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DISPLAY 7-SEG 0.3" DBL RED 10DIP |
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DISPLAY 7SEG 0.36" SGL RED 10DIP |
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DISPLAY 7SEG 0.39" SGL YLW 10DIP |
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Kingbright |
DISPLAY 7SEG 0.8" SGL BLUE 10SMD |
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Kingbright |
DISPLAY 7SEG 0.36" SGL YLW 10DIP |
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DISPLAY 7SEG 0.56" SGL GRN 10DIP |
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Kingbright |
DISPLAY 7SEG 3.98" SGL RED 10DIP |
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Kingbright |
DISPLAY 7SEG 3.98" SGL YLW 10DIP |
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Kingbright |
DISPLAY 7SEG 0.36" SGL YLW 10DIP |
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Kingbright |
DISPLAY 7SEG 0.56" SGL RED 10DIP |
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Kingbright |
DISPLAY 7SEG 0.56" DBL GRN 18DIP |
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Kingbright |
DISPLAY 7SEG 1.02" SGL YLW 14DIP |
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Kingbright |
DISPLAY 7SEG 3.98" SGL GRN 10DIP |
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Kingbright |
DISPLAY 7SEG 0.43" SGL YLW 14DIP |
0 |
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Kingbright |
DISPLAY 7SEG 3.98" SGL GRN 10DIP |
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Kingbright |
DISPLAY 7SEG 0.43" SGL GRN 14DIP |
0 |
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Kingbright |
DISPLAY 7SEG 0.56" DBL YLW 20SMD |
0 |
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Kingbright |
DISPLAY 7SEG 0.56" DBL YLW 18DIP |
0 |
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Kingbright |
DISPLAY 7SEG 0.3" DBL GRN 20SMD |
0 |
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Kingbright |
DISPLAY 7SEG 0.39" SGL RED 10DIP |
0 |
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LED Character and Numeric Display Modules are optoelectronic devices that use light-emitting diodes to present alphanumeric characters and numerical data. These modules provide visual information in various applications, offering advantages such as low power consumption, high reliability, and compact form factors. Their importance in modern technology spans from consumer electronics to industrial control systems, where clear and efficient data presentation is critical.
| Type | Functional Features | Application Examples |
|---|---|---|
| 7-Segment Displays | Eight LEDs arranged in segments to form digits and basic letters | Digital clocks, calculators, meters |
| Dot Matrix Modules | Configurable LED arrays for custom character/number display | Message boards, industrial HMIs |
| Backlit Numeric Modules | Integrated backlighting for enhanced visibility in low-light conditions | Appliances, automotive dashboards |
| High-Brightness Displays | Optimized for outdoor/sunlight-readable applications | Transportation signage, outdoor kiosks |
A typical LED display module comprises: - PCB Substrate: Provides mechanical support and electrical connections - LED Chips: GaAsP or InGaN materials for different color emissions - Optical Lens: Focuses light output for improved visibility - Driver Circuits: Includes shift registers and current-limiting resistors - Control ICs: Handles multiplexing and brightness control - Encapsulation Material: Epoxy resin protecting internal components
| Parameter | Description | Importance |
|---|---|---|
| Module Size | Physical dimensions (mm/inches) | Determines compatibility with device housing |
| Luminous Intensity | Measured in millicandela (mcd) | Affects visibility under different lighting conditions |
| Forward Current | Typical operating current (mA) | Impacts power consumption and LED longevity |
| Viewing Angle | Angular range for optimal visibility (degrees) | Critical for user interface design |
| Refresh Rate | Display update frequency (Hz) | Prevents visible flickering |
| Color Wavelength | Peak emission wavelength (nm) | Determines perceived display color |
| Operating Life | MTBF rating (hours) | System reliability consideration |
Key industries include: - Consumer Electronics: Calculators, remote controls, kitchen appliances - Industrial Equipment: PLCs, measurement instruments, factory automation - Medical Devices: Patient monitors, diagnostic equipment - Transportation: Vehicle counters, traffic signal indicators - Commercial Displays: POS systems, digital signage
| Manufacturer | Product Series | Technical Highlights |
|---|---|---|
| Avago Technologies | HDSP-5600 Series | Alphanumeric 14-segment display with 120 viewing angle |
| Everlight Electronics | T-103SRDWA Series | High-brightness red 7-segment display (150mcd) |
| Nichia Corporation | NDSB5120UC-TR | Blue LED dot matrix module for custom character display |
| OSRAM Opto | LMT8433W | 4-digit 7-segment display with integrated driver IC |
| Lite-On Technology | LTS-M610HD | Industrial temperature range (-40 C to +85 C) |
Key considerations: - Environmental factors: Temperature range, humidity resistance - Electrical requirements: Voltage compatibility, power budget - Mechanical constraints: Panel cutout dimensions - Interface type: Common cathode/anode configuration - Certification standards: RoHS, UL compliance - Cost-performance balance for volume production
Emerging developments include: - Integration of driver ICs for reduced system complexity - Miniaturization through surface-mount packaging - Smart display modules with embedded microcontrollers - Adoption of eco-friendly materials for sustainable manufacturing - Flexible PCB-based modules for curved display applications - Enhanced color mixing techniques for full-color numeric displays