To find out the display type, go into the Device Manager (My Computer -> Properties -> Hardware) and under Monitors, get the properties for "Plug and Play Monitor". In the Details tab you will see something like "DISPLAY\SEC5557\blahblahblah". The SEC5557 is the relevant part. The SEC prefix means that the panel is made by Samsung Electronics Corporation.
My M1710 came with a SEC3155 which was quite nice but rather unevenly lit. On the advice of others, I got Dell to change the screen. They put in a SEC5557, which is more evenly lit but unfortunately seems inferior in most other ways. There is more backlight leakage at the edges, and the black level is not so good. There is a more noticable "grain" or "sparkle" effect. The SEC5557 is much less bright than I remember the SEC3155 being. Now, Dell advertises the M1710 as having a 30% brighter screen than previous models. Also, I see many posts from M170/XPS2/9xxx owners here talking about the SEC5557, which leads me to suspect that Dell has given me a "previous generation" screen. Also, I notice that the default display settings (e.g. Contrast=46%, Gamma=9%) seem tuned for the SEC3155 and look really "washed out" with the SEC5557. OK, turning the gamma down helps but that's not the point.
I asked Dell whether they sent me the wrong part, and they said no, it is definitely the correct part. So what's the story?
My M1710 came with a SEC3155 which was quite nice but rather unevenly lit. On the advice of others, I got Dell to change the screen. They put in a SEC5557, which is more evenly lit but unfortunately seems inferior in most other ways. There is more backlight leakage at the edges, and the black level is not so good. There is a more noticable "grain" or "sparkle" effect. The SEC5557 is much less bright than I remember the SEC3155 being. Now, Dell advertises the M1710 as having a 30% brighter screen than previous models. Also, I see many posts from M170/XPS2/9xxx owners here talking about the SEC5557, which leads me to suspect that Dell has given me a "previous generation" screen. Also, I notice that the default display settings (e.g. Contrast=46%, Gamma=9%) seem tuned for the SEC3155 and look really "washed out" with the SEC5557. OK, turning the gamma down helps but that's not the point.
I asked Dell whether they sent me the wrong part, and they said no, it is definitely the correct part. So what's the story?






