Is UHD really 4K?

Resolutions

With any new technology, the terminology can be baffling. And resolution terminology can be the most confusing of all!

Resolution is simply the number of pixels in an image. The higher the number of pixels, the greater the resolution and the better the image quality will be.

 

Resolutions are as follows:

  • UHD 4K (3840 x 2160) pixels
  • WUXGA (1920×1200) pixels
  • Full HD 1080p (1920 x 1080) pixels
  • WXGA / HD Ready (1280 x 800) pixels
  • XGA (1024 x 768) pixels

 

Optoma 4K Ultra High Definition (UHD) projectors provide four times as many pixels as Full HD 1080p. That’s 8.3 million on screen pixels (3840 x 2160) bringing greater realism to every scene with increased depth and light and shadow detail for a truly immersive experience.

They use a 4M pixel chip but Optoma UHD 4K projectors do not pixel shift in the same way as the 3LCD ‘4K enhanced’ projectors from Epson and JVC.

To get your head around this, let me give a simple overview of how each technology works.

A projector using 3LCD technology splits the white light from its lamp into three colour beams and directs each to their own LCD panel to create the image to be projected.

At the heart of every Optoma projector is a DLP® chip. Developed by Texas Instruments, this chip has millions of microscopic mirrors, each measuring less than one-fifth the width of a human hair and each corresponding to one pixel on the final projected image. A spinning colour wheel made up of coloured segments is placed between the light source and the chip. The mirrors are then turned on and off perfectly in time with the right colour – allowing the projector to display a total of 16.7 million different colours for a fantastically vibrant, life-like picture. By using mirrors rather than LCD panels, DLP projectors are shown to have better pixel alignment and therefore show a sharper image.

DLP chip

Optoma’s 4K UHD projectors use a chip with over four million mirrors and deliver two discrete pixels for each mirror. The inherent fast switching speed of the DLP chip and Texas Instruments’ latest XPR™ technology allow the projectors to display the full 8.3M pixels to the screen from this 4M pixel chip. This happens so fast that the eye blends them into one image.

The ‘4K-enhanced’ 3LCD projectors from Epson and JVC use native HD 1080p chips (1920x1080). To achieve ‘4K-enhanced’ they project a 1920x1080 image, then on the next refresh of the chips a second 1920x1080 image is off-shifted diagonally and overlaid onto the first. The total number of addressable pixels in this process is 2x (1920x1080) = 4.15 million - half of the 8.3 million in a native 4K signal.

The Consumer Technology Association (CTA) defines 4K UHD resolution as 3840 x 2160 or greater than 8 million addressable pixels. For projection systems, 4K and 4K UHD resolution should be defined by the on-screen counting of pixels or the ability to see greater than 8 million dots.

With the full 8.3 million on-screen pixels, Optoma’s 4K UHD projectors meet the Consumer Technology Association (CTA) requirements for 4K UHD and CTA High Dynamic Range (HDR) compatible display standards.

Among the smallest 4K projectors on the market, Optoma’s 4K UHD projectors set a new benchmark in performance.

 

The pros and cons of a projector over TV

A projector can give you amazing gaming experience and a true cinema-like feel at home – but what are the pros and cons of choosing one over a big screen TV?

Pros

Size This is a major reason to go projection! Actors on TV look larger than life. Hang on a second – they ARE larger than life. Filling your entire field of view creates a completely absorbing experience.

Viewing a standard TV of 37 inches from the average sofa distance of nine feet, your eyes just cannot see all the detail in a 1080p image. Blow that up four times to 100 inches and you can see each strand of hair, every blade of grass. And this is where the benefit of 4K comes into play. A larger image benefits greatly from the added resolution. At that distance most people will see pixels on a 150-inch 1080p image, but not with 4K.

As seen on the graph below, at nine feet from the screen anything bigger than a 65” image will look better with 4K. Optoma projectors can produce images up to 300 inches.

 

 

Easier on the eyes You may think having such a large screen may hurt your eyes. Actually, it's the opposite. Filling a larger percentage of your visual field, and with less overall brightness, a big screen is actually more comfortable to watch and, just like in the cinema, the picture is also more immersive.

Space and setup Projectors can be used anywhere there is a power source, a flat surface and enough space. They are light and portable to be taken around to a friend’s house for a gaming session or an outdoor film night. A TV is less flexible to pop under your arm and take to your mates!

 Projectors can be ceiling mounted or simply placed on a table or shelf – and you don’t have to have a screen. You can project straight onto a plain wall. If you do want a screen - these come in all shapes and sizes. They can hang on the wall or be retractable, where the screen disappears into the ceiling or you can get a portable one that you simply pull up.

Short throw and ultra short projectors are ideal for gamers as these create a large image from very close to the screen or wall. Gamers are therefore behind the projector ensuring no shadows are cast across the image.

Cost

Projectors are, on the whole, cheaper than comparably sized Full HD TVs. Getting a TV larger than 100 inches currently costs around £30,000 (if you can find one to buy). Getting the same screen size and equivalent picture quality could cost as little as £500 with a projector.

Audio

Most home projectors have a built-in speaker – perfect to plug and play. And if you want to connect to an external sound system, you can with the audio output. 

Wireless connectivity

Optoma projectors can also work wirelessly up to HD quality using the optional WHD200.

 

Cons

Light

Light can be a problem if the screen or wall is subject to direct sunlight. But Optoma’s bright home entertainment projectors are designed to be used with the lights on. And the darker the room, the more vibrant the image will be. 

Lamps

Nearly all home projectors are lamp-based. Like any lamp-based light, these will eventually need replacing. How often will depend on how much use the projector has had and putting the lamp in Eco mode will greatly increase the lifespan of the light source from 5,000 to 8,000 hours*. Based on a 20 hours a week that equates to around 5-8 year’s use. 

Expectations

After getting a projector all your friends' TVs will seem unbearably small.

 

Upsize that tiny TV; go projection!

A projector doesn't have to cost a lot of money, nor is it difficult to set up.  Interested? Read our blog on choosing the best projector for you

 

 

* Figures based on expected lifespan of the HD142X lamp

Why Amazing Colour creates vibrant, long-lasting and accurate colours

 

Optoma announced this week the integration of Amazing Colour technology into its latest projectors. The combination of advanced colour technology and multiple settings in all Optoma projectors, from entry level to high resolution, creates precise, true-to-life colours which do not fade.  

Outstanding colour precision
Optoma projectors deliver accurate sRGB/ Rec. 709 colours for true-to-life visuals. This provides precise detailed images with more realistic and natural looking colours. Perfect for business presentations, education, films and photography - where detail really matters.

Tailored visual experience
Equipped with multiple display modes, Optoma projectors give users the freedom to choose the best setting for the content. Each mode has been fine-tuned by Optoma’s colour expert team to ensure superior colour performance.

Superior detail
Optoma projectors deliver high ANSI contrast. This means the projector is far superior at differentiating between dark and light content within the same image - providing crisp, intense and saturated colours.

Colour guarantee
Optoma guarantees colour will never fade on its projectors so users can enjoy consistent colour performance for years to come.

Multi-colour processing technology
DLP® BrilliantColor™ technology raises the bar in colour performance and picture quality. This multi-colour processing technology provides a wider colour gamut, making it possible to produce over one billion colours. It supports the continuous processing of RGB (red, green, blue) colours along with yellow, cyan, and magenta. This gives realistic colour reproduction, particularly evident in skin tones.

Amazing Colour technology offers better colour performance to match any application or environment – whether for business, education or home entertainment. For more information on Optoma Amazing Colour technology, visit: www.optoma.co.uk/Amazing_Colours and watch the Amazing Colours video

ISE 2016: OUR BEST BITS IN A NUTSHELL

We’re back from ISE. Thanks to everyone that came to see us during the four-day show. For those that missed the event, we thought we’d do a round-up of the best bits.

 World’s first 4K LED HLD was the star of the show

People were fascinated by the world’s first 4K LED HLD projector on our stand – not just because they could see all the components that make up a projector through the clear casing (which was really rather cool) – but because the colours in the projected image were pretty spectacular.

 This demonstration, produced in partnership with Texas Instruments and Phillips, showed the colour performance and accuracy that is produced from DLP projectors. It is no wonder that 80% of cinemas throughout the world use DLP projectors because of their image quality and colour accuracy!

Our second 4K demo showed a prototype ultra-high definition (UHD) display using the single-chip DLP design. This delivers more than eight million pixels to the screen with the millions of mirrors in the DLP chip capable of switching over 9,000 times per second. Impressive stuff!

PureTech Racing simulator was a blast!

The F1 full motion racing simulator from PureTech Racing proved to be a real crowd-puller. It combined ultra-realistic motion generation with a seamless curved display projected from three ultra mobile LED ML750e projectors.

Loads of visitors (including Optoma’s own James Fitzgerald) spun off unable to complete a full lap where others mastered the corners and chicanes and shrugged off the G force to put in very respectable lap times. 1st prize each day was a pair of Optoma NuForce BE6 wireless Bluetooth earphones, 2nd prize NE800M earphones and 3rd prize NE750M earphones. Winners* were:

Tuesday 9 February

1st Taco van Sambeek (1:10.276)

2nd Günter Lemberger (1:10.554)

3rd Dario Stancich (1:13. 824).

Wednesday 10 February

1st Dario Stancich (1:07.138)

2nd Liudas Vastakas (1:07.306)

3rd Matthew George Wilson-Taylor (1:09.676)

Thursday 11 February

1st Alex Germanis (1:08.060)

2nd Giuseppe Ferrarelli (1:09.438)

3rd Andika Pratama (1:10.102)

Friday 12 February

1st Dario Stancich (1:07.852)

2nd Lorenzo Savadori (1:09.374)

3rd Kasper Rasmussen (1:10.628)

 

Projectors going where flat screens couldn’t possibly follow!

There were loads of great ideas for retailers to create eye-catching displays.

Dynamic Projection Institute’s Mirror Head took the imagery from Optoma’s new ProScene ZU650 laser-phosphor projector and swooped it around visitors’ feet - grabbing their attention and literally stopping them in their tracks.

Super-size digital signage was created from two stacked 12,000 lumen projectors to create a 24,000-lumen ultra-bright 5 x 3.5 metre display that would be capable of continuous 24/7 operation. You’d never get a flat panel that size around a corner!

But it was the daylight-visible window displays and interactive product showcases that really captured people’s imaginations. Projection Artworks, the UK’s leading pioneer in projection-based retail solutions, showed off its Display Mapper software that applies animated content onto and around products - proven to generate greater engagement and sales to the shop floor. Virtual popcorn spilled out and down the stand and a watch came alive with geometric lines marching across its face.

Now, you can’t do any of that with an LCD flat screen!

Chilling out in the home zone

Visitors took a much-needed rest on our comfy sofas to watch live demonstrations of the ultra short throw projector, the GT5500 and the award-winning HD28DSE projector, which is engineered with DARBEE Visual Presence™ technology.

In this home zone they could also see Optoma’s expanded range of NuForce audio products including a new super-small DSD DAC and headphone amp - the uDAC5 – which was unveiled on Monday.

Please DO touch the exhibits!

People were invited to have a play with the finger touch interactive displays in the corporate and education area of the stand. At one point there were more than 20 people at the board writing their names, drawing cartoons and happily doodling.

The ultra-wide imagery came from Optoma’s new ultra-short throw laser-phosphor ZH300UW projector. Using a solid-state laser-phosphor light engine instead of traditional projector lamps, produces a brightness of 3,000 lumens and eliminates the need for any replacement lamps.

ISE 2016 took place 9-12 February at the RAI Exhibition Centre in Amsterdam. Optoma’s partners include:

BRD Simulation Racing Technology/ PureTech Racing. BRD is well known within the motorsport industry for the credibility of its award winning simulator technology. For more than 20 years it has researched, designed developed and produced a constantly evolving range of motorsport simulation tools for the motorsport industry and advanced simulator racing centres. www.puretechracing.com

Dynamic Projection Institute develops innovative media technology for architecture, design, fashion and arts. Its key products are the Mirror Head and the MDC, Media on Demand Control, Media Console. www.dynamicprojection.com

Projection Artworks is the UK’s leading pioneer in projection-based retail solutions. With more than ten years’ experience in projections both large and small, it specialises in daylight-visible window displays, interactive product showcases and innovative POS concepts. www.projectionartworks.com

Texas Instruments is a global semiconductor design and manufacturing company. It pioneered DLP® technology, which is used in all Optoma projectors. This uses millions of mirrors to produce high quality imagery which does not suffer colour degradation over time, as sometimes experienced in other projector technologies. www.ti.com/dlp

Philips integrates technologies and design into people-centric solutions, based on fundamental customer insights and the brand promise of “sense and simplicity.” Philips ColorSpark HLD LED projection system lets you see everything on the screen in sharp definition and clear colours. Its new technology emits four times the light of current LED technology, making the screen up to three times brighter while still keeping brilliant colour performance. www.philips.com/newscenter

 * Drivers with more than one top three time during ISE won one prize only.

How to create an amazing Christmas display

Are you dreading the annual tussle with the tangled ball of Christmas lights?  We are too!  So we have put together some suggestions on how to create a stunning seasonal spectacle with a twist.

Project decorations straight onto your house

If you have a shed or a friendly neighbour opposite, you could project your Christmas lights straight onto your house.  This avoids battling with blown bulbs and just needs a bright projector, images or animations to project onto the house and somewhere secure under cover where you can place the projector.  Your house would be the envy of the neighbourhood!

Richard Ayoade, showed how to do this in the Gadget Man Guide to Christmas when decorations and animations were projected directly onto the Gadget Man house. 

 

Project onto your windows

Line your windows with tracing paper, a frosted shower curtain, a thin cotton sheet or frosted film and you have a screen to project your decorations.  This could be a Christmas tree, a festive greeting to your neighbours or Santa in his sleigh.

Software design company, Reason, wanted to create a Christmas display on their windows which could be seen by people passing their offices in Spitalfields, London.  It showed Santa skimming over the rooftops on his sleigh.

 

Don’t get the needle

If you are fed up schlepping the tree in from the garden centre (or loft) and spending hours arranging baubles – why not project your tree?  All you need is a plain wall and an image of a tree to project.  You could make decorations and place these strategically on the wall or have a pre-decorated perfect tree as your projected image.