KR101336164B1 - Micro-display apparatus - Google Patents

Abstract

The present invention provides a micro-display apparatus comprising: a polyprism attached to at least one side of a substrate including a linear light source; a motor for rotating the polyprism; a control unit for controlling operation of the motor and controlling emission of an image line through the linear light source; and a finder for displaying the image line as a screen form. According to the present invention, provided is a micro-display apparatus capable of shortening a beam path by integrating a substrate including a linear light source with a polyprism, enabling miniaturization, reducing weight, realizing full color, and improving resolution by emitting an image line from each side of the polyprism. [Reference numerals] (100) Polyprism;(200) Motor;(300) Control unit;(400) Finder;(500) Focusing lens

Description

[0001] MICRO-DISPLAY APPARATUS [0002]

According to the present invention, by integrating a polyprism with a substrate including a linear light source, the beam path can be shortened and reduced in size, light weight can be realized, and full color can be achieved. The present invention relates to a microdisplay device capable of increasing resolution by emitting light.

The rapid development of semiconductor technology has reduced the size of various electronic products such as computers. However, the size of the display device is limited to miniaturization. For example, a display screen is manufactured by forming a matrix with an LED or an LCD device or the like, but in this case, the amount of information is very small and the resolution is poor in proportion to the size of the display, and thus it cannot be adopted in a small device displaying a graphic or a drawing. There is a problem. Therefore, the LCD display panel is mainly used for large display devices, and in some portable display devices or head mounted visual displays (HMD), for military purposes.

In order to remedy these shortcomings, LLA (Line LED Array) or SLA (Scanned Linear Array) method has been proposed as a small display device.

Such a display method generates an image line by an optical display element such as an LED (Light Emitting Diode) element, enlarges the generated image line to a predetermined size, and transmits the image line to a mirror, and then mirrors the image by a predetermined actuator. Mechanically vibrate to scan and display the image.

The configuration of the conventional LLA apparatus can be referred to, for example, Korean Patent Registration No. 10-0294052.

1 is an exemplary configuration diagram of an LLA apparatus according to the prior art.

Referring to FIG. 1, the LLA apparatus includes an LED array unit 10, an enlarged spherical lens 20, a mirror 30, a vibration controller 40, and a finder 50.

The LED array unit 10 emits an optical signal through the LED bar 1 and the emitted optical signal is enlarged by the enlarged spherical lens 20. [ The magnified optical signal is raster-scanned through the mirror 30, which vibrates under the control of the vibration control unit 40, so that a virtual image is formed through the finder 50. [ That is, when the image emitted by the LED bar 1 and enlarged by the enlarged spherical lens 20 reaches the mirror 30, the mirror 30 vibrates to form a frame.

The LLA device described above can be applied to a portable display device or a head-mounted display device (HMD).

However, the LLA device described above has a disadvantage in that it is difficult to reduce the volume of the entire LLA device to a predetermined level or less by using the enlarged spherical lens 20. In addition, in particular, since the beam path between the LED array unit 10 and the mirror 30 is required for a predetermined length or more, there is a disadvantage in that miniaturization and weight reduction are difficult.

In addition, the LED array unit 10 basically uses one LED bar (1). However, in order to realize full color, at least three LED bars 1 of R, G, and B should be used. In this case, since the volume of the LED array unit 10 is increased, it is difficult to miniaturize the LED array unit 10. There are also disadvantages.

1. Korean Patent Registration No. 10-0294052

An object of the present invention is to reduce the beam path by integrating a polyprism with a substrate including a linear light source, to be miniaturized and lightweight, to realize full color, and to emit an image line from each side of the polyprism. The present invention provides a microdisplay device capable of increasing resolution.

In order to achieve the above technical problem, the present invention is a substrate comprising a linear light source is attached to at least one side of a prism; A motor for rotating the polyprism; A control unit controlling an operation of the motor and controlling emission of an image line through the linear light source; And a finder for displaying the image line in the form of a screen.

 In the microdisplay apparatus according to the present invention, the linear light source may be any one of an LED array and a laser diode (LD) array.

In addition, in the micro display device according to the present invention, the linear light source may be any one of an R light source array, a G light source array, and a B light source array.

In addition, in the micro display device according to the present invention, the linear light source may include an R light source array, a G light source array, and a B light source array.

In addition, in the microdisplay device according to the present invention, the substrate may be a sapphire substrate or a glass substrate.

In the microdisplay apparatus according to the present invention, the polyprism is a polyprism having six sides, and includes only an R light source array, a G light source array, and a B light source array on only one side of the six sides of the polyprism. The substrate may be attached.

In addition, in the microdisplay apparatus according to the present invention, the polyprism is a polyprism having six sides, and the substrate may be attached to only three sides not in contact with each other among the six sides of the polyprism.

In the microdisplay apparatus according to the present invention, the substrate including the R light source array is attached to the first side of the three sides, the substrate including the G light source array on the second side of the three sides The substrate including the B light source array may be attached to a third side of the three sides.

In the microdisplay apparatus according to the present invention, the substrate including an R light source array, a G light source array, and a B light source array may be attached to each of the three sides of the polyprism.

In addition, in the microdisplay apparatus according to the present invention, the polyprism is a polyprism having six sides, and the substrates may be attached to all six sides of the polyprism, respectively.

In the microdisplay apparatus according to the present invention, the substrate including the R light source array is attached to a first side of the six sides, and the substrate including the G light source array is attached to a second side of the six sides. A substrate including a B light source array is attached to a third side of the six sides, and a substrate including an R light source array is attached to a fourth side of the six sides, and among the six sides The substrate including the G light source array may be attached to the fifth side, and the substrate including the B light source array may be attached to the sixth side of the six sides.

In the microdisplay apparatus according to the present invention, the substrate including an R light source array, a G light source array, and a B light source array may be attached to each of the six sides of the polyprism.

In addition, in the microdisplay device according to the present invention, the substrate may be attached to the polyprism using glass bonding.

In addition, the microdisplay apparatus according to the present invention may further include a focusing lens for focusing the image line.

According to the present invention, by integrating a polyprism with a substrate including a linear light source, the beam path can be shortened and reduced in size, light weight can be realized, and full color can be achieved. It is possible to provide a micro display device that can increase the.

1 is an exemplary configuration diagram of an LLA device according to the prior art;
2 is an exemplary block diagram of a microdisplay device in accordance with the present invention;
3 shows an exemplary configuration of a microdisplay device according to the present invention.
4 shows an exemplary configuration of a substrate used in the microdisplay device according to the present invention.
5 shows another exemplary configuration of a substrate used in the microdisplay device according to the present invention.
6 shows an example in which a substrate is attached onto a polyprism in a microdisplay device according to the present invention.
7 illustrates another example in which a substrate is attached onto a polyprism in a microdisplay device according to the present invention.

Hereinafter, embodiments of the microdisplay device of the present invention will be described more specifically with reference to the accompanying drawings.

2 is an exemplary block diagram of a microdisplay device in accordance with the present invention.

2, the microdisplay apparatus according to the present invention includes a polyprism 100, a motor 200, a controller 300, and a finder 400. In addition, the microdisplay apparatus according to the present invention may further include a focusing lens 500.

The polyprism 100 has a substrate (150 in FIG. 3) including a linear light source (155 in FIG. 3) attached to at least one side. Polyprism 100 may be, for example, a polygon mirror.

The polyprism 100 may be, but is not limited to, a polyprism having six sides, that is, a polyprism having a hexagonal shape.

The linear light source 155 of FIG. 3 outputs an image line. In more detail, the linear light source 155 of FIG. 3 is implemented in the form of an LED array or an LD array, for example. In particular, when the LD array is used as a linear light source, beam projection to the outside of the finder 400 is possible, and thus it can be used as a simple beam projector.

That is, the linear light source 155 of FIG. 3 includes LEDs or LDs arranged in one row, and under the control of the controller 300, the LEDs or LDs operate to generate and emit image lines.

An R light source array, a G light source array, and a B light source array may be disposed on the substrate 150 of FIG. 3 to implement full color.

Preferably, when there are a plurality of substrates (150 in FIG. 3), the linear light source (155 in FIG. 3) disposed on the substrate (150 in FIG. 3) is any one of an R light source array, a G light source array, and a B light source array. Or an R light source array, a G light source array, and a B light source array.

That is, a linear light source (155 of FIG. 3), which is one of an R light source array, a G light source array, and a B light source array, may be disposed on the substrate (150 of FIG. 3) attached to the polyprism 100, or the R light source array A linear light source 155 of FIG. 3 may be disposed including both the G light source array and the B light source array.

For example, only one of an R light source array, a G light source array, and a B light source array may be disposed on a substrate (150 of FIG. 3) in order to minimize a problem such as wiring between each light source. However, for the efficiency of image line emission, all of the R light source array, the G light source array and the B light source array may be disposed on the substrate (150 in FIG. 3).

On the other hand, it is preferable that the substrate (150 in FIG. 3) is a sapphire substrate or a glass substrate. Bonding of the substrate (150 in FIG. 3) and the polyprism 100 may be performed using, for example, glass bonding.

The motor 200 rotates the polyprism 100. As the motor 200 rotates the polyprism 100, an image line emitted from the linear light source 155 of FIG. 3 may be displayed on the finder 400 in the form of a screen.

The controller 300 controls the operation of the motor 200 and controls the emission of the image line through the linear light source 155 of FIG. 3. The controller 300 scans the image line emitted from the linear light source (155 of FIG. 3) to the finder 400 in the form of a screen according to the rotation of the polyprism 100. To this end, the controller 300 controls light emission from each of the R light source array, the G light source array, and the B light source array constituting the linear light source 155 of FIG. 3.

The finder 400 displays image lines in a screen form. That is, after the image line is emitted and scanned by the rotation of the polyprism 100, the user can see the scanned screen through the finder 400.

The finder 400 may preferably be a lens that focuses an image line emitted from the linear light source 155 of FIG. 3.

However, the finder 400 is not in the form of a lens for focusing or in order to increase the efficiency of focusing, the microdisplay apparatus according to the present invention may further include a focusing lens 500.

Hereinafter, the microdisplay apparatus according to the present invention will be described in detail with reference to the configuration examples.

3 is a view showing an exemplary configuration of a microdisplay device according to the present invention.

3, the polyprism 100 and the finder 400 of the microdisplay device according to the present invention are shown. The illustration of other components is omitted.

Comparing FIG. 3 with FIG. 1, which is a configuration according to the prior art, according to the prior art, the miniaturization of the overall configuration is achieved due to the distance between the substrate, that is, the LED array unit 10, the enlarged spherical lens 20, and the mirror 30. It is difficult and has a disadvantage of long beam path.

However, referring to the configuration of the microdisplay apparatus according to the present invention, the substrate 150 is directly attached to the polyprism 100, and the image line is emitted directly from the linear light source 155 on the substrate 150 so that the finder ( 400). By rotation of the polyprism 100, the image lines emitted from the linear light source 155 are scanned into the finder 400 in the screen behavior.

Therefore, compared with the configuration according to the prior art, it is possible to reduce the size and weight of the overall configuration, and also because the image line is directly scanned from the linear light source 155 to the finder 400, the beam path is shortened.

4 is a view showing an exemplary configuration of a substrate used in the microdisplay device according to the present invention.

Referring to FIG. 4, the substrate 150 includes linear light sources 155a through 155c thereon.

For example, the linear light source 155a is an R light source array. The R light source array is for example an R LED. For example, linear light source 155b is a G light source array. The G light source array is for example G LED. For example, linear light source 155c is a B light source array. The B light source array is for example B LEDs.

In FIG. 4, linear light sources 155a to 155c are arranged in the order of the R light source array, the G light source array, and the B light source array, but the order may be changed.

In addition, the spacing between the R light source array, the G light source array, and the B light source array has been enlarged for explanation, and in actual implementation, the spacing is very narrow.

5 is a view showing another exemplary configuration of a substrate used in the microdisplay device according to the present invention.

The difference from the substrate shown in FIG. 4 is that only the linear light source 155d having one light source array is disposed on the substrate 150.

The linear light source 155d is any one of an R light source array, a G light source array, and a B light source array.

6 is a view showing an example in which the substrate is attached on the polyprism in the microdisplay device according to the present invention.

Referring to FIG. 6, the substrate 150 of the type shown in FIG. 4 is attached only to one side of the polyprism 100 having a hexagonal pillar shape, and the linear light sources 155a to 155c are attached to the substrate 150. Is placed.

6, the substrate 150 having the shape shown in FIG. 4 is attached only to one side of the six sides of the polyprism 100. Therefore, when the polyprism 100 rotates once, only one image line may be scanned into the finder 400.

In order to increase the resolution of the screen scanned by the finder 400, the substrate may be attached to other sides of the polyprism 100.

That is, the substrate 150 of the type shown in FIG. 4 may be attached to all six side surfaces of the polyprism 100. Alternatively, the substrate 150 of the type shown in FIG. 4 may be attached only to three sides that are not adjacent to each other among the six sides of the polyprism 100.

In this case, when the polyprism 100 rotates once, only six or three image lines may be scanned into the finder 400.

7 is a view showing another example in which the substrate is attached on the polyprism in the microdisplay device according to the present invention.

Referring to FIG. 7, the substrate 150 of the type shown in FIG. 5 may be attached to three sides of the six sides of the polyprism 100 having a hexagonal shape that are not adjacent to each other.

That is, the substrate 150 of the type shown in FIG. 5 is attached to the three side surfaces 100a, 100c, and 100e, respectively. Only the linear light source 155d having one light source array is disposed on the substrate 150.

For example, a linear light source 155d, which is an R light source array, is disposed on the side surface 100a, and a linear light source 155d, which is an G light source array is disposed on the side surface 100a, and B is provided on the side surface 100e. The linear light source 155d, which is a light source array, may be disposed.

Alternatively, in order to increase the resolution, the substrate 150 having the shape shown in FIG. 5 may be attached to the six side surfaces 100a to 100f, respectively. In this case, the linear light source 155d which is the R light source array is disposed on the side surface 100a, the linear light source 155d which is the G light source array is disposed on the side surface 100b, and the linear light source that is the B light source array on the side surface 100c. 155d is disposed, a linear light source 155d that is an R light source array is disposed on the side surface 100d, a linear light source 155d that is a G light source array is disposed on the side surface 100e, and a B light source is disposed on the side surface 100f. The linear light sources 155d may be arranged.

The example with reference to FIG. 7 is for illustration only and the arrangement order of the light source array may be changed.

In addition, although described with an example of a hexagonal pillar-shaped polyprism having six sides, for example, an octagonal pillar shape having six sides or a pillar shape having more sides is possible.

In this case, it may be implemented as described in FIG. 6 or 7.

That is, for example, the substrates may be arranged on the sides not in contact with each other, or the substrates may be disposed on all sides, and each substrate may include any or all of an R light source array, a G light source array, and a B light source array. have. When each substrate has any one of an R light source array, a G light source array, and a B light source array, for example, each side may include a substrate having any one of an R light source array, a G light source array, and a B light source array in order. Can be.

In particular, when using each side of the polyprism 100, the resolution can be increased without increasing the rotational speed of the motor.

Although the present invention has been described in detail, it should be understood that the present invention is not limited thereto. Those skilled in the art will appreciate that various modifications may be made without departing from the essential characteristics of the present invention. Will be possible.

Therefore, the embodiments disclosed in the present specification are intended to illustrate rather than limit the present invention, and the scope and spirit of the present invention are not limited by these embodiments. The scope of the present invention should be construed according to the following claims, and all the techniques within the scope of equivalents should be construed as being included in the scope of the present invention.

According to the present invention, by integrating a polyprism with a substrate including a linear light source, the beam path can be shortened and reduced in size, light weight can be realized, and full color can be achieved. It is possible to provide a micro display device that can increase the. Therefore, the present invention can be applied to a portable device such as a mobile communication terminal.

In addition, when the LD array is used as a linear light source, it can be projected to the outside and can be used as a simple beam projector.

1: LED bar 10: LED array unit
20: magnified spherical lens 30: mirror
40: vibration control unit 50: finder
100: polyprism 150: substrate
155: linear light source 200: motor
300: control unit 400: finder
500: focusing lens

Claims (13)

A poly prism having a substrate including a linear light source attached to at least one side thereof;
A motor for rotating the polyprism;
A control unit controlling an operation of the motor and controlling emission of an image line through the linear light source; And
A finder for displaying the image line in a screen form;
Lt; / RTI > The method of claim 1,
The linear light source is any one of a light emitting diode (LED) array and an array of laser diode (LD). The microdisplay apparatus of claim 1, wherein the linear light source is any one of an R light source array, a G light source array, and a B light source array. The microdisplay apparatus of claim 1, wherein the linear light source comprises an R light source array, a G light source array, and a B light source array. The method of claim 1,
Wherein said substrate is a sapphire substrate or a glass substrate. The method of claim 1,
The polyprism is a polyprism having six sides,
And wherein said substrate comprising an R light source array, a G light source array, and a B light source array is attached to only one of six sides of said polyprism. The method of claim 1,
The polyprism is a polyprism having six sides,
And the substrate is attached to only three of the six sides of the polyprism that are not in contact with each other. The method of claim 7, wherein
A substrate including an R light source array is attached to a first side of the three sides, a substrate including a G light source array is attached to a second side of the three sides, and a third side of the three sides And a substrate comprising a B light source array attached thereto. The method of claim 7, wherein
And wherein said substrate comprising an R light source array, a G light source array, and a B light source array is attached to each of said three sides of said polyprism. The method of claim 1,
The polyprism is a polyprism having six sides,
And the substrate is attached to all six sides of the polyprism, respectively. The method of claim 10,
The substrate including the R light source array is attached to a first side of the six sides, and the substrate including the G light source array is attached to a second side of the six sides, and a third side of the six sides. A substrate including an array of B light sources is attached to the fourth side of the six sides, and a substrate including an R light source array is attached to the fourth side of the six sides, and a G array of light sources on the fifth side of the six sides. A substrate is attached, and the sixth side of the six sides is attached to the substrate comprising a B light source array. The method of claim 10,
And each substrate comprising an R light source array, a G light source array, and a B light source array attached to each of the six sides of the polyprism. The method of claim 1,
A focusing lens focusing the image line;
The micro-display device further comprising:

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