Abstract: An electro-optical device includes two substrates (a first substrate and a second substrate) respectively having ends overlapped with each other and coupled to an electro-optical panel. Other ends of the two substrates respectively serve as a first terminal region and a second terminal region. The second substrate includes a third extended portion extending linearly to overlap with a first extended portion of the first substrate in a thickness direction, and a fourth extended portion extending to a position different from a position of a second extended portion of the first substrate to allow the first terminal region and the second terminal region to be away from each other in a direction intersecting with an extending direction of the third extended portion and to not overlap with each other in the thickness direction.

Abstract: Precharge thinning drive is performed without causing rotation noise and without requiring complicated control. A signal generation circuit that supplies an image signal with a magnitude in accordance with a tone to be displayed to pixels via data lines in a tone display period and supplies a precharge voltage to the data lines in a precharge period before the tone display period in one horizontal scanning period, a signal distribution circuit that is provided between the signal generation circuit and the data lines and selects the data lines, and a control circuit that controls the signal distribution circuit such that a predetermined number of data lines are alternately not selected in the precharge period are provided, and the control circuit controls the signal distribution circuit such that non-selection of the data line is different every predetermined horizontal scanning period.

Abstract: An increase in power consumption is suppressed even in a case of applying a precharge signal to all data lines at the same time. A voltage output selection circuit that is connected to a data line drive circuit in an input stage and is connected to data lines in an output stage is provided. The voltage output selection circuit selects connection and non-connection between the data lines and the data line drive circuit when a precharge voltage is applied. A control circuit controls the voltage output selection circuit such that connection between the data lines and the data line drive circuit is selected in a first region in which an image is displayed, and non-connection between the data lines and the data line drive circuit is selected in a second region covered with a light shielding layer.

Abstract: An electro-optical device includes a first flexible board, a second flexible board and an integrated circuit mounted on the first flexible board, the flexible board is connected between an electro-optical panel and the second flexible board and includes a single-layered wiring layer, the second flexible board is connected to an external apparatus and includes a multilayered wiring layer, the single-layered wiring layer includes a first video signal wiring and a first ground wiring, a first wiring layer of the multilayered wiring layer includes a second video signal wiring connected to the first video signal wiring, a second wiring layer of the multilayered wiring layer includes a second ground wiring which is connected to the first ground wiring and is formed at a position opposite to the second video signal wiring.

Abstract: An electrooptical device includes: a first signal line group; a second signal line group; a signal distribution circuit that executes a distribution operation of distributing first data signals to signal lines in the first signal line group and distributing second data signals to signal lines in the second signal line group; a first supply circuit that supplies the first data signals to the signal distribution circuit and supplies first selection signals for controlling distribution of the first data signals to the signal lines in the first signal line group; a second supply circuit that supplies the second data signals to the signal distribution circuit and supplies second selection signals for controlling distribution of the second data signals to the signal lines in the second signal line group; and a selection circuit that controls output of the first selection signals and the second selection signals to the signal distribution circuit.

Abstract: An image signal with a magnitude in accordance with a tone to be displayed is supplied to pixels via data lines in a tone display period, and a precharge voltage including a low-potential second voltage and a high-potential second voltage is supplied to the data lines in a precharge period before the tone display period. Control is made such that a first pattern in which the low-potential second voltage and the high-potential second voltage are sequentially output in the precharge period in one horizontal scanning period and a second pattern in which only the high-potential second voltage is output in the precharge period in one horizontal scanning period are switched in accordance with a selected scanning line. Also, control is made such that a supply period of the high-potential second voltage in the second pattern is shorter than a supply period of the high-potential second voltage in the first pattern.

Abstract: A data line driving circuit supplies an image signal having an amplitude according to gradation to be displayed to pixels via data lines in a gradation display period, and supplies a precharge voltage including a low-potential second voltage and a high-potential second voltage to the data lines in a precharge period before the gradation display period. A polarity inversion unit inverts polarity of the voltage applied to the pixel between positive polarity and negative polarity for each vertical scanning period. A control circuit performs control such that a supply period of a precharge voltage as a high-potential second voltage in the negative polarity is shorter than a supply period of a precharge voltage as a high-potential second voltage in the positive polarity.

Abstract: Provided an electro-optical device including: an electro-optical panel; a flexible board connected to the electro-optical panel; and an integrated circuit adhered on the flexible board, in which the flexible board includes a wiring, a first connection terminal group connected to control signal terminals of the integrated circuit, and a second connection terminal group including power supply connection terminals connected to a power supply terminal of the integrated circuit, in which the flexible board includes planar patterns connected to the power supply connection terminals, and in which the integrated circuit includes a wiring layer connected to the power supply connection terminals and facing the planar patterns.

Abstract: An electro-optical device includes a first flexible board, a second flexible board and an integrated circuit mounted on the first flexible board, the flexible board is connected between an electro-optical panel and the second flexible board and includes a single-layered wiring layer, the second flexible board is connected to an external apparatus and includes a multilayered wiring layer, the single-layered wiring layer includes a first video signal wiring and a first ground wiring, a first wiring layer of the multilayered wiring layer includes a second video signal wiring connected to the first video signal wiring, a second wiring layer of the multilayered wiring layer includes a second ground wiring which is connected to the first ground wiring and is formed at a position opposite to the second video signal wiring.

Abstract: An electro-optical device includes a substrate where a pixel area having a first pixel group and a second pixel group is provided, a first terminal group that is arranged in a peripheral portion of the substrate and in which a first terminal to which a video signal corresponding to the first pixel group is supplied is arranged in a first direction, a second terminal group that is arranged in the peripheral portion of the substrate and in which a second terminal to which a video signal corresponding to the second pixel group is supplied is arranged in the first direction, in which the length of the pixel area in the first direction is smaller than the combined length of the length of the first terminal group in the first direction and the length of the second terminal group in the first direction.

Abstract: An electrooptical device includes: a first signal line group; a second signal line group; a signal distribution circuit that executes a distribution operation of distributing first data signals to signal lines in the first signal line group and distributing second data signals to signal lines in the second signal line group; a first supply circuit that supplies the first data signals to the signal distribution circuit and supplies first selection signals for controlling distribution of the first data signals to the signal lines in the first signal line group; a second supply circuit that supplies the second data signals to the signal distribution circuit and supplies second selection signals for controlling distribution of the second data signals to the signal lines in the second signal line group; and a selection circuit that controls output of the first selection signals and the second selection signals to the signal distribution circuit.

Abstract: An electro-optical device includes a first substrate, a first terminal group in which a first video signal input terminal and a first non-video signal input terminal are arranged in a peripheral portion of the first substrate in a first direction, a second terminal group in which a second video signal input terminal and a second non-video signal input terminal are arranged in a second direction different from the first direction with respect to the first terminal group and are arranged in the peripheral portion of the first substrate in the first direction, and a first wiring that connects the first non-video signal input terminal and the second non-video signal input terminal.

Abstract: An image signal with a magnitude in accordance with a tone to be displayed is supplied to pixels via data lines in a tone display period, and a precharge voltage including a low-potential second voltage and a high-potential second voltage is supplied to the data lines in a precharge period before the tone display period. Control is made such that a first pattern in which the low-potential second voltage and the high-potential second voltage are sequentially output in the precharge period in one horizontal scanning period and a second pattern in which only the high-potential second voltage is output in the precharge period in one horizontal scanning period are switched in accordance with a selected scanning line. Also, control is made such that a supply period of the high-potential second voltage in the second pattern is shorter than a supply period of the high-potential second voltage in the first pattern.

Abstract: In a case of applying a precharge signal to all data lines at the same time. A voltage output selection circuit that is connected to a data line drive circuit in an input stage and is connected to data lines in an output stage is provided. The voltage output selection circuit selects connection and non-connection between the data lines and the data line drive circuit when a precharge voltage is applied. A control circuit controls the voltage output selection circuit such that connection between the data lines and the data line drive circuit is selected in a first region in which an image is displayed and non-connection between the data lines and the data line drive circuit is selected in a second region covered with a light shielding layer.

Abstract: Precharge thinning drive is performed without causing rotation noise and without requiring complicated control. A signal generation circuit that supplies an image signal with a magnitude in accordance with a tone to be displayed to pixels via data lines in a tone display period and supplies a precharge voltage to the data lines in a precharge period before the tone display period in one horizontal scanning period, a signal distribution circuit that is provided between the signal generation circuit and the data lines and selects the data lines, and a control circuit that controls the signal distribution circuit such that a predetermined number of data lines are alternately not selected in the precharge period are provided, and the control circuit controls the signal distribution circuit such that non-selection of the data line is different every predetermined horizontal scanning period.

Abstract: In an electro-optical device including pixels 48, one frame image includes a first field image and a second field image, in a scanning signal forming the first field image, a clock signal CLY switches from a high potential to a low potential during the selection state period, and in a scanning signal forming the second field image, the clock signal CLY switches from a low potential to a high potential during the selection state period. Since the switching direction of the clock signal CLY is opposite between the first field image and the second field image, it is possible to cancel out influence of the clock signal switching in the first field image and the second field image, and the image quality improves.