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Itasca, IL, United States

NEC Display Solutions is a manufacturer of computer monitors and large-screen public-information displays, and has sold and marketed products under the NEC brand globally for more than twenty years. The company sells display products to the consumer, business, professional , digital signage and medical markets. The company became a wholly owned subsidiary of Japan-based NEC Corporation on March 31, 2005. Prior to that date, the company was known as NEC/Mitsubishi, a 50/50 joint venture between NEC Corporation and Mitsubishi Electric that began in 2000, and sold display products under both the NEC and Mitsubishi brands. The company, which is no longer affiliated with Mitsubishi, currently sells and markets products under the NEC brand only. Wikipedia.


Patent
NEC Display Solutions | Date: 2014-12-22

A projector in an illumination optical system includes a laser light source, a synchronization signal processor that converts synchronization signals that are synchronized with video signals input from outside the projector into video signals to be used inside the projector, an LD driver that controls a lighting state of the laser light source according to the synchronization signals output from the synchronization signal processor, an LED (Light Emitting Diode) light source, an LED driver that controls a lighting state of the LED light source according to the synchronization signals output from the synchronization signal processor, a rotational state detector that detects a rotational state of a phosphor wheel, and a phosphor wheel driver that, based on a detected result of the rotational state detector, controls the rotational state of the phosphor wheel.


Patent
NEC Display Solutions | Date: 2013-09-24

This electronic device includes connector to which an external device is connected via a communication cable, controller, and output unit. Connector includes at least first and second pins. A predetermined voltage is supplied from the external device to the first pin. Controller includes a communication unit to which a signal is input from the external device via a pin other than the first and second pins of connector, and outputs, when the communication unit is in an activated state, a first signal indicating the activated state. Output unit outputs, when the first signal has not been output, a detection signal indicating that a connection has not been established with the external device to the external device via the second pin.


A projection image display apparatus that enlarges and displays an image includes a case, a laser light source, a cooling mechanism that includes a component that produces vibration during an operation, a diffuser that diffuses light emitted from the laser light source, optics that shape the light that is diffused by the diffuser to light having a uniform luminance distribution and a rectangular cross-section, and an optical modulation element that modulates the light shaped by the optics.


Patent
NEC Display Solutions | Date: 2014-08-06

An image display method implemented in a projector that includes first to third display elements each of which spatially modulates incident light to display an image, synthesizes the images displayed by the first to third display elements, and projects the synthesized image.


A gradation correction map generating unit generates a gradation correction map based on a brightness unevenness map, a rotation unevenness map, and a second gamma characteristic. The brightness unevenness map indicates a correspondence relation between a plurality of positions in a screen of a display unit, and uncorrected brightness values, the uncorrected brightness values being brightness values at time of performing no correction when the display unit is installed at a predetermined angle. The rotation unevenness map indicates a correspondence relation between the plurality of positions or other plurality of positions, and differences in brightness values corresponding to a rotation angle of the display unit. The second gamma characteristic indicates a correspondence relation between a brightness value at a specific position in the screen, and a gradation of an image signal.

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