What is a screen

Screens are appliances used to display images and colors. It is divided into screens and screens, also called displays.
This screen is also known as a display. The size of the screen is calculated diagonally on the screen, usually in inches (inches), which refers to the length of the diagonal line of the screen. Commonly used displays include standard (narrow screen) and widescreen. The standard screen aspect ratio is 4:3 (5:4 for a small number) and the widescreen aspect ratio is 16:10 or 16:9.


Overview of the phone screen

You might think that the phone screens are the same, but that's not far from what it actually is. Phone screens vary by phone brand. With the advancement of technology, many brands rely on different technologies to meet market demands. That's why phone screens vary from phone to phone. In addition, the type of phone screen used has a great influence on the use of the device.
Here's an overview of some of the most used phone screens today.

Liquid crystal displays (LCDs) are defined as thin board displays used in mobile devices, televisions, and computers. However, LCD technology belongs to a different type. The most common types of LCD technology on mobile phone screens include:

LCDs require backlighting. This means that THE LCD requires more power than other display types, which puts a burden on the phone's battery. However, they are inexpensive to produce, lightweight and thin, making them beneficial for a variety of applications.

Thin-film transistors (TTTs)
TFT LCD is a practical improvement over the old LCD. This version tends to be of better quality than previous LCDs, and the TFT display provides a sharp image that is poor from a certain angle. Therefore, with this monitor, it is best to start from
Straight angle.

In-Plane Switching (IPS)
IPS LCDs are more complete than TFT DVs. This is in terms of wider viewing angles and better color reproduction. It is the technology behind current mid-range and high-end portable devices and mobile phones.

Olad Displays
Organic light-emitting diode (OLED) displays can provide brighter, sharper images. This means that it will use less power, which sets it apart from LCD. Recently, you can find various smartphones that use OLED displays. Like LCDs, OLEDs come in various types.

Olad Displays
OLED displays use an organic hydrocarbon luminous chain where every pixel emits light. Unlike LCDs, OLED does not require every pixel to have a backlight. In addition, it has a high contrast ratio, allowing bright white and dark black. However, compared to LCDs, they have a shorter lifespan due to the organic nature of the components.

Active Matrix OLED (AMOLED)
AMOLED displays combine TFT and OLED display technologies to save power consumption and reduce response times.

Super AMOLED Display
Super AMOLED is also manufactured by AMOLED technology. However, it is different because it offers 20% power and 205 brighter screens. In addition, since it has a low sunlight reflection, it is very suitable for mobile phone use and is usually used outdoors.

Advantages of LCD Screens

Thin fuselage, space-saving, compared with the more bulky CRT display, the liquid crystal display as long as the former one-third of the space; power saving, does not produce high temperature, it belongs to low power consumption products, compared to crT monitor can do not burn at all; no radiation, is conducive to good health, liquid crystal display completely radiation-free.

The picture is soft and does not hurt the eyes, unlike CRT technology, the LCD screen will not flicker, which can reduce the damage of the display to the eyes, and the eyes are not easy to fatigue.


LCD Panel

The liquid crystal panel includes a polarizing film, a glass substrate, a black matrix, a color filter, a protective film, a common electrode, a calibration layer, a liquid crystal layer (liquid crystal, gasket, sealant), a capacitor, a display electrode, a prism layer, and a light scattering layer.
Polarizers are also known as polarizers. Polarizers are divided into upper polarizers and lower polarizers. The polarization functions of the upper and lower polarizers are perpendicular to each other, and their function is like a fence, blocking the light wave components according to the requirements, such as blocking and perpendicular to the polarizer fence, and the light wave components that are perpendicular to the polarizer fence are only allowed to pass through the light wave components parallel to the fence.

Glass substrate (Glass Substrate) in the liquid crystal display can be divided into upper substrate and lower substrate, its main function is to clamp the liquid crystal material in the space between the two substrates. The material of the glass substrate is generally alkali-free borosilicate glass, which has excellent mechanical properties, heat resistance and chemical resistance. For TFT-LCD, one layer of glass substrate is distributed with the TFT and the other layer of glass substrate is deposited with color filters.

The black matrix is used to separate the three primary colors of red, green and blue in the color filter (to prevent color confusion) and to prevent light leakage with the help of high-shadow materials, thus helping to improve the contrast of each color block. In addition, in TFT-LCD, the black matrix can also cover the internal electrode traces or thin-film transistors.


Post time: 06-17-2022