Display panel and display device

By designing the power signal line and data signal line in the display panel to extend in the column direction and do not overlap in the vertical direction, the crosstalk problem caused by the increase in parasitic capacitance in the demux structure is solved, and the display effect is improved.

CN116056516BActive Publication Date: 2025-08-05XIAMEN TIANMA DISPLAY TECH CO LTD
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Patent Information

Application Number
CN202310110620.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-02-13
Publication Date
2025-08-05
Estimated Expiration
2043-02-13

AI Technical Summary

Technical Problem

In the demux structure design, the parasitic capacitance between the power supply signal line and the data signal line increases, resulting in crosstalk and affecting the display effect.

Method used

A display panel is designed, and the power signal line and the data signal line extend in the column direction, located between adjacent sub-pixels, and the sub-pixels on both sides of the same power signal line are electrically connected, and do not overlap in the direction perpendicular to the light-out surface of the display panel, reducing the number of arrangements of the power signal line and increasing the distance between the two.

Benefits of technology

The parasitic capacitance between the power supply signal line and the data signal line is reduced, and the display effect is improved.

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Abstract

The present invention discloses a display panel and a display device, which relate to the field of display technology. The display panel includes a plurality of sub-pixels, data signal lines and power signal lines arranged in an array; the data signal lines and the power signal lines extend in the column direction and are located between adjacent sub-pixels; the sub-pixels located on both sides of the same power signal line are electrically connected to the power signal line; the same data signal line is electrically connected to the sub-pixels of 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 do not overlap. The embodiment provided by the present invention reduces the number of power signal lines arranged and the space occupied by electrically connecting the same power signal line to the sub-pixels on both sides of its extension direction, and further increases the distance between the power signal line and the data signal line by not overlapping the power signal line and the data signal line, thereby reducing the parasitic capacitance between the power signal line and the data signal line and improving the display effect.
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Description

Technical Field

[0001] The present invention relates to the field of display technology, and more particularly, to a display panel and a display device. Background Art

[0002] With the development of multimedia, display devices are becoming increasingly important. Consequently, the requirements for various types of display devices are becoming increasingly stringent, especially in the field of smartphones. Ultra-high-frequency drive displays, low-power drive displays, and low-frequency drive displays are all current and future development needs.

[0003] In related technologies, a demux structure is often used to save costs. However, to achieve high-frequency display, a dual data signal line structure is often used in this demux structure. This increases the parasitic capacitance between the power signal line and the data signal line, causing crosstalk and affecting the display effect. Summary of the Invention

[0004] In view of this, the present invention provides a display panel and a display device, which reduce the parasitic capacitance between the power signal line and the data signal line, avoid entanglement, and improve the display effect.

[0005] In a first aspect, the present invention provides a display panel comprising a plurality of sub-pixels arranged in an array, and a data signal line and a power signal line electrically connected to at least one of the sub-pixels;

[0006] The data signal lines and the power signal lines both extend along a column direction and are located between adjacent sub-pixels;

[0007] The sub-pixels located on both sides of the same power signal line are electrically connected to the power signal line;

[0008] The same data signal line is electrically connected to the sub-pixels of the same luminous color;

[0009] Along a direction perpendicular to the light emitting surface of the display panel, projections of the power signal line and the data signal line do not overlap.

[0010] In a second aspect, the present invention provides a display device comprising the display panel provided in the first aspect of the present invention.

[0011] Compared with the prior art, the display panel and display device provided by the present invention achieve at least the following beneficial effects:

[0012] In the embodiments provided by the present invention, the power signal lines and the data signal lines are parallel to each other and both extend in the column direction. In the embodiments provided by the present invention, the number of power signal lines arranged is reduced, the space occupied is reduced, and the distance between the power signal lines and the data signal lines in a direction parallel to the light-emitting surface of the display panel is increased, the parasitic capacitance between the power signal lines and the data signal lines is reduced, and the display effect is improved. In the embodiments of the present invention, the power signal lines and the data signal lines do not overlap in a direction perpendicular to the light-emitting surface of the display panel, thereby increasing the distance between the power signal lines and the data signal lines in a direction perpendicular to the light-emitting surface of the display panel, reducing the parasitic capacitance between the power signal lines and the data signal lines, and improving the display effect.

[0013] Of course, any product implementing the present invention does not necessarily need to achieve all of the technical effects described above at the same time.

[0014] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 A schematic diagram of a top view of the structure of a display panel provided by the present invention;

[0017] Figure 2 This is a schematic top view of another display panel provided by the present invention;

[0018] Figure 3 A schematic structural diagram of a pixel unit provided by the present invention;

[0019] Figure 4 A schematic structural diagram of another pixel unit provided by the present invention;

[0020] Figure 5 A schematic structural diagram of a driving circuit provided by the present invention;

[0021] Figure 6 This is a schematic diagram of a top view of another display panel provided by the present invention;

[0022] Figure 7 A schematic diagram of the film structure of a display panel provided by the present invention;

[0023] Figure 8 This is a schematic diagram of the film layer structure of another display panel provided by the present invention;

[0024] Figure 9 This is a top view of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0025] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention.

[0026] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0027] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0028] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0029] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0030] In related technologies, a demux structure is often used to save costs. However, to achieve high-frequency display, a dual data signal line structure is often used in this demux structure. This increases the parasitic capacitance between the power signal line and the data signal line, causing crosstalk and affecting the display effect.

[0031] In order to solve the above technical problems, an embodiment of the present invention provides a display panel, referring to Figure 1 As shown, Figure 1 This is a schematic diagram of a top view of a display panel provided by the present invention. An embodiment of the present invention provides a display panel 100, comprising: 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;

[0032] The data signal line data and the power signal line PVDD both extend along the column direction y and are located between adjacent sub-pixels 00;

[0033] The sub-pixels 00 located on both sides of the same power signal line PVDD are electrically connected to the power signal line PVDD;

[0034] The same data signal line data is electrically connected to the sub-pixel 00 of the same luminous color;

[0035] Along a direction perpendicular to the light emitting surface of the display panel 100 , projections of the power signal line PVDD and the data signal line data do not overlap.

[0036] It is understood that the display panel 100 includes multiple sub-pixels 00 arranged in an array. Each sub-pixel 00 can provide a light-emitting color, and the light-emitting intensity of each sub-pixel 00 is controllable. Therefore, the multiple sub-pixels 00 arranged in an array can form different display images by emitting different colors and different light-emitting intensities.

[0037] Furthermore, sub-pixel 00 includes a driving circuit. Display panel 100 provides multiple driving signals for driving the driving circuit of sub-pixel 00, causing the light-emitting element in the driving circuit to emit light. Specifically, the driving signals include at least a power signal and a data signal. The power signal is provided by power signal line PVDD, and the data signal is provided by data signal line data.

[0038] Furthermore, a plurality of sub-pixels 00 are arranged in an array along 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 signal line data both extend along the column direction y and are located between adjacent sub-pixels 00. The same power signal line PVDD is electrically connected to the sub-pixels 00 arranged on both sides thereof. In other words, the same power signal line PVDD is electrically connected to the two columns of sub-pixels 00 on both sides thereof to provide them with power signals. The two columns of sub-pixels 00 share the same power signal line PVDD, which can reduce the number of power signal lines PVDD. This can then enable the display panel 100 to provide more wiring space, increase the distance between the power signal line PVDD and the data signal line data, thereby reducing the parasitic capacitance between the power signal line PVDD and the data signal line data, and improving the display effect.

[0039] Meanwhile, the data signal line data also extends along the column direction y and is parallel to the power signal line PVDD. The same data signal line data is electrically connected to the sub-pixel 00 of the same luminous color in the same column, providing it with a data signal. The data signal is used to control the luminous intensity of the sub-pixel 00. Light of different luminous colors and intensities can be mixed to form different colors, thereby forming the display image.

[0040] Furthermore, along 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. In other words, the power signal line PVDD and the data signal line data do not overlap along a direction perpendicular to the light-emitting surface of the display panel 100. This further reduces the parasitic capacitance between the power signal line PVDD and the data signal line data.

[0041] In the embodiment provided by the present invention, the power signal line PVDD and the data signal line data are parallel to each other and both extend along the column direction y. The embodiment provided by the present invention reduces the number of power signal lines PVDD arranged and the space occupied by them by electrically connecting the same power signal line PVDD to the sub-pixels 00 on both sides of its extension direction, thereby increasing the distance between the power signal line PVDD and the data signal line data in a 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. The embodiment of the present invention also increases the distance between the power signal line PVDD and the data signal line data in a direction perpendicular to the light-emitting surface of the display panel 100 so that the power signal line PVDD and the data signal line data do not overlap, thereby reducing the parasitic capacitance between the power signal line PVDD and the data signal line data in a direction perpendicular to the light-emitting surface of the display panel 100, and improving the display effect.

[0042] In an optional embodiment provided by the present invention, referring to Figures 2 to 4 As shown, Figure 2 This is a schematic diagram of a top view of another display panel provided by the present invention; Figure 3 A schematic structural diagram of a pixel unit provided by the present invention; Figure 4 This is a schematic diagram of the structure of another pixel unit provided by the present invention. A plurality of sub-pixels 00 constitute at least one pixel unit 10;

[0043] A plurality of pixel units 10 are arranged in a column, and the 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;

[0044] Along the column direction y, the first color sub-pixel 01 is adjacent to the second color sub-pixel 02;

[0045] Along the row direction x, the third color sub-pixel 03 is adjacent to the first color sub-pixel 01 or the second color sub-pixel 02;

[0046] The first color sub-pixel 01 , the second color sub-pixel 02 , and the third color sub-pixel 03 all emit different colors.

[0047] It is understandable that a pixel unit 10 includes a plurality of sub-pixels 00. In the embodiment provided by the present invention, a pixel unit 10 includes 4 sub-pixels 00. Specifically, it includes at least a first color sub-pixel 01, a second color sub-pixel 02, and a third color sub-pixel 03. The luminous colors of the first color sub-pixel 01, the second color sub-pixel 02, and the third color sub-pixel 03 are all different. For example, the luminous color of the first color sub-pixel 01 can be red, the luminous color of the second color sub-pixel can be blue, and the luminous color of the third color sub-pixel can be green. Red, green, and blue are the three primary colors in optics. Red, green, and blue can be mixed into different colors according to different luminous intensities. For example, red light and green light are mixed in a 1:1 ratio of luminous intensity to obtain yellow light.

[0048] Furthermore, along the column direction y, the first color sub-pixel 01 and the second color sub-pixel 02 are adjacent, and along the row direction x, the first color sub-pixel 01 and the third color sub-pixel 03 are adjacent, or the second color sub-pixel 02 and the third color sub-pixel 03 are adjacent. That is, in the embodiment provided by the present invention, the four sub-pixels 00 included in the pixel unit 10 are arranged in an array to form a rectangle. Among them, 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 arranged alternately. The third color sub-pixel 03 is arranged in a column. In the embodiment provided by the present invention, the third color sub-pixel 03 with a green luminous color includes two. Since green is in the middle of the human visible spectrum, the eye is most sensitive to it. Therefore, providing two third color sub-pixels 03 can increase the brightness of the display.

[0049] In the embodiment provided by the present 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 of different luminous colors. By mixing the different colors and different intensities of light of the first color sub-pixel 01, the second color sub-pixel 02, and the third color sub-pixel 03, the pixel unit 10 displays different colors, thereby forming a display screen. Moreover, within a pixel unit 10, along the column direction y, the first color sub-pixel 01 and the second color sub-pixel 02 are located in the same column, and the third color sub-pixel 03 is located in the same column. This facilitates the electrical connection of the data line data extending along the column direction y with the sub-pixel 00 of the same luminous color.

[0050] In an optional embodiment provided by the present invention, referring to Figure 5 As shown, Figure 5The driving circuit 031 of the third color sub-pixel 03 is symmetrical with the driving circuit 011 of the first color sub-pixel 01 or the driving circuit 021 of the second color sub-pixel 02 about the power signal line PVDD.

[0051] It is understood that sub-pixel 00 includes a driving circuit that controls the light-emitting element to emit light based on a driving signal. For example, in the embodiments provided herein, the driving circuit includes a driving transistor M0 and multiple switching transistors. The driving transistor M0 is used to generate current to drive the light-emitting element D to emit light, and the switching transistors are used to turn the circuit on or off. A first power signal terminal and a second power signal terminal are provided. The first power signal terminal is electrically connected to the power signal line PVDD and is used to provide a first voltage signal to the driving circuit, while the second power signal terminal is used to provide a second voltage signal. A data signal terminal Vdata is connected to the data signal line data and is used to provide a data signal to the driving circuit. The driving circuit also includes a reset signal terminal, a light-emission control signal terminal, a first scan signal terminal, and a second scan signal terminal. The reset signal terminal is used to provide a reset signal to clear the residual voltage from the previous light emission of the driving transistor M0 and the light-emitting element D, thereby ensuring the light-emitting effect. The light-emission control signal terminal is used to provide a light-emission control signal. The first scan signal terminal is used to provide a first scan signal, and the second scan signal terminal is used to provide a second scan signal. The light-emission control signal, the first scan signal, and the second scan signal are used to control the switching transistors to be turned on or off. It should be noted that the drawings and the above description are merely one possible implementation of the present invention, and the structure of the driving circuit is not limited thereto.

[0052] Furthermore, along 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 on both sides of the same power signal line PVDD are electrically connected to the power signal line PVDD, the driving circuits of the sub-pixels 00 located on both sides of the power signal line PVDD, such as 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 about 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 about the power signal line PVDD.

[0053] In the embodiment provided by the present invention, the driving circuit 031 of the third color sub-pixel 03 is symmetrical with the driving circuit 011 of the first color sub-pixel 01, or with the driving circuit 021 of the second color sub-pixel 02, with respect to the power signal line PVDD. This facilitates the connection between the driving circuit and the power signal line, reduces wiring length, and simplifies the production process.

[0054] In an optional embodiment provided by the present invention, referring to Figure 3 or Figure 4 As shown, 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 which are parallel to each other;

[0055] The first data line data1 and the second data line data2 are respectively located at two opposite sides of the first color sub-pixel 01 and / or the second color sub-pixel 02;

[0056] The first data line data1 is electrically connected to the first color sub-pixel 01, and the second data line data2 is electrically connected to the second color sub-pixel 02;

[0057] The third data line data3 and the fourth data line data4 are respectively located at two opposite sides of the third color sub-pixel 03;

[0058] 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 .

[0059] It can be understood that the data signal lines data extend along the column direction y and are located between the sub-pixels 00. The data signal lines data include at least a first data line data1, a second data line data2, a third data line data3 and a fourth data line data4.

[0060] Furthermore, the first data line data1, the second data line data2, the third data line data3, and the fourth data line data4 are arranged in sequence along the column direction x. The first data line data1 is located on one side of the first color sub-pixel 01 and is electrically connected to the first color sub-pixel 01 located in the same column; the second data line data2 is located on one side of the second color sub-pixel 02 and is electrically connected to the second color sub-pixel 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 sub-pixel 01 or the second color sub-pixel 02, respectively. The third data line data3 and the fourth data line data4 are located on both sides of the third color sub-pixel 03, respectively. The third data line data3 is located on the side of the third color sub-pixel 03 that is closest to the second data line data2. The third data line data3 and the fourth data line data4 are both used to provide data signals to the third color sub-pixel 03. Since the number of third color sub-pixels 03 is twice that of the first color sub-pixels 01 or the second color sub-pixels 02, the number of data signal lines data used to provide data signals to the third color sub-pixels 03 is also twice that of the data signal lines data used to provide 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.

[0061] In the embodiment provided herein, multiple data signal lines (data) are provided, extending parallel to each other along the column direction (y). The data signal lines (data) include 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 (O1), the second color sub-pixel (O2), and the third color sub-pixel (O3), respectively, to provide data signals thereto. The multiple parallel data signal lines (data) facilitate wiring and simplify the production process.

[0062] In an optional embodiment provided by the present invention, continue to refer to Figure 3 and Figure 4 As shown, the power signal line PVDD is located between the second data line data2 and the third data line data3;

[0063] The power 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 .

[0064] It will be appreciated that pixel unit 10 includes four data signal lines (data) and one power signal line. The power signal line PVDD is required to provide a power signal to each sub-pixel of pixel unit 10. Therefore, the power signal line PVDD is located between the second data line (data2) and the third data line (data3). This facilitates electrical connection between the power signal line PVDD and the first color sub-pixel 01, the second color sub-pixel 02, and the third color sub-pixel 03.

[0065] It should be noted that the pixel units 10 are arranged in an array. Therefore, multiple pixel units 10 located in the same column direction y share a power signal line PVDD and a data signal line data. In other words, the same power signal line PVDD is electrically connected to multiple sub-pixels 00 in the multiple pixel units 10 located in the same column; and the same data signal line data is electrically connected to multiple sub-pixels 00 in the same column that emit the same light.

[0066] In the embodiment provided by the present invention, the power signal line PVDD is located between the second data line data2 and the third data line data3. The power signal line PVDD is kept at the same distance from the multiple sub-pixels 00 in the pixel unit 10, which facilitates electrical connection with the multiple sub-pixels 00 and simplifies wiring.

[0067] In an optional embodiment provided by the present invention, referring to Figure 6 As shown, Figure 6 This is a schematic top view of another display panel provided by the present invention. In a direction perpendicular to the light-emitting surface of the display panel 100, the projection area of the end of the power signal line PVDD is larger than the projection area of the middle of the power signal line PVDD.

[0068] An end portion of the power signal line PVDD is at least partially located in the non-display area NA of the display panel 10 .

[0069] It will be understood that the display panel 100 includes a display area AA and a non-display area NA, with the non-display area NA surrounding the display area AA. The power signal line PVDD extends along the column direction y, with the end of the power signal line PVDD at least partially located in the non-display area NA, and the middle of the power signal line PVDD at least partially located in the display area AA. Perpendicular to the light-emitting surface of the display panel 100, 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 other words, along the extension line of the power signal line PVDD, for power signal lines of the same length, the width of the middle power signal line PVDD is smaller than the width of the end power signal line PVDD.

[0070] In the embodiments provided herein, the power signal line PVDD is graphically designed. Specifically, the projected area of the center of the power signal line PVDD is smaller than the projected area of the ends. This further reduces the space occupied by the power signal line PVDD, increases the distance between the power signal line PVDD and the data signal line data, reduces parasitic capacitance, and improves display quality. Furthermore, it provides space for the layout of other components.

[0071] In an optional embodiment provided by the present invention, continue to refer to Figure 6 As shown, the power signal line PVDD includes at least a first sub-segment P1, a second sub-segment P2 and a third sub-segment P3;

[0072] The second sub-segment P2 is connected to one end of the first sub-segment P1, and the third sub-segment P3 is connected to the end of the second sub-segment P2 that is away from the first sub-segment P1;

[0073] Along a direction perpendicular to the light emitting surface of the display panel 10 , the width of the projection of the third sub-segment P3 is greater than the width of the projection of the first sub-segment P1 ;

[0074] The width of the projection of the end of the second subsegment P2 connected to the first subsegment P1 is the same as the width of the projection of the first subsegment P1. The width of the projection of the second subsegment P2 gradually increases from the end connected to the first subsegment P1 to the end connected to the third subsegment P3. The width of the projection of the end of the second subsegment P2 connected to the third subsegment P3 is the same as the width of the projection of the third subsegment P3.

[0075] It is understandable that the power signal line PVDD includes at least three segments with different widths. It should be noted that the width in this embodiment refers to the width of the projection of the power signal line PVDD perpendicular to the light emitting surface of the display panel 100 .

[0076] Specifically, the power signal line PVDD includes at least a first subsegment P1, a second subsegment P2, and a third subsegment P3. In a direction parallel to the display panel 100, from the display area AA toward the non-display area NA, the first subsegment P1, the second subsegment P2, and the third subsegment P3 are sequentially connected. The second subsegment P2 and the third subsegment P3 are located at the ends of the power signal line PVDD, while the first subsegment P1 is located in the middle of the power signal line PVDD.

[0077] Furthermore, perpendicular to the display panel 100, the width of the projection of the first subsegment P1 is smaller than the width of the projection of the third subsegment P3. Because the second subsegment P2 connects the first subsegment P1 and the third subsegment P3, the width of the projection of the second subsegment P2 at the end closest to the first subsegment P1 is the same as the width of the projection of the first subsegment P1, and the width of the projection of the second subsegment P2 at the end closest to the third subsegment P3 is the same as the width of the projection of the third subsegment P3. The width of the projection of the second subsegment P2 smoothly transitions from the end closest to the first subsegment P1 to the end closest to the third subsegment P3.

[0078] It should be noted that both ends of the first sub-segment P1 are connected to the second sub-segment P2, and the ends of the two second sub-segments P2 facing away from the first sub-segment P1 are both connected to the third sub-segment P3. In other words, along the extension direction of the power signal line PVDD, the power signal line PVDD has a structure that is wide at both ends and narrow in the middle.

[0079] In the embodiment provided by the present invention, the power signal line PVDD includes multiple subsegments, wherein the first subsegment P1 is located in the display area AA of the display panel 100, the second subsegment P2 and the third subsegment P3 are sequentially connected to one end of the first subsegment P1, and the third subsegment P3 is at least partially located in the non-display area NA of the display panel 100. Perpendicular to the light-emitting surface of the display panel 100, the width of the projection of the first subsegment P1 is smaller than the width of the projection of the third subsegment P3. The projection of the second subsegment P2 has a gradually decreasing width, connecting the first subsegment P1 and the third subsegment P3. The embodiment provided by the present invention utilizes a graphical design for the power signal line PVDD to reduce the wiring space of the power signal line PVDD, increase the distance between the power signal line PVDD and the data signal line data, and thereby reduce parasitic capacitance. This also provides more space for the layout of other components.

[0080] In an optional embodiment provided by the present invention, referring to Figure 7 As shown, Figure 7 Schematic diagram of the 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 comprises at least a light emitting layer 101, an array layer 102, and a substrate 103;

[0081] The array layer 102 is located on one side of the substrate 101;

[0082] The light emitting layer 101 is located on the side of the array layer 102 facing away from the substrate 101;

[0083] 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 arranged in the same layer.

[0084] It is understandable that the display panel 100 includes multiple functional layers, and the substrate 103, the array layer 102 and the light-emitting layer 101 are stacked in sequence along the direction of the light-emitting surface of the display panel 100. Specifically, the substrate 103 is used to provide support and provide a flat surface. The array layer 102 is located on one side of the substrate 103, and the array layer 102 is used to arrange circuits such as driving circuits. The light-emitting layer 101 is located on the side of the array layer 101 facing away from the substrate 101, and the light-emitting layer 101 is used to arrange light-emitting elements. The display panel 100 may further include an encapsulation layer (not shown in the figure), which is located on the side of the light-emitting layer 101 facing away from the array layer 102.

[0085] Furthermore, the power signal line PVDD and the data signal line data are both located in the array layer 102. The array layer 102 includes multiple film layers. 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. This film layer can 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 routing layer M1, and the power signal line PVDD and the data signal line data extend in parallel with each other.

[0086] In the embodiment provided by the present invention, the power signal line PVDD and the data signal line data are located in the same layer of the array layer 102. The driving circuit of the sub-pixel 00 is also located in the array layer 102. The power signal line PVDD and the data signal line data are located between the sub-pixels 00 to facilitate electrical connection between the power signal line PVDD and the data signal line data and the driving circuit of the sub-pixel 00.

[0087] In an optional embodiment provided by the present invention, referring to Figure 8 As shown, Figure 8 This is a schematic diagram of the film structure of another display panel provided by the present invention. In a direction perpendicular to the light-emitting surface of the display panel, the display panel comprises at least a light-emitting layer 101, an array layer 102, and a substrate 103;

[0088] The array layer 102 is located on one side of the substrate 103;

[0089] The light emitting layer 101 is located on the side of the array layer 102 facing away from the substrate 101;

[0090] 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 completely disposed in the same layer.

[0091] It is understandable that the display panel 100 includes multiple functional layers, and the substrate 103, the array layer 102 and the light-emitting layer 101 are stacked in sequence along the direction of the light-emitting surface of the display panel 100. Specifically, the substrate 103 is used to provide support and provide a flat surface. The array layer 102 is located on one side of the substrate 103, and the array layer 102 is used to arrange circuits such as driving circuits. The light-emitting layer 101 is located on the side of the array layer 101 facing away from the substrate 101, and the light-emitting layer 101 is used to arrange light-emitting elements. The display panel 100 may further include an encapsulation layer (not shown in the figure), which is located on the side of the light-emitting layer 101 facing away from the array layer 102.

[0092] Furthermore, the power signal line PVDD and the data signal line data are both located in the array layer 102. The array layer 102 includes multiple film layers. 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 signal line data can be located in the first metal routing layer M1, and the power signal line PVDD can be located in the first metal routing layer M1 and the second metal routing layer M2. In a direction perpendicular to the light-emitting surface of the display panel 100, the projections of the power signal line PVDD located in the first metal routing layer M1 and the second metal routing layer M2 do not overlap with the projection of the data signal line data.

[0093] 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 layers of the array layer 102. In a direction perpendicular to the light-emitting surface of the display panel 100, no portion of the power signal line PVDD overlaps with the projection of the data signal line data, which can further increase the distance between the power signal line PVDD and the data signal line data, reduce parasitic capacitance, and improve display quality.

[0094] Optionally, the display panel provided in this embodiment may be a display panel using organic light-emitting diode (OLED) display technology. The basic structure of an OLED display panel generally includes a hole transport layer, a light-emitting layer, and an electron transport layer. When a power supply supplies an appropriate voltage, holes from the anode and electrons from the cathode combine in the light-emitting layer, generating bright light. Compared to liquid crystal display panels, OLED display panels offer high visibility and brightness, are more energy-efficient, lightweight, and thin.

[0095] Based on the same inventive concept, the present invention also provides a display device, referring to Figure 9 As shown, Figure 9 This is a top view of a display device provided by an embodiment of the present invention. The display device 200 includes the display panel 100 in any of the above embodiments.

[0096] The display device 200 provided in the embodiment of the present invention can be any electronic device with a display function, such as a touch screen display, a mobile phone, a tablet computer, a laptop computer, an e-reader, 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. For details, please refer to the detailed description of the display panel 100 in the above embodiments, and will not be repeated in this embodiment.

[0097] It is understandable that Figure 9 The rectangular structure is used as an example to illustrate one shape of the display device 200. In some other embodiments of the present invention, the display device 200 may also be a rounded rectangle, a circle, an ellipse, or any other feasible shape, which is not specifically limited in the present invention.

[0098] In summary, the display panel and display device provided by the present invention achieve at least the following beneficial effects:

[0099] In the embodiments provided by the present invention, the power signal lines and the data signal lines are parallel to each other and both extend in the column direction. In the embodiments provided by the present invention, the number of power signal lines arranged is reduced, the space occupied is reduced, and the distance between the power signal lines and the data signal lines in a direction parallel to the light-emitting surface of the display panel is increased, the parasitic capacitance between the power signal lines and the data signal lines is reduced, and the display effect is improved. In the embodiments of the present invention, the power signal lines and the data signal lines do not overlap in a direction perpendicular to the light-emitting surface of the display panel, thereby increasing the distance between the power signal lines and the data signal lines in a direction perpendicular to the light-emitting surface of the display panel, reducing the parasitic capacitance between the power signal lines and the data signal lines, and improving the display effect.

[0100] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A display panel, characterized in that: include: A plurality of sub-pixels arranged in an array, and a data signal line and a power signal line electrically connected to at least one of the sub-pixels; The data signal lines and the power signal lines both extend along a column direction and are located between adjacent sub-pixels; The sub-pixels located on both sides of the same power signal line are electrically connected to the power signal line; The same data signal line is electrically connected to the sub-pixels of the same luminous color; Along a direction perpendicular to the light emitting surface of the display panel, projections of the power signal line and the data signal line do not overlap; A plurality of said sub-pixels constitute at least one pixel unit; A plurality of pixel units are arranged in an array, wherein the pixel units include at least 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 the second color sub-pixel; The first color sub-pixel, the second color sub-pixel, and the third color sub-pixel all emit different colors; Along a direction perpendicular to the light emitting surface of the display panel, the projection area of the end of the power signal line is larger than the projection area of the middle of the power signal line; An end portion of the power signal line is at least partially located in a non-display area of the display panel.

2. The display panel according to claim 1, wherein: The driving circuit of the third color sub-pixel is symmetrical with the driving circuit of the first color sub-pixel, or the driving circuit of the second color sub-pixel about the power signal line.

3. The display panel according to claim 1, wherein: The data signal lines at least include 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 located on two opposite sides of the first color sub-pixel and / or the second color sub-pixel; The first data line is electrically connected to the first color sub-pixel, and the second data line is electrically connected to the second color sub-pixel; The third data line and the fourth data line are respectively located on two opposite sides of the third color sub-pixel; The third data line is electrically connected to a third color sub-pixel adjacent to the second color sub-pixel, and the fourth data line is electrically connected to a third color sub-pixel adjacent to the first color sub-pixel.

4. The display panel according to claim 3, wherein: The power signal line is located between the second data line and the third data line; The power signal line is electrically connected to the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel.

5. The display panel according to claim 1, wherein: The power signal line comprises at least a first sub-segment, a second sub-segment and a third sub-segment; The second subsegment is connected to one end of the first subsegment, and the third subsegment is connected to an end of the second subsegment facing away from the first subsegment; Along a direction perpendicular to the light emitting surface of the display panel, a width of a projection of the third subsegment is greater than a width of a projection of the first subsegment; The width of the projection of the end of the second subsegment connected to the first subsegment is the same as the width of the projection of the first subsegment, the width of the projection of the second subsegment gradually increases from the end connected to the first subsegment to the end connected to the third subsegment, and the width of the projection of the end of the second subsegment connected to the third subsegment is the same as the width of the projection of the third subsegment.

6. The display panel according to claim 1, wherein: Along a direction perpendicular to the light emitting surface of the display panel, the display panel at least includes a light emitting layer, an array layer and a substrate; The array layer is located on one side of the substrate; The light-emitting layer is located on a side of the array layer facing away from the substrate; The power signal line and the data signal line are both located in the array layer, and the power signal line and the data signal line are arranged in the same layer.

7. The display panel according to claim 1, wherein: Along a direction perpendicular to the light emitting surface of the display panel, the display panel at least includes a light emitting layer, an array layer and a substrate; The array layer is located on one side of the substrate; The light-emitting layer is located on a side of the array layer facing away from the substrate; The power signal line and the data signal line are both located in the array layer, and the power signal line and the data signal line are not completely arranged in the same layer.

8. A display device, characterized in that: The display panel comprises the display panel according to any one of claims 1 to 7.

Citation Information

Patent Citations

  • Display panel and display device thereof

    CN109004012A