Royal Display Co.,Limited
| Supply Ability | 1000K pieces/Month |
| Delivery Time | 15~25 working days |
| Packaging Details | Cartons, Capboard, EPE, Blister Tray |
| Size | 0.28''~4'' |
| Tube Chip Color | Full color |
| Display Function | Graphics |
| Pixels | 10mm |
| Surface color | Black or Grey color |
| Polarity | Common Anode |
| Digits | 1 to 6 |
| Color | red, green, blue, yellow, orange... |
| Brand Name | ROYAL DISPLAY |
| Model Number | RYL4028 |
| Certification | ROHS, ISO |
| Place of Origin | China |
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Product Specification
| Supply Ability | 1000K pieces/Month | Delivery Time | 15~25 working days |
| Packaging Details | Cartons, Capboard, EPE, Blister Tray | Size | 0.28''~4'' |
| Tube Chip Color | Full color | Display Function | Graphics |
| Pixels | 10mm | Surface color | Black or Grey color |
| Polarity | Common Anode | Digits | 1 to 6 |
| Color | red, green, blue, yellow, orange... | Brand Name | ROYAL DISPLAY |
| Model Number | RYL4028 | Certification | ROHS, ISO |
| Place of Origin | China | ||
| High Light | ROHS 4 Digit LED Segment Display ，Seven Segment Common Cathode LED Display ，Bicolor Common Cathode LED Display | ||
4 Digit Led 7 Segment Display RGB Custom Led Display Bicolor Seven Segment LED Module
Quick Detail of 7 segment LED display
A 7 Segment LED Display is a electronic device that contains an array of 8 individual LEDs.
Each of the 8 segments that make up the display can be either be on the on state or the off state. Depending on which LEDs are lit determines the character which is displayed on the LED. The LED can be made to show a wide range of characters, including all numerical digits from 0-9.
The versatility of a 7 segment display lies in the fact that it can be a numerical value indicator. LED displays are used in all types of products, including alarm clocks, scoreboards, and all other signs showing character output.
Specification of 4 Digit 7 segment LED Display
| 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 About Digit Number LED Display
-- Audio Equipment or instrument panels;
-- General using for digital indicators;
-- Multimedia products;
-- Bank exchange rate display;
-- LED clock display;
-- Display for gas station and other various display areas of equipment/machine.
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;
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: 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.
Company Details
Business Type:
Manufacturer,Importer,Exporter
Year Established:
2010
Total Annual:
4000000-4500000
Employee Number:
650~800
Ecer Certification：
Verified Supplier
Royal Display Co.Ltd, specializing in the design, development and production of LCD display module full scheme for more than 10years. Our company's products include two series: standard and custom-made products, related to: Segment LCD display, Character LCD display, Graphic LCD display, COG ... Royal Display Co.Ltd, specializing in the design, development and production of LCD display module full scheme for more than 10years. Our company's products include two series: standard and custom-made products, related to: Segment LCD display, Character LCD display, Graphic LCD display, COG ...
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