CN110610675B - Display panel and display device - Google Patents
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- CN110610675B CN110610675B CN201910940069.5A CN201910940069A CN110610675B CN 110610675 B CN110610675 B CN 110610675B CN 201910940069 A CN201910940069 A CN 201910940069A CN 110610675 B CN110610675 B CN 110610675B
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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- 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
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Abstract
The invention discloses a display panel and a display device, wherein a second display area is a normal display area, a first display area is a semi-transparent area, PPI in the first display area is lower than that of the second display area, the first display area is divided into a central area covered by an off-screen sensor and an edge area which is positioned at the edge of the central area and is not covered by the off-screen sensor. Although the marginal area is in the semi-transparent area, the marginal area does not contribute to image acquisition of the sensor under the screen, therefore, the transparent area in the marginal area is used as a signal line compensation area, a compensation capacitor electrically connected with the second type of signal line can be arranged in the marginal area, load unevenness of the first type of signal line and the second type of signal line is compensated, and the screen splitting problem caused by display unevenness around the semi-transparent area is further 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
At present, display panels designed by a full screen are more and more popular with consumers, the full screen is designed by adopting a peripheral ultra-narrow frame, and is combined with a panel framework designed by digging holes in a display area and placing cameras and the like, and the full screen is the panel framework with the highest proportion of the panel display screen.
In order to achieve both display and image acquisition functions, a semi-transparent area in which a camera or other devices are placed is provided with display pixels having a pixel density PPI lower than that of other display areas, compared with a completely transparent area, so as to increase transmittance and achieve a photographing function. Because the signal line can equidistant disconnection before getting into the area of partly permeating, can appear load (RC Loading) difference, lead to showing unevenly between the display area that leads to partly permeating district and periphery to produce the problem that shows the split screen.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which are used for solving the problem that a semi-transparent area in the prior art has display split screens.
An embodiment of the present invention provides a display panel, including: the display panel comprises a first display area and a second display area, wherein the first display area is a semi-transparent area used for arranging an under-screen sensor and is divided into a central area and an edge area, the central area is covered by the under-screen sensor, the edge area and the under-screen sensor are not overlapped with each other, and the central area and the edge area are provided with pixel areas and light-transmitting areas which are alternately arranged;
the display panel includes: a first type signal line extending from the second display region to a pixel region in the first display region, and a second type signal line provided only in the second display region;
and a compensation capacitor electrically connected with the second type signal wire is arranged in the light-transmitting area adjacent to the second type signal wire.
The embodiment of the invention provides a display device, which comprises the display panel provided by the embodiment of the invention and an off-screen sensor positioned below the first display area; the under-screen sensor is covered with the central area of the first display area, and is not overlapped with the edge area of the first display area.
The invention has the following beneficial effects:
in the display panel and the display device provided by the embodiments of the present invention, the second display area is a normal display area, the first display area is a semi-transparent area, the PPI in the first display area is lower than that in the second display area, the first display area is divided into a central area covered by the off-screen sensor, and an edge area located at the edge of the central area and not covered by the off-screen sensor. Although the marginal area is in the semi-transparent area, the marginal area does not contribute to image acquisition of the sensor under the screen, therefore, the transparent area in the marginal area is used as a signal line compensation area, a compensation capacitor electrically connected with the second type of signal line can be arranged in the marginal area, load unevenness of the first type of signal line and the second type of signal line is compensated, and the screen splitting problem caused by display unevenness around the semi-transparent area is further improved.
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 display device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an edge region in a first display region of 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 second type of data line in a display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an edge region in a first display region of a display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of an edge region in a first display region of a display panel according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a compensation capacitor connected to a second type of scan line in a display panel according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an edge region in a first display region of a display panel according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of an edge region in a first display region of a display panel according to an embodiment of the invention;
fig. 10 is a schematic structural diagram of an edge region in a first display region of a display panel according to an embodiment of the present invention.
Detailed Description
At present, in order to realize a full-screen design in a display panel, the number of display pixels in a display area above a camera is reduced, namely PPI is reduced, so that the PPI has increased transmittance and becomes a semi-transparent area, and when the transmittance of the semi-transparent area above the camera is increased to a certain degree, clear imaging can be performed to obtain images. And because the number of display pixels in the semi-transparent area is reduced relative to other normal display areas, signal lines such as data lines and scanning lines can be disconnected at equal intervals before entering the semi-transparent area. That is, some signal lines (first-type signal lines) are wired in both the normal display area and the semi-transmissive area; other signal lines (signal lines of the second type) are wired only in the normal display region and are not wired in the semi-transmissive region. Because the first type signal line and the second type signal line have different loads, and the problem of split display around the semi-transparent area is caused.
The embodiment of the invention provides a display panel and a display device, aiming at the problem that a semi-transparent area in the prior art has display split screen. 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.
As shown in fig. 1 and 2, a display panel according to an embodiment of the present invention includes: the display panel comprises a first display area M and a second display area N, wherein the first display area M is a semi-transparent area used for arranging an under-screen sensor 2 and is divided into a central area M1 and an edge area M2, the central area M1 is covered by the under-screen sensor 2, the edge area M2 and the under-screen sensor are not overlapped with each other, and pixel areas A and light-transmitting areas B which are alternately arranged are arranged in the central area M1 and the edge area M2;
the display panel includes: a first type signal line 100 extending from the second display region N to the pixel region a in the first display region M, and a second type signal line 200 disposed only in the second display region N;
the light-transmitting region B adjacent to the second-type signal line 200 has a compensation capacitor 300 electrically connected to the second-type signal line 200.
Specifically, in the display panel provided in the embodiment of the present invention, the second display region N is a normal display region, the first display region M is a semi-transparent region, and the PPI in the first display region M is lower than that in the second display region N, that is, the pixel density of the display pixels in the first display region M is lower than that in the second display region N. In order to realize the light transmittance of the first display region M, the pixel region a (which may be regarded as a light shielding region) and the light transmitting region B are alternately disposed in the first display region M, and the area ratio of the pixel region a to the light transmitting region B may be set according to an actually required light transmittance, which is not limited herein. In addition, one pixel region a may include a plurality of display pixels, or may include one display pixel, which is not limited herein. Generally, for the pixel design, the pixel region a and the light-transmitting region B are substantially rectangular regions, resulting in the first display region M being also substantially rectangular regions, and the off-screen sensor 2 generally has a circular light-taking lens, so that the first display region M is divided into a central region M1 covered by the off-screen sensor 2 and an edge region M2 located at the edge of the central region M1 and not covered by the off-screen sensor 2. In addition, because the alignment is deviated, in order to ensure that the camera is not shielded by the second display area, some redundant spaces for preventing the alignment deviation are also provided in the space of the semi-transparent area. Therefore, the edge region M2 is in the semi-transmissive region but does not contribute to image acquisition of the under-screen sensor 2, and therefore, the light-transmitting region B in the edge region M2 is used as the signal line compensation region, and the compensation capacitor 300 electrically connected to the second-type signal line 200 can be disposed therein to compensate for load unevenness of the first-type signal line 100 and the second-type signal line 200, thereby improving the screen separation problem caused by display unevenness around the semi-transmissive region.
Optionally, in the display panel provided in the embodiment of the present invention, the compensation capacitor 300 may include at least two capacitors connected in parallel, and the capacitors connected in parallel may increase the capacitance of the compensation capacitor 300 to perform a required capacitance compensation function. And, the shunt capacitance can range upon range of setting to save the occupation space. The capacitance of the compensation capacitor 300 electrically connected to the second-type signal line 200 and the number of parallel capacitors constituting the compensation capacitor need to be determined according to the actual load difference between the first-type signal line 100 and the second-type signal line 200, which is not limited herein. It can be seen that the larger the load difference between the first-type signal line 100 and the second-type signal line 200 is, the larger the capacitance value of the compensation capacitor 300 is required to be.
Specifically, in the display panel improved in the embodiment of the present invention, the signal lines may include Data lines, Scan lines, Emit lines, Scan lines, and the like, and different types of signal lines are different in film layer and wiring direction, so that the film layer where the compensation capacitors corresponding to the different types of signal lines are located and the loaded signals are different. The compensation capacitance setting of a specific signal line is specifically described below.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 3, the first type signal line 100 may include a first type data line 110, and correspondingly, the second type signal line 200 may include a second type data line 210; the first data lines 110 and the second data lines 210 are generally arranged in a vertical direction and a horizontal direction, or vice versa. The first-type data lines 110 extend from the second display region N to the pixel region a in the first display region M to provide data signals for the display pixels of the pixel region a. The second data line 210 is disposed only in the second display region N and does not extend to the pixel region a in the first display region M, and the second data line 210 may be considered to be cut off at the boundary between the first display region M and the second display region N. The first-type data line 110 and the second-type data line 210 are generally disposed on the source-drain metal layer. In fig. 3, the signal lines are illustrated as straight lines for convenience of illustration, and the actual signal lines have a certain line width.
Specifically, as shown in fig. 3, the light-transmitting regions B adjacent to the second type data line 210 are the first type light-transmitting regions B1, the first type light-transmitting regions B1 may be regarded as one or more light-transmitting regions B adjacent to the second type data line 210 in the extending direction, i.e., the vertical direction, and when each light-transmitting region B is small and one light-transmitting region B is insufficient to place the compensation capacitor 300 electrically connected to the second type data line 210, a plurality of adjacent light-transmitting regions B arranged in the vertical direction may be regarded as the first type light-transmitting regions B1 to place the required compensation capacitor 300.
Specifically, as shown in fig. 4, the compensation capacitor 300 electrically connected to the second type data line 210 in the first type light-transmitting region B1 may specifically include: the first compensation capacitor 310 and the second compensation capacitor 320 are stacked, and share the first common electrode plate 301 therebetween. The stacked first compensation capacitor 310 and the stacked second compensation capacitor 320 share the first common electrode plate 301, and they can be arranged in parallel to increase the capacitance of the compensation capacitor 300 electrically connected to the second-type data line 210, so as to ensure that the compensation capacitor 300 is accommodated in the limited space of the first-type light-transmitting area B1.
Generally, an active layer, a gate metal layer, a capacitor metal layer, a source/drain metal layer, and a transparent electrode layer are sequentially stacked on a substrate of a display panel, and an insulating layer is disposed between each two layers; the active layer generally includes an element pattern such as an active layer of each transistor in the display pixel, the gate metal layer generally includes a signal line (such as a Scan line Scan and an Emit) extending in a horizontal direction and an element pattern such as a gate of each transistor in the display pixel, the capacitor metal layer generally includes a pattern of one electrode of the storage capacitor in the display pixel and an electrode connection portion F extending in a horizontal direction and connecting each electrode, the source drain metal layer generally includes an element pattern such as a signal line (such as a Data line Data and a power supply signal line PVDD) extending in a vertical direction and a source drain of each transistor in the display pixel, and the transparent electrode layer generally includes an anode pattern in the display pixel.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 4, the first compensation capacitor 310 may include: a first electrode plate 302 positioned on the gate metal layer, and a first common electrode plate 301 positioned on the capacitance metal layer;
the second compensation capacitor 320 may include: a first common electrode plate 301 positioned on the capacitance metal layer, and a second electrode plate 303 positioned on the source drain metal layer;
the first common electrode plate 301 is electrically connected to the second-type data line 210 located in the source-drain metal layer, and both the first electrode plate 302 and the second electrode plate 303 are electrically connected to the power signal line PVDD located in the source-drain metal layer.
Specifically, the patterns of the first electrode plate 302, the second electrode plate 303 and the first common electrode plate 301 are arranged in the existing metal film layer in the display panel, so that the number of the film layers can be saved, and the utilization rate of the film layers can be improved. In addition, since the first common electrode plate 301 is located on the capacitor metal layer, the first common electrode plate needs to be electrically connected to the second-type data line 210 located on the source-drain metal layer through a via hole. Since the first electrode plate 302 is located at the gate metal layer, the power signal line PVDD located at the source-drain metal layer needs to be electrically connected through a via. The power signal line PVDD is generally applied with a fixed potential, which is different from the data signal potential of the second type data line 210 applied by the first common electrode plate 301, so as to form a compensation capacitance value therebetween.
Specifically, in the display panel according to the embodiment of the present invention, in order to ensure the light transmittance of the first display region M as the semi-transmissive region, the area of one light-transmissive region B is generally larger than one display pixel and generally approximately equal to a plurality of display pixels, and therefore, as shown in fig. 3, one first-type light-transmissive region B1 corresponds to a plurality of second-type data lines 210, that is, a compensation capacitor 300 electrically connected to the plurality of second-type data lines 210 is disposed in one light-transmissive region B. In fig. 3, three compensation capacitors 300 of the second type data line 210 are disposed in one light-transmitting region B for illustration.
Since the first electrode plates 302 of the first compensation capacitors 310 each carry a fixed potential of the power signal line PVDD, alternatively, in the display panel provided in the embodiment of the invention, as shown in fig. 3, the first electrode plates 302 of the first compensation capacitors 310 disposed in the same light-transmitting region B may be connected to each other and form an integral structure, so as to increase the area of the first electrode plates 302, increase the capacitance value, and simplify the complexity of film layer composition.
Since the second electrode plate 303 and the power signal line PVDD are both located in the source-drain metal layer, as shown in fig. 3, in the display panel provided in the embodiment of the present invention, the power signal line PVDD in the second display area N may directly extend to the light-transmitting area B where the second compensation capacitor 320 is located to form the second electrode plate 303. Moreover, the second electrode plates 303 of the second compensation capacitors 320 disposed in the same light-transmitting region B may also be connected to each other to form an integral structure, so as to increase the area of the second electrode plates 303, increase the capacitance, and simplify the complexity of film layer composition.
As the first common electrode plate 301 is located on the capacitor metal layer, and the second-type data line 210 is located on the source drain metal layer, optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 3, the first common electrode plate 301 may extend to the second display region N and be electrically connected to the corresponding second-type data line 210 through the via hole. In addition, the first common electrode plates 301 connected to the different second-type data lines 210 need to be insulated from each other.
Alternatively, in the display panel provided in the embodiment of the present invention, when the required compensation capacitor 300 is larger, as shown in fig. 5, the compensation capacitor 300 electrically connected to the same second type data line 210 may be located in at least two first type light-transmitting regions B1 arranged along the extending direction of the second type data line 210; fig. 5 illustrates an example in which the compensation capacitor 300 electrically connected to the same second-type data line 210 is simultaneously located in two first-type light-transmitting regions B1.
Specifically, since the first electrode plates 302 are located on the gate metal layer, and the Scan lines Scan and Emit located on the horizontally extending wiring of the gate metal layer are located between two first-type light-transmitting regions B1 arranged in the vertical direction, the first electrode plates 302 located in different first-type light-transmitting regions B1 need to be disconnected from each other to avoid signal short circuit or parasitic capacitance with the Scan lines Scan and Emit, and at this time, each first electrode plate 302 may be electrically connected to the adjacent power signal line PVDD, or directly electrically connected to the second electrode plate 303 through a via hole.
The second electrode plates 303 are located in the source and drain electrode layers, and are not short-circuited with the gate metal layer and the capacitor metal layer, so that the second electrode plates 303 located in different first light-transmitting regions B1 can be electrically connected to each other.
Since the first common electrode plates 301 need to be loaded with the data signal potentials of the second type data lines 210, the first common electrode plates 301 located in different first type light-transmitting regions B1 need to be electrically connected to each other through the first winding 41 (which may also be referred to as a first jumper), and the first winding 41 is electrically connected to avoid signal short circuits with other signal lines.
Since the first wire 41 needs to jump over the Scan lines Scan and Emit located in the gate metal layer and the electrode connection portion located in the capacitor metal layer, optionally, in the display panel provided in the embodiment of the present invention, the first wire 41 may be located in the source drain metal layer or in the transparent electrode layer.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 6, the first type signal line 100 may include a first type scan line 120, and correspondingly, the second type signal line 200 may include a second type scan line 220; the first-type scan lines 120 and the second-type scan lines 220 are generally arranged in a horizontal direction and a vertical direction, or vice versa. The first scan lines 120 extend from the second display region N to the pixel region a in the first display region M, and provide scan signals for the display pixels in the pixel region a. The second type scanning lines 220 are disposed only in the second display region N and do not extend to the pixel region a in the first display region M, and the second type scanning lines 220 may be considered to be cut off at the boundary between the first display region M and the second display region N. The first-type scan lines 120 and the second-type scan lines 220 are typically disposed on the gate metal layer.
Specifically, as shown in fig. 6, the light-transmitting regions B adjacent to the second type scanning lines 220 are second type light-transmitting regions B2, the second type light-transmitting regions B2 can be regarded as one or more light-transmitting regions B adjacent to the extending direction of the second type scanning lines 220, i.e., the horizontal direction, and when each light-transmitting region B is small and one light-transmitting region B is insufficient to place the compensation capacitor 300 electrically connected to the second type scanning lines 220, a plurality of adjacent light-transmitting regions B arranged in the horizontal direction can be regarded as second type light-transmitting regions B2 to place the required compensation capacitor 300.
Specifically, as shown in fig. 7, the compensation capacitor 300 electrically connected to the second type scan line 220 in the second type light-transmitting region B2 may specifically include: the third compensation capacitor 330 and the fourth compensation capacitor 340 are stacked, and the third compensation capacitor 330 and the fourth compensation capacitor 340 share the second common electrode plate 304 therebetween. The third compensation capacitor 330 and the fourth compensation capacitor 340, which are stacked, share the second common electrode plate 304, and can be disposed in parallel to increase the capacitance of the compensation capacitor 300 electrically connected to the second-type scan line 220, so as to ensure that the compensation capacitor 300 is accommodated in the limited space of the second-type light-transmitting region B2.
Optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 6 and 7, the third compensation capacitor 330 may include: a third electrode plate 305 located at the active layer, and a second common electrode plate 304 located at the gate metal layer;
the fourth compensation capacitor 340 may include: a second common electrode plate 304 located in the gate metal layer, and a fourth electrode plate 306 located in the capacitor metal layer;
the second common electrode plate 304 is electrically connected to the second-type scan line 220 located in the gate metal layer, and the third electrode plate 305 and the fourth electrode plate 306 are electrically connected to the power signal line PVDD located in the source-drain metal layer.
Specifically, the patterns of the third electrode plate 305, the fourth electrode plate 306 and the second common electrode plate 304 are arranged in the existing metal film layer in the display panel, so that the number of the film layers can be saved, and the utilization rate of the film layers can be improved. Moreover, since the third electrode plate 305 is located on the active layer and the fourth electrode plate 306 is located on the capacitor metal layer, the third electrode plate and the fourth electrode plate are electrically connected to the power signal line PVDD located on the source-drain metal layer through vias. The power signal line PVDD is generally applied with a fixed potential, which is different from the scanning signal potential of the second type scanning line 220 applied by the second common electrode plate 304, so as to form a compensation capacitance value therebetween.
Specifically, in the display panel according to the embodiment of the invention, in order to ensure the light transmittance of the first display region M as the semi-transmissive region, the area of one light-transmissive region B is generally larger than one display pixel and generally approximately equal to a plurality of display pixels, and therefore, one second-type light-transmissive region B2 corresponds to a plurality of second-type scanning lines 220, that is, a plurality of compensation capacitors 300 electrically connected to the second-type scanning lines 220 are disposed in one light-transmissive region B.
Since the third electrode plates 305 of the third compensation capacitors 330 each carry a fixed potential of the power signal line PVDD, alternatively, in the display panel provided in the embodiment of the present invention, the third electrode plates 305 of the third compensation capacitors 330 disposed in the same light-transmitting region B may be connected to each other and form an integral structure, so as to increase the area of the third electrode plates 305, improve the capacitance value, and simplify the complexity of film layer composition; similarly, the fourth electrode plates 306 of the fourth compensation capacitors 340 disposed in the same light-transmitting region B may be connected to each other and form an integral structure, so as to increase the area of the fourth electrode plates 306, improve the capacitance, and simplify the complexity of film layer composition.
Since the second common electrode plate 304 and the second type scan lines 220 are located on the gate metal layer, optionally, in the display panel provided in the embodiment of the present invention, the second type scan lines 220 may directly extend into the light-transmitting region B where the third compensation capacitor 330 is located to form the second common electrode plate 304. In addition, the second common electrode plates 304 connected to the different second-type scan lines 220 need to be insulated from each other.
Alternatively, in the display panel provided in the embodiment of the present invention, when the required compensation capacitor 300 is larger, as shown in fig. 8, the compensation capacitor 300 electrically connected to the same second type scan line 220 may be located in at least two second type light-transmitting regions B2 arranged along the extending direction of the second type scan line 220; fig. 8 illustrates an example in which the compensation capacitor 300 electrically connected to the same second-type scan line 220 is located in two second-type light-transmitting regions B2 at the same time.
Specifically, since the Data line Data and the power signal line PVDD, which are located in the vertical extending wiring of the source-drain metal layer, are located between the two second-type light-transmitting regions B2 arranged in the horizontal direction, and the third electrode plates 305 are located in the active layer, the third electrode plates 305 located in different second-type light-transmitting regions B2 can be electrically connected to each other and form an integral structure, so as to increase the area of the third electrode plates 305, improve the capacitance value, and simplify the complexity of film layer composition; the fourth electrode plates 306 are located on the capacitor metal layer, so that the fourth electrode plates 306 located in different second light-transmitting regions B2 can be electrically connected to each other and form an integral structure, so as to increase the area of the fourth electrode plates 306, improve the capacitance value, and simplify the complexity of film layer composition; the second common electrode plates 304 are located on the gate metal layer, and therefore, the second common electrode plates 304 located in different second light-transmitting regions B2 may be electrically connected to each other and form an integral structure, so as to increase the area of the second common electrode plates 304, increase the capacitance, and simplify the complexity of film layer composition.
Alternatively, in the display panel provided in the embodiment of the present invention, as shown in fig. 9, the light-transmitting regions B adjacent to the second type data lines 210 and the second type scan lines 220 are the third type light-transmitting regions B3, the third type light-transmitting regions B3 may be regarded as the light-transmitting regions B located at the corner positions in the second display region N, and one or more third type light-transmitting regions B3 may be provided, which is not limited herein. The third type of light-transmitting area B3 simultaneously comprises: a compensation capacitor 300 electrically connected to the second type data line 210, and a compensation capacitor 300 electrically connected to the second type scan line 220. For convenience of illustration, only one compensation capacitor 300 connected to the second type data line 210 and only one compensation capacitor 300 connected to the second type scan line 220 are illustrated in fig. 9.
Specifically, it is often necessary to simultaneously provide the compensation capacitors 300 electrically connected to the second type data lines 210 and the compensation capacitors 300 electrically connected to the second type scan lines 220 in the third type light-transmitting regions B3, and therefore, alternatively, in the display panel provided in the embodiment of the present invention, as shown in fig. 10, the compensation capacitors 300 located in different third type light-transmitting regions B3 and electrically connected to the same second type signal line 200 are electrically connected through the second wire 420 (which may also be referred to as a second jumper), and the second wire 420 is electrically connected to avoid signal short circuit with other signal lines. Since the second wire 420 needs to skip the Scan lines Scan and Emit located in the gate metal layer, the Data lines Data and the power signal lines PVDD located in the source-drain metal layer, and the electrode connection portion located in the capacitor metal layer, the second wire 420 may be located in the transparent electrode layer.
Based on the same inventive concept, the embodiment of the invention also provides a display device. 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.
Specifically, an embodiment of the present invention provides a display device, as shown in fig. 1 and fig. 2, including: in the display panel 1 provided in the embodiment of the present invention, the display panel 100 includes a first display area M and a second display area N, where the first display area M is a semi-transparent area for setting a sensor under a screen; the display device further comprises an off-screen sensor 2 located below the first display area M; the off-screen sensor 2 is covered with the central region M1 of the first display region M and does not overlap with the edge region M2 of the first display region M.
In the display panel and the display device provided in the embodiments of the present invention, the second display area is a normal display area, the first display area is a semi-transparent area, the PPI in the first display area is lower than that in the second display area, the first display area is divided into a central area covered by the off-screen sensor, and an edge area located at an edge of the central area and not covered by the off-screen sensor. Although the marginal area is in the semi-transparent area, the marginal area does not contribute to image acquisition of the sensor under the screen, therefore, the transparent area in the marginal area is used as a signal line compensation area, a compensation capacitor electrically connected with the second type of signal line can be arranged in the marginal area, load unevenness of the first type of signal line and the second type of signal line is compensated, and the screen splitting problem caused by display unevenness around the semi-transparent area is further improved.
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 (14)
1. A display panel, comprising: the display panel comprises a first display area and a second display area, wherein the first display area is a semi-transparent area used for arranging an under-screen sensor and is divided into a central area and an edge area, the central area is covered by the under-screen sensor, the edge area and the under-screen sensor are not overlapped with each other, and the central area and the edge area are provided with pixel areas and light-transmitting areas which are alternately arranged;
the display panel includes: a first type signal line extending from the second display region to a pixel region in the first display region, and a second type signal line provided only in the second display region;
a compensation capacitor electrically connected with the second type signal wire is arranged in the light-transmitting area adjacent to the second type signal wire;
the second type signal line comprises a second type data line; the light transmission area adjacent to the second type data line is a first type light transmission area, and the compensation capacitor electrically connected with the second type data line in the first type light transmission area comprises: the first compensation capacitor and the second compensation capacitor are stacked and share a first common electrode plate between the first compensation capacitor and the second compensation capacitor;
the first compensation capacitor includes: a first electrode plate, and the first common electrode plate;
the second compensation capacitor includes: the first common electrode plate and the second electrode plate;
the first common electrode plate is electrically connected with the second type of data line, and the first electrode plate and the second electrode plate are both electrically connected with a power signal line;
the compensation capacitors electrically connected with the same second type data line are positioned in at least two first type light-transmitting areas arranged along the extending direction of the second type data line;
the first electrode plates in different first light-transmitting areas are mutually disconnected, the second electrode plates in different first light-transmitting areas are mutually electrically connected, and the first common electrode plates in different first light-transmitting areas are mutually electrically connected through a first winding.
2. The display panel according to claim 1, wherein the first electrode plate is located at a gate metal layer; the first common electrode plate is positioned on the capacitor metal layer; the second electrode plate is positioned on the source drain metal layer;
the second data line is located in the source-drain metal layer, and the power signal line is located in the source-drain metal layer.
3. The display panel of claim 1, wherein the first electrode plates of the first compensation capacitors disposed in the same light-transmitting region are connected to each other and formed as a unitary structure.
4. The display panel according to claim 1, wherein the power supply signal line in the second display region extends to the second electrode plate in the light transmitting region where the second compensation capacitor is located.
5. The display panel according to claim 1, wherein the first common electrode plate extends to the second display region to be electrically connected with the corresponding second type data line.
6. The display panel of claim 1, wherein the first routing lines are located in a source drain metal layer or in a transparent electrode layer.
7. The display panel according to claim 1, wherein the second-type signal lines include second-type scan lines; the light-transmitting area adjacent to the second type of scanning line is a second type of light-transmitting area, and the compensation capacitor electrically connected with the second type of scanning line in the second type of light-transmitting area comprises: the third compensation capacitor and the fourth compensation capacitor are stacked and share the second common electrode plate between the third compensation capacitor and the fourth compensation capacitor.
8. The display panel of claim 7, wherein the third compensation capacitance comprises: the third electrode plate is positioned on the active layer, and the second common electrode plate is positioned on the grid metal layer;
the fourth compensation capacitor includes: the second common electrode plate is positioned on the grid metal layer, and the fourth electrode plate is positioned on the capacitance metal layer;
the second common electrode plate is electrically connected with the second type scanning line positioned on the grid metal layer, and the third electrode plate and the fourth electrode plate are electrically connected with the power signal line positioned on the source drain metal layer.
9. The display panel according to claim 8, wherein the third electrode plates of the respective third compensation capacitors disposed in the same light-transmitting region are connected to each other and form an integral structure; and the fourth electrode plates of the fourth compensation capacitors arranged in the same light-transmitting area are mutually connected and form an integral structure.
10. The display panel according to claim 8, wherein the second scan line extends to a light-transmitting region where the third compensation capacitor is located to form the second common electrode plate.
11. The display panel according to claim 8, wherein compensation capacitors electrically connected to the same second type scanning lines are located in at least two second type light-transmitting regions arranged along an extending direction of the second type scanning lines;
the third electrode plates in different second light-transmitting areas are electrically connected with each other to form an integral structure, the fourth electrode plates in different second light-transmitting areas are electrically connected with each other to form an integral structure, and the second common electrode plates in different second light-transmitting areas are electrically connected with each other to form an integral structure.
12. The display panel according to claim 8, wherein the light-transmitting regions adjacent to both the second type data lines and the second type scan lines are third type light-transmitting regions, and include both: the compensation capacitor is electrically connected with the second type data line, and the compensation capacitor is electrically connected with the second type scanning line.
13. The display panel of claim 12, wherein the compensation capacitors in different third type of light-transmitting regions electrically connected to the same second type of signal line are electrically connected through a second wire, and the second wire is located in a transparent electrode layer.
14. A display device comprising the display panel according to any one of claims 1 to 13, and an off-screen sensor located below the first display region; the under-screen sensor is covered with the central area of the first display area, and is not overlapped with the edge area of the first display area.
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| CN114999340B (en) * | 2019-12-31 | 2023-08-22 | 武汉天马微电子有限公司 | Display panel and display device |
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| CN111192909B (en) * | 2020-01-09 | 2023-06-02 | 武汉华星光电半导体显示技术有限公司 | Active matrix organic light emitting diode display panel |
| US11393890B2 (en) | 2020-01-09 | 2022-07-19 | Wuhan China Optoelectronics Semiconductor Display Technology Co., Ltd. | Active matrix organic light-emitting diode display panel with compensation capacitor |
| TWI820834B (en) * | 2020-03-16 | 2023-11-01 | 瑞鼎科技股份有限公司 | Method of designing display panel structure |
| KR20210116832A (en) * | 2020-03-17 | 2021-09-28 | 삼성디스플레이 주식회사 | Display device |
| CN111489655A (en) * | 2020-04-21 | 2020-08-04 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN111490089B (en) * | 2020-04-24 | 2023-04-07 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN115116393B (en) * | 2020-07-20 | 2024-05-28 | 武汉天马微电子有限公司 | Display panel and display device |
| CN114120816A (en) * | 2020-08-28 | 2022-03-01 | 群创光电股份有限公司 | Display panel and electronic device |
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