CN110751926B - Display panel and display device - Google Patents
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- CN110751926B CN110751926B CN201911056965.1A CN201911056965A CN110751926B CN 110751926 B CN110751926 B CN 110751926B CN 201911056965 A CN201911056965 A CN 201911056965A CN 110751926 B CN110751926 B CN 110751926B
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- H—ELECTRICITY
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- 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
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- H10K59/12—Active-matrix OLED [AMOLED] displays
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Abstract
The invention discloses a display panel and a display device, wherein the pixel distribution density in a first display area is smaller than that in a second display area, namely the number of pixels connected with a first signal line is smaller than that of pixels connected with a second signal line, and the number of the connected pixels is reduced, which means that the load of the first signal line is lower than that of the second signal line. Therefore, in order to compensate the load difference between the first signal line and the second signal line, the load compensation unit is arranged in the first display area for each first signal line, and the compensation value of the load compensation unit is smaller as the number of pixels connected with the first signal line is larger, so that the load of the first signal line connected with the first signal line with the smaller number of pixels is increased, the display split problem of the display panel is improved, and the display effect is improved.
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
A display panel commonly used at present can be generally divided into a display area for displaying an image and a non-display area for disposing a peripheral driving circuit and the like. The pixels arranged in an array in the display region are connected to a driving circuit or the like in the non-display region via a switching element. In general, each switching element is connected to one scan line and one data line, the switching element is turned on by receiving a scan signal of the scan line, the pixel is driven to display a certain gray scale by receiving a data signal of the data line, and the switching elements of different pixels are connected to the scan line and the data line in different combinations, so that each pixel can independently emit light. At present, the display area of a common display panel is a regular rectangle, so that the number of pixels in each row is the same, and one scan line drives one row of pixels at the same time.
However, with the development of display technology and the higher requirements of people on display screens, the screen occupation ratio (the ratio of the area of the display panel to the area of the front face of the mobile terminal) of the mobile terminal is continuously increased and is developed towards full-screen display.
In order to realize full-screen display, the display panel has a transparent display area and a non-transparent display area, wherein the transparent display area and the non-transparent display area can display images, but the distribution density of pixels in the transparent display area is smaller than that of pixels in the non-transparent display area. Because the pixel distribution density of the transparent display area is different from that of the non-transparent display area, the load on each signal line in the transparent display area is relatively reduced, and the problem of split display is caused.
Disclosure of Invention
In view of this, embodiments of the present invention provide a display panel and a display device to solve the problem of split display in the prior art.
The display panel provided by the embodiment of the invention comprises a first display area and a second display area;
the pixel distribution density in the first display area is smaller than the pixel distribution density in the second display area;
the display panel comprises a plurality of signal lines; the signal lines connected with the pixels in the first display area and the second display area are first signal lines, and the signal lines connected with the pixels in the second display area are second signal lines;
a load compensation unit for compensating the first signal line is also arranged in the first display area; the load compensation unit is located between adjacent pixels in the first display area, and the compensation value of the load compensation unit is smaller when the number of the pixels connected by the first signal line is larger.
Correspondingly, the embodiment of the invention also provides a display device which comprises any one of the display panels 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, since the pixel distribution density in the first display region is less than the pixel distribution density in the second display region, that is, the number of pixels connected to the first signal line is less than the number of pixels connected to the second signal line, the number of connected pixels is reduced, which means that the load of the first signal line is lower than the load of the second signal line. Therefore, in order to compensate the load difference between the first signal line and the second signal line, the load compensation unit is arranged in the first display area for each first signal line, and the compensation value of the load compensation unit is smaller as the number of pixels connected with the first signal line is larger, so that the load of the first signal line connected with the first signal line with the smaller number of pixels is increased, the display split problem of the display panel is improved, and the display effect is improved. And for each first signal line, the corresponding load compensation unit is positioned between the adjacent pixels in the first display area, so that the load compensation unit is arranged by utilizing the area between the adjacent pixels in the first display area, and the problem of large frame width caused by the frame occupying the first display area can be avoided. Since the first signal line is originally provided between the adjacent pixels of the first display region, the effect of providing the load compensation unit in the region overlapping with the first signal line on the transparency of the first display region is small.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first display region in a display panel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first display region in a display panel according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of a display panel according to yet another embodiment of the present invention;
fig. 5 is a schematic structural diagram of a display panel according to yet another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a display panel according to yet another embodiment of the present invention;
fig. 7 is a schematic structural diagram of a display panel according to yet another embodiment of the present invention;
fig. 8 is a schematic structural diagram of a display panel according to yet another embodiment of the present invention;
fig. 9 is a schematic structural diagram of a display panel according to yet another embodiment of the present invention;
fig. 10 is a schematic structural diagram of a display panel according to yet another embodiment of the present invention;
fig. 11 is a schematic structural diagram of a display panel according to yet another embodiment of the present invention;
fig. 12 is a schematic structural diagram of a display panel according to yet another embodiment of the present invention;
fig. 13 is a schematic structural diagram of a display panel according to yet another embodiment of the present invention;
fig. 14 is a schematic structural diagram of a display panel according to yet another embodiment of the present invention;
fig. 15 is a schematic structural diagram of a display panel according to yet another embodiment of the present invention;
fig. 16 is a schematic structural diagram of a display panel according to yet another embodiment of the present invention;
fig. 17 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, the present invention is further described with reference to the accompanying drawings and examples. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted. The words expressing the position and direction described in the present invention are illustrated in the accompanying drawings, but may be changed as required and still be within the scope of the present invention. The drawings of the present invention are for illustrative purposes only and do not represent true scale.
It should be noted that in the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.
The following describes a display panel and a display device provided in an embodiment of the present invention with reference to the accompanying drawings.
Fig. 1 shows a display panel according to an embodiment of the present invention, where fig. 1 is a schematic structural diagram of the display panel according to an embodiment of the present invention; includes a first display region a1 and a second display region a 2;
the pixel pix distribution density within the first display region a1 is less than the pixel pix distribution density within the second display region a 2;
the display panel comprises a plurality of signal lines; among them, the signal line connected to both the pixels pix in the first display region a1 and the second display region a2 is the first signal line 11, and the signal line connected only to the pixels pix in the second display region a2 is the second signal line 12;
a load compensation unit 20 for compensating the first signal line 11 is further provided in the first display area a 1; wherein, the load compensation unit 20 is located between the adjacent pixels pix in the first display region a1, and the larger the number of the pixels pix connected by the first signal line 11 is, the smaller the compensation value of the load compensation unit 20 is.
In the display panel provided in the embodiment of the present invention, since the pixel distribution density in the first display area is smaller than the pixel distribution density in the second display area, that is, the number of pixels connected to the first signal line is smaller than the number of pixels connected to the second signal line, the number of connected pixels is reduced, which means that the load of the first signal line is lower than the load of the second signal line. Therefore, in order to compensate the load difference between the first signal line and the second signal line, the load compensation unit is arranged in the first display area for each first signal line, and the compensation value of the load compensation unit is smaller as the number of pixels connected with the first signal line is larger, so that the load of the first signal line connected with the first signal line with the smaller number of pixels is increased, the display split problem of the display panel is improved, and the display effect is improved.
And for each first signal line, the corresponding load compensation unit is positioned between the adjacent pixels in the first display area, so that the load compensation unit is arranged by utilizing the area between the adjacent pixels in the first display area, and the problem of large frame width caused by the frame occupying the first display area can be avoided. Since the first signal line is originally provided between the adjacent pixels of the first display region, the effect of providing the load compensation unit in the region overlapping with the first signal line on the transparency of the first display region is small.
When embodied. In the display panel provided by the embodiment of the invention, the first display area is generally a transparent display area because the pixel distribution density in the first display area is low, and a camera can be arranged in the first display area and can capture images through the first display area, so that a shooting function is realized.
Further, in the display panel provided in the embodiment of the present invention, the relative position relationship between the first display area and the second display area is not limited, for example, the first display area may be surrounded by the second display area, or the first display area is located at a side of the second display area, or the first display area is partially surrounded by the second display area, which is not limited herein.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 2, fig. 2 is a schematic structural diagram of a first display region in the display panel provided in the embodiment of the present invention;
the first signal line comprises a first direction trace 111 extending along the first direction Y and a second direction trace 112 extending along the second direction X;
the load compensation unit comprises a first load compensation unit 21 for compensating the first-direction routing 111 and a second load compensation unit 22 for compensating the second-direction routing 112;
the first load compensation unit 21 is located between two pixels pix adjacently arranged in the first direction X within the first display area a 1;
the second load compensation unit 22 is located between two pixels pix adjacently arranged in the second direction Y within the first display area a 1.
According to the display panel provided by the embodiment of the invention, the first load compensation unit is utilized to compensate the load of the first-direction routing, and the compensation value of the first load compensation unit is smaller as the number of the pixels connected with the first-direction routing is larger, so that the load difference between the signal lines of the display panel along the first direction is reduced, and the problem of screen splitting of the first display area and the second display area at the boundary along the first direction is prevented. In a similar way, the second load compensation unit is utilized to compensate the load of the second direction routing, the number of pixels connected with the second direction routing is increased, the compensation value of the second load compensation unit is decreased, and therefore the load difference between the signal lines of the display panel along the second direction is reduced, the problem that the first display area and the second display area are subjected to screen splitting at the boundary along the second direction is solved, and the display panel is guaranteed not to have the screen splitting problem on the whole.
Specifically, in the display panel provided in the embodiment of the present invention, the setting of the compensation value of the load compensation unit may be set according to the actual situation of the display panel, and is not limited herein. For example, for the first load compensation units, one second signal line extending along the first direction in the display panel may be selected as a first reference signal line, and the compensation value of each first load compensation unit is determined according to a difference between a load amount on the first reference signal line and a load amount on each first-direction routing line. For the second load compensation units, one second signal line extending along the second direction in the display panel may be selected as a second reference signal line, and the compensation value of each first load compensation unit is determined according to a difference between a load amount on the second reference signal line and a load amount on each first-direction routing line. For example, the selected reference signal line may be the second signal line connected with the largest number of pixels. Of course, in the case where the number of pixels connected to the majority of the second signal lines in the display panel is the same, one of all the second signal lines connected to the same number of pixels may be selected as the reference signal line, which is not limited herein.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 3, fig. 3 is a schematic structural diagram of a first display region in the display panel provided in another embodiment of the present invention;
routing 111 for each first direction: the first load compensation unit 21 for compensating the first direction trace 111 includes M-1 first load compensation sub-units 210; wherein M is the number of pixels pix in the first display area a1 connected by the first direction trace 111; each first load compensation subunit 210 is located between adjacent pixels pix connected to the first direction trace 111 in the first display area a1, and there is one first load compensation subunit between every two adjacent pixels pix. That is, it is equivalent to divide one first load compensation unit 21 into M-1 first load compensation subunits 210, and uniformly distribute the M-1 first load compensation subunits 210 among M pixels pix, so as to ensure that when the first display region displays, the first load compensation subunits 210 are uniformly distributed along the first direction, that is, the light-shielded region is uniformly distributed, rather than being gathered in a certain region, the problem of displaying black dots occurs.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 3, the compensation values of the first load compensation sub-units 210 belonging to the same first load compensation unit 21 are the same, so as to ensure that the loads on the routing lines 111 in the first direction are uniformly distributed, and ensure the consistency of signal transmission between the signal lines along the first direction.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 3, for each second direction routing line 112: the second load compensation unit 22 for compensating the second directional routing 112 includes N-1 second load compensation sub-units 220; wherein N is the number of pixels pix in the first display area a1 connected by the second direction trace 112;
each second load compensation subunit 220 is located between adjacent pixels pix connected to the second direction trace 112 in the first display area a1, and one second load compensation subunit 220 is located between every two adjacent pixels pix. That is, it is equivalent to divide one second load compensation unit 22 into N-1 second load compensation subunits 220, and uniformly distribute the N-1 second load compensation subunits 220 among the N pixels pix, so as to ensure that when the first display region displays, the second load compensation subunits 220 are uniformly distributed along the second direction, that is, the light-shielded region is uniformly distributed, rather than being gathered in a certain region, the problem of displaying black dots occurs.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 3, the compensation values of the second load compensation sub-units 220 belonging to the same second load compensation unit 22 are the same, so as to ensure that the loads on the routing lines 112 in the second direction are uniformly distributed, and ensure the consistency of signal transmission between the signal lines along the second direction.
In the embodiment of the present invention, the number of the corresponding signal lines for each row or each column of pixels is set according to specific situations, and the number of the signal lines drawn in the drawings in the specification is only for illustrative purposes and does not limit the protection scope of the embodiment of the present invention.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 4, fig. 4 is a schematic structural diagram of a display panel provided in another embodiment of the present invention; the display panel further includes a fixed power voltage line pvdd;
the first direction wiring comprises a data line data, and the second direction wiring comprises a scanning line scan, a light-emitting control line emit and a reference signal line vref;
the data line data and the fixed power supply voltage line pvdd are arranged in the same layer;
the scanning line sacn and the emission control line emit are disposed in the same layer.
In a specific implementation, in the display panel provided in the embodiment of the present invention, the scan lines and the light-emitting control lines are located in the first metal layer, the reference signal lines are located in the second metal layer, and the data lines and the fixed power voltage lines are located in the third metal layer.
Specifically, in the present invention, the first metal layer, the second metal layer and the third metal layer are stacked, and an insulating material is further disposed between any two of the first metal layer, the second metal layer and the third metal layer; however, the relative positional relationship among the first metal layer, the second metal layer, and the third metal layer is not limited. For example, the first metal layer may be located between the second metal layer and the third metal layer, or the second metal layer may be located between the third metal layer and the first metal layer, or the third metal layer may be located between the second metal layer and the first metal layer. The display panel provided by the embodiment of the invention is described below by taking the example that the second metal layer is located between the first metal layer and the third metal layer.
Specifically, as shown in fig. 5, fig. 5 is a schematic structural diagram of a display panel according to another embodiment of the present invention; in the organic electroluminescent display panel provided in the embodiment of the present invention, the substrate 01 sequentially includes: an active layer 02, a gate insulating layer 03, a first metal layer (wherein the first metal layer includes a gate electrode, a scan line and a light emission control line of a transistor, only a gate electrode 05 and a scan line scan of the transistor are seen in fig. 5), a first dielectric layer 06, a second metal layer (wherein the second metal layer includes a reference signal line vref), a second dielectric layer 07 and a third metal layer (wherein the third metal layer includes a source electrode and a drain electrode of the transistor, a data line and a fixed power voltage line, only a source electrode 08, a drain electrode 09 and a data line data of the transistor are seen in fig. 5.)
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 6, fig. 6 is a schematic structural diagram of a display panel provided in another embodiment of the present invention; the first load compensation unit corresponding to the data line data includes: and a first electrode c1 on the same layer as the reference signal line vref and electrically connected to the fixed power voltage line pvdd, wherein the first electrode c1 has an overlapping region with the data line data in a direction perpendicular to the display panel. A capacitance is formed using the first electrode c1 and the data line data, so that a load connected to the data line data having a smaller number of pixels increases. In addition, since the first electrode c1 and the reference signal line vref are disposed in the same layer, the first electrode c1 and the reference signal line vref can be formed at the same time only by changing the patterning pattern when the reference signal line vref is formed without adding a film layer and adding a patterning process, thereby simplifying the process steps and saving the production cost.
Or, optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 7, fig. 7 is a schematic structural diagram of a display panel provided in another embodiment of the present invention; the first load compensation unit corresponding to the data line data includes: and a second electrode c2 on the same layer as the scan line scan and electrically connected to the fixed power voltage line pvdd, wherein the second electrode c2 has an overlapping region with the data line data in a direction perpendicular to the display panel. A capacitance is formed using the second electrode c2 and the data line data, so that a load connected to the data line data having a smaller number of pixels increases. In addition, since the second electrode c2 and the scan line scan are disposed in the same layer, a film layer is not required to be added separately to increase the patterning process, and the second electrode c2 and the scan line scan can be formed at the same time only by changing the patterning pattern when the scan line scan is formed, thereby simplifying the process steps and saving the production cost.
Or, optionally, in the display panel provided in the embodiment of the present invention, when the metal layer where the data line is located between the metal layer where the reference signal line is located and the metal layer where the scan line is located, and when a larger compensation value is required, the first load compensation unit corresponding to the data line includes: a first electrode disposed on the same layer as the reference signal line and electrically connected to the fixed power voltage line, wherein the first electrode and the data line have an overlapping region in a direction perpendicular to the display panel; and the second electrode is positioned on the same layer as the scanning line and is electrically connected with the fixed power supply voltage line, and the second electrode and the data line have an overlapping area in the direction vertical to the display panel. Two capacitors are formed by the first electrode and the data line, and the second electrode and the data line, so that the load of the data line data with less pixel number is increased.
Optionally, 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 display panel provided in another embodiment of the present invention; the second load compensation unit corresponding to the reference signal line vref includes: and a third electrode c3 electrically connected to the fixed power voltage line pvdd on the same layer, and the third electrode c3 has an overlapping area with the reference signal line vref in a direction perpendicular to the display panel. A capacitance is formed by the third electrode c3 and the reference signal line vref, so that a load connected to the reference signal line vref having a smaller number of pixels increases. In addition, since the third electrode c3 and the fixed power voltage line pvdd are disposed in the same layer, it is not necessary to separately add a film layer and a patterning process, and the third electrode c3 and the fixed power voltage line pvdd can be formed at the same time only by changing a patterning pattern when the fixed power voltage line pvdd is formed, thereby simplifying the process steps and saving the production cost.
Or, optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 9, fig. 9 is a schematic structural diagram of a display panel provided in yet another embodiment of the present invention; the second load compensation unit corresponding to the reference signal line vref includes: and a fourth electrode c4 on the same layer as the scan line scan and electrically connected to the fixed power voltage line pvdd, and the fourth electrode c4 has an overlapping area with the reference signal line vref in a direction perpendicular to the display panel. A capacitance is formed by the fourth electrode c4 and the reference signal line vref, so that a load connected to the reference signal line vref having a smaller number of pixels increases. In addition, since the fourth electrode c4 and the scan line scan are disposed in the same layer, a patterning process is not required to be added separately, and the fourth electrode c4 and the scan line scan can be formed simultaneously only by changing a patterning pattern when the scan line scan is formed, thereby simplifying the process steps and saving the production cost.
Or, optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 10, fig. 10 is a schematic structural diagram of a display panel provided in yet another embodiment of the present invention; the second load compensation unit corresponding to the reference signal line vref includes: the second load compensation unit corresponding to the reference signal line vref includes: a third electrode c3 on the same layer as and electrically connected to the fixed power voltage line pvdd, the third electrode c3 having an overlapping area with the reference signal line vref in a direction perpendicular to the display panel; and a fourth electrode c4 on the same layer as the scan line scan and electrically connected to the fixed power voltage line pvdd, and the fourth electrode c4 has an overlapping area with the reference signal line vref in a direction perpendicular to the display panel. Two capacitances are formed by the third electrode c3 and the reference signal line vref, and the fourth electrode c4 and the reference signal line vref, whereby the load connected to the reference signal line vref having a smaller number of pixels increases.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 11, fig. 11 is a schematic structural diagram of a display panel provided in another embodiment of the present invention; the second load compensation unit corresponding to the Scan line Scan includes: a fifth electrode c5 electrically connected to the fixed power voltage line pvdd on the same layer, and the fifth electrode c5 has an overlapping area with the scan line scan in a direction perpendicular to the display panel; a capacitance is formed by the fifth electrode c5 and the Scan line Scan, so that a load connected to the Scan line Scan having a smaller number of pixels is increased. Moreover, since the fifth electrode c5 and the fixed power voltage line pvdd are disposed in the same layer, it is not necessary to separately add a film layer and a patterning process, and the fifth electrode c5 and the fixed power voltage line pvdd can be formed at the same time only by changing a patterning pattern when the fixed power voltage line pvdd is formed, thereby simplifying the process steps and saving the production cost.
Or, optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 12, fig. 12 is a schematic structural diagram of a display panel provided in yet another embodiment of the present invention; the second load compensation unit corresponding to the Scan line Scan includes: and a sixth electrode c6 on the same layer as the reference signal line vref and electrically connected to the fixed power voltage line pvdd, and the sixth electrode c6 has an overlapping region with the scan line scan in a direction perpendicular to the display panel. A capacitance is formed by the sixth electrode c6 and the Scan line Scan, so that a load connected to the Scan line Scan having a smaller number of pixels is increased. In addition, since the sixth electrode c6 and the reference signal line vref are disposed in the same layer, the sixth electrode c6 and the reference signal line vref can be formed at the same time only by changing the patterning pattern when the reference signal line vref is formed without separately adding a film and increasing the patterning process, thereby simplifying the process steps and saving the production cost.
Or, optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 13, fig. 13 is a schematic structural diagram of a display panel provided in yet another embodiment of the present invention; the second load compensation unit corresponding to the Scan line Scan includes: and a seventh electrode c7 on the same layer as the active layer 02 of the display panel and electrically connected to the fixed power voltage line pvdd, wherein the seventh electrode c7 has an overlapping region with the Scan line Scan in a direction perpendicular to the display panel. A capacitance is formed by the seventh electrode c7 and the Scan line Scan, so that a load connected to the reference signal line vref having a small number of pixels increases. In addition, since the seventh electrode c7 and the active layer 02 are disposed in the same layer, a patterning process is not separately added to the seventh electrode c7 and the active layer 02, and the seventh electrode c7 and the active layer 02 can be simultaneously formed only by changing a patterning pattern when the active layer 02 is formed, thereby simplifying the process steps and saving the production cost.
Or, optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 14, fig. 14 is a schematic structural diagram of a display panel provided in yet another embodiment of the present invention; when the required compensation value of the second load compensation unit is larger, the second load compensation unit corresponding to the Scan line Scan may include: at least two of the fifth electrode c5, the sixth electrode c6, and the seventh electrode c 7.
Optionally, in the display panel provided in the embodiment of the present invention, the second load compensation unit corresponding to the light-emitting control line includes: an eighth electrode electrically connected to the fixed power voltage line on the same layer, wherein the eighth electrode and the light emission control line have an overlapping region in a direction perpendicular to the display panel; and/or
A ninth electrode located on the same layer as the reference signal line and electrically connected to the fixed power voltage line, the ninth electrode and the light emission control line having an overlapping region in a direction perpendicular to the display panel; and/or
And the tenth electrode is positioned on the same layer as the active layer in the display panel and is electrically connected with the fixed power supply voltage line, and the tenth electrode and the light-emitting control line have an overlapping region in a direction vertical to the display panel.
Specifically, since the light-emitting control line and the scan line belong to the same layer, the setting of the second load compensation unit corresponding to the light-emitting control line may refer to the setting of the second load compensation unit corresponding to the scan line, which is not described herein again.
Fig. 6 to 14 are schematic illustrations of the film structure of fig. 5.
In a specific implementation, in the display panel provided in the embodiment of the present invention, for different routing lines, when the corresponding second load compensation units are located on the same film layer and between the same two pixels, the second load compensation units may be set to be an integrated structure. For example, as shown in fig. 15, fig. 15 is a schematic structural diagram of a display panel according to another embodiment of the present invention; if the second load compensation units 22 corresponding to the scan line scan, the emission control line emit, and the reference signal line vref are all located at the same layer as the fixed power voltage line, the second load compensation units 22 corresponding to the scan line scan, the emission control line emit, and the reference signal line vref, respectively, may be provided as an integrated structure. Alternatively, for example, when the first load compensation units 21 corresponding to the three data lines data corresponding to the same pixel pix are all located at the same layer, the first load compensation units 21 corresponding to the three data lines data corresponding to the same pixel pix may be arranged as an integral structure.
In practical implementation, in the display panel provided by the embodiment of the present invention, as shown in fig. 4 and fig. 15, the pixel pix includes at least three sub-pixels, for example, a red sub-pixel R, a blue sub-pixel B, and a green sub-pixel G including three primary colors. Of course, in some panels, the pixels further include a yellow sub-pixel or a white sub-pixel in order to improve the display quality, and the disclosure is not limited herein.
In concrete implementation, in the display panel provided in the embodiment of the present invention, as shown in fig. 16, in the second display region a2, when the number of pixels pix connected to the second signal line 12 extending in the same direction is different, and when one end of the second signal line 12 having the smaller number of connected pixels pix is adjacent to the first display region a1, for the second signal line 12, the third load compensation unit 30 may be disposed, and the third load compensation unit 30 may be disposed between the adjacent pixels pix adjacent to the second signal line 12 in the first display region a 1.
Based on the same inventive concept, the embodiment of the invention further provides a display device, which comprises any one of the display panels provided by the embodiment of the invention. The display device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a digital photo frame, a navigator and the like shown in fig. 17. 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, since the pixel distribution density in the first display region is less than the pixel distribution density in the second display region, that is, the number of pixels connected to the first signal line is less than the number of pixels connected to the second signal line, the number of connected pixels is reduced, which means that the load of the first signal line is lower than the load of the second signal line. Therefore, in order to compensate the load difference between the first signal line and the second signal line, the load compensation unit is arranged in the first display area for each first signal line, and the compensation value of the load compensation unit is smaller as the number of pixels connected with the first signal line is larger, so that the load of the first signal line connected with the first signal line with the smaller number of pixels is increased, the display split problem of the display panel is improved, and the display effect is improved. And for each first signal line, the corresponding load compensation unit is positioned between the adjacent pixels in the first display area, so that the load compensation unit is arranged by utilizing the area between the adjacent pixels in the first display area, and the problem of large frame width caused by the frame occupying the first display area can be avoided. Since the first signal line is originally provided between the adjacent pixels of the first display region, the effect of providing the load compensation unit in the region overlapping with the first signal line on the transparency of the first display region is small.
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 (12)
1. A display panel, comprising a first display region and a second display region;
the pixel distribution density in the first display area is smaller than that in the second display area, and the first display area is a transparent display area;
the display panel comprises a plurality of signal lines; the signal lines connected with the pixels in the first display area and the second display area are first signal lines, and the signal lines connected with the pixels in the second display area are second signal lines;
a load compensation unit for compensating the first signal line is also arranged in the first display area; the load compensation unit is located between adjacent pixels in a row direction or a column direction in the first display area, and the compensation value of the load compensation unit is smaller when the number of the pixels connected by the first signal line is larger.
2. The display panel of claim 1,
the first signal line comprises a first direction routing wire extending along a first direction and a second direction routing wire extending along a second direction;
the load compensation unit comprises a first load compensation unit for compensating the routing in the first direction and a second load compensation unit for compensating the routing in the second direction;
the first load compensation unit is positioned between two pixels which are adjacently arranged along the first direction in the first display area;
the second load compensation unit is located between two pixels which are adjacently arranged in the second direction in the first display area.
3. The display panel of claim 2,
routing for each first direction: the first load compensation unit for compensating the routing in the first direction comprises M-1 first load compensation subunits; wherein M is the number of pixels in the first display region wired in the first direction;
each first load compensation subunit is located between adjacent pixels in the first display area, and the adjacent pixels are connected with the first direction routing wires, and one first load compensation subunit is located between every two adjacent pixels.
4. The display panel of claim 3,
the compensation values of the first load compensation subunits belonging to the same first load compensation unit are the same.
5. The display panel of claim 2,
routing for each second direction: the second load compensation unit for compensating the second directional routing comprises N-1 second load compensation subunits; wherein N is the number of pixels in the first display region wired in the second direction;
each second load compensation subunit is located between adjacent pixels in the first display area, and the adjacent pixels are connected with the second direction by routing, and one second load compensation subunit is located between every two adjacent pixels.
6. The display panel of claim 5,
the compensation values of the second load compensation subunits belonging to the same second load compensation unit are the same.
7. The display panel of claim 2, wherein the display panel further comprises a fixed power supply voltage line;
the first direction routing comprises a data line, and the second direction routing comprises a scanning line, a light-emitting control line and a reference signal line;
the data line and the fixed power supply voltage line are arranged on the same layer;
the scanning lines and the light emitting control lines are arranged in the same layer.
8. The display panel of claim 7,
the first load compensation unit corresponding to the data line comprises:
a first electrode on the same layer as the reference signal line and electrically connected to the fixed power voltage line, the first electrode having an overlapping region with the data line in a direction perpendicular to the display panel; and/or
And the second electrode is positioned on the same layer as the scanning line and is electrically connected with the fixed power supply voltage line, and the second electrode and the data line have an overlapping area in a direction perpendicular to the display panel.
9. The display panel of claim 7,
the second load compensation unit corresponding to the reference signal line comprises:
a third electrode electrically connected to the fixed power voltage line on the same layer, wherein the third electrode and the reference signal line have an overlapping region in a direction perpendicular to the display panel; and/or
And a fourth electrode located on the same layer as the scan line and electrically connected to the fixed power voltage line, wherein the fourth electrode and the reference signal line have an overlapping region in a direction perpendicular to the display panel.
10. The display panel of claim 7,
the second load compensation unit corresponding to the scanning line comprises:
a fifth electrode electrically connected to the fixed power voltage line on the same layer, wherein the fifth electrode and the scan line have an overlapping region in a direction perpendicular to the display panel; and/or
A sixth electrode on the same layer as the reference signal line and electrically connected to the fixed power voltage line, the sixth electrode having an overlapping region with the scan line in a direction perpendicular to the display panel; and/or
And the seventh electrode is positioned on the same layer as the active layer in the display panel and is electrically connected with the fixed power supply voltage line, and the seventh electrode and the scanning line have an overlapping area in a direction perpendicular to the display panel.
11. The display panel of claim 7,
the second load compensation unit corresponding to the light-emitting control line comprises:
an eighth electrode electrically connected to the fixed power voltage line on the same layer, wherein the eighth electrode and the light emission control line have an overlapping region in a direction perpendicular to the display panel; and/or
A ninth electrode on the same layer as the reference signal line and electrically connected to the fixed power voltage line, the ninth electrode and the emission control line having an overlapping region in a direction perpendicular to the display panel; and/or
And a tenth electrode on the same layer as the active layer of the display panel and electrically connected to the fixed power voltage line, wherein the tenth electrode and the emission control line have an overlapping region in a direction perpendicular to the display panel.
12. A display device characterized by comprising the display panel according to any one of claims 1 to 11.
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