Abstract: A liquid crystal device includes a liquid crystal panel and a liquid crystal driver. The liquid crystal panel includes a segment electrode, a segment signal line connected to the segment electrode, and a segment signal line connected to the segment electrode. The liquid crystal driver includes a segment terminal to be connected to the segment signal line, a segment driving circuit that outputs a segment driving signal to the segment terminal, a segment terminal to be connected to the segment signal line, and an anomalous segment detection circuit that detects anomalous driving of the segment electrode based on a segment monitoring signal that is input to the segment terminal from the segment electrode via the segment signal line.

Abstract: A drive circuit of an electro-optical panel (10) is provided with a driving signal generation unit (240) that output a plurality of driving signals to the electro-optical panel (10), a control circuit (400) that outputs display image data indicating an image to be displayed in the electro-optical panel (10), a processing circuit (210) configured to generate input data to the driving signal generation unit (240) based on the display image data, and an error detection circuit (410) configured to detect an error in the input data.

Abstract: A liquid crystal device includes a liquid crystal panel and a liquid crystal driver. The liquid crystal panel includes a segment electrode, a segment signal line connected to the segment electrode, and a segment signal line connected to the segment electrode. The liquid crystal driver includes a segment terminal to be connected to the segment signal line, a segment driving circuit that outputs a segment driving signal to the segment terminal, a segment terminal to be connected to the segment signal line, and an anomalous segment detection circuit that detects anomalous driving of the segment electrode based on a segment monitoring signal that is input to the segment terminal from the segment electrode via the segment signal line.

Abstract: A liquid crystal device (300) includes a liquid crystal panel (200) and a liquid crystal driver (100). The liquid crystal panel (200) includes a segment electrode (ESD1), a segment signal line (LSD1) connected to the segment electrode (ESD1), and a segment signal line (LSD2) connected to the segment electrode (ESD1). The liquid crystal driver (100) includes a segment terminal (TSD1) to be connected to the segment signal line (LSD1), a segment driving circuit that outputs a segment driving signal to the segment terminal (TSD1), a segment terminal (TSD2) to be connected to the segment signal line (LSD2), and an anomalous segment detection circuit that detects anomalous driving of the segment electrode (ESD1) based on a segment monitoring signal that is input to the segment terminal (TSD2) from the segment electrode (ESD1) via the segment signal line (LSD2).

Abstract: A drive circuit 1000 is provided with an input terminal and an output terminal configured to be coupled to an external device 2000; a drive signal generation circuit 400 configured to use a synchronizing signal that is input from the external device 2000 via the input terminal to perform signal generation processing to generate a drive signal that drives an electro-optical panel 10; a state signal generation circuit 510 configured to generate a state signal indicating an operating state of the drive signal generation circuit 400; a return signal generation circuit 520 configured to generate a return signal obtained by superimposing the state signal on the synchronizing signal; and the output circuit 2000 configured to output the return signal from output terminals 581 and 582 to the external device 2000.

Abstract: A display driver (100) drives a liquid crystal panel (200) that is driven by a static drive method. The display driver (100) includes an interface circuit (110), a selection circuit (120), and a drive circuit (130). The interface circuit (110) receives instruction information and display data from the outside. The selection circuit (120) selects n pieces of selected duty ratio data, which are n pieces of duty ratio data of k pieces of duty ratio data, based on the instruction information. The drive circuit (130) selects output duty ratio data corresponding to a tone value indicated by the display data from the n pieces of selected duty ratio data, and performs PWM driving of the liquid crystal panel (200) by outputting a drive signal having a duty ratio indicated by the selected output duty ratio data.

Abstract: A liquid crystal driver (100) includes: a segment driving circuit (150) that outputs a segment driving signal (SGQ) for driving a segment electrode of a liquid crystal panel, a first segment terminal (TSD1) from which a segment driving signal (SGQ) is to be output to the segment electrode, a second segment terminal (TSD2) to which a segment monitoring signal (SMN), which is a monitoring signal from the segment electrode, is to be input, and an anomalous segment detection circuit (160) that detects anomalous driving of the segment electrode based on the segment monitoring signal (SMN).

Abstract: A display driver (100) drives a liquid crystal panel (200) that is driven by a static drive method. The display driver (100) includes an interface circuit (110), a selection circuit (120), and a drive circuit (130). The interface circuit (110) receives instruction information and display data from the outside. The selection circuit (120) selects n pieces of selected duty ratio data, which are n pieces of duty ratio data of k pieces of duty ratio data, based on the instruction information. The drive circuit (130) selects output duty ratio data corresponding to a tone value indicated by the display data from the n pieces of selected duty ratio data, and performs PWM driving of the liquid crystal panel (200) by outputting a drive signal having a duty ratio indicated by the selected output duty ratio data.

Abstract: A display driver (100) includes a drive circuit (130) that drives an electro-optical panel (200), a control circuit (110) that controls the drive circuit (130), an error detection circuit (115) that detects an error in the display driver (100), and a counter (125) that performs count processing with respect to information regarding the number of times of error detection in an operating period of the display driver (100). The control circuit performs control such that information regarding the accumulated number of times of detection of the error is stored in a nonvolatile memory that can retain storage contents even if power is not supplied, based on the information regarding the number of times of detection.

Abstract: A drive circuit 1000 is provided with an input terminal and an output terminal configured to be coupled to an external device 2000; a drive signal generation circuit 400 configured to use a synchronizing signal that is input from the external device 2000 via the input terminal to perform signal generation processing to generate a drive signal that drives an electro-optical panel 10; a state signal generation circuit 510 configured to generate a state signal indicating an operating state of the drive signal generation circuit 400; a return signal generation circuit 520 configured to generate a return signal obtained by superimposing the state signal on the synchronizing signal; and the output circuit 2000 configured to output the return signal from output terminals 581 and 582 to the external device 2000.

Abstract: A drive circuit of an electro-optical panel (10) is provided with a driving signal generation unit (240) that output a plurality of driving signals to the electro-optical panel (10), a control circuit (400) that outputs display image data indicating an image to be displayed in the electro-optical panel (10), a processing circuit (210) configured to generate input data to the driving signal generation unit (240) based on the display image data, and an error detection circuit (410) configured to detect an error in the input data.

Abstract: A liquid crystal device (300) includes a liquid crystal panel (200) and a liquid crystal driver (100). The liquid crystal panel (200) includes a segment electrode (ESD1), a segment signal line (LSD1) connected to the segment electrode (ESD1), and a segment signal line (LSD2) connected to the segment electrode (ESD1). The liquid crystal driver (100) includes a segment terminal (TSD1) to be connected to the segment signal line (LSD1), a segment driving circuit that outputs a segment driving signal to the segment terminal (TSD1), a segment terminal (TSD2) to be connected to the segment signal line (LSD2), and an anomalous segment detection circuit that detects anomalous driving of the segment electrode (ESD1) based on a segment monitoring signal that is input to the segment terminal (TSD2) from the segment electrode (ESD1) via the segment signal line (LSD2).

Abstract: A liquid crystal driver (100) includes: a segment driving circuit (150) that outputs a segment driving signal (SGQ) for driving a segment electrode of a liquid crystal panel, a first segment terminal (TSD1) from which a segment driving signal (SGQ) is to be output to the segment electrode, a second segment terminal (TSD2) to which a segment monitoring signal (SMN), which is a monitoring signal from the segment electrode, is to be input, and an anomalous segment detection circuit (160) that detects anomalous driving of the segment electrode based on the segment monitoring signal (SMN).

Abstract: A display driver (100) includes a drive circuit (130) that drives an electro-optical panel (200), a control circuit (110) that controls the drive circuit (130), an error detection circuit (115) that detects an error in the display driver (100), and a counter (125) that performs count processing with respect to information regarding the number of times of error detection in an operating period of the display driver (100). The control circuit performs control such that information regarding the accumulated number of times of detection of the error is stored in a nonvolatile memory that can retain storage contents even if power is not supplied, based on the information regarding the number of times of detection.

Abstract: A circuit device includes an interface unit that receives pieces of display data RD, GD, and BD, a data processing unit that performs data processing on the pieces of display data RD, GD, and BD, and a drive unit that drives a display panel based on display data from the data processing unit. The data processing unit performs data processing in which the display data RD that has been input to a first color component input channel of the interface unit is set to a first color component channel, a second color component channel, and a third color component channel of the same pixel. The drive unit drives the display panel based on the display data set in the first color component channel, the second color component channel, and the third color component channel.

Abstract: A circuit device includes an interface unit that receives pieces of display data RD, GD, and BD, a data processing unit that performs data processing on the pieces of display data RD, GD, and BD, and a drive unit that drives a display panel based on display data from the data processing unit. The data processing unit performs data processing in which the display data RD that has been input to a first color component input channel of the interface unit is set to a first color component channel, a second color component channel, and a third color component channel of the same pixel. The drive unit drives the display panel based on the display data set in the first color component channel, the second color component channel, and the third color component channel.

Abstract: A driver, an electro-optical device, and an electronic device are provided with which a rise in a ground line voltage due to a discharge can be suppressed. The driver includes a voltage generating circuit 100 that generates a first voltage VA1 and a second voltage VA2 for driving a display panel, outputs the first voltage VA1 to a first node NA1, and outputs the second voltage VA2 to a second node NA2, and a discharge circuit 140 that performs a discharge operation if the voltage generating circuit 100 is deactivated. The discharge circuit 140 performs a first discharge operation of discharging the first node NA1, and thereafter performs a second discharge operation of discharging the second node NA2.

Abstract: A driver, an electro-optical device, and an electronic device are provided with which a rise in a ground line voltage due to a discharge can be suppressed. The driver includes a voltage generating circuit 100 that generates a first voltage VA1 and a second voltage VA2 for driving a display panel, outputs the first voltage VA1 to a first node NA1, and outputs the second voltage VA2 to a second node NA2, and a discharge circuit 140 that performs a discharge operation if the voltage generating circuit 100 is deactivated. The discharge circuit 140 performs a first discharge operation of discharging the first node NA1, and thereafter performs a second discharge operation of discharging the second node NA2.

Abstract: There is disclosed a liquid crystal driving device which improves crosstalk using the function of adjusting an interlaced line number of common electrodes and the function of adjusting a polarity reversion line number.

Abstract: There is disclosed a liquid crystal driving device which improves crosstalk using the function of adjusting an interlaced line number of common electrodes and the function of adjusting a polarity reversion line number.