CN103745662A - Display, repairing method of display and manufacturing method of display - Google Patents

Abstract

The invention provides a display, a repairing method of the display and a manufacturing method of the display. The data line is electrically coupled with the pixel; the data driver is electrically coupled with the data line; the first repair line is electrically coupled to the data driver through a first welding point, the first repair line and the pixel are respectively positioned at two opposite sides of the data driver, and the first welding point and the pixel are respectively positioned at two opposite sides of the data driver; the second repair line is electrically coupled to a specific data line of the data lines and the first repair line and is located at a side of the pixel opposite to the data driver.

Description

Display, display repair method, and display manufacturing method

technical field

The present invention relates to a display, a repairing method of the display and a manufacturing method of the display, in particular to a repairing method for the disconnection defect of the display, a display applicable to the method and a manufacturing method of the display using the repairing method.

Background technique

Display technology is becoming more and more sophisticated, which makes the current display have the advantages of high resolution and thin volume. In order to realize high resolution display, semiconductor manufacturing technology and manufacturing engineering technology are also improved, but it is still unavoidable. In the case of an open circuit, that is, the so-called open circuit defect, if the subsequent repair cannot be performed on the open circuit defect, or the repair method is not ideal, it will often result in too many waste chips.

In the repairing of displays in the prior art, there are still limitations on the locations of open circuit defects that can be repaired, and there is still nothing to do with the occurrence of partial open circuit defects. A repair method for displays that can be applied to various open circuit defect locations is provided. It should help in reducing the manufacturing cost of displays.

Contents of the invention

The embodiment of the present invention provides a repairing method, which can repair a wider range of open circuit defects than the prior art. The embodiment of the present invention also provides a display with a corresponding repairing device, which can repair a wider range of open circuit defects. The embodiment of the present invention further provides a display manufacturing method using the repairing method.

According to an embodiment of the present invention, a display is provided, including: 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 repair line is electrically coupled to the data driver through the first welding point, and the first repair line and the pixel are respectively located on opposite sides of the data driver, and the second A welding point and pixels are respectively located on opposite sides of the data driver; the second repair line is electrically coupled to a specific data line in the data lines and the first repair line, and the pixel is located between the second repair line and the data driver.

Optionally, in the above embodiment, the first repair line and the data line have multiple first overlapping positions, and the data driver is located between the first overlapping position and the pixel.

Optionally, in the above embodiment, the second repair line and the data line have a plurality of second overlapping positions, and the pixel is located between the second overlapping position and the data driver; the second repair line is used for selectively disconnecting the data line Defective specific data lines are electrically coupled.

Optionally, the first repairing line in the above embodiment is used to selectively electrically couple with a specific data line having an open defect among the data lines.

Optionally, the specific data line in the above embodiment has a first line segment and a second line segment separated by an open circuit defect; the first line segment is electrically coupled to the data driver, and the first welding 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 welding point, and the second welding point and the data driver are respectively located on opposite sides of the pixel.

Optionally, the display in the above embodiment further includes a signal buffer electrically coupled between the first repair line and the second repair line; and the data driver is also used to sequentially pass through the first repair line, the signal buffer and the The second repair line provides data signals to pixels electrically coupled to the specific data line.

According to another embodiment of the present invention, a method for repairing a display is provided, which is used 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. patch lines. The data driver placement area is used to set the 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 includes: detecting the display, finding a specific data line among the data lines, the specific data line has a first line segment and a second line segment separated by an open circuit defect; forming a first welding point between the first repair line and the first line segment , the first welding point and the pixel are respectively located on opposite sides of the data driver placement area; and the second welding point forming the second repair line and the second line segment, the second welding point and the data driver placement area are respectively located on opposite sides of the pixel .

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

Optionally, the first repairing line in the above embodiment is used to selectively electrically couple with the specific data line having an open defect among the data lines.

According to yet another embodiment of the present invention, a method for manufacturing a display is provided. The method includes performing the above-mentioned display repair method; and arranging a data driver in the data driver placement area, so that the data driver is electrically coupled to the data line.

In the embodiment of the present invention, the first repairing line and the pixels are respectively located on opposite sides of the data driver, and are electrically coupled to the data driver pins corresponding to the data line where the open-circuit defect occurs through the first welding point, because the first repairing line The pixels and pixels are respectively located on opposite sides of the data driver, so this repair method and its corresponding device can repair a wide range of open circuit defects.

Description of drawings

FIG. 1 is a schematic diagram of the first open circuit defect of the display according to the first embodiment of the present invention;

FIG. 2 is a schematic diagram of the second open circuit defect of the display according to the first embodiment of the present invention;

Fig. 3 is a schematic diagram after the display of Fig. 2 is placed with a data driver;

FIG. 4 is a flowchart of a repair method for a display according to a second embodiment of the present invention;

FIG. 5 is a flowchart of a manufacturing method of a display according to a third embodiment of the present invention.

reference sign

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 segment 132: Scanning line

120: The first repair line 122: The second repair line

124: Second welding point 130: Signal buffer

140: The third repair line 141: The third welding point

210: The first welding point 310: Data driver

S400: Repair method S500: Manufacturing method

S410, S420, S430, S510: step DS: data signal

BA: Data Drive Placement Area FA: Fan-Out Area

AA: Display area DF: Open circuit defect

Detailed ways

The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but the provided embodiments are not intended to limit the scope of the present invention.

FIG. 1 is a schematic diagram of a first open circuit defect of a display according to 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 repair line 120, and an open defect DF. In addition, the display 100 may further include a plurality of scan lines 132 , second repair lines 122 and a signal buffer (Buffer) 130 , and the display 100 includes a data driver arrangement area BA, a fan-out (Fan out) area FA and a display area AA.

A plurality of pixels 110 are located in the display area AA, and different filling materials may represent pixels 110 of different colors. The first repair line 120 is located on the side of the data driver arrangement area BA opposite to the pixel 110, and crosses the data lines 112[1], 112[2]~112[n-1], 112[n] and connects with the data line 112 [1], 112[2]˜112[n−1], 112[n] have a plurality of first overlapping positions on a side of the data driver placement area BA opposite to the pixel 110 . The second repair line 122 is located on the side of the pixel 110 relative to the data driver placement area BA, and crosses the data lines 112[1], 112[2]-112[n-1], 112[n] and connects with the data line 112 [1], 112[2]˜112[n−1], 112[n] have a plurality of second overlapping positions on a side of the pixel 110 relative to the data driver placement area BA. In other words, the first repairing line 120 and the plurality of pixels 110 are 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 . A plurality of pixels 110 are located between the second repair line 122 and the data driver placement area BA, and a 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] cross opposite sides of the data driver placement area BA.

The scan line 132 is used for receiving the scan signal, so as to control the updating of the pixels 110 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] extends from the data driver placement area BA to the fan-out area FA and the display area AA in sequence, and the data lines 112[1], 112[2]~112[n-1], 112[n] are used to provide data signals The DS is given to the pixel 110 so that the pixel 110 displays an image according to the data signal DS. However, the specific data line 114 among the data lines 112[1], 112[2]~112[n-1], 112[n] is divided by the open defect DF during the process of extending toward the display area AA. are the first line segment 1141 and the second line segment 1142 . If it is not repaired, the data signal DS transmitted from the data driver arrangement area BA to the display area AA to provide to the corresponding pixels 110 will not be normally transmitted to the pixels 110 of the entire column. But the other data lines 112[1], 112[2]～112[n-1], 112[n] without the open circuit defect DF are used for receiving the data signal DS by the data driver 310, and transmitting the data signal DS to it. Corresponding pixel 110 .

The display 100 can also selectively set the third repair line 140, the third repair line 140 is located between the fan-out area FA and the display area AA, if the disconnection defect DF occurs between the display area AA as shown in Fig. The way (for example, by laser welding), the staggered position of the specific data line 114 and the third repair line 140 to form the third welding point 141 to electrically couple each other, and the second repair line 122 and the specific data line 114 The alternate positions form the second welding points 124 to electrically couple with each other. 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 opposite to the fan-out area FA, and be transmitted to the second repairing line 122 via the second The line segment 1142 is electrically coupled to the pixels 110 . Furthermore, the row of pixels 110 where the disconnection defect DF occurs can still operate normally. The third repairing line 140 may not be provided in a specific embodiment, and the repairing function of the third repairing line 140 may be replaced only by the first repairing line 120 and the second repairing line 122 .

In addition, since the transmission path for transmitting the data signal DS through the second repair line 122 is relatively long, a signal buffer 130 may also be provided optionally, and the signal buffer 130 is electrically coupled to the first repair line 120 and the second repair line 122. Between the two repairing lines 122, 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 enhance It is then transmitted to the second repair line 122 to compensate for the impact caused by long-distance transmission. The signal buffer 130 can be, for example, a voltage follower (Voltage Follower).

FIG. 2 is a schematic diagram of a second disconnection defect of the display according to the first embodiment of the present invention. The elements of the display 200 in FIG. 2 are the same as those in FIG. 1 , the difference is that, as shown in FIG. 2 , the open defect DF occurs between the fan-out area FA and the data driver placement area BA. It can be observed that even if the data signal DS is repaired as shown in FIG. 1 , the data signal DS cannot enter the fan-out area FA, and thus cannot be provided to the signal buffer 130 or the second repair line 122 through the third repair line 140 . Therefore, only the third repair line 140 cannot repair the second type of disconnection defect as shown in FIG. 2 .

In order to repair the disconnection defect DF that occurs between the fan-out area FA and the data driver placement area BA, the first overlapping position of the first repair line 120 and the specific data line 114 can be welded to form a first fusion point 210, and The position where the second repair line 122 overlaps with the specific data line 114 is formed into a second weld point 124 by means of welding, because the first repair line 120 is located on the side of the data driver placement area BA relative to the pixel 110 (that is, the data driver placement area BA is located between the first repair line 120 and the plurality of pixels 110), therefore, even if the disconnection defect DF occurs between the fan-out area FA and the data driver placement area BA, the data signal DS can still sequentially pass through the first line segment 1141 , the first welding point 126 , the first repair line 120 , the second repair line 122 and the second line segment 1142 are transmitted to the corresponding pixels 110 in the display area AA.

Besides, the signal buffer 130 can also be optionally arranged to 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 repair line 120 and provide it to the second repair line 122 after being enhanced.

FIG. 3 is a schematic diagram of the display of FIG. 2 after the data driver is installed. The difference between the display 300 and the display 200 in FIG. 3 is that the display 300 arranges the data driver 310 in the data driver 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]. The data driver 310 is used to provide The pixel data signals DS. In addition, the data driver 310 is also electrically coupled to the first line segment 1141, and is also used to sequentially pass through the first line segment 1141, the first repair line 120, the signal buffer 130 (optionally), the second repair line 122 and The second line segment 1142 provides the data signal DS to the pixels electrically coupled to the second line segment. Besides, the placement (Bond) of the data driver 310 may be performed before patching or after patching. The data driver 310 straddles the first line segment 1141. Optionally, the data signal DS provided by the data driver 310 is directly provided to the first line segment 1141 after being output through the output pin of the data driver 310, and then provided through the first welding point 210. Give the first patch line 120. 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 welding point 210 and the plurality of pixels 110 are respectively located on opposite sides of the data driver 310, and the plurality of pixels 110 are located on the second repairing between the line 122 and the 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 is located between the second overlapping position and the data driver 310 .

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

Repair method S400 includes:

Step S410: Detect the display 100, 200, 300, and find out the specific data line 114 among the data lines 112[1], 112[2]-112[n-1], 112[n]. The specific data line 114 has The open circuit defect DF is the first line segment 1141 and the second line segment 1142 separated;

Step S420: Form the first repair line 120 and the first line segment 1141 at the first welding point 210 on the side of the data driver placement area BA opposite to the pixel 110 (in other words, the first welding point 210 and the pixel 110 are respectively located on the data driver on opposite sides of resettlement area BA); and

Step S430: Form the second repair line 122 and the second line segment 1142 on the side of the pixel 110 relative to the data driver placement area BA and the second welding point 124 (in other words, the second welding point 124 and the data driver placement area BA are respectively located in the pixel 110 opposite sides).

Specifically, step S410 is used to detect the display, find out the specific data line 114 having the open circuit defect DF among the data lines 112[1], 112[2]-112[n-1], 112[n], and then can according to As a result of the detection, it is known which data line 112[1], 112[2]～112[ n-1], 112[n].

Step S420 repairs the specific data line 114 according to the result detected in step S410. Since the first repair line 120 straddles the data lines 112[1], 112[2]～112[n-1], 112[n], it can According to the detection result of step S410, the data lines 112[1], 112[2]-112[n-1], 112[n] to be welded are selected. In step S420 , the first welding point 210 between the first repairing line 120 and the first line segment 1141 on the side of the data driver placement area BA opposite to the pixel 110 may be formed by eg laser welding.

Step S430 repairs the specific data line 114 according to the result detected in step S410. Since the second repair line 122 straddles the data lines 112[1], 112[2]～112[n-1], 112[n], it can According to the detection result of step S410, the data lines 112[1], 112[2]-112[n-1], 112[n] to be welded are selected. In step S430 , a second welding point 124 is formed between the second repairing line 122 and the second line segment 1142 on the side of the pixel 110 opposite to the data driver placement area BA. Furthermore, a transmission path capable of transmitting the data signal DS is formed.

FIG. 5 is a flowchart of a manufacturing method of 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: Detect the display 100, 200, 300, and find out the specific data line 114 among the data lines 112[1], 112[2]-112[n-1], 112[n]. The specific data line 114 has The open circuit defect DF is the first line segment 1141 and the second line segment 1142 separated;

Step S420: forming the first welding point 210 between the first repair line 120 and the first line segment 1141 on the side of the data driver placement area BA opposite to the pixel 110;

Step S430: forming the second welding point 124 between the second repair line 122 and the second line segment 1142 on the side of the pixel 110 opposite to the data driver placement area BA; and

Step S510: Place the data driver 310 in the data driver 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 step S400 are performed, and the data driver 310 is placed in the data driver placement area BA. There is no sequential requirement for performing the repairing method of step S400 and the installation of the data driver 310 .

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

In summary, the embodiment of the present invention transmits the data signal DS through the first repair line 120 disposed on the other side of the data driver placement area BA relative to the pixel 110. Compared with the third repair line 140, it can repair An open defect DF between the out area FA and the data driver placement area BA.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the present invention.

Claims (10)

1. A display, characterized in that it comprises: multiple pixels; a plurality of data lines electrically coupled to the pixels; a data driver electrically coupled to the data lines; A first repairing line electrically coupled to the data driver via a first welding point, the first repairing line and the pixels are respectively located on opposite sides of the data driver, and the first welding point and the pixels are respectively on opposite sides of the data drive; and A second repairing line is electrically coupled to a specific data line among the data lines and the first repairing line, and the pixels are located between the second repairing line and the data driver. 2. The display according to 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 . 3. The display according to claim 1 or 2, wherein the second repair line and the data lines have a plurality of second overlapping positions, and the pixels are located between the second overlapping positions and the data driver between; and the second repair line is used for selectively electrically coupling with the specific data line having an open defect among the data lines. 4. The display according to claim 1 or 2, wherein the first repair line is used for selectively electrically coupling with the specific data line having an open defect among the data lines. 5. The display according to claim 1 or 2, wherein the specific data line has a first line segment and a second line segment separated by an open defect; the first line segment is electrically coupled to the data driver , the first welding point is electrically coupled to the first repairing line and the first line segment; and the second repairing line and the second line segment have a second welding point, and the second welding point and the data driver are respectively on opposite sides of the pixels. 6. The display according to claim 1 or 2, wherein the display further comprises a signal buffer electrically coupled between the first repair line and the second repair line; and the data driver further comprises It is used for providing a data signal to the pixels electrically coupled to the specific data line through the first repair line, the signal buffer and the second repair line in sequence. 7. A method for repairing a display, characterized in that it is used to repair a display that has 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 to the pixels, the data driver placement area is used to set a data driver electrically coupled to the data lines, and the data driver placement area is located between the first repair line and the pixels , the pixels are located between the second repair line and the data driver placement area, the method includes: Detecting the display to find a specific data line among the data lines, the specific data line has a first line segment and a second line segment separated by an open circuit defect; forming a first welding point between the first repairing line and the first line segment, the first welding point and the pixels are respectively located on opposite sides of the data driver placement area; and A second welding point is formed between the second repairing line and the second line segment, and the second welding point and the data driver placement area are respectively located on opposite sides of the pixels. 8. The repair method according to claim 7, wherein the first repair line and the data lines have a plurality of first overlapping positions, and the data driver placement area is located between the first overlapping positions and the between pixels. 9. The repairing method according to claim 7 or 8, wherein the first repairing line is used for selectively electrically coupling with the specific data line having the disconnection defect among the data lines. 10. A method for manufacturing a display, comprising: performing the repairing method according to claim 7; and A data driver is placed in the data driver placement area, so that the data driver is electrically coupled to the data lines.

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