Element in SSL light source

The United States Department of energy SSL years plan involved in LED and OLED white general lighting source, described below is the various components of each source, and these components on the overall efficiency of light source bring much help, improve energy efficiency opportunities are there?

1.1 LED light source components

With the continuous development of solid-state lighting technology, a large number of different structures or types of products have appeared on the market. But eventually, the core components are the same. As the LED core chip (die), or LED (LED device package, also known as the main one and a plurality of die package together), LED array (several LED package integrated together), LED module (including the LED package and LED power supply or drive, may also contain other elements as the light, heat, mechanical or electronic device interface), LED (LED Lamp), the lamp assembly in accordance with the ANSI standard, connected to the LED light source, there are two kinds of LED lamps, an integrated LED lamp, is mainly a built-in LED drive, a non integrated LED lamp, no built-in drive. LED drive, refers to the power supply control circuit with integrated LED array module configuration, to provide adequate power and current by changing the voltage of the line is correct in the process of using LED for the external environment caused by factors such as temperature change of color or brightness offset problem. Finally, LED lamps (LED Luminaire), refers to the complete lighting unit, can be directly inserted into the power socket.

Figure 4.1LED source components

1.2 OLED element - OLED devices, similar to the LED package, refers to a collection of material layer, including a light emitting layer and charge transfer (using organic material), similar to LED in the core tube.

OLED panel (panEL): refers to one or more OLED devices, these devices will be assembled together to form a unit that has great light output (at least 500 lumens). The OLED panel is similar to an array or module in LED that is directly connected to a OLED drive. The panel may also integrate packaging, thermal management and optical connection devices.

OLED lamps (Luminaire): a complete lighting system, can be directly connected with the circuit. Consisting of one or more OLED panels, which includes a OLED driver and a fixing device. Of course, transparent electrodes can also be used to produce transparent OLED light-emitting devices. As shown in the following figure OSRAM developed a transparent OLED film.

Figure 4.2OLED device structure and panel

Figure 4.3 transparent OLED light strip