FS: Fail Save Mode. The image can still be displayed but may not be able to displayed correctly because it’s out of range. ""Out of Range"" will be shown. O: Out of Range. The monitor does not support, and no picture would be shown. Therefore, the resolution with P is the preferred setting.

DisplayPort is a digital display interface standard produced by the Video Electronics Standards Association (VESA). The specification defines a royalty-free digital interconnect for audio and video. The interface is primarily used to connect a video source to a display device such as a computer monitor or television set. The first version 1.0 was approved by VESA on May 3, 2006. Two updated revisions have since been approved starting with 1.1a on April 2, 2007 followed by the current standard 1.2 on December 22, 2009. DisplayPort is designed to replace Digital Visual Interface (DVI) and Video Graphics Array (VGA), as well as replace internal digital LVDS links in computer monitor panels and TV panels. DisplayPort can also provide the same functionality as HDMI but is not expected to displace HDMI in high-definition consumer electronics devices. Most of the DisplayPort supporters are computer companies including Apple, Dell, HP, Lenovo, Fujitsu, Toshiba and Acer, some of which have released several computer monitors that support DisplayPort and some also with HDMI. In December 2010 it was announced that several computer vendors and display makers including Intel, AMD, Dell, Lenovo, Samsung and LG would stop using LVDS from 2013 and legacy DVI and VGA connectors from 2015, replacing them with DisplayPort and HDMI. Likewise, HP expects that DisplayPort will completely displace VGA and DVI by 2013. However, many are still using those connectors, so it doesn't seem to have much effect right now. Most laptops still have HDMI and legacy VGA ports, but not DisplayPort or DVI. In 2010, BenQ launched BL2201PT, BL2201PU, BL2400PT & BL2400PU that support DP 1.1a.