blue backlight lcd module 24064 supplier

NHD-24064WG-ATMI-VZ# | Monochrome Graphic Module | 240x64 Pixels | Transmissive LCD | Side White Backlight | STN (-) Negative Blue Display | Built-in Negative Voltage Supply

Newhaven 240x64 graphic Liquid Crystal Display module shows white pixels on a blue background. This transmissive LCD Display requires a backlight for visibility and offers a wide operating temperature range from -20 to 70 degrees Celsius. This NHD-24064WG-ATMI-VZ# display includes built-in negative voltage supply It has an optimal view of 6:00, operates at 5V supply voltage and is RoHS compliant.

Shenzhen Surenoo Technology Co., Ltd.is a professional display supplier, work in LCD Industry since 2005, The company has its own trademark "Surenoo Display", dedicated to the LCD industry over 10 years, supply service for numerous domestic and foreign eBay and Alixpress buyers and companies. After more than ten years of development, it has gradually gained recognition and recognition from domestic and foreign customers. The company has a rich product line. The company"s designers are composed of a group of experienced and experienced professionals who can provide customers with fast, high-quality design solutions and meticulous technical support.

In July 2019, we joined the Alibaba China Supplier Gold Certified Member, and we will provide professional services to our customers with more advantageous LCD product resources.

ERM24064FS-1 is white background with 240x64 monochrome black pixels,Raio RA6963 controller (fully compatible with Toshiba T6963) that is extremely common and well documented,8080 8-bit parallel interface,single led backlight with white color included can be dimmed easily with a resistor or PWM,fstn-lcd positive,wide operating temperature range and wide view angle,high contrast,rohs compliant,optional pin header.Toshiba T6963 has been assigned to End-of-Life,we use Raio RA6963 as the replacement that is fully compatible with Toshiba T6963.

ERM24064SYG-1 is yellow green background with 240x64 monochrome dark blue pixels,Raio RA6963 controller (fully compatible with Toshiba T6963) that is extremely common and well documented,8080 8-bit parallel interface,single led backlight with white color included can be dimmed easily with a resistor or PWM,fstn-lcd positive,wide operating temperature range and wide view angle,high contrast,rohs compliant,optional pin header.Toshiba T6963 has been assigned to End-of-Life,we use Raio RA6963 as the replacement that is fully compatible with Toshiba T6963.

Article today is about a way to revive some old units with faulty display backlight to former glory. It takes huge amount of man-hours and grey-beards to develop advanced and high performance test instruments. Also it is not trivial to maintain equipment in good health, especially for that extended lifespan over 25+ years. Reason is rather generic – many components from the past often not available on the market today. This means difficult and time consuming workarounds and repairs with modern equivalents if any of the obsoleted parts go bad.

In this article we will look at finding replacement for key component of user interface such as graphical LCD screen. Back in the 90’s vacuum fluorescent displays were the king of the market for high end instrumentation. We can name just few well known examples – HP 3458A, Fluke 5700A, Datron 1281 or even daily bench meter like HP 34401A. LCD tech still was quite new and developing then. Here we will be patching up not just any instrument, but the crown jewel of the resistance metrology field – Measurements International 6010B 9½-digit DCC bridge. 6010B is a predecessor from 1997 of today’s modern Model 6010D improved version.

Metrology lab targeted bridge system like 6010 in 99.9% of target usage cases is controlled remotely via control program over GPIB bus. But in rare case when operator needs to run quick check or verify good connections to resistance standards user can find onboard LCD handy. However, here is a weak point in such case if factory-made backlight got faulty due to age of some older instruments.

Older 6010 bridges using miniature incandescent light bulb for providing backlight. This backlight is quite fragile and with 25-year old obsoleted instrument like 6010B chances for dead lamp or near failing one are high. It would be hard or next to impossible to find exact to-spec replacement for original bulb today. But not all is lost and we can rectify the situation with new LED-backlit high contrast display instead.

This would give more user enjoyment out of older but still perfectly capable instruments. Keep in mind that LCD replacement procedure and steps in this guide are shown only as simple example on what can be done. It is not the only possible solution, but perhaps rather easy one.

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MIL 6010B build is very modular and mechanically well designed. Front panel MIL 6010B can be detached from chassis by removing four screws on the sides. 6010 units have LCD, backlight and keypad are mounted on front panel metalwork.

This display does not have integrated backlight but has optional special option for electroluminescent backlight (-EO suffix). Measurements International didn’t go for electrically noisy high-voltage electroluminescent backlight. Instead they went for linear low voltage incandescent bulb in aluminum reflective/heatsink focused on very cool looking multi-fiber optical cable to spread light into LCD light diffuser.

Each strand on fiber cable is edged and polished to perfectly flat surface to have good light transmission from light source to backlight module in LCD.

Despite reasonably low power that lamp use it gets to blazing hot temperatures. Infrared camera thermograph with temperature markers are shown below. Hottest center element is actually glass infrared filter to prevent lamp heat reaching fragile fiber-optic cable. It is transparent to visible light allowing very warm yellowish backlight to operate. Temperatures of excess +195 °C were present close to lamp.

We spent some time trying different LEDs to act as a light source for backlight as lamp replacement. But brightness of used LED was either too low or light source required some non-standard chip-type LED that is quite difficult to position into perfect spot in reflector body to aim focused light on fiber input.

To match style of light-blue Measurements International instruments and latest 6010D negative white display used. We got few mechanically and most important, electrically compatible RA6963-based EastRising ERM24064DNS-1 LCDs. These modules available for inexpensive $28 USD and have very close dimensions to AND original LCD used by factory.

p=.There are multiple color/backlight variants of this display, so if you don’t want negative white on black, take a look on alternative colors as well.

New module have very similar mechanical dimensions, but does not match old display perfectly. It need small amount of alignment in position for good centering. I did not want to modify original mounts or frame thus can live with few millimeters off ideal position.

MIL 6010 use 20-conductor flat ribbon cable to interface with LCD. Pins 21 and 22 used for backlight power. These need to be connected to +5V power source by user.

First we need to provide power to white LED backlight. Power measurement on my display sample revealed current draw around +110 mADC at supplied +5.00 VDC.

This is in line with datasheet specification, but I feel like bit smaller backlight power might be actually better. Jumping ahead, 6010B with new display is brightest instrument in the lab at night now. :)

For backlight I’ve just jump-wired pin 21 to +5V positive terminal of input power tantalum capacitor CE1. And backlight cathode from pin 22 connected to negative terminal of the same capacitor. This supplied +5VDC across integrated LED backlight just fine.

Next modification is LCD contrast adjustment. Measurements International 6010B bridge does not allow user programmable LCD contrast change. We have to do it the hardware way. Contrast is controlled by bias from small negative supply and simple R3/R4 divider network. One way is to change values of R3 or R4 resistors on LCD PCB. Or alternative path, also recommended in interfacing document supplied with LCD is to connect multi-turn 10 kΩ trim potentiometer between negative supply (pin 20, marked orange on Image 12) and ground (marked blue on Image 12). Trim-pot was soldered directly to -15V and GND pads available at R3, R4 and all needed is good fixed contrast setting.

After modifications on LCD completed, install it into unit. Make sure to insulate exposed 4.2 VAC pin header and wire used for old lamp power. I didn’t remove original lamp assembly and holder, you can still see it on Image 12.

Such LCD replacement was easy and quick improvement of expensive and rare instrument. Hopefully this brings an example on how obsolete old parts can be replaced with modern technology, bringing second life to instruments we all love.

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A 5.2″ monochrome, 240×64 dot matrix, COB (Chip on Board) Graphic LCD Module(AMG24064BR-M-Y6WFDY-UC-NV) in STN Positive Yellow Green LCD Mode Wide Temperature Range (Operating Temp: -20°C to 70°C, Storage Temp: -30°C to 80°C), and Yellow Green LED Backlight. It has a six O’clock viewing direction and a transflective polarizer recommended for applications that will be used both indoor and outdoor. This product has negative voltage and is assembled Chip On board with 1/64 Duty and a Controller IC UC6963 or equivalent. The interface type is Parallel. This is an ROHS compliant product manufactured with ISO standards and procedures.