WO2020087818A1

WO2020087818A1 - Display and display panel thereof

Info

Publication number: WO2020087818A1
Application number: PCT/CN2019/076364
Authority: WO
Inventors: 刘权; 秦旭; 王欢; 张露; 张金方; 胡思明; 韩珍珍
Original assignee: 昆山国显光电有限公司
Priority date: 2018-10-30
Filing date: 2019-02-27
Publication date: 2020-05-07
Also published as: CN109192137B; CN109192137A

Abstract

A display and a display panel thereof. A signal trace (124) is provided, and the signal trace (124) is designed to be adjacent to a step in the row direction of two adjacent rows of pixel units (111), such that gate driving units (123) are close to the pixel units (111), so as to reduce the area of a non-display region, thereby facilitating realizing narrow-bezel display.

Description

Monitor and display panel

【Technical Field】

The present application relates to the field of display technology, in particular to a display and its display panel.

【Background technique】

With the development of display technology, in order to further improve the display effect of the display panel, at least one corner of the display panel is often designed into a circular arc shape. The display panel usually includes a display area and a non-display area. Pixels used for image display are distributed in the display area, and related circuits and traces for driving the pixel unit are distributed in the non-display area.

In the process of realizing the traditional technology, the inventor found that there are at least the following problems: because the shape of the display panel is not a regular rectangle, the distribution of its circuits and traces is more complicated, which is not conducive to the reduction of the area of the non-display area. The realization of the display creates obstacles.

[Invention content]

Therefore, in this application, it is necessary to provide a display and a display panel for the above problems.

A display panel according to an embodiment of the present application includes a display area and a non-display area located around the display area. The display area includes pixel units arranged row by row, and the pixel units in two adjacent rows are formed with steps, wherein, The non-display area is provided with a signal wiring and at least one gate driving unit, the signal wiring is connected to the gate driving unit and a scanning line for driving the pixel unit, and the signal wiring is adjacent to the The steps are described.

A display according to an embodiment of the present application includes a driving circuit and the above display panel. The driving circuit is electrically coupled to the gate driving unit of the display panel.

The display and its display panel provided by this application are provided with signal traces, and the signal traces are adjacent to the steps of two adjacent rows of pixel units in the row direction, so that the gate driving unit is close to the pixel unit, thereby reducing the area of the non-display area , Is conducive to achieving narrow border display.

【Explanation】

FIG. 1 is a partial structural schematic diagram of a display panel according to an embodiment of the present application;

2 is a partial wiring diagram of an embodiment of the display panel shown in FIG. 1;

FIG. 3 is a partial wiring diagram of another embodiment of the display panel shown in FIG. 1.

【detailed description】

The primary purpose of the present application is to design the signal traces to be adjacent to the steps of two adjacent rows of pixel units in the row direction, so that the gate driving unit is close to the pixel unit, thereby reducing the area of the non-display area.

Based on the above purpose, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. It can be understood that the specific embodiments described here are only used for explaining the present application, rather than limiting the present application. In the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other. In addition, it should be noted that, for ease of description, the drawings only show parts, but not all structures related to the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

FIG. 1 is a partial structural diagram of a display panel according to an embodiment of the application. As shown in FIG. 1, the display panel 10 includes a display area 11 and a non-display area 12 located around the display area.

The display area 11 has at least one row of pixel units 111 arranged in an array. Each pixel unit 111 includes three sub-pixels, for example, R (Red, red) sub-pixels, G (Green, green) sub-pixels, and B (Blue, blue) sub-pixels. Each sub-pixel can display different gray levels under the control of the driving circuit, so that the display panel 10 can display a color image.

At least one corner of the display area 11 is an arc-shaped corner. Specifically, the display area 11 has at least two adjacent straight edges, and an arc-shaped corner is formed between the two adjacent straight edges. Based on this design, there are at least two adjacent rows of pixel units 111 in the display panel 10 in the area where the arc corner is located. For example, in FIG. 2, the number of pixel units 111 in the second row is higher than that in the first row There is one more pixel unit 111 in a row, which results in a step formed on the pixel units 111 in the two adjacent rows. Wherein, the size of any two of the steps in the row direction may be the same or different, and the difference in the size of the two steps in the row direction is equal to an integer multiple of a sub-pixel in the row direction, which depends on the The pixel structure design of the display panel 10. For example, in FIG. 2, for the steps formed by the pixel units 111 and 111 in the first row and the pixel units 111 and 111 in the second row, the two steps are The difference in the dimension (ie width) in the row direction is equal to the dimension in the row direction of a sub-pixel.

The non-display area 12 is distributed with drive circuits and traces for driving the sub-pixels to emit light. Specifically, the non-display area 12 includes a gate driving area (GIP, Gate In Panel) 121 and wiring area 122. At least one gate driving unit 123 is provided in the gate driving area 121. The trace area 122 is closely arranged around the display area 11 and is used to connect the gate driving unit 123 to the corresponding pixel unit 111. Specifically, referring to FIG. 2 or FIG. 3, the wiring area 122 is provided with a signal wiring 124 and a driving output line 125. The driving output line 125 can be regarded as a connecting line extended from the gate driving unit 123. The two can be arranged in the same layer structure. One end of the driving output line 125 is connected to the gate driving unit 123, and the other end of the driving output line 125 is connected to the signal wiring 124. The signal wiring 124 is connected to the driving pixel unit 111. The scanning line 126, whereby the gate driving unit 123 can be used to provide a driving signal to the pixel unit 111 connected thereto.

Each signal trace 124 is connected to a gate driving unit 123. The signal trace 124 can be regarded as a bridge wiring, and the gate driving unit 123 is connected to the corresponding scan line 126 through the bridge wiring. Based on that the driving output line 125 and the signal trace 124 are located in different layers with an insulating layer in between, and the scanning line 126 and the signal trace 124 are also located in different layers with an insulating layer in between, the The drive output line 125 and the signal trace 124 and the scan line 126 and the signal trace 124 may be connected through a through hole, and the through hole is opened in a corresponding insulating layer.

In the present application, the signal trace 124 is disposed adjacent to the step of the display area 11 so that the gate driving unit 123 is as close to the pixel unit 111 as possible, that is, the gate driving area 121 is as close to the display area 11 as possible Therefore, the area of the non-display area 12 is reduced, which is beneficial to the narrow frame design of the display panel 10 and the narrow frame display.

FIG. 2 is a partial wiring diagram of an embodiment of the display panel shown in FIG. 1. Please refer to FIG. 1 and FIG. 2, in the scenario described in this embodiment where multiple scan lines 126 are connected to each pixel unit 111 (three scan lines 126 are taken as an example in the figure), each row of pixel units 111 passes three The scanning line 126 realizes gate driving. The signal trace 124 includes a first trace 124a and a second trace 124b, wherein the first trace 124a is preferably perpendicular to the scan line 126, so that the first trace 124a Is as small as possible to reduce its area in the non-display area 12, each first trace 124a is connected to a gate driving unit 123, and the second trace 124b is used to connect the first trace 124a and the corresponding scanning line 126, specifically, in the adjacent two rows of pixel units 111 in which the steps are formed, the middle one scanning line 126 of the previous row of pixel units 111 and the first scanning line of the following row of pixel units 111 126 is connected to the same first trace 124a. 2, the second scan line 126 of the first row of pixel units 111 and the first scan line 126 of the second row of pixel units 111 are connected to the same first trace 124 a, and the first row of pixel units 111 The first scan line 126 and the third scan line 126 are connected to the same first trace 124a.

Since the display area 11 is provided with the steps in two adjacent rows of pixel units 111, the lengths of the scanning lines 126 of the two rows of pixel units 111 are different. Here, the middle scanning line 126 of the previous row of pixel units 111 passes through the second The trace 124b is connected to the first trace 124a. The second trace 124b corresponds to the bridge line between the scan line 126 and the first trace 124a. Specifically, for multiple scan lines 126 that need to be connected to the same first trace 124a (not limited to FIG. 2 As shown in the two scan lines 126), when the ends of the multiple scan lines 126 at the corners of the arc are not aligned, the length of these scan lines is different, and the longest one The end of 126 is connected to the first trace 124a, and the end of the remaining scan lines 126 and the first trace 124a have a certain distance in the row direction. At this time, the second trace 124b can scan the corresponding one The end of the line 126 is connected to the first trace 124a.

In this embodiment, the first trace 124a is preferably located in the same layer as the data line used to drive the pixel unit 111, and further the manufacturing materials of the two may be the same. Here, in this embodiment, data may be formed The first trace 124a is formed together in the manufacturing process of the wires, so that the manufacturing process of the entire display panel 10 is not increased.

Similarly, the second trace 124b and the scan line 126 can be located in the same layer, and the manufacturing materials of the two can be the same. Here, in this embodiment, the scan line 126 can be formed together in the manufacturing process The second trace 124b does not increase the entire manufacturing process of the display panel 10. Further, the driving output line 125 may also be located in the same layer as the scan line 126, and further the manufacturing materials of the two may be the same. Here, in this embodiment, the scan line 126 may be formed together in the manufacturing process The output line 125 is driven so as not to increase the entire manufacturing process of the display panel 10.

Of course, the second trace 124b may also be located in the same layer as the first trace 124a and the data line. Further, the manufacturing materials of the two traces 124b may be the same. Here, in this embodiment, the data line may be formed in one process. And the second trace 124b is formed. At this time, the second trace 124b can be regarded as a trace extending from the first trace 124a toward the scan line 126.

2, the display panel 10 further includes a first electrostatic protection component 129a and a second electrostatic protection component 129b, the first electrostatic protection component 129a is connected to the first trace 124a, and the second electrostatic protection component The projection of 129b and the first electrostatic protection component 129a on the display panel 10 at least partially overlap.

The first electrostatic protection component 129a and the second electrostatic protection component 129b are not on the same layer, and an insulating layer is provided between the two. Here, the first electrostatic protection component 129a and the second electrostatic protection component 129b are interposed between the two The insulating layer between the two forms a capacitor. The capacitor protrudes out of the first trace 124a to generate a spike effect, so that the first electrostatic protection component 129a and the second electrostatic protection component 129b can discharge static electricity generated on at least one of the signal trace 124 and the scanning line 126 Boot release. Therefore, the first electrostatic protection component 129a and the second electrostatic protection component 129b are used to guide static electricity generated on at least one of the signal trace 124 and the scanning line 126 to the first electrostatic protection component 129a and the second electrostatic protection The component 129b detonated in the area where it was located.

This application is equivalent to providing an electrostatic protection function for the display panel 10. The first electrostatic protection component 129a and the second electrostatic protection component 129b are provided to guide the static electricity generated on the display panel 10 to the area where the first electrostatic protection component 129a and the second electrostatic protection component 129b are detonated, thereby reducing static electricity The display panel 10 is damaged.

Specifically, the first electrostatic protection component 129a extends from one end of the first trace 124a, and the extending direction of the second electrostatic protection component 129b is perpendicular to the extending direction of the first trace 124a.

The first electrostatic protection component 129a is electrically connected to the first trace 124a, and the first electrostatic protection component 129a and the first trace 124a are disposed in the same layer. In this application, the first electrostatic protection component 129a is preferably the first trace 124a Partly, here, the two can be formed by the same process, so that no additional process is added. The second electrostatic protection element 129b is preferably disposed in the same layer as the scanning line 126 but spaced apart from the scanning line 126. Here, in this embodiment, the second electrostatic protection element 129b and the scanning line 126 can be formed by the same process.

FIG. 3 is a partial wiring diagram of another embodiment of the display panel shown in FIG. 1. This application uses the same reference numerals for the same structural elements. 1 and FIG. 3, based on the description of the foregoing embodiment, but different from the foregoing embodiment, the description of this embodiment is for each pixel unit 111 is connected to a scan line 126 scene, each A row of pixel units 111 realizes gate driving through a scan line 126, and the signal trace 124 is perpendicular to the scan line 126, so that the size of the signal trace 124 is as small as possible to reduce the area occupied by the non-display area 12 And the signal trace 124 is used to connect the drive output line 125 and the corresponding scan line 126. At this time, each row of pixel units 111 is connected to a signal trace 124 and is connected to the corresponding gate driving unit 123 through the signal trace 124.

The signal trace 124 in this embodiment is equivalent to the first trace 124a in the embodiment shown in FIG. 2. Since the signal trace 124 is disposed adjacent to the step at the arc corner, the signal trace 124 may correspond to The end of one of the scan lines 126 is directly connected, so this embodiment does not require the second trace 124b in the embodiment shown in FIG. 2.

In this embodiment, the signal trace 124 is preferably located in the same layer as the data line used to drive the pixel unit 111. Further, the manufacturing materials of the two may be the same. Here, in this embodiment, data may be formed The signal traces 124 are formed together in the manufacturing process of the wires, so that the manufacturing process of the entire display panel 10 is not increased.

3, the display panel 10 further includes a first electrostatic protection component 129a and a second electrostatic protection component 129b, the first electrostatic protection component 129a is electrically connected to the signal trace 124, and the second electrostatic protection component The projection of 129b and the first electrostatic protection component 129a on the display panel 10 at least partially overlap.

The first electrostatic protection component 129a and the second electrostatic protection component 129b are not on the same layer, and an insulating layer is provided between the two. Here, the first electrostatic protection component 129a and the second electrostatic protection component 129b are interposed between the two The insulating layer between the two forms a capacitor. The capacitor protrudes from the signal trace 124 to generate a spike effect, so that the first electrostatic protection component 129a and the second electrostatic protection component 129b can guide the static electricity generated on at least one of the signal trace 124 and the scanning line 126 freed. Therefore, the first electrostatic protection component 129a and the second electrostatic protection component 129b are used to guide static electricity generated on at least one of the signal trace 124 and the scanning line 126 to the first electrostatic protection component 129a and the second electrostatic protection The component 129b detonated in the area where it was located.

Specifically, the first electrostatic protection component 129a extends from one end of the signal trace 124, and the extending direction of the second electrostatic protection component 129b is perpendicular to the extending direction of the signal trace 124.

The first electrostatic protection component 129a is electrically connected to the signal wiring 124, and the first electrostatic protection component 129a and the signal wiring 124 are disposed in the same layer. In this application, the first electrostatic protection component 129a is preferably a part of the signal wiring 124. Therefore, both can be formed by the same process, so that no additional process is added. The second electrostatic protection element 129b is preferably disposed in the same layer as the scanning line 126 but spaced apart from the scanning line 126. Here, in this embodiment, the second electrostatic protection element 129b and the scanning line 126 can be formed by the same process.

Please continue to refer to FIG. 1 to FIG. 3, no matter what pixel structure design is adopted, for example, in actual production application scenarios, in order to ensure a sufficient number of gate driving units 123 so that each row of pixel units 111 is connected to the gate driving unit 123 At this time, in the area where the arc-shaped corner is located, the number of gate driving units 123 is generally greater than the number of rows of the pixel unit 111. In this application, the signal trace 124 is preferably connected to the gate driving unit 123 closest to it, thereby The gate drive unit 123 is connected to the nearest signal trace 124. At this time, the distance between the signal trace 124 and the gate drive unit 123 connected thereto is the shortest, the size of the drive output line 125 is the shortest, the gate The driving area 121 is closer to the display area 11, which further reduces the area of the non-display area 12, and is more conducive to the narrow frame design of the display panel 10 and the narrow frame display.

It should be understood that the display panel 10 of the foregoing embodiment of the present application further includes other structures. For example, as shown in FIG. 1, the display panel 10 further includes a power trace area 127 and a packaging area 128, wherein the power trace area 127 is provided. It is between the gate driving area 121 and the encapsulation area 128, and is used for the pixel unit 111 to provide a power signal. The encapsulation area 128 and the power trace area 127 are bonded to protect the display panel. Specifically, the encapsulation area 128 is usually arranged on the outermost side of the non-display area 12 for isolating water vapor and oxygen, to prevent the water vapor and oxygen from adversely affecting the driving circuit and the wiring structure in the display panel 10, and to ensure the normality of the display panel 10. jobs.

In addition, the present application does not limit the type of the display panel 10, for example, the above display panel 10 may be an OLED (Organic Light-Emitting Diode (organic light-emitting diode) display panel can also be a flexible display panel.

The present application further provides a display including a driving circuit and a display panel. The driving circuit is electrically coupled to the gate driving unit of the display panel. The display panel may have the same structural design as any of the foregoing embodiments, and thus has the same beneficial effects.

It should be understood that the terms “first”, “second”, and “third” in this application are for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. The meaning of "plurality" is at least two, such as two, three, etc., unless specifically defined otherwise. All directional indicators (such as up, down, left, right, front, back ...) in the embodiments of the present application are only used to explain the relative positional relationship between the components in a certain posture (as shown in the drawings) , Movement, etc., if the specific posture changes, the directional indication changes accordingly.

In addition, the above are only the embodiments of the present application, and therefore do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the description and drawings of the present application, such as technical features between the embodiments The combination of each other, or direct or indirect application in other related technical fields, are equally included in the scope of patent protection of this application.

Claims

A display panel, including:

A display area, the display area including pixel units arranged row by row, and the pixel units of two adjacent rows have steps formed in the row direction due to misalignment of end portions; and

A non-display area located around the display area, wherein the non-display area is provided with a signal trace and at least one gate drive unit, the signal trace is connected to the gate drive unit and used to drive the pixel The scan line of the cell, and the signal trace is adjacent to the step.
The display panel according to claim 1, wherein the signal trace is perpendicular to the scan line.
The display panel according to claim 2, wherein the signal trace and the data line for driving the pixel unit are on the same layer.
The display panel according to claim 2, wherein the signal wiring and the data line for driving the pixel unit are made of the same material.
The display panel according to claim 1, wherein the signal trace includes a first trace and a second trace, the first trace is perpendicular to the scan line, and the second trace is used for connection The first trace and the scan line.
The display panel according to claim 5, wherein the first trace and the data line for driving the pixel unit are on the same layer.
The display panel according to claim 5, wherein the first trace and the data line for driving the pixel unit are made of the same material.
The display panel according to claim 5, wherein the second trace and the scan line for driving the pixel unit are on the same layer.
The display panel according to claim 5, wherein the second trace and the scan line for driving the pixel unit are made of the same material.
The display panel according to claim 1, wherein the signal trace is connected to the gate driving unit closest to it.
The display panel according to claim 1, wherein the display panel is a flexible display panel.
A display, wherein the display includes a driving circuit and a display panel, the display panel includes a display area and a non-display area located around the display area, the display area includes pixel units arranged line by line, adjacent two Rows of the pixel units are formed with steps due to misalignment of ends in the row direction, and the non-display area is provided with signal traces and at least one gate drive unit, and the signal traces are connected to the gate drive unit and the The scanning line of the pixel unit is driven, and the signal trace is adjacent to the step, and the driving circuit is electrically coupled to the gate driving unit.
The display according to claim 12, wherein the signal trace is perpendicular to the scan line.
The display according to claim 13, wherein the signal trace and the data line for driving the pixel unit are on the same layer.
The display according to claim 13, wherein the signal wiring and the data line for driving the pixel unit are made of the same material.
The display according to claim 12, wherein the signal trace includes a first trace and a second trace, the first trace is perpendicular to the scan line, and the second trace is used to connect the The first trace and the scan line.
The display according to claim 16, wherein the first trace and the data line for driving the pixel unit are on the same layer.
The display according to claim 16, wherein the second trace and the scan line for driving the pixel unit are on the same layer.
The display according to claim 12, wherein the signal trace is connected to the gate driving unit closest to it.
The display according to claim 12, wherein the display panel is a flexible display panel.