90 results about "Stack light" patented technology

The invention provides a manufacturing method of a TFT substrate and a prepared TFT substrate. According to the manufacturing method of the TFT substrate, based on the characteristic of high visible light transmittance of a transparent metal oxide semiconductor material and doping processing is performed on a transparent metal oxide semiconductor, so that a transparent metal oxide conductor can be obtained, and at the same time, an active layer and a pixel electrode are formed, and therefore, the number of the times of photo masking can be decreased, production efficiency can be improved, and production cost can be reduced; in addition, based on only one semi-transparent photo mask, exposure and etching are performed, so that a common electrode, and a stack light shielding layer formed by a light shielding layer and a transparent conductive layer can be obtained, and therefore, the number of the times of photo masking can be further decreased; and the light shielding layer is arranged at the lower part of a TFT, so that the electrical stability of the TFT will not be affected by illumination. The TFT substrate of the invention is simple in manufacturing process and low in production cost; and the light shielding layer is arranged at the lower part of the TFT, so that the electrical stability of the TFT will not be affected by illumination.

Disclosed is a light emitting device having vertically stacked light emitting diodes. It comprises a lower semiconductor layer of a first conductive type positioned on a substrate, a semiconductor layer of a second conductive type on the lower semiconductor layer of a first conductive type, and an upper semiconductor layer of a first conductive type on the semiconductor layer of a second conductive type. Furthermore, a lower active layer is interposed between the lower semiconductor layer of a first conductive type and the semiconductor layer of a second conductive type, and an upper active layer is interposed between the semiconductor layer of a second conductive type and the upper semiconductor layer of a first conductive type. Accordingly, there is provided a light emitting device having a structure in which a lower light emitting diode comprising the lower active layer and an upper light emitting diode comprising the upper active layer are vertically stacked. Therefore, light output per unit area of the light emitting device is enhanced as compared with a conventional light emitting device, and thus, a chip area of the light emitting device needed to obtain the same light output as the conventional light emitting device can be reduced.

The present invention provides a patterned substrate and a stacked light emitting diode. The patterned substrate includes: a substrate having a (0001) crystal plane and a plurality of alternatively arranged recess structures therein, thereby forming a plurality of alternatively arranged top surfaces; and a dielectric barrier layer covering the bottom surface and / or the sidewalls of the recess structures. Each of the alternatively arranged recess structures includes a bottom surface and a plurality of sidewalls surrounding the bottom surface.

A vertical stacked light emitting structure includes a substrate unit, a stacked type light emitting module, and a flip-chip type light emitting module. The substrate unit includes a substrate body. The stacked type light emitting module includes a first light emitting unit and a light guiding unit. The first light emitting unit includes at least one first LED bare chip disposed on and electrically connected to the substrate body, and the light guiding unit includes at least one light guiding body disposed on the first LED bare chip. The flip-chip type light emitting module includes a second light emitting unit. The second light emitting unit includes at least one second LED bare chip disposed on the light guiding body and electrically connected to the substrate body. Hence, the first LED bare chip, the light guiding body, and the second LED bare chip are stacked on top of one another sequentially.

The present invention provides a stack type organic electroluminescence display apparatus which can be structured to be an active matrix type. The organic electroluminescence display apparatus of the active-matrix driving system includes: a display region having a plurality of pixels each of which includes at least two subpixels, wherein the subpixels have three or more light-emitting devices stacked thereon each of which is configured by sandwiching between electrodes an organic layer including an emission layer, and any of the emission layers emits a light of different colors from each other and is commonly formed in all pixels; and a circuit for applying voltage to between the electrodes of the light-emitting device, wherein at least one light-emitting device among the stacked light-emitting devices is nonemission-treated.