CN112700724A - Display panel - Google Patents
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- CN112700724A CN112700724A CN202011643204.9A CN202011643204A CN112700724A CN 112700724 A CN112700724 A CN 112700724A CN 202011643204 A CN202011643204 A CN 202011643204A CN 112700724 A CN112700724 A CN 112700724A
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- metal layer
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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Abstract
The invention provides a display panel, which comprises a first substrate, a second substrate and a third substrate, wherein the first substrate is provided with a peripheral area and a display area which are arranged adjacently; the patterned metal layer is arranged on the first substrate and further comprises a first section and a second section; a gap disposed between the first section and the second section of the patterned metal layer; the flat layer is arranged on the first substrate and covers the patterned metal layer; the U-shaped groove is arranged on the flat layer, penetrates through the flat layer and extends to the patterned metal layer so as to expose part of the patterned metal layer; the connecting structure is arranged in the U-shaped groove; wherein the connection structure couples the first segment and the second segment of the patterned metal layer.
Description
Technical Field
The present invention relates to a display panel, and more particularly, to a display panel capable of repairing a data line.
Background
With the development of science and technology, display panels are widely used in many electronic products, such as mobile phones, tablet computers, watches, and the like.
In the production process of the display panel, the connection line of the lower layer is inevitably open, i.e. the connection line is disconnected, and if the disconnection is not found in time, other layers (e.g. the flat layer and the transparent conductive layer) will cover the connection line of the lower layer and the opening therein in the subsequent process engineering. At this time, the connecting wire needs to be repaired.
A common repair method is to form through holes extending to the surface of the connection line on both sides of the opening, respectively, deposit a conductive material in the through holes and on the upper transparent conductive layer, and electrically connect the conductive material to the disconnected connection line to achieve repair.
The existing repair method has the following problems: 1. a semitransparent conducting layer and a flat layer are usually arranged above the connecting lines, and in the process of forming through holes by using laser, the semitransparent conducting layer and the connecting lines are short-circuited to cause abnormal dark lines of the display panel; 2. the flat layer is relatively thick, conductive materials are relatively difficult to deposit in the through holes and on the upper transparent conductive layer, disconnection is easy to generate, and the repair success rate is low.
Therefore, how to provide a display panel which is convenient to repair, has high repair success rate and can avoid the generation of dark lines is one of the problems to be solved.
Disclosure of Invention
The embodiment of the invention provides a display panel, which can be repaired more easily, has high repair success rate, can well avoid the problem of abnormal dark lines caused by short circuit between a transparent conductive layer and a connecting line, and improves the display quality and the qualification rate of products.
The display panel of one embodiment of the invention comprises a first substrate, a second substrate and a third substrate, wherein the first substrate is provided with a peripheral area and a display area which are arranged adjacently, and the display area is provided with a plurality of pixel units; the patterned metal layer is arranged on the first substrate and further comprises a first section and a second section; a gap disposed between the first section and the second section of the patterned metal layer; the flat layer is arranged on the first substrate and covers the patterned metal layer; the U-shaped groove is arranged on the flat layer, penetrates through the flat layer and extends to the patterned metal layer so as to expose part of the patterned metal layer; the connecting structure is arranged in the U-shaped groove; wherein the connection structure couples the first segment and the second segment of the patterned metal layer.
The display panel described above, wherein the display panel further comprises: the first metal layer is arranged on the flat layer; a first insulating layer disposed on the first metal layer; the U-shaped trench further penetrates the first metal layer and the first insulating layer.
The display panel described above, wherein the display panel further comprises: and the second metal layer is arranged on the first insulating layer, and the U-shaped groove further penetrates through the second metal layer.
The display panel described above, wherein the display panel further comprises: a first opening disposed on the first metal layer and the first insulating layer to expose a portion of the planarization layer, wherein a projection of the first opening on the first substrate surrounds an outer side of a projection of the U-shaped trench on the first substrate; and the second opening is arranged on the second metal layer to expose part of the flat layer, the second opening is arranged on the outer side of the U-shaped groove, and the second opening corresponds to part of the first opening and is communicated with the first opening.
In the display panel, the second opening further exposes a portion of the first insulating layer.
The display panel described above, wherein the display panel further comprises: a first opening disposed on the first metal layer and the first insulating layer to expose a portion of the planarization layer, wherein a projection of the first opening on the first substrate covers a projection of the U-shaped trench on the first substrate; and the second opening is arranged on the second metal layer so as to expose part of the flat layer and part of the first insulating layer, the second opening is arranged on the outer side of the U-shaped groove, and the second opening corresponds to part of the first opening and is communicated with the first opening.
In the display panel, the first segment and the second segment extend along a first direction.
In the display panel, the second metal layer extends along the first direction.
In the display panel, the connection structure and the patterned metal layer are disposed on the same layer.
In the display panel, the first metal layer and the second metal layer are transparent conductive layers.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
Fig. 1A is a schematic perspective view of a display panel according to an embodiment of the invention.
Fig. 1B is a schematic top view of a display panel according to an embodiment of the invention.
Fig. 2A is a schematic perspective view of a display panel according to another embodiment of the invention.
Fig. 2B is a schematic top view of a display panel according to another embodiment of the invention.
Fig. 3A is a schematic top view of a display panel according to another embodiment of the invention.
Fig. 3B is a schematic perspective view along the line AA' in fig. 3A.
FIG. 3C is a schematic perspective view along section line BB' of FIG. 3A
Fig. 4A is a schematic top view of a display panel according to still another embodiment of the invention.
Fig. 4B is a schematic perspective view along the line AA' in fig. 4A.
Fig. 5A is a schematic top view of a display panel according to a further embodiment of the invention.
Fig. 5B is a schematic perspective view along the line AA' in fig. 5A.
Wherein, the reference numbers:
100: display panel
101: first substrate
102: patterned metal layer
1021: first stage
1022: second section
103: gap
104: planarization layer
105: u-shaped groove
106: connection structure
107: a first metal layer
108: a first insulating layer
109: second metal layer
110: first opening
111: second opening
Detailed Description
The invention will be described in detail with reference to the following drawings, which are provided for illustration purposes and the like:
fig. 1A is a schematic perspective view of a display panel according to an embodiment of the invention. Fig. 1B is a schematic top view of a display panel according to an embodiment of the invention. As shown in fig. 1A and fig. 1B, the display panel 100 of the present embodiment includes a first substrate 101, the first substrate 101 has a display area AA and a peripheral area BA (not shown) disposed adjacently, and a plurality of pixel units (not shown) arranged in an array are formed in the display area AA. The patterned metal layer 102 is disposed on the first substrate 101, and a gap 103 is formed in the patterned metal layer 102, so that the patterned metal layer 102 is divided into a first section 1021 and a second section 1022 by the gap 103, the gap 103 is formed between the first section 1021 and the second section 1022, and the first section 1021 and the second section 1022 extend along a first direction. In this embodiment, the patterned metal layer 102 is, for example, a data line or a gate line, the gap 103 is a defect that interrupts the data line or the gate line, and the patterned metal layer 102 is, for example, disposed in the display area AA, but not limited thereto, the patterned metal layer 102 may also be other signal transmission lines, and in addition, the patterned metal layer 102 may also be disposed in the peripheral area BA. The planarization layer 104 is disposed on the first substrate 101 and covers the patterned metal layer 102 and the gap 103. In order to repair the patterned metal layer 102, i.e. to electrically connect the first segment 1021 and the second segment 1022, a U-shaped trench 105 is formed in the planar layer 104, and the U-shaped trench 105 penetrates through the planar layer 104 and exposes the patterned metal layer 102, i.e. the U-shaped trench 105 extends from the planar layer 104 to the patterned metal layer 102. A conductive material is deposited (e.g., LCVD) in the U-shaped trench 105, and the conductive material may completely fill the U-shaped trench 105 or may only partially fill the U-shaped trench 105, which is not limited in the present invention. The filled conductive material forms the connection structure 106, so that the connection structure 106 can realize the electrical connection between the first segment 1021 and the second segment 1022. Repair of the patterned metal layer 102 may thereby be achieved. Alternatively, the connection structure 106 may be made of the same film layer as the patterned metal layer 102, but is not limited thereto, and the connection structure 106 may be made of any conductive material.
Fig. 2A is a schematic perspective view of a display panel according to another embodiment of the invention. Fig. 2B is a schematic top view of a display panel according to another embodiment of the invention. With reference to fig. 1A and 1B and fig. 2A and 2B, in the display panel 100 of the present embodiment, a first metal layer 107 (e.g., ITO1), a first insulating layer 108, and a second metal layer 109 (e.g., ITO2) are further formed on the planarization layer 104, the first insulating layer 108 is disposed on the first metal layer 107, and the second metal layer 109 is disposed on the first insulating layer 108, wherein the planarization layer 104, the first metal layer 107 (e.g., ITO1), and the first insulating layer 108 are sequentially formed on the patterned metal layer 102, for example, globally, the second metal layer 109 is a patterned metal layer, and the second metal layer 109, for example, has the same extending direction as the first segment 1021 and the second segment 1022 in the patterned metal layer 102. Similarly, in order to repair patterned metal layer 102, U-shaped trench 105 needs to penetrate through first metal layer 107, first insulating layer 108, and second metal layer 109 in addition to penetrating through planarization layer 104. The connection structure 106 is preferably not higher than the planarization layer 104, so as to avoid the occurrence of a dark line problem caused by a short circuit between the connection structure 106 and the first metal layer 107.
Fig. 3A is a schematic top view of a display panel according to another embodiment of the invention. Fig. 3B is a schematic perspective view along a section line AA 'of fig. 3A, and fig. 3C is a schematic perspective view along a section line BB' of fig. 3A. The connection structure 106 is omitted in fig. 3B, 3C for ease of understanding. With reference to fig. 2A and 2B, and fig. 3A, 3B, and 3C, in order to better avoid a short circuit between the connection structure 106 and the first metal layer 107, the display panel 100 in this embodiment further forms a first opening 110 outside the U-shaped trench 105, the first opening 110 is disposed around the U-shaped trench 105, and a projection of the first opening 110 on the first substrate 101 surrounds an outer side of a projection of the U-shaped trench 105 on the first substrate 101. The first opening 110 is disposed on the first metal layer 107 and the first insulating layer 108 and exposes a portion of the planarization layer 104. In addition, a second opening 111 is disposed in the second metal layer 109 to expose a portion of the planarization layer 104, the second opening 111 is disposed outside the U-shaped trench, and the second opening 111 corresponds to a portion of the first opening 110 and is connected to each other. In other words, the projection of the second opening 111 on the first substrate 101 overlaps with the projection of a portion of the first opening 110 on the first substrate 101. In addition, as shown in fig. 3A, 3B and 3C, at a position along AA' in fig. 3A, i.e., at a position of the first segment 1021 and the second segment 1022 in the patterned metal layer 102, the U-shaped trench 105 extends through the planarization layer 104, the first metal layer 107, the first insulating layer 108 and the second metal layer 109 to the upper side of the first segment 1021 and the second segment 1022 in the patterned metal layer 102 to expose the first segment 1021 and the second segment 1022 in the patterned metal layer 102; at the position along BB' in fig. 3A, i.e. at the position without the patterned metal layer 102, the U-shaped trench 105 also extends through the planarization layer 104, the first metal layer 107, the first insulating layer 108 and the second metal layer 109 to the top of the first substrate 101 to expose the first substrate 101. As can be seen from fig. 2A and 2B and fig. 3A, 3B and 3C, the U-shaped connection structure 106 of the present application is disposed in the U-shaped groove 105, that is, the U-shaped connection structure 106 of the present application is directly disposed on the first section 1021 and the second section 1022 in the patterned metal layer 102 and the first substrate 101, since the U-shaped connection structure 106 does not need to span a flat layer and an upper metal layer with a large thickness, the display panel can be repaired more easily, and the repair success rate is high.
Fig. 4A is a schematic top view of a display panel according to still another embodiment of the invention. Fig. 4B is a schematic perspective view along the line AA' in fig. 4A. Referring to fig. 3A, 3B, 4A, and 4B, in order to better avoid short circuits between the connection structure 106 and the first metal layer 107 and between the first metal layer 107 and the second metal layer 109, the size of the second opening 111 disposed in the second metal layer 109 is further larger than that of the embodiment shown in fig. 3A and 3B in the display panel 100 of the present embodiment. In other words, the projection of a portion of the second opening 111 on the first substrate 101 corresponds to the projection of a portion of the first opening 110 on the first substrate 101, and the projection of a portion of the second opening 111 on the first substrate 101 is located outside the projection of the first opening 110 on the first substrate 101. In other words, compared with the embodiment shown in fig. 3A and 3B, the second opening 111 of the present embodiment exposes a portion of the first insulating layer 108 in addition to exposing a portion of the planarization layer 104.
Like the embodiment shown in fig. 3A and 3B, the projection of the second opening 111 on the first substrate 101 is disposed outside the projection of the U-shaped trench 105 on the first substrate 101, and the first opening 110 corresponds to and is communicated with the second opening 111, so that a step-like structure is formed among the second metal layer 109, the first insulating layer 108, the first metal layer 107 and the planarization layer 104, thereby better avoiding the occurrence of the dark line problem.
Fig. 5A is a schematic top view of a display panel according to a further embodiment of the invention, and fig. 5B is a schematic perspective view along a section line AA' of fig. 5A. With reference to fig. 4A, 4B, 5A, and 5B, in the display panel 100 of the embodiment, the first opening 110 covers a projection of the U-shaped groove 105 on the first substrate, a projection of a portion of the second opening 111 on the first substrate corresponds to a projection of a portion of the first opening 110 on the first substrate 101, and a projection of a portion of the second opening 111 on the first substrate 101 is located outside a projection of the first opening 110 on the first substrate 101. The second opening 111 exposes a portion of the first insulating layer 108 in addition to a portion of the planarization layer 104. The first opening 110 and the second opening 111 communicate with each other. This can further avoid the occurrence of the dark line problem.
In summary, according to the embodiments of the present invention, since the display panel employs the U-shaped connection structure, the connection structure does not need to span the flat layer and the upper metal layer with a large thickness, the display panel can be repaired more easily, the repair success rate is high, the problem of abnormal dark lines caused by short circuit between the transparent conductive layer and the connection lines can be avoided, and the display quality and the yield of the product are improved.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A display panel, comprising:
the display device comprises a first substrate, a second substrate and a display unit, wherein the first substrate is provided with a peripheral area and a display area which are arranged adjacently, and the display area is provided with a plurality of pixel units;
the patterned metal layer is arranged on the first substrate and further comprises a first section and a second section;
a gap disposed between the first section and the second section of the patterned metal layer;
the flat layer is arranged on the first substrate and covers the patterned metal layer;
the U-shaped groove is arranged on the flat layer, penetrates through the flat layer and extends to the patterned metal layer so as to expose part of the patterned metal layer;
the connecting structure is arranged in the U-shaped groove;
wherein the connection structure couples the first segment and the second segment of the patterned metal layer.
2. The display panel of claim 1, wherein the display panel further comprises:
the first metal layer is arranged on the flat layer;
a first insulating layer disposed on the first metal layer;
the U-shaped trench further penetrates the first metal layer and the first insulating layer.
3. The display panel of claim 2, wherein the display panel further comprises:
and the second metal layer is arranged on the first insulating layer, and the U-shaped groove further penetrates through the second metal layer.
4. The display panel of claim 3, wherein the display panel further comprises:
a first opening disposed on the first metal layer and the first insulating layer to expose a portion of the planarization layer, wherein a projection of the first opening on the first substrate surrounds an outer side of a projection of the U-shaped trench on the first substrate; and
and the second opening is arranged on the second metal layer to expose part of the flat layer, the second opening is arranged on the outer side of the U-shaped groove, and the second opening corresponds to part of the first opening and is communicated with the first opening.
5. The display panel according to claim 4, wherein the second opening further exposes a portion of the first insulating layer.
6. The display panel of claim 3, wherein the display panel further comprises:
a first opening disposed on the first metal layer and the first insulating layer to expose a portion of the planarization layer, wherein a projection of the first opening on the first substrate covers a projection of the U-shaped trench on the first substrate;
and the second opening is arranged on the second metal layer so as to expose part of the flat layer and part of the first insulating layer, the second opening is arranged on the outer side of the U-shaped groove, and the second opening corresponds to part of the first opening and is communicated with the first opening.
7. The display panel of claim 1, wherein the first segment and the second segment extend in a first direction.
8. The display panel according to claim 7, wherein the second metal layer extends in the first direction.
9. The display panel of claim 1, wherein the connection structure is disposed in a same layer as the patterned metal layer.
10. The display panel according to claim 3, wherein the first metal layer and the second metal layer are transparent conductive layers.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011643204.9A CN112700724B (en) | 2020-12-30 | 2020-12-30 | Display panel |
| TW110107790A TWI773167B (en) | 2020-12-30 | 2021-03-04 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011643204.9A CN112700724B (en) | 2020-12-30 | 2020-12-30 | Display panel |
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| Publication Number | Publication Date |
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| CN112700724A true CN112700724A (en) | 2021-04-23 |
| CN112700724B CN112700724B (en) | 2022-09-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011643204.9A Active CN112700724B (en) | 2020-12-30 | 2020-12-30 | Display panel |
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| Country | Link |
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| CN (1) | CN112700724B (en) |
| TW (1) | TWI773167B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113655647A (en) * | 2021-08-20 | 2021-11-16 | 深圳市华星光电半导体显示技术有限公司 | Method and device for repairing broken line of array substrate |
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| CN108899342B (en) * | 2018-06-29 | 2021-07-06 | 武汉华星光电半导体显示技术有限公司 | Array substrate, display panel and manufacturing method thereof, display and electronic device |
| CN110224006B (en) * | 2019-05-13 | 2021-06-01 | 武汉华星光电半导体显示技术有限公司 | OLED display panel and preparation method thereof |
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2020
- 2020-12-30 CN CN202011643204.9A patent/CN112700724B/en active Active
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2021
- 2021-03-04 TW TW110107790A patent/TWI773167B/en active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20120287366A1 (en) * | 2010-01-28 | 2012-11-15 | Sharp Kabushiki Kaisha | Method for correcting defect in display device, display device and method for manufacturing display device |
| CN101776808A (en) * | 2010-02-10 | 2010-07-14 | 深超光电（深圳）有限公司 | Liquid crystal display array base plate and patching method thereof |
| CN104597679A (en) * | 2015-02-12 | 2015-05-06 | 深圳市华星光电技术有限公司 | Array substrate and broken line repairing method thereof |
| CN104765170A (en) * | 2015-04-17 | 2015-07-08 | 深圳市华星光电技术有限公司 | Long-line repair method of COA array substrate |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113655647A (en) * | 2021-08-20 | 2021-11-16 | 深圳市华星光电半导体显示技术有限公司 | Method and device for repairing broken line of array substrate |
| CN113655647B (en) * | 2021-08-20 | 2022-12-06 | 深圳市华星光电半导体显示技术有限公司 | Method and device for repairing broken line of array substrate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112700724B (en) | 2022-09-06 |
| TW202225796A (en) | 2022-07-01 |
| TWI773167B (en) | 2022-08-01 |
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