4.5 inch qhd tft display manufacturer

Display screen is one of the most important parts of a Smartphone. Your Smartphone display screen is a very complicated device and there are various technical terms and things associated with it which most of the people don’t know even when they buy a smartphone. So here in this article I will explain everything about a smartphone display screen so that you can make an informed decision when you buy your new phone.

First we talk about the size of a smartphone screen. The size of a smartphone screen is always measured diagonally. Two smartphones with same screen size e.g. 5-inches can have different dimensions as the screen of one can be taller and in other it can be wider keeping diagonal size the same.

Screen or display resolution is the total number of pixels on your screen which are used to display image or text on your screen. The screen resolution is specified as N1width x N2height where

For example resolution of 1024 x 768 pixels will have total of 786432 pixels. Greater the resolution of a display screen the greater will be the clarity of an image, graphics or text. If your screen has resolution equal to or greater than 1280 x 720 pixels (720p) then it is known as High Definition (HD). Resolution of 1920 x 1080 pixels (1080p) is known as True HD. So if you want greater picture clarity go for smartphone that has high resolution display or HD display screen.

PPI or Pixels per inch is known as pixel density of a display screen. It is number of pixels present or packed in one inch length of your screen which can be either vertically or horizontally. PPI is very different from Pixel Resolution which is independent of the area of a screen.

Two display screens with same resolution but different screen size have different PPI or pixel density. So if we have two display screens S1 and S2 having same resolution of 720p i.e. 1280 x 720 pixels but different screen size of 4.5 inches and 5 inches respectively then screen S1 will have more PPI / Pixel density as compared to screen S2.

Higher the PPI the better is clarity, crispness, sharpness of the text and images. You will see every fine detail in an image if your screen that has higher PPI. It must also be noted that human eye can see details upto 400 PPI i.e. you cannot differentiate in the fineness or detail in an image on two screens having pixel densities of 400 ppi and 450 ppi. So if you want a smartphone with great picture quality then you have to take Pixel density (PPI) also in account along with resolution of display screen.

Next we talk about the technology behind your display screen. There are different types of technologies that are used to make smartphone display screen which generally includes TFT LCD, IPS LCD, AMOLED / Super AMOLED.

Thin Film Transistor Liquid Crystal Display or TFT LCD is a relatively older type of display screen technology that is cheap to manufacturer and is used in budget smartphones, TVs, computer monitors, handheld video games, cameras, navigation systems, projectors etc. It is a variant of traditional LCD display technology and TFT LCD uses thin film transistors (TFT) to improve the image quality and contrast of a regular LCD screen.

IPS (In-plane switching) is also a technology for LCDs or Liquid Crystal Displays. This display technology is used in iPhones and many other current mid to high-end smartphones. IPS LCD offers most accurate color reproduction, clear images and stable response time. They require relatively more power to operate as compared to AMOLED and TFT LCD screen.

AMOLED stands for Active Matrix Organic Light Emitting Diode or Active Matrix Active Matrix OLED. An AMOLED display consists of OLEDs or Organic LEDs that light ups when current passes through them. AMOLED is relatively newer display technology that produces brighter, sharper images with vibrant colors.

AMOLED display consumes significantly less power as compared to others.A Super AMOLED display is one which integrates touch sensors or touch device into it which makes the whole display screen very thin and is used in high-end smartphones from Samsung.

The display screen may come with 16M, 256K colors or so no. Here 16M denotes 16 Million colors and 256K means 256 thousand colors. A display screen with more colors will produces accurate color production, better images and life like videos.

This layer of Protection Glass sits above the display screen and it protects your display screen from getting damaged. The two most widely used protection glass are Gorilla glass and Dragontrail glass. Fully Laminated OGS or One Glass Solution is another technology that integrates touchscreen device and protection glass in one unit to provide thinner screen with vibrant colors and richer display with excellent visibility. The most common example of fully laminated OGS technology is Concore glass from Corning.

The "p-display" nomenclature used in this article refers to the number of pixels displayed across the width of a given phone"s screen. Earlier phones with lower than 720p (lower than HD ready resolution) are not included in this listing. The lists below are dynamic lists and may be sorted into alphabetical order by clicking on the "sort icons" at the top of the first column.

Product Introduction: TS7045Q-7 is a 4.5 inch TFT LCD IPS Display. We are supplying this 4.5 Inch IPS display for many years for EU and US market for POS , medical, robotics, appliance, home security and so on. We can support you in OEM and ODM.

CTIA 2013 seems to be dedicated to some of the lesser-known names in the US wireless industry, so it"s fit that Chinese manufacturer Coolpad should take advantage of the situation to steal the show. Indeed, we were able to take a look at the phone maker"s upcoming stateside model, the lower-end Quattro II 4G. In the past year, its predecessor cranked out roughly a million units on MetroPCS, and Coolpad is hoping to build upon that success to get a foothold in the US. This sequel, which offers stock Android 4.1.2 with a 4.5-inch qHD TFT display, 1.2GHz dual-core Qualcomm MSM8930 chip, 5MP rear camera and VGA front-facing cam, 1GB RAM, 4GB internal storage and a 1,800mAh battery, isn"t going to satisfy the tastebuds of power users or high-end flagship seekers, but it"s a quality option for those who aren"t planning to spend a ton of money on a decent handset. Given the intended audience, the device is perfectly solid with reasonable performance; we appreciated the company"s use of a textured back cover. One nitpick: despite our best efforts to get rid of fingerprints, smudges remained with no hope of removal in sight.

Not least, we also got a sneak peek at the Coolpad 8920, which was released in China this past month and is the first TDD-LTE / FDD-LTE hybrid phone in China. The 8920 is designed primarily for China Mobile and China Unicom, but the five-mode, ten-band device also uses 900/1800/1900 GSM/ EDGE/HSPA+. The stock Android 4.1 device has a little more premium feel than the Quattro series, with a glossy white plastic casing (it"s also available in black, we"re told) that feels a little slippery in the hand. The build quality is a little above average: it doesn"t feel cheap at all, but it"s also not as solid as many of the flagships we"re used to handling. Specwise, it offers a 1.7GHz quad-core Snapdragon S4 Pro, 1GB RAM, 5-inch 720p display, 8MP rear camera and 3,000mAh removable battery. We have galleries of both devices above the break for you, if you didn"t already check it out.