Have you ever heard of the term LCD? If you are a user of modern gadgets or electronic devices, of course you are very familiar with this technology. Because almost all electronic devices such as televisions, smart phones, digital cameras, and many more use LCD screen technology. Then, what exactly is a LCD Full Form and how does it work? Here is the full explanation.
Understanding LCD Full Form and Its History
LCD stands for “Liquid Crystal Display”. LCD display technology is a very popular digital display technology today. LCDs are used in a wide variety of electronic devices, from smartphones to TVs, laptops and digital cameras.
The history of LCD display technology began in 1962 when a research team from a Swiss company called Hoffmann-La Roche discovered a chemical compound known as a liquid crystal. Liquid crystals are organic compounds that are liquid and can change their position in the presence of an electric field. Since then, scientists have begun to develop LCD technology for display purposes.
However, LCD technology only started to become popular in the 1970s when Sharp started producing calculators with LCD screens. Initially, LCD technology was used only in small, simple devices such as calculators and watches. However, as technology developed, LCD screens began to be applied to larger and more complex devices such as televisions, laptops, and smartphones.
How Do LCDs Work?
LCD consists of several layers that work together to produce a clear and sharp display. These layers are:
- Layer backlight or backlighting
This layer is the first layer on the LCD screen. Its function is to provide light on the screen so that the image can be seen clearly. Backlighting on LCD screens can use LED or CCFL lamps. - Polarizing layer
The polarizer layer functions to filter the light coming from the backlight layer to become polarized light. This polarizer layer is usually on the front and back of the screen. - Color filter layer
The color filter layer is used to produce colors on the LCD screen display. This layer consists of three sub-layers namely the red, green, and blue layers. These three colors will be combined to produce the desired color. - Liquid crystal layer or liquid crystal
This layer is the most important layer on the LCD screen. Liquid crystals contained in this layer can change the polarization orientation of the light that passes through it. When an electric field is applied to the liquid crystal, the polarization orientation of the crystal will change so that the light passing through it will also change its orientation. - The second polarizer layer
The second polarizer layer functions to adjust the light that comes out of the liquid crystal layer so that the polarization returns to its original position. That way, the resulting display will be clear and sharp.
When electricity is applied to the liquid crystal layer, the crystal will change orientation so that the light passing through it will also change its polarization. When this polarized light passes through a color filter layer, the colors on the display are formed.
Read more: Arduino LCD 20×4 I2C
Advantages and Disadvantages of LCD Technology
LCD screen technology has several advantages and disadvantages that you need to know before buying an electronic device that uses this technology. Here are the advantages and disadvantages of LCD display technology.
Advantages:
- Lower power consumption than other display technologies such as CRT.
- The display is clearer and sharper because it has a high resolution.
- The screen size is thinner and lighter so it is easy to carry and install.
- Able to display images with high levels of brightness and contrast.
Disadvantages:
- Narrow point of view. The LCD screen can only be seen from a narrow perspective.
- Inaccurate color. Some types of LCD can produce colors that are less accurate and look faded.
- The price is more expensive than other display technologies such as CRT.
LCD Types
Each type of electronic device has a different type of LCD screen. Here are some types of LCD screens that are commonly used in electronic devices.
1. TFT (Thin Film Transistor)
TFT is the most common type of LCD screen used in electronic devices such as smartphones, laptops and monitors. The TFT screen is capable of producing images with high resolution and good contrast. In addition, the TFT screen also has low power consumption so it can save battery power on electronic devices.
2. IPS (In-Plane Switching)
IPS is a type of LCD screen that is usually used in electronic devices such as tablets and monitors. IPS screens have a wider viewing angle than TFT screens so users can see the display from a wider viewing angle. In addition, IPS screens also have more accurate and sharper colors.
3. OLED (Organic Light Emitting Diode)
OLED is a type of LCD screen that is usually used in electronic devices such as televisions, smartphones and smartwatches. OLED screens have the ability to display more vivid colors and higher contrast compared to TFT and IPS screens. In addition, OLED screens also have low power consumption because each pixel can turn on and off independently.
Read more: OLED SSD1306 Arduino
4. AMOLED (Active Matrix Organic Light Emitting Diode)
AMOLED is a type of OLED screen that uses an active matrix as a pixel control. AMOLED screens are commonly used in smartphones and smartwatches because of their low power consumption and ability to display more vibrant colors and higher contrast.
5. Super AMOLED
Super AMOLED is a type of AMOLED display developed by Samsung. Super AMOLED screens have lower power consumption and better color sharpness compared to regular AMOLED screens.
Read more: Simulation using SimulIDE
In Conclusion, LCD (full form) is a Liquid Crystal Display, which is a display technology that uses a layer of liquid crystals to produce a visual display on electronic devices. Each type of LCD screen has advantages and disadvantages that need to be considered before buying an electronic device. However, LCD screen technology remains a popular choice due to its low power consumption, clear and sharp display, and thin and light size.
Read more: Arduino LCD I2C Interface
In choosing an electronic device with an LCD screen, be sure to consider your needs and budget. Choose the type of LCD screen that suits your needs and budget, and buy from a trusted manufacturer with good quality. By paying attention to these things, you can enjoy a clear and sharp visual display on your electronic devices. That’s all about LCD Full Form.
