Key Performance Factors Of A LCD TV
Key Performance Factors Of A LCD TV
Among different types of TVs, regarding TV history, LCD TVs have won the majority of the market instead of CRT, Plasma, and OLED.
The liquid layer inside an LCD TV controls the light flux through the RGB film. Although LCD TVs are mature in the market, it is good to know and understand some key factors in how an LCD TV performs well.
Guangzhou Mianhong is an LCD TV manufacturer with 12+ years of experience. Mianhong aims to provide a TV OEM solution for those wanting to start a TV business and build an owned and unique TV brand. Mianhong will teach how a standard LCD TV should perform in this article. Of course, Mianhong will produce good quality TV products with all the factors above the industry average.
- Resolution(Display Volume), Screen Resolution VS Image Resolution
Resolution is a scale to measure the total resolution. In a modern TV(Not an old Black/White TV), a pixel typically represents a sum of Red Dot, Green Dot, and Blue Dot. Among pixels to pixels, there is a distance, and it is called pitch. More pixels mean better resolution, a critical display performance factor for an LCD TV.Be aware that there are two kinds of resolution, and mixing them up is not a good idea. The first type is called screen resolution, and the second type is called the image resolution.
The screen resolution refers to how many pixels are in an LCD TV screen and is measured by how many pixels are displayed vertically and horizontally.
For example, a FHD LCD TV with 1920 x 1080 resolution has 1920 pixels horizontally and 1080 vertically.
The image resolution refers to the size of a digital image, and it is a scale for signal and the format of the system. PAL system displays video with 720 x 576 resolution.
It would be not very clear if the screen resolution could not match the image resolution. For example, a 4k resolution LCD TV playing a low-quality video(360p) can not beat a 4k resolution LCD TV playing a 4k video.
|1280 x 720
|1920 x 1080
|2048 × 1080
|3840 x 2160
|7680 x 4320
Mianhong produces HD, FHD, 2K, and 4K TVs. All models support OEM services. Actual resolution and display quality as PPI is guaranteed.
Brightness refers to how bright a LCD TV can show to our eyes. A unit scale cd/m^2 is used to describe brightness. For most of the customers, a 50 – 70 cd/m^2 is enough for watching TV shows. An insufficient brightness may result in a bad experience. For example, the LCD TV becomes a mirror so customers can see themselves from the LCD TVs when they are watching TV. The brightness from the TVs is less than the environment brightness.
Contrast is a ratio to measure the difference between the max brightness and the min brightness.
For example. if a LCD TV has a max 250 cd/m^2 and a min 1 cd/m^2, then the contrast would be 250:1.
Contrast is important becasue it helps eyes to identify how well a gradient image is displayed.
The Color depth is a crucial unit to describe the total color a LCD TV can display. It is a major factor affecting the TV price. There are 3 types of TV color depth on the market.
|8-bit + FRC
The right image shows a triangle, a “color space.” The color space defines how deep(reddest, greenest, bluest) should be. A 10-bit TV can display 1.07 billion colors within the color space. On the other hand, An 8-bit TV can only display 16.7 million within that color space. More color depth means better color reproduction and more fluent color transition.
Response Time refers to how fast each pixel in a LCD TV reponse to the change of voltage, aka the time to change from dark to bright or vice versa. A good LCD TV response time should be less than 10 ms. Some video players requires a better response time so they usually buy a gaming monitor with less than 3 ms. A short response time is important, otherwise there would be a shifting when we are watching dynamics videos.