TWI484280B - Display device and manufacturing method of display device - Google Patents

Description

Display device and method of manufacturing display device

The present invention relates to a display device and a display device manufacturing method, and more particularly to a display device and a display device that vertically integrates a wireless communication module, an electronic paper module, and a substrate to make the display device smaller in area and lower in cost. Manufacturing method.

Please refer to FIG. 1. FIG. 1 is a schematic view showing a display device 100 for the prior art. As shown in FIG. 1 , the display device 100 includes an electronic paper module 102 and a Near Field Communication (NFC) module 104. The prior art utilizes a bonding process (Anisotropic Conductive Film bonding, The pins of the ACF electronic paper module 102 and the near field communication module 104 are used to integrate the electronic paper module 102 and the near field communication module 104 into the display device 100. However, the prior art has the following disadvantages: first, because The field communication module fabric is a high temperature process, but the electronic paper module bonding process is a normal temperature process. Therefore, the prior art uses a bonding process to integrate the electronic device module 102 with the pin of the near field communication module 104 to integrate the electronic device. The paper module 102 and the near field communication module 104 are relatively complicated in the bonding process. Second, since the electronic paper module 102 and the near field communication module 104 are independent modules, the display device 100 has a large size. Area and higher cost. Therefore, the prior art is not a good choice for producing the display device 100.

An embodiment of the invention provides a display device. The display device comprises a substrate, a wireless communication module and an electronic paper module. The wireless communication module is configured to receive a radio wave on the first side of the substrate, and convert the radio wave into an electric energy, wherein the wireless communication module is disposed on the first side of the substrate The substrate is planarized by a metallurgical tool; the electronic paper module is attached to the second side of the substrate in a normal temperature environment (20 ° C - 50 ° C), and displays an image by using the electrical energy, wherein the substrate The first side is relative to the second side of the substrate.

Another embodiment of the present invention provides a method of fabricating a display device. The manufacturing method includes a fabric-wireless communication module on a first side of the substrate; after the wireless communication module is disposed on the first side of the substrate, the substrate is planarized by a metallurgical tool; planarizing the substrate Thereafter, in a normal temperature environment, an electronic paper module is attached to the second side of the substrate, wherein the first side of the substrate is opposite to the second side of the substrate.

The present invention provides a display device and a method of manufacturing the display device. The display device and the manufacturing method are respectively configured to fabricate and attach a wireless communication module and an electronic paper module to a first side of a substrate and a second side of the substrate, wherein the first side of the substrate is opposite On the second side of the substrate, the electronic paper module receives the electrical energy converted by the wireless communication module through a hole in the substrate. Therefore, compared with the prior art, the present invention has the following advantages: First, because the present invention vertically integrates the wireless communication module, the electronic paper module, and the substrate, the display device has a small area; Because the electronic paper module directly receives the electrical energy converted by the wireless communication module through the hole in the substrate, the invention can save the wire between the wireless communication module and the electronic paper module. The cost of (bonding); third, because the electronic paper module directly receives power converted by the wireless communication module through a hole in the substrate, the display device does not require a battery.

Please refer to FIG. 2, which is a schematic diagram of a display device 200 according to an embodiment of the invention. The display device 200 includes a substrate 202, a wireless communication module 204, and an electronic paper module 206. The substrate 202 includes holes 208, 210, and 212. However, the present invention is not limited to the substrate 202 including only three 208, 210, and 212, that is, the substrate 202 may include a plurality of holes. The wireless communication module 204 is in a high temperature environment (for example, 130 ° C - 160 ° C), and the cloth is on the first side of the substrate 202. The wireless communication module 204 can be a near field communication (NFC). Module, a wireless local area network (WLAN) module, a purple bee short-range wireless transmission standard (IEEE 802.15.4, Zigbee) module, a Bluetooth module, a wireless wide area network (Wireless Wide Area Network (WWAN) module, a Global System for Mobile Communications (GSM) module, a General Packet Radio Service (GPRS) module, and a third-generation mobile communication technology (third generation, 3G) module, a fourth generation (4G) module or an Actor Network Theory+ (Ant+) module. In addition, in another embodiment of the present invention, the wireless communication module 204 is in a high temperature environment (for example, 130 ° C - 160 ° C), the cloth is on the first side of the substrate 202 and the second side of the substrate 202, wherein the substrate The first side of the 202 is the second side relative to the substrate 202. The wireless communication module 204 is configured to receive a radio wave and convert the wireless The electric wave is an electric energy. Please refer to FIG. 3 . FIG. 3 is a schematic diagram illustrating the planarization of the substrate 202 by a metallurgical tool 214 after the wireless communication module 204 is attached to the first side of the substrate 202 . After the wireless communication module 204 is attached to the first side of the substrate 202, the second side of the substrate 202 may be uneven due to the wireless communication module 204, so that the electronic paper module 206 cannot be closely adhered to the substrate 202. The second side causes bubble holes to be created. Therefore, as shown in FIG. 3, after the wireless communication module 204 is attached to the first side of the substrate 202, the substrate 202 is planarized by the tool 214, so that the electronic paper module 206 can be closely adhered to the substrate. The second side of 202. In addition, when the substrate 202 is an epoxy resin glass fiber (FR4) substrate, the substrate 202 is thicker; when the substrate 202 is a polyethylene terephthalate (PET) substrate or a polyphthalate In the case of a polyimide (PI) substrate, the substrate 202 is thin. However, the present invention is not limited to the substrate 202 being an epoxy resin glass fiber substrate, a polyethylene terephthalate substrate, or a polyimide (PI) substrate.

Referring to FIG. 4, FIG. 4 is a schematic view showing the electronic paper module 206 attached to the second side of the substrate 202 after the substrate 202 is planarized. The electronic paper module 206 is attached to the second side of the substrate 202 in a normal temperature environment (20 to 50 ° C). Then, after the electronic paper module 206 is attached to the second side of the substrate 202, the tool 214 is removed. The electronic paper module 206 is configured to receive the electrical energy converted by the wireless communication module 204 through the holes 208, 210, and 212 in the substrate 202, and display an image using the electrical energy. The electronic paper module 206 can be an Electro-Phoretic Display (EPD) electronic paper module, a Cholesteric Liquid Crystal (CHLC) electronic paper module, and an Active Matrix electronic paper mold. Group, a passive type (Segment Type) electronic paper mold Group or a Micro Electro Mechanical Systems (MEMS) electronic paper module. In addition, when the electronic paper module 206 is an electrophoretic electronic paper module, the electronic paper module 206 can also be a microcapsule electronic paper module and a microcup electronic paper module. Or a quick response liquid powder display (QR-LPD) electronic paper module. In addition, in another embodiment of the present invention, the electronic paper module 206 can be coupled to a power source, that is, the electronic paper module 206 can display an image by the power provided by the external power source.

Please refer to FIG. 5 and FIG. 6. FIG. 5 is a schematic diagram for explaining that the display device 200 further includes a protective layer 216, and FIG. 6 is a schematic view for explaining that the display device 200 further includes two protective layers 216 and 218. As shown in FIG. 5, when the display device 200 further includes a protective layer 216, the protective layer 216 is first attached to cover and protect the electronic paper module 206, and then the tool 214 is removed, wherein the protective layer 216 is transparent. The protective layer, and the protective layer 216 may be integrally formed or may be composed of a plurality of protection units. In another embodiment of the invention, display device 200 further includes two protective layers 216, 218. As shown in FIG. 6, when the display device 200 further includes two protective layers 216, 218, the protective layer 216 is first attached to cover and protect the electronic paper module 206, and then the tool 214 is removed. Then, the protective layer 218 is applied to cover and protect the wireless communication module 204. The protection layer 218 is the same as the protection layer 216, and details are not described herein.

Referring to FIG. 2, FIG. 3, FIG. 4, and FIG. 7, FIG. 7 is a flow chart showing a method of manufacturing a display device according to another embodiment of the present invention. The system of Figure 7 The manufacturing method is described by using the display device 200 of FIG. 2, FIG. 3 and FIG. 4, and the detailed steps are as follows: Step 700: Start; Step 702: The cloth wireless communication module 204 is on the first side of the substrate 202; Step 704 After the wireless communication module 204 is disposed on the first side of the substrate 202, the substrate 202 is planarized by the tool 214; Step 706: After the substrate 202 is planarized, the electronic paper module 206 is attached in a normal temperature environment. On the second side of the substrate 202; Step 708: After the electronic paper module 206 is attached to the second side of the substrate 202, the tool 214 is removed; Step 710: End.

In step 702, the wireless communication module 204 is in a high temperature environment (e.g., 130 ° C - 160 ° C), and the fabric is on the first side of the substrate 202, wherein the substrate 202 has holes 208, 210, and 212. The wireless communication module 204 can be a near field communication module, a wireless area network module, a purple bee short-range wireless transmission standard module, a Bluetooth module, a wireless wide area network module, and a global mobile communication. System module, a general packet wireless service technology module, a third generation mobile communication technology module, a fourth generation mobile communication technology module or a actor network theory module. In addition, in another embodiment of the present invention, the wireless communication module 204 is attached to the first side of the substrate 202 and the second side of the substrate 202 in a high temperature environment, wherein the first side of the substrate 202 is opposite to The second side of the substrate 202. In step 704, after the wireless communication module 204 is disposed on the first side of the substrate 202, The second side of the substrate 202 may be uneven due to the wireless communication module 204, so that the electronic paper module 206 cannot be completely adhered to the second side of the substrate 202. Therefore, as shown in FIG. 3, after the wireless communication module 204 is attached to the first side of the substrate 202, the substrate 202 is planarized by the tool 214, so that the electronic paper module 206 can be completely adhered to each other. The second side of the substrate 202.

In step 706, the electronic paper module 206 is attached to the second side of the substrate 202 in a normal temperature environment (20-50 ° C). The electronic paper module 206 is configured to receive the electrical energy converted by the wireless communication module 204 through the holes 208, 210, and 212 in the substrate 202, and display an image using the electrical energy. The electronic paper module 206 can be an electrophoretic electronic paper module, a cholesterol liquid crystal electronic paper module, an active matrix organic light emitting diode electronic paper module or a microelectromechanical system electronic paper module. In addition, when the electronic paper module 206 is an electrophoretic electronic paper module, the electronic paper module 206 can also be a micro-encapsulated electronic paper module, a micro-cup electronic paper module, or a fast-reacting liquid powder. The electronic paper module is displayed. Then, in step 708, after the electronic paper module 206 is attached to the second side of the substrate 202, the tool 214 is removed.

Referring to FIG. 5, FIG. 6, and FIG. 8, FIG. 8 is a flow chart showing a method of manufacturing a display device according to another embodiment of the present invention. The manufacturing method of FIG. 8 is illustrated by the display device 200 of FIGS. 5 and 6, and the detailed steps are as follows: Step 800: Start; Step 802: The cloth wireless communication module 204 is on the first side of the substrate 202; Step 804: After the wireless communication module 204 is disposed on the first side of the substrate 202, the substrate 202 is planarized by using the tool 214; Step 806: After the substrate 202 is planarized, the electronic paper mold is attached in a normal temperature environment. The group 206 is on the second side of the substrate 202; Step 808: After the electronic paper module 206 is attached to the second side of the substrate 202, the protective layer 216 is attached; Step 810: The tool 214 is removed; Step 812: End.

The difference between the embodiment of FIG. 8 and the embodiment of FIG. 7 is that, in step 808, after the electronic paper module 206 is attached to the second side of the substrate 202, the protective layer 216 is adhered, wherein the protective layer 216 (As shown in FIG. 5) is used to cover and protect the electronic paper module 206, wherein the protective layer 216 is a transparent protective layer, and the protective layer 216 may be integrally formed or may be composed of a plurality of protection units. Composed of. In another embodiment of the present invention, after the electronic paper module 206 is attached to the second side of the substrate 202, the protective layer 216 is formed. After the tool 214 is removed, the protective layer 218 is formed. As shown in FIG. 6, the two protective layers 216 and 218 are used to cover and protect the electronic paper module 206 and the wireless communication module 204, respectively. The protective layer 218 is the same as the protective layer 216, and details are not described herein.

In summary, the display device and the display device are provided by the wireless communication module and the electronic paper module respectively, and are respectively attached to the first side of the substrate and the second side of the substrate, wherein The first side of the substrate is opposite to the second side of the substrate, and the electronic paper module receives the electrical energy converted by the wireless communication module through the holes in the substrate. because Therefore, compared with the prior art, the present invention has the following advantages: First, because the invention is a vertically integrated wireless communication module, an electronic paper module and a substrate, the display device has a small area; and second, because the electronic paper mold The group directly receives the electric energy converted by the wireless communication module through the holes in the substrate, so the invention can save the cost of bonding between the wireless communication module and the electronic paper module; third, because the electronic paper module The power converted by the wireless communication module is directly received through the holes in the substrate, so the display device does not need a battery.

The above are only the preferred embodiments of the present invention, and all changes and modifications made to the scope of the present invention should be within the scope of the present invention.

100, 200‧‧‧ display devices

102, 206‧‧‧ Electronic paper module

104‧‧‧ Near Field Communication Module

202‧‧‧Substrate

204‧‧‧Wireless communication module

208, 210, 212‧ ‧ holes

214‧‧‧

216, 218‧‧ ‧ protective layer

700-710, 800-812‧‧‧ steps

Fig. 1 is a schematic view showing a display device for the prior art.

Fig. 2 is a schematic view showing a display device according to an embodiment of the present invention.

FIG. 3 is a schematic view showing the substrate being planarized by a metallurgy after the wireless communication module is placed on the first side of the substrate.

Fig. 4 is a schematic view showing the electronic paper module being attached to the second side of the substrate after the substrate is flattened.

Fig. 5 is a schematic view for explaining that the display device further includes a protective layer.

Figure 6 is a schematic view for explaining that the display device further includes two protective layers.

Fig. 7 is a flow chart showing a method of manufacturing a display device according to another embodiment of the present invention.

Fig. 8 is a flow chart showing a method of manufacturing a display device according to another embodiment of the present invention.

200‧‧‧ display device

202‧‧‧Substrate

204‧‧‧Wireless communication module

206‧‧‧Electronic paper module

208, 210, 212‧ ‧ holes

Claims (16)

A display device comprising: a substrate; a wireless communication module, the cloth member is on the first side of the substrate, for receiving a radio wave, and converting the radio wave into an electric energy; and an electronic paper module, wherein the electronic paper module The electronic paper module is attached to the second side of the substrate in a normal temperature environment, and displays an image by using the electrical energy; wherein the first side of the substrate is opposite to the second side of the substrate, and the wireless After the communication module fabric is on the first side of the substrate, the substrate is planarized by one of the first sides disposed on the substrate, and the electronic paper module is attached. The display device of claim 1, wherein the substrate has a plurality of perforations, and the electronic paper module is coupled to the wireless communication module through the plurality of perforations. The display device according to claim 1, wherein the substrate is an epoxy resin glass fiber (FR4) substrate, a polyethylene terephthalate (PET) substrate or a polyimide (polyimide). , PI) substrate. The display device of claim 1, wherein the electronic paper module is an Electro-Phoretic Display (EPD) electronic paper module. The display device of claim 4, wherein the electrophoretic electronic paper module is a microcapsule electronic paper module and a microcup. Electronic paper module or a quick response liquid powder display (QR-LPD) electronic paper module. The display device of claim 1, wherein the electronic paper module is a Cholesteric Liquid Crystal (CHLC) electronic paper module. The display device of claim 1, wherein the electronic paper module is an active matrix electronic paper module. The display device of claim 1, wherein the electronic paper module is a segment type electronic paper module. The display device of claim 1, wherein the electronic paper module is a Micro Electro Mechanical Systems (MEMS) electronic paper module. The display device of claim 1, wherein the wireless communication module is a near field communication (NFC) module, a wireless local area network (WLAN) module, and a purple bee is short. From the wireless transmission standard (IEEE 802.15.4, Zigbee) module, a Bluetooth module, a Wireless Wide Area Network (WWAN) module, a Global System for Mobile Communications (Global System for Mobile Communications, GSM) module, a general packet radio service (GPRS) module, a third generation (3G) module, a fourth A fourth generation (4G) module or an Actor Network Theory+ (Ant+) module. The display device of claim 1, further comprising: a protective layer for covering the electronic paper module. The display device of claim 1, further comprising: a second protection layer for covering the electronic paper module and the wireless communication module respectively. The display device of claim 1, wherein the electronic paper module is further coupled to a power source. A manufacturing method of a display device, comprising: a fabric-wireless communication module on a first side of a substrate; after the wireless communication module is disposed on a first side of the substrate, planarizing the substrate by using a metallurgical tool; And after planarizing the substrate, attaching an electronic paper module to the second side of the substrate in a normal temperature environment; wherein the first side of the substrate is opposite to the second side of the substrate, and the tooling system Provided on the first side of the substrate. The manufacturing method of claim 14, further comprising: attaching a protective layer on the electronic paper module; and removing the tool. The manufacturing method of claim 15, further comprising: bonding another protective layer on the wireless communication module.