A semiconductor light-emitting device and a method for manufacturing the same can include a wavelength converting layer in order to emit various colored lights including white light. These scope related index keys, or scope keys allows the scope of the search to be selected, reducing the number of documents that a search is required to sift through to obtain results. The first light-emitting layer is formed between an anode and a cathode. A cap is designed to cover an applicator portion of the ball, with the cap incorporating a bearing structure which, in the mounted position of the cap on the container, presses the ball in a leaktight manner against said annular sealing zone. The signal is formed to vary temporally, making it possible to detect any image freeze emitted by the device. The tray is affixed against the rear face of the seatback and is held against the face by a locking mechanism including an actuating member, and a pressure exerted on the actuating member releases the tray such that the tray can be removed from the seatback.