DESCRIPTION
A Liquid Crystal Light Valve (LCLV) is a device that uses the properties of liquid crystals to control the level of illumination passing through an optical system. It’s basically what goes on in your LCD monitor/TV/projector etc, but for each individual pixel. They are often used for electric welding helmets because they can protect the welder’s eyes from the bright sparks. Or €“ if you aren’t a welder €“ they can be used to provide a “reveal” effect for your project, as you can control the opaqueness of the LCD.
In this product, there is one huge LCD piece, which will filter what you see through it. Normally, it’s tinted a grey colour (because the light around us is not polarized, it is not completely clear). There are two sets of electrodes, on the left and right. The two pins closest to each other (on the edges) are the same electrode, and the LCD is symmetric so you can use either one as positive/negative.
Changing the voltage applied will block light more and more. Starting at about 1.0VDC the glass will start darkening. At about 4.0V the glass will be opaque. 5V is the max recommended voltage. In between, you will get darker shades.
Almost no current is used, once activated with a voltage, the panel will stay at that darkness level even if the voltage is removed. So, if you want to have it turn on and off, you’ll need to drive it with a 0V signal to ‘open’ it up, or connect a draining resistor between the two pins to leak the voltage off when not powered.
Please Note:
- This is a thin piece of glass, you can’t bend it and it’s very delicate! Use care when working with this item.
- It is not capable of blocking 100% of light, but it looks like it blocks at least 95%. If you put a bright light behind it, you will see some light shine through.
FEATURES
- Outline size: 96.5 x 38.0 x 2.0 mm
- View area: 88.5 x 34.5 mm
- Driving voltage: 5.0V
- LCD type: TN, transmissive, positive
- Operating temperature: -10° to 60°
- Product Dimensions: 97.0mm x 38.0mm x 2.0mm / 3.8″ x 1.5″ x 0.1″
- Product Weight: 14.4g / 0.5oz
Fast Shipping with Professional Packaging
We have a range of shipping options due to our long-term partnership with UPS FedEx DHL. Our warehouse staff is highly educated to pack your items precisely according to the specifications that we supply. Your items will undergo an exhaustive inspection and securely secured prior to being shipped. We ship to thousands of customers every day from all over the world. This shows our commitment to being the largest online retailer in the world. The distribution centers and warehouses distribution are in Europe and the USA.
Note: Orders with more than one item will be assigned a different processing period for each item.
Prior to shipment, we examine the items ordered carefully before shipping. The majority of orders are delivered within 48 hours. The delivery time will be between 3 and 7 working days.
Returns
The inventory is always changing and we are unable to fully manage it because of the fact that many parties are involved, including our warehouse and factory. The actual stock levels can fluctuate at any time. You may not receive your order once it has been placed.
Our policy lasts for thirty days. If 30 days have passed in the past since you purchased however, we're unable to give you a refund or exchange.
The item should not be used, and it must be in its original condition. It should also be in the original package.
Related products
LCD Displays
LCD Displays
11.6 inch HDMI LCD (with case), 1920*1080, IPS, Capacitive touch, Supports Raspberry Pi 4 Seeed
Component
LCD Displays
Component
LCD Displays
LCD Displays
PiTFT Plus 320×240 2.8″ TFT + Capacitive Touchscreen for Raspberry Pi (ID: 2423) Adafruit
LCD Displays
LCD Displays
Component
1.14 inch LCD Display Module for Raspberry Pi Pico – 65K Colors – 240×135 – SPI Seeed Studios
LCD Displays
LCD Displays
