KR101027312B1 - Display apparatus with fabric type printed circuit board and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a display device using a woven printed circuit board and a method of manufacturing the same.

According to an exemplary embodiment of the present invention, a display apparatus includes a fabric type printed circuit board including a fabric line, a low line and a column line formed by patterning a conductive material on the fabric, a plurality of light emitting devices and low lines connected to one side of the low line and the column line; And a semiconductor device connected to the other side of the column line.

The display device according to the present invention is formed by using a fabric type printed circuit board formed by patterning a conductive material on a fabric, thereby minimizing a user's foreign feeling when mounted on a garment. In addition, by using the same fabric as the material of the garment, it is possible to wash with the garment.

Wearable computers, printed circuit boards, conductive materials, conductive fibers, light emitting diodes (LEDs)

Description

Display apparatus using fabric type printed circuit board and its manufacturing method {DISPLAY APPARATUS WITH FABRIC TYPE PRINTED CIRCUIT BOARD AND MANUFACTURING METHOD THEREOF}

The present invention relates to a display device using a woven printed circuit board and a method of manufacturing the same.

Recently, there is a growing interest in a wearable computer that integrates various digital devices used in daily life and its functions into clothing. As interest in wearable computers increases, display devices that can be mounted on clothing have been developed. Such display apparatuses are generally manufactured to have flexible characteristics using flexible substrates. However, flexible substrates are less flexible than fabrics because they have mechanical and physical properties that are different from those of garments. Accordingly, when the user wears a garment equipped with an existing display device, the user may feel a foreign object. In addition, when the conventional display device is mounted on a garment, there is a problem that washing is not easy depending on the material of construction.

SUMMARY OF THE INVENTION An object of the present invention for solving this problem is to provide a display device that is minimal in foreign matter and washable.

A display device according to the present invention includes a plurality of light emitting devices and row lines connected to one side of a fabric type printed circuit board, a row line and a column line including a row line and a column line formed by patterning a conductive material on the fabric and the fabric; And a semiconductor device connected to the other side of the column line to control on / off of the light emitting device.

It is preferable to further include a transparent molding formed on the fabricated printed circuit board and the light emitting device.

The transparent molding portion preferably includes polyurethane.

It is preferable to further include an insulating layer formed between the row line and the column line.

One side of at least one line of the row line and the column line connected to the light emitting element is preferably separated from each other and connected to each other through conductive fibers.

The conductive material preferably comprises silver, polymer, nylon and Cyclohexanone.

The other side of the row line and the column line and the semiconductor element are preferably wire bonded through a conductive adhesive.

One side of the row line and column line and both ends of the light emitting device is preferably bonded through a conductive adhesive.

According to an aspect of the present invention, there is provided a method of manufacturing a display device, the method including: forming a low line and a column line by patterning a conductive material on a fabric; Bonding the semiconductor substrate to the other side of the row and column lines;

The method may further include forming a transparent molding part on the fabricated printed circuit board and the light emitting device.

The transparent molding portion preferably includes polyurethane.

Fabricated printed circuit board forming step,

Arranging a first mask having a low line pattern on the first fabric and a second mask having a column line pattern on the second fabric, respectively; and the first fabric and second through the first mask and the second mask. Applying a conductive material onto the fabric to pattern the rowline and the columnline, respectively, and arranging the rowline comprising the patterned first fabric and the columnline comprising the second fabric to cross each other. Do.

Fabricated printed circuit board forming step,

Arranging a mask on which one side of the row line and the column line intersect each other and having a pattern separated from each other, and patterning the line and column lines by applying a conductive material on the fabric through the mask; And electrically connecting between the separated low line and the separated line of the column line through conductive fibers.

In the step of bonding the light emitting device,

One side of the row line and the column line and both ends of the light emitting device are preferably bonded through a conductive adhesive.

The conductive material preferably contains silver, a polymer and Cyclohexanone.

The other side of the row line and the column line and the semiconductor element are preferably wire bonded through a conductive adhesive.

The display device according to the present invention is formed by using a fabric type printed circuit board formed by patterning a conductive material on a fabric, thereby minimizing a user's foreign feeling when mounted on a garment. In addition, by using the same fabric as the material of the garment, it is possible to wash with the garment.

In addition, according to the manufacturing method of the display device according to the present invention, unlike the conventional display device, by forming a circuit by patterning a conductive material on the clothing or fabric itself to minimize the chemical and electrical processing process, thereby increasing the productivity It has an effect.

Hereinafter, with reference to the accompanying drawings will be described in detail preferred embodiments of the present invention.

[First Embodiment]

1 is a diagram illustrating a display device according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view of the display device illustrated in FIG. 1 in a direction A-A '.

Referring to FIG. 1, the display apparatus 100 according to the first exemplary embodiment of the present invention includes a fabric 111, a row line 113 and a column line 115 formed by patterning a conductive material on the fabric 111. A plurality of light emitting devices 120 connected to one side of the fabric printed circuit board 110, the row line 113 and the column line 115, and the other side of the row line 113 and the column line 115 including And a semiconductor device 130 that controls on / off of the light emitting device 120.

The fabricated printed circuit board 110 includes a fabric 111 and a row line 113 and a column line 115 formed by patterning a conductive material on the fabric 111. Conductive materials can include silver, polymers, nylon, and cyclohexanone. One side of the row line 113 and the column line 115 is connected to the light emitting device 120. In addition, one side of the row line 113 and the column line 115 is formed to cross each other. As shown in FIG. 2, a row line 113 may be formed on the fabric 111a, and a column line 115 may be formed on the row line 113. In addition, an insulating layer 111b may be further formed between the row line 113 and the column line 115. The insulating layer 111b may be the same fabric as the garment material. Therefore, the row line 113 and the column line 115 are formed to cross each other on different layers. In addition, one side of the row line 113 and the column line 115 may be formed so that the light emitting devices 120 may be arranged in an array of n by m or n by n type.

As shown in FIG. 1, the light emitting device 120 is connected to one side of the row line 113 and the column line 115. As shown in FIG. 2, both electrodes of the light emitting device 120 are bonded to the row line 113 and the column line 115 through the conductive adhesive 140. As the light emitting device 120, a light emitting diode (LED) may be applied.

As shown in FIG. 1, the semiconductor device 130 is connected to the other side of the row line 113 and the column line 115 on the fabric 111 to control on / off of the light emitting device 120. . As the semiconductor device 130, a microcomputer having a general-purpose input / output port may be applied. As illustrated in FIG. 5, the chip pads of the general-purpose input / output ports of the semiconductor device 130 may be wire bonded to the other side of the row line 113 and the column line 115 by using a conductive adhesive.

The semiconductor device 130 may be assigned a signal of logic 1 or logic 0 for a desired time at a moment desired by the user through firmware download. Here, logic 1 and logic 0 mean signals corresponding to the power supply level and the ground level, and may be input and output through the general-purpose input / output port of the semiconductor device 130. The light emitting device 120 has a property of being turned on / off in accordance with the direction of the current. For example, when the power level signal is applied to the row line 113 and the ground level signal is applied to the column line 115, the forward bias is applied to the low line 113, the light emitting device 120, and the column line 115. Voltage can be sensed. Accordingly, the light emitting device 120 may be turned on. In addition, when the ground level signal is applied to the low line 113 and the power level signal is applied to the column line 115, the reverse bias voltage is applied to the low line 113, the light emitting device 120, and the column line 115. Can be detected. Accordingly, the light emitting device 120 may be turned off. On the other hand, when the same level of signal is applied to the row line 113 and the column line 115, since no current flows in the light emitting device array, the light emitting device is turned off. Therefore, the array of the light emitting device 120 may be driven by adjusting the allocation time of the logic signal applied to the general-purpose input / output port of the semiconductor device 120. In this case, the signal for controlling the array of light emitting devices 120 preferably has a period within a range in which the on / off of the light emitting devices 120 is not visually recognized by the afterimage effect of light.

As shown in FIG. 2, the transparent molding part 140 may be formed on the fabricated printed circuit board 110 and the light emitting device 120. The transparent molding part 140 may be formed including polyurethane.

Second Embodiment

3 is a diagram illustrating a display device according to a second embodiment of the present invention. FIG. 4 is a cross-sectional view of the display device illustrated in FIG. 3 in the B-B 'direction.

Referring to FIG. 3, the display apparatus 200 according to the second exemplary embodiment of the present invention includes a fabric 211, a row line 213 and a column line 215 formed by patterning a conductive material on the fabric 211. A plurality of light emitting devices 220 connected to one side of the fabric type printed circuit board 210, the row line 213 and the column line 215, and the other side of the row line 213 and the column line 215 And a semiconductor device 230 that controls on / off of the light emitting device 220.

The fabricated printed circuit board 210 includes a fabric 211 and a row line 213 and a column line 215 formed by patterning a conductive material on the fabric 211. The conductive material forming the row line 213 and the column line 215 may include silver, polymer, nylon, and cyclohexanone. One side of the row line 213 and the column line 215 is connected to the light emitting device 220. In addition, one side of at least one line of the row line 213 and one side of the column line 215 connected to the light emitting device 220 may be separated from each other and connected to each other through the conductive fiber 217. For example, as shown in FIG. 4, the row line 213 connected to the light emitting device 220 may be formed separately from each other with the column line 215 therebetween. One side of the row line 213 separated from each other may be electrically connected to each other through the conductive fiber 217. The shape of the row line 213 and the column line 215 is not limited to those shown in FIGS. 3 and 4, but one side of the column line 215 is separated from each other to be connected through the conductive fiber 217. May be Thus, the row line 213 and the column line 215 formed on the fabric 211 may be formed on the same layer.

As illustrated in FIG. 3, the light emitting device 220 is connected to one side of the row line 213 and the column line 215. As shown in FIG. 4, both electrodes of the light emitting device 220 are bonded to the row line 213 and the column line 215 separated from each other through the conductive adhesive 240. As the light emitting device 220, a light emitting diode (LED) may be applied.

As illustrated in FIG. 3, the semiconductor device 230 is connected to the other side of the row line 213 and the column line 215 on the fabric 211 so as to control on / off of the light emitting device 220. . As the semiconductor device 230, a microcomputer having a general-purpose input / output port may be applied. The chip pad of the general-purpose input / output port of the semiconductor device 130 may be wire-bonded with the other side of the row line 213 and the column line 215 through the conductive adhesive.

As shown in FIG. 4, the transparent molding part 250 may be formed on the fabricated printed circuit board 210 and the light emitting device 220. The transparent molding part 250 may be formed including polyurethane.

The display device according to the present invention is formed by using a fabric type printed circuit board formed by patterning a conductive material on a fabric, thereby minimizing a user's foreign feeling when mounted on a garment. In addition, by using the same fabric as the material of the garment, it is possible to wash with the garment.

Hereinafter, a method of manufacturing a display device according to the present invention will be described in detail with reference to the accompanying drawings.

6 is a view illustrating a method of manufacturing the display device illustrated in FIGS. 1 and 3.

Referring to FIG. 6 in conjunction with FIGS. 1 and 2, a display manufacturing method according to the present invention includes a step of forming a row line 113 and a column line 115 by patterning a conductive material on a fabric. Bonding the printed circuit board forming step (S1), one side of the row line 113 and the column line 115 and the plurality of light emitting devices 120 (S2) and the row line 113 and the column line 115. Bonding the other side and the semiconductor device 130 (S3). In addition, the method may further include forming a transparent molding part 140 on the fabricated printed circuit board 110 and the light emitting device 130 (S4).

<Step of Forming Fabric Printed Circuit Board>

Woven printed circuit boards can be formed in two ways. First, a first method of forming a woven printed circuit board will be described with reference to FIGS. 1 and 2.

1 and 2 show a display device including a fabricated printed circuit board formed by the first method.

First, a first mask in which the pattern of the row line 113 is formed on the first fabric 111a and a second mask in which the pattern of the column line 115 is formed on the second fabric 111b may be disposed. . Thereafter, the conductive material may be applied onto each of the fabrics through the disposed masks to pattern the row line 113 and the column line 115. In this case, the conductive material may include silver, a polymer, and cyclohexanone. Subsequently, as shown in FIG. 7, one side of the patterned column line 115 may be arranged to intersect with one side of the row line 113. In this case, the column line 115 may be arranged on the row line 113 together with the second fabric 111b formed under the column line 115. Here, it is preferable to arrange so that one side of the row line 113 and the column line 115 formed on the first fabric 111a can be formed in an array such as n by m or n by n.

Next, a second method of forming a woven printed circuit board will be described in detail with reference to FIGS. 3 and 4.

3 and 4 illustrate a display device including a fabricated printed circuit board formed by the second method.

First, a mask may be disposed on the fabric 211 on which the other side of the row line 213 and the column line 215 cross each other, and a pattern is formed to separate each other. More specifically, a mask may be disposed such that one side of the row line 213 and the column line 2115 may be formed in an array pattern such as n by m or n by n. Thereafter, the conductive material may be applied onto the fabric 211 through the disposed mask to pattern the row line 213 and the column line 215. In this case, the conductive material may include silver, a polymer, and cyclohexanone. Therefore, as shown in FIG. 4, the row lines 213 patterned on the fabric 211 may be formed to be separated from each other with the column lines 215 therebetween. Then, one side of the row line 213 separated from each other may be electrically connected to each other through the conductive fiber 217. Here, the conductive fiber 217 may be used in which a portion of the coating film is removed so that one side of the row lines 213 separated from each other may be electrically connected. A portion of the conductive fiber 217 exposed by removing a portion of the coating layer may be connected to one side of the row line 213 separated from each other, and then bonded through the conductive adhesive 240.

Bonding the light emitting element

As shown in FIG. 7, both electrodes of the light emitting device 120 may be disposed on one side of the row line 113 and the column line 115, respectively. Afterwards, as shown in FIG. 2, both electrodes of the light emitting device 120 may be bonded to one side of the row line 113 and the column line 115 through the conductive adhesive 140, respectively.

<Step of Bonding Semiconductor Device>

As shown in FIG. 5, the semiconductor device 130 may be wire bonded to the other side of the row line 113 and the column line 115 using a conductive adhesive or the like. In this case, the semiconductor device 130 may be a microcomputer having a general-purpose input / output port. Therefore, the general-purpose input / output ports of the semiconductor device 130 may be electrically connected to the row line 113 and the column line 115 connected to the light emitting device 120 through a wire and a conductive adhesive.

<Step of forming transparent molding part>

As shown in FIG. 2, the transparent molding part 140 may be formed to cover the fabricated printed circuit board 110 and the light emitting device 120. The transparent molding part 140 may be formed on the fabricated printed circuit board 110 and the light emitting device 120 including polyurethane.

According to the manufacturing method of the display device of the present invention, by forming a circuit by patterning a conductive material on the clothing or fabric itself, it is possible to minimize the chemical and electrical processing process, thereby increasing the productivity.

As described above, those skilled in the art to which the present invention pertains will understand that the present invention may be implemented in other specific forms without changing the technical spirit or essential features. Therefore, the embodiments described above are to be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the following claims rather than the above description, and the meaning and scope of the claims And all changes or modifications derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

1 is a view showing a display device installed in a garment according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line AA ′ of the display device illustrated in FIG. 1.

3 is a view showing a display device according to a second embodiment of the present invention.

4 is a cross-sectional view taken along the line BB ′ of the display device illustrated in FIG. 3.

6 and 7 illustrate a method of manufacturing a display device according to the present invention.

******** Explanation of symbols for the main parts of the drawing ********

100: display device

111: fabric

113, 213: Lowline

115, 215: column line

120, 220: light emitting element

130, 230: semiconductor device

Claims (16)

A fabric type printed circuit board including a fabric and a row line and a column line formed by patterning a conductive material on the fabric; A plurality of light emitting devices connected to one side of the row line and the column line; And A semiconductor device connected to the other side of the row line and the column line to control on / off of the light emitting device; The row line and the column line is formed to cross each other, characterized in that the insulating layer is formed between the row line and the column line, a display device using a printed circuit board. A fabric type printed circuit board including a fabric and a row line and a column line formed by patterning a conductive material on the fabric; A plurality of light emitting devices connected to one side of the row line and the column line; And A semiconductor device connected to the other side of the row line and the column line to control on / off of the light emitting device; The row lines are formed separately from each other with the column line therebetween, or the column lines are formed separately from each other with the row line therebetween, wherein the separated lines are electrically connected through conductive fibers. Display device using a fabric type printed circuit board. The method according to claim 1 or 2, Further comprising a transparent molding formed on the fabric type printed circuit board and the light emitting device, The transparent molding unit comprises a polyurethane (Polyurethane), a display device using a woven printed circuit board. delete delete The method according to claim 1 or 2, The conductive material is a display device using a woven printed circuit board, including all of the silver, polymer, nylon and Cyclohexanone. The method according to claim 1 or 2, And the other side of the row line and the column line and the semiconductor element are wire-bonded with a conductive adhesive. The method according to claim 1 or 2, One side of the row line and the column line and both ends of the light emitting device is bonded by a conductive adhesive, a display device using a fabric-type printed circuit board. Forming a printed circuit board including patterning a conductive material on the fabric to form a row line and a column line; Bonding a plurality of light emitting devices between the row line and one side of the column line; And Bonding a semiconductor device to the other side of the row line and the column line; The fabricated printed circuit board forming step, Disposing a first mask having a pattern of the row lines on a first fabric and a second mask having a pattern of the column lines on a second fabric; Applying the conductive material onto the first fabric and the second fabric through the first mask and the second mask to pattern the row lines and the column lines, respectively; And And arranging one side of the row line including the patterned first fabric and the column line including the second fabric to cross each other. Forming a printed circuit board including patterning a conductive material on the fabric to form a row line and a column line; Bonding a plurality of light emitting devices to one side of the row line and the column line; And Bonding a semiconductor device to the other side of the row line and the column line; The fabricated printed circuit board forming step, Disposing a mask having a pattern formed on the fabric such that one side of the row line and the column line cross each other and are separated from each other; Applying the conductive material onto the fabric through the mask to pattern the row lines and the column lines; And And electrically connecting between the separated lines of the patterned row line and the column line through conductive fibers. 11. The method according to claim 9 or 10, The method may further include forming a transparent molding part on the fabricated printed circuit board and the light emitting device. The transparent molding unit comprises a polyurethane (Polyurethane), the manufacturing method of the display device using a printed circuit board. delete delete 11. The method according to claim 9 or 10, Bonding the light emitting device; One side of the row line and the column line and both ends of the light emitting device are bonded to each other through a conductive adhesive, a manufacturing method of a display device using a fabric-type printed circuit board. 11. The method according to claim 9 or 10, The conductive material includes silver, a polymer and cyclohexanone, the method of manufacturing a display device using a printed circuit board. 11. The method according to claim 9 or 10, The other side of the row line and the column line and the semiconductor device is wire bonded via a conductive adhesive, a manufacturing method of a display device using a printed circuit board.

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