503-675-6464|info@reachtech.com

Do you have any design suggestions for enhancing ESD immunity?

To provide added ESD protection to the SLCD43 display modules, we use 3M 1170 conductive tape to connect the metal frame of the LCD panel to the digital ground (equals ESD or chassis ground) on the SLCD43 controller board. The controller board has grounded mounting holes that need a solid connection to chassis/Earth/ ESD ground. This approach provides approximately 4KV ESD protection. However, from a regulatory point of view, ESD testing has to be done with the display module in the customer’s enclosure with a system ground. If you are trying for high ESD immunity, the bezel “should” be metal or metalized plastic, although it may be OK with just plain plastic. Our suggestions are: If using a plastic bezel, add a metalization coating to the plastic bezel, and ensure good contact between it and the front panel. Use a flexible conductive gasket to ground the metal frame of the [...]

Do you have any design suggestions for enhancing ESD immunity?2022-04-08T11:45:19-07:00

Do you have EMC/EMI test reports or CE Self-Certifications?

We have not done a full EMC/EMI report since modules are not finished products. Likewise, self CE certification has to be done on a finished product, and our modules are sub-assemblies. We have had many customers pass CE and FCC testing with varying enclosures. We do have an EMC “prescan” of the SLCD43 (currently shipping model, 40 pin 400 nit) with an FCC Class A limit line taken while the display was showing a “checkerboard” pattern, which is the worst case for display EMI. We use a spread spectrum oscillator for the display, which helps spread emissions. See the report.

Do you have EMC/EMI test reports or CE Self-Certifications?2022-04-08T11:46:22-07:00

Are touch panels usable in wet conditions? Wet fingers? Wet screen?

Touch panels are not rated for continuous water exposure, mostly for aesthetic reasons (e.g., dried water leaves mineral spots on the screens). Also, it would be best to seal the screen to the bezel since water cannot be allowed to get on the edge of the panel. You can make it waterproof by using a thin (10 mil / 0.010″) clear polycarbonate layer on top. Maverick Label can make these and add a back-printed border, so you only see the active panel area. See also “Silicon Foam Gaskets” in Mounting Options.

Are touch panels usable in wet conditions? Wet fingers? Wet screen?2022-04-08T11:51:42-07:00

Do you have any spill resistant, waterproof or dust-proof displays?

Spill resistance is a function of the case, not the display. The gaskets in our enclosed units provide an effective waterproof seal and dustproof seal, but only when mounted in a suitable enclosure. While our Enclosed Units currently do not have NEMA or IP ratings, we have several customers using these units in dusty and wet environments. Search for "enclosed" on this site for more information.

Do you have any spill resistant, waterproof or dust-proof displays?2022-04-08T11:52:03-07:00

Do you have any sunlight or daylight-readable displays?

We have some high-brightness options, but brightness alone does not make a screen sunlight/daylight readable. Some of our customers use a shroud to shade the screen. We do have the capability of creating an outdoor-readable screen if we have a lead customer to justify the investment. See custom modules for more information.

Do you have any sunlight or daylight-readable displays?2022-04-08T11:52:24-07:00

Do you have a “ruggedized” display module?

Ruggedized displays are not our core competency.  We suggest that you look at products from Beijer Electronics designed for rugged applications.

Do you have a “ruggedized” display module?2022-04-08T11:53:37-07:00

Do you have tips on getting UL, CSA or ETL approval?

You may want to get UL, CSA, or ETL approval for your product that incorporates a Reach Technology display controller or module. One question that the agency may ask is the screen's flammability rating, which is pertinent only to displays that use high voltage CCFL (Cold Cathode Fluorescent Lamp) backlighting as voltages above the ELV (or SELV) limit are present for these backlights. Voltages that do not exceed the ELV limit drive LED backlights, and thus the flammability of the display typically does not need to be considered. While this is not an exhaustive explanation of the issue, it helps direct those uninitiated into the intricacies of the rating agency requirements. If you are applying for UL certification and your product contains a Reach Technology product, please contact Technical Support for materials that the UL certification body requires.

Do you have tips on getting UL, CSA or ETL approval?2022-04-08T11:54:25-07:00
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