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HP LP2475W

29 Jun 2009 | Rasmus Larsen |

<h3>Introduction</h3> <br /><b>This review has been translated from Danish and contains the introduction, measurements, pictures and a conclusion. Some sections have been excluded from the translation, however. Future reviews will be fully translated.</b><br /><br />HP is a major global player and even though monitors is not their main marked, HP has some interesting models. The most appealing is the 75 range which includes LP2275W and LP2475W at respectively 22 and 24-inches.<br />The 75 series is aimed at photographers, graphic artists or demanding user because of its true 8-bit S-PVA and H-IPS panels.<br /><br />The 24-inch LP2475W that we will review here has an H-IPS panel. <br />We have already tested the <a href= http://www.flatpanelshd.com/review.php?subaction=showfull&id=1234870190><b>LP2275W with a S-PVA panel</b></a>.<br /><br /><div id=specs><table border="0" align="left" cellpadding="0" cellspacing="1"> <tr> <td width="180" valign="top">Size:</td> <td width="123" valign="top">24"</td> </tr> <tr> <td width="180" valign="top">Resolution:</td> <td valign="top">1920x1200</td> </tr> <tr> <td width="180" valign="top">Response time:</td> <td valign="top">6 ms (g2g)</td> </tr> <tr> <td width="180" valign="top">Overdrive:</td> <td valign="top"><img class="imgresponsive" src="pictures/positive.gif" /></td> </tr> <tr> <td width="180" valign="top">Contrast ratio:</td> <td valign="top">1000:1</td> </tr> <tr> <td width="180" valign="top">Brightness:</td> <td valign="top">400 cd/m˛ </td> </tr> <tr> <td width="180" valign="top">Colours:</td> <td valign="top">16.7 millions</td> </tr> <tr> <td width="180" valign="top">Colour gamut:</td> <td valign="top">72 % af NTSC</td> </tr> <tr> <td width="180" valign="top">Signal processing: </td> <td valign="top">8 bit for each colour </td> </tr> <tr> <td width="180" valign="top">Viewing angles (H/V):</td> <td valign="top">178°/178° (contrast 10:1)</td> </tr> <tr> <td valign="top">Dot pitch:</td> <td valign="top">0,270 mm</td> </tr> <tr> <td valign="top">Panel (Type):</td> <td valign="top">H-IPS</td> </tr> <tr> <td valign="top"> </td> <td valign="top"> </td> </tr> <tr> <td valign="top">Power consumption:</td> <td valign="top">75 W</td> </tr> <tr> <td valign="top">Wall mounting:</td> <td valign="top"><img class="imgresponsive" src="pictures/positive.gif" /></td> </tr> <tr> <td valign="top">Dimensions (HxWxD): </td> <td valign="top">32.8cm x 50.6cm x 25.3cm (with stand)</td> </tr> <tr> <td valign="top">Weight:</td> <td valign="top">9,1 kg</td> </tr> <tr> <td valign="top"> </td> <td valign="top"> </td> </tr> <tr> <td valign="top">Ergonimcs</td> <td valign="top"><p> </p> </td> </tr> <tr> <td width="180" valign="top"><span class="style6">Tilt </span></td> <td valign="top"><img class="imgresponsive" src="pictures/positive.gif" /></td> </tr> <tr> <td width="180" valign="top"><span class="style6">Swivel</span></td> <td valign="top"><img class="imgresponsive" src="pictures/positive.gif" /></td> </tr> <tr> <td width="180" valign="top"><span class="style6">Height </span></td> <td valign="top"><img class="imgresponsive" src="pictures/positive.gif" /></td> </tr> <tr> <td width="180" valign="top"><span class="style6">Pivot</span></td> <td valign="top"><img class="imgresponsive" src="pictures/positive.gif" /></td> </tr> <tr> <td valign="top"> </td> <td valign="top"> </td> </tr> <tr> <td width="180" valign="top">Built-in speakers: </td> <td valign="top"><img class="imgresponsive" src="pictures/negative.gif" /></td> </tr> <tr> <td valign="top"> </td> <td valign="top"> </td> </tr> <tr> <td valign="top">Inputs</td> <td valign="top"> </td> </tr> <tr> <td width="180" valign="top"><span class="style6">VGA </span></td> <td valign="top"><img class="imgresponsive" src="pictures/negative.gif" /></td> </tr> <tr> <td width="180" valign="top"><span class="style6">DVI </span></td> <td valign="top"><img class="imgresponsive" src="pictures/positive.gif" /></td> </tr> <tr> <td width="180" valign="top"><span class="style6">DisplayPort </span></td> <td valign="top"><img class="imgresponsive" src="pictures/positive.gif" /></td> </tr> <tr> <td width="180" valign="top"><span class="style6">Audio (type) </span></td> <td valign="top"><img class="imgresponsive" src="pictures/negative.gif" /></td> </tr> <tr> <td width="180" valign="top"><span class="style6">SCART</span></td> <td valign="top"><img class="imgresponsive" src="pictures/negative.gif" /></td> </tr> <tr> <td width="180" valign="top"><span class="style6">S-video</span></td> <td valign="top"><img class="imgresponsive" src="pictures/positive.gif" /></td> </tr> <tr> <td width="180" valign="top"><span class="style6">Composite </span></td> <td valign="top"><img class="imgresponsive" src="pictures/positive.gif" /></td> </tr> <tr> <td width="180" valign="top"><span class="style6">Component </span></td> <td valign="top"><img class="imgresponsive" src="pictures/positive.gif" /></td> </tr> <tr> <td width="180" valign="top"><span class="style6">HDMI </span></td> <td valign="top"><img class="imgresponsive" src="pictures/positive.gif" /></td> </tr> <tr> <td valign="top"><span class="style6">Other </span></td> <td valign="top">2-port USB Hub</td> </tr> <tr> <td valign="top"> </td> <td valign="top"> </td> </tr> <tr> <td valign="top">Guarantee:</td> <td valign="top">-</td> </tr> <tr> <td valign="top">Pixel guarantee:</td> <td valign="top">-</td> </tr> <tr> <td width="180" valign="top">Etc:</td> <td valign="top"></td> </tr></table></div><br /> <p align=center><b>Price and retailer:</b><br><table align="center"><tr><td width="220" valign="top"><b>US retailer</b></td><td width="220" valign="top"><b>UK retailer</b></td></tr><tr><td valign="top"><a href="http://www.amazon.com/gp/product/B001FS1LLI?ie=UTF8&tag=flaguitoflapa-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=B001FS1LLI"><img class="imgresponsive" src=pictures/amazoncom.jpg></a><img class="imgresponsive" src="http://www.assoc-amazon.com/e/ir?t=flaguitoflapa-20&l=as2&o=1&a=B001FS1LLI" width="1" height="1" border="0" alt="" style="border:none !important; margin:0px !important;" /></td><td valign="top"><a href="http://www.amazon.co.uk/gp/product/B001EI8TH8?ie=UTF8&tag=flaguitoflapa-21&linkCode=as2&camp=1634&creative=6738&creativeASIN=B001EI8TH8"><img class="imgresponsive" src="pictures/amazoncouk.jpg"></a><img class="imgresponsive" src="http://www.assoc-amazon.co.uk/e/ir?t=flaguitoflapa-21&l=as2&o=2&a=B001EI8TH8" width="1" height="1" border="0" alt="" style="border:none !important; margin:0px !important;" /></td></tr></table></p><br /><h3>Our first impressions</h3> <br />Design: <br /><br /><p align=center><a id="thumb" href="pictures/hplp2475w_large3.jpg" class="highslide" rel="highslide"><img class="imgresponsive" src="pictures/hplp2475w_small3.jpg" alt="HP LP2475W" title="Click to enlarge"/></a></p><br /><br /><p align=center><a id="thumb" href="pictures/hplp2475w_large4.jpg" class="highslide" rel="highslide"><img class="imgresponsive" src="pictures/hplp2475w_small4.jpg" alt="HP LP2475W" title="Click to enlarge"/></a></p><br /><br /><p align=center><a id="thumb" href="pictures/hplp2475w_large2.jpg" class="highslide" rel="highslide"><img class="imgresponsive" src="pictures/hplp2475w_small2.jpg" alt="HP LP2475W" title="Click to enlarge"/></a></p><br /><br /><p align=center><a id="thumb" href="pictures/hplp2475w_large1.jpg" class="highslide" rel="highslide"><img class="imgresponsive" src="pictures/hplp2475w_small1.jpg" alt="HP LP2475W" title="Click to enlarge"/></a></p><br /><br /><h3>Test tools</h3><br />We use the DVI input for testing. The graphic card is Geforce 7900GTO.<br /><br />The monitor has been measured and calibrated with a LaCie Blue Eye Pro. We also examine the monitor with the help of our <a href= monitortest_uk.php><i>monitorTest</i></a>. And finally we test the monitor in games, movies etc.<br /><br /><h3>Picture quality</h3><br />“Out-of-box” picture: <br /><br /><p align=center><a id="thumb" href="pictures/hplp2475w-foer-1l.jpg" class="highslide" rel="highslide"><img class="imgresponsive" src="pictures/hplp2475w-foer-1.jpg" alt="HP LP2475W" title="Click to enlarge" /></a></p><br /><i>The graph says this:<br /><br />The number on the left is the delta value. Delta is a difference between two factors; here it’s the difference between the measured colour on the panel and the actual colour that is our target. <br /><br /><li>A delta value lower that 2 results in a visible deviation from the actual colour. <br /><li>A delta value over 4 or 5 results in wrong colours. <br /><li>A delta value between 1 and 2 results in precise but not perfect colours. <br /><li>A delta value lower than one results in almost perfect colours. The target is 0. <br /><li>Everything between 0 and 1 is barely visible to the human eye.</i><br /><br />After calibration:<br /><br /><p align=center><a id="thumb" href="pictures/hplp2475w-efter-1l.jpg" class="highslide" rel="highslide"><img class="imgresponsive" src="pictures/hplp2475w-efter-1.jpg" alt="HP LP2475W" title="Click to enlarge" /></a></p><br /><br />Settings after calibration: <br /><br /><p><div id=specs><table width="325" align="center" bordercolor="#006699" border="1" cellpadding="0" cellspacing="0" style="font-family:Verdana,sans-serif;font-size:9px;"> <tr align="center"> <td width="180" bgcolor="#006699" style="font-size:10px;"><b> </b></td> <td width="180" bgcolor="#006699" style="font-size:10px;"><b>Efter kalibrering</b></td> </tr> <td width="180" valign="top">Lysstyrke:</td> <td width="123" valign="top">45</td> </tr> <br /><tr> <td width="180" valign="top">Kontrast:</td> <td valign="top">80</td> </tr> <tr> <td width="180" valign="top">RGB:</td> <td valign="top">Manuel</td> <tr> <td width="180" valign="top"><span class=style7>• R:</span></td> <td valign="top">241</td> </tr><tr> <td width="180" valign="top"><span class=style7>• G:</span></td> <td valign="top">221</td> </tr><tr> <td width="180" valign="top"><span class=style7>• B:</span></td> <td valign="top">229</td> </tr> </table></div></p><br /><br />Black level and contrast:<br /><br /><p><table align="center" bordercolor="#006699" border="1" cellpadding="0" cellspacing="0" style="font-family:Verdana,sans-serif;font-size:9px;"> <tr align="center"> <td width="180" bgcolor="#006699" style="font-size:10px;"><b> </b></td> <td width="180" bgcolor="#006699" style="font-size:10px;"><b>Out-of-Box</b></td> <td width="180" bgcolor="#006699" style="font-size:10px;"><b>After calibration</b></td> </tr> <tr align="center"> <td>Black level</td> <td>0,43 cd/m2</td> <td>0,37 cd/m2</td> </tr> <tr align="center"> <td>Brightness</td> <td>358 cd/m2</td> <td>184 cd/m2</td> </tr> <tr align="center"> <td>Contrast ratio</td><td>833:1</td><td>497:1</td> </tr></table><div style="font-family:Verdana,serif;font-size:9px;color:C0C0C0;" align="center"><i>Contrast ratio +/- 50</i></div></p><br /><br />Backlight bleeding check:<br /><p align=center><a id="thumb" href="pictures/hplp2475w_large5.jpg" class="highslide" rel="highslide"><img class="imgresponsive" src="pictures/hplp2475w_small5.jpg" alt="HP LP2475W" title="Click to enlarge"/></a></p><br /><br /><h3>Viewing angles</h3> <br />Viewing angles below: <br /><p align=center><a id="thumb" href="pictures/hplp2475w_large6.jpg" class="highslide" rel="highslide"><img class="imgresponsive" src="pictures/hplp2475w_small6.jpg" alt="HP LP2475W" title="Click to enlarge"/></a></p><br /><p align=center><a id="thumb" href="pictures/hplp2475w_large7.jpg" class="highslide" rel="highslide"><img class="imgresponsive" src="pictures/hplp2475w_small7.jpg" alt="HP LP2475W" title="Click to enlarge"/></a></p><br /><br /><h3>Conclusion</h3> <br />The HP LP2475W is a very good monitor. Colour reproduction is accurate and nuanced, and even though it has some colours deviations before calibration, LP2475W has better colours than the vast majority of monitors in the 24-inch segment –mainly due to the quality H-IPS panel. The large colour space might be a problem for very critical viewing, however.<br /><br />Viewing angles are wide but the black level is not as deep as on the LP2275W with the S-PVA panel. I didn’t expect this either but it shows me that IPS panels still have trouble with deep blacks. Shadow detail on LP2475W is not perfect, either. <br /><br />The ergonomics allow the user to adjust height, rotating, tilt and pivot. Functionality is good as well and LP2475W had comprehensive picture options settings and extra features such as PIP/POP. The user can also choose from a wide range of inputs such as D-SUB (VGA), DVI, HDMI and DisplayPort. <br /><br />All in all, the HP LP2475W impresses me and I believe it’s an ideal companion for graphic artists, photographers, movie lovers or demanding users. The monitor is not aimed at gaming, though but if you’re into casual gaming it will suffice.<br /><br />Due to the nice picture quality, ergonomics and comprehensive functionality, I award the HP LP2475W with our top-recommendation Award <br /><br /><p align=center> <a href="/focus.php?subaction=showfull&id=1229335089"><img class="imgresponsive" src=pictures/award_uk_recommend.jpg> </a><br><i>Press the award logo to learn more.</i></p><br /><br /><p><table align="center" bordercolor="#006699" border="1" cellpadding="0" cellspacing="0" style="font-family:Verdana,sans-serif;font-size:9px;"> <tr align="center"> <td width="180" bgcolor="#006699" style="font-size:10px;"><b>Pros</b></td> <td width="180" bgcolor="#006699" style="font-size:10px;"><b>Cons</b></td> <td width="180" bgcolor="#006699" style="font-size:10px;"><b>Target group</b></td> </tr> <tr align="center"> <td>Picture quality</td> <td>Black level</td> <td>Graphics & photography</td> </tr> <tr align="center"> <td>Viewing angles</td> <td>Out-of-box settings</td> <td>Movie editing</td> </tr> <tr align="center"> <td>Ergonomics and functionality</td> <td> </td> <td>Office / allround</td> </table></p><br /> <p align=center><b>Price and retailer:</b><br><table align="center"><tr><td width="220" valign="top"><b>US retailer</b></td><td width="220" valign="top"><b>UK retailer</b></td></tr><tr><td valign="top"><a href="http://www.amazon.com/gp/product/B001FS1LLI?ie=UTF8&tag=flaguitoflapa-20&linkCode=as2&camp=1789&creative=9325&creativeASIN=B001FS1LLI"><img class="imgresponsive" src=pictures/amazoncom.jpg></a><img class="imgresponsive" src="http://www.assoc-amazon.com/e/ir?t=flaguitoflapa-20&l=as2&o=1&a=B001FS1LLI" width="1" height="1" border="0" alt="" style="border:none !important; margin:0px !important;" /></td><td valign="top"><a href="http://www.amazon.co.uk/gp/product/B001EI8TH8?ie=UTF8&tag=flaguitoflapa-21&linkCode=as2&camp=1634&creative=6738&creativeASIN=B001EI8TH8"><img class="imgresponsive" src="pictures/amazoncouk.jpg"></a><img class="imgresponsive" src="http://www.assoc-amazon.co.uk/e/ir?t=flaguitoflapa-21&l=as2&o=2&a=B001EI8TH8" width="1" height="1" border="0" alt="" style="border:none !important; margin:0px !important;" /></td></tr></table></p><br /><p><p align=center>---</p><br />For questions and comments please visits this thread in our forums: <a href=http://www.flatpanelshd.com/flatforums/viewtopic.php?f=5&t=54><i>http://www.flatpanelshd.com/flatforums/viewtopic.php?f=5&t=54</i></a></p>



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