摘要:
The present invention relates to a serial-parallel conversion circuit of a display device.First latch circuits for sampling and latching a serial signal in accordance with sampling pulses outputted from a shift register (31) are provided in association with stages of the shift register (31). In addition, second latch circuits for latching signals outputted from the first latch circuits are provided in association with portions of the stages of the shift register (31). In this case, of all the stages of the shift register (31), the number of stages associated with the second latch circuits is less than the total number of stages of the shift register by two or more.
摘要:
A readily-mountable low-cost active matrix display apparatus with a setup function is provided. A serial interface circuit 20 and setup circuits 16 are each formed of TFT elements on a liquid crystal panel 11. The serial interface circuit 20 performs serial-parallel conversion on a setup control signal 17 serially inputted via setup terminals 15. The setup circuits 16 change the states of signals flowing in the liquid crystal panel 11 in accordance with signals outputted in parallel from the serial interface circuit 20. Thus, it is possible to change the potential, timing, etc., of signals inputted to or outputted from any peripheral circuits formed on the liquid crystal panel 11 or any peripheral circuits included in a semiconductor chip mounted on the surface of the liquid crystal panel 11.
摘要:
The present invention relates to a serial-parallel conversion circuit of a display device.First latch circuits for sampling and latching a serial signal in accordance with sampling pulses outputted from a shift register (31) are provided in association with stages of the shift register (31). In addition, second latch circuits for latching signals outputted from the first latch circuits are provided in association with portions of the stages of the shift register (31). In this case, of all the stages of the shift register (31), the number of stages associated with the second latch circuits is less than the total number of stages of the shift register by two or more.
摘要:
A timing signal generating device for a matrix-type display apparatus is disclosed, conducive to reduction of power consumption, the matrix-type display apparatus including the timing signal generating device, and a driving method thereof. In at least one embodiment, a timing signal generating apparatus provided in an active-matrix liquid crystal display apparatus includes a horizontal direction counter and a vertical direction counter for counting a clock number; and a horizontal counter cessation circuit and a vertical counter cessation circuit for stopping the horizontal direction counter and the vertical direction counter at a predetermined timing. With this structure, at least one embodiment of the present invention achieves reduction in power consumption in the liquid crystal display apparatus.
摘要:
A shift register is provided with a shift register section composed of a plurality of stages of flip-flops that operate in synchronization with a clock signal, and level shifters for boosting a start signal lower than a driving voltage and for applying the same to both ends of the shift register section, and the shift register is capable of switching the shift direction in accordance with the switching signal. The foregoing level shifters are current-driving-type level shifters that can operate even in the case where the transistor characteristics are inferior or in the case of fast operations, and that can carry out level shifting even with a start signal having a small amplitude. Furthermore, the foregoing level shifters are provided at both ends of the shift register section, respectively, and one of the same stops operating in accordance with a switching signal, so that consumed power should decrease. Consequently, there can be provided a shift register that is capable of shifting in two directions, that can normally operate even with an input signal having a small amplitude, and that therefore consumes less electric power.
摘要:
A shift register is provided with a shift register section composed of a plurality of stages of flip-flops that operate in synchronization with a clock signal, and level shifters for boosting a start signal lower than a driving voltage and for applying the same to both ends of the shift register section, and the shift register is capable of switching the shift direction in accordance with the switching signal. The foregoing level shifters are current-driving-type level shifters that can operate even in the case where the transistor characteristics are inferior or in the case of fast operations, and that can carry out level shifting even with a start signal having a small amplitude. Furthermore, the foregoing level shifters are provided at both ends of the shift register section, respectively, and one of the same stops operating in accordance with a switching signal, so that consumed power should decrease. Consequently, there can be provided a shift register that is capable of shifting in two directions, that can normally operate even with an input signal having a small amplitude, and that therefore consumes less electric power.
摘要:
A method for authentication. A computer obtains a random number R generated by a hardware token. The computer forms and returns to the hardware token a signature Ck′(R) formed using the random number R with a computer secret key Ck′. The computer receiving from the hardware token authentication of the signature Ck′(R) that is performed by the hardware token using a computer public key Ck stored in the hardware token.
摘要:
A plurality of scanning signal lines GLn divided into groups, and each group is made up of three scanning signal lines GLnR, GLnG and GLnB, and a plurality of pixels are divided into pixel blocks, and each pixel block is made up of three pixels PR (n, m), PG (n, m) and PB (n, m) respectively connected to the scanning signal lines GLnR, GLnG and GLnB. These pixels PR (n, m), PG (n, m) and PB (n, m) are connected to a common data signal line SLm. To the scanning signal lines GLnR, GLnG, GLnB, scanning pulses are sequentially outputted to the scanning signal lines GLnR, GLnG and GLnB from shift registers SRnR, SRnG and SRnB, and video signals for R, G and B are outputted to the data signal line SLm from a driver IC by time division.
摘要:
A communication relay apparatus, information management system, and control method and program therefor. The communication relay apparatus includes several communication ports, and that includes a communication relay section, a buffer, a control signal transmitting section, a bandwidth information acquiring section, and a transmission interval control section.
摘要:
A light shield (204) for blocking light traveling toward a PIN photodiode (413) from a glass substrate (314) side is formed of a conductive material, and a reference electric potential (Vr−nVoc) equal to that of a cathode of the PIN photodiode (413) is applied to the light shield (204) from a power supply circuit (266). Thus, inductive noise for a photoelectric conversion device used for an ambient light sensor is further reduced in a display device.