CN101847628A - display device - Google Patents

Abstract

The present invention provides a display device, comprising: an effective display part composed of display pixels, a signal line electrically connected to the effective display part, and an inspection device, the inspection device includes short-circuit bars arranged at intervals, and each short-circuit bar is respectively It is electrically connected with different signal lines, and one end of the shorting bar has a test pad, and the inspection device also includes spike protrusions that are electrically connected with the shorting bar respectively, thereby solving the problem of the shorting bar and the signal line caused by static electricity. The problem that the via area at the connection position is easily burned.

Description

display device

technical field

The invention relates to the field of display devices, in particular to a display device with an inspection device.

Background technique

The display device has many advantages such as light and thin, energy saving, and no radiation, so it has gradually replaced the traditional cathode ray tube (CRT) display. Currently, display devices are widely used in electronic equipment such as high-definition digital televisions, desktop computers, personal digital assistants (PDAs), notebook computers, mobile phones, and digital cameras.

The display device has an effective display portion composed of display pixels in a matrix. The effective display portion has a plurality of scan lines extending in a row direction of display pixels and a plurality of data lines extending in a column direction of display pixels. A switch element, such as a thin film transistor (TFT), and a pixel electrode connected to the switch element are arranged at the intersection of the scan line and the data line. Each scanning line and data line is led out to the peripheral part of the effective display part, for example, the drawn-out scanning line and data line are electrically connected to the driving circuit. These scan lines, data lines and other circuit connection lines are collectively referred to as signal lines.

As the number of display pixels increases, the line widths of various signal lines such as scanning lines and data lines in the effective display part and its peripheral parts become thinner and the intervals become smaller and smaller, so various disconnections, short circuits, etc. There are more and more cases of poor wiring. Therefore, in order to detect poor wiring in time, prevent large-scale defects from occurring and waste of defective products flowing into the next process, scanning lines, data lines and other signal lines need to be checked after wiring. Check to determine whether there is a bad wiring.

As shown in FIG. 1 , a schematic structural diagram of a display device provided with an inspection device, the effective display part 11 is connected to a peripheral driving circuit (not shown) through a signal line 1005 , and the signal line 1005 is connected to the inspection device 20 . The inspection device 20 is composed of four shorting bars (shorting bars) 1001, 1002, 1003, 1004, and each shorting bar 1001, 1002, 1003, 1004 is connected to the signal line 1005-1, 1005-2, 1005-3 respectively, The signal lines may be scan lines, data lines or other signal lines. The connecting positions of the shorting bars 1001, 1002, 1003, 1004 and the signal lines 1005-1, 1005-2, 1005-3 are via hole areas. The via area has a contact hole 1000 and a connecting conductive layer 1006. Part of the connecting conductive layer 1006 is filled in the contact hole 1000 for electrically connecting the shorting bar and the signal line. The connecting conductive layer 1006 is generally indium tin oxide (ITO) Or an indium zinc oxide (IZO) layer. A test pad (visual test pad) 1007 is connected to one end of the shorting bar, and an electrical test can be performed by applying a voltage signal to the test pad 1007. FIG. 2 is an enlarged view of the effective display portion of the display device shown in FIG. 1 and the connection position of the inspection device, in which the dotted box 10a shows the via area at the connection position of the shorting bar and the signal line.

Since static electricity is easily generated during the manufacturing process, it is easy to burn the via area due to static electricity. FIG. 3 is an enlarged view of the burnt part of the via hole area in the display device shown in FIG. 2 , where the dotted line box 10b shows the burned part. Especially because electrostatic charge is easy to accumulate in the via hole area, so it is easy to generate relatively large static electricity in the via hole area so that the contact hole is burned. Usually, since the entire surface of the structure in FIG. 1 is covered by one or two transparent insulating layers (not shown in the figure), generally silicon nitride or silicon oxide. If during the manufacturing process, such as the alignment film coating and alignment film rubbing process of the box-making process, due to excessive static electricity, the connecting conductive layer 1006 in the via hole area will be burned, resulting in the contact hole being burned, so that the electrical test cannot be performed. If it is carried out, adverse phenomena will occur.

Contents of the invention

The purpose of the present invention is to provide a display device so as to solve the problem that the via area is easily burned due to static electricity.

A display device provided by the present invention includes: an effective display part composed of display pixels, a signal line electrically connected to the effective display part, and an inspection device, wherein the inspection device includes short-circuit bars arranged at intervals; the short-circuit bars are respectively The via area is electrically connected to different signal lines, and one end of the shorting bar has a test pad, and the inspection device also includes a spike protrusion electrically connected to the shorting bar.

Preferably, the peak protrusion is located at one end of the shorting bar without a test pad.

Preferably, one end of the same short-circuit bar without the test liner has one sharp protrusion.

Preferably, the tips of the spikes at the end without the test pad of the short-circuit bar connected to different signal lines are opposite to each other.

Preferably, the spiked protrusion is located on the test pad of the shorting bar.

Preferably, the tips of the spikes on the test pads of the shorting bars connected to different signal lines are opposite to each other.

Preferably, the test pads of the shorting bars have the spiked protrusions.

Preferably, the tips of the spikes at the end without the test pad of the short-circuit bar connected to different signal lines are opposite to each other.

Preferably, the tips of the spikes on the test pads of the shorting bars connected to different signal lines are opposite to each other.

Preferably, the tips of the spikes on the test pads of the shorting bars connected to different signal lines are opposite to each other.

Preferably, the peak protrusion is located next to the via area.

Preferably, the side surfaces of the shorting bars close to the adjacent shorting bars on both sides have the peak protrusions respectively, and the tips of the peak protrusions on the adjacent shorting bars are opposite to each other.

Preferably, the tip of the peak protrusion is horn-shaped or cone-shaped.

Preferably, the shorting bar and the peak protrusion are located on the same layer.

Preferably, the materials of the peak protrusions are one or more of aluminum, aluminum neodymium alloy, molybdenum, and molybdenum neodymium alloy.

Preferably, the material of the peak protrusions is indium tin oxide.

Preferably, the side surfaces of the signal lines close to the adjacent signal lines on both sides are provided with the peak protrusions, and the peak protrusions on the adjacent signal lines are oppositely arranged.

Preferably, an auxiliary pointed area is additionally provided on the opposite side of the peaked protrusion, the auxiliary pointed area is located outside the effective display part, and has one or more pointed points corresponding to the pointed protrusion.

Preferably, the auxiliary tip region is arranged on the common electrode.

Preferably, the signal lines and the spikes are located on the same layer.

Preferably, the peak protrusion next to the via hole area is an extension of the signal line connected to the shorting bar to the outside of the shorting bar.

Preferably, beside the via hole area, there are also sharp protrusions on the same layer as the shorting bar, opposite to the sharp peaks on the same layer as the signal line and the sharp peaks on the same layer as the shorting bar.

Preferably, the tip of the peak protrusion is horn-shaped or cone-shaped.

The display device of the present invention has an inspection device, the inspection device includes short-circuit bars arranged at intervals; each of the short-circuit bars is electrically connected to different signal lines through the via hole area, and one end of the short-circuit bars has a test pad, The inspection device also includes: a spike protrusion electrically connected with the shorting bar. . During the manufacturing process, once the static electricity is too large, the accumulated charges in the via area will immediately move to the peaks, forming a sharp discharge at the tip of the peaks, which greatly reduces the damage to the vias caused by static electricity, so that the electrical test can be carried out normally. Therefore, compared with the prior art, the present invention reduces the possibility that the via area is easily burned due to static electricity.

Description of drawings

The above and other objects, features and advantages of the present invention will be more apparent by a more specific description of preferred embodiments of the present invention shown in the accompanying drawings. Like reference numerals designate like parts throughout the drawings. The drawings are not intentionally scaled according to the actual size, and the emphasis is on illustrating the gist of the present invention.

Fig. 1 is a structural schematic diagram of an existing display device provided with an inspection device;

Fig. 2 is an enlarged view of the effective display part of the display device shown in Fig. 1 and the connection position of the inspection device;

FIG. 3 is an enlarged view of the burnt part of the via area in the display device shown in FIG. 2;

FIG. 4 is a schematic structural diagram of Embodiment 1 of a display device of the present invention;

5 is a schematic structural diagram of a detection device and a signal line in Embodiment 2 of a display device of the present invention;

6 is a schematic structural diagram of a detection device and a signal line in Embodiment 3 of a display device of the present invention;

7 is a schematic structural diagram of a detection device and a signal line in Embodiment 4 of a display device of the present invention;

8 is a schematic structural diagram of a detection device and a signal line in Embodiment 5 of a display device of the present invention;

9 is a schematic structural diagram of a detection device and a signal line in Embodiment 6 of a display device of the present invention;

10 is a schematic structural diagram of a detection device and a signal line in Embodiment 7 of a display device of the present invention;

11 is a schematic structural diagram of a detection device and a signal line in Embodiment 8 of a display device of the present invention;

12 is a schematic structural diagram of a detection device and a signal line in Embodiment 9 of a display device of the present invention;

13 is a schematic structural diagram of a detection device and a signal line in Embodiment 10 of the display device of the present invention;

FIG. 14 is a schematic structural diagram of a detection device and a signal line in Embodiment 11 of a display device of the present invention.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar extensions without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

Secondly, the present invention is described in detail using schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional view showing the device structure will not be partially enlarged according to the general scale, and the schematic diagram is only an example, and it should not be limited here. The protection scope of the present invention. In addition, the three-dimensional space dimensions of length, width and depth should be included in actual production.

A display device provided by the present invention includes: an effective display part composed of display pixels, a signal line electrically connected to the effective display part, and an inspection device, wherein the inspection device includes short-circuit bars arranged at intervals; the short-circuit bars are respectively The via area is electrically connected to different signal lines, and one end of the shorting bar has a test pad, and the inspection device also includes a spike protrusion electrically connected to the shorting bar.

Preferably, the peak protrusion is located at one end of the shorting bar without a test pad.

Preferably, one end of the same shorting bar without the test liner has one sharp protrusion.

Preferably, the tips of the spikes at the end without the test pad of the short-circuit bar connected to different signal lines are opposite to each other.

Preferably, the spiked protrusion is located on the test pad of the shorting bar.

Preferably, the tips of the spikes on the test pads of the shorting bars connected to different signal lines are opposite to each other.

Preferably, the test pads of the shorting bars have the spiked protrusions.

Preferably, the tips of the spikes at the end without the test pad of the short-circuit bar connected to different signal lines are opposite to each other.

Preferably, the tips of the spikes on the test pads of the shorting bars connected to different signal lines are opposite to each other.

Preferably, the tips of the spikes on the test pads of the shorting bars connected to different signal lines are opposite to each other.

Preferably, the peak protrusion is located next to the via area.

Preferably, the side surfaces of the shorting bars close to the adjacent shorting bars on both sides have the peak protrusions respectively, and the tips of the peak protrusions on the adjacent shorting bars are opposite to each other.

Preferably, the tip of the peak protrusion is horn-shaped or cone-shaped.

Preferably, the shorting bar and the peak protrusion are located on the same layer.

Preferably, the material of the peak protrusions is one or more of aluminum, aluminum neodymium alloy, indium tin oxide, molybdenum, and molybdenum neodymium alloy.

Preferably, the material of the peak protrusions is indium tin oxide.

Preferably, the side surfaces of the signal lines close to the adjacent signal lines on both sides are provided with the peak protrusions, and the peak protrusions on the adjacent signal lines are oppositely arranged.

Preferably, an auxiliary pointed area is additionally provided on the opposite side of the peaked protrusion, the auxiliary pointed area is located outside the effective display part, and has one or more pointed points corresponding to the pointed protrusion.

Preferably, the auxiliary tip region is arranged on the common electrode.

Preferably, the signal lines and the spikes are located on the same layer.

Preferably, the peak protrusion next to the via hole area is an extension of the signal line connected to the shorting bar to the outside of the shorting bar.

Preferably, beside the via hole area, there are also sharp protrusions on the same layer as the shorting bar, opposite to the sharp peaks on the same layer as the signal line and the sharp peaks on the same layer as the shorting bar.

Preferably, the tip of the peak protrusion is horn-shaped or cone-shaped.

Once the static electricity is too large in the manufacturing process, the charge accumulated on the shorting bar and the connection part between the shorting bar and the signal line, such as the via hole area, will immediately move to the peak protrusion, forming a tip discharge at the tip of the peak protrusion, greatly The damage to the via hole caused by static electricity is reduced, so that the electrical test can be carried out normally. Therefore, compared with the prior art, the present invention reduces the possibility of the via hole region being burned due to static electricity.

Embodiment one

FIG. 4 is a schematic structural diagram of Embodiment 1 of a display device of the present invention. The display device of the present invention will be described below with reference to FIG. 4 .

In this embodiment, the display device includes: an effective display part 10 composed of display pixels; a signal line 1005 electrically connected to the effective display part 10 and an inspection device 20, wherein the signal line 1005 can be connected to a data line, a scan line, a gate line, etc. line, specifically, in this implementation example, a data line is used as an example for introduction.

As shown in FIG. 4, the inspection device 20 includes shorting bars arranged at intervals. For example, FIG. -2, 1005-3 are electrically connected through the via hole area, and the shorting bar 104 is electrically connected with the gate line or scanning line (not shown in the figure) through the via hole area. Wherein, the via area has a contact hole 106 and a connecting conductive layer 107, and a part of the connecting conductive layer 107 is filled in the contact hole 106 for electrically connecting the shorting bar and the signal line. One end of the shorting bars 101-104 has a test pad 109 for electrical testing. In this embodiment, the test pad 109 may be in the shape of a square. Wherein the width of the test pad 109 is larger than that of the short bar 104 to facilitate electrical testing. Of course, the shape of the test pad can be any other equivalent shape such as circle, trapezoid, pentagon, hexagon, etc.

In some other specific embodiments of the present invention, the signal line may also have a switch element so as to disconnect the signal line from the shorting bar after the detection by the inspection device is completed. But preferably, there is no switching element on the signal line in this embodiment. This is mainly because, if the switch element is manufactured on the signal line, a large amount of charge may be accumulated in the switch element region or the via hole region during the manufacturing process, so that the switch The component or the via area is burned, causing the signal line and the short-circuit bar to be electrically disconnected, which ultimately affects the electrical test.

The inspection device 20 also includes a spike 108 electrically connected to the shorting bars 101-104.

Preferably, the spiked protrusion 108 is located at the end of the shorting bar 101-104 without the test pad 109.

Preferably, the shorting bars 101-104 of the present invention may be located in the same layer or in different layers. Specifically, when the shorting bar is located on the same layer, the shorting bar can be manufactured together with the scanning line or data line, and is located on the same layer as the scanning line or data line; when the shorting bar is located on a different layer, Some of the shorting bars can be manufactured together with the data lines and located in the same layer as the data lines, and the rest of the shorting bars can be manufactured together with the scanning lines and located in the same layer as the scanning lines. However, when the shorting bar is located in a different layer, the process of forming the via area of the shorting bar and the signal line is relatively complicated, so it is best that the shorting bar is in the same layer in this embodiment .

Preferably, the peak protrusion 108 and the shorting bars 101-104 are located on the same layer. Specifically, the peak protrusion 108 is an extension of the shorting bar 101-104, that is, one end of the shorting bar 101-104 is designed as the peak protrusion 108 in the shape of an angle or a cone. Of course, in other embodiments, the peak protrusion 108 and the shorting bar may also be located at different layers.

Preferably, each of the shorting bars 101-104 has only one tip that is horn-shaped or cone-shaped. This is because there is only one spike on each shorting bar 101-104 compared to having multiple angular or conical peaks at the tip of the same shorting bar can reduce process accuracy; and the shorting bar does not need to be made It is too wide, which is especially suitable for high-density typesetting in current panel designs; and it can improve the utilization rate of glass; at the same time, this setting makes it less demanding on the graphic accuracy of the exposure mask during the production process.

Preferably, there is no insulating layer at the tip of the peak protrusion, or the insulating layer at the tip is etched away during the manufacturing process, which can further improve the discharge efficiency and reduce the risk of burning the via area.

As shown in FIG. 4, the spikes 108 are directly exposed to the air, so once the static electricity is too large during the manufacturing process, the charges accumulated on the shorting bars 101-104 and the contact holes 106 will immediately move to the spikes 108. , directly discharges the air at its tip, which greatly reduces the damage of static electricity to the via area, especially the contact hole 106, so that the electrical test can be carried out normally.

In addition, in the present invention, an auxiliary pointed area (not shown) may be additionally provided on the opposite side of the peak protrusion 108, the auxiliary pointed area is located outside the effective display part, and has one or more The tip corresponds to the peak protrusion 108, so as to facilitate tip-to-tip discharge and enhance the discharge effect. The subsidiary tip area is not electrically connected to the shorting bar, and preferably, the subsidiary tip area may be disposed on a common electrode (not shown).

Embodiment two

FIG. 5 is a schematic structural diagram of a detection device and a signal line in Embodiment 2 of a display device of the present invention. The display device of the present invention will be described below in conjunction with the structure of the detection device and the signal line shown in FIG. 5 .

The same parts of the second embodiment and the first embodiment will not be repeated, in this embodiment:

As shown in FIG. 5 , there are no spikes at the ends of the shorting bars 201 - 204 that do not have the test pad 209 , but there are spikes 100 on the test pad 209 .

Preferably, the peak protrusion 100 and the test pad 209 are located on the same layer. Specifically, the peak protrusion 100 is an extension of the test pad 209 , that is, one end of the test pad 209 is designed as an angular or cone-shaped peak protrusion 100 . Of course, in other embodiments, the peak protrusions 100 and the test pads 209 may also be located on different layers.

Embodiment three

FIG. 6 is a schematic structural diagram of a detection device and a signal line in Embodiment 3 of a display device of the present invention. The display device of the present invention will be described below in conjunction with the structure of the detection device and the signal line shown in FIG. 6 .

The same parts of the third embodiment and the first embodiment will not be repeated, in this embodiment:

As shown in FIG. 6 , not only the ends of the shorting bars 301 - 304 without the test pad 309 have spikes, but also the test pad 309 has spikes 300 . Since both ends of the shorting bar have spikes, the static charge can quickly move to the two spikes, which greatly reduces the risk of burning the via area.

Preferably, one end of the same shorting bar without the test liner has one sharp protrusion.

Preferably, the peak protrusion 300 and the test liner 309 are located on the same layer, specifically, the peak protrusion 300 is an extension of the test liner 309, that is, one end of the test liner 309 is designed so that the tip is an angle or a cone 300-like spikes raised. Certainly, in other embodiments, the peak protrusion 300 and the test pad 309 may also be located on a different layer.

Embodiment four

FIG. 7 is a schematic structural diagram of a detection device and a signal line in Embodiment 4 of a display device of the present invention. The display device of the present invention will be described below in conjunction with the structure of the detection device and the signal line shown in FIG. 7 .

The same parts of the fourth embodiment and the first embodiment will not be repeated. In this embodiment:

As shown in FIG. 7 , the ends of the shorting bars 401 - 404 without the test pad 409 have spiked protrusions 408 . Moreover, the pointed ends of the peak protrusions 408 on the shorting bars connected to different signal lines are oppositely arranged. Wherein, the peak protrusions may be located in the same layer or in different layers. When the peaks are located on different layers, in addition to being oppositely arranged, partial overlap is allowed between the peaks.

Preferably, one end of the same shorting bar without the test liner has one sharp protrusion.

Of course, in other embodiments, two or three of the peak protrusions 408 may also form a structure in which the tips are opposite to each other. The tips of -1, 408-2, 408-3 are set relative to each other.

Specifically, there may be no insulating layer on the surface of the peak protrusion 408, thereby improving the discharge efficiency and reducing damage to the via area by static electricity.

As shown in FIG. 7 , because the tips of the peak protrusions 408 are arranged oppositely, even if the static electricity is too large during the manufacturing process, the charges accumulated on the shorting bars 401-404 and the via area will immediately move to the peak protrusions 408, Therefore, the tip-to-tip discharge is made, which greatly reduces the damage to the via area caused by static electricity, so that the electrical test can be carried out normally.

Embodiment five

FIG. 8 is a schematic structural diagram of a detection device and a signal line in Embodiment 5 of a display device of the present invention. The display device of the present invention will be described below in conjunction with the structure of the detection device and the signal line shown in FIG. 8 .

The same parts of the fifth embodiment and the fourth embodiment will not be repeated. In this embodiment:

There are test pads 509 at one end of the shorting bars 501-504 for electrical testing, and the test pads 509 have sharp protrusions 500 thereon.

Preferably, one end of the same shorting bar without the test liner has one sharp protrusion.

Since the short-circuit bar has no test pads at one end and the test pads are provided with spikes, the electrostatic charge can quickly move to the spikes at both ends, which greatly reduces the risk of burning the via area.

Embodiment six

FIG. 9 is a schematic structural diagram of a detection device and a signal line in Embodiment 6 of a display device of the present invention. The display device of the present invention will be described below in conjunction with the structure of the detection device and the signal line shown in FIG. 9 .

The same parts of the sixth embodiment and the fifth embodiment will not be repeated. In this embodiment:

One end of the shorting bars 601-604 has a test pad 609 for electrical testing, and the test pad 609 has a peak protrusion 600. Specifically, one end of the test pad 609 is designed to have a sharp point or a cone The spikes are raised to 600. In addition, the tips of the peak protrusions 600 on the shorting bars connected to different signal lines are also arranged oppositely, for example, the peak protrusions 609-1, 609-2, 609-3, and 609-4 are arranged oppositely, or one of them may be Two or three sharp peaks are arranged opposite to each other.

Of course, in other embodiments, it is also possible to only set the peaks on the test liner opposite to each other, and the end of the shorting bar not having the test liner 409 is not provided with the peaks opposite to each other, or the peaks are not provided. rise.

Since both ends of the shorting bar in this embodiment have spikes, the static charge can quickly move to the ends of the two spikes, and the spikes at both ends are arranged in a structure where the tips are opposite, so that the tip is discharged through the tip, The release of electrostatic charge is accelerated, thus greatly reducing the risk of burning the via area.

Embodiment seven

FIG. 10 is a schematic structural diagram of a detection device and a signal line in Embodiment 7 of a display device of the present invention. The display device of the present invention will be described below in conjunction with the structure of the detection device and the signal line shown in FIG. 10 .

The same parts of the seventh embodiment and the foregoing embodiments will not be repeated, and in this implementation manner:

As shown in Figure 10, the shorting bar 701-704 is close to the position electrically connected with the signal line, for example, the shorting bar 701-704 is electrically connected with the signal line through the via area, and beside the via area, that is, beside the contact hole 106, there is One or more peak protrusions 708, the peak protrusions 708 can be located on the shorting bar or on the signal line. The peak protrusions 708 can be located on the same side of the shorting bar as shown in FIG. 10 , or can be located on different sides of the shorting bar, or there are peaks on the sides of each shorting bar close to the adjacent shorting bars on both sides. bulges, and the peaks and bulges between the shorting bars are set opposite to each other.

Preferably, the peaked protrusion 708 and the shorting bars 701-704 are located on the same layer, specifically, the pointed portion of the peaked protrusion 708 is horn-shaped or cone-shaped.

Specifically, there is no insulating layer on the surface of the test pad 709 of the shorting bars 701-704 and the tip portion of the peak protrusion 708 of the shorting bars 701-704.

Certainly, in other embodiments, the test pad 709 may also have the peak protrusions in the above embodiments.

As shown in FIG. 10 , because the peak protrusion 708 is arranged next to the via hole area, and the peak protrusion 708 is directly exposed to the air, once the static electricity is too large during the process, the charge accumulated at the via hole area will immediately go to the air. The peak protrusion 708 moves and discharges directly to the air at its tip, which greatly reduces the damage of static electricity to the via area, so that the electrical test can be carried out normally, because the via area is easily damaged by static electricity and affects the electrical test, so it is preferred Arranging the peak protrusion 708 next to the via area can effectively prevent damage to the via area by static electricity.

Embodiment eight

FIG. 11 is a schematic structural diagram of a detection device and a signal line in Embodiment 8 of a display device of the present invention. The display device of the present invention will be described below in conjunction with the structure of the detection device and the signal line shown in FIG. 11 .

The same parts of the eighth embodiment and the seventh embodiment will not be repeated. In this embodiment:

The peak protrusion 808 is located on the same layer as the signal line, for example, on the same layer as the data line, and is located on the top of the data line, which is an extension of the data line to the outside of the shorting bar. In this embodiment, the peak protrusions 808 are located in the same layer as the signal lines, so that the process steps of etching to form the peak protrusions are simpler. In addition, the peak protrusions are provided on the side of each of the signal lines close to the adjacent signal lines on both sides, and the peak protrusions of the adjacent signal lines are arranged opposite to each other.

Embodiment nine

FIG. 12 is a schematic structural diagram of a detection device and a signal line in Embodiment 9 of a display device of the present invention. The display device of the present invention will be described below in conjunction with the structure of the detection device and the signal line shown in FIG. 12 .

The same parts of the ninth embodiment and the eighth embodiment will not be repeated. In this embodiment:

On the shorting bar, in addition to the peaked protrusion 808 at the top of the signal line, there is another peaked protrusion 711 next to the via area. The peaked protrusion 711 and the shorting bar are located on the same layer, and the peaked protrusion 711 is a corner shape or cone.

Embodiment ten

FIG. 13 is a schematic structural diagram of the detection device and the signal line in Embodiment 10 of the display device of the present invention. The display device of the present invention will be described below in conjunction with the structure of the detection device and the signal line shown in FIG. 13 .

The same parts of the tenth embodiment and the ninth embodiment will not be repeated. In this embodiment:

The tip portions of the peak protrusion 808 and the peak protrusion 711 on the same shorting bar are designed to be opposite to each other. Because the tip of the peak protrusion 808 and the tip of the peak protrusion 711 are set opposite to each other, the static electricity is too large during the manufacturing process, and the accumulated charge will immediately move to the peak protrusions 808 and 711 , thereby tip-to-tip discharge.

Embodiment Eleven

FIG. 14 is a schematic structural diagram of a detection device and a signal line in Embodiment 11 of a display device of the present invention. The display device of the present invention will be described below in conjunction with the structure of the detection device and the signal line shown in FIG. 14 .

The same parts of the eleventh embodiment and the above-mentioned embodiments will not be repeated, and in this implementation manner:

As shown in FIG. 14 , there are peak protrusions 713 and 714 next to the connecting position of the shorting bar and the signal line, and the peak protrusions 713 and 714 are respectively located on the two sides of the shorting bar near the adjacent shorting bars on both sides, and are short-circuited. The tip of the peak protrusion 713 of the bar and the peak protrusion 714 on the adjacent shorting bar are oppositely arranged.

In addition, in each embodiment, the settings of the peaks and protrusions can be combined arbitrarily. They are not listed here. Therefore, in the above embodiment, once the static electricity is too large during the manufacturing process, the charge accumulated on the shorting bar and the contact hole will immediately move to the tip, forming a tip discharge at the tip, which greatly reduces the damage of the static electricity to the via hole area. Make the electrical test go on normally.

10-14 of the present invention are designed with peaks and protrusions next to the via area, which can discharge quickly. There is no insulating layer on the tip of the invention, and no insulating layer between the tips, which improves the discharge efficiency and has obvious electrostatic discharge effect. In addition, the material of the peak protrusions in the present invention can be one or more of aluminum, aluminum neodymium alloy, indium tin oxide, molybdenum, molybdenum neodymium alloy, etc., preferably, the peak protrusions in the present invention The material used is indium tin oxide because of its strong corrosion resistance.

The above descriptions are only preferred embodiments of the present invention, and do not limit the present invention in any form.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person familiar with the art, without departing from the scope of the technical solution of the present invention, can use the methods and technical content disclosed above to make many possible changes and modifications to the technical solution of the present invention, or modify it into an equivalent implementation of equivalent changes example. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention, which do not deviate from the technical solution of the present invention, still fall within the protection scope of the technical solution of the present invention.

Claims (23)

1. A display device, comprising: an effective display part made of display pixels, a signal line electrically connected to the effective display part and an inspection device, the inspection device comprising short-circuit bars arranged at intervals; it is characterized in that each short-circuit The bars are electrically connected to different signal lines respectively through the via hole area, and one end of the shorting bar has a test pad, and the inspection device also includes a spike protrusion electrically connected to the shorting bar. 2 . The display device according to claim 1 , wherein the peak protrusion is located at one end of the shorting bar without a test pad. 3 . 3 . The display device according to claim 2 , wherein one end of the same shorting bar without the test pad has one said peak protrusion. 4 . 4 . The display device according to claim 3 , wherein the pointed ends of the spikes on the ends of the shorting bars connected to different signal lines that do not have the test pads are opposite to each other. 5 . 5 . The display device according to claim 1 , wherein the peak protrusion is located on a test pad of the shorting bar. 6 . The display device according to claim 5 , wherein the tips of the spikes on the test pads of the shorting bars connected to different signal lines are opposite to each other. 7 . 7 . The display device according to claim 3 , wherein the spiked protrusions are provided on the test pads of the shorting bars. 8 . The display device according to claim 7 , wherein the tips of the spikes on the ends of the shorting bars connected to different signal lines that do not have the test pads are opposite to each other. 9 . 9 . The display device according to claim 8 , wherein the points of the spikes on the test pads of the shorting bars connected to different signal lines are opposite to each other. 10 . 10 . The display device according to claim 7 , wherein the tips of the spikes on the test pads of the shorting bars connected to different signal lines are opposite to each other. 11 . 11. The display device according to claim 1, wherein the peak protrusion is located beside the via hole area. 12. The display device according to claim 11, characterized in that, the side surfaces of the shorting bars close to the adjacent shorting bars on both sides respectively have the peak protrusions, and the adjacent shorting bars have The protruding tips of the peaks are opposite. 13. The display device according to any one of claims 1 to 12, characterized in that, the tip of the peak protrusion is horn-shaped or cone-shaped. 14. The display device according to any one of claims 1 to 12, wherein the shorting bar and the peak protrusion are located on the same layer. 15. The display device according to any one of claims 1 to 12, wherein the materials of the peaks are one or more of aluminum, aluminum neodymium alloy, molybdenum, and molybdenum neodymium alloy. 16. The display device according to any one of claims 1-12, wherein the material of the peak protrusions is indium tin oxide. 17. The display device according to claim 12, characterized in that, the side surfaces of the signal lines close to the adjacent signal lines on both sides are provided with the peak protrusions, and the adjacent signal lines The sharp peaks and protrusions are arranged opposite to each other. 18. The display device according to claim 1 or 17, characterized in that, the opposite side of the peak protrusion is additionally provided with an auxiliary pointed area, the auxiliary pointed area is located outside the effective display part, and has one or A plurality of points correspond to the peaked protrusions. 19. The display device according to claim 18, wherein the auxiliary tip region is disposed on the common electrode. 20. The display device according to claim 11, wherein the signal line and the peak protrusion are located on the same layer. 21 . The display device according to claim 20 , wherein the sharp peaks beside the via area are extensions of the signal lines connected to the shorting bar to the outside of the shorting bar. 22. The display device according to claim 21, characterized in that besides the via area, there are also spiked protrusions located on the same layer as the shorting bar, the peaked protrusions located on the same layer as the signal lines and the The shorting bar is located on the same layer as the pointed protruding tip opposite. 23. The display device according to any one of claims 20-22, characterized in that, the tip of the peak protrusion is horn-shaped or cone-shaped.

Images