CN107749287B - Display panel and display device - Google Patents
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- CN107749287B CN107749287B CN201711167918.5A CN201711167918A CN107749287B CN 107749287 B CN107749287 B CN 107749287B CN 201711167918 A CN201711167918 A CN 201711167918A CN 107749287 B CN107749287 B CN 107749287B
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- 239000004973 liquid crystal related substance Substances 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 19
- 230000002349 favourable effect Effects 0.000 description 7
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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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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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Abstract
The invention discloses a display panel and a display device, wherein a compensation capacitor is connected with at least one of driving signal lines connected with each row of pixel circuits in a second display area, so that the load of the driving signal line connected with the compensation capacitor can be increased, the load difference between the driving signal line and the driving signal line in a first display area is reduced, the problem of uneven data writing caused by different loads of the driving signal lines is solved, the uneven display is relieved, the compensation capacitor and a circuit unit are at least partially overlapped in the direction vertical to the display panel, the display panel can drive the positive production display of the display panel only by arranging the circuit unit, the compensation capacitor is at least partially overlapped with the circuit unit in the direction vertical to the display panel, the compensation capacitor does not need to occupy the frame area of the display panel independently but occupies the width of the frame of the display panel together with the circuit unit, thereby being beneficial to realizing the narrow frame design of the display panel.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
With the development of display technology, the comprehensive screen has a larger screen occupation ratio and an ultra-narrow frame, and compared with a common display screen, the comprehensive screen can greatly improve the visual effect of a viewer, thereby receiving wide attention. At present, in a display device such as a mobile phone using a full-screen, in order to realize functions of self-photographing, video call, and fingerprint recognition, a front camera, a receiver, a fingerprint recognition area, or a physical key is generally disposed on a front surface of the display device. As shown in the schematic structural diagram of the display panel shown in fig. 1, the front camera 10, the earpiece 20, and the like are generally disposed in the non-display area at the uppermost portion of the display panel, and the fingerprint recognition or physical key 30 and the like are generally disposed in the non-display area at the lowermost portion of the display panel, so that further increase of the screen occupation ratio of the display panel is limited.
Due to the existence of the middle area A in the display panel, the loads connected with the driving signal lines are inconsistent, so that the data writing is uneven, and the problem of uneven display occurs. In the prior art, a compensation capacitor is arranged in a frame region of a display panel to compensate a driving signal line with a small connected load, wherein the compensation capacitor is connected with the driving signal line with the small connected load.
Therefore, how to implement narrow-bezel display based on compensation of the driving signal lines is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which are used for solving the problem that narrow-frame display of the display panel cannot be realized due to the fact that load of driving signal lines is not consistent in the prior art.
The embodiment of the invention provides a display panel, which comprises a first display area and a second display area;
the first display area and the second display area are respectively provided with a plurality of rows of pixels, the pixels in the same row are connected through at least one driving signal line, and the number of the pixels in one row in the second display area is smaller than that of the pixels in one row in the first display area;
the second display area is divided into a first sub-area, a second sub-area and a middle area, and the first sub-area and the second sub-area are arranged at intervals by the middle area;
in the second display area, at least one driving signal line in the driving signal lines connected with the pixels in each row is connected with a compensation capacitor;
the display panel further includes: a circuit unit disposed at least in an interval region, the interval region being a region between the first sub-region or the second sub-region and the intermediate region;
the compensation capacitor and the circuit unit at least partially overlap in a direction perpendicular to the display panel.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the circuit unit at least includes: a driving circuit and an electrostatic protection circuit.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the compensation capacitor includes a first electrode and a second electrode;
the first electrode is connected with the driving signal line, the second electrode is connected with the fixed potential electrode, and the first electrode and the driving signal line are arranged in different layers.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the pixel includes at least: an organic light emitting device;
the first electrode and the anode of the organic light-emitting device are arranged on the same layer.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the cathode of the organic light emitting device is multiplexed as the second electrode.
In a possible implementation manner, in the display panel provided in an embodiment of the present invention, the display panel is a liquid crystal display panel, and the liquid crystal display panel at least includes: a pixel electrode and a common electrode;
the first electrode and the pixel electrode are arranged in the same layer.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the common electrode is multiplexed as the second electrode.
In a possible implementation manner, in the display panel provided by the embodiment of the present invention, the driving signal lines in the first sub-area and the driving signal lines in the second sub-area are disconnected from each other in the middle area, and the compensation capacitor is only disposed in the spacing area.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the middle area is a transparent area, the driving signal lines in the first sub-area and the driving signal lines in the second sub-area are connected to each other in the middle area through transparent connection lines, and the compensation capacitor is further disposed in the middle area.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the compensation capacitor in the middle area is a transparent capacitor.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the display panel is an organic light emitting display panel, one pole of the compensation capacitor and the transparent connection line are disposed in the same layer, and a cathode of the organic light emitting display panel is multiplexed as the other pole of the compensation capacitor.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the display panel is an organic light emitting display panel, one pole of the compensation capacitor and a part of the anode are disposed in the same layer, and a cathode of the organic light emitting display panel is multiplexed as the other pole of the compensation capacitor.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, an edge profile of the middle area is a circular arc.
In a possible implementation manner, in the display panel provided in the embodiment of the present invention, the second display region further includes: a data compensation capacitor connected to each of the data signal lines;
the data compensation capacitor and the circuit unit at least partially overlap in a direction perpendicular to the display panel.
On the other hand, the embodiment of the invention also provides a display device, which comprises the display panel provided by the embodiment of the invention.
The invention has the following beneficial effects:
in the display panel and the display device provided by the embodiments of the present invention, when the display area is divided into the first display area and the second display area, and the number of pixel circuits of one row of pixel circuits in the second display area is smaller than the number of pixel circuits of one row of pixel circuits in the first display area, the load of the driving signal lines connected to one row of pixel circuits in the second display area is smaller than the load of the driving signal lines connected to one row of pixel circuits in the first display area, and by connecting at least one driving signal line of the driving signal lines connected to each row of pixel circuits in the second display area to the compensation capacitor, the load of the driving signal lines connected to the compensation capacitor can be increased, the load difference between the driving signal lines in the first display area can be reduced, and thus the occurrence of data writing unevenness due to different loads of the driving signal lines can be improved, and then alleviate the uneven problem of demonstration to compensation electric capacity and circuit unit at least part overlap in the direction of perpendicular to display panel, because display panel must set up circuit unit just can drive display panel's just production and show, set up compensation electric capacity and circuit unit at least part overlap in the direction of perpendicular to display panel, thereby compensation electric capacity need not to occupy display panel's frame region alone, but occupies the width of display panel frame with circuit unit jointly, thereby be favorable to realizing display panel's narrow frame design.
Drawings
FIG. 1 is a schematic structural diagram of a conventional display panel;
fig. 2a and fig. 2b are schematic structural diagrams of a display panel according to an embodiment of the present invention;
fig. 3a and fig. 3b are schematic structural diagrams of driving signal lines connected to a compensation capacitor in a display panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a compensation capacitor connected to a driving signal line in a display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a driving signal line connected to a compensation capacitor in another display panel according to an embodiment of the present invention;
fig. 6a and fig. 6b are schematic structural diagrams of a display panel having a middle region according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a middle area of a display panel according to an embodiment of the present invention, in which a partial edge profile is a circular arc;
fig. 8 is a schematic structural diagram of a compensation capacitor connected to a data signal line in a display panel according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
In order to realize full-screen display, as shown in fig. 2a and fig. 2b, fig. 2a and fig. 2b are respectively schematic structural diagrams of a display panel provided by an embodiment of the present invention; generally, the camera, the headphone and other devices are arranged in the middle area a of the display panel, which causes the number of pixels in a row of pixels in the first display area B1 of the display panel to be greater than the number of pixels in a row of pixels in the second display area B2, wherein the second display area B2 is divided into the first sub-area B21, the second sub-area B22 and the middle area a, and the first sub-area B21 and the second sub-area B22 are arranged at intervals by the middle area a, resulting in different loads of driving signal lines connected to the pixels in the first display area B1 and the pixels in the second display area B2, and thus, the problem of uneven display caused by uneven data writing occurs. In addition, in the second display region, at least one of the driving signal lines connected to the pixel circuits in each row is connected to the compensation capacitor to increase the load of the driving signal line connected to the compensation capacitor, which increases the width of the frame, and is not favorable for the display panel to realize a narrow frame design.
Therefore, the current display panel with the middle area has the problems of uneven display and being not favorable for realizing a narrow frame of the display panel.
In order to solve the above problems caused by the middle area in the prior art, embodiments of the present invention provide a display panel and a display device. In order to make the objects, technical solutions and advantages of the present invention clearer, specific embodiments of a display panel and a display device according to an embodiment of the present invention are described in detail below with reference to the accompanying drawings. It should be understood that the preferred embodiments described below are only for illustrating and explaining the present invention and are not to be used for limiting the present invention. And the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The shapes and sizes of the various elements in the drawings are not to scale and are merely intended to illustrate the invention.
Specifically, as shown in fig. 3a, fig. 3a is a schematic structural diagram of a driving signal line connected to a compensation capacitor in a display panel according to an embodiment of the present invention; the display panel includes a first display region B1 and a second display region B2;
a plurality of rows of pixels 01 are arranged in the first display region B1 and the second display region B2 respectively, the pixels 01 in the same row are connected through at least one driving signal line 02, and the number of the pixels 01 in one row in the second display region B2 is smaller than that of the pixels 01 in one row in the first display region B1;
the second display area B2 is divided into a first sub-area B21, a second sub-area B22 and a middle area a, and the first sub-area B21 and the second sub-area B22 are spaced by the middle area a;
in the second display region B2, a compensation capacitor 03 is connected to at least one of the drive signal lines 02 connected to the pixels 01 in each row;
the display panel further includes: a circuit unit 09, the circuit unit 09 being disposed at least in an interval region between the first sub-region B21 or the second sub-region B22 and the middle region a;
the compensation capacitor 03 and the circuit unit 09 at least partially overlap in a direction perpendicular to the display panel.
Specifically, in the display panel provided by the embodiment of the present invention, when the display area is divided into the first display area and the second display area, and the number of pixels in one row of pixels in the second display area is smaller than the number of pixels in one row of pixels in the first display area, the load of the driving signal lines connected to the pixels in one row in the second display area is smaller than the load of the driving signal lines connected to the pixels in one row in the first display area, and by connecting at least one driving signal line of the driving signal lines connected to each row of pixels in the second display area to the compensation capacitor, the load difference of the driving signal lines connected to the compensation capacitor can be increased, and the load difference of the driving signal lines in the first display area can be decreased, so as to improve the occurrence of data writing due to the load difference of the driving signal lines, thereby alleviating the problem of display non-uniformity, and the compensation capacitor and the circuit unit at least partially overlap in the direction perpendicular to the display panel, because the display panel must set up circuit unit just can drive the display panel's just production and show, set up compensation capacitance for with circuit unit at least part overlap in the direction of perpendicular to display panel to compensation capacitance need not to occupy display panel's frame region alone, but occupies the width of display panel frame with circuit unit jointly, thereby is favorable to realizing display panel's narrow frame design.
Specifically, in the display panel provided by the embodiment of the present invention, as shown in fig. 3b, fig. 3b is a schematic structural diagram of a driving signal line connected to a compensation capacitor in the display panel provided by the embodiment of the present invention; in the second display region B2, the compensation capacitor 03 may be connected to each of the driving signal lines 02 connected to the pixels 01 in each row.
Specifically, in the display panel provided in the embodiment of the present invention, according to actual design requirements, each row of pixels may be connected to a plurality of driving signal lines for loading different signals at the same time, or may be connected to only one driving signal line. When each row of pixels is connected with a plurality of driving signal lines, all the driving signal lines connected with each row of pixels in the second display area are connected with the corresponding compensation capacitors, so that the load difference between the driving signal lines and the driving signal lines in the first display area can be reduced to the maximum extent, the phenomenon that data writing is uneven due to different loads of the driving signal lines is improved to the maximum extent, and the problem of uneven display is solved.
Optionally, in the display panel provided in the embodiment of the present invention, when a plurality of driving signal lines are connected to each row of pixels, the loading conditions of the driving signal lines are different, and the influence on the data writing unevenness is also different. Therefore, as shown in fig. 3a, in the second display region B2, the compensation capacitor 03 may be connected only to the selected driving signal line 02 having a large influence on the data writing unevenness, that is, the other driving signal lines may be provided in the same manner as in the first display region, so that the display unevenness is reduced, the difference in layout between the first display region and the second display region is reduced as much as possible, and the light transmission uniformity and the display uniformity of the entire display panel are improved.
Specifically, in the display panel provided in the embodiment of the present invention, the circuit unit includes at least: a driving circuit and an electrostatic protection circuit.
Specifically, in the display panel provided in the embodiment of the present invention, the driving circuit and the electrostatic circuit are circuit structures that the display panel must include, and the driving circuit and the electrostatic circuit inevitably occupy a certain width of a frame of the display panel, so that the compensation capacitor is configured to at least partially overlap with the film layer of the driving circuit or the electrostatic protection circuit, so as to reduce an area occupied by the compensation capacitor on the frame of the display panel, which is beneficial for implementing narrow-frame display of the display panel.
It should be noted that, as shown in fig. 4, fig. 4 is a schematic structural diagram of a compensation capacitor connected to a driving signal line in a display panel according to an embodiment of the present invention; the display panel includes a pixel circuit C, an anode 04, and a cathode 06, and a region D under the anode 04 may be provided with a driving circuit or an electrostatic protection circuit so as to at least partially overlap with a compensation capacitor 03, where the compensation capacitor 03 may be formed by a first electrode 05 provided on the same layer as the anode 04 and the cathode 06 as a second electrode.
Specifically, in the display panel provided in the embodiment of the present invention, the compensation capacitor includes a first electrode and a second electrode;
the first electrode is connected with the driving signal line, the second electrode is connected with the fixed potential electrode, and the first electrode and the driving signal line are arranged in different layers.
Specifically, in the display panel provided in the embodiment of the present invention, in order to form a voltage difference between two electrodes of the compensation capacitor, the first electrode is connected to the driving signal line, so that the potential on the first electrode changes with a change of the signal line loaded on the driving signal line, the second electrode is connected to the fixed potential electrode, so that the potential on the second electrode is always kept at the fixed potential, wherein the fixed potential value is set according to an actual situation, and the voltage difference between the first electrode and the second electrode is formed by the above setting, that is, the compensation capacitor is formed, so as to reduce a load difference between the driving signal line in the second display area and the driving signal line in the first display area.
The first electrode and the second electrode are arranged in different layers, and an insulating layer is arranged between the first electrode and the second electrode to form a medium of the compensation capacitor. The first electrode and the driving signal line are arranged in different layers, an insulating layer is arranged between the first electrode and the driving signal line, and the first electrode is connected with the driving signal line through a via hole.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 4, the pixel at least includes: an organic light emitting device;
the first electrode 05 is disposed at the same layer as the anode 04 of the organic light emitting device.
Specifically, in the display panel provided in the embodiment of the present invention, the first electrode of the compensation capacitor and the anode of the organic light emitting device are disposed in the same layer, and it is not necessary to separately dispose a film layer for the first electrode of the compensation capacitor, which reduces the disposition of the film layer, thereby reducing the thickness of the display panel.
Alternatively, in the display panel provided in the embodiment of the present invention, as shown in fig. 4, the cathode 06 of the organic light emitting device is reused as the second electrode.
Specifically, in the display panel provided in the embodiment of the present invention, the cathode of the organic light emitting device is reused as the second electrode, and the second electrode of the compensation capacitor does not need to be separately disposed, so that the number of the film layers is reduced, and the display panel is thinner on the basis of saving the production cost.
Optionally, in the display panel provided in the embodiment of the present invention, the display panel is a liquid crystal display panel, and the liquid crystal display panel at least includes: a pixel electrode and a common electrode;
the first electrode and the pixel electrode are arranged in the same layer.
Specifically, in the display panel provided in the embodiment of the present invention, when the display panel is a liquid crystal display panel, the first electrode of the compensation capacitor and the pixel electrode of the liquid crystal display panel are disposed in the same layer, and it is not necessary to separately dispose a film layer for the first electrode of the compensation capacitor, which reduces the disposition of the film layer, thereby reducing the thickness of the display panel.
Optionally, in the display panel provided in the embodiment of the present invention, the common electrode is multiplexed as the second electrode.
Specifically, in the display panel provided in the embodiment of the present invention, the common electrode of the liquid crystal display panel is reused as the second electrode, and the second electrode of the compensation capacitor does not need to be provided, so that the number of the film layers is reduced, and the liquid crystal display panel is thinner on the basis of saving the production cost.
Alternatively, in the display panel provided in the embodiment of the present invention, as shown in fig. 3a and 3B, the driving signal line 02 in the first sub-region B21 and the driving signal line 02 in the second sub-region B22 are disconnected from each other in the middle region a, and the compensation capacitor 03 is disposed only in the spacing region.
In particular, in the display panel provided by the embodiment of the present invention, the driving signal lines in the first sub-region and the driving signal lines in the second sub-region are disconnected from each other in the middle region, that is, the middle region is cut, there is no substrate of the display panel in the middle region, so that it is convenient to set elements such as a camera, an earphone, a light sensor, a distance sensor, an iris recognition sensor, and a fingerprint recognition sensor, there are separation regions between the middle region and the first sub-region and between the middle region and the second sub-region, respectively, when the driving signal lines in the first sub-region and the driving signal lines in the second sub-region are disconnected from each other in the middle region, the compensation capacitor is only set in the separation regions, so as to avoid occupying the outer frame region of the display panel, and to facilitate the display panel to.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 5, fig. 5 is a schematic structural diagram of a driving signal line connected to a compensation capacitor in another display panel provided in the embodiment of the present invention; the middle area a is a transparent area, the driving signal lines 02 in the first sub-area B21 and the driving signal lines 02 in the second sub-area B22 are connected to each other in the middle area a by transparent connection lines, and the compensation capacitor 03 is further disposed in the middle area a.
Specifically, in the display panel provided in the embodiment of the present invention, the middle area is a transparent area, that is, the entire outline of the display panel is a regular pattern, and no pixel is disposed in the middle area, so that the middle area is a light-transmitting area, at this time, the driving signal lines in the first sub-area and the driving signal lines in the second sub-area may be connected to each other in the middle area through a transparent connection line, and the compensation capacitor may be disposed outside the gap area, and may also be disposed in the middle area, and the dead-against area of the electrode of the compensation capacitor may be increased by disposing the compensation capacitor in the middle area, so as to increase the compensation capacitance value, avoid the gap area being too narrow, limit the compensation capacitor, and better compensate the driving signal lines in the second display area.
Optionally, in the display panel provided in the embodiment of the present invention, the compensation capacitor in the middle area is a transparent capacitor.
Specifically, in the display panel provided in the embodiment of the present invention, the first electrode and the second electrode of the compensation capacitor in the middle area both adopt transparent electrodes, and may be ITO electrodes or transparent metal electrodes.
Optionally, in the display panel provided in the embodiment of the present invention, the display panel is an organic light emitting display panel, one pole of the compensation capacitor and the transparent connection line are disposed in the same layer, and a cathode of the organic light emitting display panel is multiplexed as the other pole of the compensation capacitor.
Specifically, in the display panel provided in the embodiment of the present invention, when the display panel is an organic electroluminescent display panel, one electrode of the compensation capacitor and the transparent connection line are disposed on the same layer, and it is not necessary to separately dispose a film layer for the electrode of the compensation capacitor, which reduces the disposition of the film layer, thereby reducing the thickness of the display panel; the cathode of the organic electroluminescent display panel is multiplexed as the other electrode of the compensation capacitor, so that the other electrode of the compensation capacitor does not need to be independently arranged, the arrangement of a film layer is reduced, and the display panel is favorable for being thinner on the basis of saving the production cost.
Optionally, in the display panel provided in the embodiment of the present invention, the display panel is an organic light emitting display panel, one pole of the compensation capacitor and a part of the anode are disposed in the same layer, and a cathode of the organic light emitting display panel is multiplexed as the other pole of the compensation capacitor.
Specifically, in the display panel provided in the embodiment of the present invention, when the display panel is an organic electroluminescent display panel, one pole of the compensation capacitor and a part of the anode are disposed in the same layer, and it is not necessary to separately dispose a film layer for the electrode of the compensation capacitor, which reduces the disposition of the film layer, thereby reducing the thickness of the display panel; the cathode of the organic electroluminescent display panel is multiplexed as the other electrode of the compensation capacitor, so that the other electrode of the compensation capacitor does not need to be independently arranged, the arrangement of a film layer is reduced, and the display panel is favorable for being thinner on the basis of saving the production cost.
Alternatively, in the display panel provided in the embodiment of the present invention, as shown in fig. 7, an edge profile of the middle area a is a circular arc.
Specifically, the edge profile of the middle area a may be set according to the specific shape of the element disposed in the middle area a, for example, when the edge profile of the element disposed in the middle area a is an arc, for example, a circular camera, as shown in fig. 7, fig. 7 is a schematic structural diagram that a part of the edge profile of the middle area of the display panel provided by the embodiment of the present invention is an arc; the partial edge profile of the middle area A can be a circular arc; as shown in fig. 6a to 6b, when a plurality of devices are required to be disposed in the middle area a, fig. 6a and 6b are schematic structural diagrams of the middle area in the display panel according to the embodiment of the present invention; the edge profile of the intermediate area a is generally rectangular.
Specifically, in the display panel provided in the embodiment of the present invention, as shown in fig. 8, fig. 8 is a schematic structural diagram of a compensation capacitor connected to a data signal line in the display panel provided in the embodiment of the present invention; the second display area B2 further includes: a data compensation capacitor 08 connected to each data signal line 07;
the data compensation capacitor 08 at least partially overlaps the circuit unit in a direction perpendicular to the display panel.
Specifically, in the display panel provided by the embodiment of the present invention, in addition to the display panel having the middle region, the driving signal lines in the second display region have a load difference from the driving signal lines in the first display region, because the data signal lines in the second display region and the data signal lines in the first display region have load difference in the middle region, the data signal lines in the second display region need to be compensated by the data compensation capacitor, to reduce the load difference between the data signal lines in the second display region and the data signal lines in the first display region, thereby improving the uniformity of the display panel, and at least partially overlapping the data compensation capacitor with the circuit unit in a direction perpendicular to the display panel, the area of the data compensation capacitor occupying the frame of the display panel can be reduced, and the narrow frame design of the display panel is favorably realized.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, as shown in fig. 9, fig. 9 is a schematic structural diagram of the display device provided in the embodiment of the present invention; the display panel provided by the embodiment of the invention is included. The display device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. Other essential components of the display device are understood by those skilled in the art, and are not described herein or should not be construed as limiting the invention. The display device can be implemented by referring to the above embodiments of the display panel, and repeated descriptions are omitted.
In the display panel and the display device provided by the embodiments of the present invention, when the display area is divided into the first display area and the second display area, and the number of pixel circuits of one row of pixel circuits in the second display area is smaller than the number of pixel circuits of one row of pixel circuits in the first display area, the load of the driving signal lines connected to one row of pixel circuits in the second display area is smaller than the load of the driving signal lines connected to one row of pixel circuits in the first display area, and by connecting at least one driving signal line of the driving signal lines connected to each row of pixel circuits in the second display area to the compensation capacitor, the load of the driving signal lines connected to the compensation capacitor can be increased, the load difference between the driving signal lines in the first display area can be reduced, and thus the occurrence of data writing unevenness due to different loads of the driving signal lines can be improved, and then alleviate the uneven problem of demonstration to compensation electric capacity and circuit unit at least part overlap in the direction of perpendicular to display panel, because display panel must set up circuit unit just can drive display panel's just production and show, set up compensation electric capacity and circuit unit at least part overlap in the direction of perpendicular to display panel, thereby compensation electric capacity need not to occupy display panel's frame region alone, but occupies the width of display panel frame with circuit unit jointly, thereby be favorable to realizing display panel's narrow frame design.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (15)
1. A display panel, comprising a first display region and a second display region;
the first display area and the second display area are respectively provided with a plurality of rows of pixels, the pixels in the same row are connected through at least one driving signal line, and the number of the pixels in one row in the second display area is smaller than that of the pixels in one row in the first display area;
the second display area is divided into a first sub-area, a second sub-area and a middle area, and the first sub-area and the second sub-area are arranged at intervals by the middle area;
in the second display area, at least one driving signal line in the driving signal lines connected with the pixels in each row is connected with a compensation capacitor;
the display panel further includes: a circuit unit disposed at least in an interval region, the interval region being a region between the first sub-region or the second sub-region and the intermediate region;
the compensation capacitor and the circuit unit at least partially overlap in a direction perpendicular to the display panel.
2. The display panel according to claim 1, wherein the circuit unit includes at least: a driving circuit and an electrostatic protection circuit.
3. The display panel of claim 1, wherein the compensation capacitance comprises a first electrode and a second electrode;
the first electrode is connected with the driving signal line, the second electrode is connected with the fixed potential electrode, and the first electrode and the driving signal line are arranged in different layers.
4. A display panel as claimed in claim 3 characterized in that the pixels comprise at least: an organic light emitting device;
the first electrode and the anode of the organic light-emitting device are arranged on the same layer.
5. The display panel according to claim 4, wherein a cathode of the organic light emitting device is multiplexed as the second electrode.
6. The display panel according to claim 3, wherein the display panel is a liquid crystal display panel, and the liquid crystal display panel includes at least: a pixel electrode and a common electrode;
the first electrode and the pixel electrode are arranged in the same layer.
7. The display panel according to claim 6, wherein the common electrode is multiplexed as the second electrode.
8. The display panel according to claim 1, wherein the drive signal line in the first sub-area and the drive signal line in the second sub-area are disconnected from each other in the intermediate area, and the compensation capacitance is provided only in the spacing area.
9. The display panel according to claim 1, wherein the middle region is a transparent region, the driving signal lines in the first sub-region and the driving signal lines in the second sub-region are connected to each other in the middle region by transparent connection lines, and the compensation capacitor is further provided in the middle region.
10. The display panel of claim 9, wherein the compensation capacitor in the middle region is a transparent capacitor.
11. The display panel according to claim 10, wherein the display panel is an organic light emitting display panel, one pole of the compensation capacitor and the transparent connection line are disposed in the same layer, and a cathode of the organic light emitting display panel is multiplexed as the other pole of the compensation capacitor.
12. The display panel according to claim 10, wherein the display panel is an organic light emitting display panel, one pole of the compensation capacitor and a part of the anode are disposed in the same layer, and a cathode of the organic light emitting display panel is multiplexed as the other pole of the compensation capacitor.
13. The display panel according to any one of claims 1 to 12, wherein an edge profile of the middle area is a circular arc.
14. The display panel of any one of claims 1-12, further comprising, within the second display region: a data compensation capacitor connected to each data signal line;
the data compensation capacitor and the circuit unit at least partially overlap in a direction perpendicular to the display panel.
15. A display device characterized by comprising the display panel according to any one of claims 1 to 14.
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