TWI581009B - Liquid crystal display and method of manufacturing the same - Google Patents

Description

Liquid crystal display and manufacturing method thereof

The invention relates to a liquid crystal display and a manufacturing method thereof, in particular to a liquid crystal display using an electronically controlled stereo grating structure and a manufacturing method thereof.

In general, based on the stereoscopic vision theory of both eyes, a stereoscopic image with a three-dimensional effect is possible. An important factor in producing a three-dimensional effect is the difference in binocular viewing angle (i.e., the parallax of both eyes) due to the 65 mm distance between the human eyes. That is to say, the left and right eyes respectively see two different two-dimensional images, and when the two images are transmitted to the brain via the retina, the brain combines the transmitted two images and reproduces the original three-dimensional images with depth and realism. This theory is generally referred to as stereoscopic.

According to whether the user should wear a special pair of eyes, we divide the stereoscopic image display device into two general types: a glasses type stereoscopic image display device (stereoscopic image display device) and a non-glasses type stereoscopic image display device (automatic stereoscopic image display device). ). The glasses-type stereoscopic image display device brings the inconvenience of the viewer to wear special glasses, and the auto-stereoscopic image display device allows the viewer to view the three-dimensional image only by directly looking at the screen without wearing the glasses. This autostereoscopic image display device solves the problem of the glasses type stereoscopic image display device. Therefore, regarding autostereoscopic image display devices, there are many studies that are continuing today. We can also classify autostereoscopic image display devices into two general types: devices using the lenticular method and devices using the parallax barrier method. The operation of the stereoscopic image display device using the conventional parallax barrier method can be explained as follows. Stereoscopic image using conventional parallax barrier method The image display device comprises a display module, wherein the left image and the right image respectively correspond to the left eye and the right eye, and the two are vertically aligned and arranged alternately in the horizontal direction; and comprise a stripe form called a barrier. The shielding film is placed at the front end and aligned in the vertical direction. Such a stereoscopic image display device has a system in which a display module and a mask are disposed in the system so that the light of the left image enters only the left eye, and the light of the right image enters only the right eye, thereby respectively separating the left and right eyes. The left and right images are combined to create a three-dimensional effect.

Embodiments of the present invention provide a liquid crystal display using an electronically controlled stereoscopic grating structure and a method of fabricating the same.

A liquid crystal display provided by one embodiment of the present invention includes: a backlight module, a liquid crystal display panel, and an electronically controlled stereoscopic grating structure. The liquid crystal display panel is disposed above the backlight module, wherein the liquid crystal display panel is provided with an upper polarizer and a lower polarizer. The electronically controlled stereoscopic grating structure is disposed on one of the upper polarizer and the lower polarizer of the liquid crystal display panel. The electrically controlled stereoscopic grating structure is an electrochromic three-dimensional grating structure, and the electronically controlled stereoscopic grating structure has a plurality of color-changing linear regions; wherein the electronically controlled stereoscopic grating structure is energized before being The color-changing linear regions exhibit a transparent color; wherein, after the electrically-controlled stereoscopic grating structure is energized, a plurality of the variable-color linear regions are converted from the transparent color to a dark color, so that the plurality of The color-changing linear region is transformed into a plurality of linear pattern barrier regions; wherein an image light source generated by the liquid crystal display passes through the electronically controlled stereoscopic grating structure having a plurality of the linear pattern barrier regions to be converted into a 3D image.

A method for fabricating a liquid crystal display according to another embodiment of the present invention includes the following steps: First, an electronically controlled stereo grating structure is formed in advance on one of an upper polarizer and a lower polarizer; The upper polarizer and the lower polarizer are respectively disposed on opposite end faces of a liquid crystal display panel, wherein a backlight module is disposed under the liquid crystal display panel. Wherein, the electronically controlled The stereoscopic grating structure is an electrochromic stereoscopic grating structure, and the electrically controlled stereoscopic grating structure has a plurality of color-changing linear regions; wherein the electrically-controlled stereoscopic grating structure is energized, and the plurality of the color-changing linear regions are Presenting a transparent color; wherein, after the electrically controlled stereoscopic grating structure is energized, a plurality of the variable color linear regions are changed from the transparent color to a dark color, so that the plurality of the color changeable linear regions are converted into a plurality of a linear pattern barrier region; wherein an image light source generated by the liquid crystal display passes through the electronically controlled stereo grating structure having a plurality of the linear pattern barrier regions to be converted into a 3D image.

The beneficial effect of the present invention may be that a plurality of the color-changing linear regions may exhibit a transparent color before the electrically-controlled stereoscopic grating structure is energized, and an image light source generated by the liquid crystal display is a 2D image. . In addition, after the electrically controlled stereoscopic grating structure is energized, a plurality of the variable color linear regions may change from the transparent color to a dark color (for example, dark blue or due to an "oxidation process" or a "reduction process"). Dark brown) to cause a plurality of the variable color linear regions to be converted into a plurality of linear pattern barrier regions. Thereby, an image light source generated by the liquid crystal display passes through the electronically controlled stereo grating structure having a plurality of the linear pattern barrier regions to be converted into a 3D image.

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

D‧‧‧LCD display

1‧‧‧Backlight module

2‧‧‧LCD panel

201‧‧‧Top

202‧‧‧ bottom

21‧‧‧Upper Polarizer

22‧‧‧low polarizer

23‧‧‧Color Filters

3‧‧‧Light carrying board

4‧‧‧Electronically controlled stereo grating structure

400‧‧‧Colorable linear area

400’‧‧‧Line pattern masking area

41‧‧‧Transparent negative electrode layer

42‧‧‧Electrochromic layer

43‧‧‧Ion Conductive Layer

44‧‧‧Ion storage layer

45‧‧‧Transparent positive electrode layer

5‧‧‧ outermost structure

G‧‧‧Optical adhesive

A‧‧‧ air layer

LM‧‧‧Left eye image

RM‧‧‧right eye image

L‧‧‧Left eye

R‧‧‧Right eye

1 is an electrically controlled stereoscopic grating structure which can be selectively disposed on one of a light-transmitting carrier plate, an upper polarizer and a lower polarizer.

2 is another electrically controlled stereoscopic grating structure which can be selectively disposed on one of a light-transmitting carrier plate, an upper polarizer and a lower polarizer.

3 is a shielding effect of the electronically controlled stereoscopic grating structure having a plurality of linear pattern barrier regions, so that the left eye and the right eye of the viewer respectively receive the left eye image and the right provided by the liquid crystal display A schematic diagram of the action of the eye image.

4 is a flow chart showing a method of fabricating a liquid crystal display according to a first embodiment of the present invention.

Fig. 5 is a schematic view of a liquid crystal display according to a first embodiment of the present invention.

Fig. 6 is a schematic view showing the arrangement of an outermost layer structure on an electrically controlled stereoscopic grating structure by an optical glue according to a first embodiment of the present invention.

Figure 7 is a schematic illustration of a first embodiment of the present invention through an air layer to separate an outermost layer structure from an electrically controlled stereoscopic grating structure by a predetermined distance.

FIG. 8 is a flow chart showing a method of fabricating a liquid crystal display according to a second embodiment of the present invention.

Figure 9 is a schematic view of a liquid crystal display according to a second embodiment of the present invention.

Figure 10 is a schematic view showing the arrangement of an outermost layer structure on an electrically controlled stereoscopic grating structure by optical glue according to a second embodiment of the present invention.

Figure 11 is a schematic illustration of a second embodiment of the present invention through an air layer to separate an outermost layer structure from an electrically controlled stereoscopic grating structure by a predetermined distance.

FIG. 12 is a flow chart showing a method of fabricating a liquid crystal display according to a third embodiment of the present invention.

Figure 13 is a schematic view of a liquid crystal display according to a third embodiment of the present invention.

Figure 14 is a schematic view showing the arrangement of an outermost layer structure on an electrically controlled stereoscopic grating structure by optical glue according to a third embodiment of the present invention.

Figure 15 is a schematic illustration of a third embodiment of the present invention for separating an outermost layer structure from an electrically controlled stereoscopic grating structure by a predetermined distance through an air layer.

16 is a flow chart showing a method of fabricating a liquid crystal display according to a fourth embodiment of the present invention.

Figure 17 is a schematic view of a liquid crystal display according to a fourth embodiment of the present invention.

Figure 18 is a schematic view showing the arrangement of an outermost layer structure on an electrically controlled stereoscopic grating structure by optical glue according to a fourth embodiment of the present invention.

Figure 19 is a schematic illustration of a fourth embodiment of the present invention for separating an outermost layer structure from an electrically controlled stereoscopic grating structure by a predetermined distance through an air layer.

The following is a description of embodiments of the present invention relating to "liquid crystal display and its fabrication method" by way of specific specific examples, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure of the present specification. The invention can be Various modifications and changes can be made without departing from the spirit and scope of the invention. In addition, the drawings of the present invention are merely illustrative and are not described in terms of actual dimensions. The following embodiments will further explain the related technical content of the present invention, but the disclosure is not intended to limit the technical scope of the present invention.

Referring to FIG. 1, the present invention provides an electronically controlled stereoscopic grating structure 4 for a liquid crystal display D having a color filter 23 (for example, a 3D naked-view liquid crystal display D), comprising: a transparent negative electrode layer 41. (eg ITO negative electrode layer), an electrochromic layer 42 (eg one of electro-induced compounds such as WO ₃ , MoO ₃ , TiO ₂ and Nb ₂ O ₃ ), an ion-conducting layer 43 , an ion storage Layer 44 and a transparent positive electrode layer 45 (e.g., ITO positive electrode layer), and the total thickness of the electrically controlled stereoscopic grating structure 4 may be between 50 um and 500 um. The transparent negative electrode layer 41 can be disposed on a transparent carrying plate 3 (for example, transparent glass, or transparent plastic such as PET, PP, PS, etc.) or an upper polarizing light disposed on the liquid crystal display D according to different design requirements. Both the sheet 21 and the lower polarizer 22 are on one of them. The electrochromic layer 42 is disposed on the transparent negative electrode layer 41. The ion conductive layer 43 is disposed on the electrochromic layer 42. The ion storage layer 44 is disposed on the ion conductive layer 43. A transparent positive electrode layer 45 is disposed on the ion storage layer 44. It should be noted that the electronically controlled stereoscopic grating structure 4 is not limited to the embodiment shown in FIG. For example, the electronically controlled three-dimensional grating structure 4 may also be composed of a transparent negative electrode layer 41, an ion conducting layer 43, an electrochromic layer 42 (Electrochromism, EC) and a transparent positive electrode layer 45 in sequence; or The electronically controlled stereoscopic grating structure 4 can also be composed of an ion conducting layer 43 having a negative electrode function, an electrochromic layer 42 and a transparent positive electrode layer 45 stacked in sequence.

Referring to FIG. 2, the present invention provides an electronically controlled stereoscopic grating structure 4 for a liquid crystal display D having a color filter 23, comprising: a transparent positive electrode layer 45 (eg, an ITO positive electrode layer), An ion storage layer 44, an ion conductive layer 43, an electrochromic layer 42 (such as one of electro-sensitive compounds such as WO ₃ , MoO ₃ , TiO ₂ and Nb ₂ O ₃ ) and a transparent negative electrode layer 41 (eg ITO negative electrode layer), and the total thickness of the electrically controlled stereoscopic grating structure 4 may be between 50 um and 500 um. The transparent positive electrode layer 45 can be disposed on a transparent carrier plate 3 (for example, transparent glass, or transparent plastic such as PET, PP, PS, etc.) or an upper polarizer disposed on the liquid crystal display D according to different design requirements. Both the sheet 21 and the lower polarizer 22 are on one of them. The ion storage layer 44 is disposed on the transparent positive electrode layer 45. The ion conducting layer 43 is disposed on the ion storage layer 44. The electrochromic layer 42 is disposed on the ion conductive layer 43. The transparent negative electrode layer 41 is disposed on the electrochromic layer 42. It should be noted that the electronically controlled stereo grating structure 4 is not limited to the embodiment shown in FIG. 2 . For example, the electronically controlled stereoscopic grating structure 4 may also be composed of a transparent positive electrode layer 45, an electrochromic layer 42, an ion conducting layer 43 and a transparent negative electrode layer 41 in sequence; or, electronically controlled stereo The grating structure 4 can also be composed of a transparent positive electrode layer 45, an electrochromic layer 42 and an ion conducting layer 43 having a negative electrode function.

Referring to FIG. 3, the electronically controlled stereoscopic grating structure 4 is an electrochromic three-dimensional grating structure, or an electrochromic thin film grating, that is, the electrically controlled stereoscopic grating structure 4 generates "oxidation" or "after power-on". Restore the reaction and change its color. In addition, the electrically controlled stereoscopic grating structure 4 has a plurality of color-changeable linear regions 400 (for example, a "straight line" color-changeable linear region 400, and FIG. 3 shows a cross-sectional view of the color-changeable linear region 400). In actual use, before the electronically controlled stereoscopic grating structure 4 is energized, the plurality of color-changeable linear regions 400 will exhibit a transparent color. At this time, an image light source generated by the liquid crystal display D is a general 2D image. In addition, after the electrically controlled stereoscopic grating structure 4 is energized, the plurality of color-changeable linear regions 400 may change from a transparent color to a dark color (for example, dark blue or dark brown) due to an "oxidation process" or a "reduction process". The plurality of color-changeable linear regions 400 are caused to be converted into a plurality of linear pattern barrier regions 400' (for example, as shown by the black regions shown in FIG. 3). Thereby, an image light source generated by the liquid crystal display D passes through the electronically controlled stereoscopic grating structure 4 having a plurality of linear pattern barrier regions 400' to be converted into a 3D image.

Furthermore, as shown in FIG. 3, the image light source generated by the liquid crystal display D is divided into a left eye image LM and a right eye image RM. The left eye L and the right eye R of the viewer respectively receive the left eye image LM provided by the liquid crystal display D by the shielding effect of the electronically controlled stereoscopic grating structure 4 having the plurality of linear pattern barrier regions 400'. And the right eye image RM, thereby displaying the display effect of the 3D image to the viewer.

[First Embodiment]

Referring to FIG. 4 and FIG. 5, a first embodiment of the present invention provides a liquid crystal display D having a color filter 23 and a method of fabricating the same. The manufacturing method of the liquid crystal display D provided by the first embodiment of the present invention comprises the following steps: First, in combination with FIG. 1 or FIG. 2, for example, by coating, coating or precision printing, an electronically controlled type is formed in advance. The three-dimensional grating structure 4 is disposed on a light-transmitting carrier plate 3 (S100); then, as shown in FIG. 5, the light-transmitting carrier plate 3 having the electronically controlled three-dimensional grating structure 4 is disposed on the top end 201 of the liquid crystal display panel 2. A backlight module 1 is disposed under the liquid crystal display panel 2 (S102), and a color filter 23 is disposed inside the liquid crystal display panel 2. Furthermore, the liquid crystal display D provided by the first embodiment of the present invention comprises: a backlight module 1, a liquid crystal display panel 2, a light transmissive carrier plate 3, and an electrically controlled stereoscopic grating structure 4. The liquid crystal display panel 2 is disposed above the backlight module 1 . The electronically controlled three-dimensional grating structure 4 is pre-arranged on the light-transmitting carrier plate 3, and the light-transmitting carrier plate 3 having the electronically controlled three-dimensional grating structure 4 can be disposed on the top end 201 of the liquid crystal display panel 2 through an optical glue G. on. For example, as shown in FIG. 1 , the electronically controlled stereoscopic grating structure 4 may be a transparent negative electrode layer 41 , an electrochromic layer 42 , an ion conductive layer 43 , and an ion storage layer 44 disposed on the light transmissive carrier plate 3 . And the transparent positive electrode layer 45 is composed of sequentially stacked from bottom to top. Alternatively, as shown in FIG. 2, the electronically controlled stereoscopic grating structure 4 may be a transparent positive electrode layer 45, an ion storage layer 44, an ion conductive layer 43, an electrochromic layer 42 disposed on the light transmissive carrier plate 3, and The transparent negative electrode layer 41 is composed of sequentially stacked from bottom to top.

Furthermore, please refer to Figure 4 and Figure 6, there will be an electronically controlled stereo After the step of disposing the light-transmitting carrier plate 3 of the grating structure 4 on the top end 201 of the liquid crystal display panel 2, the method further includes: passing an optical glue G to set an outermost layer structure 5 on the electronically controlled stereo grating structure 4 Upper (S104), wherein the outermost structure 5 can be one of a touch panel and a cover glass. Therefore, as shown in FIG. 6, the liquid crystal display D provided by the first embodiment of the present invention further includes: an outermost structure 5, wherein the outermost structure 5 can be disposed through an optical glue G to be electrically controlled. On the three-dimensional grating structure 4.

Further, referring to FIG. 4 and FIG. 7 , after the step of disposing the transparent carrier plate 3 having the electronically controlled stereo grating structure 4 on the top end 201 of the liquid crystal display panel 2, the method further includes: An air layer A is used to separate an outermost structure 5 from the electrically controlled stereoscopic grating structure 4 by a predetermined distance (S106), wherein the outermost layer structure 5 can be one of a touch panel and a cover glass. Therefore, as shown in FIG. 7, the liquid crystal display D provided by the first embodiment of the present invention further includes: an outermost layer structure 5, wherein the outermost layer structure 5 can pass through an air layer A to be electrically controlled The grating structures 4 are separated from each other by a predetermined distance.

[Second embodiment]

Referring to FIG. 8 and FIG. 9, a second embodiment of the present invention provides a liquid crystal display D having a color filter 23 and a method of fabricating the same. The manufacturing method of the liquid crystal display D provided by the second embodiment of the present invention comprises the following steps: First, in combination with FIG. 1 or FIG. 2, for example, by coating, coating or precision printing, an electronically controlled type is formed in advance. The three-dimensional grating structure 4 is disposed on a light-transmitting carrier plate 3 (S200); then, as shown in FIG. 9, the light-transmitting carrier plate 3 having the electronically controlled three-dimensional grating structure 4 is disposed at the bottom end 202 of the liquid crystal display panel 2. A backlight module 1 is disposed under the liquid crystal display panel 2 (S202), and a color filter 23 is disposed inside the liquid crystal display panel 2. Furthermore, the liquid crystal display D provided by the second embodiment of the present invention comprises: a backlight module 1, a liquid crystal display panel 2, a light transmissive carrier plate 3, and an electrically controlled stereoscopic grating structure 4. The liquid crystal display panel 2 is disposed above the backlight module 1 . The electronically controlled three-dimensional grating structure 4 is pre-arranged on the light-transmitting carrier plate 3, The light-transmitting carrier plate 3 having the electronically controlled three-dimensional grating structure 4 can be disposed on the bottom end 202 of the liquid crystal display panel 2 through an optical glue G. For example, as shown in FIG. 1 , the electronically controlled stereoscopic grating structure 4 may be a transparent negative electrode layer 41 , an electrochromic layer 42 , an ion conductive layer 43 , and an ion storage layer 44 disposed on the light transmissive carrier plate 3 . And the transparent positive electrode layer 45 is composed of sequentially stacked from bottom to top. Alternatively, as shown in FIG. 2, the electronically controlled stereoscopic grating structure 4 may be a transparent positive electrode layer 45, an ion storage layer 44, an ion conductive layer 43, an electrochromic layer 42 disposed on the light transmissive carrier plate 3, and The transparent negative electrode layer 41 is composed of sequentially stacked from bottom to top.

Further, referring to FIG. 8 and FIG. 10, after the step of disposing the transparent carrier plate 3 having the electronically controlled stereoscopic grating structure 4 on the bottom end 202 of the liquid crystal display panel 2, the method further includes: An outermost structure 5 is disposed on the top end 201 of the liquid crystal display panel 2 through an optical adhesive G (S204), wherein the outermost layer structure 5 can be one of a touch panel and a cover glass. Therefore, as shown in FIG. 10, the liquid crystal display D provided by the second embodiment of the present invention further includes: an outermost layer structure 5, wherein the outermost layer structure 5 is disposed through an optical glue G to be disposed on the liquid crystal display panel. 2 on top 201.

Further, referring to FIG. 8 and FIG. 11 , after the step of disposing the transparent carrier plate 3 having the electronically controlled stereo grating structure 4 on the bottom end 202 of the liquid crystal display panel 2, the method further includes: An outer layer structure 5 and the liquid crystal display panel 2 are separated from each other by a predetermined distance (S206) through an air layer A, wherein the outermost layer structure 5 can be one of a touch panel and a cover glass. Therefore, as shown in FIG. 11, the liquid crystal display D provided by the second embodiment of the present invention further includes: an outermost layer structure 5, wherein the outermost layer structure 5 can pass through an air layer A to interact with the liquid crystal display panel 2 Separated from each other by a predetermined distance.

[Third embodiment]

Referring to FIG. 12 and FIG. 13, a third embodiment of the present invention provides a liquid crystal display D having a color filter 23 and a method of fabricating the same. The manufacturing method of the liquid crystal display D provided by the third embodiment of the present invention comprises the following steps: First, the matching diagram 1 or 2, for example, by coating, coating or precision printing, an electronically controlled stereo grating structure 4 is formed on an upper polarizer 21 in advance (S300); then, as shown in FIG. The upper polarizer 21 and the lower polarizer 22 having the electronically controlled stereoscopic grating structure 4 are respectively disposed on opposite end faces of the liquid crystal display panel 2, wherein a backlight module 1 is disposed under the liquid crystal display panel 2 (S302). And the inside of the liquid crystal display panel 2 has a color filter 23. Furthermore, the liquid crystal display D provided by the third embodiment of the present invention comprises: a backlight module 1, a liquid crystal display panel 2, and an electronically controlled stereoscopic grating structure 4. The liquid crystal display panel 2 is disposed above the backlight module 1 , and the liquid crystal display panel 2 is provided with an upper polarizer 21 and a lower polarizer 22 . The electronically controlled stereoscopic grating structure 4 is previously disposed on the upper polarizer 21, and the upper polarizer 21 having the electrically controlled stereoscopic grating structure 4 is passed through the optical glue G to be disposed on the liquid crystal display panel 2. For example, as shown in FIG. 1 , the electronically controlled stereoscopic grating structure 4 may be a transparent negative electrode layer 41 disposed on the upper polarizer 21 , an electrochromic layer 42 , an ion conducting layer 43 , an ion storage layer 44 , and The transparent positive electrode layer 45 is composed of sequentially stacked from bottom to top. Alternatively, as shown in FIG. 2, the electronically controlled stereoscopic grating structure 4 may be a transparent positive electrode layer 45 disposed on the upper polarizer 21, an ion storage layer 44, an ion conductive layer 43, an electrochromic layer 42, and a transparent The negative electrode layer 41 is composed of sequentially stacked from bottom to top.

Further, referring to FIG. 12 and FIG. 14 , after the steps of disposing the upper polarizer 21 and the lower polarizer 22 on opposite end faces of the liquid crystal display panel 2, the method further comprises: passing an optical adhesive. G, the outermost layer structure 5 is disposed on the electronically controlled stereoscopic grating structure 4 (S304), wherein the outermost layer structure 5 can be one of a touch panel and a cover glass. Therefore, as shown in FIG. 14, the liquid crystal display D provided by the third embodiment of the present invention further includes: an outermost structure 5, wherein the outermost layer structure 5 is disposed through an optical glue G to be disposed in the electronically controlled stereo On the grating structure 4.

Further, referring to FIG. 12 and FIG. 15, the steps of disposing the upper polarizer 21 and the lower polarizer 22 on opposite end faces of the liquid crystal display panel 2, respectively. After that, the method further includes: separating an outermost layer structure 5 and the electronically controlled stereoscopic grating structure 4 by a predetermined distance (S306) through an air layer A, wherein the outermost layer structure 5 is a touch panel and a Protect one of the two glasses. Therefore, as shown in FIG. 15, the liquid crystal display D provided by the third embodiment of the present invention further includes: an outermost layer structure 5, wherein the outermost layer structure 5 passes through an air layer A, and the electronically controlled stereo grating The structures 4 are separated from each other by a predetermined distance.

[Fourth embodiment]

Referring to FIG. 16 and FIG. 17, a fourth embodiment of the present invention provides a liquid crystal display D having a color filter 23 and a method of fabricating the same. The manufacturing method of the liquid crystal display D provided by the fourth embodiment of the present invention comprises the following steps: First, in combination with FIG. 1 or FIG. 2, for example, by coating, coating or precision printing, an electronically controlled type is formed in advance. The three-dimensional grating structure 4 is disposed on the lower polarizer 22 (S400); then, as shown in FIG. 17, the upper polarizer 21 and the lower polarizer 22 having the electronically controlled stereo grating structure 4 are respectively disposed on the liquid crystal display panel 2. On the opposite end faces, a backlight module 1 is disposed under the liquid crystal display panel 2 (S402), and a color filter 23 is disposed inside the liquid crystal display panel 2. Furthermore, the liquid crystal display D provided by the fourth embodiment of the present invention comprises: a backlight module 1, a liquid crystal display panel 2, and an electronically controlled stereoscopic grating structure 4. The liquid crystal display panel 2 is disposed above the backlight module 1 , and the liquid crystal display panel 2 is provided with an upper polarizer 21 and a lower polarizer 22 . The electronically controlled stereoscopic grating structure 4 is previously disposed on the lower polarizer 22, and the lower polarizer 22 having the electrically controlled stereoscopic grating structure 4 is passed through the optical glue G to be disposed on the liquid crystal display panel 2. For example, as shown in FIG. 1, the electronically controlled stereoscopic grating structure 4 may be a transparent negative electrode layer 41, an electrochromic layer 42, an ion conductive layer 43, an ion storage layer 44, and a transparent layer disposed on the lower polarizer 22. The positive electrode layer 45 is composed of a stack from bottom to top. Alternatively, as shown in FIG. 2, the electronically controlled stereoscopic grating structure 4 may be a transparent positive electrode layer 45, an ion storage layer 44, an ion conductive layer 43, an electrochromic layer 42, and a transparent negative disposed on the lower polarizer 22. The electrode layers 41 are composed of sequentially stacked from bottom to top.

Further, referring to FIG. 16 and FIG. 18, after the steps of disposing the upper polarizer 21 and the lower polarizer 22 on opposite end faces of the liquid crystal display panel 2, the method further comprises: passing an optical adhesive. G, the outermost layer structure 5 is disposed on the upper polarizer 21 (S404), wherein the outermost layer structure 5 can be one of a touch panel and a cover glass. Therefore, as shown in FIG. 18, the liquid crystal display D according to the fourth embodiment of the present invention further includes: an outermost layer structure 5, wherein the outermost layer structure 5 passes through an optical glue G to be disposed on the upper polarizer 21. on.

Further, referring to FIG. 16 and FIG. 19, after the steps of disposing the upper polarizer 21 and the lower polarizer 22 on opposite end faces of the liquid crystal display panel 2, the method further comprises: passing an air layer. A, the outermost structure 5 and the upper polarizer 21 are separated from each other by a predetermined distance (S406), wherein the outermost structure 5 can be one of a touch panel and a cover glass. Therefore, as shown in FIG. 19, the liquid crystal display D according to the fourth embodiment of the present invention further includes: an outermost layer structure 5, wherein the outermost layer structure 5 passes through an air layer A to interact with the upper polarizer 21 Separate a predetermined distance.

[Possible effects of the examples]

In summary, the beneficial effect of the present invention may be that before the electronically controlled stereoscopic grating structure 4 is energized, the plurality of color-changing linear regions 400 will exhibit a transparent color, and an image light source generated by the liquid crystal display D is a 2D image. In addition, after the electrically controlled stereoscopic grating structure 4 is energized, the plurality of color-changeable linear regions 400 may change from a transparent color to a dark color (for example, dark blue or dark brown) due to an "oxidation process" or a "reduction process". The plurality of color-changeable linear regions 400 are caused to be converted into a plurality of linear pattern barrier regions 400' (for example, as shown by the black regions shown in FIG. 3). Thereby, an image light source generated by the liquid crystal display D passes through the electronically controlled stereoscopic grating structure 4 having a plurality of linear pattern barrier regions 400' to be converted into a 3D image.

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‧‧‧LCD display

1‧‧‧Backlight module

2‧‧‧LCD panel

21‧‧‧Upper Polarizer

22‧‧‧low polarizer

23‧‧‧Color Filters

4‧‧‧Electronically controlled stereo grating structure

G‧‧‧Optical adhesive

Claims (8)

A liquid crystal display, comprising: a backlight module; a liquid crystal display panel, the liquid crystal display panel is disposed above the backlight module, wherein the liquid crystal display panel is provided with an upper polarizer and a lower polarizer; An electronically controlled stereoscopic grating structure, wherein the electronically controlled stereoscopic grating structure is disposed on one of the upper polarizer and the lower polarizer of the liquid crystal display panel; wherein the electronically controlled stereo grating The structure is an electrochromic three-dimensional grating structure, and the electronically controlled stereo grating structure has a plurality of color-changing linear regions; wherein the plurality of the color-changing linear regions are transparent before the electrically-controlled stereoscopic grating structure is energized a color, wherein the plurality of the color changeable linear regions are changed from the transparent color to a dark color after the electrically controlled stereoscopic grating structure is energized, so that the plurality of the color changeable linear regions are converted into a plurality of linear patterns a barrier region; wherein an image light source generated by the liquid crystal display passes through the electronically controlled stereoscopic light having a plurality of the linear pattern barrier regions a structure for converting into a 3D image; wherein the electrically controlled stereoscopic grating structure comprises: a transparent positive electrode layer, wherein the transparent positive electrode layer is disposed on the upper polarizer and the lower polarizer of the liquid crystal display panel On one of the two: an ion storage layer, the ion storage layer is disposed on the transparent positive electrode layer; an ion conductive layer, the ion conductive layer is disposed on the ion storage layer; an electrochromic layer a layer, the electrochromic layer is disposed on the ion conductive layer; and a transparent negative electrode layer disposed on the electrochromic layer on. The liquid crystal display according to claim 1, further comprising: an outermost layer structure, wherein the outermost layer structure is disposed on the electronically controlled stereoscopic grating structure and the upper polarizer by an optical glue And the outermost structure is one of a touch panel and a cover glass. The liquid crystal display according to claim 1, further comprising: an outermost layer structure, wherein the outermost layer structure passes through an air layer to be combined with the electrically controlled stereoscopic grating structure and the upper polarizer Separating from each other by a predetermined distance, and the outermost structure is one of a touch panel and a cover glass. A manufacturing method of a liquid crystal display, comprising the steps of: pre-forming an electronically controlled stereo grating structure on one of an upper polarizer and a lower polarizer; and the upper polarizer and the lower polarizer Separately disposed on opposite end faces of a liquid crystal display panel, wherein a backlight module is disposed under the liquid crystal display panel; wherein the electronically controlled stereoscopic grating structure is an electrochromic stereoscopic grating structure, and the electronic control The stereoscopic grating structure has a plurality of color-changing linear regions; wherein the plurality of the color-changeable linear regions exhibit a transparent color before the electrically-controlled stereoscopic grating structure is energized; wherein the electronically controlled stereoscopic grating structure is energized Thereafter, a plurality of the color changeable linear regions are converted from the transparent color to a dark color, so that the plurality of the color changeable linear regions are converted into a plurality of linear pattern barrier regions; wherein the liquid crystal display generates one The image light source is converted into a 3D image by the electronically controlled stereo grating structure having a plurality of the linear pattern barrier regions. The method of fabricating a liquid crystal display according to claim 4, wherein the electronically controlled stereoscopic grating structure comprises: a transparent negative electrode layer, wherein the transparent negative electrode layer is disposed on the liquid crystal display panel And one of the upper polarizer and the lower polarizer; an electrochromic layer, the electrochromic layer is disposed on the transparent negative electrode layer; an ion conducting layer, the ion conducting a layer disposed on the electrochromic layer; an ion storage layer disposed on the ion conducting layer; and a transparent positive electrode layer disposed on the ion storage layer on. The method of fabricating a liquid crystal display according to claim 4, wherein the electrically controlled stereoscopic grating structure comprises: a transparent positive electrode layer, wherein the transparent positive electrode layer is disposed on the _upper polarizer of the liquid crystal display panel And one of the lower polarizers; an ion storage layer, the ion storage layer is disposed on the transparent positive electrode layer; an ion conductive layer, the ion conductive layer is disposed on the ion storage layer And an electrochromic layer disposed on the ion conductive layer; and a transparent negative electrode layer disposed on the electrochromic layer. The method of manufacturing the liquid crystal display according to claim 4, wherein after the step of disposing the upper polarizer and the lower polarizer on the opposite end faces of the liquid crystal display panel, the method further comprises: An outermost layer structure is disposed on one of the electrically controlled stereoscopic grating structure and the upper polarizer by an optical adhesive, wherein the outermost layer is a touch panel and a cover glass one of them. The method of manufacturing the liquid crystal display according to claim 4, wherein after the step of disposing the upper polarizer and the lower polarizer on the opposite end faces of the liquid crystal display panel, the method further comprises: Separating an outermost layer structure from one of the electrically controlled stereoscopic grating structure and the upper polarizer by a predetermined distance by an air layer, wherein the outermost structure is a touch One of the panel and a protective glass.