Projector/projection type switchable display apparatus

• US 20070109509A1
• Filed: 11/15/2006
• Published: 05/17/2007
• Est. Priority Date: 11/15/2005
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Young-chol
• Granted Patent: US 7,717,571 B2
• Time in Patent Office: Days
• US Class Current: 353/99
• CPC Class Codes: G03B 21/10 Projectors with built-in or built-on screen
• CPC Class Codes: G03B 21/28 Reflectors in projection beam in illumination beam G03B21/2066
• CPC Class Codes: H04N 5/7408 Direct viewing projectors, e.g. an image displayed on a video CRT or LCD display being projected on a screen
• CPC Class Codes: H04N 9/3129 scanning a light beam on the display screen scanning a light beam on a screen in displays other than projection devices G09G3/02; scanning systems in general G02B26/10; projectors using laser light sources in general H04N9/3161

Abstract

A projector/projection type switchable display apparatus includes: a main body unit having an image producing unit forming and emitting an image; and a cover unit that is rotatably connected to the main body unit. The cover unit includes an aspherical mirror enlarging and reflecting the image emitted from the main body unit; and a screen on which the image enlarged and reflected by the aspherical mirror is displayed.

Claims

1. A projector/projection switchable display apparatus comprising:

a main body unit comprising an image producing unit forming and emitting an image; and

a cover unit that is rotatably connected to the main body unit;

wherein the cover unit comprises;

an aspherical mirror enlarging and reflecting the image emitted from the main body unit; and

a screen on which the image enlarged and reflected by the aspherical mirror is displayed.

2. The display apparatus of claim 1, wherein a light emitting hole through which the image is emitted is formed in a side of the main body unit.

3. The display apparatus of claim 2, wherein, when the cover unit is at an angle to the main body unit, the aspherical mirror faces the light emitting hole of the main body unit, and the image is reflected by the aspherical mirror and displayed on the screen of the cover unit in a projection mode, and when the cover unit is folded over a top surface of the main body unit, the image emitted from the main body unit is directly displayed on an external screen in a projector mode.

4. The display apparatus of claim 2, further comprising a projection optical system installed in the light emitting hole of the main body unit to project the emitted image.

5. The display apparatus of claim 1, wherein the image producing unit comprises:

a plurality of light sources respectively emitting light beams having different wavelengths;

a plurality of light modulators respectively modulating the light beams according to color signals;

a plurality of light synthesizing units respectively synthesizing the light beams modulated by the light modulators into a single beam; and

vertical and horizontal micro scanning mirrors scanning the synthesized beam in a vertical direction and a horizontal direction, respectively.

6. The display apparatus of claim 5, wherein the light sources are laser diodes (LDs) or light emitting diodes (LEDs).

7. The display apparatus of claim 5, wherein the light synthesizing unit comprises a plurality of dichroic mirrors that are arranged in a row on a light emitting surface of the light modulators and respectively reflect corresponding light beams and transmit the other light beams.

8. A projector/projection switchable display apparatus comprising:

a main body unit that includes;

a plurality of light sources respectively emitting light beams having different wavelengths;

a plurality of light modulators respectively modulating the light beams according to color signals;

a plurality of light synthesizing units respectively synthesizing the light beams modulated by the light modulators into a single beam; and

vertical and horizontal micro scanning mirrors scanning the synthesized beam in a vertical direction and a horizontal direction, respectively; and

a cover unit rotatably connected to the main body unit, that includes;

an aspherical mirror enlarging and reflecting the synthesized beam emitted from the main body unit; and

a screen on which the synthesized beam enlarged and reflected by the aspherical mirror is displayed.

9. The display apparatus of claim 8, wherein the light sources are laser diodes (LDs) or light emitting diodes (LEDs).

10. The display apparatus of claim 8, wherein the light synthesizing unit comprises a plurality of dichroic mirrors that are arranged in a row on a light emitting surface of the light modulators and respectively reflect corresponding light beams and transmit the other light beams.

11. The display apparatus of claim 8, wherein a light emitting hole through which the image is emitted is formed in a side of the main body unit.

12. The display apparatus of claim 8, wherein, when the cover unit is at an angle to the main body unit, the aspherical mirror faces the light emitting hole of the main body unit, and the image is reflected by the aspherical mirror and displayed on the screen of the cover unit in a projection mode, and when the cover unit is folded over a top surface of the main body unit, the image emitted from the main body unit is directly displayed on an external screen in a projector mode.

13. A switchable display apparatus,. comprising:

a portable main body unit; and

a cover unit that is rotatably connected to the main body unit;

wherein the main body unit has an image producing unit for forming and emitting an image,

wherein the cover unit has an aspherical mirror enlarging and reflecting the image emitted from the main body unit, and a screen for displaying the image that has been enlarged and reflected by the aspherical mirror, and

wherein the switchable display apparatus is capable of displaying the image emitted by the main body unit on one of the screen of the cover unit and an external screen by rotating the cover unit.