9 results about "Contact layer" patented technology

The light emitting diode structure includes a substrate, a first electricity semiconductor layer formed on the substrate, a light-emitting layer formed on the first electricity semiconductor layer, a second electricity semiconductor layer formed on the light-emitting layer, a barrier layer formed on the second electricity semiconductor layer, and a contact layer formed on the barrier layer.

Provided is a method for manufacturing a photoelectric conversion device which can effectively prevent leak of current via an intermediate contact layer separation groove. The method includes: a step for forming a top layer (91) containing amorphous silicon as a main content; a step for forming on the top layer (91), an intermediate contact layer (93) which is electrically and optically connected to the top layer (91); a step for applying a pulse laser to remove the intermediate layer (93) and forming an intermediate contact layer separation groove (14) which reaches the top layer (91) so as to separate the intermediate contact layer (93); and a step for forming a bottom layer (92) containing microcrystal silicon as a main content on the intermediate contact layer (93) and in the intermediate contact layer separation groove (14), the bottom layer (92) being connected electrically and optically to the intermediate contact layer (93). The intermediate contact layer separation groove (14) is terminated in the i-layer of the top layer (91).

The invention provides a third-order distributed feedback terahertz quantum cascade laser structure and a making method thereof. The structure comprises a substrate, a ridge waveguide region and a third-order grating structure. The ridge waveguide region comprises a lower electrode, a sandwich region and an upper electrode in order from the bottom up. The sandwich region comprises a lower contact layer, an active region and an upper contact layer from the bottom up. The third-order grating structure comprises a plurality of parallel slits which are arranged in a periodic manner and pass through the upper electrode and the sandwich region in the vertical direction. The longitudinal duty ratio of the third-order grating structure is in the range from 8% to 15%. Terahertz wave is generated in the active region, is emitted from the slits by the mode selection effect of the third-order grating structure and is coupled in the space to the longitudinal ends of the ridge waveguide region. In the invention, the third-order grating is introduced in a waveguide structure of the terahertz quantum cascade laser and a relatively small far-field divergence angle is obtained by adjusting different grating duty ratios, thereby overcoming the problem that the third-order grating has a relatively big far-field divergence angle due to phase mismatch.

The invention provides a healthy sleep bed and an adjustment method thereof. The healthy sleep bed comprises a bed body, a signal source device, a filling device and a controller, wherein the bed bodyhas a lying surface for a human body to lie down; the signal source device is arranged at one side of the lying surface and comprises an elastic bag communicated with the filling device and a shape change sensor fixed to the elastic bag; the shape change sensor comprises a shape change contact layer for bearing shape change, a hollow hosepipe, and a soft layer; the hosepipe is clamped between theshape change contact layer and the soft layer; and fluid conductive adhesive or powdery conductive adhesive is arranged in the hosepipe. According to the healthy sleep bed and the adjustment method thereof, the volume of the elastic bag and the shape of the lying surface can be adjusted, so that a person lying on the healthy sleep bed has a relatively comfortable sleeping posture, thereby havingthe relatively high sleep quality.

The invention discloses a liquid crystal display panel. The liquid crystal display panel comprises an array substrate and is characterized in that the array substrate is divided into a display area and a non-display area, and a plurality of test pads for being connected with test equipment are arranged in the non-display area; each test pad comprises a surface contact layer, a signal transmission layer and a protecting layer, the surface contact layer is used for receiving test signals output test equipment, the signal transmission layer is used for transmitting the test signals to the display area, the signal transmission layer is made of metal and divided into a hollow area and a non-hollow area, the protecting layer is arranged between the surface contact layer and the signal transmission layer and provided with via holes, and the via holes are used for allowing the surface contact layer to be communicated with the non-hollow area of the signal transmission layer so as to allow the test signals to be transmitted to the signal transmission layer. The liquid crystal display panel has the advantages that array tester needling signals can be smoothly transmitted from the surface contact layers of the test pads to the signal transmission layers, and the edge light transmittance of a frame area can be increased at the same time.