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IPS displays are highly popular for their eye-catching color and wide viewing angles. In fact, Lenovo now offers more , tablets and monitors based on In Plane Switching or IPS display technology than with the earlier TN (Twisted Nematic) construction – although TN models are still prized by some users, such as hyper-competitive PC gamers.
So, what does an IPS display really deliver? Which laptop and monitor buyers are most likely to benefit from IPS technology? And why do some users still prefer older-style TN displays? Read on for answers to these and other questions.
IPS vs. TN displays: What’s the difference?
IPS and TN are different kinds of TFT LCDs (Thin Film Transistor Liquid Crystal Displays). At the simplest level, LCDs rely on the light modulating properties of energized liquid crystals – along with coordinated light filtering polarizers (both behind and in front of the crystals) -- to control what appears on the screen. By applying voltage to each crystal (or not), light is made to pass through the polarizers (or not). When these changes are managed at microsecond intervals, you get smooth moving images.
LENOVO OFFERS DOZENS OF LAPTOPS WITH IPS DISPLAYS:
THINKPAD: THE WORLD’S #1 BUSINESS LAPTOP
IDEAPAD: STYLISH LAPTOPS FOR WORK AND HOME
YOGA: FLEXIBLE 2-IN-1 LAPTOP/TABLET COMBOS
TN and IPS displays differ in how their light-influencing polarizer layers are aligned. If this sounds too technical, just know that when polarizers are aligned similarly, light can pass through, but when they’re put in different orientations, light is blocked. And when you place liquid crystal molecules between the polarizer layers and apply voltage, interesting things happen:
TN polarizers are aligned perpendicular to each other. Without voltage, the liquid crystal molecules naturally “twist” the light so it can go from a vertically-aligned polarizer, be twisted in the crystals, and then pass through the associated horizontal polarizer. But if you apply voltage (in other words, if you disrupt the crystals’ natural properties), the light no longer gets twisted and the perpendicular polarizer orientations block light from passing through.
IPS polarizers are aligned in parallel, which would normally allow all light to pass through. But again, the resting liquid crystal molecules twist the light to disrupt the normal flow. So IPS displays work in an opposite manner from TN ones. Rather than the application of voltage blocking light, the voltage lets light get through. It prevents the liquid crystals from twisting the light so it can pass through the parallel polarizers as usual.
There’s a lot more to it, of course. But this gives you the general idea of how TN and IPS displays differ. And it’s these differences that give each type of display distinct advantages for specific customers. For example, the parallel polarizer alignment on IPS displays is one reason they can be viewed from extreme angles compared to their TN counterparts. Meanwhile, the way TN displays let light through by default (without applying voltage to disrupt the flow) is one reason TN displays have faster response times and refresh rates than similar IPS models.
Do I need IPS?
Your need for IPS technology depends on how you will use your laptop display or standalone monitor. Here’s a quick run-down of the relative advantages of IPS and TN displays. How does each type match your requirements?
CHECK OUT LENOVO’S IMPRESSIVE LINE-UP OF IPS MONITORS:
THINKVISION MONITORS FOR OFFICE AND PROFESSIONAL USE
BIG, BRIGHT LENOVO MONITORS FOR HOME AND FAMILY
THINKCENTRE MONITORS (TINY-IN-ONE TOUCHSCREENS)
Advantages of IPS displays and IPS monitors
IPS displays and monitors are known for having several advantages:
Wider viewing angles: The parallel orientation of an IPS display’s crystals and polarizers make them far easier to see from extreme angles, such as for viewing by large groups. Only those farthest to the side of the display will see any big diminishment in color and contrast.
Greater variety of colors: Most IPS displays feature 8-bit panels (8 bits red, 8 bits green, 8 bits blue), so they can better reproduce the full 24-bit color palette of a typical graphics processor (8 x 3 = 24). Many TN displays have 6-bit panels (6 x 3 = 18) and use extra steps to emulate the full color range.
Improved color accuracy: IPS displays are generally built to meet a higher price point than TN ones and use better backlights capable of generating far wider color gamuts (for example, Adobe RGB versus the older sRGB). The additional hues and shades allow more realistic, true-to-life colors.
One perceived disadvantage of IPS monitors compared to TN ones is their relatively slower refresh rates (the time needed to reconfigure each on-screen image) and response times (the delay when a pixel changes from an active to inactive state). But these delays are measured in milliseconds, so the vast majority of users – say, everyone but advanced PC game players -- will not be impacted. IPS is plenty fast enough for streaming movies, making video calls, and so on.
VERSATILE LENOVO TABLETS HAVE IPS DISPLAYS, TOO:
MIIX SERIES MODELS
ANDROID TABLETS SUCH AS THE TAB SERIES AND YOGA TAB SERIES
Advantages of TN displays and TN monitors
Despite the growing market prevalence of IPS displays, there’s still a dedicated user base for TN technology. Here’s why:
Faster response times and refresh rates: As stated above, the nature of a TN display makes it faster at refreshing the on-screen imagery and activating/deactivating each pixel. And while the difference is only a few milliseconds (the best TN panels boast response times as fast as 1 ms -- 2-3 ms faster than top-end IPS models), competitive PC gamers typically want the fastest refresh rates and response times.
Lower prices (generally): It’s broadly accepted that a TN display will cost less than an IPS one with equivalent resolution, features, and so on. However, the price difference has narrowed over time, with some IPS monitors now available for $200 USD or less. Still, be wary of IPS displays that seem too inexpensive. Some users complain about so-called “IPS glow” on low-end IPS displays, with the backlight appearing brighter in some parts of the screen than others.
Ready to shop? Lenovo offers a full line of laptops, tablets, standalone monitors, and all-in-ones with different display technologies. Now that you know how IPS and TN displays differ, you’re ready to make your choice.
CLICK TO REVIEW IMPORTANT INFORMATION REGARDING LENOVO PRICING, RESTRICTIONS, WARRANTIES AND MORE
* The prices mentioned are exclusive of all taxes &octroi
**Actual battery life may vary depending on application usage, settings, features or tasks selected, network configuration, operating temperature and many other factors.
Availability: Offers, prices, specifications and availability may change without notice. Lenovo is not responsible for photographic or typographic errors. Other models are available. Find out more in Lenovo Authorized Retailers Shop.
General System Information: Review key information provided by Microsoft that may apply to your system purchase, including details on Windows 10, Windows 8, Windows 7, and potential upgrades/downgrades. Lenovo makes no representation or warranty regarding third-party products or services.
Pricing: Reseller prices may vary. Lenovo does not set reseller prices.
Warranty: Regional Carry-in Warranty is only applicable in ASEAN countries. Lenovo makes no representation or warranty regarding third party products or services.
Trademarks: Lenovo, ThinkPad, ThinkCentre and the Lenovo logo are trademarks of Lenovo. Microsoft, Windows, Windows NT, and the Windows logo are trademarks of Microsoft Corporation. Ultrabook, Celeron, Celeron Inside, Core Inside, Intel, Intel Logo, Intel Atom, Intel Atom Inside, Intel Core, Intel Inside, Intel Inside Logo, Intel vPro, Itanium, Itanium Inside, Pentium, Pentium Inside, vPro Inside, Xeon, Xeon Phi, Xeon Inside and Intel Optane are trademarks of Intel Corporation or its subsidiaries in the U.S. and/or other countries. Other company, product or service names may be trademarks or service marks of others.
CLICK TO REVIEW IMPORTANT INFORMATION REGARDING LENOVO PRICING, RESTRICTIONS, WARRANTIES AND MORE
* The prices mentioned are exclusive of all taxes &octroi
**Actual battery life may vary depending on application usage, settings, features or tasks selected, network configuration, operating temperature and many other factors.
Availability: Offers, prices, specifications and availability may change without notice. Lenovo is not responsible for photographic or typographic errors. Other models are available. Find out more in Lenovo Authorized Retailers Shop.
General System Information: Review key information provided by Microsoft that may apply to your system purchase, including details on Windows 10, Windows 8, Windows 7, and potential upgrades/downgrades. Lenovo makes no representation or warranty regarding third-party products or services.
Pricing: Reseller prices may vary. Lenovo does not set reseller prices.
Warranty: Regional Carry-in Warranty is only applicable in ASEAN countries. Lenovo makes no representation or warranty regarding third party products or services.
Trademarks: Lenovo, ThinkPad, ThinkCentre and the Lenovo logo are trademarks of Lenovo. Microsoft, Windows, Windows NT, and the Windows logo are trademarks of Microsoft Corporation. Ultrabook, Celeron, Celeron Inside, Core Inside, Intel, Intel Logo, Intel Atom, Intel Atom Inside, Intel Core, Intel Inside, Intel Inside Logo, Intel vPro, Itanium, Itanium Inside, Pentium, Pentium Inside, vPro Inside, Xeon, Xeon Phi, Xeon Inside and Intel Optane are trademarks of Intel Corporation or its subsidiaries in the U.S. and/or other countries. Other company, product or service names may be trademarks or service marks of others.