How Does An OLED PCB Function?
OLED PCB turn intos functional by using an organic LED mechanism.An OLED display is placed on the surface of PCB go through surface mount technology. Other PCB components are linked to the back position of this PCB.
It make of diodes that contain carbon-based molecules. That’s the reason why it is called organic.
What Are The Major Applications Of OLED PCB?
OLED PCB has a massive range of applications. Its tremendous benefits make it compatible with basic to advanced level devices. Let’s have a look at its major applications as belows:
What Is The Operating Temperature Of OLED PCB?
Organic LED-based circuit boards provide a massive scale operating temperature. This feature notably enhance it that use in electronic projects. OLED PCB stay highly operative from -350C to 850C.
That’s why it can use high TG material. PCB in high thermal conditions. It never declines it function when operating in this vast range. The supreme thermal conduction permits it to put up with extreme pressures caused by excessive heat.
Venture Oled PCB or Organic Light Emitting Diode PCB has been constantly gaining and improving use since 1980s.
Venture is an expert manufacturer of Oled PCB which is very useful over LCDs:
- doesn’t require backlight due to inherent emissive properties
- reduces power consumption by the omission of the backlight requirement
- through the consistent contrast ratio, the OLEDs do not suffer from viewing at different angles.
- Response times are not so affected by temperature ranges, broadening their acceptable use
Your Leading Oled PCB Supplier in China
Venture is more than 10 years in Oled PCB manufacturing in China. If you are looking for an expert manufacturer of Oled PCB from China, you need not look further. You’ve come to the right place!
As a leading manufacturer, we are capable of manufacturing a wide range of Oled PCB for your projects. Depending on the applications, Venture Oled PCB is conceivable to incorporate Oled displays into PCB designs.
Venture Oled PCB can be surface-mounted on the board with the display drivers required. They also operate with very low voltage requirements.
This low current requirement allows top-emitting OLEDs incorporated into PCB boards. So, it can operate with no loss of efficiency and supply voltage.
Venture Oled PCB is manufactured by using a construction methodology that places the OLED on the front side of the board. In China, Venture is the biggest Oled PCB supplier available in a wide variety of sizes, formats, interfaces, and colors to meet the requirements of various applications.
Our Oled PCB is widely used in different industrial use. You can use our Oled PCB for:
- smart control
- industrial control
- smart home application
- medical device, etc
Venture is your reliable and one-stop Oled PCB provider in China you can rely on. We can supply Oled PCB throughout the world. In fact, we are a trusted supplier of Oled PCB to more than 500 companies around the world.
We are looking forward to a business partner investor for our Oled PCB business. We have a wide range of Oled PCB products perfect for your startup business.
For your inquiries, feel free to contact us now!
OLED PCB: The Ultimate FAQ Guide
In this guide, I will answer all questions you have been asking about OLED PCB.
Whether you want to learn about features, characteristics, benefits, material type of other vital aspects about OLED – you will find the information right here.
Keep reading to learn more.
- What Is An OLED PCB?
- What Are The Benefits Of OLED PCBs?
- What Are The Limitations Of OLED PCBs?
- What Are Some Mounting Processes For OLED PCBs?
- What Quality Standards Should An OLED PCB Comply With?
- How Can You Test OLED PCBs?
- What Are The Mechanical Properties Of OLED PCBs?
- What Are The Different Layers In OLED PCBs?
- What Factors Determine The Price Of OLED PCBs?
- What Are The Thermal Properties Of OLED PCBs?
- What Are Some Examples Of OLED PCBs?
- What Should You Consider Before Deciding On The Number Of Layers In OLED PCBs?
- What Are The Chemical Properties Of OLED PCBs?
- What Are The Benefits Of Using Multilayered OLED PCBs?
- Why Should You Use Multilayer And Not Single Layered OLED PCBs?
- What Are The Characteristics Of OLED PCBs?
- What Are The Electrical Properties Of OLED PCBs?
- What Is The Architecture Behind OLED PCBs?
- What Is The Lifespan Of OLED PCB?
- What Is Burn-In In OLED PCB displays?
- What Is The Future Of OLED PCBs?
- What Are The Applications Of OLED PCBs?
- How Can You Fix Burn-In In OLED PCBs?
- How Does Burn-In And Image Retention Compare In OLED PCBs?
- How Does LED PCB Compare To OLED PCB?
What Is An OLED PCB?
This is a PCB that uses organic light-emitting diodes to emit light.
Besides, it is an organic layer that will generate light when an electric current passes through it.
What Are The Benefits Of OLED PCBs?
OLED PCBs have several advantages such as:
High Contrast Ratio
OLED PCBs can emit light directly on screens and can shut off some OLEDs to display pure black colors.
Wide Viewing Angles
You can install OLED PCBs closer to a surface as it does not require liquid crystal layers like LED PCBs.
This feature makes the OLED PCBs able to emit light closer to a screen hence offering wider viewing angles.
Quick Response Time
The response time is the duration it takes for the OLED to change between off and on state when a signal passes via the PCB.
Besides, the response time in OLED PCBs is quicker than those of LED PCBs.
What Are The Limitations Of OLED PCBs?
Here are some disadvantages of using OLED PCBs:
Organic materials that make the OLED PCBs will lower their lifespan.
Since OLED PCBs use some organic material, the luminosity level is generally low.
High Power Consumption
OLED PCBs will consume more power than LED PCBs during their operation.
When overusing a specific area of the OLED PCB, the OLED may retain the color hence causing a ghosting effect.
Technological advancements in making OLED PCBs have eliminated this issue.
What Are Some Mounting Processes For OLED PCBs?
There are two processes you can use to mount OLED PCBs.
These include the following:
Surface-Mount Technology [SMT]
This process entails mounting the electrical parts directly on the surface of the printed circuit board.
The electrical components that you will mount via this process are known as surface-mounted devices [SMD].
Besides, surface-mount technology allows you to automate the process hence lowers cost and enhances quality.
Also, it allows you to fit several parts within a specific area on the substrate.
Surface-mount parts are also smaller as they have smaller leads or no leads.
Through-Hole Technology [THT]
In this process, you will mount the electronic parts in holes on the printed circuit board.
After mounting, you will solder the parts on pads that are on the opposite side of the board.
Thru-hole technology is suitable for mounting large components such as large transformers.
Diagramatical Illustration of Surface Mount vs Thru Hole Technologies
What Quality Standards Should An OLED PCB Comply With?
OLED PCBs that comply with the set quality standards assure you that they are safe and operate efficiently.
Examples of such quality standards include the following:
CE Mark Of Quality
This quality standard assures you that suppliers of OLED PCBs comply with European health, safety, and environmental requirements.
Also, as long as the supplier from any country conforms to this standard, they can sell their OLED PCBs to European Economic Areas.
RoHS [Restriction of Hazardous Substances]
This standard will ensure that the manufacture of OLED PCBs does not contain any toxic substances.
Currently, RoHS restricts the use of 10 toxic substances when manufacturing OLED PCBs.
This standard ascertains the technological innovation of quality management systems that will:
- Provide continuous improvements
- Lower waste
- Minimize defect
Underwriters’ Laboratories [UL] Certification
This standard assures you that Underwriters’ Laboratories [UL] has conducted tests on the OLED PCB to nationally recognized standards.
How Can You Test OLED PCBs?
There are a variety of ways you can test OLED PCBs to ensure everything is working accordingly.
When an OLED PCB fails, you can incur losses hence you need to conduct testing according to the set standards.
The testing method you choose depends on the type of board, your budget, production stage, number of layers, etc.
Also, you will test the OLED PCB from the bare board stage to the assembly stage.
Testing allows you to fix flaws timely before it costs you a lot of money and time.
Such testing methods include the following:
This testing method entails verifying that the OLED PCB is functioning.
For instance, you can check if it powers on and off, or if it meets the client specifications, among others.
Also, after installing the OLED PCB on the clients’ system, you can check how it interacts with their system, and soldering bits.
Besides, functional testing entails ensuring the OLED PCB assembly conforms to standards such as MSHA, UL, CE, RoHS, etc.
In this process, you will use experts to conduct the test only on the external physical parameters.
Visual testing is the most cost-effective and easiest method of testing OLED PCBs.
This test entails checking for flaws such as joint or solder issues, bad mask application, scratches, etc.
For complex OLED PCB designs, there will be several parts in a dense pack within the printed circuit board.
Automated Optical Inspection cannot detect issues in the small OLED PCBs, and parts you mount on the surface.
This means it is vital to check the solder joints within the densely packed parts.
Heavy metals like lead that you will use to build OLED PCBs will absorb some X-ray.
This feature means you can view the internal components such as connections and the solder joints.
Automated Optical Inspection [AOI]
Visually inspecting the OLED PCB comes at some cost since humans cannot detect all flaws with the board.
Automated Optical Inspection will solve this issue since it is an automatic process.
This system contains an inbuilt estimate design of the OLED PCB which it uses for comparison.
The image of the system is compared to the inbuilt estimate design to check for any flaws.
Once you have the data on the issues, engineers can proceed to fix them in a timely fashion.
It is important to inspect the fitment and position of every part that you mount on the OLED PCB.
Here, you will use electrical probes to inspect the OLED PCB for capacitance, shorts, open ends, resistance, etc.
Besides, you will perform In-circuit testing once you complete checking the assembly and design of the OLED PCB.
What Are The Mechanical Properties Of OLED PCBs?
These include the following:
Bending Or Flexural Strength
This is the capacity of the OLED PCB to maintain its shape and form when you expose it to bending stress.
The standards for rigid, rigid-flex, and flex OLED PCBs must conform to IPC-6013C.
Time To Delamination
This is the duration it takes the layers of the OLED PCBs to maintain a bond in varying temperature and moisture conditions.
This is the capability of dielectrics and copper layers not to come apart when you expose them to chemical and thermal fatigue.
This is the dielectric materials’ mass per volume.
What Are The Different Layers In OLED PCBs?
The layers in OLED PCBs are laminated together with the assistance of adhesives or heat to form a single object.
The Different Layers In An OLED
Here are the layers you can find in OLED PCBs:
The substrate or base material is normally fiberglass with the most common one being FR4.
FR4 offers the OLED PCB its thickness and rigidity.
Also, you can find flexible OLED PCBs built using flexible high-temperature plastic material such as Kapton.
Cheaper versions of OLED PCBs use epoxies or phenolic that lack the durability of FR4.
This type of OLED PCB will emit a bad smell when you solder it and are common in low-end OLED PCBs.
The thermal decomposition temperature of phenolics is low meaning they delaminate when you hold a soldering iron for long on the board.
This is a thin layer that laminates on the OLED PCB with the assistance of heat and adhesives.
For double-sided OLED PCBs, the copper layer lies on both sides of the substrate material.
The thickness of copper layers varies and you can specify them by weight.
Most OLED PCBs have one ounce of copper layer per square foot.
For OLED PCBs that handle high power, the thickness of the copper layers can be two or three ounces per square foot.
This layer sits above the copper foil layer and gives the OLED PCB it’s color.
Their position shields the copper races from accidentally contacting other metals, conductive bits, or solder joints.
The Soldermask layer assists you to solder parts in the correct places and inhibits solder jumpers.
Most soldermaks layers come in the color green.
This is a white layer that you apply above the soldermask layer.
The silkscreen layer will add alphanumerical, and symbols to the OLED PCB.
This feature makes it easy for you to assemble and has indications that make it easy to understand the board.
Some silkscreen layers will indicate the operation of each pin and OLED.
Most silkscreens are white but you can use any ink color such as black, red, yellow, grey, etc.
What Factors Determine The Price Of OLED PCBs?
The following factors will determine the cost of OLED PCBs:
Type Of Assembly
Through-hole OLED PCBs cost more than surface-mounted OLED PCBs.
Number Of Parts
An OLED PCB containing more parts costs more than that using fewer parts.
Sophisticated parts on OLED PCBs cost more than standard-sized OLED PCBs.
Purchasing OLED PCBs in small amounts will cost more than when you purchase them in bulk.
This is because several suppliers will offer discounts on huge purchases.
Having unique features will make you spend more on OLED PCBs.
Placement Of Components
Mounting parts using through-hole technology costs more than surface-mounted technology.
What Are The Thermal Properties Of OLED PCBs?
Glass Transition Temperature [Tg]
This is the temperature at which OLED PCB substrate reversibly changes from hard to soft.
The solder temperature should be greater than the glass transition temperature.
Thermal Conductivity [k]
This is the rate at which heat moves in a material, which is greater for conductors than insulators.
Decomposition Temperature [Td]
This is the temperature at which OLED PCB substrates permanently decompose.
Decomposition temperature should be less than solder temperature.
Coefficient Of Thermal Expansion [CTE]
This is the rate at which OLED PCB expands in the presence of heat, and should be as low as possible.
What Are Some Examples Of OLED PCBs?
Rigid OLED PCB
This OLED PCB has a rigid base and strong substrate hence cannot fold or bend.
Once you manufacture rigid OLED PCBs, you cannot alter or modify them
Rigid OLED PCBs are available as single, double, or multi-layered PCBs.
The benefits of rigid OLED PCBs are
- Low electronic noise
- Simple to repair
- Lightweight and compact
- They absorb vibrations
A Rigid OLED PCB
Flexible OLED PCB
This OLED PCB contains several components on a flexible substrate.
The materials you can use to make flexible OLED PCBs are polyester film, polyamide, or polyether ether ketone.
Flexible OLED PCBs are available as single, double, or multilayer PCBs.
The advantages of flexible OLED PCBs include:
- Easy to fit in tiny spaces
- Lack of connectors
- Good thermal management
- Provide uniform electrical characteristics
Flexible OLED PCB
Rigid-flex OLED PCB
This is a hybrid between flexible and rigid OLED PCBs.
During the manufacturing process, you will bend or flex it to form its shape.
Besides, the flexible portion will connect the rigid OLED PCBs.
The advantages of rigid-flex OLED PCBs include:
- Reliable connections with solder joints
- Simple assembly
- Shock resistance
- 360-degree bendability
Rigid Flex OLED PCB
Single-sided OLED PCB
This OLED PCB has one conductive copper layer above the substrate layer.
The electrical components are on one side of the printed circuit board.
Due to its single layer, you cannot overlap conductive components.
The advantages of single-sided OLED PCBs include:
- Easy to fabricate, manufacture, and repair
- Suitable for low-density configurations
Single- Sided PCB
Double-sided OLED PCB
This type of OLED PCB has conductive layers on both sides of the printed circuit board.
Also, you need holes on the board to connect the parts.
The methods you can use to connect the parts are surface-mounting and thru-hole mounting technologies.
The advantages of double-sided OLED PCBs include:
- Compact circuit configuration
- High circuit density
- Relatively cost-effective
- Enhanced flexibility
Double Sided OLED PCB
Multilayer OLED PCB
This OLED PCB has three or more copper layers, containing several double-sided conducting layers.
Also, there are insulating sheets between these layers dividing them equally.
The configuration has to be airtight to ensure it operates optimally, and you can perform this under high pressure and temperature environments.
The advantages of multilayer OLED PCBs include:
- Compact size
- Flexible design
Multi layer OLED
What Should You Consider Before Deciding On The Number Of Layers In OLED PCBs?
As you contemplate on how many layers are suitable for your OLED PCBs, consider the following:
This is the time it will take manufacturers to make single or multilayered OLED PCBs.
The lead time for single or double-layer OLED PCBs is less than for multilayer OLED PCBs.
Besides, the size of the board also influences the lead time.
Here, you will consider what devices will use, and the demand these devices place on the OLED PCB.
Determine if the usage is complex and hi-tech, or simple with minimal operations.
These parameters will determine the capacity and function of the OLED PCB.
Multilayer OLED PCBs are suitable for high speed and operational capacities.
The manufacturing cost of multilayered, single, and double OLED PCBs vary considerably.
Besides, you will pay more if you require high-capacity OLED PCBs.
Density And Signal Layers
The number of layers in OLED PCBs relies on signal layers and pin density.
Besides, as pin density decreases, the number of layers increases.
What Are The Chemical Properties Of OLED PCBs?
This value indicates the moisture the OLED PCB will absorb when you submerge it.
The Standard for Safety of Flammability of Plastic Materials for Parts in Devices and Appliances illustrates limits to combustion.
For instance, OLED PCBs should not burn more than 10 seconds for each specimen.
Methylene Chloride Resistance [MCR]
MCR illustrates the absorption of methylene chloride, a volatile toxic solvent, which you will use in the production of OLED PCBs.
What Are The Benefits Of Using Multilayered OLED PCBs?
The manufacturing process for multilayered OLED PCBs is intense than that of single or double-layered OLED PCBs.
This feature makes them a better quality and more reliable than single or double-layer OLED PCBs.
Multilayer OLED PCBs are smaller than other PCBs that have the same functionality.
This feature is beneficial as the trend is moving towards compact, smaller, and powerful devices.
These OLED PCBs are lightweight as they do not require several connectors, unlike single or double-layer OLED PCBs.
This feature is suitable for small devices that require more mobility.
Multilayer OLED PCBs can withstand the weight, pressure, and heat that joins them.
Also, they use several layers of insulation that bind the layers with prepreg and protective substances.
Multilayer OLED PCBs are highly dense, containing several layers in one board.
The high density makes them more connective and can achieve more capacity and speeds.
There are some flexible multilayer OLED PCBs that are suitable for applications requiring frequent mild flexing or bending.
One Connection Point
Multilayer OLED PCBs operate as single units.
They also contain a single connection point and not multiple connection points for several single-layer OLED PCBs.
This feature is suitable for small devices to lower weight and size.
Why Should You Use Multilayer And Not Single Layered OLED PCBs?
The benefits include:
Multilayer OLED PCBs will use fewer connectors and other parts hence, they provide a lightweight solution.
For single-layer OLED PCBs, you need several connectors which increase their weight.
Surface area limits the density of single-layer OLED PCBs, while multilayer OLED PCBs increase the density through layering.
The high density enables it to have more functionality, enhancing speed and capacity despite its small size.
Improved Design Functionality
Multilayer OLED PCBs can offer more than average single-layer OLED PCBs.
Despite their small size and weight, they have controlled impedance, enhanced design quality, and more EMI shielding.
Multilayer OLED PCBs are smaller than single layer OLED PCBs.
Besides, adding more layers will increase the surface area and decrease the overall size, unlike single OLED PCBs.
This feature enables them to have high capacity in small devices.
For high-capacity single-layer OLED PCBs, you need to install them on large devices.
What Are The Characteristics Of OLED PCBs?
- They produce vivid and saturated colors
- Low power consumption
- Thin configuration
- High response time
- Produce high contrast ration
What Are The Electrical Properties Of OLED PCBs?
Dielectric Constant [dk]
This factor affects the impedance and signal integrity of OLED PCB materials.
Dissipation Factor [Df]
This is how you will measure signal or power loss in an OLED PCB material.
Surface Resistivity [?S]
This is how you will measure the surface resistance of a dielectric material to the flow of electricity.
Also, they are susceptible to moisture and temperature and should be high to ensure good signal integrity.
Relative Permittivity [Er]
This is also known as the dielectric constant.
Volume Resistivity [?]
This is how you will measure the volume resistance of a dielectric material.
Also, it should be high to ensure isolation between layers.
This is the capacity of OLED PCBs to overcome electrical breakdown in the z-direction.
What Is The Architecture Behind OLED PCBs?
This entails the following:
This is a thin conductive layer that offers support to the OLED structure.
This layer actively eliminates electrons by replacing them with electron holes.
It is also known as a transparent layer as thin layers deposit on the surface of the anode.
Indium tin oxide is an example of an anode layer that operates as the base of anode or electrodes.
This layer injects electrons when current flows via a device.
Materials you can use to make the cathode layer include calcium, magnesium, barium, and aluminum.
Depending on the OLED PCB, cathode layers can be transparent or opaque.
This layer will transport electrons from the anode layer and has organic plastic molecules different from conducting layers.
Also, you will use two layers for emitting, for instance, poly para phenylene and polyfluorene.
It also has organic molecules that will conduct electricity.
This layer transports holes from the anode layer.
It has organic plastics, polymers, polymer light-emitting diode, etc.
Architecture of an OLED PCB TV highlighting the various components of an OLED PCB
What Is The Lifespan Of OLED PCB?
OLED PCBs can last for several years or 100000 hours.
What Is Burn-In In OLED PCB displays?
Burn-in is also known as image retention and happens when an image plays continuously hence leaving a permanent mark on the panel.
What Is The Future Of OLED PCBs?
The future trends point out that OLED PCBs will be used in several devices as it has several advantages over LED PCBs.
For instance, many OLED PCBs are finding their way into consumer electronics such as TV sets and smartphones.
What Are The Applications Of OLED PCBs?
Here are some devices that use OLED PCBs:
- Computers screens
- Smartphone screens
- Television sets
- Portable devices displays
How Can You Fix Burn-In In OLED PCBs?
The process entails the following:
- Adjusting the brightness levels of the OLED PCB
- Enabling pixel shift if the OLED PCB has that feature
- Power the OLED PCB off for some time
How Does Burn-In And Image Retention Compare In OLED PCBs?
Burn-in means there is a degradation to the OLED PCB, while image retention illustrates that some OLEDs leave a ghosted imprint.
How Does LED PCB Compare To OLED PCB?
LED PCBs will use backlight to illuminate pixels, while OLED PCBs will emit their light to illuminate pixels.
Comparison Between OLED And PCB
Depending on your unique requirements and specifications, we have a range OLED PCBs.
Contact us today for all your OLED PCBs.