#colorrendering

Unfortunately for the fans of plasma TVs, today all the leading companies have refused to further develop this direction. New plasma models have not been developed for several years. Nevertheless, these TVs are still available in the market. Therefore, comparing them with the most popular LED TVs seems appropriate. The viewing angle of plasma and LED TVs is approximately the same and is usually 176-178 °. This is more than enough for comfortable viewing from anywhere in the room. The response time for the plasma TV screen is almost instantaneous. Therefore, the effect of the plume is completely absent even for high-dynamic scenes. However, the response time of the matrix in modern LED TVs also averages only 8-9 ms. Accordingly, the display of high-dynamic scenes is also not a problem for them. The image of LED TVs is softer compared to plasma TVs.

Factors in favor of LED TVs

This list includes: - The LED TV is well suited for viewing in brightly lit rooms. Plasma TV uses glass and behaves worse even when using a highly effective anti-glare filter. The high brightness of the LED TV further enhances this advantage. - The LED TV is well suited for use as a monitor (Internet, image processing, etc.). As you know, the memory effect is not in the LED. This effect leads to the image retention on the screen. Therefore, the LED TV is ideal as a monitor. Unfortunately, the plasma TV has the effect of an image retention.

In addition, plasma displays require dithering due to gray level limitations. Dithering (from the old English "didderen") is the addition of a primary pseudorandom noise signal in a specially selected spectrum during the processing of digital signals. It's used to process digital audio, video and graphics data to reduce the negative impact of quantization. Because of this, individual pixels are distinguishable on the display at close range.

Therefore, a plasma TV is inconvenient to use as a monitor. - LED TVs lineup includes models with a small diagonal; Unfortunately, plasma Full HD is begins with only 42 ". - LED TV provides very saturated colors.

Factors in favor of the plasma TV

This list contains: - Plasma TV is designed primarily for viewing high-quality content. They more fully reveal all the advantages of high-quality images. - The plasma TV is great for viewing in muted light or in the dark. Under these conditions, the image opens in full. - Plasma TV is ideal for home theater. Viewing movies in high quality is the main function of a plasma TV. Plasma TV creates a voluminous 2D effect, has a deep black level, is characterized by the absence of a light flash and has excellent contrast transitions.

- Plasma TV is preferred in the segment of models with large diagonals (from 50 to 65 inches). Obviously, a 65-inch LED TV for home theater will be a bit strange choice. - Plasma TV provides a very natural color rendering with bright, rich and deep colors.

Conclusion

A modern TV is one of the most popular and sophisticated home appliances. The competition in this segment is also very high. Therefore, companies increase the competitiveness of their models, expanding their functionality and improving quality by using innovative technologies. As a result, today the market simultaneously offers a huge number of different models, the cost and functionality of which varies in a very wide range. Therefore, choosing an optimal TV is often not an easy task. Of course, it depends the technical values. Additionally, the professional calibration additionally improves image quality, but it's quite complex and expensive. However, many TV settings are quite accessible to the user.

Black level (MLL, Minimum luminescence level) and brightness

MLL corresponds to black level on the screen when a signal equals "0" nit. Brightness corresponds to the screen brightness TV when a signal equals 255 nit. Black level and brightness are measured together with the help of ANSI method ("chess board" - the alternation of black and white areas). This method measures brightness in each square. Its value corresponds to the arithmetic average value of brightness in the white and black areas.

Contrast

Contrast represents the difference between the arithmetic mean of the black and white areas. The value in black areas conditionally equals "1". Of course, the image quality depends inversely proportional to this ratio. In fact, contrast provides provides visualization of color gradients. For comparison, ANSI-contrast IPS matrix is ~ 1 000: 1, S-PVA - 3 500: 1, UV²A - 5 000: 1, the plasma - 12 000: 1.

Color rendering

This value characterizes the deviation of the output signal from the input signal. Respectively, the image quality is inversely proportional to the deviation. According to experts, the eye perceives deviation DeltaE > 3. DeltaE = 0 corresponds to best possible value. For example, ViewSonic Professional Monitor provides Delta E = 2 сolor аccuracy.

Viewing angles

The matrix viewing angle affects the degree of color distortion when viewing at an angle. This dependency is inversely proportional. S-PVA matrix has minimal angles. OLED, QLED (quantum dot technology) and plasma panels provide the highest values. The values of the viewing angles are measured in degrees. Today, values above 170 degrees vertically and horizontally are considered normal.

Dynamic and screen resolution

Almost all TVs have the static resolution of 1080 lines (1920 x 1080 pixels). Dynamic resolution characterizes the image quality during fast movement in the frame. But, the values of a statistical and dynamic permission are greatly different. Loss of information when playing highly dynamic scenes is typical for LED models and is solved with the help of flickering backlight, the frame interpolation, etc. But using MCFI has key features when connecting TV to PC. Screen resolution is very important. The image clarity on the screen depends on the resolution. Large displays require more high resolution. Modern TVs provide the format resolution of HD ready (1280 x 720 pix), Full HD (1920 x 1080 pix) and Ultra HD or 4K (3840 x 2160 pix). The video at the end convincingly demonstrates the dependence of the quality playback on the screen resolution. Video resolution must match with the screen resolution for high quality image. Otherwise there is a need in signal interpolation with the help of program methods. Interpolation provides coordination of the image with the physical resolution of the matrix screen. The video format depends on the type of input signal (air or cable television, DVD or Blu-Ray format, etc.).

Audio format

Most of the budget TVs support 2.0 format that uses two wideband speakers without a subwoofer. Unfortunately, it very bad transmits the low-frequency component of the sound. Therefore, software developers use different ways for improvements of acoustic performance. Format 2.1 uses a subwoofer that provides acceptable playback quality for low frequencies. Acoustical systems of 4.1 or 5.1 formats are external.

3D TVs