TWI498627B - Display, repair method of displays and manufacture method of displays - Google Patents

Description

Display, display repair method, and display manufacturing method

The present invention relates to a display, a method of repairing a display, and a method of manufacturing the display, and more particularly to a method of repairing a defect in a display, a display using the same, and a method of manufacturing a display using the same.

The display technology is becoming more and more sophisticated, which makes the current display have the advantages of high resolution and thin size. In order to realize high-resolution display, the semiconductor manufacturing technology and process technology are also improved, but the wire can not be avoided in the manufacturing process. In the case of an open circuit, that is, a so-called open circuit defect, if the subsequent defect repair cannot be performed for the open circuit defect, or the repair method is not satisfactory, excessive waste sheets are often caused.

In the prior art, there is still a limitation on the position of the circuit breaker defect that can be repaired for the repair of the display, and the method for repairing the position of the various circuit breaker defects is still ineffective, and a repair method for the display position of various circuit breaker defects is provided. In terms of manufacturing costs, there should be help.

The embodiment of the invention provides a repairing method, which has a wider aspect of repairable open circuit defects than the prior art. Embodiments of the present invention also provide a display having a corresponding repairing device that has a wider variety of repairable open circuit defects. Another embodiment of the present invention provides a The display manufacturing method using this repair method.

According to an embodiment of the invention, a display includes a plurality of pixels, a plurality of data lines, a data driver, a first repair line, and a second repair line. The data line is electrically coupled to the pixel; the data driver is electrically coupled to the data line; the first repairing line is electrically coupled to the data driver via the first soldering point, and the first repairing line and the pixel are respectively located on opposite sides of the data driver, and the first A soldering contact and a pixel are respectively located on opposite sides of the data driver; the second repairing line is electrically coupled to the specific data line and the first repairing line in the data line, and the pixel is located between the second repairing line and the data driver.

Optionally, in the above embodiment, the first repairing line and the data line have a plurality of first overlapping positions, and the data driver is located between the first overlapping position and the pixel.

Optionally, in the above embodiment, the second repairing line and the data line have a plurality of second overlapping positions, the pixel is located between the second overlapping position and the data driver; and the second repairing line is used for selectively and the data line. The specific data line of the open circuit defect is electrically coupled.

Optionally, the first repairing line in the above embodiment is configured to be electrically coupled to a specific data line having a disconnection defect in the data line.

Optionally, the specific data line in the above embodiment has a first line segment and a second line segment separated by a disconnection defect; the first line segment is electrically coupled to the data driver, and the first fusion point is electrically coupled to the first repair line. And the first line segment; and the second repair line and the second line segment have a second fusion point, and the second fusion point and the data driver are respectively located on opposite sides of the pixel.

Optionally, the display device further includes a signal buffer electrically coupled between the first repairing line and the second repairing line; and the data driver is further configured to sequentially pass the first repairing line, the signal buffer, and The second repairing line provides a data signal to the pixels electrically coupled to the specific data line.

According to another embodiment of the present invention, a repair method for a display is provided for repairing a display. The display has a plurality of pixels, a plurality of data lines electrically coupled to the pixels, a data driver placement area, a first repair line, and a second repair. line. The data driver placement area is configured to set a data driver electrically coupled to the data line, the data driver placement area is located between the first repair line and the pixel, and the pixel is located between the second repair line and the data driver placement area. The method comprises: detecting a display, and finding a specific data line in the data line, the specific data line having a first line segment and a second line segment separated by a disconnection defect; forming a first fusion line and a first fusion point of the first line segment The first fusion contact point and the pixel are respectively located on opposite sides of the data driver placement area; and the second fusion line forming the second repair line and the second line segment, the second fusion point and the data driver placement area are respectively located on opposite sides of the pixel .

Optionally, in the above embodiment, the first repairing line and the data line have a plurality of first overlapping positions, and the data driver seating area is located between the first overlapping position and the pixel.

Optionally, the first repairing line in the above embodiment is configured to be electrically coupled to the specific data line having a disconnection defect in the data line.

According to still another embodiment of the present invention, a method of manufacturing a display is provided. The method includes performing the above-described display repairing method, and placing a data driver in a data driver placement area to electrically couple the data driver to the data line.

The first repairing line and the pixel in the embodiment of the present invention are respectively located on opposite sides of the data driver, and the data driver pin corresponding to the disconnection defect data line is electrically coupled via the first fusion point, because the first repair is performed. The line and the pixel are respectively located on opposite sides of the data driver, so the repairing method and the corresponding device can repair the open circuit defect range.

100, 200, 300‧‧‧ display

110‧‧ ‧ pixels

112[1], 112[2], 112[n-1], 112[n]‧‧‧ data lines

114‧‧‧Specific data line

1141‧‧‧First line segment

1142‧‧‧second line

132‧‧‧ scan line

120‧‧‧First repair line

122‧‧‧Second repair line

124‧‧‧Second welding joint

130‧‧‧Signal Buffer

140‧‧‧ third repair line

141‧‧‧ third welding joint

210‧‧‧First fusion joint

310‧‧‧Data Drive

S400‧‧‧Repair method

S500‧‧‧Manufacturing method

S410, S420, S430, S510‧‧‧ steps

DS‧‧‧Information Signal

BA‧‧‧Data Drive Placement Area

FA‧‧‧ fanout area

AA‧‧‧ display area

DF‧‧‧breaking defect

1 is a schematic diagram of a first type of open circuit defect of a display according to a first embodiment of the present invention; FIG. 2 is a schematic view of a second type of open circuit defect of the display according to the first embodiment of the present invention; and FIG. 3 is a second embodiment of the display for mounting a data drive FIG. 4 is a flow chart of a method for repairing a display according to a second embodiment of the present invention; and FIG. 5 is a flow chart showing a method for manufacturing a display according to a third embodiment of the present invention.

The invention is described in detail below with reference to the accompanying drawings, which are not intended to limit the scope of the invention.

Fig. 1 is a schematic view showing the first type of open circuit defect of the display of the first embodiment of the present invention. The display 100 in FIG. 1 includes a plurality of pixels 110, a plurality of data lines 112[1], 112[2]~112[n-1], 112[n], a first repairing line 120, and a disconnection defect DF. The display 100 can further include a plurality of scan lines 132, a second repair line 122, and a signal buffer (Buffer) 130. The display 100 includes a data driver placement area BA, a fan out area FA, and a display area AA.

A plurality of pixels 110 are located within the display area AA, and different filled materials may represent pixels 110 of different colors. The first repairing line 120 is located on the side of the data driver placement area BA with respect to the phase element 110, and spans the data lines 112[1], 112[2]~112[n-1], 112[n] and the data lines. 112[1], 112[2]~112[n-1], 112[n] have a plurality of first overlapping positions on the side of the data driver placement area BA with respect to the pixel 110. The second repair line 122 is located at the pixel 110 relative to the data drive One side of the placement area BA, and across the data lines 112[1], 112[2]~112[n-1], 112[n] and the data lines 112[1], 112[2]~112[ N-1], 112[n] have a plurality of second overlapping positions on the side of the pixel 110 with respect to the data driver seating area BA. In other words, the first repairing line 120 and the plurality of pixels 110 are respectively located on opposite sides of the data driver placement area BA, and the data driver placement area BA is located between the first overlapping position and the plurality of pixels 110. The plurality of pixels 110 are located between the second repairing line 122 and the data driver placement area BA, and the plurality of pixels 110 are located between the second overlapping position and the data driver placement area BA. In addition, in one embodiment, the data lines 112[1], 112[2]~112[n-1], 112[n] span the opposite sides of the data driver placement area BA.

The scan line 132 is configured to receive the scan signal to control the pixel 110 update according to the scan signal. The data lines 112[1], 112[2]~112[n-1], 112[n] are electrically coupled to the pixel 110 and the data lines 112[1], 112[2]~112[n-1], 112 [n] The data driver placement area BA is sequentially extended to the fan-out area FA and the display area AA, and the data lines 112[1], 112[2]~112[n-1], 112[n] are used to provide data signals. The DS is applied to the pixel 110 such that the pixel 110 displays an image based on the data signal DS. And the specific data line 114 in the data lines 112[1], 112[2]~112[n-1], 112[n] splits the specific data line 114 due to the open defect DF during the extension to the display area AA. It is a first line segment 1141 and a second line segment 1142. If not repaired, the data signal DS transmitted by the data drive placement area BA toward the display area AA to be supplied to the corresponding pixel 110 will not be normally transmitted to the entire row of pixels 110. However, the other data lines 112[1], 112[2]~112[n-1], 112[n] without the open circuit defect DF are used to receive the data signal DS by the data driver 310, and transmit the data signal DS to the office. Corresponding pixel 110.

The display 100 can also selectively set the third repairing line 140. The third repairing line 140 is located between the fan-out area FA and the display area AA. If the open circuit defect DF occurs between the display area AA as shown in the first figure, Specific data line 114 by means of fusion (for example, by laser welding) Forming a third fusion splice point 141 with the interlaced position of the third repairing line 140 to electrically couple with each other, and interlacing the second repairing line 122 with the specific data line 114 to form a second splice junction 124 to electrically electrically Coupling. Therefore, the data signal DS can enter the display area AA through the first line segment 1141 and be transmitted to the pixel 110 electrically coupled to the first line segment 1141. In addition, the data signal DS can also be transmitted to the second repairing line 122 through the third repairing line 140, and then enter the display area AA from the side of the display area AA with respect to the fan-out area FA, and transmit to the second repairing line 122 via the second The line segment 1142 is electrically coupled to the pixel 110. In turn, the row of pixels 110 in which the open defect DF occurs can still operate normally. The third repairing line 140 may also be omitted in the specific embodiment, and the repairing function of the third repairing line 140 may be replaced by only the first repairing line 120 and the second repairing line 122.

In addition, since the transmission path of the data signal DS transmitted through the second repairing line 122 is long, the signal buffer 130 can be further selected, and the signal buffer 130 is electrically coupled to the first repairing line 120 and the The signal buffer 130 is also electrically coupled between the third repairing line 140 and the second repairing line 122. The signal buffer 130 can receive the data signal DS provided by the third repairing line 140 and is enhanced. It is then transmitted to the second repair line 122, thereby compensating for the effects due to long distance transmission. The signal buffer 130 can be, for example, a Voltage Follower.

Figure 2 is a schematic view showing a second type of open circuit defect of the display of the first embodiment of the present invention. The elements of the display 200 in Fig. 2 are the same as those in Fig. 1, with the difference that, as shown in Fig. 2, the breaking defect DF occurs between the fan-out area FA and the data drive seating area BA. It can be observed that even if the repairing method of FIG. 1 is repaired, since the data signal DS has not been able to enter the fan-out area FA, it cannot be supplied to the signal buffer 130 or the second repair line 122 by the third repairing line 140. Therefore, the second open circuit defect in FIG. 2 cannot be repaired only through the third repair line 140.

To repair the breaking defect DF occurring between the fan-out area FA and the data driver setting area BA, the first overlapping position of the first repairing line 120 and the specific data line 114 may be formed into a first welding point 210 by means of welding, and The position where the second repairing line 122 overlaps with the specific data line 114 is formed by welding to form the second welding point 124, because the first repairing line 120 is located on the side of the data driver seating area BA with respect to the phase element 110 (ie, the data driver is disposed The area BA is located between the first repair line 120 and the plurality of phases 110). Therefore, even if the open defect DF occurs between the fan-out area FA and the data drive placement area BA, the data signal DS can still pass through the first line in sequence. The segment 1141, the first fusion splice 126, the first repair line 120, the second repair line 122, and the second line segment 1142 are transmitted to corresponding pixels 110 in the display area AA.

In addition, the signal buffer 130 can be electrically coupled between the first repairing line 120 and the second repairing line 122. The signal buffer 130 can receive the data signal DS transmitted from the first repairing line 120 and enhance it and provide it to the second repairing line 122.

Figure 3 is a schematic diagram of the second figure display placement data driver. The difference between the display 300 of the third diagram and the display 200 is that the display 300 is provided with the data driver 310 in the data drive placement area BA. The data driver 310 has a plurality of output pins (not shown) electrically coupled to the corresponding data lines 112[1], 112[2]~112[n-1], 112[n], and the data driver 310 is configured to provide The pixel data signals DS. The data driver 310 is further electrically coupled to the first line segment 1141, and is further configured to sequentially pass through the first line segment 1141, the first repairing line 120, the signal buffer 130 (selected), the second repairing line 122, and The second line segment 1142 provides a data signal DS to the pixels electrically coupled to the second line segment. In addition to this, the placement of the data drive 310 can be performed before or after patching. The data driver 310 spans the first line segment 1141. Optionally, the data signal DS provided by the data driver 310 is directly output to the first line segment via the output pin of the data driver 310. 1141 is then provided to the first repair line 120 through the first fusion joint 210. In addition, the first repairing line 120 and the plurality of pixels 110 are respectively located on opposite sides of the data driver 310, and the first soldering point 210 and the multi-pixel 110 are respectively located on opposite sides of the data driver 310, and the plurality of pixels 110 are located in the second patching. Between line 122 and data driver 310. The data driver 310 is located between the first overlapping position and the plurality of pixels 110, and the plurality of pixels 110 are located between the second overlapping position and the data driver 310.

Fig. 4 is a flow chart showing a method of repairing a display according to a second embodiment of the present invention. The repair method S400 of Fig. 4 can be applied to the aforementioned displays 100, 200, and 300.

The repairing method S400 includes: Step S410: detecting the display 100, 200, 300, and finding a specific data line 114 in the data lines 112[1], 112[2]~112[n-1], 112[n], specific The data line 114 has a first line segment 1141 and a second line segment 1142 separated by a breaking defect DF; Step S420: forming a first repairing line 120 and a first line segment 1141 in a position of the data driver seating area BA relative to the pixel 110 a first fusion splice point 210 on the side (in other words, the first fusion splice point 210 and the pixel 110 are respectively located on opposite sides of the data driver placement area BA); and step S430: forming the second repair line 122 and the second line segment 1142 at the pixel 110 The second fusion splice 124 is opposite to the side of the data drive placement area BA (in other words, the second fusion splice 124 and the data drive placement area BA are respectively located on opposite sides of the pixel 110).

Specifically, step S410 is used to detect the display, and find a specific data line 114 having a disconnection defect DF among the data lines 112[1], 112[2]~112[n-1], 112[n], and thus According to the result of the detection, it is known which data line 112[1], 112[2]~112 must be repaired in the data lines 112[1], 112[2]~112[n-1], 112[n]. [n-1], 112[n].

Step S420 is based on the result of step S430 for a specific data line 114. After the repair, since the first repair line 120 spans the data lines 112[1], 112[2]~112[n-1], 112[n], the data to be welded can be selected according to the result of the detection in step S410. Lines 112[1], 112[2]~112[n-1], 112[n]. In step S420, the first repair line 120 and the first line segment 1141 may be formed at a first fusion splice point 210 on a side of the data driver placement area BA with respect to the pixel 110 by, for example, laser welding.

Step S420 also repairs the specific data line 114 according to the result detected in step S430. Since the second repair line 122 spans the data lines 112[1], 112[2]~112[n-1], 112[n], The data lines 112[1], 112[2]~112[n-1], 112[n] to be fused may be selected according to the result of the detection in step S410. The second repair line 122 and the second line segment 1142 are formed in the step S430 at the second fusion splice point 124 on the side of the pixel 110 with respect to the data driver placement area BA. Further, a transmission path capable of transmitting the data signal DS is formed.

Fig. 5 is a flow chart showing a method of manufacturing a display according to a third embodiment of the present invention. The manufacturing method S500 of Fig. 5 can be applied to the aforementioned displays 100, 200, and 300.

The manufacturing method S500 in FIG. 5 includes: Step S410: detecting the displays 100, 200, and 300, and finding out the specific ones of the data lines 112[1], 112[2]~112[n-1], 112[n] a data line 114, the specific data line 114 has a first line segment 1141 and a second line segment 1142 separated by a disconnection defect DF; Step S420: forming the first repair line 120 and the first line segment 1141 are located in the data driver placement area BA a first fusion splice point 210 on one side of the pixel 110; step S430: forming a second repair line 122 and a second line segment 1142 at a second fusion splice point 124 on a side of the pixel 110 relative to the data driver placement area BA; and step S510 : the placement data driver 310 is in the data drive placement area BA, so that The data driver 310 is electrically coupled to the data lines 112[1], 112[2]~112[n-1], 112[n].

In short, the manufacturing method S500 and the repairing method of the step S400 are performed, and the data drive 310 is placed in the data drive setting area BA. The repair method of performing step S400 and the placement of the data driver 310 are not in a sequential order.

In addition, the fan-out area FA of the display 100, 200, 300 may be on the substrate of the pixel 110 (such as a glass substrate) or on a flexible printed circuit board (FPC). The data driver placement area BA may also be on the substrate of the pixel 110 (Chip on Glass) or on a flexible printed circuit board.

In summary, the embodiment of the present invention transmits the data signal DS through the first repairing line 120 disposed on the other side of the phase element 110 in the data driver placement area BA, and can be repaired and contained in comparison with the third repairing line 140. The open defect DF between the fan-out area FA and the data drive placement area BA.

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.

300‧‧‧ display

110‧‧ ‧ pixels

112[1], 112[2], 112[n-1], 112[n]‧‧‧ data lines

114‧‧‧Specific data line

1141‧‧‧First line segment

1142‧‧‧second line

132‧‧‧ scan line

120‧‧‧First repair line

122‧‧‧Second repair line

124‧‧‧Second welding joint

130‧‧‧Signal Buffer

140‧‧‧ third repair line

210‧‧‧First fusion joint

310‧‧‧Data Drive

DS‧‧‧Information Signal

BA‧‧‧Data Drive Placement Area

FA‧‧‧ fanout area

AA‧‧‧ display area

DF‧‧‧breaking defect

Claims (10)

A display comprising: a plurality of pixels; a plurality of data lines electrically coupled to the pixels; a data driver electrically coupled to the data lines; and a first repair line electrically coupled via a first solder joint Connected to the data driver, the first repairing line and the pixels are respectively located on opposite sides of the data driver, and the first soldering point and the pixels are respectively located on opposite sides of the data driver; and a second repairing line And electrically connecting a specific data line of the data lines and the first repair line, and the pixels are located between the second repair line and the data driver. The display of claim 1, wherein the first repair line and the data lines have a plurality of first overlapping positions, and the data driver is located between the first overlapping positions and the pixels. The display device of claim 1 or 2, wherein the second repair line and the data lines have a plurality of second overlapping positions, the pixels being located between the second overlapping positions and the data drive; and the The second repairing line is configured to be electrically coupled to the specific data line having a disconnection defect in the data lines. The display device of claim 1 or 2, wherein the first repairing line is configured to be electrically coupled to the specific data line having a disconnection defect in the data lines. The display device of claim 1 or 2, wherein the specific data line has a first line segment and a second line segment separated by a disconnection defect; the first line segment is electrically coupled to the data driver, the first fusion line Pointly electrically coupling the first repairing line and the first line segment; and the second repairing line and the second line segment have a second welding point, the second welding point and the data driver are respectively located On opposite sides of the pixels. The display device of claim 1 or 2, wherein the display further includes a signal buffer electrically coupled between the first repair line and the second repair line; and the data driver is further configured to sequentially The first repairing line, the signal buffer, and the second repairing line provide a data signal to the pixels electrically coupled to the specific data line. A display repairing method for repairing a display, the display having a plurality of pixels, a plurality of data lines, a data driver placement area, a first repair line, and a second repair line, wherein the data lines are electrically coupled Connecting the pixels, the data driver placement area is configured to set a data driver electrically coupled to the data lines, where the data driver placement area is located between the first repair line and the pixels, and the pixels are located at the first Between the two repair lines and the data driver placement area, the method includes: detecting the display to find a specific data line of the data lines, the specific data line having a first line segment separated by a disconnection defect And a second line segment; forming a first welding line and a first welding point of the first line segment, the first welding point and the pixels are respectively located on opposite sides of the data driver placement area; and forming the first The second repairing line and a second welding point of the second line segment, the second welding point and the data driver placement area are respectively located on opposite sides of the pixels. The repairing method of claim 7, wherein the first repairing line and the data lines have a plurality of first overlapping positions, and the data driver seating area is located between the first overlapping positions and the pixels. The repairing method of claim 7 or 8, wherein the first repairing line is configured to be electrically coupled to the specific data line having the open circuit defect in the data lines. A method of manufacturing a display, comprising: performing the repairing method according to claim 7; and arranging a data driver in the data driver setting area, so that the data driver is electrically coupled to the data lines.