Laptop Computer with Flatbed Scanner

A method of manufacture of a laptop computer for use as a flatbed scanner for documents or images, with the device herein termed the laptop computer with flatbed scanner, comprising:

• providing a laptop computer with a computer monitor screen on the upper lid which is rotatable to the horizontal position with the laptop computer monitor screen face up so that the document or image to be scanned can be placed face down on the scan area of the laptop computer monitor screen;
• providing a laptop computer with a computer monitor screen with hardware parts comprising a backlight source and thin-film transistor (TFT) with liquid crystal display (LCD) in each pixel, the combination termed the TFT-LCD;
• providing 3 modifications of the hardware parts in the scan area comprising:
• modification of the backlight source in the scan area in the laptop computer screen to allow it to emit a bright flash of white backlight during scanning in addition to the normal steady backlight when not scanning;
• modification of the liquid crystal display (LCD) in each pixel of the scan area to allow it to be completely transparent during the scanning steps comprising:
• Emission of the bright flash of white backlight at the start of scanning which passes through the transparent LCD of the pixel without any distortion or refraction in the direction normal to the computer screen towards the document or image to be scanned;
• Reflection of the flash of backlight from the document or image to be scanned;
• Detection of the reflected light by the thin-film transistor with optical sensor;
• Afterwards the LCD returns to its normal state;
• modification of the TFT-LCD to include a small thin-film transistor with optical sensor such as a phototransistor or photodiode in each pixel of the scan area of the laptop computer screen, in addition to the usual TFT operating the LCD of the pixel, that detects the intensity and color of the reflection of the bright flash of backlight from the document or image to be scanned and converts it into an electric signal which is then sent to the TFT-LCD in the pixels to display the scanned information on the laptop computer monitor screen for the user to view and save in an electronic file;