Near eye display modules provide immersive viewing for industry

High resolution micro-OLED displays and micro-LCDs make up the industrial near eye display (NED) modules now available from Review Display Systems (RDS).

The range of immersive NED modules feature high resolution, high brightness, high contrast and low power consumption, said the company.

NEDs are increasingly being used in wide range of industrial display systems such as inspection equipment, remote control systems, microscopes, electronic view finders, thermal imaging, medical diagnostic equipment and defence systems. 

The current line-up of NED modules available support a range of micro-OLED (organic light emitting diode) displays and micro-LCD (liquid crystal displays) ranging in screen size from 0.32 to 1.35 inch, with pixel resolutions ranging from 800 x 600 pixels up to 3552 x 3552 pixels. Brightness specifications are from 1800cd/m² up to 20,000cd/m². Modules in the range also feature MIPI and RGB interfaces.

The NED modules feature three different optical module types which include birdbath, pancake and waveguide designs to support different applications and usage. These modules differ in how they project the image from the display source to the user’s eye.

Birdbath optics consist of a curved mirror that reflects light from the display into the user’s line of sight. This optic has the advantage of being low-cost and lightweight. Although not the thinnest technology, this optic has excellent display performance and supports dioptre adjustment.

Pancake optics use a flat mirror to fold the light path from the display to the user’s view, creating a thin and compact design. Pancake optics use very high resolution and bright displays, which can increase cost and power consumption. 

Waveguide optics uses a thin transparent lightguide to transmit light from the display to the user’s eye through internal reflection. Although complex, waveguide optics can achieve a very slim and lightweight design.

Justin Coleman, RDS’s displays division manager said, “Although the consumer market for virtual and augmented reality is one of the fastest growing market segments for near eye displays, the continued design and development of near eye display technology is finding many new and potential industrial applications. Near eye display systems offer several key advantages over traditional full-size displays including extremely compact size, high portability and very low power consumption.”

Near eye display optics, which are also often used in wearable equipment, create a high resolution, large field of view display image for one or both eyes. Applications enable the human eye to perceive a virtual display image that appears much larger, at a greater distance, and in a highly compact physical environment.

Near eye display modules featuring micro-OLED and micro-LCD technology are now available from Review Display Systems. 

Established in 1982, RDS has experience supporting and supplying display and embedded hardware solutions. It represents leading manufacturers and supports a comprehensive range of display technologies, touch screen and embedded computing solutions. 

The company serves customers in a wide range of industry sectors including industrial control and instrumentation, medical devices, facilities management, marine, aerospace, point of information and process control. 

A strong commitment to environmental responsibility and quality is reinforced with accreditation to the latest internationally recognised quality standards including ISO14001, ISO9001-2015 and ISO13485:2016 for the design and manufacture of medical devices.

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