TWI574545B - Three dimension image displayer - Google Patents

Description

Stereoscopic image display

The invention relates to a stereoscopic image display screen, in particular to a stereoscopic image display screen which can directly set a stereoscopic grating on a polarizer.

With the advancement of technology, the display technology of three-dimensional (3D) stereoscopic images has developed rapidly and has gradually penetrated into life. In general, since the left and right eyes of the human are at a distance of about 6.5 cm from each other, there is binocular parallax, and the 3D stereoscopic image display device is designed based on the basis of the binocular parallax, so that the left eye of the user is only viewed. The image to the left eye is only visible to the right eye. Therefore, because of the difference in position between the left and right eyes, the images seen by the two eyes have different images with slight differences. This difference in the position of the eye caused by the difference between the images seen by the left and right eyes is called binocular parallax.

In order to increase the diversification of applications and obtain more natural 3D stereoscopic images, in recent years, emphasis has been placed on developing a naked-eye three-dimensional (3D) stereoscopic display device that can view stereoscopic images without wearing any special instruments. The optical technologies used in the naked-eye three-dimensional (3D) stereoscopic display device are mainly "column lens" and "parallax barrier". The basic principle of the "lenticular lens" technology is mainly to use the principle of convex lens refraction, while splitting the image to the left and right eyes to achieve a three-dimensional effect. The "parallax barrier" uses the nature of the linear propagation of light to transmit a multi-view image through a parallax barrier consisting of a series of fine slits, which are then incident on both eyes to produce stereoscopic vision.

However, the conventional naked-eye three-dimensional (3D) stereoscopic display device mostly uses a glass material as a base material of a three-dimensional film in a stereoscopic display device, and if a three-dimensional film based on a glass material is used, the finished product has a certain structural thickness. (about 0.5 mm to 3 The thickness between the millimeters) is unsatisfactory for the demand for light and thin electronic products.

In addition, since the conventional three-dimensional film uses a glass substrate as a material of the stereoscopic display device, if it is to be directly applied to a terminal product such as a mobile phone or a tablet computer, it is inevitably required to be modified due to the influence of the structural thickness thereof. The outer casing of the end product increases the cost and affects the completion time of the product development design. Moreover, when a glass material is used as a substrate, the manufacturing cost thereof also increases.

Therefore, how to reduce the overall thickness of the stereoscopic image display screen has become an important subject to be solved by those skilled in the art.

In view of the above problems, the present invention provides a stereoscopic image display screen, which can directly set a thin film type stereoscopic grating on a polarizing plate, so that the thickness of the stereoscopic image display screen can be reduced, so that it can be directly applied to existing mobile phones and tablet computers. Such end products do not need to modify the outer casing of the end product while reducing manufacturing costs.

In order to achieve the above object, an embodiment of the present invention provides a stereoscopic image display screen including a backlight module, a liquid crystal display module, and a stereoscopic film. The liquid crystal display module is disposed on the backlight module, and the liquid crystal display module has a polarizer. The three-dimensional film has a three-dimensional grating disposed directly on the polarizer, and the polarizer has a thickness of between 0.015 mm and 0.25 mm.

Another embodiment of the present invention provides a stereoscopic image display screen including a backlight module, a liquid crystal display module, and a stereoscopic film. The liquid crystal display module is disposed on the backlight module, and the liquid crystal display module has a polarizer. The three-dimensional film has a three-dimensional grating disposed directly on the polarizer, and the polarizer has a thickness of between 0.015 mm and 0.25 mm.

The beneficial effects of the present invention may be that the stereoscopic image display screen provided by the embodiment of the present invention is mainly provided that the stereoscopic grating can be directly disposed on the polarizer, so that the thickness of the stereoscopic image display can be reduced, so that the direct application can be directly applied to the existing hand End products such as machines and tablets, without the need to modify the outer casing mold of the end product, while reducing manufacturing costs.

For a better understanding of the features and technical aspects of the present invention, reference should be made to the accompanying drawings.

D‧‧‧3D image display

1‧‧‧Backlight module

2‧‧‧LCD module

20‧‧‧ polarizer

201‧‧‧ upper surface

202‧‧‧lower surface

4‧‧‧Three-dimensional film

40‧‧‧Stereo grating

5‧‧‧Touch panel

6‧‧‧ air layer

8‧‧‧Second optical adhesive

1 is a perspective exploded view of a first embodiment of a stereoscopic image display screen of the present invention.

2 is a schematic perspective view of a first embodiment of a stereoscopic image display screen of the present invention.

3 is another schematic perspective view of the first embodiment of the stereoscopic image display screen of the present invention.

4 is a perspective exploded view of a second embodiment of a stereoscopic image display screen of the present invention.

FIG. 5 is a schematic perspective view of a third embodiment of a stereoscopic image display screen according to the present invention.

FIG. 6 is another schematic perspective view of a second embodiment of a stereoscopic image display screen according to the present invention.

The embodiments of the "stereoscopic image display" disclosed in the present invention are described below by way of specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in the present specification. The present invention may be embodied or applied in various other specific embodiments, and various modifications and changes can be made without departing from the spirit and scope of the invention. Further, the drawings of the present invention are merely illustrative, and are not depicted in actual dimensions, that is, the actual dimensions of the related structures are not reflected, which will be described first. The following embodiments are intended to further explain the related art of the present invention, but are not intended to limit the technical scope of the present invention.

[First Embodiment]

First, please refer to FIG. 1 to FIG. 3 simultaneously, FIG. 1 is a first embodiment of the present invention. FIG. 2 is a perspective view of a first embodiment of the present invention, and FIG. 3 is a perspective view of another embodiment of the present invention. FIG. The first embodiment of the present invention provides a stereoscopic image display D, which includes a backlight module 1, a liquid crystal display module 2, a stereoscopic film 4, and a touch panel 5 (for example, a touch ITO transparent conductive film or It is protective glass). In the first embodiment of the present invention, the liquid crystal display module 2 is disposed on the backlight module 1. The liquid crystal display module 2 has a polarizer 20 (for example, an upper polarizer or a lower polarizer), and the stereo film 4 can be directly disposed. (The direct setting refers to directly forming thereon, and there is no other intermediate substance in the middle, such as an adhesive) on the polarizer 20 of the liquid crystal display module 2, or through an optical adhesive (not shown). It is disposed on the polarizer 20 of the liquid crystal display module 2. For example, since the liquid crystal display module 2 does not emit light by itself, the function of the backlight module 1 is to supply a sufficient light source with uniform brightness and uniform distribution, so that the liquid crystal display module 2 can normally display images, so the liquid crystal display module 2 The displayed image can be projected through the stereoscopic film 4 via the light source provided by the backlight module 1. Therefore, the stereoscopic image display D can be provided with a stereoscopic image display function, and the touch panel 5 can have the stereoscopic image display D having a touch function, wherein the touch panel 5 can be a capacitor Touch panel, resistive touch panel, optical touch panel, protective glass, or sonic touch panel.

Referring to FIG. 1 , the three-dimensional film 4 can be directly disposed on the polarizer 20 of the liquid crystal display module 2 (after that, the polarizer 20 having the three-dimensional film 4 can be disposed on the liquid crystal display through an optical adhesive (not shown). The module 2) is disposed on the polarizer 20 of the liquid crystal display module 2 through an optical adhesive (not shown). For example, the optical adhesive 3 can use optically clear Resin (OCR). A light-transmitting optical adhesive 3 such as Liquid Optically Clear Adhesive (LOCA) or Optically Clear Adhesive (OCA). The thickness of the optical adhesive 3 may be between 0.01 mm and 0.3 mm, preferably between 0.01 mm and 0.22 mm. In other words, the characteristics of the optical adhesive 3 can be used to not only bond the three-dimensional film 4 and the liquid crystal display module 2 to each other, but also to The adjustment of the optical focal length, the refractive index, or the curvature can be performed by adjusting parameters such as the thickness or material of the optical adhesive 3, so that the stereoscopic image displayed by the stereoscopic film 4 can have a better stereoscopic effect.

2 and FIG. 3, in the first embodiment of the present invention, the three-dimensional film 4 can be disposed directly on the polarizer 20 or through an optical adhesive (not shown). The stereo grating 40 on the polarizer 20. For example, the stereo grating 40 may be disposed on the upper surface 201 of the polarizer 20 as shown in FIG. 2, or may be disposed on the lower surface 202 of the polarizer 20 as shown in FIG. 3 to adjust the curvature and the focal length. The thickness of the polarizer 20 is between 0.015 mm and 0.25 mm. For example, the polarizer 20 may be a polymer material, for example, polyethylene terephthalate (PET), polyethylene (PE) or polychlorine having a high light transmissive plastic thin material. As the substrate of the polarizer 20, PolyVinyl Chloride (PVC) or the like may have a transmittance of about 70% to 95%, and an optical refractive index of 1.4 to 1.6. The three-dimensional grating 40 can be disposed on the polarizer 20 by printing, coating, or semiconductor processing, for example, a printing method such as 200 dpi (Dots Per Inch) or a high precision printing method of 1200 dpi to 2400 dpi, or The three-dimensional grating 40 is printed onto the polarizer 20 by continuous printing or single-chip printing. Alternatively, the pattern of the three-dimensional grating 40 is directly formed on the polarizer 20 by exposure development or a method of manufacturing the plating film.

Further, the touch panel 5 can be disposed above the three-dimensional film 4 such that an air layer 6 is formed between the three-dimensional film 4 and the touch panel 5. In the first embodiment of the present invention, a frame (not shown) around the stereoscopic image display D is provided with a predetermined distance between the touch panel 5 and the three-dimensional film 4 to accommodate the air layer 6.

The stereoscopic image display D provided by the first embodiment of the present invention can be directly disposed on the polarizer 20 by the stereoscopic grating 40 of the stereoscopic film 4, so that the overall thickness of the stereoscopic image display D can be reduced. It is applied to existing mobile phone, tablet, and other terminal products without modifying the outer casing mold of the terminal product. Reduce manufacturing costs.

[Second embodiment]

First, please refer to FIG. 4 to FIG. 6. FIG. 4 is a perspective exploded view of a second embodiment of the present invention, FIG. 5 is a schematic view of a second embodiment of the present invention, and FIG. Another three-dimensional combination schematic of the embodiment. A second embodiment of the present invention provides a stereoscopic image display screen D, which includes a backlight module 1, a liquid crystal display module 2, a stereoscopic film 4, and a touch panel 5. 2 and FIG. 4, the biggest difference between the second embodiment of the present invention and the first embodiment is that, in the second embodiment, the touch panel 5 is disposed through a second optical adhesive 8 to be disposed on the second embodiment. On the solid grating 40 of the three-dimensional film 4.

Referring to FIG. 4, in the second embodiment of the present invention, the liquid crystal display module 2 is disposed on the backlight module 1. The liquid crystal display module 2 has a polarizer 20, and the stereoscopic film 4 can be directly disposed on the liquid crystal. The polarizer 20 of the display module 2 is mounted (the polarizer 20 having the three-dimensional film 4 can be disposed on the liquid crystal display module 2 through the first optical adhesive (not shown)) or through a first optical adhesive. A body (not shown) is provided on the polarizer 20 of the liquid crystal display module 2. For example, since the liquid crystal display module 2 does not emit light by itself, the function of the backlight module 1 is to supply a sufficient light source with uniform brightness and uniform distribution, so that the liquid crystal display module 2 can normally display images, so the liquid crystal display module 2 The displayed image is projected through the stereoscopic film 4 via the light source provided by the backlight module 1. Thereby, the stereoscopic image display D can be provided with a stereoscopic image display function through the arrangement of the three-dimensional film 4, and the touch panel 5 can have the stereoscopic image display D having a touch function.

Next, please refer to FIG. 5 and FIG. 6. Referring to FIG. 5 and FIG. 6 , in the second embodiment of the present invention, the three-dimensional film 4 can be directly disposed on the polarizer 20 or through a first optical adhesive (not shown). The stereo grating 40 is disposed on the polarizer 20, wherein the polarizer 20 has a thickness of between 0.015 mm and 0.25 mm. For example, the stereo grating 40 may be disposed on the upper surface 201 of the polarizer 20 as shown in FIG. 5, or may be disposed on the lower surface 202 of the polarizer 20 as shown in FIG. 6 to adjust the curvature and the focal length. distance. It is worth mentioning that the polarizer 20 can be a polymer material, for example, polyethylene terephthalate (PET), polyethylene (PE) or a material having a high light transmissive plastic material can be used. Polyvinyl chloride (PVC) or the like as a substrate of the polarizer 20 may have a transmittance of about 70% to 95%, and an optical refractive index of between 1.4 and 1.6. The three-dimensional grating 40 can be disposed on the polarizer 20 by a printing or semiconductor process. For example, a printing method such as 200 dpi (Dots Per Inch) or higher, for example, a high-precision printing method of 1200 dpi to 2400 dpi, can be used to print the stereo grating 40 onto the polarizer 20 by continuous printing or single-piece printing, or The pattern or pattern of the solid grating 40 can be formed directly on the polarizer 20 by a manufacturing method of exposure development.

Further, referring to FIG. 4 , the touch panel 5 can also be disposed on the stereo grating 40 of the stereoscopic film 4 through a second optical adhesive 8 . For example, in the second embodiment of the present invention, the first optical adhesive (not shown) and the second optical adhesive 8 may use optically clear Resin (OCR) or liquid optical transparent adhesive (Liquid Optically). Clear Adhesive (LOCA) or optically transparent adhesive (OCA) having a light transmissive adhesive, and the thickness of the first optical adhesive (not shown) and the second optical adhesive 8 may be 0.01 It is between mm and 0.3 mm, preferably between 0.01 mm and 0.22 mm. In other words, the characteristics of the first optical adhesive (not shown) and the second optical adhesive 8 can be used to not only bond the three-dimensional film 4 and the liquid crystal display module 2 to each other, but also to the three-dimensional film 4 and the touch panel 5 . For the bonding, it is possible to adjust the optical focal length and the refractive index by adjusting parameters such as the thickness and material of the first optical adhesive (not shown) and the second optical adhesive 8 so as to be displayed by the three-dimensional film 4 . The stereoscopic image can have a better stereoscopic effect.

The stereoscopic image display D provided by the second embodiment of the present invention can be directly disposed on the polarizer 20 by the stereoscopic grating 40 of the stereoscopic film 4, so that the overall thickness of the stereoscopic image display D is small and can be directly Applied to existing mobile phones, flat Terminal products such as board computers do not need to modify the outer casing mold of the end product while reducing manufacturing costs.

[Possible effects of the examples]

In summary, the present invention can provide a stereoscopic image display D by using the stereoscopic grating 40 of the stereoscopic film 4 directly on the polarizer 20 to enable stereoscopic image display. The overall thickness of the screen D is small, and can be directly applied to an existing end product such as a mobile phone or a tablet computer, without modifying the outer casing mold of the end product, and at the same time reducing the manufacturing cost. Further, by adjusting parameters such as thickness and material of the optical adhesive body 3, the first optical adhesive body (not shown), and the second optical adhesive body 8 to adjust the optical focal length and the refractive index, The stereoscopic image displayed by the film 4 can have a better stereoscopic effect.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Therefore, equivalent technical changes made by using the present specification and the contents of the drawings are included in the protection scope of the present invention. .

D‧‧‧3D image display

1‧‧‧Backlight module

2‧‧‧LCD module

20‧‧‧ polarizer

201‧‧‧ upper surface

202‧‧‧lower surface

4‧‧‧Three-dimensional film

40‧‧‧Stereo grating

5‧‧‧Touch panel

6‧‧‧ air layer

Claims (10)

A stereoscopic image display screen comprising: a backlight module; a liquid crystal display module, the liquid crystal display module is disposed on the backlight module, the liquid crystal display module has a polarizer; and a stereo film The three-dimensional film has a three-dimensional grating directly disposed on the polarizer by printing, plating, or a semiconductor process, and the polarizer has a thickness of between 0.015 mm and 0.25 mm. The stereoscopic image display screen of claim 1, wherein the stereoscopic grating is disposed on an upper surface or a lower surface of the polarizer. The stereoscopic image display device of claim 1, further comprising: a touch panel disposed above the three-dimensional film to form a space between the three-dimensional film and the touch panel An air layer. The stereoscopic image display screen of claim 1, wherein the polarizer is a polymer material, and the polymer material is polyethylene terephthalate (PET) or polyethylene (PE). And one of the three polyvinyl chloride (PolyVinyl Chloride, PVC). The stereoscopic image display screen of claim 1, wherein the polarizer is an upper polarizer or a lower polarizer of the liquid crystal display module. A stereoscopic image display screen comprising: a backlight module; a liquid crystal display module, the liquid crystal display module is disposed on the backlight module, the liquid crystal display module has a polarizer; and a stereo film The three-dimensional film has a three-dimensional grating directly disposed on the polarizer by printing, plating, or a semiconductor process, and the polarizer has a thickness of between 0.015 mm and 0.25 mm. The stereoscopic image display screen of claim 6, wherein the stereoscopic grating is disposed at The upper surface or the lower surface of the polarizer. The stereoscopic image display screen of claim 6, further comprising: a touch panel disposed on the three-dimensional grating of the three-dimensional film by an optical adhesive. The stereoscopic image display screen of claim 6, wherein the polarizer is a polymer material, and the polymer material is polyethylene terephthalate (PET) or polyethylene (PE). And one of the three polyvinyl chloride (PolyVinyl Chloride, PVC). The stereoscopic image display screen of claim 6, wherein the polarizer is an upper polarizer or a lower polarizer of the liquid crystal display module.