با سلام واحترام
دوست گرامی نمایشگرهای لپ تاپ ، نسبت به مانیتورهای رومیزی فاقد المانهای زیر هستند
1-منبع تغذیه
2-برد RGB
3- بایوس جهت شناسایی INTERFACE
و....
بنابراین یک ال سی دی لپ تاپ به تنهایی درواقع فقط نقش پنل رو در مانیتورهای رومیزی ایفا می کنند .
برای استفاده از اونها بعنوان یک EXTERNAL MONITOR باید ضعف های اون رو برطرف کرد .نمیدونم شاید برد مبدل آماده برای اینکار در دسترس باشه . اما بهرحال یه نگاهی به مقاله زیر که از یک سایت خارجی نقل قول کردم بیاندازید .با تشکر
How do I connect my VGA card to a LCD display taken from an old laptop ?
Many people have recently started to ask how to connect an LCD screen taken from an old laptop computer. This is a very common question in many discussion forums. The common answer is NO.
Circuit diagram Laptop LCD Display to VGA Interface Project
The LCD is generally driven by a custom chip set and for many laptops, the interface requirements are very different than in VGA interface. Generally the needed conversion is a difficult and expensive task. This is not a task for a novice, and many professionals will also not bother.
Circuit diagram Laptop LCD Display to VGA
Circuit diagram Laptop LCD Display to VGA Maxim
Circuit diagram Laptop LCD Display to VGA display
Circuit diagram Laptop LCD Display to VGA
The real answer is: IF the screen can directly accept a VGA input signal (which the majority of LCD screen used in laptops don’t accept). If the display has a VGA input, or some other analogue RGB input, you can propably get VGA signal wired to that display in some way and propably picture with some cating. Otherwise you’re much better off just buying a ready made LCD monitor.
If the display does not have analogue RGB inputs (like practically all LCD screens in laptops use), there is no simple solution for this conversion because the differences of the interfaces used in normal VGA monitor connections and the interfaces used in laptop LCD screen. The LCD screen on laptops typically use a special digital inteface between the graphics controller and LCD screen itself. Those interfaces can be special high speed parallel or serial interaces and there are many flavour of them in use. The graphics cards inside the laptops have that special interface compatible with the display in this laptop, but normal PC graphics cards do not have this kind of interfaces. One problem is also that there is wide variety of LCD display interfaces in use, so first you need to figure out what interface is used (can get hard) and then get somewhere information how to interface to it (information might not be publically available). Here is a list of some LCD screen interfaces used or in-use nowadays:
- Analog VGA (used in external LCD displays but not in laptops normally)
- 44-pin TTL parallel
- TTL level clock and 8 data lines interface that has signals that match with 26 pin “VGA feature connector