Integrated high resolution image sensor and display on an active matrix array with micro-lens
First Claim
1. An integrated image sensor and liquid crystal display device comprising:
- a first semiconductor substrate;
a display thin-film transistor formed on said first semiconductor substrate;
a first display electrode connected to said display thin-film transistor, said first display electrode being formed on said first semiconductor substrate;
a sensor thin-film transistor formed on said first semiconductor substrate;
an image sensor connected to said sensor thin-film transistor, said image sensor being formed on said first semiconductor substrate;
a sensor electrode formed above said image sensor;
a liquid crystal layer disposed above said first display electrode and said sensor electrode;
a second display electrode formed on said liquid crystal layer and above said first display electrode;
a second semiconductor substrate covering said second display electrode and said liquid crystal layer; and
a color filter layer disposed between said first and second semiconductor substrates.
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Abstract
An integrated image sensor and display device includes both display and sensor thin-film transistors as well as image sensors in the active matrix array of a liquid crystal display. The display thin-film transistors and the liquid crystals control the brightness of a displayed image. The sensor thin-film transistors control the operation of the image sensors. A color filter is disposed between two semiconductor substrates of the device. A microlens is placed on the backside of the active matrix array substrate to focus and direct backlight through a display aperture. Another microlens is constructed on the side facing a user to focus and direct the outside image onto the image sensor of the active matrix array.
111 Citations
11 Claims
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1. An integrated image sensor and liquid crystal display device comprising:
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a first semiconductor substrate;
a display thin-film transistor formed on said first semiconductor substrate;
a first display electrode connected to said display thin-film transistor, said first display electrode being formed on said first semiconductor substrate;
a sensor thin-film transistor formed on said first semiconductor substrate;
an image sensor connected to said sensor thin-film transistor, said image sensor being formed on said first semiconductor substrate;
a sensor electrode formed above said image sensor;
a liquid crystal layer disposed above said first display electrode and said sensor electrode;
a second display electrode formed on said liquid crystal layer and above said first display electrode;
a second semiconductor substrate covering said second display electrode and said liquid crystal layer; and
a color filter layer disposed between said first and second semiconductor substrates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification