Gaia Community: sanny's Blog

MP3 screen material kind

Wed, 23 Jul 2008 03:26:39 -0000

MP3 screen material kind

The colored screen that is applied to MP3 at present mainly divides three kinds TFT, OLED, CSTN, as regards result of revealing wholly, TFT>OLED>CSTN

TFT (Thin Film Transistor membrane transistor) ,Electronic Manufacturing| Electronic Manufacturing Services| China Electronic Manufacturer| Electronics Manufacturer| Electronics Manufacturing ChinaIt is initiative matrix type LCD, commonly called as really applausing, the shortcoming is power more consumptive. Reject MP3 to use for most top-grade colors on the market at present.

OLED (Organic Light Emitting Display gives out light on the display screen organically) ,It reveals technology is different from traditional LCD display mode, it is possible to give out light (not need backlight source) more lightly and voluntarily more thinly . It is used more in domestic MP3 that OLED rejects at present.

CSTN (Color Super Twisted Nematic exceeds twisting coloredly to the tabulating type) ,It is passive matrix type lLCD. CSTN is unable to realize complete black-and-white bottom, so its color reduces ability and can not far compare with TFT.

What adopted most is OLED and these two kinds of materials of CSTN on former market, that adulterated at most is by rejecting making OLED http://www.comeinchina.com/to reject of CSTN material on the market, especially some common model's products. Discern the method There are three points:

First, the visual angle of OLED is very big, can reach angle of 170 degrees, no matter on which angle, can see script and color of display screen above clearly. Meanwhile, OLED can see all the same clearly the screen reveals, but CSTN can't reach such a result under the sunshine. Its visual angle is far from being so good as OLED, can only see the color inside from the front that is rejected, on other angles, CSTN can not clearly see either, moreover, CSTN will become dark in the lower screen of the sunlight, can't see clearly. This two heavy difference most, most apt skill that recognize too.

Second, the differentiation of color. OLED and CSTN are very easy to distinguish out on the color that is rejected, because OLED is that one kind is spontaneous and smooth, does not need the material of the China Electronics Manufacturers| Smt Electronic Manufacturing| Electronics Contract Manufacturing| Electronic Contract Manufacturing Services| Subcontract Pcb Assemblybackground light source, so seem on color evenly, the color and luster is more bright-colored, close to original result, CSTN because color rank OLED take bad compared with printing opacity, while revealing purely black picture, CSTN will still appear very slight background light, make the whole color seem lopisded, this is CSTN more typical behavior too.

Third, the price. Because OLED and CSTN have yuan of price differentials, so mark, call 128MB too or OLED of 256MB reject MP3, if price difference is http://www.av-furnitures.com/about 100 yuan, it is the big brand to make the special price to promote, otherwise cheap that mustn't buy.

LCD that Hydraulic motors knowledge reveals screen type is explai

Wed, 23 Jul 2008 03:21:31 -0000

LCD that Hydraulic motors knowledge reveals screen type is explained

4,UFB liquid crystal rejects (Ultra Fine & Bright ultra precise high bright liquid crystal rejected)

UFB( Ultra hydraulics parts Fine & Bright) English for abbreviation,reject, adopt special grating not to be designed it, can reduce the interval of picture element, in order to obtain better picture quality. Usually UFB LCD can reveal 65536 kinds of color, contrast ratio is two times that of STN, the luminance is comparable to TFT in 65536 colors, the power consumption but it is lower than TFT, can achieve the resolution ratio of 128* 160 picture element, color reduces worse. UFB is revealing technology special-purpose and coloredly of mobile phone of Samsung.

5,TFT (Thin Film Transistor, the transistor of the membrane)

TFT is a liquid crystal display of active matrix type (AM-LCD) One of the China one kind, it set up TFT like pieces of switch component of electrodes plain,can "take the initiative " One that is to screen a independent one like go on, control usually, this so-called initiative matrix (active matrix) one by one ,Because TFT remains the structure based on TN, it can offer a lot of response speed faster than CSTN, because at the same time because TFT is the active matrix LCD, can let the permutation way of the liquid crystal have memory nature, will not restore to the original state at once after the voltage disappear. TFT has been avoided to cross the production of effects, effective improvement broadcasts the ability of the dynamic picture, compared with STN TFT has the outstanding degree of saturation of color, reduces ability and higher contrast ratio, faster corresponding pace, but even if the shortcoming is power more consumptive, and the cost is higher. Most top-grade colors have rejected MP3 walkman and all used 65K color TFT screen on the market at present, that is to say what is commonly called as really applauses.

6,OLED Hydraulic pumps (Organic Light Emitting Display, gives out light on the display screen organically)

OLED reveal liquid crystal no longer ' I.e. LCD) Category,OLED because their one's own one performances superiors many kinds of, it recognize as lay there aren't mainstreams monobasic in engaging in already. OLED reveals technology is different from traditional LCD display mode, it is possible to give out light (neither need backlight source) more lightly and voluntarily more thinly Visual angle, high and clear, responds the fast, antidetonation performance that energy consumption is low, low and gentle excellently that, it is wide, flexibility and environmental protection are designed etc.. By the look of long-term, OLED is undoubtedly a new technology which represents the future trend, but OLED still exists and uses the short-lived, difficult defect of screen maximization at the present stage. Common MP3 walkman which adopts OLED on the market at present, mostly in order to reveal double-coloredly (blue and yellow) , Kobelco cranes partsIt is the medium-to-high grade color that rejects the products.

How to maintain the bar code printer to print the head

Mon, 19 May 2008 04:26:12 -0000

How to maintain the bar code printer to print the head
The bar code printer is in there is extremely extensive application such as the production line in all trades and professionsing, the hospital, the

storage department of the logistics, it waits a moment in a lot of places to need high load to print and serve as required to retail the supermarket.

So, the normal operation of the bar code printer, to having essential each applied environment. Especially to the workshop of all-weather

incessant flowing water operation of 24 hours, any link - -Certainly include the bar code printer too - -Go wrong, the whole production line will

be paralysed, direct loss arising from this is countless.
It is a very important part of all parts of the printer to print the head, is influencing quality of printing directly. Because professional

temperature sensing type or heat transfer to bar code of printing etc. plane print head to be very easy to decrease, maintain more, cause, print,

work abnormal while being easy very. Bar code printer adopt temperature sensing type print and not hot to transfer to person who print print

way mostly, the two compare, temperature sensing type print way to wearing and tearing to print head, pollute intensity to be heavy. A lot of

users think and maintain the machine that has increased a sum of expenditure, this kind only pays close attention to putting into and using the

bar code printer to bring the losses of a certain degree to production of enterprises in order to lead in a short time, will increase the production

cost at the same time. Through professional test, print the meagre expenditure that the head needs in fixed and reasonable maintenance and

maintenance, the ones that were saved are several times even dozens of times of maintenance of equipment or update cost.
According to the introduction of professional and technical personnel of technological company of zebra, except the destruction that people

are, for example nail contact, print head scratch, bar code printer damage to print head print wearing and tearing that bring from high speed

mainly directly, the high-temperature environment enables the paper of temperature sensing ' Temperature sensing type printer) Or typewriter

ribbon ( Hot ext. printing type printer) Dirty to print head, high pressure or whom static lead to the fact print the crack and out of shape of head.

Print head once damaged, light label that print have white line (print head have one platoon yuan order dirty or scratch, pursue the arrow point

to point as follows) ,The heavy label that prints is fuzzy can't bear, the reading device is unable to read the data.