FIELD OF INVENTION

The present invention relates to a display panel, and more particularly to a bendable and narrow border display panel.

BACKGROUND OF INVENTION

Currently, the display panel industry has developed, for example, active-matrix organic light-emitting diodes (AMOLEDs), which can be self-luminous, and when an electric current passes through the organic material, the organic material emits light, so that AMOLED is not required to additionally provide a backlight module. Furthermore, the AMOLED display panel can use a very thin coating organic material and a very thin glass substrate, so the display panel can be thinner than conventional displays, and has advantages such as wide viewing angles, high color saturation, high contrast, low driving voltage, low power consumption, fast response times, light weight, simple configuration, and low cost.

China utility model patent No. 205140985U discloses a flexible AMOLED display panel structure comprising a first substrate and a second substrate, the second substrate being a protective cover plate, and the first substrate comprising a display region and a non-display region, wherein the non-display region is disposed around the display region and is bilaterally symmetric. Each of contacts of a controller connecting interface disposed on the non-display region is connected to each of data traces within the display region by a metal routing structure, and the metal routing structure includes a bending routing region and a fanout routing region, each metal trace in a bending routing region and each metal trace in the fanout routing region is connected to each other one by one. By changing the metal routing structure of the flexible AMOLED display panel, resistance of the metal traces in the bending routing region and resistance of the metal traces in the fanout routing region are more uniform, and the display region in the entire display panel is proportionally increased, therefore increasing area of the display region.

Please refer toFIG. 1, which shows a display panel100for a conventional smartphone1. The smartphone1includes a display panel100. The display panel100includes a display region101and a non-display region102, the non-display region102is distributed around the display region101and is bilaterally symmetric. A component disposing region103is disposed under the display region101and configured for disposing a plurality of traces (not shown) and at least one control chip105. Next, please refer toFIG. 2, where a fanout routing region104is disposed within the component disposing region103, and the fanout routing region104has a plurality of traces configured for connecting the display region101and the control chip105, thereby controlling the display region101by the control chip105. Furthermore, a high-potential power trace106is disposed within the component disposing region103and under the display region101to provide a high-potential voltage to the display region101. A low-potential power trace107surrounds the display region101and extends downwardly outside the high-potential power trace106and is retracted below the high-potential power trace106. Then, the low-potential power trace107is parallel to the high-potential power trace106, and extends downwardly to connect the control chip105.

Technical Problem of Background

However, the display panel100still has the following problems in actual use. For example, the bottom border of the existing smart phone1tends to have a non-display region, so that the display panel100has a reserved space within the underside of the non-display region102for disposing the plurality of traces and the control chip105, so the existing smart phone cannot realize narrow border design.

As mentioned above in the background, the non-display region is bent backwards. However, if the non-display region is bent backwards, the bending region requires to be placed in a region where the metal is less laid (for example, if the low-potential power trace and the high-potential power trace parallel to each other by upper and lower columns, the bending region needs to be placed in a region where the low-potential power trace and the high-potential power trace keep off. For example, as described above in the background, the bending region is placed between the low-potential power trace (and the high-potential power trace) and the control chip, as shown by the line BL), in order to avoid crack of the metal traces or delamination between the metal traces and non-metallic layers which is adjacent to the metal traces. This kind of design still has a little bit of border (for placing the low-potential power trace and the high-potential power trace), and it limits achievement of a true narrow border design. Therefore, if a narrowest border design is to be realized, the bending region must be placed close to the high-potential power trace, but bending may cause the delamination at the high-potential power trace, and results problems of product reliability. More seriously, the traces placed within the bending region may break, and results product failure.

Therefore, it is necessary to provide a display panel to solve the problems existing in the conventional art, to allow that the bottom border of the display panel can realize a true narrow border design, and to avoid the narrow border design that may cause product reliability problems or product failure due to trace breakage.

SUMMARY OF INVENTION

In view of above mentioned, the present invention is to provide a display panel to solve the problem that a length of a bottom border of a display panel is too long in the conventional art, and cannot satisfy the full-screen display design.

The main object of the present invention is to provide a display panel which can greatly shorten a length of a bottom border of the display panel, so the length of the bottom border is shortened to 0.8 mm to 2.0 mm, thereby achieving the full-screen display design.

Another object of the present invention is to provide a display panel that can increase the flexibility of the bending region by disposing connecting traces within the bending region, and greatly shorten the length of the bottom border of the display panel to realize the full-screen display design.

In order to achieve the foregoing objects of the present invention, an embodiment of the present invention provides a display panel, including: an active region and a non-display region, the non-display region disposed around the active region and extending to form a bending region, a fanout routing region, and a component disposing region; the component disposing region having a plurality of component connecting pads; wherein a first section of a first power trace is disposed within the non-display region around the active region, the first section of the first power trace is connected to a second section of the first power trace disposed within the component disposing region, and the second section of the first power trace is connected to the plurality of component connecting pads; and a first section of a second power trace is disposed adjacent to the active region and disposed between the active region and the bending region, the first section of the second power trace is connected to a second section of the second power trace disposed within the component disposing region by at least a set of second connecting sub-traces disposed within the bending region, and the second portion of the second power trace is connected to the plurality of component connecting pads.

Furthermore, another embodiment of the present invention provides another display panel, including: an active region and a non-display region, the non-display region disposed around the active region and extending to form a bending region and a component disposing region, wherein the bending region defines a left section, a middle section, and a right section, the component disposing region having a plurality of component connecting pads; and a plurality of data traces passing through the bending region and connected with the active region and the plurality of component connecting pads; wherein a first section of a power trace is disposed adjacent to the active region, the first section of the power trace is connected to a second section of the power trace disposed within the component disposing region by three sets of connecting sub-traces passing through the left section, the middle section and the right section, and the second section of the power trace is connected to the plurality of component connecting pads.

In addition, another embodiment of the present invention provides a display panel, including: an active region and a non-display region, the non-display region disposed around the active region and extending to form a bending region and a component disposing region; wherein a first section of a power trace is disposed adjacent to the active region, the first section of the power trace is separately connected to a second section of the power trace disposed within the component disposing region by at least one set of connecting sub-traces passing through the bending region.

In an embodiment of the invention, the first section of the second power trace and the second section of the second power trace are parallel to each other, and a width of the first section of the second power trace and a width of the second section of the second power trace are greater than a width of the second connecting sub-trace.

In an embodiment of the invention, the first section of the power trace and the second section of the power trace are parallel to each other, and a width of the first section of the power trace is less than a width of the second section of the power trace and greater than a width of the plurality of connecting sub-traces.

In an embodiment of the invention, the first section of the second power trace and the second section of the second power trace are parallel to each other, and a width of the first section of the second power trace is less than a width of the second section of the second power trace, and is greater than a width of the second connecting sub-trace.

In an embodiment of the invention, the first section of the power trace and the second section of the power trace are parallel to each other, and a width of the first section of the power trace is less than a width of the second section of the power trace, and is greater than a width of the plurality of connecting sub-traces.

In an embodiment of the invention, the first section of the second power trace is separately connected to the second section of the second power trace disposed within the component disposing region by two sets of second connecting sub-traces passing through two sections of the bending region.

In an embodiment of the invention, the first section of the power trace is separately connected to the second section of the power trace disposed within the component disposing region by two sets of the plurality of connecting sub-traces passing through two sections of the bending region.

In an embodiment of the present invention, the first section of the second power trace is separately connected to the second section of the second power trace disposed within the component disposing region by three sets of the plurality of connecting sub-traces passing through the left section, the middle section and the right section of the bending region.

In an embodiment of the present invention, the first section of the power trace is separately connected to the second section of the power trace disposed within the component disposing region by three sets of the plurality of connecting sub-traces passing through the left section, the middle section and the right section of the bending region.

In an embodiment of the invention, a width of the first section of the second power trace is not greater than 150 microns.

In one embodiment of the invention, a width of the first section of the power trace is not greater than 150 microns.

In one embodiment of the invention, a width of the connecting sub-traces is not greater than 20 microns.

In one embodiment of the invention, a width of the second section of the power trace is not greater than 250 microns.

In an embodiment of the invention, the first section of the first power trace is separately connected to the second section of the first power trace disposed within the component disposing region by a plurality of first connecting sub-traces disposed within the bending region.

In an embodiment of the present invention, a width of the first section of the first power trace and a width of the second section of the first power trace are greater than a width of the first connecting sub-trace.

In an embodiment of the invention, a width of the first connecting sub-trace is not greater than 20 microns.

In an embodiment of the present invention, the fanout routing region further includes a plurality of data traces, and wherein a material of the first connecting sub-traces and the second connecting sub-traces located within the bending region and a material of the plurality of data traces is selected from a group consisting of titanium-aluminum-titanium, molybdenum, copper, and silver nanowire.

beneficial effect:

Compared with the conventional art, the display panel of the present invention is not only greatly shorten a length of a bottom border of the display panel, but also realize the full-screen display design, and can also have a smaller smartphone size under the same display size.

