Abstract: Test structures and methods of testing pixel driver chip donor wafers are described. In an embodiment, a redistribution layer is formed over a pixel driver chip donor wafer and probed to determine known good dies, followed by removal of the RDL. In other embodiments, test routing is formed in the pixel driver chip using a polycide material or doped region in the semiconductor wafer.

Abstract: The present disclosure provides an audio signal interface circuit, and a control method, apparatus and terminal thereof, in the technical field of electronic technologies. The audio signal interface circuit includes a detection sub-circuit and a control sub-circuit. The detection sub-circuit may control, under control of a control signal, the control sub-circuit, to enable an audio signal interface to be communicated with an audio signal input terminal or an audio signal output terminal of a decoder chip. That is, the audio signal interface circuit enables the audio signal interface to not only implement input of audio signals, but also implement output of audio signals.

Abstract: The present disclosure provides an audio signal interface circuit, and a control method, apparatus and terminal thereof, in the technical field of electronic technologies. The audio signal interface circuit includes a detection sub-circuit and a control sub-circuit. The detection sub-circuit may control, under control of a control signal, the control sub-circuit, to enable an audio signal interface to be communicated with an audio signal input terminal or an audio signal output terminal of a decoder chip. That is, the audio signal interface circuit enables the audio signal interface to not only implement input of audio signals, but also implement output of audio signals.

Abstract: The embodiments of the present disclosure relate to a zipper type electrical connector comprising: a first chain and a second chain; a plurality of engaging elements provided on the first and second chains respectively; and a slider slidably connected to the first and second chains, such that the engaging elements on the first and second chains are switched between an engaged state and a disengaged state; wherein, in the engaged state, the engaging elements on the first chain and those on the second chain are arranged close to and staggered with respect to each other, and at least one of the engaging elements on one of the first and second chains and at least one of the engaging elements on the other of the first and second chains are connected to each other one by one to achieve an electrical connection.

Abstract: A HD video transmitting device, receiving devices, apparatuses and HD video transmission system are provided in this disclosure, the HD video transmitting device including: a video receiving interface, a video encoding chip connected with the video receiving interface and a video transmitting interface connected with the video encoding chip, wherein the video receiving interface receives primary HD video data and sends the primary HD video data to the video encoding chip; the video encoding chip receives the primary HD video data sent by the video receiving interface, encodes the primary HD video data to obtain HD video data, and sends the HD video data that to the video transmitting interface; and the video transmitting interface receives the HD video data sent by the video encoding chip and sends the HD video data that meet the HDbaseT standard to a video receiving terminal.

Abstract: The embodiments of the present disclosure relate to a zipper type electrical connector comprising: a first chain and a second chain; a plurality of engaging elements provided on the first and second chains respectively; and a slider slidably connected to the first and second chains, such that the engaging elements on the first and second chains are switched between an engaged state and a disengaged state; wherein, in the engaged state, the engaging elements on the first chain and those on the second chain are arranged closely and staggered with respect to each other, and at least one of the engaging elements on one of the first and second chains and at least one of the engaging elements on the other of the first and second chains are connected to each other to achieve an electrical connection; in the disengaged state, the engaging elements on the first chain is disengaged from those on the second chain, and the engaging elements on the first and second chains are electrically insulated from each other.

Abstract: The invention provides a detecting device for display apparatus, a detecting method for display apparatus, and a display system. The detecting device for display apparatus comprises: a control unit for controlling the display apparatus to display a predetermined test content, a collecting unit for collecting an actual display content displayed on the display apparatus when the display apparatus is controlled to display the predetermined test content; a comparison unit for comparing the actual display content collected by the collecting unit with the test content to determine whether they are identical or not; and a reporting unit for reporting the comparison result from the comparison unit. The detecting device for display apparatus in the invention is especially applicable to inspect the display apparatuses provided in buses, subways, trains, buildings and elevators.

Abstract: The invention provides an upgrading device and method of a signal motherboard for a display device. The upgrading device of a signal motherboard for a display device comprises a switch unit, configured to be connected with a switch interface of the signal motherboard and control an operating state of the signal motherboard; and a storage unit storing content for upgrading the signal motherboard, configured to be connected with an information interface of the signal motherboard. The upgrading method includes steps of: connecting the switch unit to the switch interface of the signal motherboard, and connecting the storage unit to the information interface of the signal motherboard; setting the signal motherboard to be in a pause state by the switch unit; and writing the content for upgrading the signal motherboard stored in the storage unit into the signal motherboard to upgrade the signal motherboard.