V. Designing an Enclosure for your LT3200
The LT3200 open frame display will provide best in class transparent display performance, but the enclosure design is a critical contributor to the appearance and operation of the full display assembly. We encourage our customers to be creative in designing their presentation configuration using the LT3200. To achieve optimum results, we recommend the following:
-Orientation: the display can be used in portrait, landscape or countertop (horizontal) mode. Note that the enclosure can be incorporated into an existing wall or table.
-Enclosure material: use materials structurally capable of supporting the weight of the display and its planned contents while providing an opaque enclosed space. Light leaks should be eliminated.
-Interior surface finish: it should be a uniform, high reflectance white. Use satin or matte finish white paint or a material with a white reflective body color. A gloss finish is not recommended unless it is part of a specific visual design. Use of a color other than white will reduce the efficiency of the display and will cause a color shift in the output of the AMLCD. Minimize, ideally eliminate, any dark colored surfaces in the interior finish of the enclosure. Note that there is almost no ultraviolet light emitted from the white LEDs employed in the LT3200, but the white light is sufficiently bright to cause potential photobleaching of materials susceptible to
-Enclosure dimensions: we suggest the horizontal and vertical dimensions be within a few inches of the perimeter dimensions of the front glass (17.9 x 29.9 inches, 455 x 760 mm). The LED lighting system is designed to illuminate a space roughly the rectangular size of the front glass. Items placed in an enclosure much larger than the glass will not necessarily be adequately lit. Regarding the depth of the enclosure, we recommend a depth no greater than about 15 inches (380 mm) for best visibility. You will find items placed closest to the inside surface of the AMLCD will have the best clarity.
-Thermal consideration: the display chassis can reach a temperature of 55°C (130°F) during normal operation at typical ambient room temperature (22°C, 72°F) due to heat dissipation from the LED illumination system. Depending on the thermal properties of the enclosure, this can result in enclosure temperatures above 30°C (86°F) that may be detrimental to some items to be demonstrated in the enclosure. While this will not be a problem for the LED illumination system, we recommend a properly ventilated design of the enclosed space if a somewhat elevated enclosure temperature poses an issue to the box contents. Since heat from the LEDs is dissipated primarily through the metal chassis, in designing your enclosure make certain to not hinder air flow in the vicinity of the chassis. No fan should be needed.
-Environment: the LT3200 display is intended to be used indoors at a typical indoor temperature range (10° to 30°C, although the operating range is 0° to 40°C). Positioning the display in direct sunlight or other very bright illumination sources is not recommended for best viewing performance. Do not use the LT3200 in an environment of condensing humidity.
-Placement of the Driver Box: We have provided sufficient length in the wiring bundle for the driver box to be as much as four feet from the display module. Be certain to protect and enclose the wire bundle and any other wiring, including the power brick, from customer access. Note that the LT3200 power switch is located in the Driver Box so be sure to provide access.
-Power Supply: the power brick is compatible with 100 to 240V input.
-The system is shipped from the factory with the LED power leads and the video cable disconnected from the driver box. These must be attached before operating the display. In addition, there are grounding wires in the LED and video wiring bundle that are to be connected to the driver box. More details are found in the next section of this document.
-The LT3200 is a component type open frame TFT LCD display intended to be installed into a final system assembly. Therefore the mechanical enclosure, electrical enclosure, EMC enclosure and mounting function must be evaluated in the final system assembly.
LT3200 Owner Manual 9 P a g e
