up
en ru ua
menu



logo minifile

::>Displays > 2014 > 06 > LG 27MP75HM-P

Print version
Republish review

15-06-2014


rss

LG 27MP75HM-P monitor review and testing

In this review we will continue to meet with monitors with support for "national" Full HD resolution (1920 x 1080). However, this time we will examine the device with a diagonal of 27”. Solutions of this kind on the market are no less popular than their “younger relative” so deserves a special attention.

The main reason of the great interest of users to 27-inch Full HD standard lies in their value. After all, they provide an opportunity to enjoy the big picture not overpaying for support the resolution 2560 x 1600.

LG 27MP75HM-P

The hero of today’s review is display LG 27MP75HM-P. In addition to above mentioned advantages, it has at least pleasant and tuny design Cinema Screen. Recently we have tested model LG 24MP76HM-S made is such style. And we will use it to compare with today’s product.

The specs:

Producer

LG

Model

27MP75HM-P 

Matrix type

IPS

Paneltype

WLED

Monitor size

27

Screen format

16:9

Display Area, mm

-

Resolution

1920 х 1080

Pixel, mm

0,3114

Brightness, cd/m²

250

Contrast Ratio (statistical/dynamic)

1000:1 / 10 000 000:1

Matrix Response Time (GtG), ms

5

Color numbers, M.

16,7

Horizontal scanning frequency, KHz

30 - 83

Vertical scanning frequency, Hz

56 - 61 (75 D-Sub)

Viewing angles (h/v) till the contrast > 10:1,°

178 / 178

Video output

1 x D-Sub
2 x HDMI

Audio output

2 х 3,5 mm

USB 2.0

No

USB 3.0

No

On-board speaker capacity, W

2 x 5

Accessories

Technology LG Super+ Resolution used to increase the image sharpness

Wall mounting

Yes

Dimensions (including stand), mm

623 х 372 (474) х 70 (182)

Weight (including stand), kg

4,6 (5,6)

Producer website

LG 

Packaging and content

LG 27MP75HM-P

Monitor LG 27MP75HM-P is shipped in quite big cardboard box which provides protection against impacts and possible mechanical damages during transportation. It has usual printing of red color. In addition to the image of the device, on the sides of the package also are its main features. First of all its screen size (27’’ or 69 cm) and the type of matrix (IPS). Other features are presented in a series of logos with short inscriptions:

  •  Cinema Screen – a very thin frame that miniaturizes the monitor is used around the screen;
  • Stereo Speaker – presence of two integrated speakers;
  • Reader Mode - among preset profiles there are modes with specially selected settings to reduce eye strain during prolonged reading text from the screen;
  • 2 х HDMI - presence of two digital video interfaces HDMI.

LG 27MP75HM-P

The set of delivery includes the following components:

  • Stand;
  • Leg;
  • Network adapter (AC: 100 - 240 V / 50 - 60 Hz / 1,1 А; DC: 19V / 2.1 А);
  • Cable with D-Sub sockets;
  • Screws to mount the stand;
  • Cable clamp;
  • CD with documentation and software;
  • User’s manual

Design and usage properties

LG 27MP75HM-P

Externally monitor LG 27MP75HM-P is very similar to the tested before model LG 24MP76HM-S: the same thin "frameless" chassis, "floating" in the air on a transparent leg. Only diagonal screen size was increased (from 24" to 27") and color also was a little changed (all silver paste replaced by black elements). Stand and back panel are glossy which further emphasizes the refined style of the monitor.

LG 27MP75HM-P

The power supply unit of monitor is outside, so it has a relatively small case thickness (70 mm). In the center of the rear panel there are holes for mounting the VESA 100 mm. Thus, LG 27MP75HM-P can be set on the table and the wall. The leg is made of thick acrylic, so there is no reason to doubt its durability and reliability. And the weight of the monitor together with its size is quite small 5.6 kg with stand and without it 4.6 kg.

LG 27MP75HM-P

Leg cannot be called very functional as is adjustable angle of the display is only within -5 ° ... +20 °.

LG 27MP75HM-P

At the end of the leg in case of need you can mount plastic overlay with a special gutter which serves as a holder of cables. Stand is a large metal plate covered with a decorative glossy panel of black color.

LG 27MP75HM-P

Video connectors are represented by one analog D-Sub port and two digital HDMI. All graphics interfaces support a resolution of 1920 x 1080 at frequency sweep 60 Hz. Also note two audio outputs: one of them (AUDIO IN PC) is designed to connect the audio cable to the sound card, the other (H/P) is used to connect headphones.

LG 27MP75HM-P

Multimedia capabilities of the model LG 27MP75HM-P can boast by two built-in speakers with a total capacity of 10 W. They play quite loud and are quite suitable for audio playback of videos on the Internet, the implementation of video calls or video conferences.

LG 27MP75HM-P

Buttons to control the monitor and menu navigation are located in the bottom right corner of the case and represent the touch elements. Each of them is provided with a small explanatory inscription. In short, everything is done in the general style of the monitor, i.e. is gracefully and beautifully.

LG 27MP75HM-P

The same can be said about operation indicator of the device. It is in the middle and bottom of the case and in active display mode it has white color, and during the idle mode it flickers. In both cases brightness is moderate and does not distract attention is dark time. If the light of the LED distract you it always possible to disable using the corresponding menu item.

Display menu and operational demonstration of proprietary technologies

LG 27MP75HM-P

LG 27MP75HM-P

LG 27MP75HM-P

On-screen menu of LG 27MP75HM-P has the same structure and the same range of settings as in the model LG 24MP76HM-S. Access to the main parameters is opened by pressing «MENU». Here the user can manually set the brightness, contrast, response time of matrix, level of black color, balance and range of primary colors.

LG 27MP75HM-P

LG 27MP75HM-P

The second part of the menu is opened after clicking on the button «FUNC». Five tabs collect settings of proprietary technologies and selects preset modes. Traditionally, they are classified into two large groups under the names «PC» and «AV».

LG 27MP75HM-P

The manufacturer has provided two special profiles for reading. To access them you need to use a separate button «READER». All of these modes will be considered in more detail during testing. Now let's analyze the work of technology LG Super + Resolution, which at the hardware level increases the sharpness of the image.

LG 27MP75HM-P

LG Super+ Resolution function is turned off

LG 27MP75HM-P

LG Super+ Resolution function is turned on (“High” value)

It works quite well and can be useful in different cases, such as when reading text from scanned pages or photos. However, in games or 3D-graphics applications this feature should be disabled.
Testing
The names of some modes coincide, so for better understanding will be used the prefix “PC” and “AV”. In addition, the characteristics of profiles “AV_User” and “PC_User” coincide, so we decided to combine them under the name “PC/AV_User”.

Study of characteristics of “PC” profiles group

First of all we are going to examine the group which includes modes intended for use in daily work with the computer (OS interface, multiple applications, games and movies). It is called “PC” profile and has 5 profiles: “PC_Text”, “PC_Photo”, “PC_Movie”, “PC_Games”, “PC/AV_User”.


«PC_Text» 

«PC_Photo» 

«PC_Movie» 

«PC_Games» 

«PC/AV_User»

White area brightness, cd/m2 

195,1

246,1

246,1

181,9

195,4

Black area brightness, cd/m2 

0,240

0,873

0,759

0,587

0,240

Contrast coefficient, х:1

814

282

324

310

815

Color temperature of white dot, К

7220

6217

6229

9302

7246

Correspondence of color space with sRGB standard, %

86,6

91,5

89,9

93,9

86,6

Correspondence of color space with AdobeRGB standard, %

63,3

67,2

66,1

71,5

63,3

Average deviation dE*94 (E)

0,44

1,52

2,06

6,37

0,44

Maximum deviation dE*94 (E)

2,03

4,03

4,52

12,68

2,01

Average gamma

2,33

2,00

2,10

2,09

2,33

Power consumption, W

33

33

32

33

33

LG 27MP75HM-P

CIE-diagram of “PC_Games” profile

LG 27MP75HM-P

CIE-diagram of “PC_Photo”  and “PC_Movie”profiles

LG 27MP75HM-P

CIE-diagram of “PC_Text”  and “PC/AC_User”profiles

Best color gamut has a profile "PC_Games". After activation the indicator of corresponding to the reference space sRGB was 93.9%. The lowest values (at 86.6%) were recorded in conditions "PC_Text" and «PC/AV_User".

LG 27MP75HM-P

Diagram of main color and hue deviations from references in “PC_Games profile.

 

LG 27MP75HM-P

Diagram of main color and hue deviations from references in “PC_Photo profile.

LG 27MP75HM-P

Diagram of main color and hue deviations from references in “PC_Movie profile.

 

 LG 27MP75HM-P

 Diagram of main color and hue deviations from references in “PC_Text and “PC/AV_User” profiles.

However, the opposite pattern can be observed after the experiment with color accuracy. Here the modes "PC_Text» and «PC/AV_User" make up the leading group: mean deviation dE*94 (ΔE) is 0.44, and the maximum 2,01-2,03 with recommended values ≤ 1 and ≤ 3 respectively. Such parameters of Monitor LG 27MP75HM-P can compete with professional solutions so it deserves an "excellent" mark.
As for the mode "PC_Games", all the colors in it are strongly distorted, and we recommend to abstain from using it. In practice, it is better to get a slightly smaller color gamut than the wrong colors in the picture.

LG 27MP75HM-P

Graph of RGB  level of “PC_Game”profile

To demonstrate these words it is enough to look at the graph of the RGB levels of present profile. Blue component is considerably higher than the reference line of 100% which will provide "cold" colors on the screen.

LG 27MP75HM-P

Graph of RGB  level of “PC_Game” and “PC_Movie” profiles

 

LG 27MP75HM-P

Graph of RGB  level of “PC_Text” and “PC/AV_User” profiles

When you activate the other modes of the group «PC» the state of all curves is much better and respectively the image on the monitor looks more natural.

LG 27MP75HM-P

Graph of “PC_Photo” gamma-curves

LG 27MP75HM-P

Graph of “PC_Movie” gamma-curves

 

LG 27MP75HM-P

Graph of “PC_Text” and “PC/AV_User” gamma-curves

In all four profiles ("PC_Text" "PC_Photo" "PC_Movie" and «PC / AV_User") gamma-curves virtually superimposed on the reference line. And the average gamma values are close to “reference” indicator 2.2. This means that there are no problems with the displaying of detail in dark and bright scenes will be observed.

Also, it is important to remember about absolute terms of static contrast. Again we recommend to pay attention to the modes "PC_Text» and «PC/AV_User" with recorded value - 815:1. It is their best, we believe in the group «PC». When you activate other profiles static contrast ratio falls to 280:1 - 320:1 and the picture on the screen may seem less saturated and rich.


Социальные комментарии Cackle
Site Search
facebook vk YouTube
google+ twitter rss
top10

vote

Голосование