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DHB Series High Brightness LED Screen: 10,000 nits for Direct Sunlight

  • Thread starter Thread starter Daniel Reynolds
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Daniel Reynolds

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DHB Series at a glance: Dynamo High Bright, a 10,000-nit high brightness LED screen for permanent outdoor installation. Seven pixel pitches from 4 mm to 10 mm: P4, P4.4, P5, P5.7, P6.67, P8 and P10. 960 × 960 × 75 mm aluminium cabinets at 23 kg, serviced from the front with the supplied tool or from the rear where there is access, IP67 front and IP68 rear, 7,680 Hz refresh. Built fixed, curved, cornered or foot-mounted, and installed nationwide by Dynamo’s own engineers.

What is a high brightness LED screen?​


A high brightness LED screen, also called a high bright LED display, is an outdoor LED display with enough light output to stay legible in direct sunlight. Standard outdoor LED screens are rated at around 5,000 to 6,500 nits. High brightness models such as the DHB Series are rated at 10,000 nits, for south-facing, roadside and high-level sites.

The DHB Series is Dynamo’s high brightness LED screen for permanent installations. It suits roadside signs, building facades, car park and retail park entrances and stadium exteriors. Every screen comes with a Dynamo LED controller, the free Dynamo CMS and a 3-year return-to-base warranty. It sits alongside the DVO Series in our outdoor LED display range, on the same 960 mm cabinet grid. Choose the DHB Series where brightness, cabinet depth, a finer pitch, front and rear service or a curved build decide the job.


Brochure: Download the DHB Series brochure (PDF, 4.5 MB). Six spreads cover the cabinet, the formats, installation, the full specification and what a Dynamo supply includes.


DHB Series high brightness LED screen on a foot-mounted roadside frame (render)


How many nits does an outdoor LED screen need?​


In the UK, a standard outdoor LED screen of 5,000 to 6,500 nits is enough where the screen is shaded or faces north. Plan on 10,000 nits where the sun lands on the LED face for much of the day. That means south- and west-facing walls, roadside signs read against a bright sky, high-level facades and screens beside glass or pale cladding. Indoor LED screens need far less, typically 600 to 1,200 nits.

Indoor LED screen600 to 1,200 nitsLobbies, retail interiors and meeting rooms under controlled lighting
Indoor high brightness LED screen (window-facing)3,000 to 4,500 nitsShop windows and glazed shopfronts where the screen faces the street and competes with daylight through the glass; see the DX HB Series and our LED window displays
Standard outdoor LED screen5,000 to 6,500 nitsShaded, covered or north-facing outdoor positions
DHB Series high brightness LED screen10,000 nits (all seven pitches)Direct sunlight: south- and west-facing, roadside, high-level and open sites
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Setting​
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Typical rated brightness​
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What it is for​
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Rated brightness is the peak the screen can reach, not the level it runs at. A 10,000-nit screen in the UK spends most of its hours well below maximum, lifted on bright afternoons and dimmed at dusk. That headroom keeps low-contrast content readable at the brightest time of day. Running below peak is also easier on the LEDs over the life of the screen. The 7,680 Hz refresh rate reduces the banding seen when a screen is filmed on a phone.

DHB Series high brightness LED cabinets on a curved building facade, legible in bright daylight


Photograph of an installed screen built from this cabinet series.

When you need 10,000 nits​

  • South- and west-facing elevations, with the sun on the LED face through the afternoon.
  • Roadside signs and LED billboards read against a bright sky from a moving vehicle.
  • High-level facades and gable ends with no shading from neighbouring buildings or trees.
  • Car park and retail park entrances, surrounded by pale cladding, glass and wet tarmac that reflect the sky.
  • Stadium exteriors and concourses seen across open hard-standing.
  • Coastal and open sites with no shelter from reflected light.

A shaded, north-facing or covered position usually does not need 10,000 nits, and the DVO Series is often the better fit there. Our guide to outdoor LED brightness in direct sunlight explains how to read a site. Or send us a photograph of the position and which way it faces.

Auto-dimming and night-time brightness limits​


A 10,000-nit screen should never run at 10,000 nits after dark. Every DHB Series installation is commissioned with a brightness schedule in the control system, and an ambient light sensor where the site calls for it. The sensor tracks daylight. The schedule caps the screen at an agreed level from dusk until morning, with a gradual ramp between the two.

In England and Wales an illuminated sign normally needs advertisement consent. Local authorities routinely attach a condition limiting night-time luminance, stated in candelas per square metre (the same unit as nits), with curfew hours. Screens on or near Transport for London’s road network are also assessed against TfL’s guidance for roadside digital advertising. That guidance covers brightness, transitions between adverts and driver distraction. We set the night-time cap to the condition and record the settings at commissioning. We can also supply an LED planning support statement for the application. See our guides to outdoor LED night-time dimming and cold weather LED screen performance.

Cabinet: 960 × 960 mm, 75 mm deep, 23 kg​


Each cabinet is a 960 × 960 mm aluminium frame carrying six 480 × 320 mm die-cast aluminium modules, two across and three down. At 75 mm deep and 23 kg it keeps a facade screen close to the wall line and the support steel light. The die-cast module chassis doubles as the heat path for the LEDs, which matters most on a high brightness screen. Our guide to outdoor LED thermal management explains why.

Why the 960 mm grid matters​


A DHB Series screen is always a whole number of cabinets in each direction. The size, the steelwork and the resolution are therefore predictable from the first drawing. 3,840 × 2,880 mm is a 4 × 3 grid; 5,760 × 2,880 mm is 6 × 3. Resolution follows from the pitch: 240 × 240 pixels per cabinet at 4 mm, 216 × 216 at 4.4 mm, 192 × 192 at 5 mm, 168 × 168 at 5.7 mm, 144 × 144 at 6.67 mm, 120 × 120 at 8 mm and 96 × 96 at 10 mm.

Cabinet formats​


The 960 × 960 mm cabinet is the standard unit. The same module also builds 960 × 1,280 mm, 1,440 × 960 mm and 1,440 × 640 mm cabinets, plus a 320 mm curve cabinet and a 45-degree corner cabinet. Weights for the other formats are confirmed on request. The screen is shaped to the building rather than the building to the screen.

DHB Series 960 x 960 x 75 mm aluminium LED cabinet, rear service side and LED face

Rear of the DHB Series 960 x 960 mm aluminium cabinet showing six module bays and the central power and data spine


Front and rear service​


The datasheet installation method is front service. A module is released from the face of the screen with the supplied service tool, hinged out and swapped. A screen fixed flush to a wall is therefore maintained from a cherry picker or a tower, without rear access. The cabinet is also built for rear service: where the site has a walkway or an open frame behind the screen, the modules release from the back with the same tool, and the power and data units sit in the open rear of the cabinet within reach. We agree the service side at the drawing stage, so the steelwork leaves the access the engineer will need.

DHB Series 480 x 320 mm die-cast aluminium outdoor LED module, rear with carry handle


Pixel pitch for a high brightness LED screen: P4 to P10​


The DHB Series is sold in seven pixel pitches on the same cabinet. The finer the pitch, the closer the screen can be read, and the more it costs per square metre, because every cabinet carries more LEDs. As a rule: P4 to P5.7 for close viewing at ground level, P6.67 and P8 for facades and entrances read from the street, P10 for billboards and perimeter screens read from a distance.

DHB P4​


240 × 240 pixels per cabinet, 62,500 pixels per m², best viewed from 3.9 m or more. The finest pitch in the range, for ground-level retail frontages, forecourt screens and transport hubs where people stand close to the screen.

DHB P4.4​


216 × 216 pixels per cabinet, 50,625 pixels per m², best viewed from 4.4 m or more. The same close-viewing positions as P4 at a lower cost per square metre.

DHB P5​


192 × 192 pixels per cabinet, 40,000 pixels per m², best viewed from 5 m or more. Shopfronts, forecourts and station concourses read from the pavement or from a short queue.

DHB P5.7​


168 × 168 pixels per cabinet, 30,625 pixels per m², best viewed from 6 m or more. The crossover pitch: a ground-level screen that is also read from across a forecourt, a car park or a concourse.

DHB P6.67​


144 × 144 pixels per cabinet, 22,500 pixels per m², best viewed from 6 m or more. The pitch for places where people walk or queue near the screen. Retail park entrances, stadium concourses, forecourts and facades over a pavement.

DHB P8​


120 × 120 pixels per cabinet, 15,625 pixels per m², best viewed from 8 m or more. The middle pitch, for facades and entrances read from the street and the approach road.

DHB P10​


96 × 96 pixels per cabinet, 10,000 pixels per m², best viewed from 10 m or more. The pitch for LED billboards, perimeter screens, gable ends and anything read from a moving vehicle or across a car park.

Our pixel pitch guide explains how viewing distance drives the choice, or send us the site and we will advise.

DFS: the curved DHB cabinets​


DFS is the curved variant of the DHB Series high brightness LED screen: a 640 × 960 mm curve cabinet built on a 320 mm curve module, and a 45-degree corner cabinet, both at the same 10,000 nits, 7,680 Hz, IP67 front and IP68 rear as the flat 960 × 960 mm cabinet. DFS cabinets are available at 6.67 mm, 8 mm and 10 mm, and they let a DHB screen follow a column, turn a building corner or wrap a rotunda in one continuous picture.

Where a tender, specification or bill of quantities names a Dynamo DFS-P8MM facade system, that is the DHB Series P8 built with DFS curve cabinets at the corners: flat DHB cabinets on the elevations, DFS cabinets where the screen bends. The datasheet, brochure and drawings on this page apply to both.

Typical screen sizes​


Common starting points; any other whole-cabinet size can be built. Resolutions are in pixels, derived from the cabinet grid and the module resolution at each pitch.

2,880 × 1,920 mm3 × 2 = 65.53 m²720 × 480648 × 432576 × 384504 × 336432 × 288360 × 240288 × 192
3,840 × 2,880 mm4 × 3 = 1211.06 m²960 × 720864 × 648768 × 576672 × 504576 × 432480 × 360384 × 288
5,760 × 2,880 mm6 × 3 = 1816.59 m²1,440 × 7201,296 × 6481,152 × 5761,008 × 504864 × 432720 × 360576 × 288
7,680 × 3,840 mm8 × 4 = 3229.49 m²1,920 × 9601,728 × 8641,536 × 7681,344 × 6721,152 × 576960 × 480768 × 384
9,600 × 4,800 mm10 × 5 = 5046.08 m²2,400 × 1,2002,160 × 1,0801,920 × 9601,680 × 8401,440 × 7201,200 × 600960 × 480
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Screen size (W × H)​
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Cabinets​
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Area​
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P4​
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P4.4​
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P5​
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P5.7​
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P6.67​
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P8​
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P10​
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Installation options​

Fixed​


Cabinets bolted to a steel sub-frame on a wall or elevation, serviced from the front where the screen sits flush.

Curved (DFS cabinets)​


The 320 mm curve cabinet follows a curved facade in whole-cabinet steps. Standard cabinets can also be set at an angle to one another at each joint. The angles are agreed on the drawings and built into the steel frame, so the curve is fixed rather than flexed on site.

DHB Series curved wrap-around LED installation, one screen across two elevations


Photograph of an installed screen built from this cabinet series.

Cornered​


The 45-degree cabinet turns a building corner without a gap in the picture, so one screen wraps two elevations.

DHB Series LED cabinets turning a building corner in one continuous picture


Photograph of an installed screen built from this cabinet series.

Foot-mounted​


A free-standing screen on posts for roadside, forecourt and car park positions. Posts and foundations are designed to the site’s wind load. See our guide to LED screen wind load and structural design.

DHB Series 320 mm curve cabinet with content on the LED face, for curved outdoor LED facades

DHB Series 45-degree cabinet joining two outdoor LED cabinets around a building corner, rear view

Steel foot-mounted frame for a DHB Series roadside LED display on two posts (render)


Specification​


The per-pitch figures first, then the specification shared by every pitch.

Per pitch​

DHB P4 (4 mm)SMD1921120 × 80 pixels240 × 240 pixels62,500 per m²3.9 m
DHB P4.4 (4.4 mm)SMD1415108 × 72 pixels216 × 216 pixels50,625 per m²4.4 m
DHB P5 (5 mm)SMD192196 × 64 pixels192 × 192 pixels40,000 per m²5 m
DHB P5.7 (5.7 mm)SMD272784 × 56 pixels168 × 168 pixels30,625 per m²6 m
DHB P6.67 (6.67 mm)SMD2727, Kinglight Gold72 × 48 pixels144 × 144 pixels22,500 per m²6 m
DHB P8 (8 mm)SMD3535, Kinglight Gold60 × 40 pixels120 × 120 pixels15,625 per m²8 m
DHB P10 (10 mm)SMD3535, Kinglight Gold48 × 32 pixels96 × 96 pixels10,000 per m²10 m
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LED​
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Module resolution​
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Cabinet resolution (960 × 960 mm)​
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Pixel density​
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Best viewed from​
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All pitches​

Pixel pitch4, 4.4, 5, 5.7, 6.67, 8 or 10 mm
Brightness10,000 nits; a 6,000-nit build is available where a lower output suits
Module480 × 320 mm, die-cast aluminium; six per 960 × 960 cabinet (2 across × 3 down)
Cabinet size (W × H × D)960 × 960 × 75 mm, aluminium, 23 kg
Other cabinet formats960 × 1,280 mm, 1,440 × 960 mm, 1,440 × 640 mm, 320 mm curve cabinet, 45-degree cabinet; weights on request
Refresh rate7,680 Hz
Grey scale14 to 16 bit processing
Colour temperature3,200 to 9,300 K
Viewing angle140° horizontal, 140° vertical
Power consumption, maximum550 W per m²
Power consumption, average180 W per m²
Supply100 to 240 V AC, 50/60 Hz
Ingress protectionIP67 front, IP68 rear
Operating temperature−20 to +60 °C, 10 to 80% RH
Fire ratingV0 cabinet materials
ServiceFront service with the supplied tool; rear service where there is access
InstallationFixed (wall or steel frame), curved, cornered, foot-mounted
ControlDynamo LED controller; HDMI input or scheduled playback through the Dynamo CMS
Warranty3-year return-to-base
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Item​
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All pitches​
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Figures for P6.67, P8 and P10 are from the product datasheet for each pitch; figures for P4, P4.4, P5 and P5.7 are from the series specification. Cabinet resolution and pixel density are derived from the module resolution. Specifications may change without notice.

Dynamo CMS and warranty​


Every DHB Series screen bought from Dynamo includes the Dynamo CMS, with no licence fee and no per-screen subscription. Log in from a browser to upload, schedule, publish and check playback, with logins for your team, up to 5 GB of storage and up to 200 players. It runs through a compatible cloud media player specified per installation. Each player stores the playlist locally, so the screen keeps playing if the site connection drops.

The LED display carries a 3-year return-to-base warranty. A spares allowance of modules, power supplies and receiving cards is included in each supply. Installation and commissioning are available nationwide from Dynamo’s own engineers. Steelwork and foundations are quoted separately to the site.

DHB Series outdoor LED cabinets assembled as a 12 x 4 screen, rear service side


Where a high brightness LED screen is used​


DHB Series LED cabinets wrapping a building corner above a retail frontage


Photograph of an installed screen built from this cabinet series.

Curved DHB Series outdoor LED display wrapped around a building corner (render)


Get a quote for a DHB Series high brightness LED screen​


Send us the location, the wall or post position, which way it faces and the size you have in mind. We will reply with a whole-cabinet layout, the resolution at each pitch and a quotation.

Contact us or call +44 (0)203 489 9878.

High brightness LED screen: frequently asked questions​

What is a high brightness LED display?​


A high brightness LED display is an outdoor LED screen rated well above the 5,000 to 6,500 nits of a standard outdoor model. It stays legible with the sun on its face. The DHB Series is rated at 10,000 nits at every pitch. The extra output is headroom, used on bright afternoons and dimmed at night.

How many nits do I need for direct sunlight?​


In the UK, 5,000 to 6,500 nits is enough for a shaded or north-facing outdoor screen. Choose 10,000 nits where the LED face is in direct sun for much of the day. That means south- or west-facing walls, roadside signs read against the sky, high-level facades and sites surrounded by glass or pale cladding.

Is 10,000 nits too bright at night?​


It would be, which is why we commission every outdoor screen so that it does not run at full output after dark. The brightness schedule in the control system caps the screen from dusk until morning at the level set in the planning condition. An ambient light sensor is added where the site needs one. The rated figure is daytime headroom, not a running level.

What pixel pitch should a roadside LED sign use?​


DHB P10 for signs read from a moving vehicle or across a car park. DHB P8 where the screen is also read from a pavement or an approach road. DHB P6.67 where people stand or queue close to the screen, such as a retail park entrance or a stadium concourse.

Which DHB pitch suits a screen at ground level?​


P4, P4.4, P5 or P5.7, depending on how close people stand. P4 is best viewed from about 4 m and P5.7 from about 6 m. These are the pitches for ground-level retail frontages, forecourt screens and transport hubs. For a facade read from the street, P6.67 or P8 is the better fit, and P10 for a billboard or a perimeter screen read from a distance.

How much power does a high brightness LED screen use?​


The datasheet gives a maximum of 550 W per square metre for every DHB pitch. That is the figure to use for the electrical supply. Average consumption is 180 W per square metre for every pitch, roughly a third of the maximum, and that is the figure to use for running-cost estimates. Actual draw depends on the content and the brightness schedule, and a dimmed screen at night draws a fraction of the maximum. The power supplies accept 100 to 240 V AC at 50 or 60 Hz, so the screen runs from a standard UK mains supply.

Can a high brightness LED screen be curved or turn a corner?​


Yes. The 320 mm curve cabinet follows a curved elevation. The 45-degree cabinet turns a building corner without a gap in the picture. Standard cabinets can also be set at an angle to one another at each joint. The angles are built into the steel frame, so the curve is fixed and repeatable rather than flexed on site.

Is the DHB Series serviced from the front or the rear?​


Both. The datasheet method is front service: the module releases from the LED face with the supplied tool, so a screen fixed flush to a wall is maintained from a cherry picker or a tower. Where the site has a walkway or an open frame behind the screen, the cabinet is serviced from the rear with the same tool. We agree the service side at the drawing stage so the steelwork leaves the access the engineer needs.

What is the lead time for a DHB Series screen?​


Lead time depends on the cabinet count, the formats in the build and the steelwork. We confirm it on the quotation rather than quoting a standard figure. Tell us the target date when you enquire. We will plan the structural design, the planning submission and the installation visit around it.

What does DHB stand for?​


Dynamo High Bright, the name of our 10,000-nit high brightness LED screen range. It is sold in seven pixel pitches from 4 mm to 10 mm on a 960 × 960 mm aluminium cabinet. The Dynamo CMS is included, with a 3-year return-to-base warranty.

The post DHB Series High Brightness LED Screen: 10,000 nits for Direct Sunlight appeared first on LED Display & LED Screen Installations.
 
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