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Test: Lepow Portable Monitor - USB-driven portabel skärm

Allen Ngo, 👁 Allen Ngo (översatt av Daniel Eriksson), 08/21/2019

15.6 tum och 1080p till ett lågt pris. Denna lätta och portabla monitor på 15.6 tum har en tilltalande design med tunn infattning som känns lyxig att hålla i. Själva skärmen speglar dock det låga priset.

Lepow Type-C Portable Monitor X0025I0D4P
Processor
Skärm
15.6 tum 16:9, 1920 x 1080 pixlar 141 PPI, glansig: nej
Storlek
höjd x bredd x djup (i mm) 8.8 x 368 x 225
Övrigt
12 Månader Garanti
Vikt
770 g
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

368 mm 225 mm 8.8 mm 770 g303.9 mm 219.1 mm 9.9 mm 1.3 kg292 mm 201 mm 8.5 mm 781 g280.6 mm 214.9 mm 5.9 mm 633 g
Framsidan: Inga portar
Framsidan: Inga portar
Höger: USB Typ C videoutgång, Volymknapp/OSD-kontroll, På/Av/OSD-knapp
Höger: USB Typ C videoutgång, Volymknapp/OSD-kontroll, På/Av/OSD-knapp
Baksidan: Inga portar
Baksidan: Inga portar
Vänster: 3.5 mm för hörlurar, USB Typ C strömport, Mini-HDMI
Vänster: 3.5 mm för hörlurar, USB Typ C strömport, Mini-HDMI
201.1
cd/m²
180
cd/m²
201.4
cd/m²
178.4
cd/m²
193.9
cd/m²
178.6
cd/m²
201.1
cd/m²
202.2
cd/m²
191.2
cd/m²
Distribution av ljusstyrkan
X-Rite i1Pro 2
Max: 202.2 cd/m² Medel: 192 cd/m² Minimum: 4.61 cd/m²
Distribution av ljusstyrkan: 88 %
Kontrast: 259:1 (Svärta: 0.75 cd/m²)
ΔE Color 6.66 | 0.6-29.43 Ø6, calibrated: 3.83
ΔE Greyscale 7.6 | 0.64-98 Ø6.3
61.8% sRGB (Argyll 3D) 39.3% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.04
Lepow Type-C Portable Monitor X0025I0D4P
15.6, 1920x1080
Odake BladeX 4K UHD
15.6, 3840x2160
Dell XPS 15 2018 i5 FHD 97Wh
Sharp SHP149A LQ156M1, LED IGZO IPS InfinityEdge, 15.6, 1920x1080
Lenovo Ideapad 330S-15ARR-81FB00C7GE
LG Philips LP156WFC-SPD1, IPS, 15.6, 1920x1080
Asus VivoBook S15 S532F
LG Philips LP156WFC-SPD1, IPS, 15.6, 1920x1080
Apple MacBook Pro 15 2018 (2.6 GHz, 560X)
APPA040, IPS, 15.4, 2880x1800
Response Times
-17%
-30%
-6%
9%
3843%
Response Time Grey 50% / Grey 80% *
30.8 (16.8, 14)
40 (20.4, 19.6)
-30%
49 (25, 40)
-59%
34 (16, 18)
-10%
24.8 (12.8, 12)
19%
43.2 (20.4, 22.8)
-40%
Response Time Black / White *
23.6 (12.4, 11.2)
24.4 (12.8, 11.6)
-3%
30 (16, 14)
-27%
24 (14, 10)
-2%
24 (14, 10)
-2%
31.2 (16.4, 14.8)
-32%
PWM Frequency
1000 (23)
961 (10)
-4%
117000 (75, 150)
11600%
Screen
77%
98%
44%
26%
130%
Brightness middle
193.9
371.9
92%
413
113%
265
37%
262.3
35%
520
168%
Brightness
192
366
91%
378
97%
242
26%
250
30%
492
156%
Brightness Distribution
88
88
0%
86
-2%
74
-16%
89
1%
88
0%
Black Level *
0.75
0.31
59%
0.29
61%
0.215
71%
0.43
43%
0.39
48%
Contrast
259
1200
363%
1424
450%
1233
376%
610
136%
1333
415%
Colorchecker DeltaE2000 *
6.66
6.36
5%
2.44
63%
6.16
8%
5.81
13%
1.2
82%
Colorchecker DeltaE2000 max. *
18.75
10.34
45%
4.46
76%
18
4%
14.7
22%
2.3
88%
Colorchecker DeltaE2000 calibrated *
3.83
5.89
-54%
2.48
35%
6.18
-61%
5.36
-40%
Greyscale DeltaE2000 *
7.6
3.7
51%
2.48
67%
3.79
50%
2.8
63%
1.3
83%
Gamma
2.04 108%
2.19 100%
2.43 91%
2.34 94%
2.15 102%
2.18 101%
CCT
8567 76%
6474 100%
7006 93%
7258 90%
7016 93%
6738 96%
Color Space (Percent of AdobeRGB 1998)
39.3
91.7
133%
62
58%
36
-8%
35.2
-10%
Color Space (Percent of sRGB)
61.8
100
62%
96
55%
57
-8%
55.6
-10%
Total Average (Program / Settings)
30% / 63%
34% / 70%
19% / 36%
18% / 23%
1987% / 1143%

* ... smaller is better

Display Response Times

Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.
       Response Time Black to White
23.6 ms ... rise ↗ and fall ↘ combined↗ 12.4 ms rise
↘ 11.2 ms fall
The screen shows good response rates in our tests, but may be too slow for competitive gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 33 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (25 ms).
       Response Time 50% Grey to 80% Grey
30.8 ms ... rise ↗ and fall ↘ combined↗ 16.8 ms rise
↘ 14 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.9 (minimum) to 636 (maximum) ms. » 19 % of all devices are better.
This means that the measured response time is better than the average of all tested devices (39.8 ms).

Screen Flickering / PWM (Pulse-Width Modulation)

To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession - a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.
Screen flickering / PWM detected 1000 Hz ≤ 23 % brightness setting

The display backlight flickers at 1000 Hz (Likely utilizing PWM) Flickering detected at a brightness setting of 23 % and below. There should be no flickering or PWM above this brightness setting.

The frequency of 1000 Hz is quite high, so most users sensitive to PWM should not notice any flickering.

In comparison: 51 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 9394 (minimum: 43 - maximum: 142900) Hz was measured.

Hög belastning
 29.4 °C28.4 °C28.6 °C 
 30 °C29.4 °C29.6 °C 
 39 °C32 °C33.2 °C 
Max: 39 °C
Medel: 31.1 °C
31.4 °C31.8 °C33 °C
32 °C33 °C35 °C
33 °C34.2 °C39.4 °C
Max: 39.4 °C
Medel: 33.6 °C
Rumstemperatur 23 °C | Raytek Raynger ST // Voltcraft IR-360 // FIRT 550-Pocket // Fluke 62 Mini
(+) The average temperature for the upper side under maximal load is 31.1 °C / 88 F, compared to the average of 30.9 °C / 88 F for the devices in the class Multimedia.
(+) The maximum temperature on the upper side is 39 °C / 102 F, compared to the average of 36.5 °C / 98 F, ranging from 21.1 to 71 °C for the class Multimedia.
(+) The bottom heats up to a maximum of 39.4 °C / 103 F, compared to the average of 38.8 °C / 102 F
(±) The palmrests and touchpad can get very hot to the touch with a maximum of 39 °C / 102.2 F.
(-) The average temperature of the palmrest area of similar devices was 29.1 °C / 84.4 F (-9.9 °C / -17.8 F).
dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2035.335.12532.931.83131.8324036.535.15032.428.9633328.98036.328.810048.32712561.52716052.924.820060.92425062.822.731563.32240069.521.250067.82163074.82080075.919.4100072.718.912507117.7160070.117.820006917.6250071.817.6315068.117.6400071.417.6500073.717.6630070.417.5800071.617.61000071.617.61250069.617.41600059.717.5SPL83.630.6N62.51.5median 69.6median 17.8Delta4.62.4hearing rangehide median Pink NoiseApple MacBook 12 (Early 2016) 1.1 GHz
Frequency diagram (checkboxes can be checked and unchecked to compare devices)
Apple MacBook 12 (Early 2016) 1.1 GHz audio analysis

(+) | speakers can play relatively loud (83.6 dB)
Bass 100 - 315 Hz
(±) | reduced bass - on average 11.3% lower than median
(±) | linearity of bass is average (14.2% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 2.4% away from median
(+) | mids are linear (5.5% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2% away from median
(+) | highs are linear (4.5% delta to prev. frequency)
Overall 100 - 16.000 Hz
(+) | overall sound is linear (9.3% difference to median)
Compared to same class
» 1% of all tested devices in this class were better, 1% similar, 97% worse
» The best had a delta of 8%, average was 20%, worst was 50%
Compared to all devices tested
» 1% of all tested devices were better, 0% similar, 98% worse
» The best had a delta of 3%, average was 21%, worst was 53%

För

+ alla nödvändiga kablar ingår i förpackningen
+ kan drivas av de flesta USB-portar
+ USB Typ C för ström och bild
+ lätt och portabel
+ fast konstruktion av hög kvalitet
+ inbyggda högtalare
+ billig

Emot

- inget batteri; kräver en energikälla på 5W/2A
- kontrast och ljusstyrka under genomsnittet
- PWM vid låga ljusstyrkenivåer
- magneterna kunde varit starkare
- inget kant-till-kant glas
- inget alternativ för tryckkänslig skärm
- ingen HDMI-port i full storlek
- kinkiga OSD-kontroller
- smal färgrymd
Recension Lepow Typ C Portable Monitor X0025I0D4P. Recensionsex från Lepow
Recension Lepow Typ C Portable Monitor X0025I0D4P. Recensionsex från Lepow

Läs den fullständiga versionen av den här recensionen på engelska här.

Den portabla Lepow-skärmen har utmärkt konstruktionskvalitet, särskilt med tanke på det låga instegspriset. Den är lätt och tillräckligt liten för att kunna bäras runt tillsammans med en laptop, precis som en vanlig surfplatta. Skärmen är bra nog för surfande, datainmatning och visst spelande även om vi tycker att lite mer ljusstyrka och kontrast hade gjort upplevelsen mycket bättre.

Det som är opraktiskt är att den kräver två olika kablar för att kunna användas. Även om alla kablar som behövs ingår i förpackningen är det ändå krångligt att behöva bära runt på en USB Typ C till Typ A-kabel och en mini HDMI-kabel. Skärmen behöver kontinuerligt dra ström från din laptop vilket förstås kommer påverka batteritiden på din PC eller MacBook. En Thunderbolt 3-port eller ett inbyggt batteri hade minskat röran genom att ta bort behovet av två kablar, så som på Odakes 4K-monitor.

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> Bärbara datorer, laptops - tester och nyheter > Tester > Test: Lepow Portable Monitor - USB-driven portabel skärm
Allen Ngo, 2019-08-21 (Update: 2019-08-22)