Dell Latitude E7440: Installing Touchscreen into non-Touch version

Hi All,

I have a non-touch Dell E7440 and am regretting not getting the touchscreen version. Can I just order the touchscreen display assembly from Dell/eBay and install it myself?

Does the Touchscreen version have an extra port on the motherboard that my non-touch version does not have? Thank you.

 

I dont think it will be that easy. Dell uses carbon fibre for the top lid to compensater for the weight of the glass that is used for the touch. I am pretty sure there will be some problem with the extra thickness of the touch version. Seems like the top part of with the screen assembly are totally different. Just a thought because I have been tinkering with one e7440 touch and beginning to like it. The onely thing that still bugs me is the lack of stiffness on the keyboard deck as compared to 6x20/30 series so I am still undecided whether to keep or not the new 7440 touch

 

I have had both the touch and non touch. The assembly looks totally different.

 

It's not totally different.

Hinge cover is different, bottom base is almost the same (color is just different).

 

I've been asking myself this same question in reference to my Dell E5440 I've had for a while. I have an HP zBook 14 touch, and I can't go back. Unfortunately, my dell is for work and I have no option, but adding the screen is an option.

Dell's tech line is 1-800-357-3355, I am calling when the time zones align tomorrow for me to check on parts and such.

Here's my very limited knowledge speculation based on looking at my Zbook and working on Cell phone screens extensively.

I'm guessing that the screen/lid is going to be thicker, and will either have more depth or a different bezel to accommodate. The hope is the hinges and everything stay in the same place, but they may be offset to accommodate the larger thickness, meaning you'd need a new lid/frame etc to house the new screen. As well, I can't seem to find a digitizer/lcd combo anywhere that would be drop in without the rear panel, so your best bet may be buying the whole panel/lid etc from a broken laptop. If you check this youtube video, my guess is most pannels are the lcd and digitizer seperate pieces that are installed seperately, like at about 18minutes, Similar to a phone screen. Toshiba L55t L55 TouchScreen take apart and reassemble - YouTube (yes, I know a digitizer and lcd are two different pieces, I mean you don't buy them as a pre-assembled stack, is my guess)

I don't know if dell will offer this info, but that may be the best method of learning it. Please share anything you find out. I'm thinking you will need to change drivers to get it to work correctly, so keep this in mind.

 

I've never done this but the touchscreens don't seem to have an lcd bezel. It's all built into one thing, the entire assembly. To take it off I think you'd need a heat gun and the try to separate it, giving almost 0% success rate? I think if you bought the whole assembly it would be easy (the lcd cover is different and possibly thicker too). Also touchscreen is connected by usb also.

 

So I think calling dell is actually going to be your best bet. I did call them about my question on the E5440 today, and I got a good response from a tech support person. He looked up the parts listings for touch and non-touch e5440s and found there are 5 different parts, the back cover, front bezel or cover, LCD screen/Digitizer, LCD screen ribbon cable, and the hinge covers. If one gets all those, it can be added on fairly easy, you are basically replacing the whole lid.

However, if buying new from dell = expensive, so used parts are the best/only real option, and hard to come by. He also mentioned, that at least on my laptop, they have a return and trade in program, where I could return my latptop and pay the difference on the model I wanted and have that sent out. My laptop is now 3 months old, so you may still have this option, and it is by far the best one. If you do modify your dell, I was told that you would void the warranty on the parts you do change out, therefore your screen would no longer be covered.

Anyway, give tech support a try and see if you can get an agreeable answer, good luck.

 

Hello everyone I need some information. A while back I scored a hell of a deal on a refurbished e7240 due to a pricing mistake. Long story short, the model I received included the terrible matte 13x7 HD display with piss poor angle views. Just this last week I scored a full 1080p touch screen entire screen assembly and I snatched it up. Today it arrived and I promptly installed it. No problems except at the end, the hinge cover from my originally non-touch doesn't fit this new touchscreen assembly which looks and feels great by the way. Can someone help me out with a Dell part number for the hing cover of the touchscreen models. Thanks very much.

P.S. The IPS 1080p touchscreen is light years ahead of the matte non touch 13x7 panel in quality and viewing angles. I still don't understand how Dell can release a product with such a **** panel to begin with. Thanks.

 

Do you think you could give me the model ID of your original panel and the model ID of your new touch-screen model?

I am buying a E7240 locally tomorrow and plan on upgrading the panel as well and would love to get the specifications of your two panels to figure out what would be compatible with mine.

 

Hi, I'm typing this right now from my E7440 1080p non--touch. I'm looking to get a touch panel because they look sweet and function well.

After a bit of poking around I'm 99% sure the part number for the 1080p touchscreen assembly(carb. fib. cover, glass, lcd, digitizer whatever yada yada yada) is PMJMX. Ebay has them on the expensive side for about $400. I think there are some part sites that list for around $250.

If you happen to find one and upgrade, do let me know where from 'cos I want one too. : )
Hope it helped, thanks.

PS: oops just noticed you were looking for the e7240. My bad.