KR100192945B1 - Panorama screen image converting apparatus for projector - Google Patents

Abstract

A projector for forming an image on a screen through a projection lens by an oblique deformation of an AMA includes a projection lens and a panoramic lens to adjust a panoramic lens to form a panoramic image on the screen And a panorama screen conversion device.

A projection lens group 6 fixed to the inside of the lens barrel 8 protruding from the case 4 of the main body 2 and projecting the R / G / B projection beam generated by the color image signal onto the screen (30, 32) for performing a key operation for forming a panorama picture by an R / G / B projection beam projected on a screen through the projection lens group (6) A memory means (34) for storing key data for recognizing a key operation state by the means (30,32), a memory means (34) for storing the key data by means of the key adjusting means (36) for recognizing the degree of operation and converting the R / G / B projecting beam into a shape corresponding to the panoramic image and projecting the projected beam, a motor drive means driven by the drive control of the control means 38, 40), rotation motors (22, 26) for performing a rotation operation by driving the motor driving means (38, 40) A gear unit for performing a gear operation for transmitting a rotational force in accordance with the operation of the rotary motors 22 and 26 and a gear unit for moving in correspondence with the gear operation of the gear unit, And a panoramic lens group for converting an R / G / B projecting beam projected through the projection lens group 6 into a light ratio in a panoramic screen shape.

Description

Panoramic screen converter of projectors

[0001] The present invention relates to a panoramic image conversion apparatus for a projector, and more particularly, to a panoramic image transformation apparatus for projecting an image by projecting an optical path-controlled projection light onto a screen through a projection lens by inclined deformation of an AMA equipped on a plurality of AMA panels And more particularly, to a panoramic image transforming apparatus for a projector which realizes a panoramic image on a screen by projecting a projection light projected from the projector through a projection lens.

In recent years, a projector as a projection type image display apparatus employing an AMA member and an apparatus has been developed for practical use and has been put to practical use. The projector employing such an AMA member is, for example, a large number of pixels An active matrix substrate in which a plurality of pixel driving elements, for example, of MOS transistors corresponding to the number of pixels for driving are arranged in the form of a matrix array, and an active matrix substrate on the active matrix substrate, And an AMA panel as an actuator for modulating an incident light by obliquely deforming in accordance with an image signal voltage applied from a pixel driving element.

Further, according to the projector in which the AMA panel is adopted as the three-plate structure in correspondence with the R / G / B color beam, the white light generated in the light source is condensed on the condenser lens and is passed through the source stop member to be shaped into a predetermined spherical shape or a rectangular shape The red (R) component and the green (G) component are reflected by the R-dichroic filter and the G-dichroic filter, respectively, while being reflected by the reflection mirror in the regular light beam, AMA panel and G-AMA panel which are warpedly deformed through an image signal voltage by an R color component and a G color component are incident on the G-AMA panel. The R color component and the R color component, which are optically controlled by the R-AMA panel and the G- The light of the G color component is reflected to the projection lens side through the field lens and the dichroic filter, and the light of the B (blue) component passing through the R-dichroic filter and the G- By the B-AMA panel which is warped and deformed in accordance with the image signal And is reflected toward the projection lens side through the field lens while adjusting the optical path.

As a result, a color beam of R, G, and B color components is projected on the screen through the projection lens, thereby forming a color image on the screen.

On the other hand, in the related art, a direct view type image display apparatus such as a television which is provided with a CRT (Cathode Ray Tube) as an image display means and forms an image by a scanning operation by an electron gun is adopted, The apparatus can adjust the scanning speed of the color image signal scanned from the electron gun by adjusting the vertical / horizontal deflection by the vertical / horizontal deflection coil on the CRT side so that the panorama picture can be implemented on the CRT screen.

However, in the case of a projector employing AMA, focusing and zooming can be performed on the light projected on the screen by moving the projection lens group consisting of a focusing lens and a zoom lens movably back and forth. However, the above-described direct-view type image display device has a structure that can not realize a panorama image, and thus has a disadvantage in that the configuration of the magnificent screen becomes difficult and the sensation on the viewer is reduced by half.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a projector for forming an image on a screen through a projection lens by inclined deformation of AMA, And to provide a panoramic screen conversion device of a projector which allows a panoramic screen to be formed on a screen.

According to an aspect of the present invention, there is provided a panoramic screen conversion apparatus for a projector, the projector comprising: a projection screen for projecting an R / G / B projection beam generated by a color image signal, The projector according to claim 1, further comprising: a key adjusting unit configured to perform a key operation for forming a panoramic image by an R / G / B projection beam projected on a screen through the projection lens group; Means for recognizing the degree of key operation by the key adjusting means on the basis of the key data of the memory means so that the R / G / B projecting beam is displayed on the panoramic screen Control means for performing drive control so as to be converted into a corresponding form and projected, motor drive means driven by drive control of the control means, drive of the motor drive means And a control unit that is provided to be in contact with the projection lens group and is moved in correspondence with the gear operation of the gear unit to perform a gear operation to transmit a rotational force in accordance with the operation of the rotation motor. And a panoramic lens group for converting an R / G / B projection beam projected through the projection lens group into a light ratio in the form of a panoramic image.

Preferably, the panoramic lens group is provided on the rear side of the projection lens group, and is movable in the left and right directions by the gear operation of the gear means, and each of the panoramic lens groups has an isosceles triangular shape and an R / G / B projection beam And the first and second panoramic lenses are formed in a curved arc shape.

The gear means includes first and second racks connected by first and second connecting portions of first and second panoramic lenses, first and second racks connected to the rotation motor through respective shafts so as to be rotatable, And a first and a second pinion gear-operated with the second rack.

According to the present invention configured as described above, AMA is employed to move two pairs of panoramic lenses in a projector that reproduces a Whirler image on a screen, and is brought into contact with the projection lens group to project the projection lens group and the panoramic lens The R / G / B projection beam is converted so as to have a panoramic image form, and is projected on the screen so that an image having a panoramic image can be formed on the screen.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial cut-away sectional view showing a state in which a panoramic screen conversion apparatus according to a preferred embodiment of the present invention is applied to a projector;

FIG. 2 is a perspective view showing an operating structure of the panoramic lens shown in FIG. 1,

3 is a block diagram for controlling the operation of the panoramic lens in the panoramic screen conversion apparatus of the projector according to the present invention;

4 is a view illustrating a state in which an image formed on a screen according to a preferred embodiment of the present invention operates a panoramic lens so as to have a gentle panoramic image effect,

5 is a view showing a state in which a panoramic lens is operated so that an image formed on a screen has a sharp panoramic screen effect according to a preferred embodiment of the present invention.

Description of the Related Art [0002]

2 --- Projector body, 4 --- Case,

6 --- projection lens group, 8 --- barrel,

10 --- first panoramic lens, 12 --- second panoramic lens,

14 --- first rack, 16 --- second rack,

18 --- first pinion, 20 --- second pinion,

22 --- first motor, 24 --- first fixed panel,

26 --- second motor, 28 --- second fixed panel,

30 --- remote control unit (remote control), 32 --- remote signal receiving unit,

34 --- Key data memory, 36 --- Microcomputer,

38 --- first motor driver, 40 --- second motor driver.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

That is, FIG. 1 is a partial cut-away sectional view showing a state in which a panoramic screen conversion apparatus according to a preferred embodiment of the present invention is applied to a projector, wherein a light source for generating white light in the projector body 2, G / B color beam reflected / passed through the dichroic filter is converted into an R / G / B color beam reflected / passed through the dichroic filter by a dichroic filter for selecting an R / G / B color beam among white light, A case 4 provided with an AMA panel or the like for adjusting the optical path in accordance with the B color component is provided in the case 4. A color image formed by the optical path adjustment of the AMA panel fixedly installed inside the lens barrel 8 projecting from the case 4 And a projection lens group 6 for projecting the projection light of the R, G, and B color beams corresponding to the signals onto the screen through focusing and zooming operations.

According to this figure, the projection light of the R, G, and B color beams, which are respectively provided inside the case 4 on the rear side of the projection lens group 6 and are incident by the movement operation, The first and second panoramic lenses 10 and 12 are provided so as to face each other with respect to the projection lens group 6 and the bottom surfaces of the first and second panoramic lenses 10 and 12, First and second racks 14 and 16 which are connected to each other through connection portions 10A and 12A and have a plurality of gear shafts formed on one side thereof are meshed with the first and second racks 14 and 16, The first and second pinions 18 and 20 are provided.

Here, the first and second panoramic lenses 10 and 12 are each formed in an isosceles triangle as shown in FIG. 2, and the portions where the projection light by the R, G, and B color beams are incident are curved Circular arc shape.

The first and second motors 22 and 26 connected to the first and second pinions 18 and 20 through the rotary shaft are fixed to the case 4 of the main body 2, 2 fixed to the first and second fixed panels 24 and 28. As shown in FIG. 2, the first and second racks 14 and 16 And the first and second pinions 18 and 20 are operated to shift the first and second panoramic lenses 10 and 12 to / from each other.

When the first and second panoramic lenses 10 and 12 are left / right moved by the rotation of the first and second motors 22 and 26, the first and second panoramic lenses 10 and 12 are equal in size to the rear surface of the projection lens group 6 So that the length is formed to have a half size with respect to the rear surface size of the projection lens group 6, and a complete concave lens shape is provided.

FIG. 3 is a block diagram for controlling the operation of the panoramic lens of the projector according to the present invention. In the apparatus of the present invention, reference numeral 30 denotes a remote controller (Remocon) And a function key for performing a key operation for moving the first and second panoramic lenses 10 and 12 for realizing a screen.

Reference numeral 32 denotes a remote signal receiving unit installed at an outer side of the case 4 of the projector body 2 and receiving a remote control signal by key operation of the remote control unit 30, And a key data memory in which the key data corresponding to the key input signal according to the key operation for moving the first and second panoramic lenses 10 and 12 from the remote control unit 30 is stored.

Reference numeral 36 denotes a key input unit for receiving a key input signal generated by a key operation of the remote control unit 30 through the remote signal receiving unit 32 and recognizing the key input based on the key data of the key data memory 34, And controlling the movement of the first and second panoramic lenses 10 and 12 in correspondence with the degree of movement of the first and second panoramic lenses 10 and 12.

Reference numerals 38 and 40 denote first and second motor drivers for driving the first and second motors 22 and 26 under the control of the microcomputer 36, respectively.

The operation of the present invention as described above will now be described in detail with reference to the accompanying drawings.

First, the white light generated through the light source provided in the case 4 of the projector body 2 is converted into a light beam shape of, for example, circular or rectangular shape by the source stop member, and the R / G / B When the AMA panel is divided into a plurality of color beams and a plurality of AMAs are tilted and deformed corresponding to a plurality of pixels by the image signal voltage by R / G / B color components according to a predetermined color image signal, / G / B color beam is controlled. As a result, an R / G / B color beam, which is optically controlled and reflected from the AMA panel, is projected onto the screen through the projection lens group 6 to form a predetermined image do.

In this case, when the key is operated so that the color image in which the function key of the remote control unit 30 is formed on the screen is implemented as a panorama picture, the microcomputer 36 controls the remote controller (not shown) 30 in accordance with the key data of the key data memory 34 and performs drive control in accordance with the degree of key manipulation. The first and second motor drivers 38, 40 The first and second motors 22 and 26 are driven under the drive control of the microcomputer 36 to rotate the first and second motors 22 and 26 and the first and second motors 22 and 26, The first and second pinions 18 and 20 and the first and second connecting portions 10A and 12A are connected to each other by gear operation with the first and second racks 14 and 16 while the pinions 18 and 20 are interlocked. The first and second panoramic lenses 10 and 12 connected to each other through the first and second lens groups 10 and 12 are moved upward and downward, That converts the projection light in the form of a panorama screen is to form an image in the form of a panorama screen on the screen.

On the other hand, when the remote controller 30 performs a key operation corresponding to a degree for forming a gentle panoramic image, the microcomputer 36 performs drive control corresponding to the degree of key operation of the remote controller 30 The first and second motors 22 and 26 are rotated by the driving of the first and second motor driving units 38 and 40 so that the first and second racks 14 and 16 and the first and second motors 22 and 26 are rotated, The second pinions 18 and 20 are gear-operated to move the first and second panoramic lenses 10 and 12 to form a gentle panoramic image.

As a result, as shown in FIG. 4, the first and second panoramic lenses 10 and 12 are not completely equal to the rear surface dimensions of the projection lens group 6, but are separated by a certain distance, Is displayed in the form of a gentle panorama picture.

Next, when the remote controller 30 is operated to implement a complete panorama image, the first and second motor drivers 38 and 40, which have been subjected to the drive control of the microcomputer 36, The first and second panoramic lenses 10 and 12 are moved while being rotated while the first and second motors 22 and 26 are rotatingly engaged to be matched with the rear surface dimensions of the projection lens group 6, As shown in the figure, a panoramic picture is formed such that the image of the left / right image area formed on the screen is rapidly widened and the image becomes narrower toward the center area.

According to the present invention as described above, a panoramic lens is provided on the side of a projection lens group configured to project a projection light corresponding to a color image on a screen in a projector employing AMA, and the projection light is converted into a light ratio in the form of a panoramic image In addition, since the degree of distortion of the panoramic image projected on the screen can be adjusted according to the degree of movement of the panoramic lens, it is possible to construct a more magnificent image, .

Claims (3)

A projection lens group 6 fixed to the inside of the lens barrel 8 protruding from the case 4 of the main body 2 and projecting the R / G / B projection beam generated by the color image signal onto the screen In the projector, Key adjusting means (30, 32) for performing a key operation for forming a panoramic image by an R / G / B projecting beam projected onto the screen through the projection lens group (6) Memory means (34) for storing key data for recognizing a key operation state by said key adjusting means (30, 32) Wherein the control means recognizes the degree of key operation by the key adjusting means (30, 32) on the basis of the key data of the memory means (36) so that the R / G / B projecting beam is converted into a shape corresponding to the panoramic image, Control means 36, Motor drive means (38, 40) driven by drive control of the control means (36) Rotation motors (22, 26) for performing a rotation operation by driving the motor drive means (38, 40) A gear means for performing a gear operation for transmitting a rotational force according to the operation of the rotary motors 22 and 26, The R / G / B projecting beam, which is provided to be in contact with the projection lens group 6 and is moved corresponding to the gear operation of the gear unit and projected through the projection lens group 6, is converted into a light ratio of a panoramic image And a panoramic lens group having a plurality of lens groups. The panoramic lens group according to claim 1, wherein the panoramic lens group is provided on the rear side of the projection lens group (6) and is movable in the left / right direction by a gear operation of the gear means and has an isosceles triangle shape, And the first and second panoramic lenses (10, 12) having a curved arc shape at a portion where the / B projection beam is incident. 3. The panoramic lens system according to claim 1 or 2, wherein the gear means comprises first and second panoramic lenses (10, 12) and first and second panoramic lenses (10, 12) And first and second pinions (18, 18) which are rotatably connected to the rotary motors (22, 26) via shafts and which move in gear with the first and second racks (14, 16) The projector according to claim 1,