Thin Film Transistor Liquid Crystal Display: The cardinal principle, in order to stimulate the molecule of the liquid crystal to produce dot , line , surface and cooperate with the electric current. Formed by four components on the structure: Backlight module, Polarizer module, Glass substrate and thin film transistor , Color filter module .

Briefly speaking, resolution is the amount of dots shown on the display. And with higher resolution, the pictures on the display will be more delicate. If you buy a monitor of 1024*768 XGA , then your display card must be had 1024*768 must not be established into other analytic degree. The resolution is typically with 「1024 x 768」、「1152 x 864」、「1280 x 1024」、「1600 x 1200」,etc..

LCD is arranged and become a level by a lot of liquid crystal doses, and one point made up of three crystalline grains , analyze with one degrees of LCD of 1024 x 768 say, structure its for greater than 2,350,000 liquid crystal dose make up, so many molecule dose is it have to come, unless the manufacturer especially chooses carefully. Probably divide into A/ with the grade of general LCD A-/ B / C / D five grades . The inspection norm of general LCD with popular industry is roughly as follows:

Item of inspection	A Grade	A -  Grade	B Grade	B- Grade	D Grade
	1/4/4	3/3/5	5/5/8	8/8/10	15/10/25
Bright Dot	N≦1	N≦3	N≦5	N≦8	N≦15
Dark Dot	N≦4	N≦3	N≦5	N≦8	N≦10
Max Dot	N≦4	N≦5	N≦8	N≦10	N≦25
Dot distance	D≧15mm	D≧15mm	9Array ，allowed tight dots of single array≦5	9Array ，allowed tight dots of single array≦5	9Array ，allowed tight dots of single array≦15
Dot area	Ø≦0.3mm	Ø≦0.6m	Ø≦1.2mm	Ø≦1.2mm	Ø≦1.2mm
Joined 2 Bright dot	不允許	N≦1	N≦2	N≦3	N≦7
Joined 2 Dark dot	N≦1	N≦1	N≦2	N≦3	N≦7
Joined 3 Bright dot	Not allowed	Not allowed	N≦1	N≦2	N≦5
Joined 3 Dark dot	Not allowed	Not allowed	N≦1	N≦2	N≦5
Joined 2 dot+Joined 3 dot	Not allowed	Not allowed	N≦1	N≦2	N≦3
Joined 4  dot	Not allowed	Not allowed	N≦1	N≦1	N≦3

The signal dealt with of the computer is all a digit signal as for computer, but use the analog signal on traditional CRT, in order to communicate with CRT, the signal of CRT can be used after changing into analog signal first. So the output (D-sub ) of the general display card, it was analog signal that gave. LCD monitor received is a digit signal , but for being inclusive with the display card , so will be designed to receive the simulation signal that D-sub sent out, then change these analog signal into several signals to deal with and show through A/D Board in Monitor. But no matter the digit transfer to simulation, or simulation transfer to digit , must all have decay of the signal or lose . So LCD Monitor, for being inclusive with imitate the signal, LCD Monitor has gone on the twice originally unnecessary signal transformation, causing LCD display ability to be weaken . Add the traditional one in view of this CRT market has carried LCD to replace gradually, the display card manufacturer begins to put out the display card of all right direct output digit video-information too, that is to say DVI. If you buy a display card with DVI slot and another LCD monitor with DVI slot, the clear degree that LCD monitor shows at this moment, is this LCD picture originally designed and shown.

If there is a problem with any of these transistors, it creates a bad pixel on the display. A bad pixel divided into two kinds : Light spot and darker spot. The light spot is a permanent and bright point under any picture , Easiest to find with the black picture . A bit darker is a permanent and dark point under any picture , The easiest with the white picture to find , generally speaking relatively let people accept a bit more darkly . So a lot of monitor manufacturers all guarantee at present that there is not light spot, because some associations of dealers of panel factory repair the light spot by way of getting ready before producing the goods a bit darker. But it so long as accord with market demand no matter how the panel manufacturer deals with some bad problems generally speaking this can produce goods.

Generally speaking, mura will not cause any influence to using , The greatest reason to cause mura lies in A flaw had that the panel is made, The simplest method of judgement is to observe different angles from all black or all white And other low gray steps pictures . Then go to see carefully in terms of all kinds of , with all kinds of flaws ,The liquid crystal display has all kinds of mura. Briefly speaking, that mura is not regular at all ,it may be a very light horizontal stripe ,it can be that one yuan appears in a certain corner , etc... But these will not have any influence in using of the panels basically.

The brightness refers to the bright degree under the white picture of the display , The unit is cd/m ^ 2, Or nit . The brightness is the importance influencing picture quality directly factor, the general brightness specification is probably 250nits or 300 nits Certainly there are products of brighter specification , the light is in charge of manufacturer's guaranteeing the light and managing the life-span at present , In 30,000 hours or more than 50,000 hours, So the liquid crystal display can be quite long-lived in case of not destroyed. The brightness of the display can be adjusted to be comfortable on the vision , adjust too bright except that may be uncomfortable , will lower the light and in charge of the life-span too.

Response time was decided by the whirling time of liquid crystal, the screen becomes black from white or turns from black into white time, it needs the maximum of time of other colors, so stress this time can express the efficiency that the panel appear, called response time.

Function setting --->Catalogue time ---->Choose the time that you think it suitable by using (+,-).

Show range diagonal length (inch).