TWI832559B - Stereoscopic image display system, stereoscopic display device, and filter glasses - Google Patents

Abstract

A stereoscopic image display system includes a stereoscopic display device and filter glasses. The stereoscopic display device includes a display device, a first light source, a second light source, and a color filter. The stereoscopic display device provides a first frame and a second frame to a left eye and a right eye of a user, respectively. The first light source and the second light source respectively provide light beams with a first wavelength distribution and a second wavelength distribution to the display device to form the first frame and the second frame. The color filter allows the light of the first wavelength distribution and the second wavelength distribution to pass through. The first wavelength distribution is different from the second wavelength distribution and each of the first wavelength distribution and the second wavelength distribution includes a red band, a green band and a blue band. The filter glasses include a first filter unit and a second filter unit, the first filter unit and the second filter unit are respectively suitable for passing light beams with the first wavelength distribution and the second wavelength distribution. A stereoscopic image device and filter glasses are also provided.

Description

Stereoscopic image display system, stereoscopic display device and filter glasses

The present invention relates to an image display system, and in particular, to a stereoscopic image display system including a stereoscopic display device and filter glasses.

Among the existing stereoscopic image (3D) imaging technologies, one method uses time multiplexing to provide the first frame and the second frame with different viewing angles to different eyes of the user within the reaction time of the human eye. Without the human eye noticing, the left and right eyes receive images from different angles, thereby producing a three-dimensional image.

In the prior art, a method of using a stereoscopic display with active stereoscopic glasses is used to achieve the above effect. The stereoscopic display emits images of three different colors (for example: red (R), green (G) and blue (B)) with parallax angles at three different points in time, and the active stereoscopic glasses simultaneously correspond to the three different At this point in time, the left and right eyes are controlled to pass images with parallax angles of R, G, and B colors. However, since the stereoscopic display emits images of three colors respectively, the active stereoscopic glasses only allow monochromatic light to pass through at a single point in time, which greatly reduces the resolution and brightness of the stereoscopic image. Moreover, the active stereoscopic glasses need to operate simultaneously with the stereoscopic display, which also It is difficult to reduce the power consumption and price of stereoscopic glasses, and the poor color display effect will also cause strain on the user's eyes.

The invention provides a three-dimensional image display system that can provide good image quality.

The present invention provides a kind of filter glasses, which does not need to operate synchronously with the display to achieve the purpose of power saving and reduce the burden on the user's eyes.

The present invention provides a three-dimensional image display device that can provide three-dimensional images without reducing resolution.

The three-dimensional image display system of the present invention includes a three-dimensional display device and filter glasses. The three-dimensional display device includes a display device, a color filter, a first light source and a second light source. The three-dimensional display device provides the first frame and the second frame to the user's left eye and right eye respectively. The first light source and the second light source each provide light with a first wavelength distribution and a second wavelength distribution to the display device to form a first frame and a second frame. The color filter is adapted to pass light of the first wavelength distribution and the second wavelength distribution. The first wavelength distribution is different from the second wavelength distribution and each includes red, green and blue color bands. The filter glasses include a first filter unit and a second filter unit, each of which is adapted to pass light of a first wavelength distribution and a second wavelength distribution.

The filter glasses of the present invention include a first filter unit, which is suitable for passing the light beam of a first wavelength distribution and filtering the light beam of other wavelength bands. The first wavelength distribution includes a first red light band, a first green light band and a third a blue light band; the second filter unit is adapted to allow the light beam of the second wavelength distribution to pass through and filter the light beam of the remaining wavelength bands. The second wavelength distribution includes a second red light band, a second green light band and a second blue light band, The first red light band is different from the second red light band, the first green light band is different from the second green light band, and the first blue light band is different from the second blue light band.

The stereoscopic display device of the present invention provides a first frame to the user's left eye and a second frame to the user's right eye, wherein the stereoscopic display device includes a display device that provides a first image of the first frame and provides a second frame. second image. The first light source provides a light beam of a first wavelength distribution to the first image, and the first wavelength distribution includes a first red light band, a first green light band and a first blue light band. The second light source provides a light beam with a second wavelength distribution in the second image, and the second wavelength distribution includes a second red light band, a second green light band, and a second blue light band. The first red light band is different from the second red light band, the first green light band is different from the second green light band, and the first blue light band is different from the second blue light band. The color filter is arranged on the display device, and the color filter is suitable for passing the light beams of the first wavelength distribution and the second wavelength distribution.

Based on the above, in the three-dimensional image display system of the present invention, since the first frame and the second frame provided by the three-dimensional display device of the present invention each include red, green and blue color bands, it can be achieved without sacrificing resolution, chroma and A three-dimensional image is formed based on brightness. Since the first filter unit and the second filter unit of the filter glasses are each adapted to pass the wave band of the first frame and the wave band of the second frame, they do not need to operate synchronously with the timing of the first frame and the second frame. , allowing users to view three-dimensional images through filter glasses. It reduces the design difficulty, power consumption and cost of filter glasses, improves the user's viewing experience and reduces the burden on the eyes.

In order to make the above-mentioned features and advantages of the present invention more obvious and easy to understand, embodiments are given below and described in detail with reference to the accompanying drawings.

As used herein, "about," "approximately," "substantially," or "substantially" includes the stated value and an average within an acceptable range of deviations from a particular value as determined by one of ordinary skill in the art, taking into account that Discuss the measurement and the specific amount of error associated with the measurement (i.e., the limitations of the measurement system). For example, "about" can mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±15%, ±10%, ±5%, for example. Furthermore, the terms "approximately", "approximately", "substantially" or "substantially" used in this article can be used to select a more acceptable deviation range or standard deviation based on the measurement properties, cutting properties or other properties, and can Not one standard deviation applies to all properties.

Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Whenever possible, the same reference numbers are used in the drawings and descriptions to refer to the same or similar parts.

1A is a schematic diagram of the display time of the first frame of a stereoscopic image display system according to the first embodiment of the present invention. 1B is a schematic diagram of the display time of the second frame of a stereoscopic image display system according to the first embodiment of the present invention. Please refer to FIG. 1A and FIG. 1B simultaneously. The stereoscopic display system 1 includes a stereoscopic display device 100 and filter glasses 200 . The stereoscopic display device 100 includes a display device 101, a first light source 110, a second light source 120 and a color filter 130. The filter glasses 200 include a first filter unit 210 and a second filter unit 220.

Specifically, the stereoscopic display device 100 provides the first frame F1 and the second frame F2 respectively corresponding to the left eye L and the right eye R of the user 10 . The display device 101 is used for receiving image signals to provide a first image IMG1 of the first frame F1 and a second display image IMG2 of the second frame F2. The first frame F1 and the second frame F2 are, for example, two display images with different viewing angles. The display device 101 is, for example, a liquid crystal display (LCD), which may include liquid crystal display elements such as a driving substrate, an alignment layer, a liquid crystal layer, and a glass substrate (not shown), but the invention is not limited thereto.

1C is a schematic spectrum diagram of the first wavelength distribution of the first light source and the second wavelength distribution of the second light source of a three-dimensional image display system according to the first embodiment of the present invention. 1D is a schematic diagram of the transmission spectrum of the first filter unit of a three-dimensional image display system according to the first embodiment of the present invention. 1E is a schematic diagram of the transmission spectrum of the second filter unit of a three-dimensional image display system according to the first embodiment of the present invention. Please refer to FIGS. 1A to 1E at the same time. The first light source 110 is used to provide a light beam with a first wavelength distribution λ1 in the first image IMG1. The first wavelength distribution λ1 includes a first red light band R1, a first green light band G1 and a first light beam. One blue light band B1. The second light source 120 is used to provide a light beam with a second wavelength distribution λ2 in the second image IMG2. The second wavelength distribution λ2 includes a second red light band R2, a second green light band G2 and a second blue light band B2, wherein the first red light band The light waveband R1 is different from the second red light waveband R2, the first green light waveband G1 is different from the second green light waveband G2, and the first blue light waveband B1 is different from the second blue light waveband B2. For convenience of presentation, Figure 1D also marks the wavelength range corresponding to the first wavelength distribution λ1 on the horizontal axis of Figure 1D. Similarly, FIG. 1E also marks the wavelength range corresponding to the second wavelength distribution λ2 on the horizontal axis of FIG. 1E .

Please refer to Figure 1C. It is worth mentioning that the wavelength difference Δλ between the first red light band R1 and the second red light band R2, the wavelength difference Δλ between the first green light band G1 and the second green light band G2, and the first The wavelength difference Δλ between the blue light band B1 and the second blue light band B2 is about 5 nanometers to 50 nanometers. In one embodiment, the wavelength difference Δλ is about 30 nanometers. The wavelength difference Δλ here may be the wavelength difference between the peak value of each band and the wavelength corresponding to the peak value. It is worth mentioning that the wavelength difference Δλ should not be too large to prevent the user 10 from detecting red light, green light and blue light with too different wavelength distributions. The wavelength difference Δλ should not be too small to prevent the filter glasses 200 from being unable to fully filter the light beam of the first wavelength distribution λ1 and the light beam of the second wavelength distribution λ2 (please explain later). In this embodiment, the wavelength difference Δλ between the first red light band R1 and the second red light band R2, the first green light band G1 and the second green light band G2, the first blue light band B1 and the second blue light band B2 are all The same, but the present invention is not limited thereto. In other embodiments, the wavelength difference Δλ between the first red light band R1 and the second red light band R2, the first green light band G1 and the second green light band G2, the first blue light band B1 and the second blue light band B2 is also Can be different. In addition, the first light source 110 and the second light source 120 are, for example, light emitting diodes ( LEDs ), sub-millimeter light emitting diodes (mini light emitting diodes, mini LEDs) or other size light emitting diodes. , or use laser diode (Laser Diode, LD). The invention does not limit the type of light source.

For example, FIG. 1F is a schematic spectrum diagram of the first wavelength distribution of the first light source and the second wavelength distribution of the second light source of a three-dimensional image display system according to another embodiment of the present invention. In this embodiment, the first red light band R1 and the second red light band R2 have a red light overlapping range RO, and the first green light band G1 and the second green light band G2 have a green light overlapping range GO and the first blue light band. B1 and the second blue light band B2 have a blue light overlap range BO. The relative spectral intensity value 1 in Figure 1F represents the first red light band R1, the second red light band R2, the first green light band G1, the second green light band G2, the first blue light band B1 and the second blue light band B2. The value of 0.5 represents the peak value of the first red light band R1, the second red light band R2, the first green light band G1, the second green light band G2, the first blue light band B1 and the second blue light band B2. times. The overlapping range peak φR of the red light overlapping range RO is, for example, less than 0.5 times the peak value of the first red light band R1 and less than 0.5 times the peak value of the second red light band R2; the overlapping range peak φR of the green light overlapping range GO is, for example, less than 0.5 times the peak value of the first green light band G1 and less than 0.5 times the peak value of the second green light band G2; the overlap range peak value φR of the blue light overlap range BO is, for example, less than 0.5 times the peak value of the first blue light band B1 and less than the second 0.5 times the peak value of blue light band B2.

It should be noted that in this embodiment, the overlapping range peak value φR of the red light overlapping range RO, the green light overlapping range GO, and the blue light overlapping range BO is all the same as an example, but the invention is not limited thereto. In other embodiments, the overlapping range peak value φR of the red light overlapping range RO, the green light overlapping range GO and the blue light overlapping range BO can all be different, as long as the overlapping range peak value φR is in the above-mentioned color corresponding band (for example, the first red light band R1, the first green light band G1 and the first blue light band B1) can be less than half of the peak value. In other embodiments, the overlapping range peak value φR of the red light overlapping range RO, the green light overlapping range GO, and the blue light overlapping range BO may all be 0. That is, the first red light band R1 and the second red light band R2 may not overlap, the first green light band G1 and the second green light band G2 may not overlap, and the first blue light band B1 and the second blue light band B2 may not overlap. No overlap.

Since the peak value φR of the overlapping range is less than half of the peak value of each wave band, the user 10 can be prevented from detecting the red light, green light and blue light whose wavelength distribution is too different. And the filter glasses 200 can fully filter the light beam of the first red light band R1 or the second red light band R2, the first green light band G1 or the second green light band G2, and the first blue light band B1 or the second blue light band B2. The beam improves the imaging effect of three-dimensional images (please explain later).

The color filter 130 is adapted to pass light of the first wavelength distribution λ1 and the second wavelength distribution λ2. Specifically, the color filter 130 includes a red filter unit, a green filter unit and a blue filter unit (not shown). The red filter unit, the green filter unit and the blue filter unit respectively correspond to the display device. Each sub-pixel on the display device 101 is overlapped, so that the display device 101 generates a color image. The red filter unit is adapted to pass the light beams of the first red light band R1 and the second red light band R2 and filter out the light beams of the remaining wavelength bands. The green filter unit is adapted to pass the light beams of the first green light band G1 and the second green light band G2 and filter out the light beams of other wavelength bands. The blue filter unit is adapted to pass the light beams of the first blue light band B1 and the second blue light band B2 and filter out the light beams of the remaining wavelength bands.

The filter glasses 200 include a first filter unit 210 and a second filter unit 220. The first filter unit 210 is adapted to pass the light beam of the first wavelength distribution λ1 and filter the light beam of the remaining wavelength bands (including filtering the second wavelength The second filter unit 220 is adapted to pass the light beam with the second wavelength distribution λ2 and filter out the light beams in the remaining wavelength bands (including filtering out the light beam with the first wavelength distribution λ1 ).

For example, in FIG. 1D, since the first filter unit 210 has high transmittance for the light beams corresponding to the first red light band R1, the first green light band G1 and the first blue light band B1, the first red light band R1 The light beams of the first green light band G1 and the first blue light band B1 can pass through the first filter unit 210 and can be transmitted to the left eye L of the user 10 . The light beams of the second red light band R2, the second green light band G2 and the second blue light band B2 will be filtered by the first filter unit 210 and cannot be transmitted to the left eye L of the user 10. On the contrary, in FIG. 1E , since the second filter unit 220 has high transmittance for the light beams corresponding to the second red light band R2, the second green light band G2 and the second blue light band B2, the second red light band R2, The light beams of the second green light band G2 and the second blue light band B2 can pass through the second filter unit 220 and be transmitted to the right eye R of the user 10 . The light beams of the first red light band R1, the first green light band G1, and the first blue light band B1 will be filtered by the second filter unit 220 and cannot be transmitted to the right eye R of the user 10. The present invention does not limit the positions of the first filter unit 210 and the second filter unit 220 corresponding to the left eye L and the right eye R. In other embodiments, the first filter unit 210 may be configured corresponding to the right eye R, and the second filter unit 220 may be configured corresponding to the left eye L.

The imaging principle of the stereoscopic image display system 1 of this embodiment will be described below. Please refer to FIG. 1A and FIG. 1D simultaneously. During the display time T1 of the first frame, the display device 101 receives the image signal to provide the first image IMG1. At this time, the first light source 110 is turned on synchronously to provide the light beam with the first wavelength distribution λ1 to the display device 101, so as to provide the first image IMG1 with the light beam to form the first frame F1.

Accordingly, the first frame F1 has the light beam with the first wavelength distribution λ1 and carries the information of the first image IMG1, which passes through the color filter 130 and the first filter unit 210 in sequence, and is transmitted to the user 10 Left eye L. Since the first frame F1 has the light beam with the first wavelength distribution λ1 and is filtered out by the second filter unit 220, the right eye R of the user 10 does not receive the first frame F1. Therefore, at the display time T1 of the first frame, only the left eye L of the user 10 receives the first frame F1.

Please refer to FIG. 1B and FIG. 1E at the same time. After the time difference ΔT, at the display time T2 of the second frame, the display device 101 receives the image signal to provide the second image IMG2. At this time, the first light source 110 is turned off, and the second light source 120 is turned on simultaneously to provide the light beam with the second wavelength distribution λ2 to the display device 101, so as to provide the second image IMG2 with the light beam to form the second frame F2. The time difference ΔT is less than the visual persistence time of the human eye, for example, less than about 50 milliseconds, but the present invention is not limited thereto.

Accordingly, the second frame F2 has the light beam with the second wavelength distribution λ2, and carries the information of the second image IMG2, passes through the color filter 130 and the second filter unit 220 in sequence, and is transmitted to the user 10 Right eye R. Since the second frame F2 has a light beam with the second wavelength distribution λ2, which is filtered out by the first filter unit 210, the left eye L of the user 10 does not receive the second frame F2. Therefore, at the display time T2 of the second frame, only the right eye R of the user 10 receives the second frame F2.

As a result, since the time difference ΔT between the display time T1 of the first frame and the display time T2 of the second frame is smaller than the visual persistence time of the human eye, the user 10 will think that the left eye L and the right eye R correspond to each other at the same time. The first frame F1 and the second frame F2 with different viewing angles are received, whereby the user 10 can observe the stereoscopic image.

Since the filter glasses 200 of this embodiment do not need to operate synchronously with the first light source 110 and the second light source 120, they only need to filter light corresponding to the first wavelength distribution λ1 and the second wavelength distribution λ2. Therefore, the filter glasses 200 can be used with the stereoscopic display device 100 to allow the user 10 to observe stereoscopic images without additionally installing other electronic components. In other words, the filter glasses 200 do not need to be powered on and can be passive filter glasses. Accordingly, the overall power consumption of the stereoscopic image display system 1 can be greatly reduced. In addition, because the filter glasses 200 are passively designed, the design is light and simple, which can reduce the overall weight of the filter glasses 200 and the burden on the eyes, thereby greatly reducing the discomfort of the user 10 when wearing the stereoscopic glasses, so the user 10 is less likely to watch The head can move and rotate arbitrarily during stereoscopic imaging, which is convenient for head tracking (Head Tracking) to produce stereoscopic image content without affecting the viewing quality of stereoscopic images.

Not only that, because the first filter unit 210 and the second filter unit 220 of the filter glasses 200 can each pass the light beams in the red, green, and blue color bands, the filter glasses 200 appear transparent in appearance, unlike ordinary glasses. Glasses are no different. Therefore, the appearance quality of the filter glasses 200 is also improved.

On the other hand, compared with the conventional technology that only provides a display screen of one of the three colors of red, green, and blue in one time sequence, this embodiment provides the first frame F1 regardless of the display time T1 of the first frame. The second frame F2 provided by the display time T2 of the second frame each includes red, green and blue bands. Therefore, good display quality can be provided without sacrificing the resolution of the display device 101 . Moreover, since the first light source 110 and the second light source 120 are lit sequentially, sufficient brightness of the display screen can still be provided.

It is worth mentioning that the stereoscopic display device 100 may also include a light guide plate 140 . The light guide plate 140 has a light-emitting surface 140o and a first side 140s1 and a second side 140s2 adjacent to the light-emitting surface 140o. The first side 140s1 and the second side 140s2 are opposite, and the display device 101 is located on the light-emitting surface 140o and the color filter. Between 130. Furthermore, the first light source 110 of this embodiment provides a light beam with a first wavelength distribution λ1 toward the first side 140s1, and the second light source 120 provides a light beam with a second wavelength distribution λ2 toward the second side 140s2, and through the light exit surface 140o sold out. That is to say, the three-dimensional display device 100 of this embodiment adopts a side-lit backlight design, but the invention is not limited thereto. In other embodiments, the light guide plate 140 may also include a brightness enhancement film and a diffusion film structure, and the first light source 110 and the second light source 120 are disposed on the opposite surface of the light emitting surface 140o. That is to say, the three-dimensional display device 100 may also adopt a direct-type backlight design.

Other embodiments will be enumerated below to describe the present invention in detail, in which the same components will be marked with the same symbols, and descriptions of the same technical content will be omitted. Please refer to the previous embodiments for the omitted parts, which will not be described again.

FIG. 2A is a schematic diagram of the display time of the first frame of a stereoscopic image display system according to the second embodiment of the present invention. FIG. 2B is a schematic diagram of the display time of the second frame of a stereoscopic image display system according to the second embodiment of the present invention. FIG. 2C is a schematic diagram of a partial stereoscopic image formed after the first frame and the second frame are provided by the stereoscopic image display system in FIG. 2A and FIG. 2B . Please refer to FIGS. 2A to 2C at the same time. The imaging principle of the stereoscopic image display system 2 of this embodiment is similar to that of the stereoscopic image display system 1 . The difference lies in that the display image provided by the stereoscopic image display system 2 is different.

Furthermore, the first frame F1 provided by the stereoscopic image display system 2 at the display time T1 of the first frame further includes the first content F11 and the second content F12, and the second frame F2 provided at the display time T2 of the second frame further includes Including the third content F21 and the fourth content F22. The first content F11 and the third content F21 have no difference in viewing angles, and the second content F12 and the fourth content F22 have different viewing angles.

For example, in this embodiment, the first content F11 and the third content F21 are planar images with no difference in viewing angles. In the drawing of FIG. 2C , the planar pattern "A" is taken as an example. The second content F12 and the fourth content F22 are two images with different viewing angles. In the drawing of FIG. 2C , the three-dimensional pattern "A" is taken as an example. In other embodiments, the first content F11 and the third content F21 may also be continuously changing images with no viewing angle difference, and the third content F21 and the fourth content F22 may also be continuously changing images with no viewing angle difference. image, the present invention is not limited to this.

The imaging principle of the stereoscopic image display system 2 of this embodiment will be described below. Referring to FIG. 2A, at the display time T1 of the first frame, the display device 101 receives the image signal to provide the first image IMG1'. At this time, the first light source 110 is turned on synchronously to provide the light beam of the first wavelength distribution λ1 to the display device 101 to provide the light beam of the first image IMG1' to form the first frame F1.

Accordingly, the first frame F1 has the light beam with the first wavelength distribution λ1, and carries the information of the first image IMG1', and passes through the color filter 130 and the first filter unit 210 in sequence, and is transmitted to the user 10 The left eye L. Since the first frame F1 has the light beam with the first wavelength distribution λ1 and is filtered out by the second filter unit 220, the right eye R of the user 10 does not receive the first frame F1. Therefore, at the display time T1 of the first frame, only the left eye L of the user 10 receives the first frame F1, that is, only the left eye L receives the first content F11 and the second content F12.

Next, please refer to FIG. 2B. After the time difference ΔT, at the display time T2 of the second frame, the display device 101 receives the image signal to provide the second image IMG2'. At this time, the first light source 110 is turned off, and the second light source 120 is turned on simultaneously to provide the light beam with the second wavelength distribution λ2 to the display device 101, so as to provide the second image IMG2' with the light beam to form the second frame F2.

Accordingly, the second frame F2 has a light beam with the second wavelength distribution λ2, and carries the information of the second image IMG2', and passes through the color filter 130 and the second filter unit 220 sequentially, and is transmitted to the user 10 The right eye R. Since the second frame F2 has a light beam with the second wavelength distribution λ2, which is filtered out by the first filter unit 210, the left eye L of the user 10 does not receive the second frame F2. Therefore, at the display time T2 of the second frame, only the right eye R of the user 10 receives the second frame F2, that is, only the right eye R receives the third content F21 and the fourth content F22.

Please refer to FIG. 2C. As a result, since the time difference ΔT between the display time T1 of the first frame and the display time T2 of the second frame is less than the visual persistence time of the human eye, the user 10 will think that the left eye L and The right eye R simultaneously receives the first content F11 and the third content F21 with no difference in viewing angle, so a two-dimensional visual image is generated through the first content F11 and the third content F21; and for the user 10, it will be considered that the left eye The eye L and the right eye R simultaneously receive the second content F12 and the fourth content F22 with different viewing angles, whereby the user 10 can generate a stereoscopic image through the second content F12 and the fourth content F22. In other words, the display screen of the three-dimensional image display system 2 of this embodiment can also achieve the display effect of partial three-dimensional images.

Of course, the present invention is not limited to this. In other non-illustrated embodiments, the first frame F1 and the second frame F2 formed by the first image and the second image may be images without viewing angle differences. Moreover, the first light source 110 can also provide a light beam with the first wavelength distribution λ1 to the second image, and the second light source 120 can also provide a light beam with the second wavelength distribution λ2 to the first image. In other words, the first light source 110 and the second light source 120 are both turned on during the display time T1 of the first frame and the display time T2 of the second frame without switching according to timing. Accordingly, the three-dimensional image display system 2 can also provide two-dimensional visual images and be used as a flat-panel display. That is to say, the three-dimensional image display system 2 of the present invention can conveniently switch between three-dimensional image display and two-dimensional image display, making it convenient for the user 10 to use.

To sum up the above, in the three-dimensional image display system of the present invention, since the first frame and the second frame provided by the three-dimensional display device of the present invention each include red, green and blue color bands, the resolution, chroma and brightness can be achieved without sacrificing the resolution, chroma and brightness. On the basis of forming a three-dimensional image. Since the first filter unit and the second filter unit of the filter glasses are each adapted to pass the wave band of the first frame and the wave band of the second frame, they do not need to operate synchronously with the timing of the first frame and the second frame. This allows users to view three-dimensional images through filter glasses. It reduces the design difficulty, power consumption and cost of filter glasses, improves the user's viewing experience and reduces the burden on the eyes.

1, 2: Stereoscopic image display system 10:User 100:Stereoscopic display device 101:Display device 110:First light source 120:Second light source 130: Color filter 140:Light guide plate 140s1: first side 140s2: Second side 140o: light-emitting surface 200:Filter glasses 210: First filter unit 220: Second filter unit B1: The first blue light band B2: The second blue light band BO: Blu-ray overlap range F1: first frame F11: First content F12: Second content F2: second frame F21:Third content F22: The fourth content G1: The first green light band G2: The second green light band GO: Green light overlap range IMG1, IMG1’: the first image IMG2, IMG2’: second image L:Left eye R:right eye R1: The first red light band R2: The second red light band RO: red light overlap range T1: Display time of the first frame T2: Display time of the second frame λ1: first wavelength distribution λ2: Second wavelength distribution ФR: Peak overlap range Δλ: wavelength difference ΔT: time difference

1A is a schematic diagram of the display time of the first frame of a stereoscopic image display system according to the first embodiment of the present invention. 1B is a schematic diagram of the display time of the second frame of a stereoscopic image display system according to the first embodiment of the present invention. 1C is a schematic spectrum diagram of the first wavelength distribution of the first light source and the second wavelength distribution of the second light source of a three-dimensional image display system according to the first embodiment of the present invention. 1D is a schematic diagram of the transmission spectrum of the first filter unit of a three-dimensional image display system according to the first embodiment of the present invention. 1E is a schematic diagram of the transmission spectrum of the second filter unit of a three-dimensional image display system according to the first embodiment of the present invention. 1F is a schematic spectrum diagram of the first wavelength distribution of the first light source and the second wavelength distribution of the second light source of a three-dimensional image display system according to another embodiment of the present invention. FIG. 2A is a schematic diagram of the display time of the first frame of a stereoscopic image display system according to the second embodiment of the present invention. FIG. 2B is a schematic diagram of the display time of the second frame of a stereoscopic image display system according to the second embodiment of the present invention. FIG. 2C is a schematic diagram of a partial stereoscopic image formed after the first frame and the second frame are provided by the stereoscopic image display system in FIG. 2A and FIG. 2B .

1:Stereoscopic image display system

10:User

100:Stereoscopic display device

101:Display device

110:First light source

120:Second light source

130: Color filter

140:Light guide plate

140s1: first side

140s2: Second side

140o: light-emitting surface

200:Filter glasses

210: First filter unit

220: Second filter unit

F1: first frame

IMG1:First Image

L:Left eye

R:right eye

T1: Display time of the first frame

λ1: first wavelength distribution

Claims (16)

A three-dimensional image display system, including: a three-dimensional display device that provides a first frame to the user's left eye and a second frame to the user's right eye, wherein the three-dimensional display device further includes: a display device that provides the first frame The first image and the second image of the second frame are provided; the first light source provides a light beam of a first wavelength distribution to the first image, and the first wavelength distribution includes a first red light band, a first green light band and a first blue light band; a second light source that provides a second wavelength distribution of light beams in the second image; the second wavelength distribution includes a second red light band, a second green light band and a second blue light band, wherein the first red light band The light waveband is different from the second red light waveband, the first green light waveband is different from the second green light waveband, the first blue light waveband is different from the second blue light waveband; and a color filter is provided on the display device above, the color filter is adapted to allow the light beams of the first wavelength distribution and the second wavelength distribution to pass; and the filter glasses include a first filter unit and a second filter unit, the first filter unit is adapted to In order to allow the light beam of the first wavelength distribution to pass and filter out the light beam of the remaining wavelength bands, the second filter unit is adapted to let the light beam of the second wavelength distribution pass and filter the light beam of the remaining wavelength bands, wherein the first red light The waveband and the second red light waveband have a red light overlap range, the first green light waveband and the second green light waveband have a green light overlap range, and The first blue light band and the second blue light band have a blue overlapping range, wherein the peak value of the overlapping range of the red light overlapping range is less than half of the peak value of the first red light band and less than half of the peak value of the second red light band, the The peak value of the overlapping range of the green light overlapping range is less than half of the peak value of the first green light band and less than half of the peak value of the second green light band, and the peak value of the overlapping range of the blue light overlapping range is less than half of the peak value of the first blue light band. and less than half of the peak value of the second blue light band. The three-dimensional image display system according to claim 1, wherein the three-dimensional display device further includes: a light guide plate having a light exit surface and first and second side surfaces adjacent to the light exit surface, and the first side surface and the third side surface are adjacent to the light exit surface. The two sides are opposite, and the display device is located between the light-emitting surface and the color filter. The three-dimensional image display system of claim 2, wherein the first light source provides the light beam with the first wavelength distribution toward the first side, and the second light source provides the light beam with the second wavelength distribution toward the second side. The three-dimensional image display system of claim 1, wherein the first light source and the second light source are direct light sources. The three-dimensional image display system of claim 1, wherein the wavelength difference between the first red light band and the second red light band, the wavelength difference between the first green light band and the second green light band and the first The wavelength difference between the blue light band and the second blue light band is 30 nanometers. The three-dimensional image display system of claim 1, wherein the display time of the first frame and the display time of the second frame have a time difference, and the time difference is smaller than the visual persistence time of human eyes. The three-dimensional image display system of claim 6, wherein the first frame includes first content and second content, and the second frame includes third content and fourth content, wherein the first content and the third content are different. There is a difference in perspective, and the second content and the fourth content have a difference in perspective. The three-dimensional image display system of claim 1, wherein the first light source also provides the light beam with the first wavelength distribution in the second image, and the second light source also provides the light beam with the second wavelength distribution in the first image. . The three-dimensional image display system of claim 1, wherein the first light source and the second light source are light emitting diodes or laser diodes. A kind of filter glasses, including: a first filter unit, adapted to pass a light beam of a first wavelength distribution and filter out the light beam of other wavelength bands. The first wavelength distribution includes a first red light band, a first green light band and a third a blue light band; and a second filter unit adapted to allow the light beam of the second wavelength distribution to pass through and filter out the light beam of the remaining wavelength bands. The second wavelength distribution includes a second red light band, a second green light band and a second blue light. Waveband, wherein the first red light waveband is different from the second red light waveband, the first green light waveband is different from the second green light waveband, the first blue light waveband is different from the second blue light waveband, wherein the first The red light band and the second red light band have a red light overlap range, The first green light waveband and the second green light waveband have a green light overlapping range, and the first blue light waveband and the second blue light waveband have a blue light overlapping range, wherein the peak value of the overlapping range of the red light overlapping range is smaller than the first red light overlapping range. Half of the peak value of the light waveband and less than half of the peak value of the second red light waveband, and the peak value of the overlapping range of the green light overlapping range is less than half of the peak value of the first green light waveband and less than half of the peak value of the second green light waveband. Half, the peak value of the overlap range of the blue light overlap range is less than half of the peak value of the first blue light band and less than half of the peak value of the second blue light band. The filter glasses according to claim 10, wherein the filter glasses are passive filter glasses. The filter glasses of claim 10, wherein the wavelength difference between the first red light band and the second red light band, the wavelength difference between the first green light band and the second green light band and the first blue light The wavelength difference between the wavelength band and the second blue light band is 5 nanometers to 50 nanometers. A three-dimensional display device provides a first frame to the user's left eye and a second frame to the user's right eye, wherein the three-dimensional display device includes: a display device that provides a first image of the first frame and provides the third A second image of two frames; a first light source that provides a beam of light with a first wavelength distribution to the first image, and the first wavelength distribution includes a first red light band, a first green light band, and a first blue light band; a second light source , providing a light beam with a second wavelength distribution in the second image. The second wavelength distribution includes a second red light band, a second green light band and a second blue light band, wherein the first red light band is different from the second red light band. light band, the first green light band is not The first blue light band is the same as the second green light band, the first blue light band is different from the second blue light band; and a color filter is provided on the display device, the color filter is suitable for making the first wavelength distribution and the The light beam with the second wavelength distribution passes through, wherein the first red light band and the second red light band have a red light overlapping range, the first green light band and the second green light band have a green light overlapping range, and the The first blue light band and the second blue light band have a blue overlapping range, wherein the overlapping range peak of the red light overlapping range is less than half of the peak value of the first red light band and less than half of the peak value of the second red light band, and the green The peak value of the overlapping range of the light overlapping range is less than half of the peak value of the first green light band and less than half of the peak value of the second green light band, the peak value of the overlapping range of the blue light overlapping range is less than half of the peak value of the first blue light band and Less than half of the peak value of the second blue light band. The stereoscopic display device of claim 13, wherein the display time of the first frame and the display time of the second frame have a time difference, and the time difference is smaller than the visual persistence time of human eyes. The stereoscopic display device of claim 14, wherein the first frame includes first content and second content, and the second frame includes third content and fourth content, wherein the first content and the third content do not have Difference in perspective: the second content and the fourth content have a difference in perspective. The three-dimensional display device of claim 13, wherein the first light source further provides the light beam with the first wavelength distribution to the second image, and the second light source further provides the light beam with the second wavelength distribution to the first image.

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