Why Are You Buying Fake Tianma?

Why Are You Buying Fake Tianma?

iPhone Screen Tech, Quality Control

Why are you buying fake Tianma?

As we all know, the quality of Tianma LCD is great ,it is the technical structure of LTPS-TFT. It`s a new generation technical product derived from TFT LCD.

The LTPS screen is manufactured by adding a laser processing to the conventional amorphous silicon (a-Si) TFT-LCD panel. The number of components decrease by 40%, and connection part decrease by 95%, which greatly reduce product failure .

This screen has greatly improved in terms of energy consumption and durability, with horizontal and vertical viewing angles up to 170 degrees, 12ms for display response time, 500 nits of brightness, and contrast ratio by 500:1.

Therefore, many trade companies claim that they sell tianma LCD ,new tianma or old tianma ,no matter what low quality LCD it is . While in fact , there is only one TIANMA. Longteng LCD is also LTPS-TFT structure, display effects is weaker than Tianma, but better among all low -cost screens

As shown above , we can distinguish the LCD brand when we take apart the backlight and check the circuit diagram on the top of the LCD,the line of Longteng LCD is circular structure, while the Tianma is grid. It`s easy to distinguish these two LCDs in this way , so you will not being cheated

Summary: As a company , honesty and integrity are the core , also the principle of cooperation. Later, we will let you know how to distinguish Sharp, BOE, AUO and other LCDs, please pay attention to our CINO homepage.

Why Your Screen Looks Bluish

Why Your Screen Looks Bluish

iPhone Screen Tech

Why your screen looks bluish

Smartphone displays now are tested in RGB color mode. R is RED, G is GREEN, and B is BLUE. In the RGB model image , each RGB pixel component is assigned an intensity value which is in the range of 0-255.

By using only three colors , RGB imagemakes them composedin different proportions, showing 16777216 colors on the screen.

Different LCD determines the mixing ratio of display color .Many LCDs on the market are either blue or red, or white , this is determined by the combination of backlight , LCD and polarizer . Same materials produced in different batches may also have inconsistent hue issues  

Different LCD determines the mixing ratio of display color .Many LCDs on the market are either blue or red, or white , this is determined by the combination of backlight , LCD and polarizer . Same materials produced in different batches may also have inconsistent hue issues

1. K Numerical Value Standard

The display shows differently when K value varies :  

1. Absolutely white at 6500 2. Cool color > 6500 3. Warm color <6500

As shown in the graph below, When K value is between 6500-7000,the displayshowscool white, and the color is evenly distributed. If the backlight brightness is sufficient, the LCD color will be very close to the originalLG one

If between 6000-6500,it shows warm white , color is evenly distributed. If the backlight brightness is sufficient, the LCD color will be very close to the originalSharpone

The LCD color looks nice when K value is between 6000-8000 , it will be starting to get blue when higher than 8000 , it will get extremely blue , even glaring when higher than 9300

Therefore,the perfect range is 6000- 8000.

2. K Numerical ValueComparison

At present, many suppliers and factories just use the naked eyes to detect the quality of color&brightness. Cino testseach screen based onthe Kvalue &CD value . We regard it as qualified when it is within the range specified by our company , otherwise ,it belongs toinferior-quality product

3.K Numerical Value Form

Our screenis divided into Class S and Class A .
Class S is Tianma LCD, ESR highlight backlight,original polarizer, A++ level .
Class A is Longteng LCD, ordinary backlight, supercopy polarizer, A++ level .

Summary:The reason why your suppliers are unstable on quality is that because their test standard is not digitized, but visually observed. The standard of each tester is different, which will result in different color& brightness . CINO uses data-based standard to detect products to guarantee the quality of your orders