Abstract: A touch panel device (11) includes a panel main body (21) including a plurality of first electrodes (X) extending parallel to one another and a plurality of second electrodes (Y) intersecting with the first electrodes (X), and a detection section (31). The detection section (31) includes a transmission section (33) for sequentially applying a driving signal to the first electrodes (X), and a current-voltage conversion section (35) configured to scan the second electrodes (Y) and convert a current flowing through the second electrode (Y) to a voltage signal, an AD conversion section (36) configured to sample the voltage signal and convert it to digital data, and a touch determination section (37) for determining a touch position from the converted digital data.

Abstract: A touch panel device (11) includes a panel main body (21) including a plurality of first electrodes (X) extending parallel to one another and a plurality of second electrodes (Y) intersecting with the first electrodes (X), and a detection section (31). The detection section (31) includes a transmission section (33) for sequentially applying a driving signal to the first electrodes (X), and a current-voltage conversion section (35) configured to scan the second electrodes (Y) and convert a current flowing through the second electrode (Y) to a voltage signal, an AD conversion section (36) configured to sample the voltage signal and convert it to digital data, and a touch determination section (37) for determining a touch position from the converted digital data.

Abstract: A liquid crystal display device includes: a liquid crystal display unit that displays, for each of frames, an image based on an input image signal; a drive unit that applies a voltage based on the input image signal to pixels of the liquid crystal display unit; and a control unit that controls an amplitude of the voltage applied to the pixels. The drive unit applies, in one of the frames, a voltage of the same polarity to the pixels connected to one of the source signal lines. The control unit includes: a temperature-information acquiring unit that acquires temperature information of the drive unit; and a filter unit that acquires high-frequency and low-frequency components of the input image signal in a substantial extending direction of the source signal lines. The control unit controls the amplitude of the applied voltage using the temperature information and an output value of the high-frequency component.

Abstract: A semiconductor device has circuit patterns formed on upper and lower surfaces of a laminated board with both surfaces lined with copper and interconnected by through holes, an IC chip mounted on the upper pattern, and external connection terminals mounted on the lower pattern, the external connection terminals comprising copper core bumps. According to a method of manufacturing such a semiconductor device, the same etching process as pattern etching for forming the circuit pattern are effected in bump forming regions on the circuit pattern formed by the resist pattern.