TW201142358A - A stereoscopic image display device - Google Patents

Abstract

The present invention may provide a stereoscopic image display device capable of preventing crosstalk or reduction of viewing angles upon displaying stereoscopic images, and improving image quality such as contrast ratio; an optical filter for the stereoscopic image display device; polarizing glasses for observing stereoscopic images; or a method of improving stereoscopic image quality.

Description

201142358 VI. Description of the Invention: [Technical Field] The present invention relates to a stereoscopic image display device, an optical filter of a stereoscopic image display device, a glasses for viewing stereoscopic images, and an improved stereoscopic image quality. The method. [Prior Art] A stereoscopic image display device is a display device whereby a viewer can view a three-dimensional object to be displayed. The stereoscopic image display device ' can be distinguished as a glasses type device and a glassesless type device. In addition, the glasses type can be divided into a polarizing (p〇larizing) glasses type and a liquid crystal aperture (LC shutter) glasses type, and the non-glasses type can be classified into a binocular/multi_view binocular disparity type. , volume or holographic, and so on. SUMMARY OF THE INVENTION An object of the present invention is to provide a method of providing an optical filter of an integrated image display device to improve stereoscopic image quality. Stereoscopic image display device, eyeglasses for viewing stereoscopic images, and the present invention relates to a stereoscopic image, a mouth-and-mouth device, including an image display component capable of generating a silly picture by the right eye ^ ^ ^ Image of the first and left eye image rays (4) 'and can be retransmitted to the viewer-square; and a retardation film > Α ^ , the sub-direction has a phase difference And set the image signal to be transmitted by the image display component root according to the thickness direction, and then transmitted to the viewer side after 201142358. The stereoscopic image display device will be described in detail below. In 4, terms, such as vertical, horizontal, upright or parallel, are used to define an angle, meaning substantially vertical, horizontal, upright or parallel within the range without damaging the intended effect, and may be as Errors or deviations produced, and so on. For example, the terms each include an error of no more than about ± 5 degrees, preferably an error of no more than about a degree, and more preferably an error of no more than about ± 5 degrees. In the specification, unless otherwise specified, the unit of the angle is the unit of the phase difference, the unit of the crosstalk ratio or the brightness is "cd/m2". If the right-eye image ray and the left-eye image ray are generated in the image display component of the stereoscopic image display device, and appropriately passed or prevented from being transmitted to the viewer during the process, each image ray can be accurately viewed by the viewer. The right eye or the left eye is viewed, so that when the image quality (eg, contrast) is improved, the brightness and darkness can be more clearly recognized. However, in general, if the stereoscopic image display device is viewed at an oblique angle, it is difficult to properly prevent the light of the right eye or the left eye from leaking light, so a so-called crosstalk phenomenon occurs in which the right eye image light is viewed by the left eye or The left eye image is viewed by the right eye. In addition, the viewing angle is narrowed. In order to prevent crosstalk, a light shielding member may be formed on the device; however, the formed light shielding member inevitably causes a decrease in luminance. · In the stereoscopic image display device, a retardation film has a phase difference in the thickness direction, and when the device operates, the 201142358 image signal viewed by the viewer is processed along the path direction, that is, the phase difference film is set to be generated by the image display unit. The image ^ is between the viewer and the viewer. The retardation film can control the optical characteristics of the image signals generated by the image display unit and then transmit them to the viewer to solve problems such as crosstalk or drop in viewing angle without reducing brightness, and can also improve stereo image quality. . The term "device operation, herein refers to a state in which the device displays a stereoscopic image. As long as the phase difference film has a phase difference in the thickness direction, preferably, a positive phase difference in the thickness direction" is various in this field. Known retardation film, such as '+C plate or +B plate' can be used. +c plate here means that the film conforms to the use of formula 1, and +B plate here means that the film conforms to formula 2 or 3. Use [Formula 1] NX = Ny < Nz [Formula 2]

Nx / Ny ^ Nz [Formula 3]

Nx off Ny < Nz where 'Nx denotes the plane refractive index in the slow axis direction of the retardation film, Ny denotes the plane refractive index in the fast axis direction of the retardation film, and Nz denotes the refractive index in the thickness direction of the retardation film . The phase difference (Rih) in the thickness direction of the above-mentioned retardation film can be calculated by the formula 4, and the phase difference (Rin) of the retardation film in the planar direction can be calculated by the formula 5. [Formula 4] 201142358 [Formula 5]

Rin = d x (Ny-Ns) where 'Nx, 乂 and 队 have the same definition as Equations 1 to 3, and d denotes the thickness of the retardation film. In this field, methods for measuring Nx, Ny, Nz, Rth, and Rin of retardation films are well known, and those skilled in the art can easily measure Nx, Ny, Nz, Rth, and Rin of retardation films. . The range of the phase difference in the thickness direction of the retardation film is not particularly limited, and may depend on a stereoscopic image display device or a phase difference film property or the like. In one embodiment, between the retardation films, the phase difference of the +C plate may conform to Equation 6 or 7' and the phase difference of the +B plate may conform to Equations 8 through 11. [Formula 6] YL or Yr = 0.0201X2 -0.0398X+0.0339 $ 0.5 [Formula 7] YL = 0.0192X2 -0.0763X +0.0899 < 0.5 [Formula 8] YR = (9.24x10*7)X2 -0.000236X + 0.0288 < 0.5 [Formula 9] YL = (5.5χ1〇·?)Χ2 -0.000347Χ +0.067 < 0.5 [Formula 10] YR = (1.97xlO'6)X2 -0.000616X +0.0644 < 0.5 [Formula 11 ] YL = (l.99xl〇-6)X2 -0.00125X +0.206 < 0.5 where X of Equations 6 and 7 is the phase difference in the thickness direction of the +C plate, and X of Equations 8 to 11 is the +B plate The phase difference in the thickness direction. 6 201142358 Further, yl of Equations 6 to 11 represents the left eye crosstalk ratio (unit: cd/m2) of the viewer at the time of operation of the stereoscopic image device. Yl is preferably 〇 3 or lower, more preferably 0.1 or lower, still more preferably 0 05 or lower, most preferably 〇 〇 1 or lower. Further, 'yr' represents the right eye crosstalk ratio (unit: cd/m2) of the viewer when the stereoscopic image device is operating. Yr is preferably 〇 3 or lower, more preferably 〇" or below, more preferably 0 05 or less, and most preferably 〇 〇 1 or lower. According to the formula 6 to 11', the phase difference in the thickness direction between the right-eye image ray region and the phase difference film passing through the left-eye image ray region can be designed to be identical to each other or different from each other. As described above, the distinction between the right-eye image light and the left-eye image light is not particularly limited. For example, as described below, when the device is a polarized glasses type device including a polarization control layer, the distinction between the right-eye image light and the left-eye image light can be defined by the following context according to the category of the polarization control layer. When the design of the phase difference is different from each other, in the +C board, the phase difference between the light ray area passing through the right eye and the thickness direction of the ray area passing through the left eye image may conform to Equation 6; or one through the right eye image The phase difference in the thickness direction of the ray region can conform to Equation 6, and the phase difference in the thickness direction of the ray region of the left eye image can conform to Equation 7, but is not limited thereto. In addition, the phase difference between the thickness direction of the light region of the right eye image of the +b plate can be in accordance with Equation 8, and the phase difference of the thickness direction of the light region through the left eye image can conform to Equation 9; The phase difference 'in the thickness direction of the light region of the right eye image can conform to Equation 10, and the phase difference in the thickness direction of the light region of the left eye image can conform to Equation 11, but is not limited thereto. 201142358 In the embodiment, the phase difference of the retardation film in the thickness direction may be, for example, from 3 Å to 350 nm. Further, in the case of the retardation film + B plate, the film has a phase difference in the planar direction, and the phase difference in the thickness direction is the same, and the phase difference in the planar direction can be appropriately selected in consideration of the stereoscopic image quality, for example, You can choose from about 12 nanometers to 16 nanometers. However, the range of phase difference is only an example, and the phase difference (Ru and Rin) can be designed according to the type of display device and the specific configuration. Preferably, embodiments of such controls are accomplished in accordance with the above formula. The image display member is included in the device without any particular limitation, and all of the image display members can be used for various stereoscopic image display devices in the art including glasses type or non-glasses type. In one embodiment, the device may be of the spectacles type, particularly a polarizing eyeglass type stereoscopic image display device. The image display component may include an image generating component that generates an image signal composed of the right eye image light and the left eye image light, and then transmits the image signal to the viewer side; and a polarization control layer is disposed in the image Like the viewer side of the generating component, if the image signal is input into which 'the image signal can be controlled, the right eye image light and the left eye image light have mutually different polarization states, and can also be transmitted to the viewer. -square. Fig. 1 is a view showing an aspect of a stereoscopic image display device (丨) as described above. The apparatus for image forming component of FIG. 1 includes a light source (11), a first polarizing plate (12), an image generating layer (13), and an 8201142358 two polarizing plate (14), and A polarization control layer (丨5) can be placed in the viewer (17) of the image generation component. In one embodiment, the viewer (17) can wear polarized glasses to view the stereo image. The polarized glasses may have, for example, a right eyeglass lens and a left eyeglass lens, and the right eyeglass lens and the left eyeglass lens may respectively include a polarizing plate. There are different absorption optical axes by designing the polarizing plate on each lens. For example, the absorption optical axis of the polarizing plate of the right lens and the absorption axis of the polarizing plate of the left lens are perpendicular to each other, which can make the left The eye image light is only viewed by the left eye, while the right eye image light is only viewed by the right eye. In one embodiment, the right eye and left eyeglasses may further comprise a polarizing plate having a 1/4 wavelength layer, respectively. In this case, the absorption optical axes of the polarizing plates do not have to be always different from each other. For example, in the above embodiments, the polarizing plates that control the right eye and the left eyeglass lens have mutually parallel absorption optical axes' while also controlling the right eye and the left eye; the lenses of the 1/4 wavelength layer have optical axes of different directions from each other, For example, it is designed for the right eye and the left eyeglass; the optical axis of the lens of the 1/4 wavelength layer is perpendicular to each other, which allows the left eye image light to be viewed only by the left eye, while the right eye image light is only the right eye. Watch. Alternatively, a method may be used to control the polarizing plates of the right and left ophthalmic lenses to have different directions from each other. The optical axes of the lenses of the λ /4 wavelength layers of the right and left ophthalmic lenses are also controlled to be parallel to each other. The term "a μ wavelength layer" refers to a phase delay element that retards the phase of incident light at a quarter wavelength of the wavelength of the incident light. In the device (1) of Fig. 1, the light source (1 1 ) is a portion of the image generating member. For example, in the state of using the device (1), unpolarized white light can be emitted toward the polarizing plate (12). For example, the light source (11), for example, direct type or side 201142358 edge type backlight early element (BLU), is usually used in liquid crystal display devices and can also be used. In the device (1) of Fig. 1, the first polarizing plate (?2) is disposed on the side of the light source (u). The first polarizing plate (12) may have a transmission optical axis and an absorption optical axis perpendicular to the transmission optical axis. When the light emitted by the light source (Π) is viewed, only the light having the polarization axis parallel to the transmission optical axis can pass through the first polarizing plate (12). The direction of the polarization axis may be an electric field. Direction of vibration. The apparatus (1) of FIG. 1 , the image generation layer (i 3 ) may be, for example, a liquid crystal display device in which a single pixel or a plurality of pixels of a right-eye or left-eye image light can be generated and arranged in a straight line and / or the direction of the course. Such a display panel can generate an image signal including left-eye and right-eye image light by displaying each pixel according to the signal in the state of using the device (丨), and transmitting the generated image signal to The second polarizing plate (14) ❶ display panel may include, for example, a substrate, a pixel electrode, an alignment layer, a liquid crystal layer, another alignment layer, a common electrode, a color light-emitting sheet, and a substrate for processing the light source, 〇丨). In the display panel, a single pixel or at least two pixels may form a right eye image generation area (UR) or a left eye image generation area (UL). The right-eye image generation area (UR) or the left-eye image generation area (UL) may be, for example, an alternate strip pattern extending from a common direction as shown in Fig. 2, or a grid pattern as shown in Fig. 3. When the field stereoscopic image display device operates, the right eye and left eye image generation regions respectively generate a right eye image and a left eye image. For example, in the example of Figure 0! 0 201142358, 1), S light emitted by the light source (1 1 ) passes through the first polarizing plate ((1), 'and then input to the display part (13), which passes the right eye image The light that generates the area (:R) becomes the right eye image, and the light that passes through the left eye image generation area (1) becomes the left eye image. In one embodiment, the right and left eye images may have respective polarizations in a particular direction. Linearly polarized light of the optical axis, and these polarized optical axes may have mutually parallel directivity. In the device (1) of Fig. 1, the second polarizing plate (14) is disposed toward the viewer side. When the right eye and the left eye are light Entering the second polarizing plate (14), only the transmission optical axis parallel to the polarizing plate (14) can pass through the polarizing plate (14). In an embodiment, the first and second polarizing plates (12, 14) The transmission optical axis can be processed so as to form a mutual angle of 9 degrees. In the device (1) of Fig. 1, the polarization control layer (15) includes a polarization control region (AR) of a right eye image light and a left Polarization control area (AL) of the eye image light. Polarization control area (AR) of the right eye image light In order to control the polarization state of the light of the right eye image, it is generated and transmitted by the right eye image generation area (UR), and the right eye image light can be set to be input. The polarization control area of the left eye image light (AL) Is a region that controls the polarization state of the light of the left eye image, which is generated and transmitted by the left eye image generation region (and can be set to input the left eye image ray. For example, if at the image generation layer (13) The right eye and left eye image generation regions are set as shown in Fig. 2. The polarization control region (AR 'AL ) can be set as shown in Fig. 4. If the image generation region (UR 'UL ) is set as shown in Fig. 3, The polarization control region (AR, AL) may be set as shown in Fig. 5, but is not limited thereto. 201142358 The right eye and left eye image rays have mutually different polarization states after passing through the polarization control layer (15). In the example, the right- and left-eye image light rays may include linearly polarized light having directivity and may be substantially perpendicular to each other, and may also include left-hand circularly polarized light or right-hand circularly polarized light. As illustrated in FIG. 1, the retardation film (16) set on the device ( Between the image generating unit and the viewer (17), the phase difference film (丨6) has a phase difference in the thickness direction, which allows the image signal to pass through the phase difference film (16) according to the thickness direction. The signal is transmitted to the viewer (n). As shown in the figure, 'in the example, the stereoscopic image display device is a polarized glasses type device, and the retardation film (16) can be combined with the polarization control layer attached to the image display member ( 15) 'It can also be attached to polarized glasses worn by the viewer (17). As shown in Figure 1 (1), the polarization control layer (15) includes polarization control zones for the right and left eye image light (AR, AL). The right and left eye image rays may be linearly polarized rays after passing through the control layer (15) and may be substantially perpendicular to each other 'and may also include left hand circularly polarized light or right hand circularly polarized light. In one embodiment, the right eye and left eye image light rays are left-hand circularly polarized light or right-hand circularly polarized light, respectively, and the polarization control layer may include polarization control regions of the right-eye image light and polarization control of the left-eye image light. a region, the control layer also includes a λ /4 wavelength layer of a polarization control region of the image light disposed in both the right eye and the left eye, and a /4 wavelength layer on the left side of the polarization control region of the right eye image light The λ /4 wavelength layer of the polarization control region of the eye image light may also have mutually different optical axes. The optical axis here refers to the fast axis or the slow axis when the incident light passes through the corresponding region. In the polarization control region of the right eye image light; the optical axis of the I / 4 wavelength layer and the optical axis of the λ / 4 wavelength layer of the polarization control 12 201142358 region of the left eye image light can form an angle of 9Q to each other . Thereafter, the polarization control layer as described above may be referred to as a "patterned λ / 4 wavelength layer. In another embodiment, the polarization control layer produces left-hand circularly polarized light and right-hand circularly polarized light, which may include left eye images. The polarization control region of the light and the polarization control region of the right eye image light, and the control layer further includes an X/4 wavelength layer in the polarization control region of the right eye and left eye image light with images in the right eye and left eye The λ/2 wavelength layer of any of the polarization control regions of the light. Hereinafter, the polarization control layer may be referred to as a "(and /2+ λ /4) wavelength layer". In addition, the definition of the λ /4 wavelength layer It is the same as the foregoing, and the term "λ/2 wavelength layer" as used herein refers to a phase delay element capable of delaying the phase of incident light at a wavelength range of 1/2 of the wavelength of the incident light. When the image signal is left-handed by the above The polarization control layer of circularly polarized light or right-handed circularly polarized light is emitted, and the viewer can wear polarized glasses including right and left glasses for proper viewing of the image signal, and the right and left glasses respectively include λ /4 wavelength layer and polarizing plate. Hereinafter, polarization The glasses are composed of a λ / 4 wavelength layer, as described above for circularly polarized glasses. Further, in one embodiment, the right eye and the left eye lens of the 'circularly polarized glasses may include a lens, a polarizing plate, and a λ/4 wavelength, respectively. Layers, which are arranged in order from the viewer when wearing glasses. In addition, the image signals can also be worn with polarized glasses as described above, 'right and left glasses, or right and left glasses with polarizing plates. The composition of the sheet. Hereinafter, the polarized glasses may be referred to as linearly polarized glasses. The optical axes of the wavelength layers of the circularly polarized and linearly polarized glasses and the absorption axis of the polarizing plate may be controlled as described above. 13 201142358 In a polarized glasses type device, When the polarization control layer is an (A Α Μ) wavelength layer, the retardation film may be +B or +(: plate. • In the specification 'When the polarization control layer is a (λ/2+λ/4) wavelength layer, it is controlled by polarization. The light in the region where only the λ/4 wavelength layer exists may be regarded as the right-eye image light, and the light in the region of the (10) long layer and the further wavelength layer may be regarded as the left eye when passing through the polarization control layer (4). Image light. In the previous example 'phase The poor film is money, and the phase difference in the thickness direction can be determined according to the formula 6 or 7, for example, about 5 〇 nanometer to 27 () nanometer. Preferably, the eye image light passes through the +C plate region when the thickness is The phase difference of the direction can be controlled according to Equation 6, for example, M 〇 nanometer to 2 〇〇 nanometer, and more preferably 15 〇 nanometer to 190 nm. In addition, the phase of the left-eye image light passes through the region in the thickness direction. The difference can be controlled according to Equation 7, for example, 6 〇 nanometer to 12 〇 nanometer is preferably 7 〇 nanometer to 11 GHz nanometer. Further, in a preferred example, the viewer wears the aforementioned circularly polarized glasses to view a stereoscopic image display device. In addition, the aforementioned retardation film is not particularly limited as long as it is disposed between the image display member and the viewer. For example, the lens 1 is attached to the polarization control layer or polarization of the image display member. The front of the glasses. However, if the right eye image line and the left eye image line have different phase differences in the thickness direction, the phase difference film is preferably attached to the front side of the polarized glasses. However, even in the above case, the retardation film may be patterned by itself and incorporated into the device without being attached to the front surface of the polarized glasses. Further, if the retardation film is a +-plate, the phase difference in the thickness direction can be determined according to the formula, for example, about 50 nm to 35 Å. Further, in this case, the phase difference (Rin) in the plane of the + Β plate may be, for example, about 〇2〇 14 201142358 nm to 160 nm. Preferably, when the light of the right eye passes through the +B plate region, the phase difference in the thickness direction can be controlled according to Equation 8, for example, 1 5 〇 nanometer to 35 〇 nanometer, and more preferably 200 nm to 300 nm. . Further, when the left-eye image light passes through the +B plate region, the phase difference in the thickness direction can be controlled according to Formula 9, for example, 50 nm to 250 nm, more preferably 100 nm to 150 nm. Further, the preferred example 'has a different phase difference in the thickness direction from the region of the right-eye image ray and the region through the left-eye image ray. Further, in the preferred example, the viewer wears the aforementioned linearly polarized glasses to view the stereoscopic image display device, but is not limited thereto. Further, the position at which the retardation film is disposed is the same as described above. In the polarized glasses type device, if the polarization control layer is a patterned λ /4 wavelength layer, the retardation film may be a +c plate or a + Β plate, but more preferably a +C plate. In the specification, when the polarization control layer is a patterned λ/4 wavelength layer, light passing through any of the plurality of λ/4 wavelength layers having mutually different optical axes can be regarded as the right eye. The image light; the light passing through the other λ/4 wavelength layer in the plurality of λ/4 wavelength layers having mutually different optical axes can be regarded as the image light of the left eye. As described above, the retardation film is a +C plate, and the phase difference in the thickness direction can be determined according to the formula, for example, about 3 Å to 35 Å. Preferably, when the light of the right eye passes through the +C plate region, the phase difference in the thickness direction can be controlled according to the formula 6; for example, 150 nm to 3 〇〇 nanometer, more preferably 2 〇〇 nanometer to 3 〇〇 Nano. In addition, when the light of the left eye image passes through the region, the phase difference in the thickness direction can be controlled according to Equation 6, for example, 5 〇 nanometer to 25 〇 nanometer, and more preferably 1 〇〇 nanometer to 150 mil. Further, in a preferred example, the viewer wears the aforementioned circularly polarized glasses 15 201142358 to view the stereoscopic image display device, but is not limited thereto. Further, the position at which the retardation film is disposed is the same as described above. In the polarized glasses type device of FIG. 1, when the polarization control layer generates linearly polarized light rays' and is substantially perpendicular to each other, the polarization control layer may be composed of a polarization control region of the right eye image light and a polarization control region of the left eye image light. And the control layer may include a λ/2 wavelength layer disposed only in any of the polarization control regions of the right eye and the left eye. The polarization control layer as described above may be referred to as a "patterned and/2 wavelength layer." In the polarized glasses type device, when the polarization control layer is patterned; the i/2 wavelength layer' retardation film may be a +C plate or a +B plate, but more preferably a +8 plate. In the specification, when the polarization control layer is patterned; in the 1/2 wavelength layer, the light passing through the region of the polarization control layer where the λ/2 wavelength layer is absent may be regarded as the image light of the right eye; by the presence of the λ/2 wavelength layer The light of the area of the polarization control layer can be regarded as the image light of the left eye. Here, the phase difference in the thickness direction of the + gusset plate can be determined according to the formula, for example, about 50 nm to 350 nm. Further, in this case, the phase difference (RIN) in the plane of the + gusset plane may be, for example, about 120 nm to ι 6 〇 nanometer. Preferably, when the right eye image light passes through the +B plate region, the phase difference in the thickness direction can be controlled according to Equation 10, for example, from 150 nm to 350 nm, more preferably from 2 nm to 300 nm. Further, when the light of the left eye image passes through the region, the phase difference in the thickness direction can be controlled according to the formula 11, for example, 5 〇 nanometer to 25 〇 nanometers, more preferably 100 nanometers to 200 nanometers. Further, in a preferred example, the viewer wears the aforementioned circularly polarized glasses to view the stereoscopic image display device, but is not limited thereto. Further, the position at which the retardation film is disposed is the same as described above. 16 201142358 The retardation film ' can use the above description, and is not particularly limited to any particular kind, and is familiar with various retardation films used in the field as long as they exhibit phase difference characteristics as described above. In an embodiment, the retardation film may be a liquid crystal film or a commonly used polymer film. In the case of a polymer film, the phase difference of the polymer film can be controlled in the thickness direction by uniaxial or biaxial stretching. The invention also relates to an optical filter of a stereoscopic image display device, comprising a polarization control layer 'capable of controlling an image signal composed of a right eye image light and a left eye image light, when the image signal is input, The right eye image light and the left eye image light have different polarization states and can emit them; a retardation film is attached to one side of the control layer, so that the image signal is emitted, and there is also a phase difference in the thickness direction. Optical Filters As described above, one of the optical filters has a similar phase difference film type to improve image quality, is attached to the polarization control layer, and can be used in the above-described polarized glasses type stereoscopic image display device. Fig. 6 is a view showing an optical filter (6) in which a retardation film (16) is attached to a polarization control layer (15). The arrow in Fig. 6 represents the direction in which the image signal composed of the left-eye and right-eye image light passes when the stereoscopic display device operates. Therefore, the above case is equally applicable to a specific type of retardation film or value such as phase difference. For example, the retardation film contained in the optical filter is a +C plate, and the phase difference thereof can be in accordance with the formula 6 or 7' or the +B plate, and the phase difference can be in accordance with the following formulas 8 to 11. [Formula 6] 17 201142358

Yl or YR = 0.0201X2 -0.0398X +0.0339 $ 0.5 [Formula 7] YL = 0.0192X2 -0.0763X -^0.0899 < 0.5 [Formula 8] YR = (9.24χ10'7)Χ2 -0.000236X +0.0288 < 〇.5 [Formula 9] YL = (5.5xl〇-?)X2 -0.000347X +0.067 < 0.5 [Formula 10] YR = (1.97χ1〇-6)Χ2 -0.000616X +0.0644 < 〇.5 [ Formula 11] YL = (1.99xlO*6)X2 -0.00125X +0.206 < 0.5 As above, the X of Equations 6 and 7 is the phase difference in the thickness direction of the +C plate' and the X of Equations 8 to 11 is +B The phase difference in the thickness direction of the board. In addition, the YR and YL of the formula ό1 to 1 1 respectively indicate the crosstalk ratio (unit: Cd/m) of the left eye and the right eye when the stereoscopic image device of the optical photopath is applied. The value may be single or simultaneous The ground is preferably ο or lower, more preferably 0.1 or lower, still more preferably 0.05 or lower, most preferably 〇〇1 or lower. Further, the polarization control layer of the 'optical filter may constitute a polarization control layer of the aforementioned stereoscopic image display device, and may, for example, be patterned as a /2 or A / 4 wavelength layer or (λ /2 + again / 4 ) wavelength. Floor. In the field of stereoscopic image display devices, 'various patterned λ/2 wavelength layers' patterning a/4 wavelength layers or (in / 2+; 1/4) wavelength layers or methods thereof are known, and All of the above known methods can be used to form the polarization control layer. 201142358 In the case of an optical filter applied to a device, it can be disposed on the polarization control layer side, so that the image display component input and the image signal generated by the image signal are transmitted via the polarization control layer and transmitted through the phase difference film. By. Further, the method of attaching the retardation film to the polarization control layer is not particularly limited, and may be an optical filter, for example, prepared by a general pressure-sensitive adhesive press. The invention also relates to viewing stereoscopic images using polarized glasses having right and left ophthalmic lenses. Each of the right and left ophthalmic lenses includes a retardation film having a phase difference ' in the thickness direction and a polarizing plate. Polarized glasses can be used to view images emitted by a polarized glasses type stereoscopic image display device. The polarized glasses may be circularly polarized glasses or linearly polarized glasses as described above, and are provided with a retardation film which is useful for improving image quality. Fig. 7 is a view showing a polarized glasses. Fig. 7(A) shows polarized glasses, a left-eye lens containing a polarizing plate (71L) and a retardation film (72L) at a position of a left eye (LE) of a viewer, and a polarizing plate at a position of a right eye (RE) of a viewer. (71R) and the right lens of the retardation film (72R). The arrows in (A) and (B) indicate that the image signal is displayed in the direction of the viewer. Therefore, the above case can be applied to a specific type of retardation film or a numerical value such as a phase difference. For example, the retardation film included in the polarized glasses is a plate whose phase difference can be in accordance with Formula 6 or 7, or a +B plate, and the phase difference can be in accordance with the following Formulas 8 to 11. [Formula 6]

Yl or Yr = 0.0201X2 -0.0398X+0.0339 $ 0.5 19 201142358 [Formula 7] YL = 0.0192X2 -0.0763X +0.0899 < 0.5 [Formula 8] YR = (9.24x10'7)X2 -0.000236Χ +0.0288 <; 0.5 [Formula 9] YL = (5.5x10'7)X2 -0.000347X +0.067 < 0.5 [Formula 10] YR = (1.97χ10'6)Χ2 -0.000616Χ +0.0644 < 0.5 [Formula η] YL = (Ι.99χ10*6)Χ2 -0.00125Χ +0.206 < 0.5 The above formula 'Formula ό and 7' X are the phase difference in the thickness direction of the +C plate, and the X of the formula 8 to 11 is the thickness direction of the +B plate The phase difference. Further, YR and YL of Formulas 6 to 11 respectively indicate the crosstalk ratio (unit: Cd/m2) of the left eye and the right eye during viewing of the stereoscopic image using the polarized glasses, and the value may be 0.3 or less, preferably 0.3 or less. Or lower, more preferably 〇J or lower' is still preferably 0.05 or lower, and most preferably 〇.〇1 or lower. Further, in the case where the polarized glasses are circularly polarized glasses, the left and right glasses may further include a /4 wavelength layer. In the foregoing examples, the absorption axes of the polarizing plates included in the right and left ophthalmic lenses may be parallel to each other, and may be included in the λ /4 wavelength layers of the right and left ophthalmic lenses, and may be mutually different optical axes. In other embodiments, the absorption axes of the polarizing plates included in the right and left ophthalmic lenses may be in mutually different directions, included in the λ/4 wavelength layers of the right and left ophthalmic lenses, and may be mutually parallel optical axes. Fig. 7 (Β) is an explanatory diagram of polarized glasses, showing polarized glasses, including a polarizing plate (71L), a λ /4 wavelength layer (73L) 20 201142358 and a retardation film (72L) by the viewer's left eye (LE) position. The left eyeglass lens is composed of a lens containing a polarizing plate (71R) 'λ/4 wavelength layer (73R) and a retardation film (72R) at the viewer's right eye (rE) position. The present invention also relates to a method for improving the quality of stereoscopic image display, displaying a stereoscopic image via an image display component, which is capable of generating image signals composed of right-eye and left-eye image rays, respectively, and is respectively viewed by the viewer The eye and the left eye view it and then transmit it to one of the viewers. The method includes the step of providing a retardation film having a phase difference in the thickness direction such that the image signal is emitted by the image display member by a retardation film in the thickness direction and then transmitted to one of the viewers. In an embodiment, the method for improving the quality of stereoscopic image display may be a method for preparing a stereoscopic image display device, and the quality of the stereoscopic image may be improved by the position of the retardation film between the image display component and the viewer. Or a method of using a stereoscopic image display device in which a viewer wears polarized glasses and then views a stereoscopic image. Therefore, the above-mentioned case can be equally applied to a specific type of retardation film or a value such as a phase difference. For example, the retardation film included in the method is a +C plate, the phase difference thereof may conform to Equation 6 or 7, or the +B plate' may have a phase difference which satisfies the following formula 8 to 1^. [Formula 6] YL or YR = 0.0201X2 -0.0398X +0.0339 $0.5 [Formula 7] YL = 0.0192X2 -0.0763X +0.0899 < 0.5 [Formula 8] YR = (9.24χ1〇·?)Χ2 -0.000236Χ + 0.0288 < 0.5 21 201142358 [Formula 9]

Yl = (5.5χ1〇-7)χ2 -0.000347Χ +0.067 < 0.5 [Formula 10]

Yr = (1·97χ1〇-6)χ2 -〇.〇〇〇616χ +0.0644 < 0.5 [Formula 1]]

Yl = (1.99χ1〇-6)χ2 -0.00J25X +0.206 < 0.5 As the above formula, the X of the formulas 6 and 7 is the phase difference in the thickness direction of the +C plate, and the formula X to X is the + Β plate The phase difference in the thickness direction. Δ6 to 丨, and Y1 respectively indicate the left eye and (4) 4 scrambling ratio (n Cd/m2) when the stereoscopic image display device operates, and the value may be separately or simultaneously preferably (four) lower, more Preferably, M or lower, more preferably 0.05 or lower, most preferably 〇〇1 or lower. In the case where the method is a method of preparing a stereoscopic image display device, or polarized glasses, As long as the method comprises the steps of: placing the dislocation film in a suitable position, the use is not particularly limited, and in the;;= step or component type for application herein. Advantageous Effects of the Invention The present invention provides an optical filter that provides a crosstalk of a stereoscopic image or a reduced viewing angle to prevent a decrease in display degree while improving image quality, such as a bright device for stereoscopic image display; - In addition, a method of displaying a stereoscopic image quality in a stereoscopic image. _ Image polarized glasses; or improvement 22 201142358 [Embodiment] The present invention is explained in more detail by an embodiment according to the present invention and a non-invention of the present invention. However, the scope of the present invention is limited to the following examples. In the specification, the physical properties are determined by the method described below: 1. Phase difference film phase difference The phase difference of the film can be measured using a wavelength of 55 〇 nanometer or 589 ray. The phase difference can be determined by AxGsean (AxG_Hes)^ The sixteen Mueller matrix of the phase difference film (sixteenMuUerma(10)μ) is obtained by the manufacturer. The crosstalk ratio can be defined as the dark state and the bright state. The brightness ratio of the state. According to the type of the stereoscopic image device, various aspects of measuring the crosstalk ratio are known in the art. The crosstalk ratio in the case of using the polarized glasses type stereoscopic image display device J can be measured by the following method. The polarized glasses for viewing the stereoscopic image are disposed at the viewing position of the conventional stereoscopic image display device. In the foregoing, the 'traditional viewing point is located at 3/2 times the horizontal length of the device away from the center of the device. Polarization under this condition The position of the glasses, the traditional viewing point is located at the center of the device. The horizontal length may be the length of the device in the horizontal direction, and the stereoscopic image is viewed relative to the viewer. That is, the width direction of the device. In the above setting, in the state where the device displays the left eye image, a redundancy measuring instrument (SR-U2 spectrometer) is respectively disposed on the left eye of the polarized glasses and the back of the right eyeglass lens' Then measure the brightness of the back of the left lens and the brightness of the back of the right lens. Above, the brightness of the back of the left lens is the brightness of the bright state, 23 201142358 and the brightness of the back of the right lens is the brightness of the dark state. After the brightness measurement, calculate the brightness of the dark state. The ratio of the brightness relative to the bright state ([Brightness of Dark State] / [Brightness of Bright State]) may be referred to as the crosstalk ratio (YL) of the left eye. In addition, the crosstalk ratio (yr) of the right eye may be the same as described above. The method determines, in particular, that the brightness measured by the bright state and the dark state can be calculated in a state where the stereoscopic image display device displays the right eye image. In this case, the brightness of the back side of the right lens is the brightness of the bright state, and the brightness of the back side of the left lens is the brightness of the dark state. Further, the ratio ([brightness of brightness] / [brightness of bright state]) can be similarly referred to as crosstalk ratio (Yr). 3. Method of Identifying Crosstalk Ratio Based on Horizontal Viewing Crosstalk Ratio The horizontal viewing angle can be identified according to the following method. The method for identifying the crosstalk ratio is as described in item 2, and the polarized glasses for viewing the stereoscopic image are set at the conventional device viewing position, and then the crosstalk ratio (Yl and YR) is determined by the same method as the second item described above, while referring to the viewer. The viewing angle in the horizontal direction is changed by 5 degrees from 〇 to 80 degrees. Here, the viewing angle is a change in the baseline (0 degree) of the viewer's line of sight angle in the horizontal direction while referring to the viewer's line of sight angle when the viewer views the center of the device at the conventional viewing point. Further, the crosstalk ratio value of the above item 2 is measured at the viewing angle. 4. Method for identifying crosstalk luminance according to horizontal viewing angle In the method for measuring crosstalk ratio described in item 3, the polarized glasses for viewing stereoscopic images are placed at a conventional device viewing position, and then measured according to the same method as in the second item described above. The horizontal viewing angle of the crosstalk is bright, while referring to the viewer, the viewing angle in the horizontal direction is changed by 5 degrees from 〇 to 8 degrees. According to the horizontal viewing angle 24 201142358, the left eye crosstalk luminance (CRleft) is calculated by Equation 12, and the right eye crosstalk luminance (CRright) according to the horizontal viewing angle is calculated by Equation 13. [Formula 12] CRleft = Left-eye image light passes through the polarized glasses in the left-eye region of the luminance/left-eye crosstalk ratio (YL) [Equation 13] CRright = Right-eye image light passes through the polarized glasses right-eye region brightness/right-eye crosstalk Ratio (YR) example 1

A device was prepared which has the structure shown in Fig. 1 and includes a polarization control layer (Fig. 1 '15) ((λ / 2 + λ / 4 ) wavelength layer). In the polarization control layer (Fig. 1, 15) ((λ / 2 / λ / 4) wavelength layer), a / / 4 wavelength layer, with a slow axis and the polarization axis (Figure 1, 14) transmission axis formed 45 degrees And is positioned in the polarization control region of the right eye image light (Fig. 15, 15 feet); a λ/2 wavelength layer having a slow axis and a polarization plate (Fig. 14, 14) forming a transmission axis - 45 degrees And a; I /2 wavelength layer having a slow axis and a polarization plate (Fig. i, 14) forming a transmission axis of 45 degrees, which is positioned in the polarization control region of the left eye image light (Fig. 1 '15 L ). Then 'Using polarized glasses with right-eye and left-eye glasses (circularly polarized glasses), a polarizing film in the middle has a transmission axis and a transmission axis of the polarizing plate (Fig. 丨'4) to form 9G degrees, λ/4 wavelength The layer has a slow axis forming 45 degrees with the transmission axis of the polarizing plate (Fig. 1 '14), and a +C plate' is successively attached to the right lens; a polarizing film has a transmission axis and a polarizing plate '(4) transmission The axis is formed, the λ/4 wavelength layer has a slow axis and the transmission axis of the polarizing plate (1U '14) forms _45 degrees, and a +C 25 201142358 plate 'system is successively attached to the force μ, left 艮 1 brother The slice is caused to be viewed by the stereoscopic image display device. In Sheung Shui, pal - in the above-mentioned private, the crosstalk ratio of the left eye or the right eye is the measured 疋 'with the phase of the thickness of the plate attached to the left eye and the right eye, as shown in Figure 8. result. The +c plate is a normal liquid crystal type retardation film ”. The retardation film adopts a vertically aligned photocurable liquid crystal having a refraction (ΔN) of 〇·1. Fig. 8(a) represents the left eye of the foregoing example. Crosstalk ratio (YL), where the X axis represents the phase difference in the thickness direction of the +c plate (unit: nm), and the x axis represents the interference ratio (Cd/m2). In addition, Fig. 8(1) represents the right eye crosstalk ratio (Yr). Wherein the χ axis represents the phase difference in the thickness direction of the +c plate (unit: nm), and the γ axis represents the _scrambling ratio (Cd/m2). Example 2 A stereoscopic image display device and a polarized glasses are the same as in the example 1. Preparation 'Beyond the results of considering Example 1' The +C plate (liquid crystal type retardation film coated vertically aligned photocurable liquid crystal having a birefringence (?N) of 0.1' thickness of 1.7/zm) in the thickness direction The phase difference is 丨7〇nm and is attached to the right spectacle lens; the +C plate (liquid crystal type retardation film coated vertically aligned photocurable liquid crystal) has a birefringence (ΔΝ) of 0.1 and a thickness of 〇.9/ /m) The phase difference in the thickness direction is 90 nm and is attached to the left lens. Comparative Example 1 A stereoscopic image display device Polarized glasses were prepared in the same manner as in Example 2 except that the +C plate was not attached to the right eye and left eyeglasses. Experimental Example 1 26 201142358 In the apparatus of Example 2 and Comparative Example 1, the left eye image was rayd to the right. The crosstalk ratio of the eye image light is determined by the aforementioned method according to the horizontal viewing angle as shown in Fig. 9. Fig. 9(a) represents the left eye crosstalk ratio according to the horizontal viewing angle, wherein the X axis represents the horizontal viewing angle (unit··degree ), while the ¥ axis represents the crosstalk ratio (Cd/m2). Figure 9 (b) represents the right eye crosstalk ratio according to the horizontal viewing angle, where the X axis represents the horizontal viewing angle (unit: degree), and the ¥ axis represents crosstalk: 匕 ( Cd/m2). In each of the drawings, the broken line indicates the result of the comparative example, and the solid line indicates the result of the example 2. 'Experiment 2, in the process of using the example 2 and the comparative example!, the crosstalk brightness is according to the level The viewing angle is determined by the aforementioned method, as shown in Figure 丨〇(a), the X-axis represents the horizontal viewing angle (unit: degree), and the Y-axis represents the brightness (CR_). In Figure 10 (b), 'X The axis represents the horizontal viewing angle (unit: degree), while the Y axis represents the brightness CRright) In each of the drawings, the broken line indicates the result of Comparative Example 1 and the solid line indicates the result of Example 2. Example 3 ^ A stereoscopic image display device and polarized glasses are prepared by the same method as the example, except for the polarized glasses. In addition to the preparation of the (linearly polarized glasses), the W lens of the left lens, in which one of the polarizing films has a transmission and polarization plate (Fig. 1 '14), the transmission axis forms 9 degrees, and a +B plate in the plane direction The phase difference (RIN) has 140 nm, which is successively attached to the right spectacle lens; and a polarizing film has a transmission axis formed by the transmission axis and the polarizing plate (Fig. 14), 9 degrees, and a +B plate in the planar direction. The phase difference (Rin) has a thickness of 14 inches, and the system 27 201142358 successively attaches to the left eyeglass lens to cause the image to be viewed by the stereoscopic image display device. In the above process, the crosstalk ratio of the left eye or the right eye is measured by the above method as a result of the phase difference in the thickness direction of the +B plate attached to the left eye and the right eyeglass, as shown in Fig. n. For example, the +B plate is a cop (cyclic polymer) used as a +B plate. ^] (a) represents the left-eye crosstalk ratio (YL) where the X-axis represents the phase difference in the thickness direction of the +B plate (unit: nm), and the x-axis represents the crosstalk ratio (Cd/m2). Further, Fig. 11(b) represents a right-eye crosstalk ratio (Yr) in which the x-axis represents the phase difference in the thickness direction of the +B plate (unit: nm), and the γ-axis represents the crosstalk ratio (Cd/m2). Example 4: Stereoscopic image display device and polarized glasses system 'The same method as in Example 3, except for the result of considering Example 3, a +B plate ((7)p (cycloolefin poly)) is a difference film (thickness: 8〇))) The phase difference in the thickness direction is 24〇nm and the phase difference in the plane direction is my, attached to the right spectacle lens, and a +B plate (c〇p (cycloolefin polymer) retardation film ( Thickness: 0 "m)) The phase difference in the thickness direction is (4) (10) and the phase difference in the plane direction is 137.5 nm, which is attached to the left lens. Comparative Example 2 The stereoscopic image display device and the polarized glasses are the same as in Example 4. In addition to the fact that the +B plate is not attached to the right eye and the left eye lens, Experimental Example 3 28 201142358 In the apparatus using the example 4 and the comparative example 2, the crosstalk ratio between the left eye image light and the right eye image light is It is determined by the aforementioned method according to the horizontal viewing angle, and as shown in FIG. 12 (a) represents the left-eye crosstalk ratio according to the horizontal viewing angle, wherein the x-axis represents the horizontal viewing angle (unit: degree), and the Y-axis represents crosstalk: (Cd/m2) ° Figure 12 (1) represents the right eye contention ratio according to the horizontal viewing angle, where the X axis represents The table horizontal viewing angle (unit: degree), and the γ axis represents crosstalk $ (Cd/m2). In each of the drawings, the broken line indicates the result of Comparative Example 2, and the solid line indicates the result of Example 4. Experimental Example 4 In use In the apparatus of Example 4 and Comparative Example 2, the crosstalk luminance of the left-eye image light and the right-eye image light is determined by the aforementioned method according to the horizontal viewing angle, as described in Fig. 13. In Fig. 13 (a), the x-axis Represents the horizontal viewing angle (unit: degree), while the γ axis represents the brightness (CRieft). In Figure 13(b), the 'X axis represents the horizontal viewing angle (unit: degree), and the γ axis represents the brightness (CRright) » in each In the drawings, the broken line indicates the result of Comparative Example 2, and the solid line indicates the result of Example 4. Example 5 A device was prepared which has a structure as shown in the figure 'including a polarization control layer (Fig. 1, 15) (patterned λ /2 wavelength layer), one of which; the wavelength layer has a slow axis and the polarization axis of the polarizing plate (Fig. 14, 14) forms _45 degrees, and exists only in the polarization control region of the left eye image light (Fig., 15 ^, by attaching a phase difference with a plane direction to 14〇nmi+B, attached Polarization control layer front side. Then, using polarizing lens 29201142358 glasses (circular polarized glasses) with right eye and left eyeglasses, the polarizing film has a transmission axis and a transmission axis of the polarizing plate (Fig. 1, 14). And a λ/4 wavelength layer having a slow axis forming 45 degrees with the transmission axis of the polarizing plate (Fig. 14, 14), successively attached to the right lens piece '· and a polarizing film having a transmission axis and a polarizing plate (Fig. i, 14) The transmission axis forms 90 degrees, and a λ/4 wavelength layer has a slow axis forming a _45 degree with the transmission axis of the polarizing plate (Fig. 1, 14), which are successively attached to the left eyeglass. The image is viewed by being emitted by the stereoscopic image display device. In the above process, the crosstalk ratio of the left eye or the right eye is measured, as the phase difference in the direction of the thickness of the + seesaw attached to the front side of the polarization control layer changes, as shown in Fig. 14. Here, as a +B plate, a commonly used c〇p (cycloolefin polymer) is used as the +B plate. As shown in Fig. 4, the broken line represents the left eye crosstalk ratio () (Cd/m2), and the solid line represents the right eye crosstalk ratio (Yl) (Cd/m2), where the X axis represents the phase difference in the +B plate thickness direction ( Unit: χ丨〇〇nm ), and the Y axis represents the crosstalk ratio (Cd/m2). Example 6 A stereoscopic image display device and polarized glasses were prepared in the same manner as in Example 5 except that the results of Example 5 were considered, a +8 plate (c〇p (cycloolefin polymer) retardation film (thickness: 8 〇 &quot ;m)) The phase difference in the plane direction is 137.5 nm and the phase difference in the thickness direction is 21〇ηηι, which is attached to the front side of the polarization control layer in the device. Comparative Example 3 A stereoscopic image display device and polarized glasses were constructed in the same manner as in Example 6 except that the +B plate was not attached. 30 201142358 Experimental Example 5 In the process of using the apparatus of Example 6 and Comparative Example 3, the crosstalk ratio of the left-eye image light to the right-eye image light was measured by the aforementioned method according to the horizontal viewing angle, as described in Fig. 15. In Fig. 15 (a), the x-axis represents the horizontal viewing angle (unit: degree), and the γ-axis represents the left-eye crosstalk ratio (Yl) (Cd/m2). In Fig. 15(b), the x-axis represents the horizontal viewing angle (unit: degree), and the Y-axis represents the right-eye crosstalk ratio (YR) (Cd/m2). In each of the figures, the dashed line indicates the result of Comparative Example 3, and the solid line indicates the result of Example 6. Experimental Example 6 In the process of using the apparatus of Example 6 and Comparative Example 3, the crosstalk luminance of the left-eye image light and the right-eye image light was measured by the aforementioned method according to the horizontal viewing angle, as described in Fig. 16. In Fig. 16 (a), the x-axis represents the horizontal viewable angle (unit: degree), and the Y-axis represents the brightness (CR丨...). In Fig. 16 (1), the 'X axis represents the horizontal viewing angle (unit: degree), and the γ axis represents the brightness (CRnght). In the parent pattern, the dashed line indicates the result of Comparative Example 3, and the solid line indicates the result of Example 6. From the above, it can be seen that the present invention is highly practical in terms of its purpose, means and efficacy, which are different from the characteristics of the prior art. It is to be noted that the various embodiments described above are merely illustrative for ease of explanation, and the scope of the claims is intended to be limited by the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS 201142358 FIG. 1 is a cross-sectional view showing a description of a display device. Eye Image Figs. 2 and 3 are diagrams showing the arrangement of the right eye and the Lu generation area of the stereoscopic image display device. 2 and 5 are diagrams showing the arrangement of the right eye and left eye polarization control regions of the polarization control layer of the stereoscopic image display device. Fig. 6 is a diagram for explaining an optical filter of a stereoscopic image display device. Figure 7 is a diagram depicting polarized glasses for viewing a stereoscopic image. 8 to 16 are diagrams showing the circular form of the measurement result. [Description of main component symbols] 1 stereoscopic image display device 11 light source 13 image generation layer 16 phase difference film UR right eye image generation region 6 optical filter 12, 14 polarizing plate 15 polarization control layer 17 viewer UL left Eye image generation area AR Right eye image light polarization control area AL Left eye image light polarization control area LE Left eye RE Right eye 71L, 71R Polarizer 72L, 72R Phase difference film 73L, 73R / 4 wavelength Layer 32

Claims (1)

201142358 VII. Patent application scope: L A stereoscopic image display device comprising: an image display component, i /, a target capable of generating a right eye image light and a left eye image signal, and capable of retransmitting it to The viewer-square, and the retardation film 'has a phase difference in the thickness direction, and is arranged such that the image signal is transmitted by the image display member through the retardation film according to the thickness direction and then transmitted to the viewer side. 2. The stereoscopic image display device according to claim 1, wherein the retardation film is +B or + (: plate β 3. The stereoscopic image display device according to claim 2; , where +C plate conforms to Equation 6 or 7, and +Β plate conforms to Equation 8 to u: [Formula 6] YL or Yr = 0.0201X2 -0.0398X+0.0339 $ 0.5 [Formula 7] YL = 0.0192X2 -0.0763 X +0.0899 < 0.5 [Formula 8] Yr = (9.24χ1〇'7)χ2 -0.000236Χ +0.0288 < 0.5 [Formula 9] YL = (5.5xlO'7)X2 -0.000347X +0.067 < 0.5 [ Formula 1〇] Yr = (1·97χ1〇·6)χ2 -〇.〇〇〇616Χ +0.0644 < 0.5 [Formula 11] YL = (1.99χ1〇·6)χ2 -0.00125X +0.206 < 0.5 33 In 201142358, X of Equations 6 and 7 is the phase difference in the thickness direction of the +C plate, and X of Equations 8 to 11 is the phase difference in the thickness direction of the +B plate. 4. As described in Item 3 of the patent application. a stereoscopic image display device, wherein a phase difference between a right-eye image light and a left-eye image light passing through a +C plate region is in accordance with Formula 6; or a right-eye image light passes through a +C plate region The phase difference in the thickness direction, The phase difference between the thickness direction of the +C plate region and the light passing through the +C plate region of the left eye image is in accordance with the formula 7 ° 5. The stereoscopic image display device according to claim 3, wherein the right The phase difference between the thickness direction of the +B plate region of the eye image light is in accordance with Equation 8, and the phase difference of the left eye image light passing through the thickness direction of the region is in accordance with Formula 9; or the right eye image light The phase difference in the thickness direction of the passing region is in accordance with Equation 1 〇, and the phase difference in the thickness direction of the light passing through the region of the left eye is in accordance with Formula 1 J. 6. As described in the scope of the patent application. a stereoscopic image display device, wherein the image display component comprises: an image generating component that generates an image signal composed of a right eye image light and a left eye image light, and then transmits the image signal to the viewer side a polarization control layer disposed on a viewer side of the image generating component, and capable of controlling the image signal if the image signal is input therein, so that the right eye image light and the left eye image light are different from each other The polarization state of the light source, and the image control device of the invention, wherein the polarization control layer comprises a polarization control region of the right eye image light and a left 34 201142358 The polarization control area of the eye image light 'and also includes the /4 wavelength layer of the polarization control area of the right eye and left eye image light, and any of the right eye and left eye image light A /2 wavelength layer of the polarization control region. 8. The stereoscopic image display device according to claim 7, wherein the retardation film is a +C plate or a +B plate. 9. The stereoscopic image display device according to claim 8, wherein the phase difference of the +C plate in the thickness direction is 50 nm to 27 Å, and the phase difference of the +B plate in the thickness direction is 50. Nano to 350 nm. 10. The stereoscopic image display device of claim 6, wherein the polarization control layer comprises a polarization control region of a right eye image light and a polarization control region of a left eye image light and also includes The polarization control region of the right eye and left eye image light; (/4 wavelength layer, where the X/4 wavelength layer of the polarization control region of the right eye image light and the polarization control region of the left eye image light λ The /4 wavelength layer has optical axes different from each other. 11. The stereoscopic image display device according to the first aspect of the invention, wherein the retardation film is a +C plate. The stereoscopic image display device of the present invention, wherein the phase difference of the +C plate in the thickness direction is from 3 nanometers to 35 nanometers. The polarization control layer includes a polarization control region of a right eye image light and a polarization control region of a left eye image light, and also includes a λ/2 wavelength of only one of the polarization control regions of the right eye and the left eye image light. Layer 14_If the scope of patent application is 13 The stereoscopic image display device of the present invention, wherein the phase difference film is a + Β plate. 35 201142358 15. The stereoscopic image display device according to claim M, wherein the phase difference of the +B plate in the thickness direction is 50 奈Meter to 350 nm. 16. An optical filter for a stereoscopic image display device, comprising: a polarization control layer capable of controlling an image composed of a right eye image light and a left eye image light When the image signal is input, the right eye image light and the left eye image light have different polarization states and can be emitted; and a phase difference film is attached to the control layer side, so that the image signal is The optical filter of the stereoscopic image display device of claim 16, wherein the retardation film is a +C plate, which conforms to Equation 6 or 7, Or +B plate, which conforms to the following formulas 8 to 11: [Formula 6] 0.0201X2 - 0.0398X +0.0339 < 0.5 [Formula 7] 0.0192X2 -0.0763X +0.0899 < 0.5 [Formula 8] (9.24x10' 7) X2 - 0.000236X +0.0288 < 0.5 [Formula 9] (5.5x10'7) X2 -0.00034 7X +0.067 < 0.5 [Formula 10] (1.97χ 10'6)X2 -0.000616X +0.0644 < 0.5 [Formula 11] (1 .99x10'6)X2 -0.001 25Χ +0.206 < 0.5 201142358 Among the 'Formulas The X to X is the phase difference of the +C plate or the +B plate in the thickness direction. 18. A polarized glasses for viewing a stereoscopic image, comprising a right eyeglass lens and a left eyeglass lens, wherein each of the right eye lens and the left eyeglass lens comprises a retardation film having a phase difference in a thickness direction, and a Polarizing plate. 19. The polarized glasses for viewing a stereoscopic image according to claim 18, wherein the retardation film is a +C plate, which conforms to the formula 6 or 7' or +B plate, which conforms to the following formula 8 To 11: [Formula 6] 0.0201X2 -0.0398X +0.0339 < 0.5 [Formula 7] 0.0192X2 -0.0763X +0.0899 < 0.5 [Formula 8] (9.24x10'7)X2 -0.000236Χ +0.0288 < 0.5 [Formula 9] (5.5χ10'7)Χ2 -0.000347Χ +0.067 < 0.5 [Formula 10] (1.97χ10'6)χ2 -〇.〇〇〇616Χ +0.0644 < 0.5 [Formula 11] (1.99χ1〇 -6) χ2 _〇.〇〇ι25Χ +0.206 < 0.5 The X of Equations 6 to 11 is the phase difference of the +C plate or the + Β plate in the thickness direction. 20. The polarized glasses for viewing a stereoscopic image as described in claim 18, wherein the left and right ophthalmic lenses each further comprise a λ /4 wavelength layer. 37 201142358 2 1. Polarized glasses for viewing stereo images as described in claim 20 of the patent scope, wherein the absorption axes of the polarizing plates of the right eye and the left lens are horizontal to each other, and the right eye and the left The λ/4 wavelength layer of the spectacle lens is a mutually different optical axis; or the absorption axes of the polarizing plates of the right eye and the left ophthalmic lens are mutually different directions, and the λ/4 wavelength layer of the right eye and the left eye lens is Optical axes that are parallel to each other. 22. A method for improving the quality of a stereoscopic image display, wherein a stereoscopic image is displayed via an image display component, which is capable of generating an image signal composed of right-eye and left-eye image rays, respectively, and is respectively viewed by a viewer's right eye Viewing with the left eye and then transmitting it to the viewer, including the step of setting the retardation film, having a phase difference in the thickness direction, so that the image signal is emitted by the image display member 'through the phase difference g in the thickness direction, Then, it is transmitted to one of the viewers. 0 23. The method for improving the quality of the stereoscopic image display as described in the 22nd patent of the patent, wherein the phase money is +c board, which conforms to the formula..., or the +B board' It is in accordance with the following formula 8 to 丨]: [Formula 6] 0.0201X2 -0.0398X +0.0339 < 0.5 [Formula 7] 0.0192X2 -0.0763X +0.0899 < 0.5 [Formula 8] (9.24χ1〇'7)χ2 . 0.000236Χ +0.0288 < 0.5 [Formula 9] (5.5χ10*7)χ2 -0.000347Χ +0.067 < 0.5 [Formula 10] 38 201142358 (1.97x10'6)X2 -0.000616Χ +0.0644 < 0.5 [Formula 11 ] (1.99x10'6)X2 -0.00125Χ +0.206 < 0.5 where X of Equations 6 to 11 is the thickness of the +C plate The phase difference direction. 39