Royal Display Co.,Limited
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Common Cathode 4 Digit 7 Segment LED Display Alphanumeric Segment Display For Smart Toilet
Quick Detail of 7 segment LED display
Seven segment displays are very commonly used today. 7 segment displays are kind of led displays. You can find 7 segment displays on different electronic devices which display some status in the form of numbers. They are used to display time in digital watches, display the speed of automobiles in cars, on old buffers, etc. These displays have the features like clarity, accuracy, and optimum functionality. They are a low-cost option for displaying info. This display works on a common anode system. Meaning all the LED anodes are connected together.
Specification of FND Display
Code:Ultra Bright Blue
| Parameter | Symbol | Condition | Min | Typ | Max | Unit |
| Forward Voltage | Vf | If=20mA | 2.8 | 3.3 | V | |
| Reverse Voltage | Vr | Ir=10uA | 30 | V | ||
| Luminous Intensty | Iv | If=20mA | 30 | mcd | ||
| Spectrum With Of Half Value | △λ | If=20mA | 30 | nm | ||
| Wavelength | Dλ | If=20mA | 473 |
| Parameter | Symbol | Ratings | Unit |
| Forward Current(per dice) | Ipm | 20 | mA |
| Reverse Voltage(per dice) | Vr | 5 | V |
| Power Dissipation(per dice) | Pm | 80 | mW |
| Operating Temperature Range | Topr | -40~+120 | ºC |
| Storage Temperature Range | Tstg | -40~+120 | ºC |
| Solder Temperature(3 sec) | Th | 260 | ºC |
Application of Common Anode 7 segment LED Display
Seven-segment displays are widely used in digital clocks, electronic meters, basic calculators, displays in home appliances, cars, and various other electronic devices that display numerical information. There are two different types of driving seven-segment displays:- the common anode type and the common cathode type.
Advantages of seven segment LED display
1. Emitte lights under the condition of low voltage and small current drive; can be compatible with CMOS, ITL circuit;
2. Short response time when emitt lights (<0.1uS), excellent monochromaticity and high-frequency, big viewing angle, standard brightness, low power consumption, stable performance;
3. Prompt reply your inquiry within 24 Hrs;
4. Professional first class staffs answering your demands very smoothly;
5. Whatever big or small order, we will serve you with our best quality and superior service;
6. 100% QC inspection before shipping;
7. TUV listed meterials, Competitive price;
Advantages. Cost: The cost of the entire module of 7 segment display is very cheap as it only contains LEDs. Efficiency: LED displays in general are extremely efficient. Heat dissipation: The heat dissipated from this displays is very less and that increases the life of the devices.
FAQ About Digital Number LED Display
Q1. Can I have a sample order for your products?
A: For standard type,Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.
Q2. What about the lead time?
A:Sample needs 3-7 days, mass production time needs 1-3 weeks .
Q3. Do you have any MOQ limit for the order?
A: Low MOQ, 1pc for sample checking is available for most types.
Q4. How to proceed an order?
A: Firstly let us know your requirements or application. Secondly We quote according to your requirements or our suggestions. Thirdly customer confirms the samples and places deposit for formal order. Fourthly We arrange the production.
Q5. Is it OK to print my logo on the product?
A: Yes. Please inform us formally before our production and confirm the design firstly based on our sample.
Q6: Do you offer guarantee for the products?
A: Yes, we offer 2-3 years warranty to our products.
Q7: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.2%. Secondly, during the guarantee period, we will send new lights with new order for small quantity.
For defective batch products, we will resend them to you or we can discuss the solution including re-call according to real situation.