Plasma TV and LCD TV which is better
Author:Li Zhiqiang Time:2021-07-21 17:58 Browse(752)
Due to the optimization of modern image control circuit, there is no obvious difference between LCD and plasma TV on the market now and from the perspective of personal viewing.
Due to the optimization of modern image control circuit, there is no obvious difference between LCD and plasma TV on the market now from the perspective of personal viewing.
.
the differences can be seen as follows:

Plasma TV and LCD TV which is better

1. LCD has bright color, high brightness and relatively mild plasma the actual power consumption of TV sets of the same size is almost the same it is equivalent to the CRT in the past, but the response speed of liquid crystal is relatively slow due to the result. The result is that there will be "tailing" phenomenon when watching fast-moving objects. However, the response speed of current liquid crystal panel can reach 4ms, plus the support of advanced image processing circuit, From the actual point of view, there is no obvious "tailing" phenomenon.
.
4. Plasma has "burning" problem.
liquid crystal does not exist.
.
5 The price of flat panel TV with the same resolution is higher than that of LCD TV.
.
.
the following detailed technical articles are for your reference.
.
a brief overview of LCD and plasma.
LCD TV.
also known as LCD TV, is based on the principle that liquid crystals emit light and image under the action of voltage.
there are three kinds of liquid crystals that make up the screen: red, green, blue and blue Blue.
is called three primary colors. They are arranged in a certain order. By stimulating these liquid crystals with voltage, they can present different colors, and the collocation of different proportions can present a variety of colors.
therefore.
the LCD TV which is accurate to the "point" is a higher level than the ordinary TV (CRT) which is "line by line scanning).
the color of the LCD TV is different from that of the ordinary TV
plasma TV.
also known as PDP (plasma display panel) TV.
the working principle of plasma display panel.
is to install hundreds of thousands of plasma tubes on the display plane as light emitting body (pixel).
each light emitting tube has two glass electrodes and is filled with helium When a high voltage is applied between the two electrodes, an inert gas discharge is induced, Plasma is produced.
the ultraviolet light produced by plasma excites the electrode coated with phosphor and emits different components of visible light mixed by three primary colors.
each plasma led is what we call the pixel of plasma display.
the picture we see is formed by the "light spots" formed by these plasma LEDs.
plasma technology is the same as other technologies There are obvious differences in display modes.
it is one step ahead in structure and composition.
.
.
advantages and disadvantages of LCD and reasons for selection.
advantages: high definition, high brightness, wide viewing angle, realistic image, fine and three-dimensional image quality are the first impression of LCD TV; Light, power saving, no flicker and no radiation are also the outstanding selling points of LCD TV which is superior to traditional CRT color TV; At the same time.
LCD TV also has rich interfaces, which can connect computers, DVDs and other audio and video devices. Now some manufacturers have integrated the function of reading flash card into LCD TV, which also makes LCD TV have more digital flavor.
in addition, LCD TV can be placed at random.
it can be placed on the wall or on the ceiling, People can also see the picture when they lie in bed.
.
.
disadvantages: narrow perspective.
The display is incoherent, with residual shadow and poor color saturation.
at present, the mainstream size of LCD TV in the market still stays at 30 inch level.
moreover, the price of more than 40 inch products is on the high side.
.
.
reason for purchase: traditional picture tube TV takes up too much space.
plasma TV body temperature is high, However, LCD TV shows more detailed pictures.
with wide screen ratio design, the viewing angle is wider.
.
.
advantages and disadvantages of plasma and reasons for selection.
advantages: thin body.
no flicker, pure plane without distortion, ultra wide viewing angle, which can accommodate more people to watch.
brightness uniformity.
due to the thermal blooming problem of traditional CRT technology, That is to say, the brightness is uneven in the center and four corners of the picture, and each pixel in the plasma display can emit light independently, which is very uniform, and there is no bright area and dark area, so there will not be the above problem.
in addition, the plasma TV has high brightness and contrast.
even in the strong light outside, it also has a very clear picture, It is suitable for outdoor display.
.
in addition, ordinary CRT TV will appear pictures that can not be observed by vision during picture switching.
therefore.
watching TV for a long time will cause visual fatigue and negative impact on eyes.
plasma TV completely eliminates picture shaking.
and has high definition, It will not cause visual fatigue and eye damage.
.
.
disadvantages: plasma TV's high voltage, high power consumption and brightness attenuation are its obvious defects.
in addition, its image quality decreases with time, and the heat dissipation environment must be good. Because of its various defects, plasma TV is not suitable for fine display.
.
the advantages and disadvantages of plasma TV are as followsWhy to buy: traditional CRT TV and rear projection TV are too bulky.
while LCD TV has unique advantages, it is not large enough to meet the requirements of living room furnishings, and the appearance of plasma TV can completely solve this problem.
in addition.
in terms of color saturation display or brightness requirements, LCD TV is not suitable for living room furnishings, Plasma TV can be satisfied by people, and you can also see clear pictures from all angles.
.
.
although the display screen of TV is a key factor of flat panel TV.
but it is not the only factor.
according to the relevant industry insiders.
"with the same screen, there will be obvious differences in image quality between TV sets made by different enterprises, Therefore, the image processing technology of flat-panel TV is also a key factor.
"in addition,
in the current market development situation, any display mode has its advantages and disadvantages, just as the advantages and disadvantages of LCD and plasma display screen show.
if the technical bottleneck of LCD TV can not be improved.
the plasma market will always exist, Just like the development of traditional CRT color TV sets, although most manufacturers are not optimistic about the development of traditional CRT color TV sets, due to the defects of flat-panel TV itself and the bottleneck problem that can not be broken through, no one dares to deny the decisive position of CRT market share.
.
.
the market is developing.
flat-panel TV display technology is constantly updated, However, when one kind of display itself does not meet the requirement of abandoning another alternative product, the market will not easily abandon the product with defects but profit margin, so it is unscientific to overestimate or underestimate any display mode.
in the current market development.
in the current market development, the market will not easily abandon the product with defects but profit marginThe development of liquid crystal and plasma will coexist for a long time.
.
.
the color level, resolution and image clarity of liquid crystal TV are higher than those of plasma TV.
moreover, liquid crystal TV belongs to low-voltage imaging, Therefore, the power consumption is much smaller than that of plasma.
plasma TV belongs to high-voltage imaging.
plasma is suitable for long-distance viewing on large screen.
.
both plasma TV (PDP) and liquid crystal TV (LCD) belong to flat panel TV.
they are like twins, although they are very similar on the surface, However, there are great differences in essence.
the biggest difference between the two is that they use different panels.
that is to say, their imaging principles are very different.
plasma TV relies on high voltage to activate the special gas in the imaging unit.
it produces ultraviolet light to stimulate phosphorescent materials to emit light.
while LCD TV changes the thin-film crystal on the LCD panel by current In addition, plasma TV and LCD TV have their own characteristics. For example, plasma TV is cheaper than LCD TV in the same size, However, LCD TV has advantages in power-saving performance and display resolution.
.
about clarity.
.
enterprises producing LCD TV often claim to be superior to plasma TV in clarity.
and claim that the highest physical resolution of plasma TV is less than 1024 × 1024, and almost all LCD TVs can reach 1024 × 768, the highest has reached 1920 × 1080.
in fact.
most plasma TVs on the market have a physical resolution of 852 × 480, only a few plasma TVs have a physical resolution of 1024 × 768.

.
but the definition of flat panel TV is not only determined by the physical resolution of the screen.
the circuit also directly affects the definition of high-definition signal processing, It's not enough to judge from the physical resolution of the screen.
therefore.
it's not scientific for LCD TV manufacturers to attack plasma TV from the physical resolution of the screen.
.
.
about the perspective.
.
no matter how LCD TV defends.
plasma TV is better than LCD TV in terms of perspective, Of course, plasma TV is not "no perspective problem."
for TV sets used in living rooms and bedrooms,
few people will watch TV at an angle of more than 120 degrees, so from this angle, there is no need for both sides to attack the perspective.
.
.
about response speed.
.
response speed used to be the weakness of LCD TV.
although there have been great improvements in technology recently, However, they are sometimes attacked by the enterprises that produce plasma TVs.
some enterprises claim that their LCD TV response time has been reduced to 8 milliseconds, but in fact, Most of the LCD TVs on the market have a response time of about 12 Ms.
even the LCD TVs that have claimed that the response time has dropped to 8 ms.
there is still a tailing phenomenon when playing fast moving images, Because the 8 ms response time claimed by the enterprise is measured when still images are played.
.
.
for a fast-moving black image or white image,
LCD TV has slight tailing, but this does not mean that plasma TV is perfect in this respect. For fast-moving white objects, plasma TV also has slight tailing, It's just that when fast-moving objects change to black,Plasma TV is superior to liquid crystal TV in processing moving images.
but when the still image appears at the same position of plasma screen for a long time, it may be burned.
when plasma TV is burned.
when switching on or off, plasma TV will be burned, The image that has been playing for a long time will appear indistinctly on the screen, as if it is printed on the screen, and this has become the target of some LCD TV manufacturers attacking plasma TV.
.
.
about contrast.
.
if we only look at the contrast figures marked on plasma TV and LCD TV by enterprises.
LCD TV is far inferior to plasma TV, But it can't be said that plasma TV is better than LCD TV.
this is because plasma TV and LCD TV adopt different contrast measurement methods.
even the measurement methods adopted by each enterprise are different. Of course, the data marked on their products will be very different.
plasma TV mostly adopts all white and all black measurement methods.
the contrast is generally very high, Some companies claim that the contrast ratio is as high as 8000:1, which is the reason.
if measured according to the American national standard ANSI,
the contrast ratio of plasma TV and LCD TV is mostly around 200:1 or 300:1, This calculation method is to compare the black and white of the same image.
.
the plasma color is true, and the dynamic definition is high, because there is no tail hold.
the LCD can only watch the news and slow-moving pictures when it comes home.
it can't watch TV series, sports events and blockbusters (including digital signals), because there is tail hold, and the phenomenon of liquid crystal tail hold has not been overcome yet.
this method is based on the comparison of black and white of the same imageYou can go to the mall to have a look.
basically, the pictures on those LCD TVs are scenery or still pictures. If you put high-speed moving pictures, it would be too rubbish.
and the viewing angle is not as good as plasma.
now the viewing angle of LCD TVs is only 178 degrees, The contrast of LCD TV is not good.
especially when you look at dark pictures, you can hardly see anything, and bright pictures shine on your eyes, which is not good for your eyes. Plasma looks soft and comfortable.
for TV color restoration, plasma is much better than LCD TV, such as green leaves, flowers, people's skin color, It's very realistic.
LCD TV doesn't work.
although the resolution of LCD is high, it can only be used as a computer monitor for still images.
when it comes to power consumption.
on the surface, plasma does not need LCD power consumption, but in fact it does not.
because plasma is self active lighting.
when watching TV, it can automatically adjust the power consumption according to the brightness of the image, No matter what the picture is, the power consumption is always on a horizontal line, which will not change.
plasma is more energy-saving the big ones buy plasma, and the small ones buy liquid crystal.
.
.
Related topics