A good source of replacement displays is from 12C of the same vintage, there was lots of them produced and they can often be obtained for a reasonable cost.? If you you look in the archives of the forums on hpmuseum.org you will find advise on what to look for for a suitable replacement.? I have done the surgery myself and it is not too difficult. Paul. On 2017-12-02 9:11 PM, Alexandre Souza via cctalk wrote:

On Sun, Dec 3, 2017 at 4:39 AM, Chuck Guzis via cctalk <cctalk at classiccmp.org> wrote: I am pretty sure the orginal fault is the liquid crystal material leaking out of the display. At rest the liquid crystal twists the plane of polarisation of light through 90 degrees, when the electric field it applied then the molecules line up and it doesn't twist the plane of polarisation. The display has a polarising filter on each side, arranged at 90 degrees to each other. So at rest light passes with no problems, when the field is applied you are effectively looking through crossed polarisers so it's dark. Of course if the liquid crystal leaks out you are looking through crossed polarisers with nothing between them so you get a black display. The other Voyagers (10C, 11C, 12C, 15C) of the same vintage should use the same display. But more recent 12Cs do not as far as I know. You have to get one that uses 3 button cells, not the version using a lithium cell. There are at least 2 versions of the construction of the old Voyagers. Initially the electronics was assembled on a flexible PCB fitted to a plastic frame. The LCD was clamped onto that. There was a tail on the flexible PCB that connected to the keyboard (normal PCB heat-staked to the top case) with a zebrastrip connector. Later on, it was all on one PCB heat-staked to the top case. I've seen 16Cs of both constructions and as far as I know the display are the same. But if yours is the later version you will have to cut the heat stakes to get the PCB out to replace the display and re-attach it afterwards. -tony