Array substrate and display panel

An array substrate having a substrate witha bonding region on one side, the bonding region having a plurality of bonding pads arranged in order, where at least one dummy pad is provided in a first position of the bonding pads. The at least one dummy pad is used for dividing the bonding region into a plurality of bonding sub-regions, where each bonding sub-region has a plurality of bonding pads. This disclosure further provides a display panel.

RELATED APPLICATION

The present application claims the benefit of Chinese Patent Application No. 201711131501.3, filed on Nov. 15, 2017, the entire disclosure of which is incorporated herein by reference.

TECHNICAL FIELD

This disclosure relates to the field of display technologies, and in particular to an array substrate and a display panel.

BACKGROUND ART

As the requirement for display effects of displays becomes higher and higher in recent years, the number of pixels comprised in a liquid crystal display per inch is increased continuously, which requires more pixels to be arranged per unit area on a display panel of the display and thus more wires.

In related technologies, an array substrate of the liquid crystal display has a bonding region on the periphery of a display region, the bonding region comprising a plurality of bonding pads arranged in order. Each bonding pad has data lines or signal lines for connecting to an integrated circuit module so as to control the display of the liquid crystal display.

SUMMARY

According to one exemplary embodiment of this disclosure, an array substrate is provided, comprising: a substrate, the substrate having a bonding region on one side, the bonding region comprising a plurality of bonding pads arranged in order, wherein at least one dummy pad is provided in a first position of the bonding pads, the at least one dummy pad dividing the bonding region into a plurality of bonding sub-regions, each bonding sub-region comprising a plurality of bonding pads.

In one embodiment, the number of bonding pads comprised in each bonding sub-region is the same.

In one embodiment, each dummy pad has a label.

In one embodiment, the label is used for indicating the number of bonding pads comprised in a bonding sub-region corresponding to the dummy pad.

In one embodiment, the label is used for indicating a serial number of a bonding sub-region corresponding to the dummy pad.

In one embodiment, the number of bonding pads comprised in each bonding sub-region is 40-50.

In one embodiment, a plurality of bonding pads are arranged sequentially in a plurality of horizontal rows parallel with each other, the dummy pad in each horizontal row and the corresponding dummy pads in other horizontal rows being located in a same vertical column.

According to another exemplary embodiment of this disclosure, a touch panel is further provided, comprising any array substrate mentioned above.

DETAILED DESCRIPTION OF EMBODIMENTS

Specific implementations, structures, features and other effects of the array substrate and the display panel will be explained in detail with reference to the drawings and the embodiments. In the following, “one embodiment” or “embodiments” mentioned in different places do not necessarily refer to the same embodiment(s). Besides, special features or structures in one or more embodiments can be combined in any suitable form.

As shown inFIG. 1, an array substrate is provided in an embodiment of this disclosure, comprising:

a substrate, the substrate having a bonding region1on one side, the bonding region1comprising a plurality of bonding pads2arranged in order, wherein at least one dummy pad3is provided in a first position of the bonding pads2, the at least one dummy pad3dividing the bonding region1into a plurality of bonding sub-regions4, each bonding sub-region4comprising a plurality of bonding pads2.

An array substrate generally comprises an array region and a bonding region1. The array region is an operation region of the array substrate, comprising signal lines such as gate lines, data lines and common electrode lines, and components such as pixel electrodes, common electrodes and thin film transistors (TFTs). The bonding region1is called a PAD region. The bonding region1is usually located on one side or two adjacent sides of four sides of the array substrate. The bonding region1is generally provided with only signal lines or data lines. The array substrate is interconnected with leads of an external drive circuit board via the signal lines or data lines provided in the bonding region1.

The bonding region1can comprise a plurality of bonding pads2, each bonding pad2being used for bonding a signal line. One end of each signal line is connected to an integrated circuit module on the array substrate corresponding to the pixels, and the other end is connected to the external drive circuit board. The plurality of bonding pads2within the bonding region1can be arranged in order, e.g., the plurality of bonding pads2can be arranged sequentially in a straight line; or the plurality of bonding pads2can be arranged sequentially in a plurality of straight lines parallel with each other. They can be specifically arranged in many different ways, which will not be limited herein. The bonding region1can comprise 300 to 400 bonding pads2. Since the plurality of bonding pads2are all arranged in order, when the staff search for a fault of the display panel, they can first search for a bonding pad2of the bonding region1having trouble, and then search for the integrated circuit module corresponding to the bonding pad. However, if the bonding pads2in the bonding region1do not have labels, it will be troublesome for the staff to search for the bonding pad2having trouble. For example, when the staff need to search for the bonding pad2whose serial number is 150, they have to count from the bonding pad2whose serial number is 1 to the bonding pad2whose serial number is 150. Besides, since the bonding pads2within the bonding region1have very tiny specifications, the staff often have to count with the help of a microscope, which will easily give rise to counting errors, thereby affecting the accuracy of troubleshooting and reducing the efficiency of troubleshooting.

At least one dummy pad3is provided in a first position of the bonding pads2. The number of the dummy pad3can be one or more, which will not be limited herein. The dummy pads3divide the bonding region1into a plurality of bonding sub-regions4, wherein each bonding sub-region4comprises a plurality of bonding pads2. For example, there are 320 bonding pads2in total, and a dummy pad3is provided every 40 bonding pads2. When the staff need to search for the 150th bonding pad2, they first determine that the bonding pad2to be searched for is within the fourth bonding sub-region4, wherein serial numbers of the bonding pads within the fourth bonding sub-region4are 121 to 160. Then, the staff rapidly find the fourth bonding sub-region4via labels of the dummy pads3, and count in the fourth bonding sub-region4. By doing this, they can not only improve the speed of finding the bonding pad2to be searched for, but also ensure the accuracy of troubleshooting. The dummy pads3can be realized in many forms, e.g., they can be reserved interval space, or bonding pads with no signal lines being bound, or special identifiers, which will not be limited herein.

In related technologies, in case of display defects such as dark lines in a liquid crystal display, after the staff have confirmed the serial number of the bonding pads in the bonding region having trouble, they have to count a plurality of bonding pads arranged in order in the bonding region until they find the bonding pad with the corresponding serial number. This search manner has a low efficiency and requires a heavy workload of the staff. This disclosure provides an array substrate and a display panel for enabling the staff to rapidly find a bonding pad with a specific serial number within a bonding region of the array substrate.

This disclosure provides an array substrate for enabling the staff to rapidly find a bonding pad with a specific serial number within a bonding region of the array substrate. In related technologies, when the staff need to search for a bonding pad with a specific serial number within a bonding region of the array substrate, they usually have to count from the first bonding pad. This not only makes the troubleshooting procedure laborious and time-consuming, but also easily gives rise to counting errors, thereby resulting in a low efficiency of troubleshooting. The array substrate provided in this disclosure comprises: a substrate, the substrate having a bonding region on one side, the bonding region comprising a plurality of bonding pads arranged in order, wherein at least one dummy pad is provided in a first position of the bonding pads, the at least one dummy pad dividing the bonding region into a plurality of bonding sub-regions, each bonding sub-region comprising a plurality of bonding pads. When the staff need to search for a bonding pad with a specific serial number, they can first determine a bonding sub-region in which the bonding pad with the specific serial number is located, and then count within the bonding sub-region. This decreases the workload for counting, and thus reduces the time the staff spend searching for the bonding pad with the specific serial number within the bonding region of the array substrate and improves the efficiency of troubleshooting.

In addition, an IC bump and a cummy bump on the array substrate are usually connected via an anisotropic conductive film (ACF), and to determine whether the connection between the IC bump and the cummy bump is well conductive, one needs to observe a pressed state of conductive particles in the anisotropic conductive adhesive. In an embodiment provided in this disclosure, one can directly observe, via at least one dummy pad in a first position of the bonding pads, the pressed state of the conductive particles and whether the impression is stable, which can accelerate the working efficiency of the staff.

There can be a plurality of dummy pads3, and the plurality of dummy pads3are arranged in a plurality of first positions of the bonding pads2respectively. There can be many bonding pads2in the bonding region1of the array substrate, generally 300-400. In order to improve the efficiency of searching for the bonding pad2with a specific serial number, a plurality of dummy pads3can be arranged. As a result, the number of bonding pads2comprised in each of the bonding sub-regions separated by the dummy pads3is small, which can improve the efficiency of searching for the bonding pad with the specific serial number.

The number of bonding pads comprised in each bonding sub-region4can be the same. When the staff search for the bonding pad2with the specific serial number, since the number of bonding pads2comprised in each bonding sub-region4is the same, the staff can more rapidly determine the bonding sub-region4in which the bonding pad2with the specific serial number is located, thereby improving the troubleshooting speed and saving the troubleshooting time.

Each dummy pad3has a label5. The label5can indicate a variety of contents. The label5can be used for indicating the number of bonding pads2comprised in the bonding sub-region4corresponding to the dummy pad3. The staff can rapidly know via the label5the number of bonding pads2comprised in the bonding sub-region4corresponding thereto. For example, a dummy pad3is provided every 40 bonding pads2, so the label5of each dummy pad3can be 40. In this way, the staff can rapidly know via the label of the dummy pad3the number of bonding pads2comprised in each bonding sub-region4, thereby improving the efficiency of troubleshooting.

The label5can also be used for indicating other contents. The label5can be used for indicating a serial number of a bonding sub-region4corresponding to the dummy pad3. For example, a dummy pad3is provided every 40 bonding pads2, so the label5of the first dummy pad can be 40, the label5of the second dummy pad can be 80, the label5of the third dummy pad can be 120, and so on. With the label5of the dummy pad3, a serial number of a bonding sub-region4corresponding to the dummy pad3can be rapidly determined, and thus the efficiency of troubleshooting can be improved.

The number of bonding pads2comprised in each bonding sub-region4can be 40-50. The bonding pads2comprised in the bonding region1of the array substrate generally can be 300-400, so when every 40-50 bonding pads2are separated into one bonding sub-region4, not only can the troubleshooting time be reduced, but also the influence of the dummy pads3on the display effect can be decreased, which improves the practicality of the array substrate.

The plurality of bonding pads2can be arranged sequentially in a plurality of horizontal rows parallel with each other, the dummy pad in each horizontal row and the corresponding dummy pads in other horizontal rows being located in a same vertical column. Since the dummy pad in each horizontal row and the corresponding dummy pads in other horizontal rows are located in the same vertical column, the influence of the dummy pads on the display effect can be decreased.

In another exemplary embodiment, this disclosure further provides a display panel, comprising any array substrate mentioned above.

This disclosure provides a display panel for enabling the staff to rapidly find a bonding pad with a specific serial number within a bonding region of the array substrate. In related technologies, when the staff need to search for a bonding pad with a specific serial number within a bonding region of the array substrate, they usually have to count from the first bonding pad. This not only makes the troubleshooting procedure laborious and time-consuming, but also easily gives rise to counting errors, thereby resulting in a low efficiency of troubleshooting. The display panel provided in this disclosure comprises an array substrate, the array substrate comprising: a substrate, the substrate having a bonding region on one side, the bonding region comprising a plurality of bonding pads arranged in order, wherein at least one dummy pad is provided in a first position of the bonding pads, the at least one dummy pad dividing the bonding region into a plurality of bonding sub-regions, each bonding sub-region comprising a plurality of bonding pads. When the staff need to search for a bonding pad with a specific serial number, they can first determine the bonding sub-region in which the bonding pad with the specific serial number is located, and then count within the bonding sub-region. This decreases the workload for counting, and thus reduces the time the staff spend searching for the bonding pad with the specific serial number within the bonding region of the array substrate and improves the efficiency of troubleshooting.

What is described above is only specific embodiments of this disclosure, but the protection scope of this disclosure is not limited thereto. Any variation or substitution easily conceivable within the technical scope disclosed in this disclosure for a skilled person who is familiar with this technical field shall fall within the protection scope of this disclosure. Therefore, the protection scope of this disclosure shall be subject to the protection scope of the appended claims.