Abstract:
A pad open structure, after an insulation layer is installed at the up of the pad, the insulation layer forms plural pad opens by lithography. The insulation layer is exposed to the surface of the pad by the pad opens. The gold bump forms the upper part of the insulation layer, which forms an electric connection through the pad opens to the pad. By way of this, when the gold bump is formed at the surface of the pad opens and the surrounding insulation layer, reducing the affection produced by a single pad open that hollows the surface of the gold bump such that the gold bump has an extra flat surface.
Abstract:
A voltage variation processing mechanism built-in a microcontroller aims to transmit signals of a low voltage detector or a voltage detector monitor to an address generator, a memory and an instruction register. When the low voltage detector or the voltage detector monitor is activated, the microcontroller is frozen until system voltage is stabilized, then a next program counter starts operation. Therefore system reset frequency may be reduced and system stability is enhanced.
Abstract:
The present application provides a display driving circuit and a method for testing drivers thereof, which is applied to a control circuit for testing a first and a second driver connected in series. The control circuit transmits an enable signal, a first voltage level, and a second voltage level to the first driver for comparing a first returned voltage level and a second returned voltage level of the first driver with a first preset parameter and a second preset parameter. When the first returned voltage level is not equal to the first preset parameter or the second returned voltage level is not equal to the second preset parameter, the control circuit stops testing. Thereby, by using the voltage levels transmitted between the control circuit and the drivers, built-in self-tests may be performed, which simplifies the self-tests of the display driving circuit and no external testing device is required.
Abstract:
The present application provides a driver for a display panel, the driver comprises at least one driving circuit, generating a plurality of Type-1 driving signals and a plurality of Type-2 driving signals for driving a plurality of pixels on display panel. The pixels include a plurality of first pixels and a plurality of second pixels adjacent to the first pixels. Each pixel includes a first display element, a second display element, a third display element. The Type-1 driving signals drive the first, second, and third display elements of the first pixels. The Type-2 driving signals drive the first, second, and third display elements of the second pixels. A first pulse of the Type-1 driving signals and a second pulse of the Type-2 driving signals are located at different time segments. By adopting the driver according to the present application, current concentration may be avoided and displaying quality may be improved.
Abstract:
The present invention relates to a touch detecting circuit, which comprises a touch driving circuit and a touch sensing circuit. The touch driving circuit generates a touch driving signal and provides it to at least one common electrode of a panel. The touch sensing circuit receives a plurality of sensing signals via a plurality of source lines or/and a plurality of gate lines of the panel for detecting the touch location. The sensing signals are generated corresponding to the touch driving signal. In addition, the touch driving circuit may provide the touch driving signal to the source lines. The touch sensing circuit receives the sensing signals via the gate lines for detecting the touch location.
Abstract:
The invention relates to a source driver and a composite level shifter. The source driver comprises a data buffer circuit, a plurality of level shifters and a plurality of driving circuits. The data buffer circuit receives and registers a plurality of pixel data during a driving period. The level shifters convert the voltage levels of the pixel data registered in the data buffer circuit during the driving period. The driving circuits generate a plurality of source signals according to the converted pixel data during driving period. The data buffer circuit may comprise a plurality of composite level shifters for converting the voltage levels of the pixel data, and latching the converted pixel data.
Abstract:
The present invention relates to a touch detecting circuit, which comprises a touch driving circuit and a touch sensing circuit. The touch driving circuit generates a touch driving signal and provides it to at least one common electrode of a panel. The touch sensing circuit receives a plurality of sensing signals via a plurality of source lines or/and a plurality of gate lines of the panel for detecting the touch location. The sensing signals are generated corresponding to the touch driving signal. In addition, the touch driving circuit may provide the touch driving signal to the source lines. The touch sensing circuit receives the sensing signals via the gate lines for detecting the touch location.
Abstract:
The present invention relates to a fan control system, which comprises a controller and a detection circuit. The controller controls a fan. The detection circuit detects at least one state of the fan control system, and generates a confirmation signal according to the at least one state. The confirmation signal represents the state of the fan control system.
Abstract:
The present invention provides a flow guiding structure of chip, which comprises at least one flow guiding member disposed on a surface of a chip and adjacent to a plurality of connecting bumps disposed on the surface of the chip. When the chip is disposed on a board member, the at least one flow guiding member may guide the conductive medium on the surface of the chip to flow toward the connecting bumps and drive a plurality of conductive particles of the conductive medium to move toward the connecting bumps and thus increasing the number of the conductive particles on the surfaces of the connecting bumps. Alternatively, the flow guiding member may retard the flow of the conductive medium for avoiding the conductive particles from leaving the surfaces of the connecting bumps and thus preventing reduction of the number of the conductive particles on the surfaces of the connecting bumps.
Abstract:
The present invention discloses a lead structure of the circuit, which comprises a first lead and a second lead. The first lead includes a first bump connecting part and a first lead segment. The first lead segment is connected to the first bump connecting part. The width of the first lead segment is smaller than the width of the first bump connecting part. The second lead is adjacent to the first lead and there is a lead gap therebetween. The second lead also includes a second bump connecting part and a first lead segment. The first lead segment of the second lead is connected to the second bump connecting part. The second bump connecting part and the first bump connecting part are arranged staggeredly. The second bump connecting part is adjacent to the first lead segment of the first lead.