The main parameters of the LCD module which

1 contrast
Optional LCD panel manufacturing control IC, the filter and the orientation film or the like accessories, and the contrast of the panel is related to general users, 350:1 sufficient contrast can be achieved, but the contrast level in the professional field can not to meet the needs of users. Relatively the CRT display easily reach 500:1 or higher contrast. Only high-end LCD monitors in order to achieve this way to such a degree, the contrast is difficult to be accurately measured by the instrument, so pick the time or want to personally go to the job.
Hint: The contrast is very important, it can be said that the more important indicator of a select LCD than the highlights, when you understand your customers to buy the LCD is used to the entertainment watching DVDs, you can emphasize the contrast is more important than the no dead pixels, we see streaming film source brightness is not, but want to see the character scenes contrast, hair gray to black texture changes rely on the level of contrast to visualize. ViewSonic VG and VX has been emphasizing the contrast indicators and, VG910S 1000:1 contrast ratio, we then take this and Samsung a double-headed graphics card comparison test, the Samsung LCD is significantly higher than that, however, we are interested can try. 256 grayscale test software test head to look more gray grid that is a good contrast!ЖК-модули
2, a luminance
LCD is a range between the solid and liquid material itself is not light, requires the use additional light sources Caixing. Number of lamps relations with the brightness of the LCD monitor. The first liquid crystal display only two lamps up and down to the present, popular type minimum of four lamps, high-end six lights. Four lamp design is divided into three display forms: one each of the four edges of a lamp, but the drawback is that the middle will appear the shadow, and the solution is on to the next four lamp flat arranged the last one is placed in the form of the "U" shape, in fact, two lights two lamps in disguise. The six-tube design actually used three lamps, three lamp manufacturers are bent into a "U" shape, and then placed in parallel to achieve the six lamp effect.жк модуль