Abstract:
A display apparatus comprises a pixel array, a front-end circuit, a test circuit, and an enable circuit. The test circuit tests the pixel array. The enable circuit determines whether to enable the test circuit in response to a predetermined voltage. After the pixel array is tested, the predetermined voltage is provided by the front-end circuit to disable the test circuit.
Abstract:
A wire reel assembly includes: a reel including a barrel having opposite first and second axial ends, and a first flange extending radially and outwardly from the first axial end of the barrel, the barrel being formed with at least one slot unit extending axially between the first and second axial ends; and a reel extension including an extension flange parallel to the first flange, and at least one inserting unit extending axially from the extension flange into the slot unit and slidable axially relative to the reel between first and second axial positions such that an axial distance between the extension flange and the first flange is increased when the inserting unit is moved from the first axial position to the second axial position.
Abstract:
A display device including a liquid crystal display (LCD) panel, a backlight module, and a photo-sensing device is provided. The backlight module is disposed below the LCD panel and is suitable for providing a light source. The photo-sensing device is built in the LCD panel and includes a plurality of photo-sensors having different illumination sensing capabilities. The backlight module modulates the output intensity of the light source according to the sensed result of one of the photo-sensors. Thereby, the display device can precisely modulate the intensity of the back light according to the intensity of ambient light so as to improve the contrast ratio and to reduce the power consumption.
Abstract:
An organic light emitting diode (OLED) display panel is provided. The OLED display panel includes a substrate, a conductive layer, an active matrix pixel array and several thin film transistors (TFTs). The conductive layer having several openings is disposed above the substrate. The active matrix pixel array having several pixels is disposed above the conductive layer. Each pixel has a display region and a non-display region. The display regions correspond to the openings. The TFTs are correspondingly disposed inside the pixels and correspondingly positioned inside the non-display regions. Each TFT includes a channel layer, a source, a drain and a gate. The channel layer is disposed above the conductive layer. The source and the drain are disposed above channel layer and respectively contact with the two opposite sides of the channel layer. The gate is disposed above the channel layer and positioned between the source and the drain.
Abstract:
An EEPROM includes a substrate, a first semiconductor layer and a second semiconductor layer formed on the substrate. The first semiconductor layer is isolated from the second semiconductor layer by a trench. A first source and a first drain are located at two opposing sides of the first semiconductor layer. A first dielectric layer is formed on the first semiconductor layer, and a first floating gate is formed on the first dielectric layer. A second source and a second drain are located at two opposing sides of the second semiconductor layer. A second dielectric layer is formed on the second semiconductor layer, and a second floating gate is formed on the second dielectric layer. The first floating gate and the second floating gate are electrically connected.
Abstract:
A package box includes front and rear walls connected respectively to front and rear edges of a bottom wall. Each of the front and rear walls has a connecting lateral edge opposite to an engaging lateral edge, and is formed with a holding hole adjacent to a top edge thereof. The connecting and engaging lateral edges of the front wall correspond respectively to the engaging and connecting lateral edges of the rear wall. Two opposite lateral walls are connected respectively to the connecting lateral edges of the front and rear walls. Each lateral wall has an engaging side opposite to the connecting lateral edge of the respective one of the front and rear walls, and is connected detachably to the engaging lateral edge of the other one of the front and rear walls. The bottom, front and rear walls, and the lateral walls cooperatively define an accommodating space thereamong.
Abstract:
A power control device includes a power coupler that includes a housing, a power input unit, a socket receptacle, and a control unit. The power input unit is mounted on the housing of the power coupler, and is connected electrically and removably to a commercial alternating current power source. The socket receptacle is mounted on the housing of the power coupler, and is adapted to be connected electrically and removably to an electrical appliance. The control unit is coupled between the power input unit and the socket receptacle, and is responsive to a wireless control signal for controlling electrical connection between the power input unit and the socket receptacle.
Abstract:
A fitting structure is provided for supply of gas and connectable between an air supply tube in the form of a hose or a plastic pipe and an air outlet of an air compressor and includes a fitting and a thermal insulation tube. The fitting includes a first coupling opening connectable with the air outlet of the air compressor and a second coupling opening connectable with the air supply tube. The thermal insulation tube has a first end part fixed inside the second coupling opening of the fitting and a second end part extending outside the second coupling opening such that a portion of the thermal insulation tube that extends outside the second coupling opening is received in the interior of the air supply tube. High-temperature air from the air compressor is conducted through the thermal insulation tube into the air supply tube without being directly applied to the fitting.
Abstract:
A display and the thin-film-transistor discharge method therefore are used for providing a dual-gate thin film transistor to drive the electroluminescent element to emit light. While the thin film transistor (TFT) is discharged, an electric field is formed between the top-gate and the bottom-gate. The electric field is for improving the electric discharge effect at the channel of the TFT, and the magnitude of the applied electric field corresponds to the magnitude of the pixel voltage.
Abstract:
A PCB includes an outer layer and an inner layer. An electronic component is mounted on the outer layer. The outer layer further defines a first pad, a second pad, a third pad, a fourth pad, and a number of via holes. The electrical performances of the first pad and the second pad are the same to that of the inner layer. The first pad and the second pad are conducted to the electronic component. The third pad and the fourth pad are respectively conducted to the first pad and the second pad through the electronic component. The electrical performances of the third pad and the fourth pad are different from that of the inner layer. The via holes are respectively electrically connected to the third pad and the fourth pad.