ASUS Vivobook S 14 OLED (K5404)

ASUS OLED laptops

ASUS OLED display laptops come with a best-in-class colour gamut. They reproduce colours with superb real-life accuracy for professional-grade visuals, and offer ultrafast response times and refresh rates, making them perfect for professional and creative work, or anyone who simply wants to enjoy the very best colour fidelity and motion clarity. OLED displays, due to the nature of the special organic light-emitting compounds they use, can reduce harmful blue light by up to 70% compared to LCD displays, making them extra gentle on your eyes to reduce the risk of retinal damage.

5 reasons to choose ASUS OLED laptops

100% DCI-P3 best-in-class colour gamut
Vivid displays for precise creativity, colour work and vibrant visual entertainment.
70% less harmful blue light
With lower harmful blue-light levels, OLED offers better eye care and sleep quality.
120 Hz / 0.2 ms ultimate motion clarity
Blur-free action scenes in movies and games, with ultra-smooth text scrolling.
Clearer images at any brightness
Rich colours are maintained even at low brightness levels.
DisplayHDR™ True Black 500/600
The deep blacks allow you to see previously unseen details in dark movie scenes.

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See all ASUS OLED Laptops
ASUS OLED laptop displays
Most LCD laptop displays
 
COLOUR GAMUT
PANTONE® VALIDATED
REFRESH RATE
RESPONSE TIME
PEAK BRIGHTNESS
CONTRAST RATIO
HARMFUL BLUE LIGHT
COLOUR DEPTH
ASUS OLED laptop displays
100% DCI-P3 (133% sRGB)Best-in-class colours
Yes
Up to 120 Hz120 Hz / 0.2 ms OLED has better motion clarity than 165 Hz / 3 ms LCD
0.2 msUp to 50x faster response time for smoother action
Up to 600 nitsEquivalent to 789 nits LCD perceptual brightness
1,000,000:1DisplayHDR™ True Black 500/600 certified
6.5%70% reduction in harmful blue light for eye care
Up to 1.07 billion colours
Most LCD laptop displays
62.5% sRGB (45% NTSC)
No
60 Hz
10 ms
250 nits
1,000:1
21.5%
16.7 million colours

Colour

Ultimate professional-grade colours

ASUS OLED laptops deliver exceptionally detailed and realistic visuals, with a cinema-grade 100% DCI-P3 colour gamut. This means that the colours reproduced on the display are richer and more vivid: it’s ideal for colour-intensive projects, but also enhances any kind of content.
100%
DCI-P3 colour gamut
133%
sRGB colour gamut
1.07billion
colours
Cinema-grade
industry standard
DCI-P3sRGB
LCD100% sRGBOLED100% DCI - P3

Colour

Ultra-accurate colours

Designers, producers, and brands deal with colour-critical decisions and communications each day. A PANTONE® Validated OLED display means that the colours you see on the screen are accurate — what you see is truly what you get!
industry-standard colour fidelity

ASUS SPLENDID TECHNOLOGY

Customizable colour gamut for every need

The display’s colour gamut can be quickly and easily switched for different tasks or preferences. On top of the ultravivid native colour setting, choose sRGB for creating web content or browsing, DCI-P3 for cinema content, or Display P3 for movie-grade colours finessed to fit everyday viewing in the real world.
sRGB
Web content-creation standard
DCI-P3
Cinema colour standard
Display-P3
Movie-grade colours adjusted to fit everyday viewing
Native
Original OLED colours

Eye Care

70% blue-light reduction for eye care

Blue light is known to cause visual discomfort and disrupt sleep quality. However, due to the nature of the special organic lighting materials in an OLED display, ASUS OLED laptops emit 70% less harmful blue light1, and they’re also certified by TÜV Rheinland and SGS. More importantly, unlike traditional blue-light filters, shifting the spectrum means there’s no need to compromise colour accuracy.
70%
reduced blue light1
flicker free certified
low blue light hardware certified
low blue light certified
Harmful blue light wavelengthOLED Exposure (6.5%)LCD Exposure (21.5%)OLED with less harmful blue light

Eye Care

Eye care, even more critical for children

Since children’s eyes are not fully developed, with a more transparent lens and cornea, harmful blue light can penetrate the eye more easily, potentially causing premature aging of the retina. Research4 has shown that in a five-year-old child's eyes, approximately 60% of the received blue-light emissions pass through to the retina, compared to only around 20% for a 60-year-old adult. With ASUS OLED displays, the significantly lower blue light levels mean better eye care for children.
Lens transparency for blue light
Wavelength (nm)
Harmful blue light
5 year-old
60 year-old
Source: Lakeside Vision Center (2018)
https://www.essilorpro.com/content/dam/essilor-redesign/product-resources/crizal/Blue-Light-Roundtable_White-Paper.pdf

Motion Clarity

World-leading motion clarity with up to 120 Hz OLED display

The world’s first 120 Hz refresh rate, 0.2 ms response time OLED laptop display gives you so much more on top of the best colours and quality for any content — gaming, creation, day-to-day work and media entertainment can all benefit from the smoother-than-ever experience. In a word, it’s awesome!
Animation design
Text and article scrolling
Video streaming
Gaming

Response Time

Fastest response time on any laptop for motion clarity

For a display, response time is the time taken to replace one colour with another: the faster the time, the better motion is reproduced. The diagram below shows a colour transition from purple to blue. On an ASUS OLED, this transition takes only 0.2 milliseconds, while on an LCD, it might take 10 ms or longer. This makes a lot of difference, since OLED colours and images look correct for most of the time a frame is displayed, whereas LCD images may be blurry during the transition process.
ASUS OLED displays have a 0.2 ms response time — the fastest of any laptop, and 50x faster5 than the average laptop LCD display. This ensures smoother fast-paced action scenes, low-latency gameplay, and subtle details like blur-free text scrolling. In effect, the smooth visuals on an OLED display can rival those on an LCD display with a much higher refresh rate.
0.2ms
ultrafast response time
50X
faster response time5
LCD
10 ms response time
OLED
Ultrafast 0.2 ms response time

MOTION CLARITY

Ultimate 120 Hz / 0.2 ms for exceptional motion clarity

The new premium ASUS OLED display with 120 Hz refresh rate and 0.2 ms pixel response time is incredibly smooth and clear. In fact, both surprisingly and counter-intuitively, the 120 Hz / 0.2 ms OLED display is faster than a 165 Hz / 3 ms LCD IPS display — because it reduces ghosting to an indiscernible level. Simply put, this means even fast-moving visuals are smoother and clearer than ever.

MOTION CLARITY

How 120 Hz / 0.2 ms OLED display has better motion clarity than 165 Hz / 3 ms LCD display

It seems counter-intuitive that a 120 Hz / 0.2 ms OLED display could outperform a 165 Hz / 3 ms LCD display rival — so how is this possible? Well, the LCD panel takes precisely 6.06 ms to refresh each frame, but it takes another 3 ms of response time to process the correct colours. That’s a total of 9.06 ms to fully load the image. A 144 Hz / 12.5 ms LCD display takes even longer, at 19.44 ms to show the full, final frame of each image. But with its extreme-speed response, a 120 Hz / 0.2 ms OLED display takes just 8.5 ms to process the same — making it even faster than a 165 Hz / 3 ms LCD display.
120 Hz / 0.2 ms OLED
0
Image Starts Refreshing
Refresh time
8.33 ms (=1000 ms / 120 Hz)
Image Starts Appearing
Response time
0.2 ms
Final Image With Correct Colours
8.53 ms
165 Hz / 3 ms LCD IPS
0
Image Starts Refreshing
Refresh time
6.06 ms (=1000 ms / 165 Hz)
Image Starts Appearing
Response time
3 ms
Final Image With Correct Colours
9.06 ms
144 Hz / 12.5 ms LCD IPS
0
Image Starts Refreshing
Refresh time
6.94 ms (=1000 ms / 144 Hz)
Image Starts Appearing
Response time
12.5 ms
Final Image With Correct Colours
19.44 ms

Colour Volume

Colour-perfect at any brightness

ASUS OLED laptops maintain a 100% DCI-P3 colour gamut at both high and low brightness levels, while on a standard LCD laptop the colour gamut is reduced dramatically at low brightness levels. At a gray-level brightness of 16 G, LCD laptops only have an 11% DCI-P3 colour gamut, while ASUS OLED laptops maintain a 100% DCI-P3 colour gamut.
OLED
LCD
brightness
255 G
104 G
48 G
16 G
DCI-P3
* Colour expression of an LCD display compared to OLED display at the same brightness level.
Gray level (Brightness)
High Brightness
Low Brightness

Colour Volume

OLED has 1.6x colour volume compared to LCD

On conventional LCD displays, detail and colour quality usually decrease dramatically as the brightness is reduced. But ASUS OLED laptops are able to show great detail at lower brightness settings due to their high contrast and their ability to maintain a wide colour gamut at low brightness. When calculating the 3D colour volume — which adds illumination to the traditional 2D colour gamut — ASUS OLED displays have about a 60% higher colour volume, offering better colour performance at any brightness level.
1.6X
colour volume compared to LCD
3D Colour Volume
OLEDLCD2D Colour GamutLum

Perceptual Brightness

OLED has much higher perceptual brightness

ASUS OLED laptops can maintain good colour reproduction at any brightness level, so you can freely adjust the screen's brightness to suit your working environment, while still enjoying exceptionally vivid colours. For example, in the living room environment (usually illuminated at about 100 lux), you only need 177 nits brightness in an OLED display to produce the same clear image as 400 nits brightness in an LCD display. At the lower brightness levels needed on OLED displays, there's less harmful blue light emitted.
LCD
400
nits
OLED
152
nits
177
nits
303
nits
305
nits
Environment
(Illuminance)
Dark room
(0 lx)
Living room
(100 lx)
Office
(500 lx)
Studio
(1000 lx)
* Required brightness on OLED to reproduce same colours on 400 nits LCD screens.
LCD150 nitsOLED150 nits

Contrast

True black: See the unseen

ASUS OLED laptops reproduce blacks perfectly. An OLED pixel consists of three sub-pixels, each with its own self-generated illumination: a Full HD (1920x1080) display has 2,073,600 pixels, which means it has 6,220,800 self-illuminated sub-pixels, compared to just a few dozen LED backlights in a Full HD LCD display. When displaying black on an OLED display, the pixel is simply turned off to produce the darkest possible black. This enables extremely crisp and clear images even in the darkest scenes. You’ll be surprised to see how many new details you’ll spot in your favourite films!
1,000,000:1
contrast ratio
Up to
600nits
peak brightness6
0.0005nits
true black
Up to
 
LCDOLED

ASUS OLED Care

Protecting your OLED display

ASUS OLED laptops come with an ASUS-exclusive OLED Care mechanism that’s proven to protect your OLED display. Image persistence, or burn-in7, on an OLED display can occur if a static high-contrast image is displayed for a prolonged period of time. To avoid this, when your ASUS laptop is idle for over 30 minutes, our specially designed Pixel Refresh feature kicks in. We also include Pixel Shift technology, which moves displayed pixels slightly to avoid consistently showing static images on your desktop. This significantly reduces the chance of burn-in by making sure all the pixels are illuminated and darkened equally, thus protecting the display from visible colour shifts over time.

Harmful effects on retinal cells

Cone cells are the cells in the eye's retina that enable colour vision. Blue light is often more harmful to these cells compared to other wavelengths of light. In experiments conducted by the Gifu Pharmaceutical University in Japan2, mice cone cells were subjected to red, green, and blue light sources. The survivability of the cone cells under blue light exposure dropped dramatically to 20% after 24 hours, while cone cells exposed to other colours retained around 100% survivability.
Before exposure
Red light
Green light
Blue light
-80
%
Retina cell survivability
Source: Gifu Pharmaceutical University (2014)
https://www.nature.com/articles/srep05223

Blue light disrupts sleep cycles

When it gets dark, your brain produces the hormone melatonin, which helps to maintain the correct scheduling of your daily sleep cycles. According to a Stanford University study3 the production of melatonin can be blocked by exposure to blue light at night, and potentially cause sleep disruption.
Night
Day
Night
(With blue light exposure)
-23
%
Melatonin
Source: Stanford University (2017)
https://large.stanford.edu/courses/2017/ph240/kersten2

Protect young eyes with OLED

In a five-year-old child's eyes, approximately 60% of the received blue light emissions pass through to the retina, compared to only around 20% for a 60 year-old adult. The potential harmful effects of blue light on young children will be significantly reduced if you choose an ASUS OLED display.
Lens transparency for blue light
Wavelength (nm)
Harmful blue light
5 year-old
60 year-old

Consistent colour in any environment

ASUS OLED laptops can maintain good colour reproduction at any brightness level, so you can freely adjust the screen's brightness to suit your working environment. So even with a lower brightness, you can still enjoy exceptionally vivid colours. At the lower brightness levels needed on OLED displays, there's less harmful blue light emitted.
OLED
LCD
brightness
255 G
104 G
48 G
16 G
* Colour expression of an LCD display compared to OLED display at the same brightness level.

Wide colour gamut at low screen brightness

ASUS OLED laptops maintain a 100% DCI-P3 colour gamut at both high and low brightness levels, while on a standard LCD laptop the colour gamut is reduced dramatically at low brightness levels.
LCD
400
nits
OLED
152
nits
177
nits
303
nits
305
nits
Environment
(Illuminance)
Dark room
(0 lx)
Living room
(100 lx)
Office
(500 lx)
Studio
(1000 lx)
* Required brightness on OLED to reproduce same colours on 400 nits LCD screens.

High coverage of HDR standard

The industry HDR standard covers a huge range of brightness from 0.0005 nits — the lowest measurable level — up to 10,000 nits. The true blacks and high brightness possible with OLED displays give them a 75% coverage of the HDR standard, compared to about 46% for LCD displays.
HDR coverage (%)
Brightness (nits, log10)
HDR standard
0.0005 ~ 10000 nits
OLED
0.0005 ~ 500 nits
LCD
0.1 ~ 500 nits

Millions of pixels, individually illuminated

The pixels on an OLED display each contain three sub-pixels. A Full HD (1920x1080) display has 2,073,600 pixels, which means it has 6,220,800 sub-pixels. Each sub-pixel self-illuminates independently, unlike LCD displays with pixels that need to be backlit, usually by just 50 or 60 LEDs. This means that it's easier to achieve true black on an OLED display, by simply turning off a pixel. This can't be done on an ordinary LED display, because the backlight can't be turned off with such granularity. This fact also gives OLED displays exceptionally high contrast.
LCD
ASUS OLED

Clearer motion than ultrafast LCD displays

The ultrafast 0.2 ms response time of an OLED display means it can switch colours and images much quicker than even LCD displays with higher refresh rate. So a 90 Hz, 0.2 ms OLED display shows much smoother and clearer motion than a 144 Hz, 25 ms LCD laptop display.
LCD
144 Hz refresh rate, 25 ms response time
OLED
90 Hz refresh rate, 0.2 ms response time