The light flux (V) and the IF curve, therefore, using a constant current source driver can better control the brightness. In addition, the positive pressure drop of LED has a large range (up to 1V or more). According to the vf-if curve in the figure above, a small change in VF will cause a large change in IF, which will cause a big change in brightness.
Blue 7 Segment Display LED
7-Segment 5.0" 5 inch 1-Digit Single Common Anode CA 5inch
Red Ultra Bright LED 7
Segment Display 0.52 inch Single Digit Common Anode CA
Orange Seven Segment LED Display
0.43 inch 0.43" Dual Digit 2 Common Anode
Yellow Green LED 7 Segment
0.80-inch 0.8" 1 Digit Single Display Common Cathode CC
Yellow 8x8 LED Display Dot
Matrix 1.9mm Diameter 0.8 inch CA CC
White 7seg Display Seven Segment
LED 0.36 inch 1 Digit Single CA CC
Yellow LED Seven Segment Display
0.39" Three Digit 3 Common Cathode CC
Blue 7 Segment Display LED
7-Segment 0.56" 4-Digit Four Common Anode CA
Yellow LED Seven Segment Display
0.31" Three Digit 3 Common Cathode CC
Orange Seven Segment LED Display
0.50inch Single Digit 1Digit 0.5 Common Anode CA
This is because the high brightness LED chip is more expensive, and the higher the brightness, the more difficult to package. LED luminous Angle, this refers to the LED lamp with the LED element of the light Angle, the general SMD chip LED, that is, the SMD element of the light Angle is 120 degrees. The larger the luminescence Angle, the better the astigmatism effect, but the relative, the luminance of the luminescence is correspondingly reduced.
3311AG 7-segment
3311AG LED
3311BG Display
3311BG
Small pitch market mainstream packaging -SMD process, SMDS are short for Surface Mounted Devices. LED packers that use the SMD process attach bare chips to the support, connect them electrically with gold wires, and protect them with epoxy resins. The SMD encapsulated lamp beads are delivered to the display manufacturer, and the solder joints are connected to the PCB by reflow welding, and then formed into modules for assembly. SMD packaging of small spacing products, generally exposed LED lamp beads, or the way of masks.
5201AS LED
5201AS 0.50 inch
5201BS 7-Segment
5201BS Display
