Hitachi P42TP01 HD Ready Plasma TV with Freeview
October 9, 2008
Hitachi P42TP01 Plasma TV is designed with HD Ready features with HDMI interfaces. It also features Picture and Picture (PAP) and Picture and Text (PAT). The viewing experience is enriched with the latest plasma technology. Teletext feature in this model has a 2000 page capacity. This TV comes with a built-in table top stand that has a swivel orientation. It comes with a digital tuner and an Electronic Programmable Guide (EPG) as well.
Display and other Features
Hitachi P42TP01 Plasma TV comes with a screen brightness of 1500candela/m². The contrast ratio of this model is 10000:1. Higher the contrast ratio, better the clarity and quality of the image. The screen size of this model plasma TV is 42” diagonally. The resolution of this model is explained by 1024 x 1080 pixels. A Progressive scan feature of much hype, scans each line to produce brighter and sharper images. The viewer can watch programmes on a widescreen format here, with its image aspect ratio of 16:9. Some of the most distinguished features of this plasma TV are on-screen menu, parental control, JPEG photo playback and screen saver. This plasma TV measures 107cm (W) x 10.2cm (D) x 71.3 cm (H) and weighs 32Kg without stand and speakers.
Power
Power supply in Hitachi P42TP01 HD Ready Plasma TV is internal and it requires a voltage of AC 230V and a frequency of 50/60 Hz. When the TV is in use, it consumes a power of 310W and when in stand by or sleep mode, it consumes power of 0.8W.
Video Features
Digital TV service such as Freeview helps you get access to about 500 channels. Hitachi P42TP01 Freeview Plasma TV is a HD Ready TV that is built to display high definition images. Teletext is a digital service on Freeview from where you can get latest news on sports, entertainment, financial services and lot more. Teletext has a memory of 2000 pages. It comes with a Digital Electronic Programme Guide.
Audio System
There are two built in speakers that produce stereo sound output. The total output power of these speakers is 20W. Various audio control are treble, balance and bass.
Concepts of High Definition Television (HDTV)
October 8, 2008
What is High Definition Television?
A high definition television is a digital television broadcasting system that come with higher resolution compared to the traditional television systems. High Definition Television broadcasts signals digitally, and hence require less bandwidth if the video compression used is sufficient. The term high definition was once used for a series of television systems that were introduced in the year 1930s and 1940s. A HDTV compatible television does not improve the quality of the Standard Definition Television.
LCD TV manufacturers adopt the 16:9 aspect ratio that is compatible for HD Ready 1080p video standard, due to the increasing scale of manufacturing yield and the resolution of the VRAM and VGA that is 768 pixel format. HDTV display images in higher details than the DVD or analog television as it comes with double the linear resolution of SDTV(Standard Definition Television). A high resolution requires higher bandwidth to be transmitted in correct form.
A television or a radio receives signals through various media such as a satellite, cable or air medium and this signal is converted to the form the device is capable of displaying. This is made possible with the digital tuners. A tuner is a device that configures a device, no matter if it is an electronic device, mechanical device or a musical device. Tuners convert low frequency radio frequency signals to a form that is supported by the device. A tuner is also capable of receiving digital broadcasts through the satellite or any other medium and displaying it on the standard definition television or high definition television sets.
Sources of HD Signal Broadcast
HDTV require High Definition signals to display superior quality images. High Definition signals are broadcast by various sources such as:
1.Some internet connections such as Apple TV can broadcast HD signal for video games like Playstation 3 and Xbox 360. Some other services also offer movie trailers, HD movies, clips to download and more.
2.Satellite based TV companies such as Freesat and Sky digital offer HDTV. To receive HD content new satellite dish and New satellite receiver box are required.
3.Blu-ray disc can store up to 10 hours of HD video content based on the encoder settings.
4.HD signals are broadcast over the air and hence can be captured by the antenna. An HD tuner is required to receive this signal. Some HDTV models come with built-in HD tuner and other that do not have this facility would require a HD tuner box, which can be rented from a satellite company or a cable company.
5.Some computer graphics card either have DVI or HDMI interfaces to display images or video to an HDTV.
6.Some DVD-R disc provide 20 to 40 minutes of HD video content.
Parameters of HDTV
Three major parameters of HDTV broadcast systems are Scanning system, Frame rate and Frame size. Scanning system is identified with the letter ‘i’ for interlaced scanning and ‘p’ for progressive scanning. Frame rate is defined as the number of video frames that are produced per second. Frame size is defined as the number of pixels that are formed both horizontally and vertically. For example, 1920 x 1080. Whenever these parameters are used, it may be specified in the form as frame size scanning system frame rate. Frame rate can also specified without a resolution. In the case of a resolution, both the transmitted signal and the native resolution of the TV is considered. HDTV sets upconvert or upscale the transmitted signal to the native format. The video format resolution of high definition display is usually of 720 horizontal lines. The native resolution of HD Ready TV is 1366 x 768 pixels.
Advantages
Images that are formed in HDTV are of better quality as it has more number of lines of resolution. As the gaps between the scan lines are narrower, the images produced are more sharper. Sound track of HDTV video signal is Dolby Digital 5.1 surround sound that produces excellent surround sound capability.
Disadvantages
The best quality of HDTV is not achieved as the operators do not follow HDTV specification properly. They use lower resolutions and broadcast more channels with limited bandwidth. This reduces the quality of the video that is broadcast. Inappropriate cabling is also a factor that puts down the quality of the image. HDMI cables are more expensive than the component cables but provide best picture and sound quality. Though HDTV has some disadvantages one must consider its plus points and deal with this concept accordingly.
Pioneer KURO PDP-LX6090 HD Ready Plasma TV with Freeview
October 7, 2008
Pioneer KURO PDP-LX6090 Plasma TV comes with enclosure that looks perfectly black. KURO in Japanese means ‘the perfect black’. This TV comes with built-in digital TV tuner and Freeview technology. With Freeview feature, you can tune in to different freeview channels and radio stations. The screen size of this model is 60 inches. HD Ready is another important feature that is capable of displaying high definition pictures. This is also HDTV compatible meaning that it can receive HD signals and display the same. The resolution of this TV is 1920 x 1080 pixels. Resolution refers to the total number of pixels that are produced in both horizontal and vertical dimensions. The image aspect ratio is 16:9.
Features such as Video noise reduction, JPEG photo playback, on-screen menu, i-CLEAR Drive, room light sensor(RLS), HD Digital Film Direct 24 and Active DRE(Dynamic Range Expander) come with Pioneer KURO PDP-LX6090 Plasma TV. Digital Noise Reduction is another feature where the noise in each image is identified by the system and is eliminated. The frequency of Pioneer KURO PDP-LX6090 HD Ready Plasma TV is 60Hz, which means the picture is updated 60 times to produce sharper image. This model comes with two speakers that has a total output power of 36W. The supported sound formats in this model are SRS WOW HD, SRS Surround and SRS TruBass. It comes with infra red remote control. Power supply is of internal type and it requires a voltage of AC230V and a frequency of 50/60 Hz. Power consumed while in use is 510W and in standby or sleep mode is 0.4W. The dimension of this model plasma TV are 87.6cm (H) x 146.5cm (W) x 9.3cm (D) and weighs 50.8Kg.
Connections in Pioneer PDPLX6090 Full HD Plasma TV are 1 x composite inputs, 3 x HDMI input, 3 x SCART, 1 x USB and 1 x VGA. It comes with sub-woofer terminal too. Other important features of plasma TV are progressive scan, Picture in Picture and Digital Noise Reduction.
Panasonic TH42PZ85B Full HD Plasma TV
October 6, 2008
Panasonic TH42PZ85B Plasma TV is unique in its own way as it is built with the Intelligent Frame Creation and 24p Real Cinema Technology. Intelligent Frame Creation increases the refresh rates on the screen. Increased refresh rates does not allow flickers to appear to the naked eye. You can enjoy this feature on a widescreen that comes with a screen resolution of 1920 x 1080 pixels. It comes with integrated tuners and DVB digital tuners. The screen size of this model is 42 inches with the screen aspect ratio of 16:9. With this aspect ratio, the user can watch programmes with widescreen effect. Moving pictures with high resolution can be achieved with the Intelligent Frame Creation with 50Hz video signal input. Natural frame to frame transitions are formed for displaying smooth motion images that have high resolution. The contrast ratio of this model is 30000:1. Two speakers that come with this model plasma TV produce surround sound with a total output power of 2×10W.
Other important features available in Panasonic TH42PZ85B HDMI Plasma TV are parental control and sleep timer. With the parental control, this TV can be protected from misuse of the children. Sleep timer can be set to turn the TV off at the set time. This product model measures 67.4 cm (H) x 106.4 cm (W) x 9.2 cm (D) and weighs 29.96 kg.
Design
The style of the design is rather distinct from other models with its glossy black finish with silver colour beneath the panel that contains a pair of speakers. Towards the back of the TV you can see five cooling fans just near the top of the panel. Though the fans produce some noise, it is compensated with the normal TV sound when the viewer seats himself at a distance of 6 feet away from the TV. You can also find few hand grips at the bottom of the panel for lift the TV with ease. Panasonic TH42PZ85B Plasma TV has a distinguished style of finish that makes it different from others. It comes with a pedestal stand that can be assembled to the TV.
Connections
You can find three HDMI inputs at the back of Panasonic TH42PZ85B Plasma Television and also on the left side of the compartment that can be accessed well. If a device is plugged in to the HDMI port, it automatically switches the source every time the TV is switched on and off.
Panasonic TH50PZ81B 50” Full HD Plasma TV with Freesat
October 5, 2008
Panasonic TH50PZ81B Plasma TV is a HD Ready TV that has a screen resolution of 1920 x 1080 pixels. It is designed with loudspeakers and built-in satellite. The contrast ratio of this model is 30000:1. It refers to the ratio of the darkest black and the brightest white. It comes with an integrated tuner apart from a DVB digital tuner. Also, this device is HDTV compatible.
Display
Panasonic TH50PZ81B HD Ready Plasma TV comes with a screen size of 50 inches. The screen aspect ratio of this model is 16:9. The response time of 0.001ms is the time taken by the TV to respond to the given input. The viewing angle is free and hence you can comfortably view programmes from any angle. It also features progressive scan, thereby scanning each line to produce brighter pictures or images. The resolution of this plasma TV is 2,073,600 (1,920 x 1,080) pixels. Clarity of the images depend upon the resolution, which refers to the number of pixels that are produced in both horizontal and vertical angles. Higher the number of pixels, brighter will be the images.
Sound
There are two speakers available with this plasma TV producing a total output power of 20W. It comes with music and speech sound modes.
Terminals
Various terminals that are attached to this television are; SD Memory Card Slot, Common Interface, LAN Port, HDMI Input, HDMI Input 1080p, Composite Video Input, Audio Input (for Video), PC Input , S-Video Input, Component Video Input, Digital Audio Output, Audio Output and Monitor Out.
Features
Panasonic TH50PZ81B HDMI Plasma TV features a child lock, Picture in Picture, Video Noise Reduction and a comb Filter too. It requires a voltage between AC 220 - 240 V and a frequency of 50/60Hz. Panasonic TH50PZ81B Plasma TV can be mounted on the desktop or can be placed on the wall for a comfortable viewing. It comes with a basic remote control and a headphone jack. This model comes with one year warranty. Without stand, it measures 1244.0mm (W) x 790.0mm (H) x 110.0mm (D) in dimensions and weighs 38.0Kg.
