KR19980023191A - Panorama screen converter of the projector - Google Patents

Abstract

The present invention provides a projector which forms an image on a screen through a projection lens by an inclination deformation of the AMA, and includes a panoramic lens together with the projection lens, so that the panoramic screen is formed on the screen by adjusting the panoramic lens. Provides a panoramic screen converting device.

A projection lens group 6 fixedly installed inside the barrel 8 protruding from the case 4 of the main body 2 to project the R / G / B projection beam generated by the color image signal onto the screen; A projector equipped with: key adjustment means (30,32) for performing key operation for forming a panoramic image by an R / G / B projection beam projected on a screen through the projection lens group (6), and the key adjustment Memory means 34 in which key data for recognizing a key operation state by means 30 and 32 is stored, and a key by the key adjusting means 30 and 32 based on the key data of the memory means 36; A control means 36 for controlling driving so that the R / G / B projection beam is converted into a form corresponding to the panoramic screen and projected by recognizing the degree of operation; and a motor driving means driven by the drive control of the control means 36 ( 38 and 40, rotary motors 22 and 26 which perform rotational operations by driving the motor driving means 38 and 40, Gear means for performing a gear operation for transmitting the rotational force according to the operation of the rotary motors (22, 26), and installed in contact with the projection lens group (6) is moved corresponding to the gear operation of the gear means And a panoramic lens group for converting the R / G / B projection beam projected through the projection lens group 6 into a light beam in the form of a panoramic screen.

Description

Panorama screen converter of the projector

The present invention relates to a panoramic screen converting apparatus of a projector, and more particularly, to project a projection light adjusted by an optical path by tilting deformation of an AMA provided in a plurality of AMA panels onto a screen through a projection lens to form a predetermined image. The present invention relates to a panoramic screen converting apparatus of a projector for transforming projection light projected through a projection lens from a projector to implement a panoramic screen on a screen.

Recently, as a projection type image display device employing an AMA member and a device, the development of the projector has been promoted for practical use, and the projector employing such an AMA member has a large number of pixels provided on a screen of, for example, 640 * 480 dimensions. For driving, a plurality of pixel driving elements made of, for example, MOS transistors corresponding to the number of pixels are formed in an active matrix substrate arranged in the form of a matrix array, and a number corresponding to a plurality of pixels on the active matrix substrate, respectively. An AMA panel is provided as an actuator which is inclinedly deformed in accordance with an image signal voltage applied from a pixel driver and modulates incident light.

In addition, according to the projector in which the AMA panel has a three-plate structure corresponding to the R / G / B color beam, the white light generated from the light source is condensed on the condenser lens and passed through the source stop member to be shaped into a predetermined rectangle or rectangle. In the normalized light beam, the R (Red) component and the G (Green) component are reflected by the reflecting mirrors, respectively, by the R-dichroic filter and the G-dichroic filter, respectively. Incident on the R-AMA panel and the G-AMA panel which are inclinedly deformed through the image signal voltages of the R color component and the G color component, and the R color component controlled by the optical path by the R-AMA panel and the G-AMA panel; The light of the G color component is reflected toward the projection lens through the field lens and the dichroic filter, and the light of the B component passing through the R-dichroic filter and the G-dichroic filter is the color of the B color component. By B-AMA panel which is inclined deformation in accordance with image signal It is reflected to the projection lens side through the field lens while adjusting the optical path.

Accordingly, the color beam of the R / G / B color component is projected onto the screen through the projection lens, thereby forming a color image on the screen.

On the other hand, conventionally, 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 used. In the apparatus, the panoramic screen can be implemented on the CRT screen by adjusting the scanning speed of the color image signal scanned from the electron gun by the vertical / horizontal deflection adjustment by the vertical / horizontal deflection coil on the CRT side.

However, in the case of the projector employing AMA, focusing and zooming on the light projected on the screen is possible by manipulating the projection lens group consisting of a focusing lens and a zoom lens to move forward and backward. However, as the above-described direct-view image display apparatus has a structure in which the implementation of the panoramic screen is impossible, the configuration of the magnificent screen is not only difficult, but also the sensation of the viewer is halved.

Accordingly, the present invention has been made in view of the above circumstances, and in the projector which forms an image on the screen through the projection lens by the inclination deformation of the AMA, the projection lens is provided with the panorama lens and the panorama lens is adjusted through the adjustment operation. It is an object of the present invention to provide a panoramic screen converting apparatus of a projector for forming a panoramic screen on a screen.

According to the panoramic image conversion apparatus of the projector according to the present invention to achieve the above object, the R / G / B projection beam generated by the color image signal is fixed to the inside of the barrel protruding from the case of the main body screen A projector having a projection lens group for projecting onto an image, the projector comprising: key adjustment means for performing key operation for forming a panoramic image by an R / G / B projection beam projected on a screen through the projection lens group; A memory means for storing key data for recognizing a key operation state by the means, and a key operation degree by the key adjusting means based on the key data of the memory means, and the R / G / B projection beam is displayed on the panoramic screen. Control means for driving control to be converted into a corresponding form and projecting, motor driving means driven by drive control of the control means, driving of the motor driving means And a gear means for performing a gear operation for transmitting a rotational force according to the operation of the rotation motor, and a gear motor for contacting with the projection lens group and being moved in correspondence with the gear operation of the gear means. Provided is a panoramic screen converting apparatus of a projector having a panoramic lens group configured to convert an R / G / B projection beam projected through a projection lens group into a light beam in a panoramic screen form.

Preferably, the panoramic lens group is installed at the rear side of the projection lens group and is movable to the left / right side by the gear operation of the gear means, each having an isosceles triangular shape and simultaneously receiving an R / G / B projection beam. It is configured to include the first and second panoramic lens consisting of a curved arc shape of the site.

The gear means may be pivotally connected to the first and second racks connected by the base portions of the first and second panoramic lenses and the first and second connecting portions, and to the rotary motor, respectively, via the shaft. And first and second pinions geared with the second rack.

According to the present invention configured as described above, two projectors are projected through the projection lens group and the panorama lens by moving two sets of panoramic lenses in contact with the projection lens group in the projector which adopts AMA to reproduce the fuller image on the screen. The R / G / B projection beam is converted to have a panoramic screen shape and projected onto a screen, so that an image having a panoramic screen can be formed on the screen.

1 is a partial cutaway sectional view showing a state in which a panoramic screen converting apparatus according to an embodiment of the present invention is applied to a projector;

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

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

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

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

Explanation of symbols on the main parts of the drawings

2 --- projector body, 4 --- case,

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

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

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

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

22 --- first motor, 24 --- first fixing panel,

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

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

34 --- key data memory, 36 --- microcom,

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

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 cutaway sectional view showing a state where a panoramic screen converting apparatus according to a preferred embodiment of the present invention is applied to a projector, and according to the drawing, a light source for generating white light in the projector body 2 and the shape of a beam A source stop member for varying the power, a dichroic filter for selecting R / G / B color beams in white light, and an R / G / B color beam reflected / passed from the dichroic filter. A case (4) having an AMA panel or the like for adjusting the optical path corresponding to the B color component is provided, and is fixedly installed inside the barrel (8) protruding from the case (4) to generate a color image generated by the optical path control of the AMA panel. A projection lens group 6 for projecting projection light of an R / G / B color beam corresponding to a signal onto a screen through focusing and zooming operations is provided.

According to the figure, the projection light of the R / G / B color beams, which are respectively installed in the case 4 on the rear side of the projection lens group 6 and is incident by the movement operation, is converted into the light of the panorama screen form. The first and second panoramic lenses 10 and 12 are installed so as to face each other with respect to the projection lens group 6, and the first and second bottom surfaces of the first and second panoramic lenses 10 and 12 and the first and second panoramic lenses 10 and 12, respectively. The first and second racks 14 and 16, which are connected via the connecting portions 10A and 12A and have a plurality of gear mountains formed on one side thereof, are installed, and the gears are engaged with the first and second racks 14 and 16. The first and second pinions 18 and 20 are installed.

Here, as shown in FIG. 2, the first and second panoramic lenses 10 and 12 each have an isosceles triangular shape and curved portions where projection light is incident by the R / G / B color beams are respectively curved. It consists of arc shape.

In addition, the first and second motors 22 and 26, which are connected to the first and second pinions 18 and 20 via a rotation shaft, are fixed to the case 4 of the main body 2. It is installed to be fixed to the second fixed panel (24, 28), as shown in Figure 2, the first and second rack (14, 16) in accordance with the rotation operation of the first and second motor (22, 26) ) And the first and second pinions 18 and 20 are geared to move the first and second panoramic lenses 10 and 12 to the left and right.

In addition, the first and second panoramic lenses 10 and 12 are the same as the rear dimensions of the projection lens group 6 when the left / right movement is completed by the rotation of the first and second motors 22 and 26. The length of the projection lens group 6 is formed so as to have a half dimension with respect to the rear dimension of the projection lens group 6, and a shape of a complete concave lens.

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. In the device of the present invention, the reference numeral 30 is a panorama composed of a remote controller (remote controller). Represents a remote control unit having a function key for performing a key operation for the movement of the first and second panoramic lenses (10, 12) for the implementation of the screen.

In addition, reference numeral 32 denotes a remote signal receiver installed at a predetermined portion outside the case 4 of the projector main body 2 to receive a remote control signal by a key operation of the remote controller 30, and 34 denotes the above. A key data memory in which key data corresponding to a key input signal according to a key operation for moving the first and second panoramic lenses 10 and 12 from the remote control unit 30 is memorized.

Further, reference numeral 36 receives a key input signal by a key operation of the remote control unit 30 through the remote signal receiving unit 32 and recognizes the key data of the key data memory 34 on the basis of the key operation. A microcomputer for driving control such that the first and second panoramic lenses 10 and 12 are moved corresponding to the degree is shown.

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

Next, the operation of the present invention made as described above will be described in detail with reference to the accompanying drawings.

First, white light generated through the light source provided in the case 4 of the projector body 2 is converted into, for example, a circular or rectangular light beam by a source stop member, and then R / G / B through a dichroic filter. When divided into color beams and incident on the AMA panel, the AMA panel inclines and deforms a plurality of AMAs in response to a plurality of pixels due to image signal voltages of R / G / B color components according to a predetermined color image signal. The optical path of the / G / B color beam is adjusted, and as a result, the R / G / B color beam reflected and adjusted by the optical path from the AMA panel is projected on the screen through the projection lens group 6 to form a predetermined image. do.

At this time, when the function key of the remote control unit 30 is keyed so that the color image formed on the screen is implemented as a panoramic screen, the microcomputer 36 receives the remote control unit (received through the remote signal receiver 32). The key input signal corresponding to the key operation of 30) is recognized by the key data of the key data memory 34, and drive control is performed in accordance with the key operation accuracy. In the first and second motor driving units 38 and 40, First and second motors connected to the first and second motors 22 and 26 through a rotating shaft as they are driven under the drive control of the microcomputer 36 to rotate 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 driven by the pinions 18 and 20 being interlocked and geared with the first and second racks 14 and 16. Colors passing through the projection lens group 6 while the first and second panoramic lenses 10 and 12 connected to each other are moved up and down with each other. 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 control unit 30 is operated with a key corresponding to the degree of formation of a gentle panoramic screen, the microcomputer 36 performs drive control corresponding to the key operation degree of the remote control unit 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, and the first and second racks 14 and 16 and the first and second motors are rotated. The second pinions 18 and 20 are geared to move the first and second panoramic lenses 10 and 12 to form a smooth panoramic view.

As a result, as shown in Fig. 4, the first and second panoramic lenses 10 and 12 are separated from each other by a predetermined distance without being completely identical to the rear dimension of the projection lens group 6, and thus on-screen. The image by the color beam formed in the is displayed in the form of a gentle panoramic screen.

Then, when the remote control unit 30 is keyed to realize a complete panoramic screen, the first and second motor driving units 38 and 40 under the driving control of the microcomputer 36 are operated. As the first and second motors 22 and 26 are rotated and moved, the first and second panoramic lenses 10 and 12 are combined to be matched with the rear dimensions of the projection lens group 6. As shown in the drawing, the image of the left / right image area formed on the screen is rapidly widened, and the panoramic screen is narrowed toward the center area.

According to the present invention made as described above, by installing a panoramic lens on the projection lens group side to project the projection light corresponding to the color image on the screen in the projector employing the AMA and converts the projection light into a light beam in the form of a panoramic screen In addition, the degree of curvature of the panoramic image projected on the screen can be adjusted according to the degree of movement of the panoramic lens, so that a more magnificent screen can be constructed, and the excitement of viewing can be improved. Will have

Claims (3)

A projection lens group 6 fixedly installed inside the barrel 8 protruding from the case 4 of the main body 2 to project the R / G / B projection beam generated by the color image signal onto the screen; Equipped projector, Key adjusting means (30, 32) for performing a key operation for forming a panoramic image by the R / G / B projection beam projected on the screen through the projection lens group (6); Memory means 34 in which key data for recognizing a key operation state by the key adjustment means 30 and 32 is stored; On the basis of the key data of the memory means 36, the key control means 30, 32 recognizes the degree of key operation and drive control so that the R / G / B projection beam is converted into a form corresponding to the panoramic screen and projected. Control means 36, Motor drive means (38,40) driven by drive control of the control means (36), Rotary motors 22 and 26 which perform rotational operations by driving the motor driving means 38 and 40, Gear means for performing a gear operation for transmitting a rotational force in accordance with the operation of the rotary motors (22, 26), Installed to be in contact with the projection lens group 6 is moved in response to the gear operation of the gear means and converts the R / G / B projection beam projected through the projection lens group 6 to a light beam in the form of a panoramic screen And a panoramic lens group configured to convert the panoramic screen of the projector. 2. The panoramic lens group according to claim 1, wherein the panoramic lens group is installed at the rear side of the projection lens group 6 and is movable to the left and right by the gear operation of the gear means, respectively, having an isosceles triangle shape and R / G. A / B panoramic display conversion device for a projector, characterized in that it comprises a first and second panoramic lenses (10, 12) made of a curved arc shape where the projection beam is incident. The first and second gears according to claim 1 or 2, wherein the gear means are connected to the bottom portions of the first and second panoramic lenses 10 and 12 by the first and second connecting portions 10A and 12A. First and second pinions 18, which are connected to the racks 14 and 16 and the rotary motors 22 and 26 so as to be rotatable through the shafts, respectively, and which are geared with the first and second racks 14 and 16. , 20) a panoramic screen conversion apparatus of the projector, characterized in that comprises a.