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Editor's HDTV Pick

HP 47 inch MediaSmart 1080p LCD HDTV "Out of the box" digital media platform. Enjoy videos, pictures and music from home network + digital media delivered over your broadband Internet connection + 3 x HDMI

Philips VIDI is an enabling lamp technology for both micro and front projection equipment. VIDI is referred to as an enabling technology as it resides in the lamp electronics. It offers increased brightness and enhanced contrast for significant improvement of picture quality for end users.

VIDI electronics turn the light from a projection lamp into a two pulse system; a brilliant pulse and dark pulse. The dark pulse enables enables enhance contrast delivering smoother more vivid pictures. On the other hand, the brilliant pulse boosts projection bulb brightness by up to 25% to 30% putting more lumens of brightness on the projection screen.

Philips expect VIDI technology to allow projector manufacturers to provide consumers with the flexibility to tune their projector for multiple applications eg. data vs. video projection. Philips have worked in close cooperation with Texas Instruments for combining VIDI with TI’s BrilliantColor technology.

Philips rear projection TV technology is often overlooked by consumers but, has the same features such as DLP by Texas Instruments that more popular brand televisions have.

There are two 50 inch Philips RPTV models, the 50PL9220D/37, 60PL9220D/37 and 50PL9200D/37, with the only difference, apart from physical dimensions, being the audio L/R out on the rear of the 50PL9200D/37 and its Silver Frost casing compared to the other models.
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LG.Philips LCD has announced the development of the first full-color, flexible, active matrix, organic light emitting diode (AMOLED) display that uses amorphous silicon (a-Si) technology. It was developed in cooperation with Universal Display Corporation of the U. S. which holds the original patents for Phosphorescent OLED (PHOLED) technology.

The AMOLED QVGA (320 x 240) resolution display can reproduce 16.77 million colors. The stunning feature of the display is its ultra thin, just thicker than a human hair, 150 μm. The display has a stainless steel foil substrate to ensure durability and provide heat insulation. (read more..)

Its something many e-paper developers have been striving for – color e-paper. LG. Philips LCD have announced today, May 13 2007, that they have developed an A4 size (14.1 inch) flexible color E-paper display. The A4 display uses electronic ink technology from E-Ink Cxorp.

A gamut of 4,096 colors can be reproduced and the display can be viewed from a full 180 degrees. LG.Philips LCD use a metal foil on a plastic substrate to produce a flexible display. According to LG. Philips LCD, the displays are extremely energy efficient and extremely thin (300 micrometers) with a display quality that rivals a printed page.

Many flat screen television manufacturers have been using advanced audio technology such as that supplied by SRS Labs to provide a richer immersive audio experience with only two speakers. Rather then go this route Philips through Philips

Applied Technologies has invested in their own “SonoWave” technology for creating the illusion of a surround sound system with only two speakers.SonoWave has been developed as the new HTS6510 DVD Home Theatre System for delivering 5.1 channel audio through two speakers. It has also been licensed to OEM partner equipment manufacturer, Yamaha and is being marketed as “Air Technology”.

How SonoWave Works

Like a 5.1 audio system a SonoWave Home Theater System has five amplifiers. However, it uses only two front speakers - each with three drivers. For those not able to carry out a neater permanent installation and not wanting speakers and trailing wires scattered around the room, this may be an attractive option.

As with a conventional 5.1 home theater system, center channels and front channels are fed to drivers pointing directly at the listener, providing direct sound. Surround channels are fed to the outer drivers which are at an angle pointing them away from the listener aiming for the perception of only indirect and diffused sound.

To avoid mixing of front and surround sound beams the SonoWave system uses array processing techniques to control the sound coming from the speakers and cut “notches” in the speakers sound beams. A notch is an area where the level of direct sound from the speaker is very low.

Using only the three drivers, a notch is created in the surround sound channel beams projected towards the listener, who then only hears the diffused sound field induced in the room. As a direct result, the surround channels embrace the listener. In the front channel, a notch is created in the beams projected towards the side of the room, whilst the listener hears the direct sound from the loudspeaker array. This arrangement avoids mixing of front and surround sound channels creating a sound field like that provided by a 5.1 surround sound system. (read more..)

Sharp Aquos and LG.Philips LCD Televisions both utilize 3M’s Vikuiti Display Enhancement Films to achieve greater display brightness.

Vikuiti is a 3M brand covering its innovative line of optical technologies. When incorporated into LCD TVs, Vikuiti optical display enhancement films increase brightness, reduce glare and improve durability of the screen. The films can also be used to repair slight surface scratches.

How Enhancement Films Work

The majority of the backlight passing through a liquid crystal display is absorbed before reaching the viewer. Typically only 8 to 10% of an LCD displays backlight output makes it through the LCD displays layers. Half (50%) is lost passing through the polarizer and a further 34% through the color filters.

Vikuiti Dual Brightness Enhancement Films MF1-650 (DBEF/MF1-650) and D550 (DBEF-D550) were developed specifically for application in LCD-TVs. The Vikuiti enhancement display technology recycles light to achieve greater brightness. The Vikuiti films can have hundreds of reflective layers in a sheet less than 1 millimeter thick. Light performace is also improved by optimizing the angle of light toward the viewer (rather than having it dispersed and wasted).

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The Society for Information Display’s (SID) 2006 International Exhibition was the forum LG. Philips chose to launch the world’s largest 100-inch LCD panel beating the largest currently available LCD panel by a factor of 1.5 and matching similar size plasma panels currently available.

The 100-inch panel features;

• wide screen (16:9) format,
• a screen response speed below 5ms,
• 6.22 million-pixels, full HD grade picture quality,
• capability to reproduce 1.07 billion colors,
• a maximum contrast ratio of 3000:1,
• color reproduction of 92 percent,
• an omni-directional, 180-degree viewing angle (based on Super IPS and super-large compensation film technologies).

The panel is based on LG.Philips LCD’s proprietary copper-based interconnect technology. This technology, announced in 2002, enables transmission of video signals across an entire large-area LCD screen without noise enabling the creation of sharp images with virtually no distortion or display jitter. The technology is based on using copper wires in thin film transistors (TFTs), which transmit the electrical charges. Copper has low electrical resistance for example, 60 percent less than aluminium alloy and 92 percent less than chromium.

For their new 42PF9831D 42in LCD Philips have tackled two common limitations of LCD screens, motion blur and black level performance using ClearLCD technology.

ClearLCD is a technology developed to address two limitations common to LCD – motion blur and black level performance. ClearLCD uses Overdrive Control and Dimmable, Scanning Backlight technologies to tackle motion blur. Overdrive Control increases the voltage to boost the liquid crystals reaction rate thus lowering the response time. Philips’ backlighting technology utilizes ‘hot cathode’ fluorescent lamps which similar to CRT screens allowing pixels to be lit progressively for a far shorter time improving motion sharpness. Deeper black levels and higher contrast are gained through hot cathode lamps ability to dim 30% more than conventional LCD lamps.

The 42PF9831 also features other technologies:

• AmbiLight Surround – fluorescent bulbs shine colored light matching the dominant screen colors from every side of the TV screen.
• Pixel Plus 3 HD – the latest version of Philips’ Pixel Plus system giving a 75Hz refresh rate to remove image flicker
• An MPEG Artifact Meter that adjusts the level of processing required depending on the quality of the incoming signal.