Please recommend an eye friendly LCD TV?

After the market warm-up in the first half of 2010, and with the help of the movie "Avatar", the World Cup and other events, 3D images are widely known, and in the field of flat-panel TVs, a wave of 3D market boom has also been set off. At present, almost all TV manufacturers have successively released their own 3D TV products,Among them, Japanese and Korean brands are the majority。 And domestic brands are also stepping up3DThe pace of TV listing,It can be said,In the second half of the year, major appliance manufacturers in China, Japan and South Korea have intervened,The entire 3DThe TV market competition will be more intense。

At present,3DThe TVs on the market are all active shutter type,Wearing active shutter type3D glasses,The dizziness and nausea caused by the left and right eyes cannot be synchronized for a long time**,It is not the experience that 3DTTV wants to bring to consumers the most。 At the same time, the shutter-type bulky glasses, the later cost of charging and the high cost of the glasses themselves are all defects that are currently criticized for shutter 3D TV. Due to the influence of signal reception, when wearing the active shutter glasses**3D picture, there are certain restrictions on the position of the **person**, if the signal reception range is exceeded, the glasses will occasionally fail, so that the 3D image can not be seen.

Of course,Whether it is the current mainstream active shutter type or the polarized light type that may rise in the future,3DThe performance of TV is always the core of LCD TV——Panel technology。 With the increasing maturity of the 3D TV market,Brand choices continue to increase,Panel has become the most critical purchase indicator。

Specifically, compared with 2D LCD TV, 3D TV IS ONLY IMPLANTED WITH 3D IMAGE PROCESSING CHIP, AND ITS MAIN BODY IS STILL LCD TV. And in the case of limited 3D film sources, watching 2D programs is still the first choice for many consumers. In this case,As the core component of LCD TV, the panel is the window that presents the final picture,The advantages and disadvantages of panel technology directly affect the upgrade and experience of the application。

Compared with the VA soft screen, the IPS hard screen has the advantages of clear and ultra-stable dynamic display effect, no color offset, ultra-wide viewing angle, and low power consumption. With these performance advantages, IPS hard screens have gained more and more recognition in TV applications and consumer fields, and the 3D era is no exception. Moreover, the IPS hard screen's "flickering backlight + Swift 480Hz" technology relies on a refresh rate of up to 480Hz and IPS more uniform and fast molecular response speed, while ensuring an ultra-high refresh rate, the flickering backlight technology can automatically turn off the backlight when the visual temporary image appears, which avoids the discomfort caused by the "ghosting" of the picture in 3D entertainment applications to the greatest extent.

It is undeniable that the structural characteristics and performance advantages of IPS hard screen provide a more optimized solution for this application.

Under the unanimous promotion of all manufacturers, 3D TV is bound to make great progress in 2010. Only those manufacturers who master the core technology and core competitiveness can get a piece of the pie and make great progress in this fierce 3D image war.

Of course, it is the most authoritative ophthalmology certification such as Beijing Ophthalmology Institute and Beijing Tongren Hospital, you say yes, or buy an IPS LCD TV with a hard screen panel, how to say that it is also certified.

Samsung, Sony, Sharp.

Television (TV) refers to the use of electronic technology to transmit the image picture and audio signal of the activity, first invented by the British engineer John Logie Baird in 1925, television is recognized as "one of the most important inventions of the twentieth century".

TV is mainly composed of signal system, scanning system and power supply circuit, etc., modern TV can be divided into network TV (webtv), digital TV (DTV), Internet TV (IPTV), mobile TV, outdoor TV five categories.

Television principle: The method of using electricity for television transmits the visual image of the activity in real time. Similar to movies, TV uses the visual residual effect of the human eye to show a still image with a gradual change of frames, forming a visual living image.

The transmitter of the TV system converts the various fine parts of the scene into electrical signals according to brightness and chromaticity, and transmits them sequentially. At the receiving end, the luminance and chromaticity of each fine part are displayed according to the corresponding geometric position to reproduce the entire original image.

The scanning system of television signals in various countries is not exactly the same as that of channel broadband, and is distinguished by Latin letters according to the recommendations of the International Radio Advisory Committee (CCIR).

Upstairs, please note,The conclusion developed jointly with Beijing Tongren Hospital is whether Changhong's plasma TV is good or not?!!And at present, only Changhong is the only one who has the ability to go to the robot production line in China to ensure the quality and produce chips (quantum cores) independently! Don't take Skyworth,Hisense to make a fuss,Go and understand the information yourself and then fool around on the Internet!

Plasma TV is also known as eye protection TV,It is mainly reflected in the following points:1Light and eye protection.

You can use white paper for you to experiment by yourself or ask the shopping guide,LCD TV can easily see the image behind the paper,And plasma you look at from the paper,There is only a blurry piece,This shows,The light penetration of plasma is very weak。 You can actually imagine this blank paper as your retina,The light of the LCD TV can easily penetrate the white paper,It can also easily penetrate your retina,Not to mention that the retina of the human eye is more than many times thinner than white paper,Adults may not have much impact,But what if there are children at home? Their eyes are still developing, how can you bear to let him get hurt?

2.Color temperature and eye protection. I don't know if other brands have this function, but Changhong has this function.

Tests have proved that the most suitable color temperature for the human eye should be 5500---6500K, which is equivalent to the sun at seven or eight o'clock in the morning, which is warm and comfortable. The color temperature of liquid crystals is generally higher than this color temperature, so when we look at liquid crystals for a long time, our eyes will feel sore. 3.

Color for the eyes. The color of plasma can reach 68.7 billion, which can restore all the colors of nature, while liquid crystal can only reach 100 million, that is to say, plasma is much higher than liquid crystal at the color level, and the contrast is also higher than that of liquid crystal. Why is LCD TV more like a painting,Because,The black and white layering of LCD is not strong,That is, the details of the black to white range are not enough!

Frame insertion technology, dynamic eye protection. How to explain interpolation? This is the principle of animation.

As we all know, animation is actually the effect of a pair of ** that reaches a replacement speed of 20 sheets in one second. Because of the misunderstanding of the human eye, as long as 20 sheets are replaced in a second, it is like feeling that something on the ** is moving. And when looking at some liquid crystals, there will be tail when the screen is fast, and the afterimage means that it can't reflect the ** of the interpolated frame in one second, and it can't reach the corresponding sense of speed.

And the replacement speed of 240 shots per second** will make you very smooth when watching the action screen, without any unnatural feeling. Don't listen to some people in the world fool how much their refresh is, in fact, most of them are 60hz....Of course, plasma also has a disadvantage, that is, it is less clear than liquid crystal when looking at static pictures, which is related to the difference in the luminous principle of the two.

It does not affect our normal** results.

The first is to choose a good TV,The picture tube is not good, the radiation is too large,The liquid crystal is basically no radiation。 When watching TV here, pay attention to the distance is better than 2 meters, and then pay attention to the brightness of the room when watching TV, that is to say, watch TV with the lights on, and finally the time to watch TV, basically watch TV for two hours, and rest for half an hour.

Jointly certified by Beijing Institute of Ophthalmology,Tongren HospitalIPS hard screen panel for relieving eye fatigue,Now there are many brands at home and abroad that use IPS hard screen panels,Domestic Skyworth,Hisense,Foreign LG,My favorite is LG's TV。 I like the look.

Friend,In a word, plasma TV,Color、Picture quality、Dynamic effect、**Angle、Life,**、Damage to the eyes、Technical maturity is incomparable with LCD TV,It is recommended to choose Panasonic plasma TV。

Eye-friendly TV.

Product Requirements: Eye-friendly TV should meet the following aspects:

1.The brightness must reach a brightness suitable for the eyes, that is, at a color temperature of 5500-6500, with an average brightness of 100-200 (CDM2), not too dark and not too bright, which is conducive to children's eye development. [1]

2.The color must be pure, and the number of colors in the combination of the three primary colors is consistent with the natural color, so as to protect the eye and visualize the pigment to correctly identify the color. [1]

3.The dynamic TV picture should not be tailed, and the dynamic response should be consistent with the residual image cycle of the eyes to ensure that the eyes are well focused and prevent fatigue.

The differences between eye-friendly TVs and non-eye-friendly TVs are as follows:

1. Analysis from harmful blue light.

For a long time, Blu-ray has given everyone a more negative impression. In fact, it should be noted that blue light ≠ harmful: what we call harmful blue light refers to high-energy short-wave blue light concentrated at 400-440 450 nanometers.

The harmful blue light of non-eye protection TV is not only harmful to the eyes, but also manifested as:

1) Injury structure: irreversible damage to light-sensitive cells, which in turn leads to myopia, cataract and macular degeneration;

3) Poor sleep: inhibits the secretion of melatonin, affects the quality of sleep, and even makes it difficult to fall asleep.

Second, from the difference analysis of imaging principles.

a) Harmful Blu-ray: LCD TV OLED TV.

Since the LCD panel itself does not emit light, the LCD TV needs to rely on the backlight to emit light, penetrate or block part of it with the cooperation of the LCD panel and the color filter, and then use the polarizer to determine the brightness and darkness of the pixel, and finally imaging.

The point that LCD TV hurts the eyes is that this backlight will be accompanied by projecting a large amount of harmful blue light, and harmful blue light will have disadvantages on the human body.

The main role of eye protection TV:

1、Eye protection TV can often better protect the user's eyes,And it can also ensure that watching TV for a long time will not produce some adverse reactions。

2、Eye protection TV can often ensure that users are not prone to myopia,This is also considered for the health of students。

3、Eye protection TV can better alleviate visual fatigue,It will not be easy to view for a long time and produce a bad sense of fatigue。

Eye-friendly TV refers to a smart LCD TV that can automatically adjust the brightness of the screen according to the user's use time, so as to achieve the brightness suitable for human eyes**.

LCD TV, also known as liquid crystal display and LCD, uses a substance between the solid state and the liquid state, with a regular molecular arrangement of organic compounds, heated to present a transparent liquid state, after cooling the crystalline particles of the turbid solid state of the substance. The world's first liquid crystal display device was manufactured by Sharp in Japan in the early 70s of the 20th century, and was called a twisted nematic liquid crystal display.

Hehe, maybe you don't know much about the principle of liquid crystal, that's why you ask.

LCD is not like the CRT display in the past, CRT is scanned down line by line, there is a strobe, refresh dozens of times a second, as if the electric light is turned on and off dozens of times, it will be dazzling, only when the refresh rate is more than 75 times will it be significantly improved, the higher the frequency is adjusted, the more tired the eyes, and it will be more protective of the eyes.

The principle of liquid crystal and LED is uninterrupted luminescenceCCFL backlight or LED backlight,All of them are flicker-free,The amplitude of light fluctuation is very small,So everyone says (relative to CRT TV) It is eye protection。

If you have to say how to protect your eyes in liquid crystal, it should be from the perspective of color and brightness.

Too bright, bad for the eyes, will reduce the person's sensitivity to weak light.

If the color contrast is too low, it will feel blurry, and the eyes will always be in focus.

Both can increase eye strain.

The biggest harm is to look at it for a long time, it is not good to see anything for a long time, it will reduce vision, keep it for a good time, reduce eye fatigue, and help protect the eyes.

Therefore, in general, LCD TVs are harmless to the eyes, and they are all eye protection.

The plasma principle mentioned above is also a continuous light source, so the effect is similar to that of liquid crystals. (It's just that the plasma can't be very small,Generally40Inch or more,The color is more vivid,The refresh rate of the picture is very high,As a large-size TV, it is an option,But the cost is too high,Now LED TV is about the same as him,And it can be thinner and more power-saving,So LED is still the mainstream trend of the market)

At present, the color is better than the TV Samsung、Sharp、Sony、Philips、LG, etc.,The domestic color is slightly worse,And the panels are bought from abroad。

Recommended with plasma TV!

Beijing Institute of Ophthalmology and Beijing Tongren Hospital led an ophthalmological test, which verified the important role of IPS hard screen in reducing LCD TV visual fatigue from an authoritative perspective.