LCD and CRT performance parameters are different from each other, reflecting many aspects, including color, brightness, resolution, perspective, contrast interface and other aspects.

LCD size and CRT difference, we usually refer to the size of the display is a diagonal distance, and the size of the CRT and LCD measurement standards are not consistent.There is a certain difference between the standard size of CRT and the actual size of visual area. The actual visual area of CRT display with size 15 is generally around 14, while the visual area of CRT display with size 17 is only around 16-16, so the actual size is smaller than the standard size.However, the LCD screen is different. If the actual size of the LCD screen is, what is marked must be the same. There will be no difference.Common TFT screen sizes range from 6.4 to 15.1.


LCD and CRT color and color contrast, the LCD color level is more diverse, but the two subcategories (tft-lcd, dstn-lcd) or big difference.The color of tft-lcd generally includes 16-bit 64K and 24-bit 16M. The brightness and contrast of tft-lcd are relatively high, so the color it displays is also very bright. The color type of dstn-lcd is only 256K.


LCD and CRT resolution comparison, we usually say the resolution is the number of pixels on the screen each row, column, we are usually expressed by matrix column, each pixel in the row can be accessed separately in the computer.So the difference between LCD and CRT resolution is that it is generally not free to adjust, are through the manufacturer uniform Settings and provisions.

Brightness contrast between LCD and CRT

As we all know, the brightness of an LCD screen directly determines whether the screen is bright or not.Early as a result of the brightness is not high enough, the LCD screen always gives a person a kind of dim feeling.

Now the LCD screen brightness compared to the previous has been improved a lot, most of the environment, 200cd/m2 (nite) above the product can almost meet their use requirements.                                   

Now many manufacturers will cheat on the standard brightness value, and some products with general quality will have uneven brightness, that is, the brightness value around the screen will be lower than that in the middle part, so we need to pay attention to whether the brightness is uniform when buying.

The TN and STN (DSTN) on the market for many liquid crystals are not brighter than 100cd/m2.Nowadays, the screen brightness of 5-6" pseudo-color STN commonly used in the market is basically between 130cd/m2, while the normal brightness of TFT screen is above 150cd/m2.

Contrast between LCD and CRT

Through the contrast of the LCD screen, we can see whether the display can show the rich color levels.The higher the contrast, the brighter and more layered the display.Normal screen, the contrast ratio is above 120:1 is OK, but if the user needs the picture quality requirements are higher, you can also choose more than 300:1 products.


However, it is worth noting that the higher the brightness and contrast, the better the color of the display, because in the actual use of the process, the brightness and contrast need to match exactly, to ensure that the image and color reduction is more real.

The difference between LCD and CRT performance parameters