WO2005012981A1

WO2005012981A1 - 3-d image display unit-use light source device

Info

Publication number: WO2005012981A1
Application number: PCT/JP2003/009672
Authority: WO
Inventors: Seijiro Tomita
Original assignee: Seijiro Tomita
Priority date: 2003-07-30
Filing date: 2003-07-30
Publication date: 2005-02-10
Also published as: JPWO2005012981A1; JP4348337B2; AU2003252344A1

Abstract

A 3-D image display unit-use light source device being high in accuracy and durability and capable of moving the luminous position of a light source in quick response to the positional movement of a viewer. The 3-D image display unit-use light source device (20) which is provided with an image display means (52) for displaying an image using a transmitted light, and which comprises polarizing plates (31, 32) respectively attached to each LED (21) in an LED array (20) arranged with white LEDs (21) to allow the polarizing directions of adjacent polarizing plates to orthogonally cross each other, and an LED control means (24) for controlling LED (21) light emission.

Description

Specification

Light source device for 3D image display device

The present invention relates to a light source device for a three-dimensional image display device, which displays a three-dimensional image to a viewer with a wide viewing angle, and is capable of viewing a three-dimensional image even if the viewer moves left and right or from multiple viewpoints and many people. In particular, the present invention relates to a light source device for a stereoscopic image display device having an image display means for displaying an image with transmitted light.

Technology background

Conventionally, various techniques for visualizing a stereoscopic image have been tried, and a display method relating to a stereoscopic image has been studied and put to practical use in many fields. Here, as a method of displaying a stereoscopic image, there is a method in which a viewer does not wear a device such as special glasses and goggles.

As such a stereoscopic image display device without special glasses or the like, a device called a parallax barrier system or a lenticular system has been proposed.

As a conventional example, the following system has been proposed. As shown in FIG. 8, a right-eye polarization filter section 66a and a left-eye polarization filter section 66b, whose polarization directions are orthogonal to the left and right of the light emitting surface of the planar light source 65, are arranged as shown in FIG. Filter part 6 6 a, 6

Each light passing through 6 b is irradiated as parallel light on the liquid crystal display element 62 by the Fresnel lens 63, and each of the polarizing filters 62 1 and 62 2 provided on both sides of the liquid crystal display element 62 is Linear polarization filters orthogonal to each other for each horizontal line La and Lb

There is disclosed a linearly polarizing filter composed of 6 2 1 and 6 2 2 arranged alternately.

In this conventional example, the linear polarization filter line facing the light source 65 side and the viewer side is set to the orthogonal polarization direction, and the liquid crystal panel 62 of the liquid crystal display element 62 has two polarization filters. A configuration is provided in which image information for the right eye and left eye is alternately displayed for each horizontal line in line with the horizontal lines.

However, the parallax-sparing method and the lenticular method described above limit the stereoscopic viewable range. There is a problem that the image is reversed left and right or that only a planar image can be displayed. In addition, these image display devices can only display a stereoscopic image to a single viewer at a specific position.

It is conceivable to measure the position of the observer in response to such a problem and mechanically move the light source (indicated by arrow A in Fig. 6) in response to this movement. The problem is that the speed is slow, the mechanical moving device is worn out, it is not durable, and it cannot be used in practice.

Furthermore, in the above-described conventional stereoscopic video display device, when an image signal (2D source) for displaying a plane is received, an image is displayed only at every other scanning line, so that an oblique line can be displayed well. There is a problem that there is a possibility that the image is missing or the image of one running line is missing.

The present invention has been made in view of the above situation, and a first object of the present invention is to provide high precision and durability by electronic control, and to quickly respond to a viewer's position movement so that the light emitting position of the light source can be adjusted. An object of the present invention is to provide a light source device for a stereoscopic image display device that can move a light source and display a good image. In the present invention, controlling the movement of the light emitting position of the light source is referred to as lighting control.

A second object of the present invention is to provide a light source that can be turned on and off at a high speed, so that unnecessary afterimages and interference can be removed by turning off the light source during a synchronization signal and a blanking period, and power consumption can be reduced. It is an object of the present invention to provide a light source device for a three-dimensional image display device capable of greatly reducing the amount of light. In the present invention, turning off the light source during the synchronization signal and the blanking period in this way is referred to as blinking control.

Further, a third object of the present invention is to provide a time-division stereoscopic image display device which can eliminate the need for a shutter device provided in a light source, has a simple structure, and has no light transmission loss. An object of the present invention is to provide a light source device for a display device.

Still another object of the present invention is to provide a light source device for a stereoscopic video display device capable of obtaining an image with a wide viewing angle with a limited light source in the stereoscopic video display device.

In this case, a known ultrasonic tracking device for detecting the position of the eye Provided is a light source device for a three-dimensional video display device that can display a three-dimensional image even when the eyes of a viewer move or by using a tracking device or an image recognition and tracking device. That is.

A fifth object of the present invention is to provide a light source device for a stereoscopic image display device that can easily display a 2D source as a two-dimensional image. That is, it is an object of the present invention to provide a light source device for a three-dimensional image display device capable of displaying oblique lines clearly when displaying a planar source and displaying an image without missing scan lines.

Disclosure of the invention

The present invention solves the above problems by the following means.

The invention according to claim 1 is a light source device for a stereoscopic image display device provided with image display means for displaying an image by transmitted light, wherein the light source device is a set of a white light source or an RGB light source. A light source array in which the light sources are arranged in series, a polarizing plate array section in which two types of polarizing plates attached to the light emitting side of each light source and having different polarization directions are arranged with regularity, and each of the above rows And a light source control means for controlling flickering of a white light source or an RGB light source of the light source array.

According to the present invention, the light source can be freely turned on and off under the control of the light source control means, and a polarizing plate having a different polarization direction is regularly attached to the light emitting side of each light source. Since the plate array is provided, it is not necessary to provide a large polarizing plate for splitting the left and right light sources in the stereoscopic image display device. Also, when receiving and displaying a two-dimensional image signal on a three-dimensional image display device, the two-dimensional image signal is transmitted in the same signal system as the three-dimensional image signal, and diagonal lines are clear only by performing a simple light source array lighting process on the receiving side. And a clear planar image without missing scan lines can be displayed.

The invention according to claim 2 is the stereoscopic image display light source device according to claim 1, wherein the image display device is a stereoscopic image display device that displays different images for left and right eyes, A predetermined continuous part of the light source array emits light, and the parts where polarizing plates with different polarization directions are attached are the right-eye image display part and the left-eye image part, respectively. It is characterized by forming an image display section.

According to the present invention, by emitting light in a continuous predetermined range of the light source array, the positions of the left and right image display light-emitting portions can be made substantially the same, so that a clear stereoscopic image can be obtained.

According to a third aspect of the present invention, in the light source device for a three-dimensional image display device according to any one of the first and second aspects, a polarizing plate is disposed at each light source of the light source array. The present invention is characterized in that adjacent polarizing plates are alternately arranged so that the polarizing directions are orthogonal to each other.

According to the present invention, the polarization angles of the polarizing plates are orthogonal to each other, so that the left and right image display lights can be separated well, and crosstalk between the left and right images is reduced.

According to a fourth aspect of the present invention, in the light source device for a three-dimensional image display device according to any one of the first to third aspects, the light source array includes light sources between light sources and / or polarizing plates. A light-blocking member is provided between them.

ADVANTAGE OF THE INVENTION According to this invention, the light from each white light source which displays right and left is isolate | separated, and the cross talk of the right and left image which has a bad influence on image formation decreases.

According to a fifth aspect of the present invention, in the light source device for a three-dimensional image display device according to any one of the first to fourth aspects, the light source arrays are arranged in a plurality of stages in a vertical direction. It is characterized by the following.

ADVANTAGE OF THE INVENTION According to this invention, the density of the light source of a light source array width dimension can be made high, and the light source device for stereoscopic image display apparatuses of high brightness can be obtained.

According to a sixth aspect of the present invention, in the light source device for a three-dimensional image display device according to the fifth aspect, the polarization directions of the polarizing plates adjacent above and below the at least two light source arrays are arranged. It is characterized by being provided so as to be orthogonal.

According to the present invention, since the light source that is turned on for each eye when the light source array in the predetermined range is turned on is continuous in a stepping-stone manner in the upper and lower arrays, uniform light irradiation can be performed.

The present invention described in claim 7 is directed to any one of claims 1 to 6 In the light source device for a three-dimensional image display device described above, the light source control means controls lighting of a right-eye image display unit and a left-eye image display unit of the light source array. According to the present invention, by controlling the light emission of the right-eye image display portion and the left-eye image display portion of the light source array by the light source control means, it is possible to control the display of the stereoscopic video with a high degree of freedom.

The present invention described in claim 8 is a light source device for a three-dimensional image display device according to any one of claims 1 to 7, wherein the light source control means is arranged in accordance with a distance between the viewer and the display device. 3. The light source control unit according to claim 2, wherein a distance between a right-eye image display portion, a left-eye image display portion, and a lighting portion of the light source array is changed.

According to the present invention, it is possible to quickly move the light emission positions of the right-eye image display unit and the left-eye image display unit to positions corresponding to the position of the viewer based on the position of the viewer. At this time, since no mechanical operation is involved, high accuracy and high durability can be obtained.

The present invention described in claim 9 is a light source device for a stereoscopic image display device according to any one of claims 1 to 8, wherein a position of a viewer with respect to the stereoscopic image display device is measured, and the position is measured as a position signal. It is provided with a position determining means for outputting, and the light source control means controls lighting of the white light source or the RGB light source based on the position information so as to maintain an image observed by a viewer.

According to the present invention, it is possible to display an appropriate stereoscopic image to viewers at a plurality of different positions.

According to a tenth aspect of the present invention, in the light source device for a three-dimensional image display device according to any one of the first to ninth aspects, a controller operated by a viewer is provided. The white light source or the RGB light source is controlled to blink based on operation information of the controller so as to change an observed image of a viewer.

According to the present invention, the light emitting positions of the right-eye image display unit and the left-eye image display unit can be moved to a desired position of the viewer at high speed by the viewer's controller operation. At this time, since no mechanical operation is involved, it is possible to achieve high accuracy and high durability. The present invention described in claim 11 is a light source device for a stereoscopic video display device according to any one of claims 1 to 10, wherein the stereoscopic display device has a number of viewers, and The light source control means based on the position information so as to maintain the observed image of each observer based on the position information. The white light source or the RGB light source is controlled to blink.

The present invention described in claim 12 is a light source device for a stereoscopic image display device according to any one of claims 1 to 11, wherein a right-eye image display portion and a left-eye image of a light source array are provided. It is characterized in that the display section and the display section are controlled to blink.

ADVANTAGE OF THE INVENTION According to this invention, in the three-dimensional image display apparatus which displays a right-and-left image by time sharing, the shutter apparatus provided in a light source can be made unnecessary, a structure can be simplified and light transmission loss does not generate | occur | produce.

The invention according to claim 13 is the invention according to claim 1, wherein the light source is an LED.

According to the present invention, a white LED or an RGB LED, which consumes less power and has a fast on / off switching speed, is used as a light source, so that power consumption can be reduced and image responsiveness can be improved. It can be good. The present invention described in claim 14 is the invention according to claim 1, wherein the light source is EL.

According to the present invention, since EL with low power consumption is used as the light source, the power consumption of the entire device can be reduced.

The present invention described in claim 15 is a light source device for a stereoscopic image display device according to any one of claims 1 to 14, wherein each light source element of the light source device has a light diffusion lens. Is provided.

According to the present invention, the emitted light from each light source element is diffused by the diffusion lens, The light from the light source device enters the image display device without being lost, and the image can be displayed as a beautiful image.

The present invention described in claim 16 is the light source device for a stereoscopic image display device according to any one of claims 1 to 15, wherein the light source array is located at a specific position where a viewer is located. Is formed in an arc shape with the center as the center.

According to the present invention, when a 2D image is displayed on a stereoscopic video display device, light is emitted from a light source device toward a viewer, so that the viewing angle of the stereoscopic video display device can be widened.

The present invention described in claim 17 is a light source device for a three-dimensional image display device according to any one of claims 1 to 16, comprising: a television, a game machine, a personal computer, and a mobile phone. , Or a three-dimensional or two-dimensional image display device of a portable terminal device.

ADVANTAGE OF THE INVENTION According to this invention, in addition to being able to stereoscopically view the screen of a large-screen television, game machine, or personal computer, a small-sized device such as a mobile phone or a mobile terminal in which the viewer's line of sight moves with respect to the screen. In addition to being able to stereoscopically view this screen, it can also be used as a flat image display that requires a wide viewing angle.

Brief Description of Drawings

FIG. 1 is a diagram showing an image display device using a light source device for a stereoscopic video display device according to a first embodiment of the present invention.

FIG. 2 is an enlarged view showing a light source device for a three-dimensional image display device according to the first embodiment of the present invention.

FIG. 3 is a diagram showing an image display device using the light source device for a stereoscopic video display device according to the first embodiment of the present invention.

FIG. 4 is a timing chart showing a lighting state of the light source device for a three-dimensional image display device according to the first embodiment of the present invention.

FIG. 5 is a light source device for a stereoscopic image display device according to the first embodiment of the present invention.

FIG. 3 is a diagram illustrating a case where a 2D image is displayed. FIG. 6 is a timing chart showing a lighting state of the light source device for a three-dimensional image display device in the case shown in FIG.

FIG. 7 is a diagram showing an image display device using the light source device for a stereoscopic video display device according to the second embodiment of the present invention.

FIG. 8 is a diagram showing an image display device using the light source device for a stereoscopic video display device according to the third embodiment of the present invention.

FIG. 9 is a diagram illustrating an example of a conventional stereoscopic video display device.

BEST MODE FOR CARRYING OUT THE INVENTION

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

1 to 8 show an embodiment of the present invention. 1 to 6 are views showing a first embodiment of the present invention, and FIG. 7 is a view showing a second embodiment. FIG. 8 is a diagram showing a third embodiment.

In the following embodiments, the image display device is a stereoscopic video display device.

Further, in this embodiment, an image display device having a structure basically similar to that of the image display device shown in the conventional example 3 can be adopted. In this case, the light source device 20 for a stereoscopic image display device according to the present invention is used as a light source, and the Fresnel lens 63 irradiates the liquid crystal display element 62 as parallel light.

(First embodiment).

In the present embodiment, as shown in FIG. 1 to FIG. 3, the LED array, 20 which is the light source array of the light source device 10 for the stereoscopic video display device, has many white LEDs as the light source.

A large number of D 21 are formed in a row on the forming base 22, and each white LED 21 has a partition wall 23 as a light shielding member formed on four sides surrounding the white LED 21. A polarizing plate 3 is provided on the exit side of the partition wall 22 on which the white LEDs 21 are arranged.

1, 32 are provided. These polarizers 3 1 and 3 2 are used for each white color of LED array 20.

They are arranged with polarization directions orthogonal to each other in a row of LED 21. Around the polarizers 31 and 32, a wall 33 as a light shielding member is formed extending from the partition wall.

LED array 20 is turned on by LED control means 24 as light source control means And flashing control. Note that reference numeral 55 in FIG. 1 indicates position determination means for measuring the position of the viewer 70. The position determining means 25 determines the position of the viewer 70 by using a known position detecting means such as infrared rays or ultrasonic waves, and notifies the LED controlling means 24 of the position of the viewer 70. .

In the present embodiment, the LED control means 24 individually controls the white LED 21 of the LED array 20 to light and blink at high speed. In FIGS. 1 and 3, the emitting LED 21A is indicated by “拿”, and the emitting LED 21B is indicated by “〇” (the same applies hereinafter).

Therefore, during the synchronizing signal of the image display means 52 and the blanking period, by performing the blinking control of turning off the white LED 1, unnecessary afterimages and interference can be removed, and the power consumption can be reduced. In addition to this, it is possible to obtain an image with a wide viewing angle with a limited light source by using a small number of LEDs in a flat image display device and using a Fresnel lens.

Further, according to the present embodiment, since the white LEDs 21 are separated by the shields 23, and the walls 33 are disposed between the polarizing plates 31 and 32, the left and right sides are separated. Since the interference between the light of the LED 21 that displays is reduced, the crosstalk of the left and right images that adversely affects the stereoscopic image is reduced.

First, the case where the viewer 70 is a human will be described. In this case, as shown in FIG. 1, the position of 70 is determined by the above-described position determining means, and the LED 21 of the LED array at a predetermined location 26 emits light, and a stereoscopic image is displayed to the viewer 70. I do. When the viewer is at the designated viewing position at the center of each LED array 51, there is no need to provide the position determining means 25.

If a controller that can be operated by the viewer is installed instead of the position determining means, or in addition to the position determining means, the image can be freely controlled by the viewer's operation. Further, in this example, the light emitting portion of the LED serving as a light source for the left and right images can be separated according to the distance of the viewer 70 from the display device, and the image can be displayed with an appropriate stereoscopic degree.

Further, when the display white LED 21 at a predetermined location 26 of the LED array 20 is simultaneously turned on, both images supplied to the image display means as 2D images are viewed by the viewer. At 0, the image is displayed as a planar image, and the amount of light is doubled, so that a brighter image can be displayed. Also, when all the LEDs arranged in the LED array are turned on, the display device can be made bright and the viewing angle can be widened.

Next, the case where the number of viewers is plural or the number of viewers moves is described. In this case, as shown in FIG. 3, the position determination means 25 measures the positions of the viewers 70, 71, and 73 (the distance from the image display device and the position in the lateral direction). Based on this position measurement result, the LED control means blinks and lights up the LED at the optimum location 27, 28, 29. Figure 4 shows this lighting state.

In this way, the LED control means sequentially repeats LED lighting for the left viewer, LED lighting for the central viewer, and LED lighting for the left viewer. Therefore, each viewer only sees the image that has been illuminated away and does not see the images of others. When the viewer moves, the LED in the LED array corresponding to the detected position of the viewer is lit.

In addition, as shown in a range 57 in FIG. 1, if a light diffusion lens 58 is attached to the LED, the light emitted from each ED 21 is diffused by the diffusion lens 58. Therefore, the light from the light source device enters the image display device without any loss, and the image can be displayed as a beautiful one.

Also, when displaying 2D images, by controlling the lighting of all the LEDs for both the left and right, it is possible to display high-resolution 2D images with a wide viewing angle in all bright images. .

Further, as shown in FIG. 2 (C), when the light source array 20A is formed in an arc shape centered on a specific position where the viewer 70 is located, a 2D image is displayed on the stereoscopic image display device. At this time, light is emitted from the light source device toward the viewer, and the viewing angle of the stereoscopic image display device can be widened.

(Second embodiment)

In the present embodiment, as shown in FIG.

The ED array 40 has two stages of an upper part 40 U and a lower part 40 D, and the polarizing plates 41, 42 provided on the white LEDs 41 of the upper part 40 U and the lower part 40 D. Align the top and bottom That is what we do. According to this example, the light amount is doubled, and a brighter image can be displayed. In this case as well, when displaying a stereoscopic video, the lighting of the LED may be controlled as indicated by the range indicated by 51 in the figure. When displaying a 2D image, all the LEDs 21 in the range indicated by 52 in FIG. 7 need only be turned on.

(Third embodiment)

In the present embodiment, as shown in FIG. 8, the LED array 45 of the light source device 45 for the stereoscopic image display device is composed of an upper portion 45 U and a lower portion 45 D in two stages. The polarization directions of the polarizing plates 46 and 47 provided in the white LEDs 46 of the lower part 45 D of the U and the lower part 45 are set to be orthogonal at the top and bottom.

According to this example, when the LED array in a predetermined range is turned on, the LEDs to be turned on for each eye are continuous in a stepping-stone shape in the upper and lower arrays, so that uniform light irradiation can be performed. In this case as well, when displaying a stereoscopic video, the lighting of the LED may be controlled as indicated by the range 53 in the figure. When displaying a 2D image, all LEDs 21 in the range indicated by 54 in FIG.

The use of the three-dimensional image display device according to the present invention is not particularly limited. For example, the three-dimensional image display device may be used for a display unit of a television, a game machine, a personal computer, a mobile phone, or a mobile terminal. Can be.

Further, in the present embodiment, the LED is described as an example of the light source constituting the light source array, but the light source may be an EL element or the like in addition to the LED.

In addition, although the case where a white light source is used is shown, it is also possible to emit white light as a whole by combining the RGB light sources.

Further, in the above-described second and third embodiments, the LED array is described as having two stages, but in this case, three or more stages may be provided.

The stereoscopic video display device according to the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the spirit of the present invention.

Industrial applicability The invention according to claim 1 is a light source device for a stereoscopic image display device provided with image display means for displaying an image by transmitted light, wherein the light source device is a set of a white light source or an RGB light source. A light source array in which the light sources are arranged in series, a polarizing plate array section in which two types of polarizing plates attached to the light emitting side of each light source and having different polarization directions are arranged with regularity, and each of the above rows And a light source control means for controlling flickering of a white light source or an RGB light source of the light source array.

According to the present invention, the light source can be freely turned on and off under the control of the light source control means, and a polarizing plate having a different polarization direction is regularly attached to the light emitting side of each light source. Since the plate array is provided, it is not necessary to provide a large polarizing plate for splitting the left and right light sources in the stereoscopic image display device. In addition, when a 3D image display device receives and displays a 2D image signal, the 2D image signal is transmitted using a 3D image signal system, and diagonal lines are clearly displayed only by performing simple light source array lighting processing on the receiving side. At the same time, it is possible to display a clear two-dimensional image without missing scan lines.

The invention according to claim 2 is the stereoscopic image display device light source device according to claim 1, wherein the image display device is a stereoscopic image display device that displays different images for left and right eyes, In the light source array, predetermined continuous portions emit light, and portions where polarizing plates of different polarization directions are attached form a right-eye image display portion and a left-eye image display portion, respectively.

According to the present invention, since the polarization angles of the polarizing plates are orthogonal to each other, the left and right image display light can be satisfactorily separated, and the crosstalk of the right and left images is reduced. According to a fourth aspect of the present invention, in the light source device for a three-dimensional image display device according to any one of the first to third aspects, there is provided the light source array between the light sources or the light source array or each of the polarizing plates. A light-blocking member is provided between them.

According to the present invention, when the light source array in the predetermined range is turned on, the light source that is turned on for each eye is continuous in a stepping-stone manner in the upper and lower arrays, so that uniform light irradiation can be performed.

According to a seventh aspect of the present invention, in the light source device for a three-dimensional image display device according to any one of the first to sixth aspects, the light source control unit includes a right-eye image display unit of the light source array. And lighting control of the left-eye image display unit. According to the present invention, by controlling the light emission of the right-eye image display unit and the left-eye image display unit of the light source array by the light source control unit, the display control of the stereoscopic video can be performed with a high degree of freedom.

The present invention described in claim 8 is a light source device for a three-dimensional image display device according to any one of claims 1 to 7, wherein the light source control means is arranged in accordance with a distance between the viewer and the display device. A light source control means for changing an interval between a right-eye image display portion, a left-eye image display portion, and a lighted portion of the light source array.

According to the present invention, the right-eye image display unit and the left-eye image table are displayed based on the position of the viewer. The light-emitting position of the indicating part can be moved to a position corresponding to the position of the viewer at a high speed. At this time, since no mechanical operation is involved, high accuracy and high durability can be obtained.

According to a tenth aspect of the present invention, in the light source device for a three-dimensional image display device according to any one of the first to ninth aspects, a controller operated by a viewer is provided. According to the present invention, the white light source or the RGB light source is controlled to blink based on operation information of the controller so as to change an observed image of a viewer.

According to the present invention, the light emission position of the right-eye image display unit and the left-eye image display unit can be moved to a desired position of the viewer at a high speed by a viewer's controller operation. Since it does not involve dynamic operation, it can be highly accurate and have high durability. The present invention described in claim 11 is a light source device for a stereoscopic video display device according to any one of claims 1 to 10, wherein the stereoscopic display device has a number of viewers, and The light source control means based on the position information so as to maintain the observed image of each observer based on the position information. The white light source or the RGB light source is controlled to blink.

The present invention described in claim 12 is a light source device for a stereoscopic video display device according to any one of claims 1 to 11, wherein the right-eye image display of the light source array is performed. And a flashing control of the image display unit and the image display unit for the left eye.

According to the present invention, a white LED or an RGB LED having low power consumption and a high on / off switching speed is used as a light source, so that power consumption can be reduced and image responsiveness is improved. It can be.

The present invention described in claim 14 is the invention according to claim 1, wherein the light source is EL.

According to the present invention, since EL with low power consumption is used as a light source, power consumption can be reduced.

According to the present invention, since the light emitted from each light source element is diffused by the diffusion lens, the light from the light source device enters the image display device without being lost, and the image can be displayed as a beautiful image. .

The present invention described in claim 16 is the light source device for a stereoscopic image display device according to any one of claims 1 to 15, wherein the light source array is located at a specific position where a viewer is located. It is characterized by being formed in an arc shape centered on

The present invention described in claim 17 is a light source device for a three-dimensional image display device according to any one of claims 1 to 16, comprising: It is characterized by being used for a three-dimensional or two-dimensional image display device of a sonal computer, a mobile phone, or a mobile terminal device.

According to the present invention, a large-screen television, game machine, or personal computer screen can be stereoscopically viewed, and a small device such as a mobile phone or a mobile terminal, in which a viewer's line of sight moves and is small relative to the screen. In addition to being able to view the screen stereoscopically, it can also be used as a flat image display that requires a wide viewing angle.

Claims

The scope of the claims

1. A light source device for a three-dimensional image display device having an image display means for displaying an image with transmitted light,

The light source device includes: a light source array in which a white light source or a light source of a set of RGB light sources is arranged in series;

A polarizing plate array section, which is provided on the light emitting side of each light source and has two types of polarizing plates having different polarization directions arranged in a regular manner;

Light source control means for controlling the flickering of the white light source or the RGB light source of the light source array in each of the rows, and a light source device for a stereoscopic image display device.

2. The image display device is a stereoscopic image display device that displays different images for the left and right eyes, and a predetermined continuous portion of the light source array emits light, and a portion where polarizing plates having different polarization directions are attached. 2. The light source device for a stereoscopic image display device according to claim 1, wherein each of the light source devices forms a right-eye image display portion and a left-eye image display portion.

3. A polarizing plate is arranged at each light emitting source of the light source array, and the polarizing plates are arranged alternately so that the polarization directions of adjacent polarizing plates are orthogonal to each other. A light source device for a three-dimensional image display device according to any one of the above.

4. A light-shielding member according to any one of claims 1 to 3, wherein a light-blocking member is provided between each light source and / or each polarizing plate of the light source array. Light source device for video display device.

5. The light source device for a three-dimensional image display device according to any one of claims 1 to 4, wherein the light source arrays are arranged in at least two stages vertically.

6. The light source for a stereoscopic image display device according to claim 5, wherein the polarizing directions of the polarizing plates adjacent above and below the light source array arranged in at least two stages are orthogonal to each other. apparatus.

7. The stereoscopic image according to any one of claims 1 to 6, wherein the light source control means controls lighting of a right-eye image display portion and a left-eye image display portion of the light source array. Light source device for display device.

8. The light source control means includes light source control means for changing an interval between a right-eye image display portion, a left-eye image display portion, and a lighting portion of the light source array according to a distance of a viewer to the display device. The light source device for a three-dimensional image display device according to any one of claims 1 to 7.

9. The image display device includes a position determination unit that measures the position of the viewer with respect to the stereoscopic video display device and outputs the measured position as a position signal, and the light source control unit determines an image of the viewer based on the position information 9. The light source device for a three-dimensional image display device according to claim 1, wherein lighting control of the white light source or the RGB light source is performed so as to maintain the light source.

10. The image display device includes a controller operated by a viewer, and the light source control means blinks the white light source or the RGB light source so as to change a viewer's observation image based on operation information of the controller. The light source device for a stereoscopic image display device according to any one of claims 1 to 9, wherein the light source device is controlled.

11. The image display device includes a position determination unit that measures the number of viewers and the position of each viewer with respect to the image display device and outputs the measured position as a position signal, and the light source control unit determines the position based on the position information. The stereoscopic video display according to any one of claims 1 to 10, wherein the white light source or the RGB light source is controlled to blink so as to maintain an observation image of each viewer. apparatus.

12. The stereoscopic video display device according to any one of claims 1 to 11, wherein the right-eye image display portion and the left-eye image display portion of the light source array are controlled to blink. Light source device.

13. The light source device for a stereoscopic image display device according to claim 1, wherein the light source is an LED.

14. The light source device for a stereoscopic image display device according to any one of claims 1 to 12, wherein the light source is an EL element.

15. The stereoscopic image display device according to any one of claims 1 to 14, wherein each light source element of the light source device is provided with a lens for diffusing light. Light source device.

16. The stereoscopic image according to any one of claims 1 to 15, wherein the light source array is formed in an arc shape centered on a specific position where a viewer is located. Light source device for display device.

17. Any one of claims 1 to 16 characterized by being used for a stereoscopic or planar image display device of a television, a game machine, a personal computer, a mobile phone, or a portable terminal device. The light source device for a three-dimensional image display device according to crab.