CN114975552B - Display panel and display device - Google Patents
Display panel and display deviceInfo
- Publication number
- CN114975552B CN114975552B CN202210583032.3A CN202210583032A CN114975552B CN 114975552 B CN114975552 B CN 114975552B CN 202210583032 A CN202210583032 A CN 202210583032A CN 114975552 B CN114975552 B CN 114975552B
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
- G09F9/335—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes being organic light emitting diodes [OLED]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Optics & Photonics (AREA)
- Geometry (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
本发明公开了一种显示面板和显示装置。该显示面板包括第一显示区、第二显示区和非显示区；第二显示区至少部分围绕第一显示区，非显示区至少部分围绕第二显示区；第一显示区设置有多个第一发光单元，非显示区设置有至少一个第一像素单元，第二显示区设置有第二像素单元和信号线，第一像素单元和至少一个第二像素单元包括第一像素；第一像素与第一发光单元连接，信号线与第二像素单元内的第一像素连接；至少一个第二像素单元包括第一虚拟像素，第一虚拟像素包括第一连接线，至少一条信号线通过第一连接线与第一像素单元内的第一像素连接。提高了第一显示区和第二显示区的显示效果一致性和显示面板的整体显示效果，避免了改变像素的驱动方式。
The present invention discloses a display panel and a display device. The display panel includes a first display area, a second display area, and a non-display area; the second display area at least partially surrounds the first display area, and the non-display area at least partially surrounds the second display area; the first display area is provided with a plurality of first light-emitting units, the non-display area is provided with at least one first pixel unit, the second display area is provided with a second pixel unit and a signal line, the first pixel unit and at least one second pixel unit include a first pixel; the first pixel is connected to the first light-emitting unit, and the signal line is connected to the first pixel in the second pixel unit; at least one second pixel unit includes a first virtual pixel, the first virtual pixel includes a first connecting line, and at least one signal line is connected to the first pixel in the first pixel unit via the first connecting line. The display effect consistency of the first display area and the second display area and the overall display effect of the display panel are improved, and the change of the pixel driving method is avoided.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display panel and a display device.
Background
Current display panels are evolving towards full-screen displays. In the full screen, a transparent display area with relatively high light transmittance is required to be arranged in the display area for placing the camera and other structures. In order to ensure the light transmittance of the transparent display area, only the light emitting device may be disposed in the transparent display area, and the pixel circuit may be disposed in the transition area around the transparent display area to provide a driving signal for the light emitting device in the transparent display area. Meanwhile, a pixel unit is arranged in the transition region and used for displaying the transition region, wherein the pixel unit comprises a light emitting device and a pixel circuit. Due to the limitation of the manufacturing process of the display panel, when the area of the transition region is unchanged, the number of pixel circuits which can be arranged in the transition region is limited. When the number of the light emitting devices in the transparent display area is relatively large, the number of the pixel circuits required by the transparent display area is relatively large, and at the moment, the plurality of the light emitting devices in the transparent display area can be connected with one pixel circuit in the transition area, so that one pixel circuit can drive the plurality of the light emitting devices to emit light, and the number of the pixel circuits required by the transparent display area is reduced. At this time, the plurality of light emitting devices of the transparent display area correspond to the same driving current, and the plurality of pixel units equivalent to the transparent display area are combined, so that the actual pixel density of the transparent display area is reduced, the display effect of the transparent display area is different from that of the conventional display area, and the overall display effect of the display panel is reduced.
Disclosure of Invention
The invention provides a display panel and a display device, which are used for improving the display effect of the display panel.
In a first aspect, an embodiment of the present invention provides a display panel, including a first display area, a second display area and a non-display area, where the second display area at least partially surrounds the first display area, and the non-display area at least partially surrounds the second display area;
The first display area is provided with a plurality of first light emitting units, the non-display area is provided with at least one first pixel unit, the second display area is provided with a second pixel unit and a signal line, the first pixel unit and the at least one second pixel unit comprise first pixels, the first pixels are connected with the first light emitting units, the signal line is connected with the first pixels in the second pixel units, the at least one second pixel unit comprises first virtual pixels, the first virtual pixels comprise first connecting lines, and the at least one signal line is connected with the first pixels in the first pixel units through the first connecting lines.
Optionally, the display panel includes a driving circuit layer;
the driving circuit layer comprises at least one conductive layer, and at least one conductive layer comprises the first connecting wire.
Optionally, the first connection line is disposed in the same layer as the signal line to which the first connection line is correspondingly connected.
Optionally, the second display area is provided with a second light emitting unit, the second pixel unit further includes a second pixel, the second pixel is connected with the second light emitting unit, and the second light emitting unit and the first light emitting unit are arranged in an array;
The signal line includes a control signal line;
In the same row of light emitting units, the second pixels corresponding to the second light emitting units are connected with the same control signal line, and the first pixels in the first pixel units corresponding to the first light emitting units are connected with the same control signal line through the first connecting line;
And/or, the signal line further comprises a data line, in the same column of light emitting units, the second pixels corresponding to the second light emitting units are connected with the same data line, and the first pixels in the first pixel units corresponding to the first light emitting units are connected with the same data line through the first connecting line.
Optionally, the display panel further comprises a first transparent conductive wire and a second transparent conductive wire, wherein the first transparent conductive wire extends along the row direction of the light emitting units, a first pixel in the second pixel unit is connected with the first light emitting units through the first transparent conductive wire, the second transparent conductive wire extends along the column direction of the light emitting units, and a first pixel in the first pixel unit is connected with the first light emitting units through the second transparent conductive wire.
Optionally, in a first direction, a first pixel in at least one second pixel unit is disposed on a side, close to the first display area, of the first virtual pixel, where the first direction is a row direction in which the first light emitting units are arranged.
Optionally, the first pixel unit further includes a second virtual pixel, and a occupation area of the second virtual pixel is equal to that of the first virtual pixel.
Optionally, the second virtual pixel is disposed in the same layer as the first pixel.
In a second aspect, an embodiment of the present invention further provides a display apparatus, including the display panel in the first aspect.
According to the technical scheme, the first pixel units are arranged in the non-display area, the first pixel units comprise first pixels, the second pixel units are arranged in the second display area, at least one second pixel unit comprises first pixels, and the first pixels are connected with the first light-emitting units and drive the first light-emitting units to emit light. The first pixels are located in the non-display area, so that the number of the first pixels in the second display area can be reduced, the space of the second display area occupied by the first pixels is reduced, the number of the first pixels can be set according to display requirements, the pixel density of the first display area is improved, the consistency of the display effects of the first display area and the second display area is improved, and the overall display effect of the display panel is improved. Meanwhile, the at least one second pixel unit comprises a first virtual pixel, and the first connecting line in the first virtual pixel can extend the signal line to the non-display area, so that the signal line can drive the first pixel in the non-display area to work normally on the basis of avoiding the change of the driving mode. Meanwhile, the different second pixel units comprise the first pixels or the first virtual pixels, so that the uniformity of the opening ratios of the different second pixel units is improved, and the display uniformity of the display panel is further improved. In addition, the signal wires can be prevented from occupying the space between the second pixel units during winding, and the arrangement of the second pixel units in the second display area is facilitated to be simplified.
Drawings
Fig. 1 is a schematic structural diagram of a display panel provided in the prior art;
Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional structure of a display panel according to an embodiment of the invention;
Fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
Fig. 7 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
Fig. 1 is a schematic structural diagram of a display panel according to the prior art. As shown in fig. 1, the display panel includes a conventional display region 101, a transition region 102, and a transparent display region 103, the transition region 102 being disposed around the transparent display region 103, the conventional display region 101 being disposed around the transition region 102. Since the conventional display area 101 surrounds the transparent display area 103, the display panel may form an off-shore type full screen display panel. The transparent display area 103 is provided with a light emitting device, a pixel unit is provided in the conventional display area 101, and a pixel unit and a pixel circuit for driving the light emitting device of the transparent display area 103 to emit light are provided in the transition area 102. The pixel unit includes a light emitting device and a pixel circuit driving the light emitting device. Because the transition region 102 needs to additionally set the pixel circuits corresponding to the light emitting devices in the transparent display region 103, when the area of the transition region 102 is unchanged, the area of the pixel circuits corresponding to the light emitting devices in the transparent display region 103 in the transition region 102 is smaller, so that the number of the pixel circuits corresponding to the light emitting devices in the transparent display region 103 which can be set in the transition region 102 is smaller.
The pixel density in the transparent display area 103 may be equal to the pixel density in the normal display area 101, that is, the number of pixels in the transparent display area 103 may be equal to the number of pixels in the normal display area 101, so that the display consistency of the transparent display area 103 and the normal display area 101 may be ensured. The pixel density of the transparent display area 103 may be the number of light emitting devices per unit area in the transparent display area 103. At this time, the number of light emitting devices in the transparent display region 103 is relatively large, and the number of pixel circuits required is relatively large, resulting in insufficient space for providing the pixel circuits and the signal lines in the transition region 102. At this time, a plurality of light emitting devices of the transparent display area 103 may be disposed to be connected to one pixel circuit of the transition area 102, so that one pixel circuit may drive the plurality of light emitting devices to emit light, thereby reducing the number of pixel circuits required for the transparent display area 103. When the plurality of light emitting devices of the transparent display area 103 correspond to one pixel circuit, the plurality of light emitting devices correspond to the same driving current, and the plurality of light emitting devices and one pixel circuit which are equivalent to the transparent display area 103 form one pixel unit, so that the actual pixel density of the transparent display area 103 is reduced, the pixel densities of the transparent display area 103 and the conventional display area 101 are different, the display effect of the transparent display area 103 is further different from the display effect of the conventional display area 101, and the overall display effect of the display panel is reduced.
Aiming at the technical problems, the embodiment of the invention provides a display panel. Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention. As shown in fig. 2, the display panel includes a first display area 110, a second display area 120 and a non-display area 130, the second display area 120 at least partially surrounds the first display area 110, the non-display area 130 at least partially surrounds the second display area 120, the first display area 110 is provided with a plurality of first light emitting units 111, the non-display area 130 is provided with at least one first pixel unit 131, the second display area 120 is provided with a second pixel unit 121 and a signal line 122, the first pixel unit 131 and the at least one second pixel unit 121 include a first pixel P1, the first pixel P1 is connected with the first light emitting unit 111, the signal line 122 is connected with the first pixel P1 in the second pixel unit 121, the at least one second pixel unit 121 includes a first virtual pixel P0, the first virtual pixel P0 includes a first connection line L1, and the at least one signal line 122 is connected with the first pixel P1 in the first pixel unit 131 through the first connection line L1.
Specifically, the display panel may be a full screen display panel. The second display area 120 may be a conventional display area of a display panel, or a main screen called a display panel. The first display area 110 may be a sub-screen of the display panel, and the first display area 110 may be in the shape of a circle, a drop, a U, etc., and the first display area 110 is exemplarily shown as a rectangle in fig. 2. In addition, the second display area 120 completely surrounds the first display area 110, so that the display panel forms an off-shore full screen display panel. Only the first light emitting unit 111 may be disposed in the first display area 110 to ensure light transmittance of the first display area 110, so that a photosensitive element may be disposed at a position opposite to the first display area 110, so as to realize under-screen sensitization of the display panel, and further realize full-screen display of the display panel. Illustratively, the photosensitive element may be a camera, and may implement under-screen imaging of the display panel. The non-display area 130 may display a bezel area of the panel.
In addition, the first light emitting unit 111 may be a light emitting device, and the first light emitting unit 111 may be an Organic LIGHT EMITTING Diode (OLED), for example. The non-display area 130 is provided with a first pixel unit 131, and the first pixel unit 131 includes a first pixel P1, where the first pixel P1 may be correspondingly connected to the first light emitting unit 111 in the first display 110, for driving the first light emitting unit 111 to emit light. A plurality of second pixel units 121 are disposed in the second display area 120, and at least two second pixel units 121 include different pixels. Illustratively, the at least one second pixel unit 121 includes a first pixel P1, and the at least one second pixel unit 121 includes a first dummy pixel P0. The first dummy pixel P0 may be disposed in the same layer as the first pixel P1. When the first pixel P1 is also disposed in the at least one second pixel unit 121, the first pixel P1 may be correspondingly connected to the first light emitting unit 111 in the first display 110, for driving the first light emitting unit 111 to emit light. The first display area 110 has a plurality of first light emitting units 111, and each first light emitting unit 111 is correspondingly connected to one first pixel P1. The first pixels P1 may include first pixels P1 in the first pixel unit 131 and first pixels P1 in the second pixel unit 121, so that each first pixel P1 may independently drive one first light emitting unit 111 to emit light, and thus the pixel density of the first display area 110 may be equal to the number of the first light emitting units 111 in a unit area. Then, a part of the first pixels P1 are disposed in the non-display area 130, so that the space occupied by the first pixels P1 in the second display area 120 can be reduced, and the number of the first pixels P1 can be set according to display requirements, which is beneficial to improving the pixel density of the first display area 110, thereby being beneficial to improving the consistency of the display effects of the first display area 110 and the second display area 120, and improving the overall display effect of the display panel. Illustratively, the number of the first light emitting units 111 may be set according to display requirements such that the pixel density of the first display area 110 is equal to the pixel density of the second display area 120. Meanwhile, the number of the first pixels P1 corresponding to the first light emitting units 111 is set in the non-display area 130 and the second display area 120 respectively, so that the number of the first pixels P1 is equal to the number of the first light emitting units 111, the consistency of the display effects of the first display area 110 and the second display area 120 is improved, and the overall display effect of the display panel is improved.
Meanwhile, a signal line 122 is disposed in the second display area 120, and the signal line 122 is used for providing an operation signal for the pixel. Illustratively, the signal line 122 may include a data line for providing a data signal for a column of pixels. The signal line 122 may further include a scan line for supplying a scan signal to a row of pixels. The signal line 122 may further include a light emission control signal line for providing a light emission control signal to a row of pixels. When the first pixel P1 is disposed in the non-display area 130, the signal line 122 may be connected to the first connection line L1 in the first virtual pixel P0 and extend to the non-display area 130 through the first connection line L1, so as to provide an operation signal for the first pixel unit 131 in the non-display area 130, thereby ensuring that the first pixel P1 in the first pixel unit 131 in the non-display area 130 operates normally on the basis of avoiding a driving mode change. Meanwhile, the different second pixel units 121 may include the first pixel P1 or the first virtual pixel P0, which is beneficial to improving the uniformity of the aperture ratio of the different second pixel units 121, and is beneficial to further improving the display uniformity of the display panel. In addition, the first connection line L1 is disposed in the first virtual display P0, so that the signal line 122 can be prevented from occupying the space between the second pixel units 121 during winding, which is beneficial to simplifying the arrangement of the second pixel units 121 in the second display area 120.
Note that, when the first light emitting unit 111 includes a plurality of light emitting devices having different light emitting colors, the first pixels P1 in the first pixel unit 131 and the second pixel unit 121 may include a plurality of light emitting devices, one for each first pixel P1. For example, the first light emitting unit 111 includes a red light emitting device, a green light emitting device, and a blue light emitting device, and the first pixels P1 in the first pixel unit 131 and the second pixel unit 121 may include three, and each of the first pixels P1 is correspondingly connected to a light emitting device of one light emitting color, respectively, for driving the light emitting device to emit light.
According to the technical scheme, the first pixel units are arranged in the non-display area, the first pixel units comprise first pixels, the second pixel units are arranged in the second display area, at least one second pixel unit comprises first pixels, and the first pixels are connected with the first light-emitting units to drive the first light-emitting units to emit light. The first pixels are located in the non-display area, so that the number of the first pixels in the second display area can be reduced, the space of the second display area occupied by the first pixels is reduced, the number of the first pixels can be set according to display requirements, the pixel density of the first display area is improved, the consistency of the display effects of the first display area and the second display area is improved, and the overall display effect of the display panel is improved. Meanwhile, the at least one second pixel unit comprises a first virtual pixel, and the first connecting line in the first virtual pixel can extend the signal line to the non-display area, so that the signal line can drive the first pixel in the non-display area to work normally on the basis of avoiding the change of the driving mode. Meanwhile, the different second pixel units comprise the first pixels or the first virtual pixels, so that the uniformity of the opening ratios of the different second pixel units is improved, and the display uniformity of the display panel is further improved. In addition, the signal wires can be prevented from occupying the space between the second pixel units during winding, and the arrangement of the second pixel units in the second display area is facilitated to be simplified.
On the basis of the technical scheme, the display panel comprises a driving circuit layer, wherein the driving circuit layer comprises at least one conductive layer, and the at least one conductive layer comprises a first connecting wire.
Specifically, fig. 3 is a schematic cross-sectional structure of a display panel according to an embodiment of the present invention. As shown in fig. 3, the display panel includes a driving circuit layer 140, and may further include a substrate 150 and a light emitting device layer (not shown in fig. 3), the driving circuit layer 140 being disposed on the substrate 150 for forming first pixels and signal lines. The driving circuit layer 140 may also be used to form a first dummy pixel for setting the first connection line, and thus the first dummy pixel may include only at least a portion of the film layers in the driving circuit layer 140. The light emitting device layer is disposed on a side of the driving circuit layer 140 away from the substrate 150, for forming a first light emitting unit. The driving circuit layer 140 includes at least one conductive layer for forming a transistor T1, a capacitor C1, and a signal line, and a first pixel is formed by interconnection of the plurality of transistors T1 and the capacitor C1. The driving circuit layer 140 is exemplarily shown in fig. 3 to include three metal layers, namely, a gate electrode forming the transistor T1, a first electrode plate of the capacitor C1, and a first metal layer M1 of the scan line and the light emission control signal line, a second metal layer M2 forming a second electrode plate of the capacitor C1, and a third metal layer M3 forming a source drain electrode and the data line of the transistor T1. At least one layer of the three layers of metal layers is used for forming a first connecting wire, so that the first connecting wire can be prevented from being additionally arranged for forming the first connecting wire, meanwhile, the first connecting wire can be synchronously formed in the process of forming the first pixel and the signal wire, the mask plate required by the display panel is reduced, the cost of the display panel is saved, and the process flow of the display panel is simplified.
It should be noted that, the driving circuit layer 140 may be used to form the first pixel and the first virtual pixel at the same time, and before the first connection line is formed by using the conductive layer at the corresponding position of the first virtual pixel, the driving circuit layer 140 may include other film layers, so that the other film layers form the same structure at the corresponding positions of the first pixel and the first virtual pixel synchronously, which is beneficial to simplifying the process flow of the display panel. For example, when the first connection line is formed using the first metal layer M1, the buffer layer and the semiconductor layer of the transistor T1 may be formed simultaneously at positions corresponding to the first pixel and the first dummy pixel before the first connection line is formed, in which case the first pixel and the first dummy pixel have the same structure. When the first connection line is formed using the second metal layer M2, the buffer layer, the semiconductor layer of the transistor T1, the first metal layer M1, and the gate insulating layer may be simultaneously formed at positions corresponding to the first pixel and the first dummy pixel before the first connection line is formed, and at this time, the first pixel and the first dummy pixel also have the same structure. When the third metal layer M3 is used to form the first connection line, the buffer layer, the semiconductor layer of the transistor T1, the first metal layer M1, the gate insulating layer, the second metal layer M2, and the interlayer insulating layer may be simultaneously formed at positions corresponding to the first pixel and the first dummy pixel before the first connection line is formed, and at this time, the first pixel and the first dummy pixel also have the same structure.
On the basis of the technical scheme, the first connecting wire and the signal wire which are correspondingly connected are arranged on the same layer.
Specifically, the signal line may include at least one of a data line, a scan line, and a light emission control signal line. When the signal line comprises a scanning line and/or a light-emitting control signal line, the first connecting line can be arranged on the first metal layer, and the first connecting line and the signal line are arranged on the same layer, so that the signal line and the first connecting line can be formed in the same process, and the process flow of the display panel is simplified. Meanwhile, the signal wire and the first connecting wire can be integrally formed, so that the signal wire and the first connecting wire are directly connected, when the signal wire extends to a non-display area through the first connecting wire, the connection process of the first connecting wire and the signal wire is simplified, and the process flow of the display panel is further simplified. Similarly, when the signal line includes the data line, the first connection line may be disposed on the third metal layer, so that the first connection line and the signal line are disposed on the same layer, and the signal line and the first connection line may be formed in the same process, thereby simplifying the process flow of the display panel. Meanwhile, the signal wire and the first connecting wire can be integrally formed, so that the signal wire and the first connecting wire are directly connected, when the signal wire extends to a non-display area through the first connecting wire, the connection process of the first connecting wire and the signal wire is simplified, and the process flow of the display panel is further simplified. Or the signal line can include scanning line, luminous control signal line and data link simultaneously, and first connecting wire has many this moment, and the first connecting wire that is connected with scanning line and luminous control signal line sets up in first metal level, and the first connecting wire that is connected with the data link sets up in the third metal level, can simplify display panel's technological process equally.
Fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the invention. As shown in fig. 4, the second display area 120 is provided with a second light emitting unit 123, the second pixel unit 121 further includes a second pixel P2, the second pixel P2 is connected to the second light emitting unit 123, the second light emitting unit 123 and the first light emitting unit 111 are arranged in an array, the signal line 122 includes a control signal line 1221, in the same row of light emitting units, the second pixel P2 corresponding to the second light emitting unit 123 is connected to the same control signal line 1221, and the first pixel P1 in the first pixel unit 131 corresponding to the first light emitting unit 111 is connected to the same control signal line 1221 through a first connection line L1.
Specifically, the second light emitting unit 123 may be disposed corresponding to the second pixel unit 121. The second pixel units 121 are further provided with second pixels P2, and at least one second pixel unit 121 includes a first pixel P1 and a second pixel P2, and at least one second pixel unit 121 includes a first virtual pixel P0 and a second pixel P2. The second pixels P2 are connected to the second light emitting units 123, so that the second pixels P2 in each second pixel unit 121 can be connected to the corresponding second light emitting unit 123, and the second light emitting unit 123 is driven to emit light, so as to realize the display of the second display area 120. In addition, the first pixels P1 and the first dummy pixels P0 are respectively disposed in the different second pixel units 121, which is beneficial to improving the uniformity of the aperture ratios of the different second pixel units 121 and further improving the display uniformity of the display panel. When the second light emitting units 123 and the first light emitting units 111 are arranged in an array, the first light emitting units 111 in the first display area 110 and the second light emitting units 123 in the second display area 120 may be arranged in an array as a whole.
Note that, when the second light emitting unit 123 includes light emitting devices of a plurality of light emitting colors, each of the second pixel units 121 may include a plurality of second pixels P2, and one second pixel P2 is correspondingly connected to one light emitting device. For example, the second light emitting unit 123 may include a red light emitting device, a green light emitting device, and a blue light emitting device, and the second pixel unit 121 may include three second pixels P2, each of the second pixels P2 being connected to a light emitting device of one light emitting color, to implement independent driving of each light emitting device.
The control signal line 1221 may include at least one of a scan line and a light emission control signal line. The light emitting units comprise a first light emitting unit 111 and a second light emitting unit 123, wherein the first light emitting unit 111 and at least part of the second light emitting unit 123 are arranged in the same row and/or column. As shown in fig. 4, the control signal line 1221 extends in the row direction X of the light emitting cells. The control signal line 1221 has a plurality of lines, each of which is provided corresponding to one line of light emitting units, for connection with the pixels corresponding to one line of light emitting units, and supplies at least one of a scan signal and a light emission control signal to the pixels corresponding to one line of light emitting units so that one line of pixels can drive one line of light emitting units to emit light. When the second display area 120 is at least partially disposed around the first display area 110, at least one row of light emitting units includes both the first light emitting unit 111 and the second light emitting unit 123. The first pixels P1 corresponding to the at least one first light emitting unit 111 are disposed in the non-display area 130, and at this time, the first pixels P1 disposed in the non-display area 130 are connected to the control signal lines 1221 corresponding to the light emitting units in the same row through the first connection line L1, so as to ensure that the driving manner of the light emitting units in the same row is unchanged.
Illustratively, as shown in fig. 4, a plurality of rows and columns of first light emitting units 111 are disposed in the first display area 110 such that the plurality of rows of light emitting units include the first light emitting unit 111 and the second light emitting unit 123. In the first row of the light emitting units, the second pixels P2 corresponding to the second light emitting units 123 are disposed in the same row as the second light emitting units 123, the first pixels P1 corresponding to the first light emitting units 111 in some columns (e.g., the fifth column, the sixth column, and the seventh column in the first display area 110) of the first light emitting units 111 are disposed in the non-display area 130, and the first pixels P1 corresponding to the first light emitting units 111 in some columns (e.g., the first column to the fourth column in the first display area 110) are disposed in the same row as the second light emitting units 123. When the control signal line 1221 corresponding to the first row of light emitting units of the plurality of rows of light emitting units provides the scanning signal and/or the light emitting control signal for the pixel corresponding to the row of light emitting units, the control signal line 1221 is directly connected to the second pixel P2 and the first pixel P1 corresponding to the first column of the first light emitting unit 111, and then is connected to the first pixel P1 corresponding to a part of columns (for example, the fifth column, the sixth column and the seventh column in the first display area 110) through the first connection line L1, so that one control signal line 1221 can provide the scanning signal and/or the light emitting control signal for the pixel corresponding to the row of light emitting units, and the driving mode of the same row of light emitting units is ensured to be unchanged.
The non-display area 130 may be provided with a plurality of rows of first pixel units 131, and a row of first pixel units 131 in the non-display area 130 may be connected to the same control signal line 1221, where the first light emitting units 111 corresponding to the first pixel units 131 in the row are arranged in the same row. In other embodiments, a row of the first pixel units 131 in the non-display area 130 may be further connected to a different control signal line 1221, where the first light emitting units 111 corresponding to the row of the first pixel units 131 are disposed in a different row. Fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention. As shown in fig. 5, the control signal lines 1221 corresponding to the first row of light emitting units and the control signal lines 1221 corresponding to the second row of light emitting units in the first display area 110 are connected to the same row of first pixel units 131 through different first connection lines L1, at this time, the first pixels P1 connected to the control signal lines 1221 corresponding to the first row of light emitting units in the first display area 110 are connected to the first row of first light emitting units 111 in the first display area 110, and the first pixels P1 connected to the control signal lines 1221 corresponding to the second row of light emitting units in the first display area 110 are connected to the second row of first light emitting units 111 in the first display area 110, so as to realize that the pixels corresponding to the light emitting units in the same row provide scanning signals or light emission control signals through the same control signal lines 1221.
It should be noted that, in other embodiments, the same control signal line 1221 may be further connected to the first pixel units 131 of different rows, and the first light emitting units 111 corresponding to the first pixel units 131 of different rows are arranged in the same row, so that only the pixels corresponding to the light emitting units of the same row need to be ensured to provide the scanning signal or the light emitting control signal through the same control signal line 1221, which is not limited herein.
In other embodiments, the signal lines may also be data lines. Fig. 6 is a schematic structural diagram of another display panel according to an embodiment of the invention. As shown in fig. 6, the second display area 120 is provided with a second light emitting unit 123, the second pixel unit 121 further includes a second pixel P2, the second pixel P2 is connected to the second light emitting unit 123, the second light emitting unit 123 and the first light emitting unit 111 are arranged in an array, the signal line 122 includes a data line 1222, in the same column of light emitting units, the second pixel P2 corresponding to the second light emitting unit 123 is connected to the same data line 1222, and the first pixel P1 in the first pixel unit 131 corresponding to the first light emitting unit 111 is connected to the same data line 1222 through a first connection line L1.
In particular, the signal line 122 may also be a data line 1222, the data line 1222 extending along the column direction Y of the light emitting cells. The data lines 1222 may have a plurality of data lines, each of which is disposed corresponding to a column of light emitting units, for connecting with pixels corresponding to a column of light emitting units, and providing data signals to the pixels corresponding to a column of light emitting units, so that a column of pixels can drive a column of light emitting units to emit light. When the second display area 120 is at least partially disposed around the first display area 110, at least one column of light emitting units includes both the first light emitting unit 111 and the second light emitting unit 123. The first pixels P1 corresponding to the at least one first light emitting unit 111 are disposed in the non-display area 130, and at this time, the first pixels P1 disposed in the non-display area 130 are connected to the data lines 1222 corresponding to the same row of light emitting units through the first connection lines L1, so as to ensure that the driving mode of the same row of light emitting units is unchanged.
Illustratively, as shown in fig. 6, a plurality of rows and columns of first light emitting units 111 are disposed within the first display area 110 such that the plurality of columns of light emitting units include the first light emitting unit 111 and the second light emitting unit 123. In some columns of light emitting units (e.g., the first column to the fourth column in the first display area 110) of the multiple columns of light emitting unit units, the first pixel P1 corresponding to the first light emitting unit 111 is disposed in the second display area 120, and is disposed in a different column from the corresponding column of light emitting unit, e.g., disposed on one side of the first display area 110 along the row direction X. In some columns of light emitting units (for example, the fifth column, the sixth column, and the seventh column in the first display area 110) of the multiple columns of light emitting unit units, the second pixels P2 corresponding to the second light emitting units 123 are disposed in different columns from the second light emitting units 123, and the first pixels P1 corresponding to the first light emitting units 111 in some columns of light emitting units are disposed in the non-display area 130 and are disposed in different columns from the corresponding second light emitting units 123. The second display area 120 is at least partially disposed around the first display area 110, so that the data lines 1222 corresponding to part of the light emitting units in the plurality of columns of light emitting units are disposed around the first display area 110, so that one data line 1222 provides data signals for pixels corresponding to part of the light emitting units in the plurality of columns of light emitting units (for example, the first column to the fourth column in the first display area 110), and the driving mode of the light emitting units in the same column is ensured to be unchanged. The first display area 110 may further divide the data lines 1222 corresponding to part of the light emitting units in the columns (for example, the fifth, sixth and seventh columns in the first display area 110) into two parts along the column direction Y, wherein the first part is used for being connected with the second pixels P2 on one side of the first display area 110 along the column direction Y, and the second part is used for being connected with the second pixels P2 on the other side of the first display area 110 along the column direction Y and/or the first pixels P1 in the non-display area 130 through the first connection line L1, so that one data line 1222 can provide data signals for the pixels corresponding to one column of light emitting units, and the driving mode of the same column of light emitting units is ensured to be unchanged. When the data line 1222 is connected to the second pixel P2 on the other side of the first display area 110 along the column direction Y and the first pixel P1 in the non-display area 130 through the first connection line L1, the data line 1222 can be prevented from being wound around the first display area 110 along the row direction X, which is beneficial to improving the layout and display effect of the display panel.
Fig. 7 is a schematic structural diagram of another display panel according to an embodiment of the invention. As shown in fig. 7, the signal lines may include a control signal line 1221 and a data line 1222, when a row of light emitting units includes a first light emitting unit 111 and a second light emitting unit 123, a column of light emitting units includes a first light emitting unit 111 and a second light emitting unit 123, and the data line 1222 corresponding to a column of light emitting units is divided into two parts by the first display area 110, the control signal line 1221 may be connected to the first pixel P1 in the non-display area 130 through a first connection line L1, and the data line 1222 is connected to the first pixel P1 in the non-display area 130 through a first connection line L1, so as to ensure that the row-column driving mode of the light emitting units is unchanged.
It should be noted that, when the different first connection lines L1 are respectively connected to the control signal line 1221 and the data line 1222, the different first connection lines L1 may be disposed in a first virtual pixel P0, so as to facilitate reducing the setting of the first virtual pixel P0, further improving the consistency of the display panel in the manufacturing process, and simplifying the manufacturing process difficulty of the display panel. In addition, when the first connection lines L1 corresponding to the control signal lines 1221 and the data lines 1222 are provided in the same first dummy pixel P0, the first connection lines L1 corresponding to the control signal lines 1221 and the data lines 1222 may be provided in different layers, avoiding shorting of the first connection lines L1 corresponding to the control signal lines 1221 and the data lines 1222. Illustratively, the first connection line L1 corresponding to the control signal line 1221 is disposed in the same layer as the control signal line 1221, and the first connection line L1 corresponding to the data line 1222 is disposed in the same layer as the data line 1221.
Fig. 8 is a schematic structural diagram of another display panel according to an embodiment of the invention. As shown in fig. 8, the display panel further includes a first transparent conductive line L11 and a second transparent conductive line L12, the first transparent conductive line L11 extending along the row direction X of the light emitting units, the first pixel P1 in the second pixel unit 121 being connected to the first light emitting unit 111 through the first transparent conductive line L11, the second transparent conductive line L12 extending along the column direction Y of the light emitting unit, the first pixel P1 in the first pixel unit 131 being connected to the first light emitting unit 111 through the second transparent conductive line L12.
Specifically, the first and second transparent conductive lines L11 and L12 may be anode leads of the first light emitting unit 111. When the second display area 120 at least partially surrounds the first display area 110, the first pixels P1 in the at least one second pixel unit 121 are disposed in the same row as the first light emitting units 111, and at this time, the first pixels P1 in the second pixel unit 121 and the first light emitting units 111 in the same row can be connected through the first transparent conductive lines L11, which is beneficial to reducing the length of the first transparent conductive lines L11. Meanwhile, the first pixels P1 in the at least one first pixel unit 131 are arranged in the same column as the first light emitting units 111, and at this time, the first pixels P1 in the first pixel unit 131 and the first light emitting units 111 in the same column may be connected through the second transparent conductive lines L12. When the first light emitting unit 111 is simultaneously in the same row as the first pixel P1 in the second pixel unit 121 and in the same column as the first pixel P1 in the first pixel unit 131, the connection relationship may be determined according to the length of the first transparent conductive line L11 and the length of the second transparent conductive line L12. Illustratively, in fig. 8, the first display area includes a plurality of rows and columns of the first light emitting units 111, and a distance from the first light emitting unit 111 of a part of the rows and a part of the columns (for example, the first column to the fourth column of all the rows in the first display area 110) to the first pixel P1 in the second pixel unit 121 at one side of the first display area 110 along the row direction X is smaller than a distance from the first light emitting unit 111 of the first column to the first pixel P1 in the first pixel unit 131, at this time, the first light emitting unit 111 of a part of the rows and a part of the columns (for example, the first column to the fourth column of all the rows in the first display area 110) may be disposed to be connected to the first pixel P1 in the second pixel unit 121 through the first transparent conductive line L11. Similarly, the distance from the first light emitting unit 111 of the partial row (e.g., the fifth, sixth, and seventh columns of the first row in the first display area 110) to the first pixel P1 in the first pixel unit 131 is smaller than the distance from the first light emitting unit 111 of the partial row (e.g., the fifth, sixth, and seventh columns of the first row in the first display area 110) to the first pixel P1 in the second pixel unit 121 on one side of the first display area 1110 in the row direction X, and at this time, the first light emitting unit 111 of the partial row (e.g., the fifth, sixth, and seventh columns of the first row in the first display area 110) may be disposed to be connected to the first pixel P1 in the first pixel unit 131 through the second transparent conductive line L12. In addition, the other first light emitting units 111 may also determine the connection relationship with the first pixel P1 according to the distance to the first pixel P1 in the second pixel unit 121 on the side of the first display area 1110 in the row direction X and the distance to the first pixel P1 in the first pixel unit 131.
With continued reference to fig. 8, in the first direction X, the first pixel P1 in the at least one second pixel unit 121 is disposed on a side of the first virtual pixel P0 near the first display area 110, where the first direction X is a row direction in which the first light emitting units 111 are arranged.
Specifically, the first pixel P1 is connected to the first light emitting unit 111 for driving the first light emitting unit 111 to emit light. When the second pixel units 121 include the first pixels P1, by disposing the first pixels P1 in at least one of the second pixel units 121 on a side of the first dummy pixels P0 near the first display area 110, the first pixels P1 in the second pixel units 121 may be disposed adjacent to the first display area 110, so that a line length of the first pixels P1 in the second pixel units 121 connected to the first light emitting unit 111 may be reduced. As can be seen from fig. 8, the first pixels P1 in the second pixel units 121 connected to the first light emitting units 111 can be disposed on the side of the first virtual pixels P0 near the first display area 110.
It should be noted that the number of the first light emitting units 111 is smaller than the number of the second pixel units 121. So that the second display area 120 may further have the first pixels P1 of the plurality of second pixel units 121 empty. At this time, the second pixel units 121 of the first pixels P1 may be arranged in an array in the second display area 120, for providing driving signals for the second light emitting units 123 in the second display area 120. By arranging the first pixels P1 in the other second pixel units 121, the uniformity of the aperture ratios of all the second pixel units 121 in the second display area 120 is improved, the uniformity of the pixel density in the second display area 120 is improved, and the display uniformity of the display panel is improved.
Fig. 9 is a schematic structural diagram of another display panel according to an embodiment of the invention. As shown in fig. 9, the first pixel unit 131 further includes a second dummy pixel P3, and the occupied area of the second dummy pixel P3 is equal to the occupied area of the first dummy pixel P0.
Specifically, the second pixel unit 121 may have the second pixel P2 disposed therein, and may also have the first pixel P1 or the first dummy pixel P0 disposed therein. The first pixel unit 131 is provided with a first pixel P1. When the first display region 110 and the second display region 120 are integrally displayed, the first light emitting unit 111 and the second light emitting unit 123 have light emitting devices of the same light emitting color, so that the first pixels P1 in the first pixel unit 131 and the second pixels P2 in the second pixel unit 121 have the same number. Illustratively, the first light emitting unit 111 and the second light emitting unit 123 each have a red light emitting device, a green light emitting device, and a blue light emitting device, and then the number of the first pixels P1 in the first pixel unit 131 and the number of the second pixels P2 in the second pixel unit 121 are equal to each other, and are three. At this time, the second virtual pixel P3 is disposed in the first pixel unit 131, and the occupied area of the second virtual pixel P3 is equal to the occupied area of the first virtual pixel P0, so that the occupied area of the first pixel unit 131 is similar to the occupied area of the second pixel unit 121, thereby being beneficial to improving the uniformity of the aperture ratio of the first pixel unit 131 and the second pixel unit 121, improving the uniformity of the pixel density in the first display area 110 and the second display area 120, and further improving the display uniformity of the display panel.
On the basis of the technical scheme, the second virtual pixels and the first pixels are arranged on the same layer.
Specifically, the first pixel may be formed of a driving circuit layer. When the first pixel is formed, the driving circuit layer can be adopted to synchronously form the second virtual pixel, so that the second virtual pixel and the first pixel are arranged on the same layer, the second virtual pixel and the first pixel can be formed simultaneously in the same process, and the process flow of the display panel is simplified.
The embodiment of the invention also provides a display device. Fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention. As shown in fig. 10, the display device 20 includes a display panel 21 provided in any embodiment of the present invention.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.
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| CN110288945B (en) * | 2019-06-28 | 2023-09-29 | 武汉天马微电子有限公司 | Display panel and display device |
| KR20220019160A (en) * | 2020-08-06 | 2022-02-16 | 삼성디스플레이 주식회사 | Display panel and display apparatus including the same |
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