As a visually-oriented television, picture quality is always its most important issue. For today's LCD TVs, the picture quality is mainly determined by two factors, one is the TV panel and the other is the image processing chip/image processing technology. If the TV picture is compared to a jade carving, then the TV panel is a carved stone, and the image processing chip/image processing technology is a carving craft. As the saying goes, clever women can't be without rice, and there is no good image processing technology to use the good panel, the quality will not be good to go.
TV panel consumers will always hear promoters when they purchase TVs, or see various types of advertisements such as A+ screen, A++ screen, X-ray crystal panel, IPS hard screen, etc. screen. However, in reality, consumers do not want to know all kinds of complicated panel types, nor do they want to know the working principles of various screens, and they do not even want to know the industry information of TV panels. Articles that elaborate or cover the depth of panel knowledge are not what consumers want to see. Therefore, the author will simply talk about some of the panel names often mentioned in the promotion.
IPS hard screen has many advantages and disadvantages
For many consumers, the IPS hard screen should not be unfamiliar. This type of screen has long been used in flat-screen TVs and mobile phones. Compared with general LCD screens, IPS hard screen liquid crystal molecules are arranged horizontally and the structure is more stable, and colors can be accurately and more accurately restored, revealing a richer sense of depth. In addition, IPS hard screen also has the advantages of high response speed, large viewing angle, and no distortion.
IPS hard screen has many advantages
However, due to the horizontal arrangement of the IPS hard-screen liquid crystal molecules, the panel light transmittance is low, and it is necessary to increase the backlight brightness in order to achieve sufficient brightness. The problem has also arisen. High backlighting has exacerbated the light leakage at the edge of the screen, making the purity of black in the picture insufficient, and poor contrast performance. In addition, the bright backlight also increases the power consumption of the TV to some extent.
In general, although IPS hard screens have defects in contrast, they have excellent performance in terms of color, response speed, picture stability, and view size, which is a very good screen.
A/A+/A++ level screen can only be used as a small reference
There is no direct relationship between the type of A/A+/A++ screen and the screen, which is just a standard for LCD TV panels. In fact, according to the quality of the LCD panel can be divided into A, B, C three levels, the level of distinction is based on the number of dead pixels. The quality of A-level, B-level, and C-level panels has declined. Normally, only the quality of A-level panels will be used as LCD TV screens. That is to say, LCD TVs with A-class panels are only qualified.
As for the A++ class, A+, A are three small classes in the class A panel. In general, the number of dark spots on the A-class panel is less than 3, the number of bright spots is also less than 3, and the sum of bright spots and bad spots is less than 5. The number of dark spots on the A+ class panel is less than 3, and the entire screen has no bright spots, and the number of dead spots is less than 3. The A++ class panel has neither bright spots nor dark spots and the number of dead pixels is zero. And high-level panels tend to have more uniform brightness, more saturated colors, and better image color reproduction. However, this level can reflect the brightness uniformity and color saturation of the panel at the most. Other indicators, such as screen response speed, contrast, sharpness, etc., have nothing to do with this level.
X super-crystal panel Sharp TV dedicated performance
X super-crystal panel is a CPA panel produced by Japan Sharp Corporation and belongs to a soft screen. This panel has a unique arrangement of liquid crystal particles and unique light transfer technology, which can precisely control the direction of deflection of liquid crystal molecules, effectively increase the utilization of light and the opening ratio of liquid crystal molecules, so that more light can pass through the liquid crystal panel, and can reduce The reflection of the TV increases brightness and contrast and can increase the viewing angle. As a result, X-ray crystal panels have excellent performance in suppressing light leakage from the backlight.
As the liquid crystal molecules in the panel have large openings, the pixels in the actual display will be enlarged, which makes the screen of the X-ray crystal panel softer, but the corresponding sharpness performance is not very good.
to sum up:
For the panel, some Japanese or Korean TVs do have some advantages. At present, some Chinese-made machines that pursue outstanding image quality also use imported panels. For example, brands such as Xiaomi TV, LeTV, and KKTV use IPS hard screens produced by LG. Some of the outstanding panels that some vendors have vigorously promoted have certain strengths, but at the same time they are not as perfect as they advertise. It can't be said that certain panels are necessarily good. Nor is it that screen indicators or levels are high. Consumers see the screen effects most accurately.
IPS hard screen has many advantages and disadvantages
For many consumers, the IPS hard screen should not be unfamiliar. This type of screen has long been used in flat-screen TVs and mobile phones. Compared with general LCD screens, IPS hard screen liquid crystal molecules are arranged horizontally and the structure is more stable, and colors can be accurately and more accurately restored, revealing a richer sense of depth. In addition, IPS hard screen also has the advantages of high response speed, large viewing angle, and no distortion.
IPS hard screen has many advantages
However, due to the horizontal arrangement of the IPS hard-screen liquid crystal molecules, the panel light transmittance is low, and it is necessary to increase the backlight brightness in order to achieve sufficient brightness. The problem has also arisen. High backlighting has exacerbated the light leakage at the edge of the screen, making the purity of black in the picture insufficient, and poor contrast performance. In addition, the bright backlight also increases the power consumption of the TV to some extent.
Backlight light leakage is very common in LCD TVs
In general, although IPS hard screens have defects in contrast, they have excellent performance in terms of color, response speed, picture stability, and view size, which is a very good screen.
A/A+/A++ level screen can only be used as a small reference
There is no direct relationship between the type of A/A+/A++ screen and the screen, which is just a standard for LCD TV panels. In fact, according to the quality of the LCD panel can be divided into A, B, C three levels, the level of distinction is based on the number of dead pixels. The quality of A-level, B-level, and C-level panels has declined. Normally, only the quality of A-level panels will be used as LCD TV screens. That is to say, LCD TVs with A-class panels are only qualified.
A Konka TV Promos A++ Screen
As for the A++ class, A+, A are three small classes in the class A panel. In general, the number of dark spots on the A-class panel is less than 3, the number of bright spots is also less than 3, and the sum of bright spots and bad spots is less than 5. The number of dark spots on the A+ class panel is less than 3, and the entire screen has no bright spots, and the number of dead spots is less than 3. The A++ class panel has neither bright spots nor dark spots and the number of dead pixels is zero. And high-level panels tend to have more uniform brightness, more saturated colors, and better image color reproduction. However, this level can reflect the brightness uniformity and color saturation of the panel at the most. Other indicators, such as screen response speed, contrast, sharpness, etc., have nothing to do with this level.
X super-crystal panel Sharp TV dedicated performance
Unique liquid crystal structure of X-ray crystal panel
X super-crystal panel is a CPA panel produced by Japan Sharp Corporation and belongs to a soft screen. This panel has a unique arrangement of liquid crystal particles and unique light transfer technology, which can precisely control the direction of deflection of liquid crystal molecules, effectively increase the utilization of light and the opening ratio of liquid crystal molecules, so that more light can pass through the liquid crystal panel, and can reduce The reflection of the TV increases brightness and contrast and can increase the viewing angle. As a result, X-ray crystal panels have excellent performance in suppressing light leakage from the backlight.
X-crystal panel offers higher contrast
to sum up:
For the panel, some Japanese or Korean TVs do have some advantages. At present, some Chinese-made machines that pursue outstanding image quality also use imported panels. For example, brands such as Xiaomi TV, LeTV, and KKTV use IPS hard screens produced by LG. Some of the outstanding panels that some vendors have vigorously promoted have certain strengths, but at the same time they are not as perfect as they advertise. It can't be said that certain panels are necessarily good. Nor is it that screen indicators or levels are high. Consumers see the screen effects most accurately.
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