KR100745460B1 - A liquid crystal display apparatus for 3 dimensional image embodiment - Google Patents

Abstract

An LCD(Liquid Crystal Display) for implementation of a three-dimensional image is provided to minimize a color scattering effect caused by a difference in a refractive index and achieve a wide viewing angle for a three-dimensional image by disposing sub-pixels forming pixels for the left eye and pixels for the right eye in due consideration of a refractive index difference therebetween. A liquid crystal panel(110) includes a plurality of pixels(L) for the left eye having sub-pixels arranged in the order of R-G-B at a left side of a left-eye line and arranged in the order of B-G-R at a right sides of the left eye line with reference to the left eye line(102) corresponding to the left eye of an observer, and a plurality of pixels(R) for the right eye having sub-pixels arranged in the order of R-G-B at a left side of a right eye line and arranged in the order of B-G-R at a right side of the right eye line with reference to the right eye line corresponding to the right eye of the observer, wherein the pixels for the left eye and the pixels for the right eye are alternately arranged. A parallax barrier(120) is spaced apart from a front side of the liquid crystal panel, and includes transmissive areas(124) transmitting an image displayed by the liquid crystal panel, and blocking areas(122) each disposed between the tranmissive areas.

Description

A liquid crystal display apparatus for 3 dimensional image embodiment}

1 is a view for explaining a conventional liquid crystal display device for stereoscopic image implementation.

FIG. 2 is a plan view of the liquid crystal display panel of FIG. 1.

3 is a view for explaining a liquid crystal display device for implementing a stereoscopic image according to a first embodiment of the present invention.

4 is a plan view of the liquid crystal display panel of FIG. 3.

5 is a view for explaining a liquid crystal display device for implementing a stereoscopic image according to a second embodiment of the present invention.

6 is a plan view of the liquid crystal display panel of FIG. 5.

7 and 8 are views each showing a viewing area formed by the prior art and the present invention, respectively.

* Description of the symbols for the main parts of the drawings *

102, 202: left eye line 104, 204: right eye line

106, 206: center line 110, 210: liquid crystal display panel

120, 220: parallax barrier 122, 222: blocking area

124 and 224 transmissive region L for left eye pixels

R: Right eye pixel R: Red subpixel

G: green subpixel B: blue subpixel

The present invention relates to a liquid crystal display device for stereoscopic image implementation, and more particularly to a liquid crystal display device for stereoscopic image implementation to minimize the color dispersion effect to have a wide stereoscopic image viewing area.

In general, there are physiological and empirical factors in which a person feels a three-dimensional effect, and in three-dimensional image display technology, a three-dimensional effect of an object is generally determined by using a binocular parallax, which is the biggest factor that recognizes a three-dimensional effect at a short distance. Will feel.

As a method of viewing a stereoscopic image, there are largely a method of wearing glasses and a glasses-free method of not wearing glasses.

The way of wearing glasses is the anaglyph method using blue and red sunglasses on both eyes, the polarization method using polarized glasses with different polarization directions, and the time-divided screen is periodically repeated and synchronized with this cycle. There is a time-division method of wearing glasses with an electronic shutter. However, the method of wearing glasses has problems such as the inconvenience of wearing glasses and being disturbed in observing an object different from an image while wearing glasses. Therefore, in recent years, researches on how not to wear glasses have been actively conducted.

Representatively known as a glasses-free method that does not wear glasses, a lenticular lens plate having a lenticular lens plate arranged vertically in a cylindrical lens array on the front of the liquid crystal display panel, and a parallax barrier (on the front of the liquid crystal display panel) There is a parallax barrier method that installs a parallax barrier and separates left and right eye images using this parallax barrier. Recently, a 2D / 3D display device capable of displaying both planar images (2D) and 3D images (3D) has been developed.

1 is a view for explaining a conventional liquid crystal display device for stereoscopic image implementation.

Referring to FIG. 1, a conventional liquid crystal display device for stereoscopic image implementation includes a liquid crystal display panel 10 and a parallax barrier 20. The liquid crystal display panel 10 displays a 3D image. The parallax barrier 20 is formed by repeatedly blocking the blocking region 22 and the transmitting region 24.

When the 3D image is displayed on the liquid crystal display panel 10, the observer sees the image displayed on the liquid crystal display panel 10 through the transmission region 24 of the parallax barrier 20. The left and right eyes of the observer have the same transmission. Even through the area 24, different areas of the liquid crystal display panel 10 are seen. That is, the observer makes the left eye and the right eye see the image displayed on the pixels of the adjacent area through the transmission area 24 to feel the three-dimensional effect. As described above, the liquid crystal display panel 10 displays the left eye image on the left eye pixel L, the right eye image on the right eye pixel R, and the observer views the transmission region 24 of the parallax barrier 20. Through the left eye image and the right eye image will be seen at the same time.

Meanwhile, the LCD for stereoscopic image implementation of FIG. 1 may display a 2D image. When the 2D image is displayed on the liquid crystal display panel 10, the parallax barrier 20 is removed and the 2D image is displayed as a whole without distinguishing between the left eye pixel L and the right eye pixel R. 2D images can be viewed without distortion.

That is, when the parallax barrier 20 is implemented by using a liquid crystal display, the 2D image and the 3D image can be selectively implemented.

FIG. 2 is a plan view schematically illustrating the liquid crystal display panel of FIG. 1.

Referring to FIG. 2, the liquid crystal display panel 10 includes a plurality of left eye pixels L and right eye pixels R having subpixels of red (R), green (G), and blue (B). The left eye pixel L and the right eye pixel R are alternately arranged to form a matrix. Subpixels of each of the plurality of left eye pixels L and right eye pixels R are arranged in the order of the subpixels of red (R), green (G), and blue (B).

However, in the liquid crystal display device for implementing such a stereoscopic image, the light corresponding to the red (R), the green (G), and the blue (B) is the same as the transmission region 24 of the parallax barrier 20 of FIG. 1. When passing through the angle, the angle of refraction varies depending on the wavelength. That is, when the incident angles are the same, the shorter the wavelength, the larger the angle of refraction, the shorter the angle of refraction of blue (B) with the shortest wavelength and the shortest the angle of refraction of the red (R) with the longest wavelength. Accordingly, the light exiting the liquid crystal display panel 10 forms a viewing zone in different spaces according to the wavelength, and accordingly, the viewing region for observing a stereoscopic image without color dispersion is intended. There was a problem that is formed narrower than.

The technical problem to be achieved by the present invention is to arrange the sub-pixels constituting the left eye pixel and the right eye pixel in consideration of the refractive index difference for each wavelength to minimize the color dispersion effect resulting from the difference in refractive index to have a wide stereoscopic image viewing area The present invention provides a liquid crystal display device for image realization.

In order to solve the above technical problem, the liquid crystal display device for stereoscopic image implementation according to an embodiment of the present invention is arranged in the order of RGB on the left side of the left eye line with respect to the left eye line corresponding to the left eye of the observer, and on the right side of the left eye line. Is arranged in the order of RGB on the left side of the right eye line on the basis of a plurality of left eye pixels composed of subpixels arranged in the order of BGR, and the right eye line corresponding to the right eye of the observer, and BGR on the right side of the right eye line. A liquid crystal display panel including a plurality of right eye pixels including sub-pixels arranged in a plurality of pixels, wherein the left eye pixels and the right eye pixels are alternately arranged; And a parallax barrier disposed on the front surface of the liquid crystal display panel, wherein the parallax barrier includes a transmission region for transmitting the image displayed by the liquid crystal display panel and a blocking region disposed between the transmission regions to block the image.

Specific details of other embodiments are included in the detailed description and the accompanying drawings.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, only the present embodiments to make the disclosure of the present invention complete, and common knowledge in the art to which the present invention pertains. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

3 is a view for explaining a liquid crystal display device for implementing a stereoscopic image according to a first embodiment of the present invention, and FIG. 4 is a plan view of the liquid crystal display panel of FIG. 3.

3 and 4, the liquid crystal display device for implementing a stereoscopic image according to the first embodiment of the present invention includes a liquid crystal display panel 110 and a parallax barrier 120.

The liquid crystal display panel 110 includes a plurality of left eye pixels L and a plurality of right eye pixels R. FIG.

The plurality of left eye pixels L are arranged in the order of red (R)-green (G)-blue (B) on the left side of the left eye line 102 with respect to the left eye line 102, and the left eye line 102. On the right side, the subpixels are arranged in the order of blue (B)-green (G)-red (R). Here, the left eye line 102 is a line virtually displayed on the liquid crystal display panel 110 for easy explanation, and refers to a line vertically vertically drawn based on a position corresponding to the left eye of the viewer.

The plurality of right eye pixels R are arranged in the order of red (R)-green (G)-blue (B) on the left side of the right eye line 104 with respect to the right eye line 104, and the right eye line 104. On the right side, the subpixels are arranged in the order of blue (B)-green (G)-red (R). Here, the right eye line 104 is a line virtually displayed on the liquid crystal display panel 110 for easy explanation, and refers to a line vertically vertically drawn based on the position corresponding to the right eye of the observer.

Each of the plurality of left eye pixels L and right eye pixels R are alternately arranged, and a left eye image is displayed in the left eye pixel L, and a right eye image is displayed in the right eye pixel R. . The image is made by a combination of red (R), green (G), and blue (B), which are sub-pixels of the left eye pixel (L) and the right eye pixel (R). Red (R), green (G), and blue (B) are three elements of light, and when combined, they can produce many different colors. For example, a combination of red (R) and green (G) can be used to make yellow, a combination of red (R) and blue (B) can produce red and purple, and blue (B) and green (G). You can make cyan by using the combination of white and white by using the combination of red (R) and green (G) and blue (B).

The parallax barrier 120 is spaced apart from the front surface of the liquid crystal display panel 110 and includes a transmission region 124 and a blocking region 122.

The transmission region 124 transmits an image displayed by the liquid crystal display panel 110. That is, the left eye image displayed by the plurality of left eye pixels L formed on the liquid crystal display panel 110 and the right eye image displayed by the plurality of right eye pixels R formed on the liquid crystal display panel 110 are displayed. Permeate.

The blocking region 122 is disposed between the transmission regions 124, and blocks the image displayed by the liquid crystal display panel 110, as opposed to the transmission region 124. That is, the left eye image displayed by the plurality of left eye pixels L formed on the liquid crystal display panel 110 and the right eye image displayed by the plurality of right eye pixels R formed on the liquid crystal display panel 110 are displayed. Block it.

In the present exemplary embodiment, the transmissive region 124 of the parallax barrier 120 is present at the center line 106 of the liquid crystal display panel 110. In this case, the left eye pixel L and the right eye pixel R formed on the liquid crystal display panel 110 may have the left eye pixel L, the right eye pixel R, and the left eye from the left end of the liquid crystal display panel 110. It is arranged in the same order as the pixel L for the right eye pixel R.

Here, the center line 106 of the liquid crystal display panel 110 is a line virtually displayed for convenience of explanation, such as the left eye line 102 and the right eye line 104, and the left eye line 102 and the right eye line 104. The line is positioned between the lines and points vertically across the center of the liquid crystal display panel 110.

5 is a view for explaining a liquid crystal display device for implementing a stereoscopic image according to a second embodiment of the present invention, and FIG. 6 is a plan view of the liquid crystal display panel of FIG. 5.

5 and 6, the liquid crystal display device for implementing a stereoscopic image according to the second embodiment of the present invention includes a liquid crystal display panel 210 and a parallax barrier 220.

The liquid crystal display panel 210 includes a plurality of left eye pixels L and a plurality of right eye pixels R. FIG.

The parallax barrier 220 is composed of a transmission region 224 and a blocking region 222.

The liquid crystal display device for stereoscopic image implementation according to the second embodiment of the present invention configured as described above is similar to the liquid crystal display device for stereoscopic image implementation according to the first embodiment of the present invention.

However, there is only a slight difference in the arrangement relationship between the liquid crystal display panel 210 and the parallax barrier 220.

Therefore, a description of the configuration similar to the first embodiment of the present invention will be omitted.

In the present exemplary embodiment, the blocking region 222 of the parallax barrier 220 is present at the center line 106 of the liquid crystal display panel 110. In this case, the left eye pixel L and the right eye pixel R formed on the liquid crystal display panel 110 may include the right eye pixel R, the left eye pixel L, and the right eye from the left end of the liquid crystal display panel 110. The pixels R are arranged in the same order as the pixels L for the left eye.

Here, the center line 106 of the liquid crystal display panel 110 is a line virtually displayed for convenience of explanation, such as the left eye line 102 and the right eye line 104, and the left eye line 102 and the right eye line 104. The line is positioned between the lines and points vertically across the center of the liquid crystal display panel 110.

For reference, the liquid crystal display panel 110 and the parallax barrier 120 may be implemented as liquid crystal panels. As described above, when the parallax barrier 120 is implemented as a liquid crystal panel, a two-dimensional image as well as a three-dimensional image may be displayed by turning on / off the liquid crystal panel.

As a result, in the liquid crystal display device for implementing the stereoscopic image according to the first and second embodiments of the present invention, each of the plurality of left eye pixels L and right eye pixels R provided in the liquid crystal display panels 110 and 210, respectively. The subpixels R, G, and B are arranged in consideration of the difference in refractive index for each wavelength. That is, the subpixels of each of the plurality of left eye pixels L included in the liquid crystal display panels 110 and 210 are arranged near the left eye lines 102 and 202 in the order of shorter wavelengths, and the liquid crystal display panels 110 and 210 are arranged in the subpixels. The sub-pixels of each of the plurality of right eye pixels R included in the N are arranged near the right eye lines 104 and 204 in the order of the shortest wavelengths.

7 and 8 are views illustrating a viewing area formed by the prior art and the present invention, respectively, and FIG. 7 illustrates a case where the subpixel B is located far from the center of the eye, and FIG. The subpixel R is located at the far side from the center.

First, referring to FIG. 7, light from subpixel B passes through parallax barrier 120 to reach section b, and light from subpixel R passes through parallax barrier 120 to reach section r. Done. At this time, when the position of the observer's eye is outside of the section where the two lights overlap each other, that is, the section A and the section b and r overlap, the eye of the observer's eye is missing any color of subpixels R, G, and B. You see an unclean image.

Therefore, in this conventional case, the space occupied by the b section and the r section is widened, so that a certain color of the right eye pixel is mixed in the neighboring eyes (here, the left eye).

However, as shown in FIG. 8, when only the arrangement of the subpixels is changed from BGR to RGB under the same conditions as in FIG. 7, the light of the subpixel R passing through the parallax barrier 120 becomes the subpixel B at the same position. The angle of bending less than that of the light (see FIG. 7) is reduced so that the r 'section reaching this light is slightly shifted to the left side than the b section of FIG. 7, and the light of the subpixel B passing through the parallax barrier 120 is the same. Since there is more refraction than the subpixel R at the position (see FIG. 7), the section b ′ which this light reaches is shifted slightly to the right side than the section r of FIG. 7.

As a result, the space A 'where the two sections (r' section, b 'section) overlap is widened, thereby increasing the space that the viewer can watch without color change. In addition, since the total space occupied by the r 'and b' sections is rather reduced, the probability of light mixing in neighboring eyes (here, the left eye) is also reduced.

As described above, in the liquid crystal display device for implementing the stereoscopic image according to the first and second embodiments of the present invention, the sub-pixels of the pixel for the left eye and the pixel for the right eye are arranged according to the difference in refractive index for each wavelength, thereby resulting in color dispersion resulting from the difference in refractive index. Minimize the effect to have a wide viewing area.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings and tables, the present invention is not limited to the above embodiments, but may be manufactured in various forms, and common knowledge in the art to which the present invention pertains. Those skilled in the art can understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

According to the liquid crystal display device for stereoscopic image implementation according to an embodiment of the present invention, the sub-pixels constituting the left eye pixel and the right eye pixel are arranged in consideration of the refractive index difference for each wavelength, thereby minimizing color dispersion effect resulting from the difference in refractive index. Have a video viewing area.

Claims (6)

A plurality of left eye pixels including subpixels arranged on the left side of the left eye line corresponding to the left eye line corresponding to the left eye of the observer in the order of RGB, and on the right side of the left eye line in the order of BGR; The left eye includes a plurality of right eye pixels including subpixels arranged in the order of RGB on the left side of the right eye line based on the right eye line corresponding to the right eye, and arranged in the order of BGR on the right side of the right eye line. A liquid crystal display panel in which pixels for pixels and pixels for right eyes are alternately arranged; And A parallax barrier disposed on a front surface of the liquid crystal display panel, the transmission region configured to transmit an image displayed by the liquid crystal display panel, and a blocking region disposed between the transmission regions to block the image. Liquid crystal display for stereoscopic image implementation. The method of claim 1, When the transmissive region exists at a position where the center line of the liquid crystal display panel and the parallax barrier face each other, the left eye pixel and the right eye pixel of the liquid crystal display panel are arranged for the left eye from the left end of the liquid crystal display panel. A liquid crystal display device for stereoscopic image display, which is arranged in the order of pixels and pixels for the right eye. The method of claim 1, When the blocking region exists at a position where the center line of the liquid crystal display panel and the parallax barrier face each other, the left eye pixel and the right eye pixel of the liquid crystal display panel are used for the right eye from the left end of the liquid crystal display panel. A liquid crystal display device for stereoscopic image display, which is arranged in the order of pixels and pixels for left eye. A plurality of left eye pixels including sub-pixels arranged in the order of shorter wavelengths based on the left eye line corresponding to the left eye of the observer, and a shorter wavelength based on the right eye line corresponding to the right eye of the observer. A liquid crystal display panel including a plurality of right eye pixels including sub-pixels arranged near the right eye line, wherein the left eye pixels and the right eye pixels are alternately arranged; And A parallax barrier disposed on a front surface of the liquid crystal display panel, the transmission region configured to transmit an image displayed by the liquid crystal display panel, and a blocking region disposed between the transmission regions to block the image. Liquid crystal display for stereoscopic image implementation. The method of claim 4, wherein When the transmissive region exists at a position where the center line of the liquid crystal display panel and the parallax barrier face each other, the left eye pixel and the right eye pixel of the liquid crystal display panel are arranged for the left eye from the left end of the liquid crystal display panel. A liquid crystal display device for stereoscopic image display, which is arranged in the order of pixels and pixels for the right eye. The method of claim 4, wherein When the blocking region exists at a position where the center line of the liquid crystal display panel and the parallax barrier face each other, the left eye pixel and the right eye pixel of the liquid crystal display panel are used for the right eye from the left end of the liquid crystal display panel. A liquid crystal display device for stereoscopic image display, which is arranged in the order of pixels and pixels for the left eye.

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