WO2020147041A1

WO2020147041A1 - Amoled display panel and display

Info

Publication number: WO2020147041A1
Application number: PCT/CN2019/072004
Authority: WO
Inventors: 吴焕达
Original assignee: 深圳市柔宇科技有限公司
Priority date: 2019-01-16
Filing date: 2019-01-16
Publication date: 2020-07-23
Also published as: CN113261047A

Abstract

An AMOLED display panel, comprising: a display area (300), a plurality of transmission lines (310) being provided therein, and the plurality of transmission lines being used for transmitting a driving voltage that drives an OLED to emit light; a non-display area (400), at least one driving voltage input bar (420) and a first shorting bar (410) being provided in the non-display area (400), the first shorting bar (410) being electrically connected to the driving voltage input bar (420), and the plurality of transmission lines (310) extending to the non-display area (400) to be electrically connected to different positions of the first shorting bar (410), respectively; the position where the first shorting bar (410) is electrically connected to the driving voltage input bar (420) protrudes in a direction distant from the display area (300) with respect to other positions of the first shorting bar (410), thereby enabling light emission of the OLED in the display area uniform.

Description

AMOLED display panels and displays

Technical field

The present invention relates to the field of display technology, in particular to an AMOLED display panel and a display.

Background technique

The AMOLED (Active-matrix organic light-emitting diode) display panel includes a display area and a non-display area. There are multiple OLEDs (Organic Light-Emitting Diodes) in the display area. The AMOLED display panel displays when the OLED emits light. In order to drive the OLED to emit light, it is necessary to input a driving voltage to the OLED. In order to input the driving voltage, the AMOLED display panel is provided with multiple transmission lines in the display area, and a driving voltage input bar and a shorting bar are provided in the non-display area. The driving voltage input bar is used When the driving voltage is input, the driving voltage input rod and the transmission line are respectively electrically connected to the shorting bar and are located on opposite sides of the shorting bar. When the driving voltage input rod inputs the driving voltage, the shorting bar receives the driving voltage and transmits them to the transmission line respectively . Since each transmission line is connected to the shorting bar at different positions, some positions are closer to the input bar, and some are farther away from the input bar. Due to the resistance of the shorting bar itself, the transmission line is closer to the input bar. The driving voltage of the OLED should be higher, and the driving voltage on the transmission line farther from the input rod will be lower, resulting in a difference in the driving voltage transmitted to the OLED through different transmission lines, and finally resulting in a difference in the OLED light emission, resulting in an AMOLED display panel The display is uneven.

Summary of the invention

The technical problem to be solved by the embodiments of the present invention is to provide an AMOLED display panel and a display. The OLED can emit light more uniformly, and the AMOLED display panel can emit light more uniformly.

In order to solve the above technical problems, an embodiment of the first aspect of the present invention provides an AMOLED display panel, including:

The display area is provided with multiple transmission lines, and the multiple transmission lines are used to transmit the driving voltage for driving the OLED to emit light;

In the non-display area, at least one driving voltage input bar and a first shorting bar are arranged in the non-display area, the first shorting bar is electrically connected to the driving voltage input bar, and a plurality of the transmission lines extend to the non-display area Are electrically connected to different positions of the first shorting bar;

Wherein, the position where the first shorting bar is electrically connected to the driving voltage input bar protrudes away from the display area relative to other positions of the first shorting bar.

An embodiment of the second aspect of the present invention provides an AMOLED display, including the above-mentioned AMOLED display panel;

Implementing the embodiments of the present invention has the following beneficial effects:

Since the AMOLED display panel includes a non-display area, the non-display area is provided with at least one driving voltage input bar and a first shorting bar, the first shorting bar is electrically connected to the driving voltage input bar, and a plurality of the transmission lines Extend to the non-display area to be electrically connected to different positions of the first shorting bar; the position where the first shorting bar is electrically connected to the driving voltage input bar is farther away from the display area than other positions of the first shorting bar The direction is outstanding. Therefore, transmission lines of different lengths are arranged in the non-display area, which can offset the difference in the driving voltage at different positions on the first shorting bar, and finally the driving voltage transmitted to the OLED in the display area through the transmission line is more consistent, so that the OLED emits light. They are more consistent, and the AMOLED display panel emits more uniform light.

BRIEF DESCRIPTION

In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, without paying any creative work, other drawings can be obtained based on these drawings.

FIG. 1 is a schematic diagram of a prior art AMOLED display panel;

2a is a schematic diagram of an AMOLED display panel according to the first embodiment of the invention;

2b is a schematic diagram of an AMOLED display panel according to another embodiment of the invention;

3 is a schematic diagram of an AMOLED display panel according to a second embodiment of the invention;

Figure 4 is an enlarged view of the elliptical area of Figure 3;

5 is a schematic diagram of an AMOLED display panel according to a third embodiment of the invention;

6 is a schematic diagram of an AMOLED display panel according to another embodiment of the invention;

Icon label:

100, 300-display area; 110, 310, 510, 710-transmission line; 200, 400-non-display area; 210, 410, 610-first shorting bar; 411-first edge part; 412-middle part; 413- The second edge part; 220, 420, 620-drive voltage input bar; 430-the second short-circuit bar.

detailed description

The technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

The terms "including" and "having" appearing in the specification, claims and drawings of this application and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units that are not listed, or optionally also includes Other steps or units inherent to these processes, methods, products or equipment. In addition, the terms "first", "second", and "third" are used to distinguish different objects, but not to describe a specific sequence.

First embodiment

An embodiment of the present invention provides an AMOLED display panel. Referring to FIG. 2a, the AMOLED display panel includes a display area 300 and a non-display area 400.

In this embodiment, the display area 300 is provided with multiple transmission lines 310 and multiple OLEDs (not shown in the figure). The multiple transmission lines 310 are used to transmit driving voltages to drive the OLEDs to emit light. The multiple transmission lines 310 are in the display area. The parts in the 300 are parallel to each other. In this embodiment, the parts of the multiple transmission lines 310 in the display area 300 are arranged vertically, and different transmission lines 310 are used to drive different OLEDs.

In this embodiment, the non-display area 400 is arranged around the display area 300, the upper, lower, left, and right sides of the display area 300 are all non-display areas 400, and the non-display area 400 is provided with at least one driver The voltage input rod 420 and the first shorting rod 410, in this embodiment, the number of the driving voltage input rod 420 is two, of course, it can also be one, three, four or more, but the driving voltage input rod 420 The more the number, the higher the cost, and the driving voltage input rod 420 is used to input the driving voltage. In this embodiment, the two driving voltage input bars 420 and the first shorting bar 410 are both located below the display area 300, and the two driving voltage input bars 420 are respectively electrically connected to the side of the first shorting bar 410 away from the display area 300. Connection, a plurality of transmission lines 310 extend to the non-display area 400 to be electrically connected to different positions of the first shorting bar 410 respectively. In this embodiment, the plurality of transmission lines 310 extend downward to the non-display area 400 to respectively connect with the first shorting bar 410. Different positions on the upper side of the shorting bar 410 are electrically connected. Specifically, a plurality of transmission lines 310 are evenly arranged from the left end of the first shorting bar 410 to the right end of the first shorting bar 410 in sequence. In addition, in other embodiments of the present invention, the driving voltage input bar and the first shorting bar may also be located above, to the left or to the right of the display area.

In this embodiment, the first shorting bar 410 includes a middle part 412, a first edge part 411, and a second edge part 413. The first edge part 411 is located on the left side of the middle part 412, and the second edge part 413 Located on the right side of the middle part 412, the middle part 412 is located between the two driving voltage input rods 420, that is, the two driving voltage input rods 420 are located at both ends of the middle part 412, and the first edge part 411 is to the left The first shorting bar 410 area outside the driving voltage input bar 420, and the second edge portion 413 is the first shorting bar 410 area outside the right driving voltage input bar 420. In this embodiment, the first edge portion 411, the middle portion 412, and the second edge portion 413 each occupy 1/3 of the length of the first shorting bar 410. Of course, the present invention is not limited to this. In other embodiments of the present invention, In this case, the lengths of the first edge portion, the middle portion, and the second edge portion can also be set according to actual requirements.

In this embodiment, the position where the first shorting bar 410 is electrically connected to the driving voltage input bar 420 protrudes away from the display area 300 relative to other positions of the first shorting bar 410. Here, the first shorting bar 410 is connected to the driving voltage input bar 420. The electrical connection position of the voltage input bar 420 protrudes downwards, so that the shortest distance between the position adjacent to the first shorting bar 410 and the driving voltage input bar 420 and the display area 300 is greater than the shortest distance between the other positions of the first shorting bar 410 and the display area 300 The length of the transmission line 310 in the non-display area 400 where the position where the first shorting bar 410 is electrically connected to the driving voltage input bar 420 is adjacent to the transmission line 310 is far away from the position where the first shorting bar 410 and the driving voltage input bar 420 are electrically connected. The length in the display area 400 is longer. Because the transmission line 310 itself is also wired, the driving voltage on the transmission line 310 adjacent to the position where the first shorting bar 410 is electrically connected to the driving voltage input bar 420 will be relatively far away from the first shorting bar 410 due to the line resistance. The driving voltage on the transmission line 310 at the position where the shorting bar 410 is electrically connected to the driving voltage input bar 420 will drop more, and because the first shorting bar 410 itself has line resistance, the distance between the first shorting bar 410 and the driving voltage The voltage drop of the input rod 420 at a far distance is greater. Therefore, by arranging transmission lines 310 of different lengths in the non-display area 400, the difference in driving voltage at different positions on the first shorting rod 410 can be offset, thereby Finally, the driving voltages transmitted to the OLEDs in the display area 300 through the transmission line 310 are relatively consistent, so that the OLED light emission is relatively consistent, and the light emission of the AMOLED display panel is relatively uniform.

In this embodiment, the position where the first shorting bar 410 is electrically connected to the driving voltage input bar 420 and the adjacent portion thereof protrude downward in a broken line. However, the present invention is not limited to this. In other embodiments of the present invention, the position where the first shorting bar is electrically connected to the driving voltage input bar and its adjacent parts may also protrude downward in an arc shape. The shape can be approximated as a circular arc.

In this embodiment, since the middle portion 412 is located between the two driving voltage input rods 420, the minimum value of the driving voltage on the middle portion 412 of the first shorting bar 410 may be relative to the first edge portion 411 and the second edge portion. The minimum value of the driving voltage on 413 should be larger. In order to offset the inconsistency of the driving voltage of the middle part 412 with the first edge part 411 and the second edge part 413, the shortest distance between the middle part 412 of the first shorting bar 410 and the display area 300 It is greater than the shortest distance between the first edge portion 411 and the second edge portion 413 and the display area 300. In addition, in other embodiments of the present invention, referring to FIG. 2b, the shortest distance between the middle portion 412 of the first shorting bar 410 and the display area 300 may also be equal to the shortest distance between the first edge portion 411 and the second edge portion 412 and the display area. distance.

In addition, please continue to refer to FIG. 2a. In order to make the driving voltage on the transmission line 310 in the display area 300 more consistent, in this embodiment, the AMOLED display panel further includes a second shorting bar 430. A shorting bar 410 is electrically connected to both ends of the transmission line 310, that is, a plurality of transmission lines 310 extend upward to be electrically connected to the second shorting bar 430, that is, the second shorting bar 430 shorts the upper ends of the plurality of transmission lines 310 together, This arrangement is further conducive to the consistency of the driving voltage on the transmission line 310. In this embodiment, the second shorting bar 430 has a straight and long strip shape.

In addition, an embodiment of the present invention also provides an AMOLED display, which includes the above-mentioned AMOLED display panel.

Second embodiment

FIG. 3 is a schematic diagram of an AMOLED display panel according to a second embodiment of the present invention. The schematic diagram of FIG. 3 is similar to the schematic diagram of FIG. 2a. Therefore, the same component symbols represent the same components and will not be repeated here. The main difference between this embodiment and the first embodiment is the portion of the transmission line 510 in the non-display area 400.

Referring to FIGS. 3 and 4, in this embodiment, the portions of the plurality of transmission lines 510 adjacent to the driving voltage input rod 420 between the display area 300 and the first shorting bar 410 adopt curved lines, that is, adjacent to all the transmission lines. The portion of the multiple transmission lines 510 of the input rod 420 located in the non-display area 400 adopts curved lines, and the curved lines can be in the shape of a serpentine, wavy, square wave, sine wave, etc., and this arrangement can increase the proximity of the input The length of the portion of the plurality of transmission lines 510 of the rod 420 located in the non-display area 400 can thereby reduce the distance between the plurality of transmission lines 510 adjacent to the input rod 420 in the non-display area 400, thereby reducing the non-display area 400 The width is conducive to the narrow bezel design of AMOLED display panels.

In this embodiment, the portion of the transmission line 510 connected to the first edge portion 411 of the first shorting bar 410 in the non-display area 400 adopts a curved line, and is connected to the second edge portion 413 of the first shorting bar 410. The part of the transmission line 510 in the non-display area 400 adopts a curved line, and the part of the transmission line 510 connected to both sides of the middle part 412 of the first shorting bar 410 in the non-display area 400 adopts a curved line. The portion of the transmission line 510 connected to the middle of the middle portion 412 of the shorting bar 410 in the non-display area 400 adopts a vertical wiring. However, the present invention is not limited to this. In other embodiments of the present invention, the transmission line connected to the first shorting bar adopts a curved line in the non-display area.

Third embodiment

FIG. 5 is a schematic diagram of an AMOLED display panel according to a third embodiment of the present invention. The schematic diagram of FIG. 5 is similar to the schematic diagram of FIG. 2a. Therefore, the same component symbols represent the same components and will not be repeated here. The main difference between this embodiment and the first embodiment is the position where the two driving voltage input bars 620 and the first shorting bar 610 are electrically connected.

Referring to FIG. 5, in this embodiment, two driving voltage input bars 620 are electrically connected to both ends of the first shorting bar 610, and both ends of the first shorting bar 610 protrude away from the display area. In this embodiment In this case, the first shorting bar 610 is arched toward the display area, so that the minimum distance between the two ends of the first shorting bar 610 and the display area 300 is greater than the minimum distance between the middle position of the first shorting bar 610 and the display area 300. distance.

In this embodiment, the transmission line 510 electrically connected to the first shorting bar 610 is vertical in the non-display area 400. However, the present invention is not limited to this. In other embodiments of the present invention, referring to FIG. 6, the transmission line 710 electrically connected to the first shorting bar 610 adopts curved lines in the non-display area 400.

It should be noted that the various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same and similar parts between the various embodiments, refer to each other. can. For the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant part can be referred to the description of the method embodiment.

The above-disclosed are only preferred embodiments of the present invention. Of course, the scope of rights of the present invention cannot be limited by this. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims

An AMOLED display panel, which is characterized by comprising:

The display area is provided with multiple transmission lines, and the multiple transmission lines are used to transmit the driving voltage for driving the OLED to emit light;

In the non-display area, at least one driving voltage input bar and a first shorting bar are arranged in the non-display area, the first shorting bar is electrically connected to the driving voltage input bar, and a plurality of the transmission lines extend to the non-display area Are electrically connected to different positions of the first shorting bar;

Wherein, the position where the first shorting bar is electrically connected to the driving voltage input bar protrudes away from the display area relative to other positions of the first shorting bar.
3. The AMOLED display panel of claim 1, wherein the position where the first shorting bar is electrically connected to the driving voltage input bar and its adjacent portion are arc-shaped or broken-line-shaped.
The AMOLED display panel of claim 1, wherein the number of the driving voltage input bars is two, and the first shorting bar includes a middle part, a first edge part and a second edge part, and the middle Part is located between the two driving voltage input rods, the first edge part is the first shorting bar area outside one of the driving voltage input rods, and the second edge part is the first shorting bar area outside the other driving voltage input rod. A shorting bar area.
3. The AMOLED display panel of claim 3, wherein the shortest distance between the middle portion and the display area is greater than or equal to the shortest distance between the first edge portion and the second edge portion and the display area.
The AMOLED display panel of claim 1, wherein the number of the driving voltage input rods is two, and the two driving voltage input rods are electrically connected to both ends of the first shorting rod, respectively.
The AMOLED display panel of claim 5, wherein the first shorting bar is generally arched, and the minimum distance between the two ends of the first shorting bar and the display area is greater than the distance between the two ends of the first shorting bar and the display area. The shortest distance.
8. The AMOLED display panel according to any one of claims 1 to 6, wherein the plurality of transmission lines adjacent to the driving voltage input bar are arranged in a curved line at the part between the display area and the first shorting bar.
8. The AMOLED display panel according to any one of claims 1 to 6, wherein all the transmission lines between the display area and the first shorting bar adopt curved lines.
The AMOLED display panel according to any one of claims 1-6, wherein the non-display area is further provided with a second shorting bar, and the first shorting bar and the second shorting bar are respectively connected to both ends of the transmission line. Electric connection.
An AMOLED display, characterized by comprising the AMOLED display panel according to any one of claims 1-9.