TWI432783B - Stereoscopic display module, manufacturing method thereof and production system thereof - Google Patents

Description

Stereoscopic display module, manufacturing method thereof and production system thereof

The invention relates to a stereoscopic display module, a manufacturing method thereof and a manufacturing system thereof.

With the advancement of display technology, displays with better picture quality, richer colors and better effects are constantly being introduced. In recent years, stereoscopic display technology has a tendency to be promoted from cinemas to home displays. The key to stereoscopic display is to let the left eye and the right eye separately see the left eye image and the right eye image with different viewing angles. Therefore, the stereoscopic display technology of the glasses is mostly used to allow the user to wear special glasses to filter the left. Eye picture and right eye picture.

Stereoscopic display technology with glasses can be divided into active and passive. One of the active stereoscopic display technologies is to have the display alternately display the left eye picture and the right eye picture, and the user wears glasses with a liquid crystal shutter. The liquid crystal shutter placed in the left eye and the liquid crystal shutter placed in the right eye are alternately opened, so that the left eye and the right eye of the user respectively receive the left eye image and the right eye image, thereby generating a stereoscopic image in the user's brain. . However, the liquid crystal shutter used in the active stereoscopic display technology is relatively expensive, and it is necessary to supply power to the liquid crystal shutter. In addition, in order to synchronize the switching of the left eye screen and the right eye screen of the stereoscopic display with the time of opening and closing of the liquid crystal shutter, the cost of the stereoscopic display and the glasses is also increased. The increase in cost is likely to affect the popularity of stereoscopic displays.

One of the passive stereo display technologies is to attach a micro-retarder to the display. The micro-phase retardation film divides the image of the picture into two images with different polarization directions, and the glasses worn by the user include two polarizers with different polarization directions to separately screen the two images with different polarization directions. Since the polarizer used in the passive stereoscopic display technology is cheaper than the liquid crystal shutter used in the active stereoscopic display technology, and the glasses used in the passive stereoscopic display technology can be used without switching, and can be used not for switching with the screen, the passive stereoscopic display The cost is cheaper and more likely to be accepted by the average consumer. As a result, it helps to promote stereoscopic display technology to the home field.

An embodiment of the present invention provides a method for fabricating a stereoscopic display module, including the following steps. A display module is provided. A first phase retardation film is attached to the display module by a heat resistant adhesive layer. After attaching the first phase retardation film to the display module by using the heat resistant adhesive layer, a partial region of the first phase retardation film is heated to break phase retardation characteristics of the partial region, wherein the partial region includes a plurality of subregions spaced apart .

Another embodiment of the present invention provides a stereoscopic display module including a display module, a patterned phase retardation film, and a heat resistant adhesive layer. The patterned phase retardation film is disposed on the display module, wherein the patterned phase retardation film includes a plurality of phase retardation regions and a plurality of light transmissive regions, and the phase retardation regions are alternately disposed with the light transmissive regions. The heat resistant adhesive layer is disposed between the display module and the patterned phase retardation film to attach the patterned phase retardation film to the display module.

Another embodiment of the present invention provides a system for manufacturing a stereoscopic display module, which is used to form a display module into a stereoscopic display module. The manufacturing system of the stereoscopic display module comprises a displacement control bearing platform, a heating device, a pair of positioning devices and a control unit. The displacement control carrier platform is used to carry and move the display module. The heating device is for heating a phase retardation film attached to the display module. The alignment device is used to align the display module with the heating device. The control unit heats the partial region of the phase retardation film by controlling the relative position of the displacement control bearing platform and the heating device, wherein the partial region includes a plurality of sub-regions spaced apart.

In order to make the above-described features of the present invention more comprehensible, the following detailed description of the embodiments will be described in detail below.

1A and FIG. 1D are schematic diagrams showing a flow of a method for fabricating a stereoscopic display module according to an embodiment of the present invention, wherein FIGS. 1A and 1B are schematic cross-sectional views, and FIGS. 1C and 1D are perspective views. The manufacturing method of the stereoscopic display module of this embodiment includes the following steps. First, referring to FIG. 1A, a display module 100 is provided. The display module 100 is, for example, a display module generally used for displaying a two-dimensional picture. In this embodiment, the display module 100 is a liquid crystal display panel. Specifically, the display module 100 can include an active device array substrate 110, a liquid crystal layer 120, a pair of substrates 130, a first polarizing film 140, and a second polarizing film 150, wherein the liquid crystal layer 120 is disposed on the active device. Between the array substrate 110 and the opposite substrate 130, the active device array substrate 110 is disposed between the first polarizing film 140 and the liquid crystal layer 120, and the opposite substrate 130 is disposed between the second polarizing film 150 and the liquid crystal layer 120. In the embodiment, the first polarizing film 140 is attached to the active device array substrate 110, and the second polarizing film 150 is attached to the opposite substrate 130. The active device array substrate 110 is, for example, a thin film transistor array substrate on which a plurality of pixel structures are provided. The opposite substrate 130 is, for example, a color filter array substrate. However, in other embodiments, the display module may also be a plasma display panel (PDP) to which a polarizing film is attached, and an organic light-emitting diode panel (OLED). Panel) or other suitable display module.

Next, referring to FIG. 1B, a first phase retardation film 220 is attached to the display module 100 by a heat resistant adhesive layer 210. Specifically, the first phase retardation film 220 can be attached to the second polarizing film 150 of the display module 100. However, in another embodiment, the display module 100 can be inverted, and the first phase retardation film 220 is attached to the first polarizing film 140 by the heat resistant adhesive layer 210, and the first polarizing film 140 is actively disposed. The element array substrate 110 is interposed between the first phase retardation film 220 and the heat resistant adhesive layer 210 is located between the first polarizing film 140 and the first phase retardation film 220. In the present embodiment, the heat resistant adhesive layer 210 has a heat resistant temperature greater than or equal to 80 degrees Celsius. For example, the heat resistant adhesive layer 210 is, for example, a substrateless double-sided tape, and the material of the heat-resistant adhesive layer 210 is, for example, a substrate-free optical adhesive. Further, in the present embodiment, the heat-resistant adhesive layer 210 has a thickness of more than 30 μm. In addition, in the present embodiment, when the heat-resistant adhesive layer 210 is cured, it is substantially transparent and colorless, and is suitable for light to pass through. Furthermore, in the present embodiment, the first phase retardation film 220 is, for example, a half-wavelength phase retardation film, that is, a half-wave plate.

Thereafter, referring to FIG. 1C, after the first phase retardation film 220 is attached to the display module 100 by the heat resistant adhesive layer 210, the partial region 222 of the first phase retardation film 220 is heated to break the phase of the partial region 222. The delay characteristic, wherein the partial region 222 includes a plurality of sub-regions 224 that are spaced apart. In the present embodiment, these sub-regions 224 are stripe-shaped. The first phase retardation film 220 may have a birefringent material, and the material characteristics form two refractive indexes, a fast axis and a slow axis. The phase retardation relationship is controlled by the wavelength of the incident light and the thickness of the birefringent material, and thus the first phase retardation film 220 has the characteristics of phase delay. When the partial region 222 of the first phase retardation film 220 is heated, the phase retardation characteristics of these birefringent materials are eliminated, and as a result, the phase of the partial region 222 loses the retardation effect.

In the present embodiment, the step of heating the partial region 222 of the first phase retardation film 220 includes heating the partial region 222 with the laser beam 312. However, in other embodiments, the step of heating the partial region 222 of the first phase retardation film 220 may also include heating the embossed portion region 222, heating the partial region 222 with the thermal resistance wire, or any portion 222 of the portion 222. A heating method in which the phase delay characteristic is lost.

After all the partial regions 222 are heated, the first phase retardation film 220 is patterned into the patterned phase retardation film 220a as shown in FIG. 1D, and the stereoscopic display module 200 as shown in FIG. 1D is formed. The stereoscopic display module 200 includes a display module 100, a patterned phase retardation film 220a, and a heat resistant adhesive layer 210. The patterned phase retardation film 220a is disposed on the display module 100, wherein the patterned phase retardation film 220a includes a plurality of phase retardation regions 226 and a plurality of light transmission regions, wherein the light transmission region is the heated sub-region 224, and The phase delay region 226 is formed by the unheated region of the original first phase retardation film 220. These phase delay regions 226 are alternately arranged with these light transmitting regions. In other words, in the present embodiment, the patterned phase retardation film 220a is a micro retardation film. The heat resistant adhesive layer 210 is disposed between the display module 100 and the patterned phase retardation film 220a to attach the patterned phase retardation film 220a to the display module 100.

In another embodiment, if the first phase retardation film 220 is attached to the first polarizing film 140 by the heat resistant adhesive layer 210 during the manufacturing process, the patterned phase retardation film 220a is attached by the heat resistant adhesive layer 210. On the first polarizing film 140, that is, the first polarizing film 140 is located between the active device array substrate 110 and the patterned phase retardation film 220a, and the heat resistant adhesive layer 210 is located between the first polarizing film 140 and the patterned phase retardation film 220a. between.

When a side of the stereoscopic display module 200 (for example, a side close to the first polarizing film 140, that is, a lower side of FIG. 1A) is provided with a backlight, the light emitted by the backlight sequentially passes through the first polarizing film 140, Since the active device array substrate 110, the liquid crystal layer 120, the counter substrate 130, and the second polarizing film 150 are polarized light, for example, linearly polarized light. The portion of the light emitted by the display module 100 passes through the light-transmissive region (i.e., the heated sub-region 224). Since the light-transmitting region has no phase delay characteristics, this portion of the light still maintains the original polarization state. On the other hand, another portion of the light emitted by the display module 100 passes through the phase delay region 226, which changes the polarization state of the light of the other portion. For example, the phase delay region 226 is, for example, a half-wavelength phase delay region, and when the light emitted by the display module 100 is linearly polarized light, the phase delay region 226 rotates the linear polarization direction of the light by 90 degrees. As a result, the linear polarization direction of the light passing through the light transmitting region is different from the linear polarization direction of the light passing through the phase retardation region 226 by 90 degrees. When the user wears the polarized glasses, and the two axes of the polarizing glasses have a transmission axis direction that is different by 90 degrees and respectively correspond to the linear polarization direction of the light passing through the light transmitting region and the linear polarization direction of the phase delay region 226. Then, one of the left eye and the right eye of the user will see the image carried by the light from the light transmitting area, and the other of the left eye and the right eye of the user will see the light from the phase delay zone 226. The image so that a stereoscopic image can be produced in the user's brain.

In the manufacturing method of the stereoscopic display module 200 of the present embodiment, after the first phase retardation film 220 is attached to the display module 100, the image sensor 340 (refer to FIG. 2) and the display module are used. After the pixel image of 100 is aligned (for example, with respect to the image of the red, green or blue sub-pixel), it is heated and patterned, so the patterned phase delay made by the first phase retardation film 220 The light transmissive region of the film 220a and the phase retardation region 226 are aligned with the pixels of the display module 100. In other words, while the first phase retardation mode 220 is heated to form the patterned phase retardation film 220a, the light transmissive region and the phase retardation region 226 of the patterned phase retardation film 220a are self-aligned to the display module. 100 pixels. In this way, the manufacturing method of the stereoscopic display module 200 can eliminate the step of re-packaging, which can simplify the flow of the manufacturing method of the stereoscopic display module 200. In addition, the manner in which the light transmissive region and the phase retardation region 226 are self-aligned to the pixels of the display module 100 can effectively reduce the positional error of the light transmissive region and the phase retardation region 226 with respect to the pixels. On the other hand, if the first phase retardation film 220 is first heated to be patterned into the patterned phase retardation film 220a, and then the patterned phase retardation film 220a is attached to the display module 100, there is often an error in the attachment. The alignment accuracy of the pixels of the transparent region and the phase delay region 226 and the display module 100 is reduced, and the precision alignment system auxiliary display module 100 and the patterned phase retardation film 220a are required to be packaged.

On the other hand, since the first phase retardation film 220 is attached to the display module 100 by the heat resistant adhesive layer 210, when the first phase retardation film 220 is heated, the heat resistant adhesive layer 210 can maintain stability without The first phase retardation film 220 is detached from the display module 100.

In addition, since the stereoscopic display module 200 of the present embodiment has the heat-resistant adhesive layer 210, the alignment between the display module 100 and the patterned phase retardation film 220a in the stereoscopic display module 200 can be accurately adjusted, thereby enhancing the stereoscopic display. The display quality of the module 200.

In this embodiment, a backlight module can be disposed under the stereoscopic display module 200 (ie, the side of the first polarizing film 140) to provide a backlight to the stereoscopic display module 200. Thus, the stereoscopic display module 200 and the backlight module can form a stereoscopic display. However, when the display module 200 is not a liquid crystal display panel, but a self-luminous display module such as a plasma display panel or an organic light-emitting diode panel to which a polarizing film is attached on the screen, the display module 200 may not be disposed below. Backlight module.

FIG. 2 is a schematic diagram showing one step of a method for fabricating a stereoscopic display module according to an embodiment of the present invention. Referring to FIG. 2, in the present embodiment, after the partial region 222 of the first phase retardation film 220 is heated and after the first phase retardation film 220 is attached to the display module 100 by the heat resistant adhesive layer 210, That is, between the two steps of FIG. 1B and FIG. 1C, the display module 100 can be aligned with a heating device 310 for heating the partial region 222. In the present embodiment, the heating device 310 is, for example, a laser generator for generating a laser beam 312. The laser generator is for example a gas laser generator, a solid state laser generator or other suitable laser generator. In other embodiments, the heating device can also be a hot stamp to thermally emboss the partial region 222. Alternatively, the heating device can also be a thermal resistance wire to heat the partial region 222.

In addition, in this embodiment, after the display module 100 is aligned with the heating device 310, and after the first phase retardation film 220 is attached to the display module 100 by using the heat-resistant adhesive layer 210, the display mode can be displayed. The group 100 is roughly fixed to a displacement control carrying platform 320.

In this embodiment, the step of aligning the display module 100 with the heating device 310 may include the following steps. First, a light source 330 is provided to illuminate the display module 100. In the embodiment, the light source 330 is, for example, a light source to provide backlight to the display module 100. Next, the display module 100 is positioned by at least one image sensor 340. The image sensor 340 can sense the image of the display module 100, for example, the pixel image of the sensing display module 100, and more specifically, for example, the red, green or blue sub-pixel of the sensing display module 100. Image. In this embodiment, the image sensor 340 is, for example, a charge coupled device (CCD), and a lens having a function of magnifying the image may be disposed in front of the image sensor to enlarge the image of the display module 100 and image the charge. On the coupling element. In other embodiments, a complementary metal oxide semiconductor sensor (CMOS sensor) or other image sensor may be used instead of the charge coupled device. For example, the image sensor 340 and the light source 330 can be respectively disposed on opposite sides of the display module 100. Therefore, when the light source 330 is turned on, the image sensor 340 can more easily sense the display module 100. The pixel structure is further positioned by the display module 100 according to the pixel structure. Alternatively, in another embodiment, the display module 100 can be aligned with the heating device 310 by using at least one pair of bit marks 160 of the display module 100 (the two alignment marks are taken as an example in FIG. 2). In other words, the image sensor 340 can sense the alignment mark 160, and thus can position the display module 100 according to the alignment mark 160. In other embodiments, the alignment mark 160 may be disposed at four corners of the display module 100 to thereby align the display module 100 with the heating device 310. In this embodiment, the image sensor 340 can be used to locate at least two positions on the display module 100. For example, two image sensors 340 are used to position two of the display modules 100. The position, that is, the position of the left end and the right end of the display module 100. However, in other embodiments, the image sensor 340 can also position three positions on the display module 100, such as positioning the left end, the right end, and the upper end of the display module 100 (ie, the left side of FIG. 2), or positioning the display mode. The left end, the right end, and the lower end of the group 100 (ie, the right side of Figure 2). Alternatively, the image sensor 340 can also position more than four locations on the display module 100.

In this embodiment, a control unit 350 can be used to control the positioning process of the display module 100. The control unit 350 is electrically connected to the heating device 310, the image sensor 340, and the displacement control bearing platform 320. In the present embodiment, the displacement control carrying platform 320 includes a carrying platform 322 and an actuator 324. The actuator 324 is coupled to the carrier platform 322 and the actuator 324 drives the carrier platform 322 to move. Further, in the present embodiment, the control unit 350 is electrically connected to the actuator 324. In the present embodiment, the heating device 310 is scanned, for example, along a first direction (such as the x direction depicted in FIG. 2), and the actuator 324, for example, drives the carrier platform 322 along a second direction (eg, The y direction shown in FIG. 2 moves, wherein the first direction (x direction) is substantially perpendicular to the second direction (y direction). However, in other embodiments, it is also possible that the heating device 310 can scan along the first direction and can move in the second direction while the carrier platform 322 remains stationary. Alternatively, it is also possible that the heating device 310 remains stationary and the carrier platform 322 is movable in the first direction and the second direction. In this embodiment, the control unit 350 can control the moving speed and displacement of the carrying platform 322. Therefore, the manufacturing method of the stereoscopic display module of the present embodiment can be applied to the production of stereoscopic display modules of various sizes.

In this embodiment, the step of aligning the display module 100 with the heating device 310 includes feeding back the signal generated by the image sensor 340 to the displacement control carrier platform 320, so that the displacement control carrier platform 320 moves according to the signal. In turn, the display module 100 is aligned with the heating device 310. For example, the control unit 350 can move the displacement control carrier platform 320 according to the image signal transmitted by the image sensor 340. Specifically, the control unit 350 can determine the position of the display module 100 by determining the signal transmitted by the image sensor 340, and then determine how to control the movement of the displacement control carrier platform 320 to make the display module 100 and the heating. Device 310 is aligned. In detail, control unit 350 sends a control signal to actuator 324 of displacement control carrier platform 320 to command actuator 324 to drive carrier platform 322 to the appropriate position.

In this embodiment, the method for fabricating the stereoscopic display module can be performed by using the production system 300 of the stereoscopic display module. The production system 300 is used to form the display module 100 into the stereoscopic display module 200. The production system 300 includes a displacement control carrying platform 320, a heating device 310, a registration device (such as image sensor 340 in this embodiment), and a control unit 350. The displacement control carrier platform 320 is used to carry and move the display module 100. The heating device 310 is configured to heat the first phase retardation film 220 attached to the display module 100. A registration device (eg, image sensor 340) is used to align display module 100 with heating device 310. The control unit 350 causes the heating device 310 to heat the partial region 222 of the first phase retardation film 220 by controlling the relative positions of the displacement control carrier platform 320 and the heating device 310.

In the present embodiment, since the heating device 310 is aligned with the display module 100 before the heating device 310 heats the partial region 222, the heated light transmitting region and the phase retarding region 226 can be more accurately By aligning with the pixels of the display module 100, the moire phenomenon of the stereoscopic display device can be effectively improved to improve the image quality of the stereoscopic display device.

In the manufacturing system 300 of the stereoscopic display module of the embodiment, since the alignment device is used to align the display module 100 with the heating device 310, the first phase retardation film 220 can be attached to the display module 100. The patterning process further improves the alignment of the display module 100 and the patterned phase retardation film 220a to improve the display quality of the stereoscopic display module 200.

FIG. 3 is a schematic diagram showing one step of a method for fabricating a stereoscopic display module according to an embodiment of the present invention. Referring to FIG. 3, in the present embodiment, after the partial region 222 of the first phase retardation film 220 is heated to form the patterned phase retardation film 220a, that is, after the step of FIG. 1D, the first phase retardation film 220 is formed. A protective layer 230 is attached thereon, that is, a protective layer 230 is attached on the patterned phase retardation film 220a, wherein the protective layer 230 can be used to protect the patterned phase retardation film 220a. In the embodiment, the protective layer 230 includes at least one of a hard coat layer, an anti-reflection film, an anti-glare film, an anti-oil film, and an anti-finger film. Thus, the stereoscopic display module 200b of FIG. 3 is completed.

FIG. 4 is a schematic diagram showing one step of a method for fabricating a stereoscopic display module according to an embodiment of the present invention. Referring to FIG. 4, in the present embodiment, after the partial region 222 of the first phase retardation film 220 is heated to form the patterned phase retardation film 220a, that is, after the step of FIG. 1D, the first phase retardation film 220 may be A second phase retardation film 240 is attached to the second phase retardation film 240, that is, the second phase retardation film 240 is attached to the patterned phase retardation film 220a. In the present embodiment, the second phase retardation film 240 may be attached to the patterned phase retardation film 220a by an adhesive layer 250. Thereafter, a protective layer 230 as shown in FIG. 3 can be formed on the second phase retardation film 240 to protect the second phase retardation film 240, so that the stereoscopic display module 200c of FIG. 4 can be formed.

The second phase retardation film 240 is, for example, a quarter-wave phase retardation film. In this embodiment, when the light from the display module 100 passes through the patterned phase retardation film 220a, two kinds of light having mutually perpendicular directions of linear polarization are generated, and after passing through the quarter-wave phase retardation film, this can be Two kinds of light whose polarization directions are perpendicular to each other are respectively converted into two circularly polarized lights having different polarization directions, such as left-handed polarization and right-handed polarization. In this way, the two lenses of the polarized glasses worn by the user can be a left-handed circular polarizing plate and a right-handed circular polarizing plate, so that the user can see two different images for the left eye and the right eye respectively. And then generate a stereoscopic image in the user's brain. Since the stereoscopic display module 200 of FIG. 1D generates two kinds of light beams having mutually perpendicular polarization directions to respectively carry two different screens, when the user wears two kinds of linear polarized lenses whose transmission axes are perpendicular to each other, the head is skewed. At this time, the filtering effect of the linear polarizing lens is not good, and the stereoscopic image has a serious cross-talk phenomenon. In contrast, since the stereoscopic display module 200c of FIG. 4 generates two kinds of light having different circular polarization directions, the two polarized lenses with different polarization directions worn by the user are at any angle and circular polarization. The light filtering effect is the same, so even if the user's head is skewed, a clear stereoscopic image can be seen. In this way, the user's comfort when viewing the picture can be improved.

FIG. 5 is a schematic diagram showing one step of a method for fabricating a stereoscopic display module according to another embodiment of the present invention. Referring to FIG. 5, the manufacturing method of the stereoscopic display module of this embodiment is similar to the manufacturing method of the stereoscopic display module of FIG. 2, and the difference between the two is as follows. In this embodiment, instead of using the image sensor 340 as shown in FIG. 2, in the embodiment, the step of aligning the display module 100 with the heating device 310 includes replacing the display module 100. It is placed on a precision bearing surface 323d of a carrying platform 322d. When the display module 100 is accurately supported by the precision bearing surface 323d, the alignment between the display module 100 and the heating device 310 is completed, because the bearing platform 322d and the precision bearing surface 323d and the heating device 310 are in the whole system. Originally, the alignment of the display module 100 and the heating device 310 is completed as long as the display module 100 is aligned with the precision bearing surface 323d. In other words, in the present embodiment, the alignment device is the precision bearing surface 323d on the displacement control carrying platform 320.

In summary, in the method for fabricating the stereoscopic display module according to the embodiment of the present invention, since the first phase retardation film is first attached to the display module, it is heated and patterned, and thus the first phase is The light-transmissive region and the phase retardation region of the patterned phase retardation film made of the retardation film can self-align with the pixels of the display module when heated, thereby improving the display quality of the stereoscopic display module and simplifying the stereoscopic display mode. The production process of the group. Since the stereoscopic display module of the embodiment of the present invention has a heat-resistant adhesive layer, the display module in the stereoscopic display module can not damage the structure of the display module during the phase delay film heating process, thereby improving the stereoscopic display module. Display quality. In the manufacturing system of the stereoscopic display module according to the embodiment of the present invention, since the alignment device is used to align the display module with the heating device, the first phase retardation film can be patterned after being attached to the display module. The processing further improves the alignment of the display module and the patterned phase retardation film, and improves the display quality of the stereoscopic display module.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

100. . . Display module

110. . . Active device array substrate

120. . . Liquid crystal layer

130. . . Counter substrate

140. . . First polarizing film

150. . . Second polarizing film

160. . . Alignment mark

200, 200b, 200c. . . Stereo display module

210. . . Heat resistant adhesive layer

220. . . First phase retardation film

220a. . . Patterned phase retardation film

222. . . partial area

224. . . Subregion

226. . . Phase delay zone

230. . . The protective layer

240. . . Second phase retardation film

250. . . Adhesive layer

300. . . Production system

310. . . heating equipment

312. . . Laser beam

320. . . Displacement control bearing platform

322, 322d. . . Carrier platform

323d. . . Precision bearing surface

324. . . Actuator

330. . . light source

340. . . Image sensor

350. . . control unit

x. . . direction

y. . . direction

1A to 1D are schematic diagrams showing the flow of a method for fabricating a stereoscopic display module according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing one step of a method for fabricating a stereoscopic display module according to an embodiment of the present invention.

FIG. 3 is a schematic diagram showing one step of a method for fabricating a stereoscopic display module according to an embodiment of the present invention.

FIG. 4 is a schematic diagram showing one step of a method for fabricating a stereoscopic display module according to an embodiment of the present invention.

FIG. 5 is a schematic diagram showing one step of a method for fabricating a stereoscopic display module according to another embodiment of the present invention.

100. . . Display module

110. . . Active device array substrate

120. . . Liquid crystal layer

130. . . Counter substrate

140. . . First polarizing film

150. . . Second polarizing film

210. . . Heat resistant adhesive layer

220. . . First phase retardation film

222. . . partial area

224. . . Subregion

226. . . Phase delay zone

310. . . heating equipment

312. . . Laser beam

Claims (37)

A method for manufacturing a stereoscopic display module, comprising: providing a display module; attaching a first phase retardation film to the display module by using a heat resistant adhesive layer; and using the heat resistant adhesive layer to form the first phase After the retardation film is attached to the display module, a partial region of the first phase retardation film is heated to destroy phase retardation characteristics of the partial region, wherein the partial region includes a plurality of sub-regions arranged at intervals. The method of manufacturing the stereoscopic display module of claim 1, wherein the step of heating the partial region of the first phase retardation film comprises heating the partial region with a laser beam, thermally imprinting the portion of the region, or The partial area is heated by a thermal resistance wire. The method for fabricating a stereoscopic display module according to claim 1, further comprising: pasting the first phase retardation film with the heat resistant adhesive layer before heating the partial region of the first phase retardation film After being attached to the display module, the display module is aligned with a heating device, wherein the heating device is used to heat the partial region. The method for manufacturing a stereoscopic display module according to claim 3, wherein the step of aligning the display module with the heating device comprises: providing a light source to illuminate the display module; and utilizing at least one image The sensor positions the display module. The method for fabricating the stereoscopic display module of claim 4, further comprising positioning the at least two locations on the display module by using the image sensor. The method for manufacturing a stereoscopic display module according to claim 5, further comprising: before the display module is aligned with the heating device, and applying the first phase retardation film by using the heat resistant adhesive layer After being attached to the display module, the display module is roughly fixed on a displacement control bearing platform. The method for manufacturing a stereoscopic display module according to claim 6, wherein the step of aligning the display module with the heating device comprises: feeding back the signal generated by the image sensor to the displacement control The platform is supported such that the displacement control carrier moves according to the signal, and the display module is aligned with the heating device. The method for manufacturing a stereoscopic display module according to claim 3, wherein the step of aligning the display module with the heating device comprises supporting the display module against a precision bearing surface of a carrying platform on. The method for manufacturing a stereoscopic display module according to claim 3, wherein the step of aligning the display module with the heating device comprises using the alignment mark on the display module to display the display module with The heating device is in position. The method of fabricating a stereoscopic display module according to claim 1, wherein the first phase retardation film is a half-wavelength phase retardation film. The method for manufacturing a stereoscopic display module according to claim 1, wherein the display module is a liquid crystal display panel. The method for fabricating a stereoscopic display module according to claim 1, wherein the sub-regions are stripe-shaped. The method for fabricating a stereoscopic display module according to claim 1, further comprising: after heating the partial region of the first phase retardation film, attaching a protective layer to the first phase retardation film. The method for manufacturing a stereoscopic display module according to claim 13, wherein the protective layer comprises at least one of a hard coat layer, an anti-reflection film, an anti-glare film, an anti-oil film, and an anti-finger film. The method for fabricating a stereoscopic display module according to claim 1, further comprising: attaching a second phase to the first phase retardation film after heating the partial region of the first phase retardation film Delayed film. The method of fabricating a stereoscopic display module according to claim 15, wherein the second phase retardation film is a quarter-wave phase retardation film. The method for fabricating a stereoscopic display module according to claim 1, wherein the heat resistant adhesive layer has a thickness greater than 30 micrometers. The method for fabricating a stereoscopic display module according to claim 1, wherein the heat resistant adhesive layer has a heat resistance temperature greater than or equal to 80 degrees Celsius. The method of manufacturing the stereoscopic display module of claim 1, wherein the display module comprises an active device array substrate, a liquid crystal layer, a pair of substrates, a first polarizing film and a second polarizing film. The liquid crystal layer is disposed between the active device array substrate and the opposite substrate, the active device array substrate is disposed between the first polarizing film and the liquid crystal layer, and the opposite substrate is disposed on the second polarizing film Between the liquid crystal layers, the step of attaching the first phase retardation film to the display module by using the heat resistant adhesive layer, the first phase retardation film is attached to the second polarization by the heat resistant adhesive layer On the membrane. The method of manufacturing the stereoscopic display module of claim 1, wherein the display module comprises an active device array substrate, a liquid crystal layer, a pair of substrates, a first polarizing film and a second polarizing film. The liquid crystal layer is disposed between the active device array substrate and the opposite substrate, the active device array substrate is disposed between the first polarizing film and the liquid crystal layer, and the opposite substrate is disposed on the second polarizing film Between the liquid crystal layers, the step of attaching the first phase retardation film to the display module by using the heat resistant adhesive layer, the first phase retardation film is attached to the first polarization by the heat resistant adhesive layer On the membrane. A stereoscopic display module includes: a display module; a patterned phase retardation film disposed on the display module, wherein the patterned phase retardation film includes a plurality of phase delay regions and a plurality of light transmissive regions, and the The phase retardation region is alternately disposed with the light-transmissive regions; and a heat-resistant adhesive layer is disposed between the display module and the patterned phase retardation film to attach the patterned phase retardation film to the display module on. The stereoscopic display module of claim 21, further comprising a protective layer disposed on the patterned phase retardation film. The stereoscopic display module of claim 22, wherein the protective layer comprises at least one of a hard coat layer, an anti-reflection film, an anti-glare film, an anti-oil film, and an anti-finger film. The stereoscopic display module of claim 21, further comprising a phase retardation film disposed on the patterned phase retardation film. The stereoscopic display module of claim 24, wherein the phase retardation film disposed on the patterned phase retardation film is a quarter-wave phase retardation film. The stereoscopic display module of claim 21, wherein the phase retardation regions included in the patterned phase retardation film are half-wavelength phase delay regions. The stereoscopic display module of claim 21, wherein the heat resistant adhesive layer has a thickness greater than 30 micrometers. The stereoscopic display module of claim 21, wherein the heat resistant adhesive layer has a heat resistance temperature greater than or equal to 80 degrees Celsius. The stereoscopic display module of claim 21, wherein the display module is a liquid crystal display panel. The stereoscopic display module of claim 21, wherein the display module comprises an active device array substrate, a liquid crystal layer, a pair of substrates, a first polarizing film and a second polarizing film, the liquid crystal The layer is disposed between the active device array substrate and the opposite substrate, the active device array substrate is disposed between the first polarizing film and the liquid crystal layer, and the opposite substrate is disposed on the second polarizing film and the liquid crystal layer And the patterned phase retardation film is attached to the second polarizing film by the heat resistant adhesive layer. The stereoscopic display module of claim 21, wherein the display module comprises an active device array substrate, a liquid crystal layer, a pair of substrates, a first polarizing film and a second polarizing film, the liquid crystal The layer is disposed between the active device array substrate and the opposite substrate, the active device array substrate is disposed between the first polarizing film and the liquid crystal layer, and the opposite substrate is disposed on the second polarizing film and the liquid crystal layer And the patterned phase retardation film is attached to the first polarizing film by the heat resistant adhesive layer. A stereoscopic display module manufacturing system for forming a display module into a stereoscopic display module, the stereoscopic display module manufacturing system comprising: a displacement control bearing platform for carrying and moving the display module; a heating device for heating a phase retardation film attached to the display module; a pair of bit devices for aligning the display module with the heating device; and a control unit for controlling the Displacement controls the relative position of the load bearing platform and the heating device such that the heating device heats a portion of the phase retardation film, wherein the partial region includes a plurality of sub-regions spaced apart. The manufacturing system of the stereoscopic display module according to claim 32, wherein the heating device is a laser generator, a thermal resistance wire or a hot stamp. The system for manufacturing a stereoscopic display module according to claim 32, wherein the alignment device comprises an image sensor for sensing a pixel image of the display module. The manufacturing system of the stereoscopic display module of claim 34, wherein the control unit moves the displacement control carrier platform according to the image signal transmitted by the image sensor. The system for manufacturing a stereoscopic display module according to claim 34, wherein the display module has at least one pair of bit marks, and the image sensor is configured to sense the alignment mark. The manufacturing system of the stereoscopic display module according to claim 32, wherein the alignment device is a precision bearing surface on the displacement control bearing platform, and when the display module bears against the precision bearing The alignment of the display module with the heating device is completed.