KR200321863Y1 - Apparatus for displaying stereoscopic image - Google Patents

Abstract

The present invention relates to a three-dimensional image display device, when a parallax barrier mask having a predetermined period of slits in a horizontal or vertical direction in front of a portable display device (mobile phone, PDA terminal, etc.) at a suitable distance, the mask By the slits of the three-dimensional image can be seen, by removing the mask is characterized in that the removable 3D implemented stereoscopic display device designed to view the normal screen.

Here, a picture of the right eye is seen in an odd pixel column in the horizontal direction of the stereoscopic image display device, and a picture of the left eye is shown in the even pixel column, and then one vertical array slit is provided for each two pixel columns in the horizontal direction. When looking through a mask manufactured by matching, the observer's left eye can see even-numbered pixel columns, and the right eye can see odd-numbered pixel columns.

In addition, by detaching the precisely manufactured parallax barrier mask, it is characterized in that it is designed to selectively and easily view the general image and stereoscopic image.

Description

Stereoscopic Display Device {Apparatus for displaying stereoscopic image}

The present invention relates to a stereoscopic image display apparatus, and more particularly, to a stereoscopic image display apparatus that can view a stereoscopic image by attaching a parallax barrier mask having a certain period of slits at a predetermined distance.

There are physiological and empirical factors in which a person feels a three-dimensional effect, and in 3D image display technology, the three-dimensional effect of an object is generally sensed by using a binocular parallax, which is the biggest factor that recognizes a three-dimensional effect at a short distance. .

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 inconvenience of wearing glasses and trouble in observing an object other than an image while wearing glasses.

Therefore, in recent years, researches on how not to wear glasses have been actively conducted.

Representative examples of the non-glasses that do not wear glasses include a lenticular method in which a lenticular lens plate in which a cylindrical lens array is arranged vertically is installed in front of the image panel, and a parallax barrier method. .

Here, the parallax barrier method will be described in more detail with reference to FIG. 1.

In the parallax barrier method, as shown in FIG. 1, a mask 11 formed by repeatedly arranging the lattice pattern 11-1 and the transparent slit 11-2 is disposed on one front surface of the image panel 13. . In addition, a backlight light source 15 is disposed on the front surface of the other side of the image panel 13. The mask 11 includes a lattice pattern 11-1 for forming an opaque region and a transparent slit 11-2 for forming a transparent region. The image panel 13 is composed of a right eye correspondence pixel 13-1 seen by the right eye and a left eye correspondence pixel 13-2 shown by the left eye.

The observer 10 sees an image displayed on the image panel 13 through the transparent slit 11-2 of the mask 11, and the left and right eyes of the observer 10 have the same transparent slit 11-2. Even through the display, different regions of the image panel 13 are viewed. The parallax barrier method uses this principle, and the left and right eyes see the image displayed on the pixels of the adjacent area through the transparent slit 11-2, so that they feel three-dimensional. This is because the distance VD from the left and right eyes to the image panel 13, the distance T between the mask 11 and the image panel 13, the grid pattern 11-1 and the transparent slit 11-2. The pitch P, the right eye-corresponding pixel 13-1 and the left eye-corresponding pixel 13-2 make it possible to feel a three-dimensional feeling. At this time, in the pitch P of the grating pattern 11-1 and the transparent slit 11-2, the ratio of the grating pattern 11-1 is between 1/2 and 2/3 of the pitch P. It is preferable that the transparent slit 11-2 has a ratio between 1/3 and 1/2 of the pitch P excluding the region of the grid pattern 11-1.

In this way, the left eye sees the left eye correspondence pixel 13-2 on the image panel 13, and the right eye sees the right eye correspondence pixel 13-1 on the image panel 13. Therefore, although not shown, an image processor (not shown) displays an image corresponding to the left eye and the right eye on each corresponding pixel of the image panel 13.

However, in the parallax barrier method, when the mask is fixed to the front of the image panel, it becomes difficult to watch the general image. However, since the mask must be removed to view the general image, the necessity of detaching the mask has emerged. .

Therefore, an object of the present invention is to enable the detachable parallax barrier mask in front of a portable display device (mobile phone, PDA terminal, etc.), so that the stereoscopic image can be selected and viewed as needed. An image display apparatus is provided.

1 is a conceptual diagram illustrating a parallax barrier scheme;

2 is a configuration and enlarged view according to an embodiment of the present invention;

3 is a cross-sectional view of the mask of the present invention,

4 is a configuration diagram according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: observer 11: mask

11-1: Grid Pattern 11-2: Transparent Slit

11-3: film base 11-4: transparent adhesive

11-5: transparent substrate 13: image panel

13-1: Right eye correspondence pixel 13-2: Left eye correspondence pixel

15: backlight light source 21: mobile phone

23: stereoscopic image assembly

The stereoscopic image display device of the present invention for achieving the above object of the present invention, a mask having a predetermined period of slits in the horizontal and vertical directions in front of the stereoscopic image display device, respectively, at an appropriate distance, wherein the stereoscopic In the horizontal direction of the video display device, the right eye is shown in the odd pixel columns, and the left eye is shown in the even pixel columns, and one vertical array slit column is provided for each two pixel columns in the horizontal direction. When viewed through a mask made by making a mask, the observer's left eye can see even-numbered pixel columns, and the right eye can see an odd-numbered pixel strings.

Preferably, a backlight light source is formed in the image panel, and the mask uses a parallax barrier mask having a pattern formed by a lattice pattern and a transparent portion. The mask is detachable so that regular and stereoscopic images can be viewed selectively.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

As shown in FIG. 1, the mask 11 is installed at a predetermined distance T in front of the image panel 13, and the transparent slits 11-2 are disposed two pixels 13 of the image panel 13. -1, 13-2) so as to be located in the middle boundary. Accordingly, the image of the pixels 13-1 and 13-2 of the image panel 13 through the transparent slit 11-2 is viewed at the position of the VD, and the picture corresponding to the left and right eyes of the observer is the image panel ( 13), the viewer can see the stereoscopic image.

The pitch of the mask 11 at this time can be calculated | required by the following formula.

Pitch: P = 2S (VD-T) / VD

Where P is the mask pitch in the horizontal direction, S is the pitch of the pixels 13-1 and 13-2 in the horizontal direction, VD is the distance from the pixels 13-1 and 13-2 to the viewer, and T is the pixel. (Distance from 13-1, 13-2) to the mask 11)

Here, the size and quantity of the slits may be changed and manufactured according to the model of the product for optimization of stereoscopic image implementation.

2 is a configuration diagram for explaining the configuration of the present invention.

As shown in an enlarged side view of the display device of the mobile phone 21 shown in FIG. 2, the display device is composed of a stereoscopic image assembly 23, which is schematically provided with a protective window 23-1 and a protective cover. The outside is formed by the case 23-2, and a mask 11, an image panel 13, and a backlight light source 15 are embedded therein. Here, the insertion groove (H) in which the parallax barrier mask (11) is detachable is made on the side of the protective case (23-2), and the position of the insertion groove (H) is the image panel (13) on which the screen appears. That is, it is installed between the LCD and the EL element and the protective window 23-1, and designed and manufactured so that the parallax barrier mask 11 can be detachably and smoothly.

3 is a cross-sectional view of the parallax barrier mask used in the present invention.

As shown in FIG. 3, the total thickness of the film base 11-3 and the lattice pattern 11-1 is about 175 to 400 microns, and the material of the film base 11-3 is polyethylene terephthalate (PET). It is used a lot, laminating with the transparent substrate (11-5) by using a transparent adhesive (11-4), the transparent adhesive (11-4) to be used for the optical use must choose a special material that does not occur scattering For the transparent substrate 11-5, it is suitable to use polycarbonate (PC) of about 200 to 500 microns.

Here, since the mask 11 has to pass light except for the lattice pattern 11-1, a transparent material is used as a whole. For example, a resin film, glass, ceramic, or the like may be used. As the transparent adhesive 11-4, 3M's Model 8141 (Optically clear adhesive) or Nippon-Nitto Co., Ltd. is appropriately used. The lattice pattern 11-1 may be separately formed on the film base 11-3, and the transparent adhesive 11-4 may be used only for the purpose of adhering the transparent substrate 11-5 to it. The sputtering method and the vacuum evaporation method, which are conventional pattern forming processes used in the semiconductor process, are used, or a printing method, a photolithography method, or the like is used.

4 is a block diagram of another embodiment of the present invention.

As shown in FIG. 4, when the mobile phone 21 is used horizontally (when using the mobile phone lying down), a mask 11 ′ in which the grid pattern 11-1 is formed horizontally may be used. It can be seen that the direction of the lattice pattern 11-1 is manufactured to be different by 90 ° as compared with.

As described above, the stereoscopic image display apparatus according to the present invention, by detaching the parallax barrier mask can easily implement a general image and stereoscopic image, compared to other stereoscopic image implementation method, because it is possible to use a simple and inexpensive mask It can greatly contribute to the spread of the stereoscopic image display apparatus capable of stereoscopic images. The present invention is not limited to the above-described embodiment, and it will be apparent that many modifications are possible by those skilled in the art within the technical idea of the present invention.

Claims (8)

In the stereoscopic image display apparatus for displaying the image displayed by the pixels (13-1, 13-2) in stereoscopic image by binocular parallax, An image panel 13 displaying an image by the pixels 13-1 and 13-2; Including a stereoscopic image assembly 23 disposed in front of the display surface of the image panel 13, a mask 11 having a plurality of grid patterns (11-1) spaced at regular intervals, arranged periodically Stereoscopic display device, characterized in that made. The stereoscopic image display apparatus according to claim 1, wherein the mask (11) is detachable by sliding forward of the image panel (13) through an insertion groove (H) formed in the stereoscopic image assembly (23). The stereoscopic image display apparatus according to claim 1, wherein the pitch (P) between the grid patterns (11-1) of the mask (11) is 2S (VD-T) / VD. Where P is the mask pitch in the horizontal direction, S is the pitch of the pixels 13-1 and 13-2 in the horizontal direction, the distance from the VD pixels 13-1 and 13-2 to the viewer, and T is the pixel ( 13-1, 13-2 to the distance from the mask 11) According to claim 1, wherein the mask 11 is a film base (11-3) layer, a lattice pattern (11-1) layer, a transparent adhesive agent (11-4) layer, and a transparent substrate (11-5) layer sequentially Three-dimensional image display device characterized in that the stacking made. The film base of claim 4, wherein any one selected from polycarbonate, glass, and ceramic having a thickness in the range of 200 μm to 500 μm is used as the transparent substrate 11-5. 11-3) and the total thickness of the lattice pattern 11-1 has a value in the range of 175㎛ ~ 400㎛, the transparent adhesive 11-4 is a three-dimensional image display device, characterized in that the adhesive used for optical . The 3D image display apparatus according to claim 1, wherein the grid pattern (11-1) uses an opaque material. The method of claim 1, wherein the three-dimensional image assembly 23, A protective case 23-2 for forming a side surface with an insertion groove H for inserting the mask 11; A backlight light source 15 formed on an inner surface of the protective case 23-2; An image panel 13 formed on the backlight light source 15; A mask 11 spaced apart from the image panel 13 and slide-inserted and detached through the insertion groove H, and A protective window 23-1 formed on the mask 11 and spaced apart from the mask 11. Three-dimensional image display device comprising a. 8. The stereoscopic image display apparatus according to any one of claims 1 to 7, wherein the stereoscopic image display apparatus is a display screen of an information communication device.