Skip to main content

LCD

LCD (Liquid Crystal Display) Liquid Crystal display. The structure of LCD is to place a liquid crystal cell between two parallel Glass substrates. The lower substrate Glass is equipped with TFT (thin film Transistor), and the upper substrate glass is equipped with a color filter. The signal and voltage on the TFT are changed to control the liquid crystal molecules. Rotate the direction, so as to achieve the display purpose by controlling whether the polarized light of each pixel point is emitted or not. LCD has replaced CRT as the mainstream, and the price has dropped a lot, and it has been fully popularized.
A few days ago, according to data from CINNO Research, 2020 is expected to be the first year of mass production and launch of fingerprint recognition mobile phones under the LCD screen.

LCD Type
According to the different Backlight sources, LCDs can be divided into two types: CCFL displays and LED displays.
Misunderstanding:
Many users believe that liquid crystal displays can be divided into LEDs and LCDs. To some extent, this understanding is misguided by advertisements.


The LED display on the market is not a true LED display. To be precise, it is an LED-backlit liquid crystal display. The liquid crystal panel is still a traditional LCD display. In a sense, this is somewhat fraudulent. nature! South Korea's Samsung was once convicted by the British Advertising Association as violating the country's advertising laws because its "LED TV" LCD TVs were suspected of misleading consumers. For liquid crystal displays, the most important key is the type of liquid crystal panel and Backlight, while the liquid crystal panels of displays on the market generally use TFT panels, which are the same. The difference between LED and LCD is only their backlight type: LED The backlight and CCFL backlight (that is, fluorescent lamps) are Diodes and cold cathode lamps, respectively.

LCD is the acronym for Liquid Crystal Display, which means "liquid crystal display", that is, liquid crystal display. The LED display refers to a type of liquid crystal display (LCD), that is, a liquid crystal display (LCD) with LED (light emitting Diode) as the backlight source. It can be seen that LCD includes LEDs. Corresponding to the LED display is actually a CCFL display.
(1) CCFL
Refers to a liquid crystal display (LCD) with CCFL (Cold Cathode Fluorescent Lamp) as the backlight source.
The advantage of CCFL display is good color performance, but the disadvantage is higher power consumption.
(2) LED
Refers to a liquid crystal display (LCD) that uses LEDs (light emitting Diodes) as a backlight source, and generally refers to WLEDs (white light LEDs).

The advantages of LED displays are small size and low power consumption. Therefore, using LEDs as a backlight source can achieve high brightness while taking into account lightness and thinness. The main disadvantage is that the color performance is worse than that of CCFL monitors, so most professional graphics LCDs still use traditional CCFL as the backlight source.

Comments

Popular posts from this blog

Drive the preferential presetting of the spring frame of the vehicle

The secondary spring system of the original electric locomotive consists of 4 sets of the same ordinary cylindrical compression springs. Its parameters are: spring material diameter d=48mm, maximum working circle diameter D=230mm, effective working circle number n=6.6, free height H0= 528mm, working height H=431mm. The characteristic curve of the spring is approximately straight, with stable stiffness and simple structure. However, the spring stiffness is mainly along the axial direction, and its transverse shear and bending stiffness is very poor, and its anti-resonance ability is poor. After the train speeds up, its snake-like movement and shaking phenomenon intensify. Therefore, it is necessary to improve the spring system of electric locomotives. Improvement of the spring system. The improved spring parameters and characteristics take into account the special position of the secondary spring (between the bogie and the car body) and specific functions (s...

How are the CNC Machining Manufacturers in Shenzhen? China Hardware Has Carried out Comprehensive Comparison with Multiple Dimensions in Various Regions

Keywords: Cnc Machining manufacturers,CNC Machining,How about Shenzhen CNC Machining manufacturers I'm not afraid of the quality of the product, I'm afraid to shop around. There is no contrast and no injury, this has been known to everyone since ancient times. For example, Shenzhen CNC Machining manufacturers, if you can find more Shenzhen CNC Machining manufacturers to compare their products, and compare the strengths of Shenzhen CNC Machining manufacturers, you will find that what you see with the naked eye is not all right, there may be some Unidentified objects participate in it, how do you compare them, and what aspects should you start with? Let's see how you do it. Everyone says to shop around. So, what is the comparison? Here is an explanation. Duowei Shenzhen is looking for suitable Shenzhen manufacturers for CNC Machining: 1. There are various qualification certificates: such as: business license, ISO, equipment distribution, enviro...

Hitachi LM213XB

# LM213XB Hitachi LM213XB New LM213XB KOE 5.8inch Panel 256×64 Monochrome B/L CPU, LM213XB pictures, LM213XB price, #LM213XB supplier ------------------------------------------------------------------- Email: sales@shunlongwei.com https://www.slw-ele.com/lm213xb.html ------------------------------------------------------------------- Panel Brand : HITACHI Panel Model : LM213XB Panel Type : STN- LCD , Panel  Panel Size : 5.8 inch Resolution : 256×64   Display Mode : STN, Yellow/Green (Positive), Reflective  Active Area : 143.31×35.79 mm Outline : 184×75×12 mm Display Colors : Monochrome     Signal Interface : 8-bit parallel , 20 pins   Input Voltage : 5.0V (Typ.)  ...