What are the mainstream screen materials?
Author:Wang yuebin Time:2021-07-22 09:12 Browse(152)
TFT
TFT.

What are the mainstream screen materials?

TFT (thin film transistor) is a kind of active matrix liquid crystal display.
it can "actively" control each independent pixel on the screen.
this can greatly improve the response time.
generally, the response time of TFT is relatively fast.
about 80 ms, and the viewing angle is large, Generally, it can reach about 130 degrees.
the so-called thin film field effect transistor (TFT).
means that every pixel on the LCD is driven by a thin film transistor integrated behind it.
thus, the screen information can be displayed with high speed, high brightness and high contrast.
TFT belongs to active matrix LCD.
in technology, it adopts the "active matrix" mode to drive, The method is to use the transistor electrode made of thin film technology, and use the scanning method to "actively pull" to control the on and off of any display point. When the light source is illuminated, it first passes through the lower polarizing plate upward, and uses liquid crystal molecules to conduct light, and achieves the purpose of display by shading and transmitting light.
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TFT type liquid crystal display.
that is, TFT-LCD, The main components include: fluorescent tube, light guide plate, polarizing plate, filter plate, glass substrate, alignment film, liquid crystal material, thin mode transistor and so on.
now it has been very mature.
and it is not being improved. It varies from manufacturer to manufacturer. Therefore, we can often see that the screen materials of two mobile phones are TFT, However, the effect is simply different.
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OLED.
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organic light emitting display (OLED)OLED display technology is different from traditional LCD display.
it does not need backlight, and uses very thin organic material coating and glass substrate. When current passes through, these organic materials will emit light.
and OLED display screen can be made lighter and thinner.
the viewing angle is larger, And it can significantly save power consumption.
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these differences between OLED and TFT and SLCD / ASV are: the latter belongs to one of the liquid crystals.
light transmission is required to open the image, while OLED does not, Each pixel of PMOLED can emit light.
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OLED can be divided into two types: passive driven PMOLED and active driven AMOLED.
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PMOLED is generally monochromatic.
in some mobile phones, there will be some small ones, such as PMOLED, which is used to display the time and status of the mobile phone.
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AMOLED.
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PMOLED The full name of AMOLED is active matrix / organic light emitting diode, which can be colored.
in terms of display performance, AMOLED has faster response speed, higher contrast and wider viewing angle, which are the inherent advantages of AMOLED over TFT LCD; In addition, AMOLED has the characteristics of self illumination, and does not need to use backlight, so it can be made thinner and lighter than TFT, and it can save power; There is a more important feature,AMOLED without backlight panel can save 3-4% of the cost of backlight module for TFT LCD, but it also has a slightly stronger sense of graininess compared with other devices with the same resolution.
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as for applications.
from Nokia N85 and N86 to some Android models such as HTC, G7, ZTE v880 orange version is almost familiar to us.
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Super AMOLED.
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full name of super AMOLED: super active matrix / organic light emitting diode.
while the original AMOLED screen has the advantages of fast response, self illumination, excellent display effect and lower power consumption, In addition, super AMOLED is equipped with mdnie (mobile digital natural image engine) technology, which can watch from any angle and make a rapid response.
in short,
is the upgraded version of AMOLED.
the models used are: Samsung i9000 Samsung s8500, etc.
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Super AMOLED plus.
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recently, we can see the "super AMOLED plus" technology in the media.
it appears in Samsung's dual core models.
its improvement is: if it is calculated by pixel,
the number of pixels of the new display will increase by 50%.
the number of pixels of the new display will increase by 50%,In contrast and outdoor readability, it is better than the past super AMOLED screens.
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ASV.
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ASV (advanced super view).
this technology is not the name of the screen, but mainly by reducing the spacing between the particles on the LCD panel, increasing the aperture on the particles, and adjusting the layout of the particles as a whole, To comprehensively improve the viewing angle of the LCD screen, the reaction time of the liquid crystal particles, the color contrast and the brightness of the screen It can make the screen with ASV technology have an essential improvement in parameters and effect compared with the ordinary LCD without ASV technology.
the screen mobile phone models with ASV technology are more famous: Meizu M9 Cool n930.
etc.
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IPS hard screen.
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IPS (in plane switching.
hard screen) technology is the most advanced liquid crystal panel technology in the world.
hard screen is a film with a layer of resin attached to the surface.
just like people with glasses.
the reason why IPS hard screen has clear and stable dynamic display effect depends on its innovative water The horizontal conversion molecular arrangement changes the vertical molecular arrangement of the VA soft screen, so it has a more solid and stable liquid crystal structure.
it is not in the surface sense.
the hard screen is to add a hard protective film on the liquid crystal panel, in order to avoid the liquid crystal screen from being stabbed by external hardware.
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IPS hard screen technology is the most advanced liquid crystal technology in the world.
at present, IPS hard screen technology is the most advanced liquid crystal technology in the worldCompared with the traditional soft screen LCD,
the IPS hard screen technology has faster response speed and smoother motion picture.
it has the following advantages: 1. Dynamic picture.
no residual image; 2; 2. Dynamic picture, uniform response speed; 3. At present,
Apple iPhone 4 uses IPS screen. Of course, retina screen display technology is added to it, that is, a pixel is divided into four pixels for display. The pixel density is increased by four times, reaching 326ppi, and 300ppi is the resolution that people can see, 326ppi can give you the feeling of looking at paper products when you are looking at the display screen.
it is also named "retina display.
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SLCD.
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SLCD is the abbreviation of English spice liquid crystal display.
it is a special splicing LCD.
SLCD is a high-end derivative of LCD.
it adopts the world's most advanced industrial liquid crystal panel, The service life is up to 60000 hours.
SLCD is a complete splicing display unit.
it can be used as a separate display or splicing into a large screen.
according to different needs.
it can realize single screen split display, single screen separate display, any combination display, full screen splicing and vertical screen display, and the image frame can be compensated or covered, Full HD signal real-time processing.
different from traditional semi-finished LCD screen (such as did screen).
SLCD does not need external power board, signal driver board, graphics processing board, etc,It is a complete finished product, which can be hung and used immediately. The installation is as simple as building blocks, and the use and installation of single or splicing are very simple.
now, almost all HTC new models use this screen.
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This screen is used
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