JPH11296105A - Image reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image reproducing device in simple structure at low cost by rotating a power supplying part according to a vertical synchronizing signal and emitting unit light emitting bodies, which are horizontally and parallelly provided, according to a horizontal synchronizing signal. SOLUTION: On the surface of a rotator 1, four horizontal light emitting parts 10 are mounted at the equal interval of 90 deg.. By the side of the rotator 1, a display screen 2 is provided. The display screen 2 is composed of a translucent light scattering plate. Besides, an optical element 3 is arranged between the rotator 1 and the display screen 2. The optical element 3 is a lens, converts light L1, L2, L3...Ln irradiated from the horizontal light emitting parts 10 to parallel beams and makes then incident on the display screen 2. Then, a motor rotates the rotator 1 according to a signal transmitted from a vertical synchronizing signal generating circuit. Thus, four horizontal light emitting parts 10 provided on the surface of the rotator 1 successively irradiate the light L1, L2, L3...Ln from up to down toward the display screen 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reproducing apparatus for displaying a color image on a screen.

[0002]

2. Description of the Related Art Conventionally, a cathode ray tube, a liquid crystal panel, a plasma panel and the like have been used as an image reproducing apparatus such as a television receiver and a display of a personal computer. A cathode ray tube forms an image using an electron gun and a deflection coil. In a liquid crystal panel or a plasma panel, a display screen is divided into a large number of pixels in a matrix, and each pixel emits light in accordance with an image signal.

[0003]

However, each of the above-mentioned conventional image reproducing apparatuses has a complicated structure and a high cost.

Accordingly, an object of the present invention is to provide an image reproducing apparatus which can be realized at a low cost with a simple structure.

[0005]

According to the present invention, there is provided a horizontal light emitting section in which a plurality of unit light emitting elements composed of a combination of light emitting elements of a plurality of colors are juxtaposed in the horizontal direction, and a rotating light emitting section on which the horizontal light emitting section is mounted. Body, a power unit for rotating the rotating body, and a display screen on which light emitted by the unit light emitting unit of the horizontal light emitting unit is radiated, the power unit is rotated according to a vertical synchronization signal, and the horizontal An image reproducing apparatus characterized in that an image is projected on the display screen by causing unit light emitters arranged in parallel in a direction to emit light in accordance with a horizontal synchronization signal.

Preferably, the display screen is formed of a translucent light diffusing plate, and the display screen is viewed from a side opposite to the rotating body.

Preferably, the rotating body is a cylindrical drum, the horizontal light-emitting portion is mounted on the drum, and a unit light emission of the horizontal light-emitting portion is provided between the rotating body and the display screen. An optical element for converting light emitted from the body into parallel light was provided.

Preferably, the rotating body is a belt that rotates along a pulley, and the horizontal light emitting unit is mounted in a direction crossing the belt.

The plurality of colors are R, G, and B.

[0010]

According to the present invention, the rotating body is rotated in accordance with the vertical synchronization signal, and the unit light emitting bodies of the plurality of horizontal light emitting units arranged in the horizontal direction are sequentially illuminated in accordance with the horizontal synchronization signal. Project an image on the display screen.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a side view of the image reproducing apparatus, FIG. 2 is a structural view of the image reproducing apparatus, FIG. 3 is a structural view of a horizontal light emitting unit of the image reproducing apparatus, and FIG. 4 is a perspective view of a signal transmitting / receiving unit of the image reproducing apparatus. 5 is a plan view of a unit light emitter of a horizontal light emitting unit of the image reproducing apparatus, FIG. 6 is a block diagram of a control system of the image reproducing apparatus, and FIG. 7 is a front view of a display screen of the image reproducing apparatus.

In FIG. 1, a rotating body 1 is a cylindrical drum. On the surface of the rotating body 1, a horizontal light emitting portion 10 is 90 °.
Are mounted at equal intervals. A display screen 2 is provided on the side of the rotating body 1. The display screen 2 is made of a translucent light diffusion plate. An optical element 3 is provided between the rotating body 1 and the display screen 2. The optical element 3 is a lens, and the light L1, L2, L
3. Convert Ln into parallel light and make it incident on the display screen 2.

In FIG. 2, the horizontal light-emitting section 10 is constituted by arranging a plurality of unit light-emitting bodies 11 on the surface of the rotating body 1 in a row in the axial direction. In this example, the number is 533. In FIG. 5, the unit light emitting body 11 is composed of a combination of an R light emitting element 11R emitting red light R, a B light emitting element 11B emitting blue light B, and a G light emitting element 11G emitting green light G. The horizontal light emitting unit 11 is mounted on the surface of the rotating body 1 with a synthetic resin 12.

In FIG. 2, horizontal shafts 4 and 5 are mounted on both ends of the rotating body 1, and the shafts 4 and 5 are
Is rotatably supported. A rotating shaft 8 of a motor 7 as a power unit is connected to one shaft unit 4. Motor 7
When the cylinder rotates, the cylindrical body 1 rotates about the shaft portions 4 and 5.

In FIG. 2 and FIG.
A lead wire 21 is connected to each of the unit light-emitting bodies 11, and the lead wire 21 is connected to a lead wire 22 having a narrow pitch. A receiving coil 2 is provided at the end of the lead wire 22.
3 are provided. A cylindrical connector 24 is inserted through one shaft 5. The connector 24 is located inside the rotating body 1. 3 and 4, on the surface of the connector 24, a large number of electrodes 25 are provided in a matrix. 1 and 4, the electrode 25 is provided in a range of 90 ° facing the display screen 2. A is
The range is 90 degrees where the electrode 25 is provided.

The number of electrodes 25 in the horizontal direction is 533, and the number of electrodes in the circumferential direction of the connector 24 is 525. The number of coils 23 and the number of electrodes 25 in the horizontal direction are the same, and each coil 23 faces each electrode 25. Each of the coils 23 and the electrodes 25 constitute a non-contact type signal transmission / reception unit, and transmits / receives an image signal by an electric field or a magnetic field. Each electrode 2
5 is connected to a horizontal synchronizing signal generating circuit 32 and a luminance signal generating circuit 33 by a cord 26.

Next, the control system will be described with reference to FIG. A vertical synchronizing signal generation circuit 3 is provided for the antenna 30 for receiving radio waves.
1, a horizontal synchronizing signal generation circuit 32 and a brightness control circuit 33 are connected. The antenna 30 is an input unit for an image signal. The motor 7 is connected to the vertical synchronization signal generation circuit 31 via a motor control unit 34. The horizontal synchronizing signal generation circuit 32 and the brightness control circuit 33 are connected to the electrode 25 serving as a signal transfer section.
And a coil 23 to the horizontal light emitting unit 10.

The unit light emitters 11 of the horizontal light emitting section 10 emit light in order from left to right in FIGS. 2 and 3 by the horizontal synchronizing signal transmitted from the horizontal synchronizing signal generating circuit 32.
Further, the motor 7 rotates the rotating body 1 in accordance with a signal transmitted from the vertical synchronization signal generating circuit 31, whereby the four horizontal light emitting units 10 provided on the surface of the rotating body 1 in FIG. Light L1, L from top to bottom
2, L3... Ln are sequentially irradiated.

This image reproducing apparatus has the above configuration, and its operation will be described below. In FIG. 1, the rotating body 1 is pitch-rotated in the direction of arrow a. The pitch rotation speed is, for example, 15 times per second. In FIG. 1, when the horizontal light emitting unit 10 is located in an area A of 90 ° on the front surface facing the display screen 2, a horizontal synchronization signal and a luminance signal are transmitted from the electrode 25 to the coil 23, and the horizontal light emitting unit 10 is horizontally aligned. 2 emits light sequentially from left to right in FIG.
Since the four horizontal light emitting units 10 are provided on the surface of the rotating body 1, 60 rotating screens per second are projected on the display screen 2 in the vertical direction by rotating the rotating body 1 15 times per second.

The motor 7 is controlled by a vertical synchronizing signal transmitted from a vertical synchronizing signal generating circuit 31. The horizontal synchronizing signal and the luminance signal are sequentially transmitted to the horizontal light emitting unit 10 located in the area A of 90 ° on the front surface. Sent. Accordingly, in FIG. 7, 525 horizontal strip-shaped screens are projected on the display screen 2 from the top to the bottom with light of L1 to Ln. That is, n is 525 in this example. Reference numeral 11 'denotes a pixel generated by light emitted from each unit light emitting body 11. As described above, the display screen 2 is irradiated with the R, G, and B lights from the horizontal light emitting unit 10 of the rotating body 1 to form an image. Therefore, the viewer views the display screen 2 from the opposite side.

FIG. 8 is a perspective view of an image reproducing apparatus according to another embodiment of the present invention, FIG. 9 is a side view of the same, and FIG. 10 is a block diagram of the same control system. 8 and 9, a belt 41 is tuned to an upper pulley 40a and a lower pulley 40b. I have. Belt 4
1 is driven by a motor 42 to rotate the pitch in the direction of arrow b.

In FIG. 8, a lead 41 is attached to a belt 41.
3 are wired at a narrow pitch. The lead wire 43 is connected to each unit light emitting body 11 of the horizontal light emitting unit 10. 8 and 9, a first transmission unit 44 and a second transmission unit 45 are provided inside the belt 41 in a direction crossing the belt 41.

In FIG. 10, a first transmitting section 44 is connected to the vertical synchronizing signal generating circuit 31 and a lead 43
A vertical synchronization signal is transmitted to This vertical synchronization signal is input to the motor control unit 34, and the motor 42 is controlled. The second transmitting section 45 is connected to the horizontal synchronizing signal generation circuit 32 and the luminance control circuit 33, and inputs the horizontal synchronizing signal and the luminance signal to the horizontal light emitting section 10.

In FIG. 9, when the horizontal light emitting section 10 moves in the direction of arrow b (FIG. 9) at a position facing the display screen 2, light L1, L2, L3,.
n are sequentially emitted, and an image is displayed on the display screen 2.

[0025]

As described above, according to the present invention, an image reproducing apparatus can be realized with a simple structure.

[Brief description of the drawings]

FIG. 1 is a side view of an image reproducing apparatus.

FIG. 2 is a configuration diagram of an image reproducing apparatus.

FIG. 3 is a configuration diagram of a horizontal light emitting unit of the image reproducing apparatus.

FIG. 4 is a perspective view of a signal transfer section of the image reproducing apparatus.

FIG. 5 is a plan view of a unit light emitting body of a horizontal light emitting unit of the image reproducing apparatus.

FIG. 6 is a block diagram of a control system of the image reproducing apparatus.

FIG. 7 is a front view of a display screen of the image reproducing apparatus.

FIG. 8 is a perspective view of an image reproducing apparatus according to another embodiment.

FIG. 9 is a side view of an image reproducing apparatus according to another embodiment.

FIG. 10 is a block diagram of a control system of an image reproducing apparatus according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotating body 2 Display screen 3 Optical element 7,42 Motor 10 Horizontal light emitting part 11 Unit light emitting body 11R R light emitting element 11B B light emitting element 11G G light emitting element 21,22,43 Lead wire 23 Coil 24 Fixed part 25 Electrode 30 Antenna 31 Vertical synchronization signal generation circuit 32 Horizontal synchronization signal generation circuit 33 Brightness control circuit 40a, 40b Pulley 41 Belt 44 First transmission unit 45 Second transmission unit

Claims (5)

[Claims] 1. A horizontal light-emitting section comprising a plurality of unit light-emitting elements each comprising a combination of light-emitting elements of a plurality of colors arranged side by side in a horizontal direction, a rotating body having the horizontal light-emitting section mounted thereon, and rotating the rotating body. A power unit to be driven, and a display screen to which light emitted by the unit light emitters of the horizontal light emitting unit is applied. The power unit is rotated in accordance with a vertical synchronization signal, and the unit light emitting units arranged side by side in the horizontal direction are provided. An image reproducing apparatus characterized in that an image is projected on the display screen by causing a body to emit light according to a horizontal synchronization signal. 2. The image reproducing apparatus according to claim 1, wherein said display screen comprises a translucent light diffusion plate. 3. The rotating body is a cylindrical drum, the horizontal light emitting unit is mounted on the drum, and a unit light emitting unit of the horizontal light emitting unit is disposed between the rotating body and the display screen. 3. The image reproducing apparatus according to claim 1, further comprising an optical element for converting the emitted light into parallel light. 4. The image reproducing apparatus according to claim 1, wherein the rotating body is a belt rotating along a pulley, and the horizontal light emitting unit is mounted in a direction crossing the belt. apparatus. 5. The image reproducing apparatus according to claim 1, wherein the plurality of colors are R, G, and B.