Presentation of COT

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Integrated Molding Technology of LED Board Encapsulation and Film Coating
Integrated Molding Technology of LED Board Encapsulation and Film Coating

Has good mechanical strength, consistency, temperature resistance and weather resistance, no yellowing, no cracking, no stress, and repairable.
– Thermal shock resistance : -40 to 85 °C for over 100 rounds.
– High Weatherability Salt and alkali resistant, low deformation force, and flexible.
– High Scratch Resistance : The surface is scratch resistant with above 3H scratch hardness.
– High Maintainability Uniform appearance even after repairing and the light is soft.
– High Consistency UV resistant, no yellowing, no reflection and high consistency.
– Economical : Cost-effective, waterproof, moisture-proof and anti-collision.

Has good mechanical strength, consistency, temperature resistance and weather resistance, no yellowing, no cracking, no stress, and repairable.
– Thermal shock resistance : -40 to 85 °C for over 100 rounds.
– High Weatherability Salt and alkali resistant, low deformation force, and flexible.
– High Scratch Resistance : The surface is scratch resistant with above 3H scratch hardness.
– High Maintainability Uniform appearance even after repairing and the light is soft.
– High Consistency UV resistant, no yellowing, no reflection and high consistency.
– Economical : Cost-effective, waterproof, moisture-proof and anti-collision.

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Discover a studio  based on XR

After COT treatment, the occurrence of yellowing, blistering and delamination caused by extreme temperature will be effectively reduced .
After COT treatment, the occurrence of thickness difference, unevenness and color difference will be effectively reduced.

After COT treatment, the occurrence of yellowing, blistering and delamination caused by extreme temperature will be effectively reduced .
After COT treatment, the occurrence of thickness difference, unevenness and color difference will be effectively reduced.

typical problemwith XR solution
line

Problem withdisplay performance

Differents colors from different angles

image qualityon led display

cost & reliabilityfor led display

On site problem for xR
  • 1. SOLUTION COST
  • 2. SET UP CONVENIENCE
  • 3. STABILITY & RELIABILITY
Discover what is the difference between HDR and xR
Technical Advantages

COT products have passed the thermal cycle testing
of -40°C~85°C for more than 150 times without defects such as dead leds, cracking and so on.

COT products have passed the thermal cycle testing
of -40°C~85°C for more than 150 times without defects such as dead leds, cracking and so on.

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Put a conventional GOB product and a COT product together, and then use a screwdriver to scratch the product surface. It turns out that the GOB product is not scratch resistant with scratches and cracks occurred immediately, while the COT product has no damage.
Red Dye Penetration Testing & ESD Testing

After COT treatment, the occurrence of yellowing, blistering and delamination caused by extreme temperature will be effectively reduced .

After COT treatment, the occurrence of thickness difference, unevenness and color difference will be effectively reduced.

After COT treatment, the usual surface collisions will not cause any damage to leds.
After COT treatment, the deformation warping under extreme temperature conditions will be effectively reduced and the deformation stress is low.
Put a conventional GOB product and a COT product together, and then use a screwdriver to scratch the product surface. It turns out that the GOB product is not scratch resistant with scratches and cracks occurred immediately, while the COT product has no damage.
Red Dye Penetration Testing & ESD Testing

High Protection Grade
· Super strong anti-blue light and anti-ultraviolet abilities ensure no yellowing for 5 years.
· Super environmental adaptability, reaching -40 to 85°C thermal shock resistance standard, which is unmatched by other solutions.
· Super protection. Super waterproof and moisture-proof, and salt and alkali resistant.

High Protection Grade
· Super strong anti-blue light and anti-ultraviolet abilities ensure no yellowing for 5 years.
· Super environmental adaptability, reaching -40 to 85°C thermal shock resistance standard, which is unmatched by other solutions.
· Super protection. Super waterproof and moisture-proof, and salt and alkali resistant.

High Protection Grade
· Super strong anti-blue light and anti-ultraviolet abilities ensure no yellowing for 5 years.
· Super environmental adaptability, reaching -40 to 85°C thermal shock resistance standard, which is unmatched by other solutions.
· Super protection. Super waterproof and moisture-proof, and salt and alkali resistant.

Smooth Touch Feel
· The surface is scratch-resistant and smooth reaching the level of 3H
· Super consistency. To achieve the same appearance color from thousands to tens of thousands of square meters.

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Anti-Deformation
· Anti-deformation. In the case of -40°C, deformation does not exceed 5%.
· Matte surface treatment. Highly consistent surface roughening treatment , non-reflective.

  • 1.NO SHOOTING LINES
  • 2. NO BANDING OR NOISE
  • 3. PRECISE COLOR DISPLAY CLOSE TO REAL
  • 4.SAME COLORS EFFECT FROM ALL ANGLES

Adequate visual refresh rate on display --no shooting lines on camera

Display design led screen

  • Low scan, best display effect
  • Less than 8 scans recommended

Control system

  • Adequate refresh rate in low grayscale ensured in collaboration with ic
  • Genlock available to keep video source, display, cameras
    synchronised

Anti-Deformation
· Anti-deformation. In the case of -40°C, deformation does not exceed 5%.
· Matte surface treatment. Highly consistent surface roughening treatment , non-reflective.

shooting lines

Improve the refresh of each gray scale can effectively solve the shooting lines issue.

Reduce the number of scans while designing the display. It is recommended that the number of scans not exceed 16 scans for shooting applications.

Prioritize the reduction of current to reduce brightness, and preset multiple brightness adjustment modes that prioritize the use of current.

Driver IC mode adjustment.

Random scanning.

Rolling black lines

Frame tracking technology to reduce black field waiting time.

Genlock function of the controller to synchronize the LED display with the camera, and fine-tune the phase of Genlock

FRAME MULTIPLICATION to led screen

From the relationship between camera exposure time and LED display frame rate, we can determine the proper combination of shutter angle and frame rate for the most optimal shooting result.

We can support frame multiplication, allowing for expansion of frame rate.

Even Thickness
·
Uniform thickness. There is no obvious difference in thickness as the boards almost won’t deform.· Maintainability. No color difference after maintenance and no yellowing.

No bangding,precise color

Adequate grayscale on display — colors more precisely controlledDisplay designCustomized color gamut covered by the RGB lamp beadsDisplays uncoupled designed(screen design and IC selection)White to black couplingBlack to white couplingCross-board coupling

Control system:Increase in display grayscale ensured in collaboration with ICCapability of calibrating the screen2.1 The brightness calibration of the screen from 0 to 255 conforms to the EOTF curve;2.2 Calibrate the color accuracy of the screen to ensure δe<4

1. Accurately capture the original color gamut ofthe display.

2. Automatic adjustment according to the colorgamut requirements of the input source.

1. 22bit+ achieves the highest 6bit grayscalepromotion and the smallest 0.002nits precisecontrol and compensation.
2.Precise Grayscale, use a colormeter to collectthe original grayscale performance of eachcolor, and make corrections andcompensations.

Effet comparaison (before left) and after (right)

Same effect fromdifferent angles

Requirements of xR for LED Display
Small enough RGB chip spacing required
Display design
1.Choose smaller size LED chips
2.The mesh cover of LED is speciallyControl system:Quick adjustment of RGB ratio in case of aproblem to ensure normal color display of some cameras

REAL CASE for xr

the solution for xR

Suitable for shooting and application
of small scenes

1G bandwidth solution at 8K resolutionSuitable for shooting and applications in
large-scale scenes such as studios

Higher requirements of xR for LED screens
8K HDR
HFR 120Hz/144Hz/240Hz
10bit/12
bitPrecise Color
Ultra low latency

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1. Programming and Intuitive Operation Worldwide

The programming of classical LED Mesh and LED Mesh Curtain can be done using a smartphone, tablet PC or other remote device. The media facade can easily be live controlled from anywhere.

2. Easy installation and Retrofitting

LED Mesh outdoor facade has a simple assembly concept. Though our specially designed clip-technology systems, the LED-profiles and the universal connector system are very easy to install. And, if necessary, they can quickly and smoothly be replaced on location by our team or any Mesh trained person.

3. Brillant Quality

Both the full video-based media facade systems feature an infinite number of colors, a high brightness, resolution and refresh rate for an incredible and creative result on the facade. For both Classical LED Mesh and LED metallic Mesh curtains.

4. Night and Daytime Use

To ensure a 24-hour operation anywhere in the world our Classical LED Mesh and metallic LED Mesh curtain façade are available with a maximum brightness > 11000 nit (cd / m²). At dusk or at night the system can continuously be dimmed, automatically or manually.

5. Homogeneous Appearance

Even though LED Mesh curtains are composed of stainless steel on which are attached LED strips, that make it a massive structure, they have the advantage of having a homogeneous appearance. The LED strips are attached to the reverse side of the wire mesh maintaining the homogenous look of the façade at all times. The Metallic LED Mesh panel is regular. The inconspicuous cabling of each profile is not visible from the outside and with the high transparency of the mesh, the translucent look of the facade is maintained from both inside and outside.The shape and size of the media screen does not have to be the same size as the mesh facade. Since the LED strips are attached to the reverse side of the Mesh wire, they are hidden by it, therefore it becomes invisible. LED Mesh curtain wire are a design piece on their own. Therefore, even when the LED are off, the Mesh becomes an object of decoration and not a simple screen.

6. Individual Service

At every phase of your project our engineering team will give you comprehensive support. We will guide you safely every step of the way from concept to implementation. Street Co’ analyses the project and spot data, designs the module, creates video content, install the module and offers a two year guarantee on any product.

1. Easy Front Maintenance

Through an intuitive and easy-to-use maintenance system the LED Video Wall can be serviced from the front of the display. The LED modules can be removed quickly and efficiently for convenient maintenance.

2. Super fine HD pixel pitch

All available screen sizes have full high definition resolution and a standard 16:9 aspect ratio. This fine pixel pitch, combined with the advantage of no unsightly edges, makes these displays the best in high-end presentation video walls.

3. Adjustable Backlight

The Fine Pitch LED Presentation Video Wall is bright enough for all ambient lighting conditions, but the screen can be adjusted manually to suit user preferences. If your conference or meeting room is quite dark then you can reduce the backlight brightness to improve overall readability.

4. Optional floor stand

If you don’t have the desired wall space, an optional floor stand can be included to mount the LED video wall if the product allows it.

1. Easy install and maintenance

Flexible LED displays have a simple installation concept, which is to clip the modules together. Though our specially designed clip technology, LED profiles and universal connector system are very easy to install. And if necessary, they can be quickly and easily replaced on site by our staff or any other trained person.

2. Brillant Quality

Flexible LED displays offers an infinite number of colors, brightness ranging from 800 to 1000nits, excellent resolution and high refresh rate for an incredible and creative result on different application media.

3. Individual Service

At every phase of your project our engineering team will give you comprehensive support. We will guide you safely every step of the way from concept to implementation. Street co’ analyses the project and spot data, designs the module, creates video content, install the module and offers a two year guarantee on any product.

4. Customizable

Flexible LED screen is a product that allows you to express your imagination. Indeed, you can give your screen any shape and size you want : cylindrical, square, circular, curved, etc. These screens will help you beautify your structures and attract your customers.

1. Modular design

Based on the most proper pixel pitch, standard modules can be assembled into display in diverse sizes.

2. Easy installation and maintenance

Easily fix the module in the structure very fast; customized installation is also available.

3. Beautiful appearance design

Transparent LED modular design and simple structure make it more clear and transparent

4. Performances stables

D’innombrables et stricts tests avant que les produits ne quittent l’usine et jouissent d’une bonne réputation auprès des clients.

5. Planéité complète

La structure précise en aluminium assure la parfaite planéité du module.

6. Rentabilité

L’assemblage et l’installation faciles permettent d’économiser beaucoup de coûts de main-d’œuvre.

Cot vs GOb

Items Condition COT GOB
Thermal Shock Test -40 ~ 85 >150 times <10 times
High Temperature / High Humidity 85°C/85RH >150H <72H
UV UVA+UVB 168H Attenuation of less than 2% 168H Yellowing
Grey Scale 255 Aging 255 aging Ok No
Low Temperature Storage -40°C/200H Ok No
Pressure Cooker Test 121°C, 2atm 12H No
Anti-static >=8000V 12000V 6000V
Maintenance No appearance difference Gap
Cleaning Cloth with ethanol Chemicals (Naphtha)
Scratch Resistance Pencil Hardness Test 2H HB1
Deformation No Yes
Color Consistency High Average
Thickness Consistency and Uniformity High Average
Anti-collision/Touch High High
Moisture-proof High High
Acid and Alkali Resistance High High

Cot vs COb

Items Condition COT GOB
Thermal Shock Test -40 ~ 85 >150 times <100 times
High Temperature / High Humidity 85°C/85RH >150H >150H
UV UVA+UVB 168H Attenuation of less than 2% 168H Yellowing
Grey Scale 255 Aging 255 aging Ok Ok
Low Temperature Storage -40°C/200H Ok Ok
Pressure Cooker Test 121°C, 2atm 12H 12H
Anti-static >=8000V 12000V 6000V
Maintenance No appearance difference Gap Generated
Cleaning Cloth with ethanol Chemicals (Naphtha)
Scratch Resistance Pencil Hardness Test 2H HB1
Deformation No No
Color Consistency High Average
Thickness Consistency and Uniformity High High
Anti-collision/Touch High High
Moisture-proof High High
Acid and Alkali Resistance High High
Module Size Big Board Small Board

Cot vs Bare board

Items Condition COT GOB
Thermal Shock Test -40 ~ 85 >150 times <100 times
High Temperature / High Humidity 85°C/85RH >150H <72H
UV UVA+UVB 168H Attenuation of less than 2% 168H Attenuation of less than 2%
Grey Scale 255 Aging 255 aging Ok Ok
Low Temperature Storage -40°C/200H Ok Ok
Pressure Cooker Test 121°C, 2atm 12H 12H
Anti-static >=8000V 12000V 1000V
Maintenance Convenient; No appearance diffference Very convenient
Cleaning Cloth with ethanol Not Convenient
Scratch Resistance Pencil Hardness Test 2H No
Deformation No No
Color Consistency High High
Thickness Consistency and Uniformity High High
Anti-collision/Touch High Low
Moisture-proof High Low
Acid and Alkali Resistance High Low

Cot vs Film coating

Items Condition COT GOB
Thermal Shock Test -40 ~ 85 >150 times <100 times (Discolour & Cracking)
High Temperature / High Humidity 85°C/85RH >150H <72H (Discolour & Cracking)
UV UVA+UVB 168H Attenuation of less than 2% 168H Attenuation of less than 10%
Grey Scale 255 Aging 255 aging Ok Ok
Low Temperature Storage -40°C/200H Ok Delamination
Pressure Cooker Test 121°C, 2atm 12H 12H (Discolour)
Anti-static >=8000V 12000V 2000V
Maintenance Convenient; No appearance difference Very convenient
Cleaning Convenient Not Convenient
Scratch Resistance Pencil Hardness Test 2H No
Deformation No No
Color Consistency High High
Thickness Consistency and Uniformity High High
Anti-collision/Touch High Low
Moisture-proof High Low
Acid and Alkali Resistance High Low
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