Abstract: A printing apparatus comprising a printing head including a plurality of nozzles, a correction value setting unit configured to set a correction value, a printing data generation unit configured to correct image data and a printing control unit configured to cause to print a first region and a second region on, based on the image data after correction, wherein the printing control unit causes to print one of the first raster lines with a predetermined number of the nozzles and to print one second raster line with a number, greater than the predetermined number, of the nozzles, and the correction value setting unit sets the correction value applied to the second raster line and the correction value applied to some of the first raster lines, in accordance with a printing condition that changes a concentration difference of the second raster line from the first raster lines.

Abstract: An image processing method includes a correction density setting step, a pixel area discrimination step for extracting, based on image data, an edge pixel area including an edge pixel constituting a contour of a printing image, and discriminating an inner pixel area surrounded by the edge pixel area and the edge pixel area, a printing density setting step for setting a printing density of the inner pixel area as a correction density and a printing density of the edge pixel area as a printing density different from the correction density when the correction density is equal to or greater than a predetermined density threshold value, and setting the printing density of the inner pixel area and the printing density of the edge pixel area as the correction density when the correction density is less than the predetermined density threshold value, and a printing data generation step.

Abstract: An image processing method includes a correction density setting step, a pixel area discrimination step for extracting, based on image data, an edge pixel area including an edge pixel constituting a contour of a printing image, and discriminating an inner pixel area surrounded by the edge pixel area and the edge pixel area, a printing density setting step for setting a printing density of the inner pixel area as a correction density and a printing density of the edge pixel area as a printing density different from the correction density when the correction density is equal to or greater than a predetermined density threshold value, and setting the printing density of the inner pixel area and the printing density of the edge pixel area as the correction density when the correction density is less than the predetermined density threshold value, and a printing data generation step.

Abstract: An optical device includes a first substrate, a second substrate, a first transmitting portion, N light-emitting portions, and a light-receiving portion. The first transmitting portion is disposed in the first substrate. The N light-emitting portions are disposed in the first substrate, and the N is an integer of 2 or more. The light-receiving portion is configured to receive light passing through the first transmitting portion and is disposed in the second substrate.

Abstract: A detecting device includes a pyroelectric element that generates charge by a pyroelectric effect in a first detection terminal and a second detection terminal, a chopper amplifier circuit that generates an amplified signal in response to the charge generated in the first detection terminal and the second detection terminal by chopping, and an initialization switch that controls electrical connection between the second detection terminal and a power source for generating an initialized voltage, and the initialization switch is turned on before a start of an amplification operation by the amplifier circuit and is off during the amplification operation.

Abstract: An optical device includes a first substrate, a second substrate, a first transmitting portion, N light-emitting portions, and a light-receiving portion. The first transmitting portion is disposed in the first substrate. The N light-emitting portions are disposed in the first substrate, and the N is an integer of 2 or more. The light-receiving portion is configured to receive light passing through the first transmitting portion and is disposed in the second substrate.

Abstract: A high-performance optical device is provided. An optical device includes a first transmitting portion that is disposed at the center of a predetermined area in a first substrate, a light-receiving portion that receives light passing through the first transmitting portion, N light-emitting portions (N is an integer of 2 or more) that are disposed around the first transmitting portion in the predetermined area, and a control circuit that controls the light-emitting portions. The control circuit is functionally divided into N control portions, namely, first to N-th control portions. The N control portions are disposed in areas overlapping the N light-emitting portions, respectively, when viewed from above. The optical device can reduce noise light and achieve a high S/N ratio, and also the sensitivity of the optical device can be improved.

Abstract: A detecting device includes a pyroelectric element that generates charge by a pyroelectric effect in a first detection terminal and a second detection terminal, a chopper amplifier circuit that generates an amplified signal in response to the charge generated in the first detection terminal and the second detection terminal by chopping, and an initialization switch that controls electrical connection between the second detection terminal and a power source for generating an initialized voltage, and the initialization switch is turned on before a start of an amplification operation by the amplifier circuit and is off during the amplification operation.

Abstract: A light emitting apparatus includes: a first transistor having a first end a second end, and a first control electrode; a light emitting device having a first electrode and a second electrode; a second transistor having a third end connected to the first end and a fourth end connected to the first electrode; a third transistor having a fifth end connected to the first electrode and a sixth end connected to an first power supply line; a fourth transistor having a seventh end connected to the first control electrode and a eighth end connected to the first end; a capacitive device which has a third electrode connected to first control electrode and a fourth electrode; and a fifth transistor having a ninth end connected to the fourth electrode and a tenth end connected to a data line.

Abstract: A high-performance optical device is provided. An optical device includes a first transmitting portion that is disposed at the center of a predetermined area in a first substrate, a light-receiving portion that receives light passing through the first transmitting portion, N light-emitting portions (N is an integer of 2 or more) that are disposed around the first transmitting portion in the predetermined area, and a control circuit that controls the light-emitting portions. The control circuit is functionally divided into N control portions, namely, first to N-th control portions. The N control portions are disposed in areas overlapping the N light-emitting portions, respectively, when viewed from above. The optical device can reduce noise light and achieve a high S/N ratio, and also the sensitivity of the optical device can be improved.

Abstract: A light emitting apparatus includes: a first transistor having a first end a second end, and a first control electrode; a light emitting device having a first electrode and a second electrode; a second transistor having a third end connected to the first end and a fourth end connected to the first electrode; a third transistor having a fifth end connected to the first electrode and a sixth end connected to an first power supply line; a fourth transistor having a seventh end connected to the first control electrode and a eighth end connected to the first end; a capacitive device which has a third electrode connected to first control electrode and a fourth electrode; and a fifth transistor having a ninth end connected to the fourth electrode and a tenth end connected to a data line.

Abstract: A light emitting apparatus includes a pixel circuit and a driving circuit which drives the pixel circuit. The pixel circuit includes: a driving transistor which generates a driving current; a light emitting device that determines gradation depending on the driving current; a light emission control transistor; a discharge transistor; a capacitor device; and a first switching device interposed between a gate and a drain of the driving transistor.

Abstract: A light emitting apparatus includes a pixel circuit and a driving circuit which drives the pixel circuit. The pixel circuit includes: a driving transistor which generates a driving current; a light emitting device that determines gradation depending on the driving current; a light emission control transistor; a discharge transistor; a capacitor device; and a first switching device interposed between a gate and a drain of the driving transistor.