KR100827624B1 - Laser projection display apparatus for glass type monitor - Google Patents

Abstract

The present invention relates to a laser projection display apparatus for a spectacle type monitor, comprising: a signal converter converting input data into an image signal of an image quality to be displayed, and outputting an image signal that is an output signal of the signal converter; And a video signal separation unit for separating the vertical synchronization signal, a laser controller for generating laser control data based on the image data received from the video signal separation unit, and a laser output for outputting laser light based on the laser control data. And a horizontal reflector for adjusting and reflecting the laser light in a horizontal direction, a vertical reflector for adjusting and reflecting the laser light reflected from the horizontal reflector in a vertical direction, and the horizontal based on the horizontal synchronization signal. A horizontal rotation driver for controlling the movement of the reflector and the vertical synchronization A laser projection display apparatus for a spectacle monitor including a vertical rotation driver for controlling movement of the vertical reflector based on an arc, and a diffuser configured to enlarge and project the laser light output through the vertical reflector to an eye of the spectacle monitor user. It is about.

According to the present invention, it is possible to apply integrally to the spectacle type monitor, to easily adjust the size of the screen and the projection distance, and to realize the accurate image quality and the screen adjustment.

 Glasses type monitor, video signal, vertical sync signal, horizontal sync signal, laser, horizontal / vertical rotation drive, reflection, direct projection type, indirect projection type

Description

LASER PROJECTION DISPLAY APPARATUS FOR GLASS TYPE MONITOR}

1 is a view showing an embodiment of the image image generating apparatus used in the spectacle monitor according to the prior art.

2 is a view showing another embodiment of the image image generating apparatus used in the spectacle monitor according to the prior art.

3 is a block diagram of a first embodiment of a laser projection display device for an eyeglass type monitor according to the present invention;

4 is a block diagram of a second embodiment of a laser projection display device for an eyeglass type monitor according to the present invention;

<Description of the symbols for the main parts of the drawings>

112: LCD display 112 ': EL

114: PBS 116: light source

118: case 123: convex lens

126: concave lens 210: signal conversion unit

220: image signal separation unit 230: laser control unit

240: laser output unit 250: horizontal reflector

255: vertical reflector 260: horizontal rotation drive

265: vertical rotation drive unit 270: diffusion unit

280: reflection unit 290: rotation drive unit

The present invention relates to a laser projection display device, and more particularly, can be integrally applied to a spectacle-type monitor, and can easily adjust the size and projection distance of a screen, and can realize an accurate image quality and a laser projection display apparatus for a spectacle-type monitor. It is about.

The spectacle monitor is a monitor device that allows a user to watch an image by wearing like glasses, and may also be referred to as a term such as a head mounted display or a face mounted display.

These glasses type monitors were initially developed for military use and began to be used for military use, but their use is gradually expanded to civilian use due to various factors such as high performance of computer system, miniaturization, development of display devices such as LCD, image and communication technology, etc. It is becoming. In particular, with the development of wearable computers, it is expected that the spread of eyeglass type monitors as personal display devices for wearable computers will increase. Such spectacle monitors are expected to have high utility in augmented reality, particularly when implemented in a see-through form.

1 is a view showing an embodiment of the image image generating apparatus used in the spectacle monitor according to the prior art.

The image image generating apparatus of the eyeglass type monitor according to the related art shown in FIG. 1 shows a case of using a non-luminescent display element such as an LCD.

As shown, the image image generating apparatus according to the related art includes an LCD display 112, a PBS 114, a light source 116, and a case 118.

The LCD display 112 receives an image signal and converts the image signal into an image image for display. A detailed description of the process of receiving an image signal and converting the same into a video image is related to the related art, such as an LCD, and thus a detailed description thereof will be omitted.

The light source 114 emits light. In the general case, the non-emission light emitting display device such as the LCD display 112 is configured to irradiate light from the light source 114 and to display the same, and these details are also related to general technology, and thus detailed descriptions thereof will be omitted.

The polarized beam splitter (PBS) 116 partially transmits the light emitted from the light source 114, partially reflects the light to the LCD display 112, and then partially transmits the light reflected from the surface of the LCD display 112 so that the image relay means ( 123, 126).

The case 118 introduces the light emitted from the light source 114 into the PBS 116 and the image relay means 123 and 126 when the image image reflected from the surface of the LCD display 112 passes through the PBS 116. It is configured to provide.

The image relay means 123 and 126 may include one or more convex lenses 123 that penetrate the PBS 116 and magnify an image image provided through the case 118, and optical transmission means such as an optical fiber. And one or more concave lenses 126 that scale down to exactly correspond (not shown).

2 is a view showing another embodiment of the image image generating apparatus used in the spectacle monitor according to the prior art.

The image image generating apparatus of the eyeglass type monitor according to the prior art shown in FIG. 2 shows a case of using a self-luminous display element such as electroluminescent (EL).

While the embodiment shown in Fig. 1 uses a non-luminescent element, a light source 114 and a PBS 116 are required, whereas the embodiment shown in Fig. 2 is an EL display 212 'which is a self-luminous element. The difference is that the light source 114 and the PBS 116 are not necessary because

However, such a conventional eyeglass type monitor mainly generates a video image through a non-luminescent display device such as an LCD display or a self-luminous display device such as an EL, and transmits the image image by using a transmission means such as an optical fiber and then reflects the image image. It consists of a screen or a lens. Therefore, the conventional glasses type monitor has a disadvantage in that the volume reduction is limited by the LCD or EL configuration for generating the image image, in particular, considering the durability and volume, it is difficult to implement the image image generating device integral to the glasses type monitor. have.

SUMMARY OF THE INVENTION An object of the present invention is to provide a laser projection display apparatus for an eyeglass type monitor which can be integrally applied to an eyeglass type monitor, which is easy to adjust the size and projection distance of the screen, and which can realize accurate image quality and adjust the screen.

In order to achieve the above technical problem, the present invention is a laser projection display device for a glasses-type monitor, the signal conversion unit for converting and outputting the input data to the image signal of the image quality to be displayed, and the image is an output signal of the signal conversion unit An image signal separation unit for separating a signal into image data and a horizontal synchronization signal and a vertical synchronization signal, a laser controller for generating laser control data based on the image data received from the image signal separation unit, and based on the laser control data. A laser output unit for outputting laser light, a horizontal reflector for adjusting and reflecting the laser light in a horizontal direction, a vertical reflector for adjusting and reflecting laser light reflected from the horizontal reflector in a vertical direction, and Controlling the movement of the horizontal reflector based on a horizontal synchronization signal A horizontal rotation driver, a vertical rotation driver controlling the movement of the vertical reflector based on the vertical synchronizing signal, and a diffuser configured to enlarge and project the laser light output through the vertical reflector to the eye of the spectacle monitor user. Provided is a laser projection display device for an eyeglass type monitor.

In addition, the present invention is a laser projection display device for a glasses-type monitor, the signal conversion unit for converting the input data to the image signal of the image quality to be displayed and output, and the image signal that is the output signal of the signal conversion unit horizontal synchronization with the image data An image signal separation unit for separating the signal and the vertical synchronization signal, a laser controller for generating laser control data based on the image data received from the image signal separation unit, and a laser for outputting laser light based on the laser control data An output unit, a reflection unit which adjusts and reflects the laser light in a vertical direction or a horizontal direction, a rotation driver that controls the movement of the reflection unit based on the horizontal synchronization signal or the vertical synchronization signal, and outputs the reflection unit The eye of the eyeglass type monitor being laser light Expanded to provide a laser projection display apparatus for a head-mounted display comprising a projection unit for diffusion.

In the laser projection display device for an eyeglass type monitor according to the present invention, it may further include an incident part for reflecting the laser light output through the diffuser to enter the user's eyes.

In addition, the laser projection display device for a spectacle-type monitor according to the present invention, further comprising an external background image incident part for injecting an external background image, the incident part is a portion of the laser light output through the diffuser and the external background image At the same time it can be incident into the eyes of the user.

In addition, the laser projection display device for a spectacle-type monitor according to the present invention, it may further include a frequency adjusting unit for converging the laser light output through the diffuser in accordance with the user's vision.

In the laser projection display device for a spectacle type monitor according to the present invention, the image signal separation unit, the laser control unit, the horizontal reflector, the vertical reflector, the horizontal rotation driver and the vertical rotation driver use a MEMS process. It can be manufactured in one piece.

In addition, in the laser projection display device for a spectacle type monitor according to the present invention, the image signal separation unit, the laser control unit, the reflection unit and the rotation drive unit may be integrally manufactured using a MEMS process.

Hereinafter, a laser projection display device for an eyeglass type monitor of the present invention will be described in more detail with reference to the accompanying drawings.

3 is a block diagram of a first embodiment of a laser projection display device for an eyeglass type monitor according to the present invention.

Referring to FIG. 3, a laser projection display apparatus for an eyeglass type monitor according to the present invention includes a signal converter 210, an image signal separator 220, a laser controller 230, and a laser output unit 240. And a horizontal reflector 250, a vertical reflector 255, a horizontal rotation driver 260, a vertical rotation driver 265, and a diffuser 270.

The signal converter 210 converts the input data into an image signal of an image quality to be displayed and outputs the converted image signal.

The image signal separator 220 separates the image signal, which is an output signal of the signal converter 210, into image data, a horizontal sync signal, and a vertical sync signal.

The laser controller 230 generates laser control data based on the image data received from the image signal separator 220. That is, the laser used for laser projection is composed of, for example, red, blue, and green laser lights, and the size or projection distance of the screen can be adjusted by turning on / off or adjusting the respective outputs according to an image signal. The laser control data performs such on / off control, power control, and the like.

The laser output unit 240 outputs the laser light based on the laser control data of the laser controller 230. As described above, the laser light may be output by being divided into, for example, red 245a, blue 245b, and green laser light 245c. In addition, the output of each of the red 245a, blue 245b, and green laser light 245c is also adjusted based on the laser control data.

When using the laser light, it is easy to adjust the position of the screen to be provided to the user because it uses the straightness of the laser, and the configuration of the screen has a dot shape, so the image quality is beautiful and the size of the dot There is a peak that can realize a variety of image quality by adjusting.

The horizontal reflector 250 adjusts, for example, the red 245a, the blue 245b, and the green laser light 245c output from the laser output unit 240 in the horizontal direction, respectively. That is, in forming the screen to be incident on the eyes of the user, the desired image shape is formed by reflecting in the horizontal direction in each pixel unit.

The vertical reflector 255 reflects the laser light reflected by the horizontal reflector 250 in the vertical direction.

Meanwhile, the direction adjustment of the horizontal reflector 250 or the vertical reflector 255 is controlled by using a horizontal sync signal and a vertical sync signal that are output signals of the image signal separator 220.

That is, the horizontal rotation driver 260 controls the movement of the horizontal reflector 250 based on the horizontal synchronization signal, and the vertical rotation driver 265 controls the movement of the vertical reflector 255 based on the vertical synchronization signal. .

The diffuser 270 enlarges and projects the laser light output through the vertical reflector 255 into the eye of the user of the spectacle type monitor according to the present invention. The diffuser 270 may be implemented by, for example, a convex lens or a combination of convex lenses.

4 is an exemplary block diagram of a second embodiment of a laser projection display device for an eyeglass type monitor according to the present invention.

Referring to FIG. 4, a laser projection display apparatus for an eyeglass type monitor according to the present invention includes a signal converter 210, an image signal separator 220, a laser controller 230, and a laser output unit 240. And a reflector 280, a rotation driver 290, and a diffuser 270.

Since the configuration of the signal converter 210, the image signal separator 220, the laser controller 230, and the laser output unit 240 is the same as in the embodiment described with reference to FIG. Omit.

The reflector 280 reflects the laser light output from the laser output unit 240 in a vertical direction or a horizontal direction.

The rotation driver 290 controls the movement of the reflector 280 based on the horizontal synchronizing signal or the vertical synchronizing signal.

That is, in the exemplary embodiment described with reference to FIG. 3, the horizontal reflection unit 250, the vertical reflection unit 255, the horizontal rotation driver 260, and the vertical rotation driver 265 are separately provided to provide horizontal reflection. Although the configuration is performed to adjust the horizontal direction through the vertical direction through the vertical reflection, but in the embodiment with reference to Figure 4 there is a difference in simplifying the configuration by performing the horizontal reflection and vertical reflection at the same time .

The diffuser 270 enlarges and projects the laser light output through the reflector 280 to the eye of the spectacle type monitor user.

The embodiment described with reference to FIG. 3 or 4 is a configuration that is applied to an image generated in the laser projection display apparatus, that is, a direct projection type eyeglass monitor in which laser light is directly projected to the user's eye through the diffuser 270.

However, the laser projection display apparatus for the spectacle type monitor according to the present invention can be applied to the indirect projection type spectacle type monitor which projects the image by injecting the reflected light rather than being directly projected to the user's eyes.

That is, after the diffuser 270 of the laser projection display apparatus for the spectacle type monitor described with reference to FIG. 3 or 4, an incident part reflecting the laser light output from the diffuser 270 and entering the user's eye (not shown) If not, it is possible to configure an indirect projection eyeglass type monitor rather than a direct projection type.

In addition, the embodiment described with reference to FIG. 3 or 4 is a see-close type eyeglass monitor in which only an image generated in the laser projection display device, that is, laser light, is transmitted to the user.

However, the laser projection display apparatus for the spectacle-type monitor according to the present invention includes an incident part (not shown) which reflects the laser light output from the diffuser 270 and enters the user's eye, and an external background image which is incident on the outside. It may further include a background image incident part (not shown), in which case the incident part simultaneously enters a part of the laser light output through the diffuser 270 and an external background image of the external background image incident part to the user's eyes at the same time. It is also possible to implement a see-through type indirect projection spectacle type monitor.

In addition, the spectacle-type monitor has a disadvantage in that the image image corresponding to the user's eyesight does not enter the user's eyes. Therefore, the laser projection display apparatus for the spectacle type monitor according to the present invention may further include a frequency adjusting unit (not shown) for converging the laser light output through the diffuser 270 according to the user's vision. Such a frequency adjusting unit converges the laser light output through the diffusion unit 270 to correspond to the user's glasses degree, for example.

In addition, the laser projection display device for a spectacle monitor according to the present invention can be manufactured using a MEMS (Micro Electro Mechanical System) process for miniaturization and light weight.

For example, referring to FIG. 3, the image signal separator 220, the laser controller 230, the horizontal reflector 250, the vertical reflector 255, the horizontal rotation driver 260, and the number The linear rotation drive unit 265 is preferably manufactured integrally using the MEMS process.

4, the image signal separator 220, the laser controller 230, the reflector 280, and the rotation driver 290 may be integrally manufactured using a MEMS process. .

Implementation through such a MEMS process enables an efficient implementation of a laser projection display device for an eyeglass type monitor according to the present invention, in particular in manufacturing cost and small size and light weight.

Although the configuration of the present invention has been described in detail, it is only for illustrating the present invention, and the protection scope of the present invention is not limited thereto, and the protection scope of the present invention is defined through the description of the claims.

As described above, the present invention can be integrally applied to the spectacle-type monitor, and it is possible to easily adjust the screen size and the projection distance, and to realize accurate image quality and to adjust the screen.

Claims (7)

A laser projection display device for eyeglass type monitors, A signal converter which converts the input data into a video signal of a desired quality and outputs the converted video signal; An image signal separation unit for separating the image signal which is an output signal of the signal conversion unit into image data, a horizontal synchronization signal, and a vertical synchronization signal; A laser controller for generating laser control data based on the image data received from the image signal separator; A laser output unit which outputs laser light based on the laser control data; A horizontal reflector for adjusting and reflecting the laser light in a horizontal direction; A vertical reflector reflecting the laser light reflected from the horizontal reflector in a vertical direction; A horizontal rotation driver which controls the movement of the horizontal reflector based on the horizontal synchronization signal; A vertical rotation driver to control the movement of the vertical reflector based on the vertical synchronization signal; Diffusion unit for enlarging and projecting the laser light output through the vertical reflector to the eye of the eyeglass type monitor user Laser projection display device for a spectacle monitor comprising a. A laser projection display device for eyeglass type monitors, A signal converter which converts the input data into a video signal of a desired quality and outputs the converted video signal; An image signal separation unit for separating the image signal which is an output signal of the signal conversion unit into image data, a horizontal synchronization signal, and a vertical synchronization signal; A laser controller for generating laser control data based on the image data received from the image signal separator; A laser output unit which outputs laser light based on the laser control data; A reflector for adjusting and reflecting the laser light in a vertical direction or a horizontal direction; A rotation driver for controlling the movement of the reflector based on the horizontal synchronizing signal or the vertical synchronizing signal; Diffusion unit for enlarging and projecting the laser light output through the reflector to the eye of the eyeglass type monitor user Laser projection display device for a spectacle monitor comprising a. The method according to claim 1 or 2, The incident part reflecting the laser light output through the diffusion part and entering the eyes of the user Laser projection display device for a spectacle type monitor further comprising. The method of claim 3, The apparatus may further include an external background image incidence unit configured to receive an external background image. The incident part is a laser projection display device for a spectacle-type monitor that the incident part of the laser light output through the diffuser and the external background image at the same time to the eye of the user. The method according to claim 1 or 2, And a frequency adjusting unit for converging the laser light output through the diffusion unit according to the user's vision. The method of claim 1, And the image signal separation unit, the laser control unit, the horizontal reflector, the vertical reflector, the horizontal rotation driver, and the vertical rotation driver are integrally manufactured using a MEMS process. The method of claim 2, And the image signal separator, the laser controller, the reflector, and the rotation driver are integrally manufactured using a MEMS process.

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