CN116056516A - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN116056516A
CN116056516A CN202310110620.XA CN202310110620A CN116056516A CN 116056516 A CN116056516 A CN 116056516A CN 202310110620 A CN202310110620 A CN 202310110620A CN 116056516 A CN116056516 A CN 116056516A
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CN
China
Prior art keywords
signal line
sub
pixel
data
power signal
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Pending
Application number
CN202310110620.XA
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Chinese (zh)
Inventor
王选芸
许文萃
夏志强
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Xiamen Tianma Display Technology Co Ltd
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Xiamen Tianma Display Technology Co Ltd
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Priority to CN202310110620.XA priority Critical patent/CN116056516A/en
Publication of CN116056516A publication Critical patent/CN116056516A/en
Pending legal-status Critical Current

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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]
    • G09G3/3225—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] using an active matrix
    • G09G3/3233—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] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0202—Addressing of scan or signal lines
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display

Abstract

The invention discloses a display panel and a display device, and relates to the technical field of display. The display panel comprises a plurality of sub-pixels, data signal lines and power signal lines which are arranged in an array manner; the data signal line and the power signal line extend along the column direction and are positioned between adjacent sub-pixels; the sub-pixels positioned on two sides of the same power signal line are electrically connected with the power signal line; the same data signal line is electrically connected with the sub-pixels with the same luminous color; along the direction perpendicular to the light emitting surface of the display panel, the projections of the power signal line and the data signal line are not overlapped. According to the embodiment provided by the invention, the same power signal line is electrically connected with the sub-pixels at the two sides of the extending direction of the power signal line, so that the arrangement quantity of the power signal lines is reduced, the occupied space is reduced, the distance between the power signal line and the data signal line is further increased through the fact that the power signal line and the data signal line are not overlapped, the parasitic capacitance between the power signal line and the data signal line is further reduced, and the display effect is improved.

Description

Display panel and display device
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
With the development of multimedia, display devices are becoming more and more important. Accordingly, there is an increasing demand for various types of display devices, particularly in the field of smart phones, ultra-high frequency driving display, low power consumption driving display, and low frequency driving display, which are all current and future development demands.
In the related art, in order to save costs, demux architecture is generally used. However, in demux structural design, a dual data signal line structure is often adopted, which causes an increase in parasitic capacitance between the power signal line and the data signal line, and crosstalk is generated, which affects the display effect.
Disclosure of Invention
In view of this, the present invention provides a display panel and a display device, which reduce parasitic capacitance between a power signal line and a data signal line, avoid winding, and improve display effect.
In a first aspect, the present invention provides a display panel, including a plurality of sub-pixels arranged in an array, a data signal line electrically connected to at least one of the sub-pixels, and a power signal line;
the data signal line and the power signal line extend along the column direction and are positioned between adjacent sub-pixels;
the subpixels positioned on two sides of the same power signal line are electrically connected with the power signal line;
the same data signal line is electrically connected with the sub-pixels with the same luminous color;
along the direction perpendicular to the light emitting surface of the display panel, the projections of the power signal line and the data signal line are not overlapped.
In a second aspect, the present invention provides a display device, including the display panel provided in the first aspect of the present invention.
Compared with the prior art, the display panel and the display device provided by the invention have the advantages that at least the following effects are realized:
in the embodiment provided by the invention, the power signal lines and the data signal lines are parallel to each other and extend along the column direction. According to the embodiment provided by the invention, the same power signal line is electrically connected with the sub-pixels at the two sides of the extending direction of the power signal line, so that the arrangement quantity of the power signal lines is reduced, the occupied space is reduced, the distance between the power signal line and the data signal line in the direction parallel to the light emitting surface of the display panel is further increased, the parasitic capacitance between the power signal line and the data signal line is reduced, and the display effect is improved. According to the embodiment of the invention, the power signal line and the data signal line are not overlapped in the direction vertical to the light emitting surface of the display panel, so that the distance between the power signal line and the data signal line in the direction vertical to the light emitting surface of the display panel is increased, the parasitic capacitance between the power signal line and the data signal line is reduced, and the display effect is improved.
Of course, it is not necessary for any one product embodying the invention to achieve all of the technical effects described above at the same time.
Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic top view of a display panel according to the present invention;
FIG. 2 is a schematic top view of another display panel according to the present invention;
FIG. 3 is a schematic diagram of a pixel unit according to the present invention;
FIG. 4 is a schematic diagram of another pixel unit according to the present invention;
FIG. 5 is a schematic diagram of a driving circuit according to the present invention;
FIG. 6 is a schematic top view of another display panel according to the present invention;
fig. 7 is a schematic diagram of a film structure of a display panel according to the present invention;
FIG. 8 is a schematic diagram of a film structure of another display panel according to the present invention;
fig. 9 is a top view of a display device according to an embodiment of the invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the related art, in order to save costs, demux architecture is generally used. However, in demux structural design, a dual data signal line structure is often adopted, which causes an increase in parasitic capacitance between the power signal line and the data signal line, and crosstalk is generated, which affects the display effect.
In order to solve the above technical problems, an embodiment of the present invention provides a display panel, as shown in fig. 1, and fig. 1 is a schematic top view structure of the display panel. The embodiment of the present invention provides a display panel 100, including: a plurality of sub-pixels 00 arranged in an array, a data signal line data and a power signal line PVDD electrically connected to at least one sub-pixel 00;
the data signal line data and the power signal line PVDD each extend in the column direction y and are located between adjacent sub-pixels 00;
the sub-pixels 00 positioned at two sides of the same power supply signal line PVDD are electrically connected with the power supply signal line PVDD;
the same data signal line data is electrically connected with the sub-pixel 00 of the same light emitting color;
in a direction perpendicular to the light emitting surface of the display panel 100, the projections of the power signal line PVDD and the data signal line data do not overlap.
It is understood that the display panel 100 includes a plurality of sub-pixels 00 arranged in an array. Each sub-pixel 00 is capable of providing one emission color, and the emission intensity of each sub-pixel 00 is controllable. Therefore, the plurality of sub-pixels 00 arranged in an array may constitute different display screens by different light emission colors and different light emission intensities.
Further, the sub-pixel 00 includes a driving circuit, and the display panel 100 supplies a plurality of driving signals for driving the driving circuit of the sub-pixel 00 so that the light emitting element in the driving circuit emits light. Specifically, the driving signal includes at least a power signal and a data signal. Wherein the power signal is provided by a power line number line PVDD and the data signal is provided by a data signal line data.
Further, a plurality of sub-pixels 00 are arrayed in the row direction x and the column direction y. The row direction x and the column direction y intersect. The power signal line PVDD and the data line data each extend in the column direction y and are located between adjacent sub-pixels 00. The same power supply signal line PVDD is electrically connected to the sub-pixels 00 disposed on both sides thereof. In other words, the same power signal line PVDD is electrically connected to the two rows of subpixels 00 on both sides thereof, and provides a power signal thereto. The two rows of subpixels 00 share the same power signal line PVDD, and the number of power signal lines PVDD can be reduced. Further, the display panel 100 can provide more wiring space, and the distance between the power signal line PVDD and the data signal line data can be increased, so that parasitic capacitance between the power signal line PVDD and the data signal line data can be reduced, and the display effect can be improved.
On the other hand, the data signal line data also extends in the column direction y and is parallel to the power signal line PVDD. The same data signal line data is electrically connected to the same emission color sub-pixel 00 in the same column, and supplies a data signal thereto. The data signal is used to control the light emission intensity of the sub-pixel 00. The light rays with different luminous colors and different luminous intensities can be mixed into different colors so as to form a display picture.
Further, in the direction perpendicular to the light emitting surface of the display panel 100, the projections of the power signal line PVDD and the data signal line data do not overlap, that is, the portions of the power signal line PVDD and the data signal line data that do not overlap in the direction perpendicular to the light emitting surface of the display panel 100. In this way, parasitic capacitance between the power supply signal line PVDD and the data signal line data can be further reduced.
In the embodiment provided by the present invention, the power supply signal line PVDD and the data signal line data are parallel to each other and each extend in the column direction y. The embodiment provided by the invention reduces the arrangement quantity of the power signal lines PVDD and reduces the occupied space by electrically connecting the same power signal line PVDD with the sub-pixels 00 at two sides of the extending direction of the same power signal line PVDD, thereby increasing the distance between the power signal line PVDD and the data signal line data in the direction parallel to the light emitting surface of the display panel 100, reducing the parasitic capacitance between the power signal line PVDD and the data signal line data and improving the display effect. In the embodiment of the invention, the power signal line PVDD and the data signal line data are not overlapped in the direction perpendicular to the light emitting surface of the display panel 100, so that the distance between the power signal line PVDD and the data signal line data in the direction perpendicular to the light emitting surface of the display panel 100 is increased, the parasitic capacitance between the power signal line PVDD and the data signal line data is reduced, and the display effect is improved.
In an alternative embodiment of the present invention, reference is made to fig. 2 to 4, wherein fig. 2 is a schematic top view of another display panel provided by the present invention; FIG. 3 is a schematic diagram of a pixel unit according to the present invention; fig. 4 is a schematic structural diagram of another pixel unit according to the present invention. The plurality of sub-pixels 00 constitute at least one pixel unit 10;
a plurality of pixel unit arrays 10 are arranged, and the pixel units 10 at least comprise a first color sub-pixel 01, a second color sub-pixel 02 and a third color sub-pixel 03;
along the column direction y, the first color sub-pixel 01 is adjacent to the second color sub-pixel 02;
along the row direction x, the third color subpixel 03 is adjacent to the first color subpixel 01 or, alternatively, to the second color subpixel 02;
the emission colors of the first color sub-pixel 01, the second color sub-pixel 02, and the third color sub-pixel 03 are all different.
It will be appreciated that one pixel cell 10 includes a plurality of sub-pixels 00. In the embodiment provided by the present invention, one pixel unit 10 includes 4 sub-pixels 00. Specifically, at least the first color sub-pixel 01, the second color sub-pixel 02, and the third color sub-pixel 03 are included. The emission colors of the first color sub-pixel 01, the second color sub-pixel 02 and the third color sub-pixel 03 are all different, and it is exemplified that the emission color of the first color sub-pixel 01 may be red, the emission color of the second color sub-pixel may be blue, and the emission color of the third color sub-pixel may be green. The red, green and blue are three primary colors in optics, and can be mixed into different colors according to different luminous intensities. By way of example, red light and green light are mixed at a luminous intensity of 1:1, and yellow light can be obtained.
Further, in the column direction y, the first color sub-pixel 01 and the second color sub-pixel 02 are adjacent, and in the row direction x, the first color sub-pixel 01 is adjacent to the third color sub-pixel 03, or the second color sub-pixel 02 is adjacent to the third color sub-pixel 03. That is, in the embodiment provided by the present invention, the array arrangement of 4 sub-pixels 00 included in the pixel unit 10 is rectangular. Wherein the first color sub-pixel 01 and the second color sub-pixel 02 are arranged in the same column, and the first color sub-pixel 01 and the second color sub-pixel 02 are alternately arranged. The third color sub-pixels 03 are arranged in a column. In the embodiment provided by the present invention, the third color sub-pixel 03 whose emission color is green includes two. Since green is in the middle of the human visible spectrum, the eye is most sensitive to this. The provision of two third color sub-pixels 03 can thus enhance the brightness of the display.
In the embodiment provided by the invention, the pixel unit 10 is the smallest repeating unit, and a plurality of pixel units 10 are arranged in an array. Each pixel unit 10 includes at least a first color sub-pixel 01, a second color sub-pixel 02, and a third color sub-pixel 03 that are not used for the emission color. The pixel unit 10 displays different colors by mixing different colors and different intensities of light rays of the first color sub-pixel 01, the second color sub-pixel 02 and the third color sub-pixel 03, so as to form a display picture. In the pixel unit 10, the first color sub-pixel 01 and the second color sub-pixel 02 are located in the same column along the column direction y, and the third color sub-pixel 03 is located in the same column. This can facilitate the data line number data extending in the column direction y to be electrically connected to the sub-pixel 00 of the same emission color.
In an alternative embodiment of the present invention, referring to fig. 5, fig. 5 is a schematic structural diagram of a driving circuit provided by the present invention. The driving circuit 031 of the third color sub-pixel 03 is symmetrical to the driving circuit 011 of the first color sub-pixel 01, or to the driving circuit 021 of the second color sub-pixel 02 with respect to the power supply signal line PVDD.
It is understood that the sub-pixel 00 includes a driving circuit that controls the light emitting element to emit light according to the driving signal. In an exemplary embodiment of the present invention, the driving circuit includes a driving transistor M0 and a plurality of switching transistors, the driving transistor M0 is used for generating current, driving the light emitting element D to emit light, and the switching transistors are used for turning on or off the circuit; the first power supply signal end is electrically connected with the power supply signal line PVDD and used for providing a first voltage signal for the driving circuit, and the second power supply signal end is used for providing a second voltage signal. The data signal terminal Vdata is connected to the data signal line data and is used for providing a data signal to the driving circuit. The driving circuit further comprises a reset signal end, a light-emitting control signal end, a first scanning signal end, a second scanning signal end and the like. The reset signal end is used for providing a reset signal, eliminating voltage residues of the driving transistor M0 and the light-emitting element D which emit light last time, and guaranteeing the light-emitting effect. The light-emitting control signal end is used for providing a light-emitting control signal, the first scanning signal end is used for providing a first scanning signal, and the second scanning signal end is used for providing a second scanning signal. The light-emitting control signal, the first scanning signal and the second scanning signal are used for controlling the on or off of the switching transistor. It should be noted that the drawings and the above description are only one possible embodiment provided by the present invention, and the structure of the driving circuit is not limited thereto.
Further, in the row direction x, the third color sub-pixel 03 is adjacent to the first color sub-pixel 02, or adjacent to the second color sub-pixel 02. Since the sub-pixels located at both sides of the same power line number line PVDD are electrically connected to the power signal line PVDD, the driving circuits of the sub-pixel 00 located at both sides of the power signal line PVDD, for example, the driving circuit 011 of the first color sub-pixel 01 and the driving circuit 031 of the third color sub-pixel 03 are symmetrical with respect to the power signal line PVDD, or the driving circuit 021 of the second color sub-pixel 02 and the driving circuit 031 of the third color sub-pixel 03 are symmetrical with respect to the power signal line PVDD.
In the embodiment provided by the present invention, the driving circuit 031 of the third color sub-pixel 03 is symmetrical to the driving circuit 011 of the first color sub-pixel 01, or the driving circuit 021 of the second color sub-pixel 02 with respect to the power signal line PVDD. Thus, the connection of the driving circuit and the power signal wire is facilitated, the wiring length is reduced, and the production process is simplified.
In an alternative embodiment of the present invention, as shown in fig. 3 or 4, the data signal line data includes at least a first data line data1, a second data line data2, a third data line data3, and a fourth data line data4 that are parallel to each other;
the first data line data1 and the second data line data2 are respectively positioned at two opposite sides of the first color sub-pixel 01 and/or the second color sub-pixel 02;
the first data line data1 is electrically connected with the first color sub-pixel 01, and the second data line data2 is electrically connected with the second color sub-pixel 02;
the third data line data3 and the fourth data line data4 are respectively positioned at two opposite sides of the third color sub-pixel 03;
the third data line data3 is electrically connected to the third color sub-pixel 03 adjacent to the second color sub-pixel 02, and the fourth data line data4 is electrically connected to the third color sub-pixel 03 adjacent to the first color sub-pixel 01.
It is understood that the data signal line data extends in the column direction y and is located between the sub-pixels 00. The data signal line data at least comprises a first data line data1, a second data line data2, a third data line data3 and a fourth data line data4.
Further, the first data line data1, the second data line data2, the third data line data3, and the fourth data line data4 are sequentially arranged in the column direction x. The first data line data1 is positioned at one side of the first color sub-pixel 01 and is electrically connected with the first color sub-pixel 01 positioned in the same column; the second data line data2 is located at one side of the second color sub-pixel 02 and is electrically connected to the second color sub-pixels 02 located in the same column. The first data line data1 and the second data line data2 are located on opposite sides of the first color subpixel 01 or the second color subpixel 02, respectively. The third data line data3 and the fourth data line data4 are respectively located at two sides of the third color sub-pixel 03, and the third data line data3 is located at one side of the third color sub-pixel 03 near the second data line data 2. The third data line data3 and the fourth data line data4 are each for providing data signals to the third color subpixel 03. Since the number of the third color sub-pixels 03 is twice as large as that of the first color sub-pixels 01 or the second color sub-pixels 02, the number of the data signal lines data for supplying the data signals to the third color sub-pixels 03 is also twice as large as that of the data line number lines data for supplying the data signals to the first color sub-pixels 01 or the second color sub-pixels 02, ensuring that the load of each data signal line data is the same.
In the embodiment provided by the invention, the data signal lines data comprise a plurality of data lines and extend in the column direction y in parallel with each other. The data signal line data includes a first data line data1, a second data line data2, a third data line data3, and a fourth data line data4, which are electrically connected to the first color sub-pixel 01, the second color sub-pixel 02, and the third color sub-pixel 03, respectively, to supply data signals thereto. The data of the data lines parallel to each other can be conveniently wired and the production process is simplified.
In an alternative embodiment provided by the present invention, with continued reference to fig. 3 and 4, the power signal line PVDD is located between the second data line data2 and the third data line data 3;
the power supply signal line PVDD is electrically connected to the first color sub-pixel 01, the second color sub-pixel 02, and the third color sub-pixel 03.
It will be appreciated that the pixel cell 10 includes 4 data signal lines data and 1 power signal line, the power signal line PVDD being required to provide a power signal to the pixels of the pixel cell 10. Thus, the power signal line PVDD is located between the second data line data2 and the third data line data 3. In this way, the power supply signal line PVDD is electrically connected to the first color sub-pixel 01, the second color sub-pixel 02, and the third color sub-pixel 03.
Since the pixel units 10 are arranged in an array, the plurality of pixel units 10 located in the same column direction y share the power supply signal line PVDD and the data line number line data. That is, the same power supply signal line PVDD is electrically connected to the plurality of sub-pixels 00 of the plurality of pixel units 10 located in the same column; the same data signal line data is electrically connected to a plurality of subpixels 00 having the same emission color in the same column.
In the embodiment provided by the present invention, the power supply signal line PVDD is located between the second data line data2 and the third data line data 3. The power supply signal line PVDD is made to have the same distance from the plurality of sub-pixels 00 in the pixel unit 10, so that the power supply signal line PVDD can be electrically connected to the plurality of sub-pixels 00, and wiring is simplified.
In an alternative embodiment of the present invention, referring to fig. 6, fig. 6 is a schematic top view of another display panel provided by the present invention. The projected area of the end of the power signal line PVDD is larger than the projected area of the middle of the power signal line PVDD in the direction perpendicular to the light-emitting surface of the display panel 100;
the end portion of the power signal line PVDD is at least partially located in the non-display area NA of the display panel 10.
It is understood that the display panel 100 includes a display area AA and a non-display area NA surrounding the display area AA. The power signal lines PVDD extend along the column direction y, and end portions of the power signal lines PVDD are at least partially located in the non-display area NA, and middle portions of the power signal lines PVDD are at least partially located in the display area AA. The projected area of the end of the power signal line PVDD is larger than the projected area of the middle of the power signal line PVDD in a direction perpendicular to the light emitting surface of the display panel 100. That is, the power signal lines PVDD are formed along the extension lines of the power signal lines PVDD, and the width of the power signal lines PVDD in the middle is smaller than that of the power signal lines PVDD at the ends.
In the embodiment provided by the invention, the power signal line PVDD is subjected to graphical design, specifically, the projection area of the middle of the power signal line PVDD is smaller than that of the end part, so that the space occupied by the power signal line PVDD can be further reduced, the distance between the power signal line PVDD and the data signal line data is increased, the parasitic capacitance is reduced, and the display effect is improved. At the same time, it is also possible to provide an arrangement space for other devices.
In an alternative embodiment provided by the present invention, with continued reference to fig. 6, the power signal line PVDD includes at least a first sub-segment P1, a second sub-segment P2, and a third sub-segment P3;
the second sub-section P2 is connected with one end of the first sub-section P1, and the third sub-section P3 is connected with one end of the second sub-section P2, which is far away from the first sub-section P1;
the width of the projection of the third subsection P3 is larger than that of the projection of the first subsection P1 along the direction perpendicular to the light emitting surface of the display panel 10;
the width of the projection of the end of the second sub-segment P2 connected with the first sub-segment P1 is the same as the width of the projection of the first sub-segment P1, the width of the projection of the second sub-segment P2 gradually increases from the end connected with the first sub-segment P1 to the end connected with the third sub-segment P3, and the width of the projection of the end of the second sub-segment P2 connected with the third sub-segment P3 is the same as the width of the projection of the third sub-segment P3.
It should be understood that the power signal lines PVDD include at least three sections with different widths, and the width in this embodiment refers to the width of the projection of the power signal lines PVDD perpendicular to the light emitting surface direction of the display panel 100.
Specifically, the power supply signal line PVDD includes at least a first sub-segment P1, a second sub-segment P2, and a third sub-segment P3. In a direction parallel to the display panel 100, the first, second and third subsections P1, P2 and P3 are sequentially connected along the direction in which the display area AA points to the non-display area NA. The second and third subsections P2 and P3 are located at the ends of the power signal line PVDD, and the first subsection P1 is located in the middle of the power signal line PVDD.
Further, the width of the projection of the first sub-segment P1 is smaller than the width of the projection of the third sub-segment P3 in a direction perpendicular to the display panel 100. Since the second sub-segment P2 connects the first sub-segment P1 and the third sub-segment P3, the width of the projection of the end of the second sub-segment P2 near the first sub-segment P1 is the same as the width of the projection of the first sub-segment P1, and the width of the projection of the end of the second sub-segment P2 near the third sub-segment P3 is the same as the width of the projection of the third sub-segment P3. The width of the projection of the second sub-segment P2 smoothly transitions from the end near the first sub-segment P1 to the end near the third sub-segment P3.
It should be noted that, both ends of the first sub-segment P1 are connected with the second sub-segment P2, and one ends of the two second sub-segments P2 facing away from the first sub-segment P1 are connected with the third sub-segment P3. That is, the power supply signal line PVDD has a structure with both ends wide and a middle narrow along the extending direction of the power supply signal line PVDD.
In the embodiment of the invention, the power signal line PVDD includes a plurality of sub-segments, wherein the first sub-segment P1 is located in the display area AA of the display panel 100, the second sub-segment P2 and the third sub-segment P3 are sequentially connected to one end of the first sub-segment P1, and the third sub-segment P3 is at least partially located in the non-display area NA of the display panel 100. The width of the projection of the first sub-segment P1 is smaller than the width of the projection of the third sub-segment P3 in a direction perpendicular to the light emitting surface of the display panel 100, and the width of the projection of the second sub-segment P2 is gradually changed, so that the first sub-segment P1 and the third sub-segment P3 are connected. According to the embodiment provided by the invention, the power signal line PVDD is subjected to graphical design, so that the wiring space of the power signal line PVDD is reduced, the distance between the power signal line PVDD and the data signal line data is increased, and the parasitic capacitance is further reduced. While also providing more room for placement of other devices.
In an alternative embodiment of the present invention, referring to fig. 7, fig. 7 is a schematic diagram of a film structure of a display panel provided by the present invention. Along a direction perpendicular to the light emitting surface of the display panel 100, the display panel 100 includes at least a light emitting layer 101, an array layer 102, and a substrate 103;
the array layer 102 is located on one side of the substrate 101;
the light emitting layer 101 is located on a side of the array layer 102 facing away from the substrate 101;
the power signal line PVDD and the data signal line data are both located at the array layer 102, and the power signal line PVDD is disposed at the same layer as the data signal line data.
It is understood that the display panel 100 includes a plurality of functional layers, and the substrate 103, the array layer 102, and the light emitting layer 101 are sequentially stacked along the light emitting surface of the display panel 100. In particular, the substrate 103 is used to provide support and to provide a planar surface. The array layer 102 is located on one side of the substrate 103, and the array layer 102 is used for arranging wiring such as a driving circuit. The light emitting layer 101 is located on a side of the array layer 101 facing away from the substrate 101, the light emitting layer 101 being used for arranging light emitting elements. The display panel 100 may further include an encapsulation layer (not shown in the drawing) on a side of the light emitting layer 101 facing away from the array layer 102.
Further, both the power signal line PVDD and the data signal line data are located at the array layer 102. The array layer 102 includes a plurality of film layers, and in the embodiment provided by the present invention, the power signal line PVDD and the data signal line data are located in the same film layer. The film layer may be the first metal routing layer M1. The power signal line PVDD and the data signal line data are both located in the first metal wiring layer M1, and the extending directions of the power signal line PVDD and the data signal line data are parallel to each other.
In the embodiment provided by the present invention, power signal line PVDD and data line number line data are located at the same layer of array layer 102. The driving circuit of the sub-pixel 00 is also located in the array layer 102. The power supply signal line PVDD and the data signal line data are located between the sub-pixels 00, so that the power supply signal line PVDD and the data signal line data are electrically connected to the driving circuit of the sub-pixels 00.
In an alternative embodiment of the present invention, referring to fig. 8, fig. 8 is a schematic diagram of a film structure of another display panel provided by the present invention. Along the direction perpendicular to the light-emitting surface of the display panel, the display panel at least comprises a light-emitting layer 101, an array layer 102 and a substrate 103;
the array layer 102 is located on one side of the substrate 103;
the light emitting layer 101 is located on a side of the array layer 102 facing away from the substrate 101;
the power signal line PVDD and the data signal line data are both located in the array layer 102, and the power signal line PVDD and the data signal line data are not exactly located in the same layer.
It is understood that the display panel 100 includes a plurality of functional layers, and the substrate 103, the array layer 102, and the light emitting layer 101 are sequentially stacked along the light emitting surface of the display panel 100. In particular, the substrate 103 is used to provide support and to provide a planar surface. The array layer 102 is located on one side of the substrate 103, and the array layer 102 is used for arranging wiring such as a driving circuit. The light emitting layer 101 is located on a side of the array layer 101 facing away from the substrate 101, the light emitting layer 101 being used for arranging light emitting elements. The display panel 100 may further include an encapsulation layer (not shown in the drawing) on a side of the light emitting layer 101 facing away from the array layer 102.
Further, both the power signal line PVDD and the data signal line data are located at the array layer 102. The array layer 102 includes a plurality of film layers, and in the embodiment provided by the present invention, the power signal line PVDD and the data signal line data are at least partially located in different film layers. For example, the data line number line data may be located at the first metal trace layer M1, and the power signal line PVDD may be located at the first metal trace layer M1 and the second metal trace layer M2. In a direction perpendicular to the light emitting surface of the display panel 100, the projection of the power signal line PVDD at the first metal wiring layer M1 and the projection of the power signal line PVDD at the second metal wiring layer M2 do not overlap with the projection of the data signal line data.
In the embodiment provided by the present invention, the power signal line PVDD and the data line number line data are located at least partially at different layers of the array layer 102. In the direction perpendicular to the light emitting surface of the display panel 100, any portion of the power signal line PVDD does not overlap with the projection of the data signal line data, so that the distance between the power signal line PVDD and the data signal line data can be further increased, parasitic capacitance can be reduced, and the display effect can be improved.
Alternatively, the display panel provided in this embodiment may be a display panel adopting an organic light emitting diode display technology, that is, an OLED display panel, where the basic structure of the OLED display panel generally includes a hole transport layer, a light emitting layer, and an electron transport layer. When a power supply supplies a proper voltage, holes of the anode and electrons of the cathode are combined in the light-emitting layer to generate light. Compared with the liquid crystal display panel, the OLED display panel has the characteristics of high visibility and high brightness, and is more power-saving, light in weight and thin in thickness.
Based on the same inventive concept, the invention also provides a display device, and referring to fig. 9, fig. 9 is a top view of the display device according to the embodiment of the invention. The display device 200 includes the display panel 100 in any of the embodiments described above.
The display device 200 provided in the embodiment of the invention may be any electronic device with a display function, such as a touch display screen, a mobile phone, a tablet computer, a notebook computer, an electronic book or a television. The display device 200 provided in the embodiment of the present invention has the beneficial effects of the display panel 100 provided in the embodiment of the present invention, and the specific description of the display panel 100 in the above embodiments may be referred to in the embodiments, which is not repeated here.
It will be appreciated that fig. 9 illustrates only one shape of the display device 200 by way of example of a rectangular structure, and that in some other embodiments of the present invention, the display device 200 may also be embodied as a rounded rectangle, a circle, an ellipse, or any other feasible shape, which is not particularly limited by the present invention.
In summary, the display panel and the display device provided by the invention at least realize the following beneficial effects:
in the embodiment provided by the invention, the power signal lines and the data signal lines are parallel to each other and extend along the column direction. According to the embodiment provided by the invention, the same power signal line is electrically connected with the sub-pixels at the two sides of the extending direction of the power signal line, so that the arrangement quantity of the power signal lines is reduced, the occupied space is reduced, the distance between the power signal line and the data signal line in the direction parallel to the light emitting surface of the display panel is further increased, the parasitic capacitance between the power signal line and the data signal line is reduced, and the display effect is improved. According to the embodiment of the invention, the power signal line and the data signal line are not overlapped in the direction vertical to the light emitting surface of the display panel, so that the distance between the power signal line and the data signal line in the direction vertical to the light emitting surface of the display panel is increased, the parasitic capacitance between the power signal line and the data signal line is reduced, and the display effect is improved.
While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims (10)

1. A display panel, comprising: a plurality of sub-pixels arranged in an array, a data signal line and a power signal line electrically connected to at least one of the sub-pixels;
the data signal line and the power signal line extend along the column direction and are positioned between adjacent sub-pixels;
the subpixels positioned on two sides of the same power signal line are electrically connected with the power signal line;
the same data signal line is electrically connected with the sub-pixels with the same luminous color;
along the direction perpendicular to the light emitting surface of the display panel, the projections of the power signal line and the data signal line are not overlapped.
2. The display panel according to claim 1, comprising: a plurality of the sub-pixels form at least one pixel unit;
the pixel units at least comprise a first color sub-pixel, a second color sub-pixel and a third color sub-pixel;
along the column direction, the first color sub-pixel is adjacent to the second color sub-pixel;
along the row direction, the third color sub-pixel is adjacent to the first color sub-pixel or adjacent to the second color sub-pixel;
the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel each have a different emission color.
3. The display panel according to claim 2, wherein the driving circuit of the third color sub-pixel and the driving circuit of the first color sub-pixel or the driving circuit of the second color sub-pixel are symmetrical with respect to the power supply signal line.
4. The display panel according to claim 2, wherein the data signal line includes at least a first data line, a second data line, a third data line, and a fourth data line that are parallel to each other;
the first data line and the second data line are respectively positioned at two opposite sides of the first color sub-pixel and/or the second color sub-pixel;
the first data line is electrically connected with the first color sub-pixel, and the second data line is electrically connected with the second color sub-pixel;
the third data line and the fourth data line are respectively positioned at two opposite sides of the third color sub-pixel;
the third data line is electrically connected with a third color sub-pixel adjacent to the second color sub-pixel, and the fourth data line is electrically connected with a third color sub-pixel adjacent to the first color sub-pixel.
5. The display panel according to claim 4, wherein the power signal line is located between the second data line and the third data line;
the power signal line is electrically connected with the first color sub-pixel, the second color sub-pixel and the third color sub-pixel.
6. The display panel according to claim 1, wherein an area of projection of an end portion of the power signal line is larger than an area of projection of a middle of the power signal line in a direction perpendicular to a light-emitting surface of the display panel;
the end part of the power signal line is at least partially positioned in a non-display area of the display panel.
7. The display panel of claim 6, wherein the power signal line comprises at least a first sub-segment, a second sub-segment, and a third sub-segment;
the second sub-section is connected with one end of the first sub-section, and the third sub-section is connected with one end of the second sub-section, which is far away from the first sub-section;
the width of the projection of the third subsection is larger than that of the projection of the first subsection along the direction perpendicular to the light-emitting surface of the display panel;
the width of the projection of one end of the second sub-section connected with the first sub-section is the same as that of the projection of the first sub-section, the width of the projection of the second sub-section gradually increases from one end connected with the first sub-section to one end connected with the third sub-section, and the width of the projection of one end of the second sub-section connected with the third sub-section is the same as that of the projection of the third sub-section.
8. The display panel according to claim 1, wherein the display panel includes at least a light emitting layer, an array layer, and a substrate in a direction perpendicular to a light emitting surface of the display panel;
the array layer is positioned on one side of the substrate;
the light-emitting layer is positioned on one side of the array layer, which is away from the substrate;
the power signal line and the data signal line are both positioned on the array layer, and the power signal line and the data signal line are arranged on the same layer.
9. The display panel according to claim 1, wherein the display panel includes at least a light emitting layer, an array layer, and a substrate in a direction perpendicular to a light emitting surface of the display panel;
the array layer is positioned on one side of the substrate;
the light-emitting layer is positioned on one side of the array layer, which is away from the substrate;
the power signal line and the data signal line are both positioned on the array layer, and the power signal line and the data signal line are not completely arranged on the same layer.
10. A display device comprising the display panel according to any one of claims 1 to 9.
CN202310110620.XA 2023-02-13 2023-02-13 Display panel and display device Pending CN116056516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310110620.XA CN116056516A (en) 2023-02-13 2023-02-13 Display panel and display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310110620.XA CN116056516A (en) 2023-02-13 2023-02-13 Display panel and display device

Publications (1)

Publication Number Publication Date
CN116056516A true CN116056516A (en) 2023-05-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310110620.XA Pending CN116056516A (en) 2023-02-13 2023-02-13 Display panel and display device

Country Status (1)

Country Link
CN (1) CN116056516A (en)

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