Abstract: A solar cell structure includes a semiconductor substrate having a front side and a back side. A pyramid structure is disposed on the front side of the semiconductor substrate. The pyramid structure has an aspect ratio between 0.5-1.2. A front passivation layer is disposed on the pyramid structure. A first anti-reflection layer is disposed on the pyramid structure. The first anti-reflection layer is a multi-layered, graded anti-reflection layer having at least three coating layers. The at least three coating layers comprise a silicon oxynitride layer having a thickness of 15-30 nm and a refractive index between 1.65 and 1.75. The silicon oxynitride layer is an outermost layer of the multi-layered, graded anti-reflection layer.

Abstract: A solar cell structure includes a semiconductor substrate having a front side and a back side; a pyramid structure disposed on the front side of the semiconductor substrate; a front passivation layer disposed on the pyramid structure; and a first anti-reflection layer disposed on the pyramid structure. The first reflective layer is a multi-layered anti-reflection layer having at least three coating layers. A front electrode is provided on the first anti-reflection layer. A rear passivation layer is provided on the back side of the semiconductor substrate. A second anti-reflection layer is disposed on the rear passivation layer. A back electrode is disposed on the second anti-reflection layer.

Abstract: A solar cell structure includes a semiconductor substrate having a front side and a back side; a pyramid structure disposed on the front side of the semiconductor substrate; a anti-reflection layer disposed on the pyramid structure; a front electrode provided on the anti-reflection layer; a passivation layer provided on the back side of the semiconductor substrate; a dielectric layer disposed on the passivation layer; and a back electrode disposed on the dielectric layer. The reflective layer is a multi-layer anti-reflection layer having at least three coating layers.

Abstract: An integrated LED lamp and a data transmission circuit and a synchronization circuit thereof are provided. Integrated LEDs of the present invention only need two pins, such that the originally existing LED package method can be adopted. In addition, by using two pins, the present invention can synchronize the LEDs or further update a displayed pattern. Because the old package technology has been well developed, the present invention can avoid the risk of the yield reduction caused by the new package technology in addition to reductions of the wire and the manufacturing cost.

Abstract: An integrated LED lamp and a data transmission circuit and a synchronization circuit thereof are provided. Integrated LEDs of the present invention only need two pins, such that the originally existing LED package method can be adopted. In addition, by using two pins, the present invention can synchronize the LEDs or further update a displayed pattern. Because the old package technology has been well developed, the present invention can avoid the risk of the yield reduction caused by the new package technology in addition to reductions of the wire and the manufacturing cost.

Abstract: A multi-channel wireless remote control system, which has N (an integer greater than one) wireless receiving devices and N (an integer greater than one) wireless transmitting devices. The N wireless transmitting devices corresponds to the N wireless receiving devices. The N wireless transmitting devices transmit frames to the respective N wireless receiving devices by a wireless carrier. Each frame contains a start bit, a device identification field to assign a receiving device, and a data field. Accordingly, i-th (i=1 to N) wireless transmitting device uses the device identification field to assign one of the receiving devices for receiving and sends data signal to the receiving device once every Tdi time.

Abstract: A multi-channel wireless remote control system, which has N (an integer greater than one) wireless receiving devices and N (an integer greater than one) wireless transmitting devices. The N wireless transmitting devices corresponds to the N wireless receiving devices. The N wireless transmitting devices transmit frames to the respective N wireless receiving devices by a wireless carrier. Each frame contains a start bit, a device identification field to assign a receiving device, and a data field. Accordingly, i-th (i=1 to N) wireless transmitting device uses the device identification field to assign one of the receiving devices for receiving and sends data signal to the receiving device once every Tdi time.

Abstract: A time board for dynamically displaying the universal time is provided, the board is adaptable to hang on the wall of lounge of an airport, a main railroad station hall, a passenger terminal of a harbor, the office of tele-communication and the classroom of a school, and comprises a flat rectangular board having front panel on which a world map of Mercator Equator Projection is attached containing every country and region of the world which are covered by 24 time zones, each of the time zone occupies 15 degrees longitudes repersenting an hour. An universal date display column and an universal hour display column parallel extend adjacent an upper border of the board from left to right margin thereof each contains 25 display windows spaced apart and in cooperation with the 24 time zones for inserting binary numbered LEDs to dynamically display the date and time differences around the world.