CN108762549B

CN108762549B - Display panel, touch display screen and touch display equipment

Info

Publication number: CN108762549B
Application number: CN201810458156.2A
Authority: CN
Inventors: 张金方; 黄秀颀; 王欢; 张露; 韩珍珍; 胡思明
Original assignee: Kunshan Govisionox Optoelectronics Co Ltd
Current assignee: Kunshan Govisionox Optoelectronics Co Ltd
Priority date: 2018-05-14
Filing date: 2018-05-14
Publication date: 2020-10-23
Anticipated expiration: 2038-05-14
Also published as: CN108762549A

Abstract

The invention relates to a display panel, a touch display screen and a touch display device. The power lines in the special-shaped area of the non-display area are removed, and the power lines are only arranged in the regular area, so that the wiring complexity of the special-shaped area can be reduced, the occupied space of the power lines is reduced, the size of the frame of the arc-shaped area is reduced, and the peripheral wiring and the setting of the narrow frame are facilitated.

Description

Display panel, touch display screen and touch display equipment

Technical Field

The invention relates to the technical field of display, in particular to a display panel, a touch display screen and touch display equipment.

Background

With the continuous development of display technologies, the application of touch display screens is more and more extensive, and the variety of special-shaped touch display screens is more and more.

When a conventional technology is used to manufacture a special-shaped touch display screen, wiring needs to be performed on the periphery (non-display area) of a screen display area, and the non-display area includes a regular area formed by straight edges and a special-shaped area formed by non-straight edges. When the screen comprises a grooved structure, the profiled regions also comprise grooved regions. However, since the wiring of the abnormal region of the non-display region is complicated, the abnormal region requires a large wiring frame, and thus, the wiring occupies a large space, which is not favorable for narrowing the edge.

Disclosure of Invention

In view of the above, it is desirable to provide a display panel, a touch display screen and a touch display device that reduce the wiring complexity.

A display panel having a display area and a non-display area surrounding the display area, the non-display area having a regular area and an irregular area, the regular area including a power supply line, the irregular area not including a power supply line.

In one embodiment, the shaped area is an area of the non-display area adjacent to a non-right angle area of the display area.

In one embodiment, the shaped area is an area of the non-display area that contains a grooved area.

In one embodiment, the shaped area comprises an area of the non-display area adjacent to a non-right angle area of the display area and an area of the non-display area containing a slotted area.

In one embodiment, the area of the non-display area adjacent to the non-right angle area of the display area is an area having an arc-shaped edge.

A touch display screen comprises any one of the display panel and the touch panel.

A touch display device comprises the touch display screen.

The display panel is provided with a display area and a non-display area surrounding the display area, the non-display area is provided with a regular area and an irregular area, the regular area comprises a power line, and the irregular area does not comprise the power line. The power lines in the special-shaped area of the non-display area are removed, and the power lines are only arranged in the regular area, so that the wiring complexity of the special-shaped area can be reduced, the occupied space of the power lines is reduced, the size of the frame of the arc-shaped area is reduced, and the peripheral wiring and the setting of the narrow frame are facilitated.

Drawings

FIG. 1 is a schematic diagram of a display panel according to an embodiment;

FIG. 2 is a schematic diagram of a display panel according to another embodiment;

FIG. 3 is a schematic diagram of a display panel according to another embodiment;

FIG. 4 is a schematic diagram illustrating the space within the display area of the display panel in one embodiment;

FIG. 5 is a schematic diagram of a display panel according to another embodiment.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In one embodiment, as shown in FIG. 1, a display panel 10 is provided, the display panel 10 having a display area 100 and a non-display area 200 surrounding the display area 100. The area shape of the display area 100 is not unique, and can be flexibly set according to the actual product requirement of the display panel 10, and in this embodiment, the area shape of the display area 100 is a non-right-angled (e.g., rounded) rectangle. The non-display area 200 has a regular area 220 and an irregular area 240, the regular area 220 including the power line 300, and the irregular area 240 not including the power line 300. The power supply line 300 disposed in the regular region 220 is used to transfer a cathode potential. The material of the power line 300 is not exclusive, and the power line 300 may be a metal power line, such as ELVSS.

Referring to fig. 1, when the display panel 10 is not subjected to the grooving process, the regular region 220 is adjacent to the irregular region 240, and when the region shape of the display region 100 is a rounded rectangle, the irregular region 240 is a region adjacent to a top corner (non-right angle) region of the display region 100 in the non-display region 200, that is, the irregular region 240 is a region having an arc-shaped edge adjacent to a non-right angle region of the display region 100 in the non-display region, and the regular region 220 is a straight-side region adjacent to the display region 100 in the non-display region 200.

Further, when the area shape of the display area 100 is a rounded rectangle and the display panel 10 is not slotted, the regular area 220 includes the power line 300, the irregular area 240 does not include the power line 300, the distribution area of the power line 300 in the regular area 220 is not unique, and the power line 300 can be specifically set according to the product specification and the driving effect requirement, in one embodiment, all the straight edge areas in the regular area 220 can be provided with the power line 300, so as to improve the working performance of the power line 300; in another embodiment, the power line 300 is disposed in any one of the straight edge regions of the regular region 220 and the straight edge region opposite to the straight edge region, that is, the power line 300 is disposed in one set of opposite straight edge regions of the regular region 220, and the power line 300 is not disposed in the other set of opposite straight edge regions of the regular region 220, so that the wiring space can be reduced on the basis of ensuring the working performance of the power line 300; in another embodiment, the power line 300 is disposed in any one of the straight edge regions of the regular region 220, the power line 300 is not disposed in the other straight edge regions, and the power line 300 is disposed only in one straight edge region of the regular region 220, so that the minimum wiring space can be ensured, and the arrangement of a narrow frame is facilitated. In this embodiment, as shown in fig. 1, the power line 300 is only disposed in a straight edge region of the regular region 220, and the power line 300 is not disposed in the remaining straight edge region of the regular region 220, so as to ensure the minimum wiring space and realize the narrower frame.

In the embodiment, by removing the power line 300 in the special-shaped area 240 and only arranging the power line in the regular area 220, the wiring complexity of the special-shaped area can be reduced, the occupied space can be reduced, the size of the frame of the arc-shaped area can be reduced, and the setting of peripheral wiring and a narrow frame can be facilitated.

In one embodiment, as shown in fig. 2, when the display panel 10 includes a slotted region, it is equivalent to slotting the original straight-side region of the display panel, and in this case, the non-display region 200 includes a first special-shaped region 242, a second special-shaped region 244 and a regular region 220, the first special-shaped region 242 is a region (in fig. 2, a region with an arc-shaped edge) of the non-display region 200 adjacent to the non-right-angle region of the display region 100, and the second special-shaped region 244 is a region of the straight-side region of the non-display region 200 adjacent to the display region 100 that includes a slotted region.

Further, when the area shape of the display area 100 is a non-right-angled (e.g. rounded) rectangle and the display panel 10 includes a slotted area, as shown in fig. 2, the non-display area 200 includes a first special-shaped area 242, a second special-shaped area 244 and a regular area 220, the arrangement of the power line 300 can be set according to the size of the slotted area, in one embodiment, the power line 300 is arranged in the regular area 220 and the second special-shaped area 244, and the power line 300 is not arranged in the first special-shaped area 242, so as to improve the working performance of the power line 300; in another embodiment, the power line 300 is disposed on the opposite straight-side region in the regular region 220, and the power line 300 is not disposed on the remaining straight-side region, the first special-shaped region 242 and the second special-shaped region 244 in the regular region 220, so that the wiring space can be reduced on the basis of ensuring the working performance of the power line 300; in another embodiment, the power line 300 is disposed in any one of the straight regions in the regular region 220, and the power line 300 is not disposed in the remaining straight regions, the first irregular region 242 and the second irregular region 244 in the regular region 220, so as to ensure the minimum wiring space and facilitate the disposition of a narrow bezel. Considering that the second irregular area 244 includes a grooved area, the grooved area needs to be provided with other devices, and in order to reduce the wiring space, the second irregular area 244 is not provided with the power line 300, in this embodiment, as shown in fig. 2, any one of the straight edge areas in the regular area 220 is provided with the power line 300, and the remaining straight edge areas in the regular area 200, the first irregular area 242, and the second irregular area 244 are not provided with the power line 300, so as to ensure the minimum wiring space and achieve the setting of a narrower frame.

In one embodiment, as shown in fig. 3, the display panel 10 further includes a pixel row 400, and the pixel row 400 is disposed in the display area 100. The pixel row 400 is formed of pixel units 420, and the pixel units 420 are disposed in the display area 100. Specifically, the pixel units 420 are arranged in the display area 100 in an array, a plurality of pixel units 420 arranged along the width direction form a pixel row 400, and the display area 100 includes a plurality of pixel rows 400.

The specific type of display panel and the specific structure of the pixel unit 420 are not particularly limited. In one embodiment, the display panel is an OLED (Organic Light-Emitting Diode) display panel. For the OLED, the driving method can be divided into an AMOLED (Active Matrix Organic Light-Emitting Diode) and a PMOLED (Passive Matrix Organic Light-Emitting Diode). AMOLED is a display technology in which OLED pixels are deposited or integrated on a TFT (Thin Film Transistor) array, and the current flowing into each OLED pixel is controlled by the TFT array, so as to determine the intensity of light at each pixel point. The AMOLED uses the TFT array to control OLED pixels, and the pixels can still keep the original brightness after scanning by using capacitance storage signals. Only the scanned pixels will be illuminated by the PMOLED.

Further, in one embodiment, the display panel uses AMOLED display technology. As shown in fig. 4, each pixel unit 420 includes an anode layer 422, an organic light emitting layer 424 and a TFT pixel circuit 426 disposed on a substrate, where the anode layer 422 is an ITO (Indium Tin Oxide) anode layer, and the Indium Tin Oxide is a nano Indium Tin Oxide, which has good conductivity and transparency; the organic light emitting layer 424 is an organic EL (Electro Luminescence) layer, which has higher perceived brightness and lower power consumption due to high contrast and high color gamut, and the power consumption of the organic EL layer substantially varies only with the brightness of a displayed image; the TFT pixel circuit 426 includes a gate electrode for receiving a pixel driving signal, a source electrode, and a drain electrode.

In one embodiment, referring to fig. 4, the display panel 10 further includes a cathode plate 500, the cathode plate 500 is disposed in the display area 100, the cathode plate 500 is connected to the pixel rows 400, and the cathode plate 500 is a whole planar cathode layer disposed above all the pixel rows 400. The cathode plate 500 is generally made of a semiconductor material, the cathode plate 500 is used for providing a cathode potential for the pixel unit 420, the cathode plate 500 is an evaporation cathode plate, evaporation means that the material is heated and plated on a substrate in a vacuum environment, and evaporation can be performed to form a film through evaporation at different deposition rates, different substrate temperatures and different vapor molecule incident angles, so that films with different microstructures and crystal forms can be obtained, and furthermore, the purity of the evaporation film is high, and the thickness and the composition of the film can be easily detected and controlled on line. Specifically, the cathode plate 500 is fabricated using a point source evaporation technique.

In one embodiment, as shown in fig. 5, the display panel 10 further includes an anode layer 600, the anode layer 600 is disposed in the regular area 220 and the irregular area 240, the anode layer 600 is connected to the cathode layer 500, the anode layer 600 is further connected to a power line 300, the power line 300 is connected to the cathode layer 500 through the anode layer 600, and the cathode layer 500 is connected to the pixel row 400, so that the power line 300 can provide a cathode potential for the pixel units 420 in the pixel row 400.

In one embodiment, referring to fig. 5, the display panel 10 further includes a gate driving unit 700. Specifically, the gate driving unit 700 includes a SCAN (SCAN signal) unit for generating a signal, controlling a pixel initialization and compensation process, and an EM (control signal) unit for generating a signal, controlling a pixel emission time. The pixel row 400 is connected to a gate driving unit 700, and the gate driving unit 700 is configured to output a driving signal to the pixel row 400.

Further, the anode layer 600 covers the gate driving unit 700, that is, the anode layer 600 and the gate driving unit 700 are stacked, so that the wiring space can be further reduced, the size of the wiring frame can be reduced, and a narrower frame can be realized.

In one embodiment, the gate driving unit 700 is a gate driving chip or a gate integrated driving circuit, that is, the function of the gate driving unit 700 can be implemented by the gate driving chip or by the gate integrated driving circuit, and both the above two ways can be implemented to enable the gate driving unit 700 to normally output a driving signal. When the gate driving unit 700 is a gate integrated driving circuit, the gate integrated driving circuit has a plurality of signal input terminals, generally, the gate integrated driving circuit includes a plurality of shift register units, and the gate integrated driving circuit needs to realize the functions of the gate integrated driving circuit under the control of a plurality of control signals such as clock signals, reference voltage signals VDD and VSS.

In one embodiment, as shown in fig. 5, the display panel 10 further includes a control unit 800, the control unit 800 is disposed in the non-display area 200, the control unit 800 is connected to the gate driving unit 700, and the control unit 800 is configured to control the gate driving unit 700 to output a driving signal to the pixel row 400. Specifically, the control unit 800 may further control the driving signal output by the gate driving unit 700 according to the flicker degree or the gray-scale luminance of the pixel unit 420, and the control unit 800 may further adjust the driving signal output by the gate driving unit 700 according to the target flicker degree or the target gray-scale luminance of the pixel unit 420. The control unit 800 transmits a timing signal for controlling the gate driving unit 700 to sequentially output from different output pins and a gate signal for indicating a driving signal output from different output pins of the gate driving unit 700, which may be binary data of a plurality of bits, to the gate driving unit 700.

In one embodiment, a touch display screen is provided, which includes a touch panel and a display panel, the display panel having a display area 100 and a non-display area 200 surrounding the display area 100, the non-display area 200 having a regular area 220 and an irregular area 240, the regular area 220 including a power line 300, the irregular area 240 not including the power line 300.

In the touch display screen, by removing the power line 300 in the special-shaped area 240 and only arranging the power line in the regular area 220, the wiring complexity of the special-shaped area can be reduced, the occupied space can be reduced, the size of the frame of the arc-shaped area can be reduced, and the peripheral wiring and the setting of the narrow frame can be facilitated.

In one embodiment, a touch display device is provided, the touch display device comprising a touch display screen comprising a touch panel and a display panel, the display panel having a display area 100 and a non-display area 200 surrounding the display area 100, the non-display area 200 having a regular area 220 and an irregular area 240, the regular area 220 comprising a power line 300, the irregular area 240 not comprising the power line 300.

In the touch display device, by removing the power line 300 in the special-shaped area 240 and only arranging the power line in the regular area 220, the wiring complexity of the special-shaped area can be reduced, the occupied space can be reduced, the size of the frame of the arc-shaped area can be reduced, and the peripheral wiring and the narrow frame can be favorably arranged.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A display panel characterized in that the display panel has a display area and a non-display area surrounding the display area, the non-display area having a regular area and an irregular area,

the regular region includes a power line, and the irregular region does not include a power line; the number of the regular areas is at least two, and each regular area is provided with the power line, or part of the regular areas are provided with the power lines;

the display area comprises a cathode plate and a pixel unit, the regular area and the irregular area are provided with an anode layer and a gate driving unit, and the anode layer covers the gate driving unit;

the pixel unit is connected with the grid driving unit, and the grid driving unit is used for outputting a driving signal to the pixel unit;

the pixel unit is connected with the cathode plate, the cathode plate is further connected with the anode layer, the anode layer is further connected with the power line, the power line is connected with the cathode plate through the anode layer, and the power line is used for providing cathode potential for the pixel unit.

2. The display panel according to claim 1, wherein the shaped area is an area adjacent to a non-right-angled area of the display area in the non-display area.

3. The display panel according to claim 1, wherein the shaped region is a region containing a grooved region in the non-display region.

4. The display panel of claim 1, wherein the shaped area comprises an area of the non-display area adjacent to a non-right angle area of the display area and an area of the non-display area containing a slotted area.

5. The display panel according to any one of claims 1 to 4, wherein an area adjacent to a non-right-angle area of the display area in the non-display area is an area having an arc-shaped edge.

6. A touch display screen, characterized in that the touch display screen comprises the display panel and the touch panel of any one of claims 1 to 5.

7. A touch display device, characterized in that the touch display device comprises the touch display screen of claim 6.