CN115171550B - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN115171550B
CN115171550B CN202210778612.8A CN202210778612A CN115171550B CN 115171550 B CN115171550 B CN 115171550B CN 202210778612 A CN202210778612 A CN 202210778612A CN 115171550 B CN115171550 B CN 115171550B
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Prior art keywords
display area
line
line segment
sub
display
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CN115171550A (en
Inventor
吴浩
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Xiamen Tianma Microelectronics Co Ltd
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Xiamen Tianma Microelectronics Co Ltd
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • 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]

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention discloses a display panel and a display device, and relates to the technical field of display. The display panel comprises a display area and a non-display area; the display area includes: a first display region including at least one first gate line; a second display region including at least one second gate line; the length of the first display area is longer than that of the second display area; the non-display area includes: a driving circuit module; the driving circuit modules of the first gate lines are arranged at two ends of the first display area along the first direction, and the two ends of the first gate lines are respectively connected with the driving circuit modules; the driving circuit modules of at least part of the second gate lines are arranged at two ends of the first display area along the first direction, and two ends of the second gate lines are respectively connected with the driving circuit modules; the difference between the load of each second gate line and the load of each first gate line is less than or equal to a preset threshold. The embodiment of the invention can improve the display uniformity of the display panel and the display effect.

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 the market, the "mobile smart space" becomes a new automobile attribute. Compared with the prior art, the vehicle-mounted screen is not only used for displaying vehicle state parameters such as oil consumption, speed per hour and the like, but also can provide more entertainment and interaction information for drivers and passengers.
In the related art, T-type or L-type in-vehicle display is generally implemented in two ways. First, as shown in fig. 1, fig. 1 is a schematic structural diagram of a display device in the related art, and the display device shown in fig. 1 includes two display panels that are spliced. The difference exists between the optics and the colors of the two display panels, so that the coordination is needed, the display synchronism of the two display panels is also needed, and the display uniformity is affected otherwise. Meanwhile, a frame exists at the junction of the two display panels, and the overall display effect is affected. Second, as shown in fig. 2, fig. 2 is a schematic structural diagram of another display device in the related art, where the display device shown in fig. 2 includes a T-type display panel, and in the horizontal direction, the widths of the first display area AA1 and the second display area AA2 are different, the loads of the different areas are different, and the delays of the signals are also different, so that the display panel is not uniform and has poor display effect.
Disclosure of Invention
In view of the above, the present invention provides a display panel and a display device, which can improve the display uniformity of the display panel and the display effect.
In one aspect, the present invention provides a display panel comprising: the display device comprises a display area and a non-display area, wherein the non-display area is arranged at the periphery of the display area;
the display area includes: the display device comprises a first display area, a second display area and a first display unit, wherein the first display area comprises at least one first sub-pixel row and at least one first gate line, the first sub-pixel row comprises a plurality of sub-pixels, the sub-pixels are sequentially arranged along a first direction, and the first gate line extends along the first direction and is connected with each sub-pixel; at least one of the first subpixel rows and at least one of the first gate lines are sequentially arranged along a second direction;
the second display area is connected with the first display area along the second direction;
the second display area comprises at least one second sub-pixel row and at least one second gate line, the second sub-pixel row comprises a plurality of sub-pixels, the sub-pixels are sequentially arranged along the first direction, and the second gate line extends along the first direction and is connected with each sub-pixel; at least one of the second subpixel rows and at least one of the second gate lines are sequentially arranged along the second direction;
the length of the first display area is longer than that of the second display area along the first direction;
the second direction is perpendicular to the first direction;
the non-display area includes: a driving circuit module;
the driving circuit module of the first gate line is arranged at two ends of the first display area along the first direction, and the two ends of the first gate line extend to the non-display area respectively and are connected with the driving circuit module;
the driving circuit modules of at least part of the second gate lines are arranged at two ends of the first display area along the first direction, and the two ends of the second gate lines respectively extend to the non-display area and are connected with the driving circuit modules;
the difference value between the load of each second gate line and the load of each first gate line is smaller than or equal to a preset threshold value.
In another 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:
according to the display panel provided by the invention, the length of the first display area along the first direction is longer than that of the second display area along the first direction, and the driving circuit modules of the second gate lines of at least part of the second display area are arranged at two ends of the first display area along the first direction, so that the length of the second gate lines connected to the driving circuit modules is increased until the load of the second gate lines is the same as that of the first gate lines of the first display area. Like this, the gate signal that drive circuit module provided is transmitted to the loading time of the sub-pixel that is located same second direction, and the loading time is close the same with the on-time, can improve along first direction, the homogeneity of the different first display region of length and second display region, and then improves display panel's display effect.
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 diagram of a display device according to the related art;
FIG. 2 is a schematic diagram of another display device according to the related art;
fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of another display panel according to an embodiment of the present invention;
FIG. 5 is an enlarged schematic view of a partial structure of another display panel according to an embodiment of the present invention;
FIG. 6 is a waveform diagram of a gate signal in the prior art;
FIG. 7 is an enlarged schematic view of a partial structure of a second gate line according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a second line segment according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of another display panel according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another second line segment according to an embodiment of the present invention;
FIG. 11 is a schematic diagram of a second line segment according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of another second line segment according to an embodiment of the present invention;
FIG. 13 is a waveform diagram of a gate signal according to an embodiment of the present invention;
fig. 14 is a schematic structural diagram of a display device according to an embodiment of the present 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.
It should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the embodiments of the present invention will be understood by those of ordinary skill in the art according to specific circumstances.
In an embodiment of the present invention, as shown in fig. 3, fig. 3 is a schematic structural diagram of a display panel provided in an embodiment of the present invention, where the display panel 300 includes a display area AA and a non-display area NA, and the non-display area NA is disposed at the periphery of the display area AA.
It will be appreciated that the display area AA is used for screen display and/or touch operation, and the non-display area NA is disposed around the display area AA, and is used for arranging a circuit module for driving the screen display and/or touch operation of the display area AA.
Fig. 4 and fig. 5 show schematic structural views of another display panel according to an embodiment of the present invention, and fig. 5 is an enlarged schematic partial structural view of another display panel according to an embodiment of the present invention. The display area AA includes: the first display area AA1, the first display area AA1 including at least one first subpixel row 311 and at least one first gate line 312, the first subpixel row 311 including a plurality of subpixels 310, the plurality of subpixels 310 being sequentially arranged along a first direction x, the first gate line 312 extending along the first direction x and being connected to each subpixel 310; at least one first subpixel row 311 and at least one first gate line 312 are sequentially arranged along the second direction y;
the second display area AA2, the second display area AA2 is connected with the first display area AA1 along the second direction y; the second display area AA2 includes at least one second subpixel row 321 and at least one second gate line 322, the second subpixel row 321 including a plurality of subpixels 310, the plurality of subpixels 310 being sequentially arranged along a first direction x, the second gate line 322 extending along the first direction x and being connected to each subpixel 310; at least one second subpixel row 321 and at least one second gate line 322 are sequentially arranged along the second direction y; along the first direction x, the length of the first display area AA1 is greater than the length of the second display area AA 2; the second direction y is perpendicular to the first direction x.
It will be appreciated that the display area AA includes a plurality of sub-pixels 310 arranged in a matrix, and along the first direction x, the first display area AA1 includes at least one first sub-pixel row 311, and the second display area AA2 includes at least one second sub-pixel row 321. Since the length of the second display area AA2 is smaller than the length of the first display area AA1 along the first direction x. Therefore, the second subpixel row 321 includes fewer subpixels 310 than the first subpixel row 311.
Each first sub-pixel row 311 corresponds to one first gate line 312, and the first gate line 312 extends along the first direction x and is connected to each sub-pixel 310 of the first sub-pixel row 311. The first gate line 312 sequentially emits a gate signal to each of the sub-pixels 310 of the first sub-pixel row 311. The second gate line 322 operates in the same manner as the first gate line 312, and will not be described again here.
Since the length of the second display area AA2 is smaller than the length of the first display area AA1 in the first direction x, the load of the second gate line 322 is smaller than the load of the first gate line 312.
With continued reference to fig. 4 and 5, the non-display area NA includes: a driving circuit module 33;
the driving circuit modules 33 of the first gate lines 312 are disposed at two ends of the first display area AA1 along the first direction x, and two ends of the first gate lines 312 extend to the non-display area NA and are connected to the driving circuit modules 33; the driving circuit module 33 of at least a portion of the second gate lines 322 is disposed at two ends of the first display area AA1 along the first direction x, and two ends of the second gate lines 322 respectively extend to the non-display area NA and are connected to the driving circuit module 33.
In the related art, as shown in fig. 2 and 6, fig. 6 is a waveform diagram of a gate signal in the prior art. Along the first direction x, each sub-pixel row corresponds to at least one driving circuit module 33, and the driving circuit module 33 is disposed at one or two ends of the sub-pixel row along the first direction x, and the sub-pixel row extends to the non-display area NA and is connected to the driving circuit module 33. The driving circuit module 33 is used for providing a gate signal to each sub-pixel 310 in the sub-pixel row. On the same sub-pixel row, referring to fig. 2, any sub-pixel row in the first display area AA1 is located in the area i and the area iiAnd area->As shown in fig. 6, the loading time sequentially increases, the unloading time sequentially increases, and the on time sequentially decreases. With continued reference to fig. 2, along the same second direction y, in the first display area AA1, for example in the area +.>Is located in the second display area AA2, for example in the region +.>The loading time and the unloading time of the sub-pixel 310 are increased and the on time is decreased. Since the waveforms of the gate signals of the sub-pixel 310 located in the first display area AA1 and the sub-pixel 310 located in the second display area AA2 in the same second direction y are different, the uniformity of the first display area AA1 and the second display area AA2 of the display panel 200 is poor, and the display effect is poor.
Referring to fig. 4, the driving circuit module 33 provided in the embodiment of the invention is disposed at two ends of the first display area AA1 along the first direction x in a concentrated manner, and two ends of the first gate line 312 of the first display area AA1 extend to the non-display area NA respectively and are connected to the driving circuit module 33. After the second gate line 322 of the second display area AA2 extends to the non-display area NA, a longer routing area is required to connect with the driving circuit module 33. At least one of the length, the width, and the distribution of other wirings of the second gate lines 322 is adjusted in combination with the distribution of the component structures in the display panel 300, so that the difference between the load of each second gate line 322 and the load of each first gate line 312 is less than or equal to a preset threshold.
It is understood that the preset threshold is a critical value. The preset threshold value can be set according to actual requirements. The higher the uniformity requirement for the display panel 300, the smaller the preset threshold. When the difference between the load of the second gate line 322 and the load of the first gate line 321 is less than or equal to the preset threshold, the loading time of the sub-pixels 310 of the first sub-pixel row 311 is similar to the loading time of the sub-pixels of the second sub-pixel row 321 along the same second direction y, the loading time is similar, the on-time is similar, that is, the waveforms tend to be consistent, so that the uniformity of the first display area AA1 and the second display area AA2 of the display panel 300 can be improved, and the display effect can be further improved.
In some alternative embodiments of the present invention, for example, please refer to fig. 7, fig. 7 is an enlarged schematic diagram of a partial structure of a second gate line according to an embodiment of the present invention. The line segment of the second gate line 322 extending to the non-display area NA includes a first line segment 3221, a second line segment 3222, and a third line segment 3223 connected to each other.
Specifically, the first line segment 3221 extends along the second direction y, and a first end of the first line segment 3221 is connected to the driving circuit module 33, and a second end of the first line segment 3221 is connected to a first end of the second line segment 3222;
the second line segment 3222 extends along the first direction x, and a first end of the second line segment 3222 is connected to a second end of the first line segment 3221, and a second end of the second line segment 3222 is connected to a first end of the third line segment 3223;
the third line 3223 extends along the second direction y, and the first end of the third line 3223 is connected to the second end of the second line 3222, and the second end of the third line 3223 is connected to the end of the second gate line 322 extending to the non-display area NA.
It is understood that an end of the second gate line 322 extending to the non-display area NA is connected to an end of the driving circuit module 33 adjacent to the second display area AA2. The first end of the first line segment 3221 is connected to an end of the driving circuit module 33 near the second display area AA2, and extends along a direction in which the first display area AA1 points to the second display area AA2. The first end of the second line segment 3222 is connected to the second end of the first line segment 3221, and extends along the direction of the driving circuit module 33 pointing to the first display area AA1, and the second line segment 3222 abuts against an edge of the first display area AA1 connected to one end of the second display area AA2. One end of the third line segment 3223 is connected to the second end of the second line segment 3222 and extends along the direction that the first display area AA1 points to the second display area AA2, and the third line segment 3223 abuts against an edge of one side of the second display area AA2, which is close to the driving circuit module 33. A second end of the third line 3223 is connected to an end of the second gate line 322 extending to the non-display area NA.
Referring to fig. 7, the second gate line 322 of the second display area AA2 is connected to the driving circuit module 33 at a longer distance from the first display area AA 1. Correspondingly, the greater its load.
In order to make the difference between the load of the second gate line 322 and the load of the first gate line 312 less than or equal to the preset threshold, at least one of the first line segment 3221, the second line segment 3222, and the third line segment 3223 of the second gate line 322 needs to be adjusted in at least one of length, width, and distribution of the routing thereof. In at least one application scenario of the embodiment of the present invention, the display panel 300 is used for a vehicle-mounted screen. The in-vehicle screen increases the area of the display panel 300 to utilize the display space of the vehicle as much as possible, and thus the second display area AA2 is provided. Accordingly, the corresponding traces of the NA of the second gate line 322 extending to the non-display area extend along the outer contour shapes of the first and second display areas AA1 and AA2, so that the traces have minimal influence on the shape and width of the display frame.
Specifically, in some alternative embodiments of the present invention, for example, as shown in fig. 8, fig. 8 is a schematic structural diagram of a second line segment provided in the embodiment of the present invention, where the second line segment 3222 includes a straight line region S and at least one bending region B00;
the second line segment 3222 includes a straight line segment S located in the straight line region S and a broken line segment B00 located in the bent region B00, and the straight line segment S and the broken line segment B00 are electrically connected.
It can be appreciated that by providing the bending region B00, the length of the second line segment 3222 is increased, and thus the load of the second gate line 322 is increased.
Specifically, the number of inflection zones B00 can be determined by formula (1):
wherein M is used for representing the number of bending areas;
k is used to represent the adjustment coefficient;
C pixel a capacitance value representing the sub-pixel 310;
X 1 for representing the number of sub-pixels 310 comprised by the first sub-pixel row 311;
X 2 for representing the number of sub-pixels 310 comprised by the second sub-pixel row 321;
R gate a load representing a line segment of a length of the interval between adjacent second subpixel rows 321 on the third line segment 3223;
y is used to represent the number of rows of the second sub-pixel 321 in the second display area AA 2;
R 0 for indicating an increased load of the bending region B00 in the first direction x than the first gate line 312 of the same length.
X is as follows 1 For representing the number of sub-pixels 310 comprised by the first sub-pixel row 311; x is X 2 Which represents the number of sub-pixels 310 comprised by the second sub-pixel row 321. In the formula (1), C pixel (X 1 -X 2 ) For representing an increased load of the first subpixel row 311 of the first display area AA1 than the second subpixel row 321 of the second display area AA2 along the first direction.
R gate A load representing a line segment of a length of the interval between adjacent second subpixel rows 321 on the third line segment 3223; y is used to denote the number of rows of the second subpixel row 321 in the second display area AA2. Since the sub-pixels 310 are arranged in a matrix, the distances between the sub-pixel rows are equal. In the formula (1), R gate Y num Which is used to represent an increased load of the second gate line 322 than the first gate line 312, i.e., a load of the third line section 3223 of the second gate line 322. The second gate lines 322 located at different rows have different loads than the first gate lines 312. Specifically, the second gate line 322 farther from the first display area AA1 increases the load more than the first gate line 312 in the second direction y.
As can be seen from the above, the difference between the increased load of the first sub-pixel row 311 and the increased load of the second gate line 322 and the first gate line 312 is the load of the second gate line 322 to be compensated.
R 0 For indicating an increased load of the bending region B00 in the first direction x than the first gate line 312 of the same length. It is understood that the segments of the first gate line 312 and the second line 3222 along the first direction x may cancel each other, so that the load to be compensated for by the second gate line 322 is increased by the load of the bending region B00 compared to the first gate line 312 with the same length, that is, the segment of the bending region B00 along the second direction y. The length of the line segment of the bending region B00 along the second direction y may be set according to practical situations, and the longer the length thereof, the larger the load added to each bending region B00, and at the same time, the larger the space required.
Therefore, equation (1) is used to represent the number of inflection zones. Since the load of the first subpixel row 311 increased than that of the second subpixel row 312 is determined by the number of subpixels 310, the number of subpixels 310 included in each first subpixel row 311 and the number of subpixels 310 included in each second subpixel row 321 are unchanged. Therefore, in the same display panel, the load increased by the first subpixel row 311 over the second subpixel row 312 is fixed. In the second direction y, the second gate line 322 further from the first display area AA1 increases the load more than the first gate line 312, and thus, the second gate line 322 further from the first display area AA1 needs to compensate the load less in the second direction y, i.e. the number of bending areas B00 is smaller. In combination with the shapes of the first display area AA1 and the second display area AA2, and the specific location of the extending arrangement of each second gate line 322 in the non-display area NA, the bending area B00 is disposed at the location of the second line segment 3222, so that the space condition is easily satisfied, and therefore, the bending area B00 is illustrated as being disposed at the second selection segment 3222.
It should be noted that the embodiment of the present invention is not limited to the specific connection position between the second display area AA2 and the first display area AA 1. The second display area AA2 may be connected to the first display area AA1 in a T-shape, i.e. the symmetry axis of the second display area AA2 along the first direction x coincides with the symmetry axis of the first display area AA1 along the first direction x, as shown in fig. 4. Alternatively, the second display area AA2 may be L-shaped with the first display area AA1, i.e. one end of the second display area AA2 along the first direction x is flush with one end of the first display area AA1, and referring to fig. 9, fig. 9 is a schematic structural diagram of another display panel according to an embodiment of the invention. Fig. 9 is merely illustrative, and in fig. 9, the second gate line at the right side may not have a structure having many bends and may be directly connected from the display region to the non-display region. Alternatively, the second display area AA2 may be located between the above two cases.
Both ends of the second gate line 322 are respectively connected to the driving circuit modules 33 located at both ends of the first display area AA1 along the first direction x. Therefore, the second display area AA2 and the first display area AA1 are connected at different positions, and the lengths of the second line segments 3222 extending to the non-display area NA at the two ends of the second gate line 322 are different. However, along the first direction x, the overall length of the second line segment 3222 is unchanged. Therefore, when the second line segment 3222 includes a plurality of inflection zones B00, the plurality of inflection zones B00 are uniformly disposed on the two second line segments 3222.
When the first display area AA1 and the second display area AA2 are coincident with each other about the symmetry axis of the first direction x, the lengths of the second line segments 3222 located at two ends of the second gate line 322 along the first direction x are the same; the plurality of bending regions B00 are uniformly distributed in the two second line segments 3222.
It can be understood that, when the first display area AA1 and the second display area AA2 are overlapped with each other about the symmetry axis of the first direction x, the display panel 300 is in an axisymmetric pattern, and the plurality of bending areas B00 are uniformly distributed on the two second line segments 3222, so that the arrangement of the lines can be uniformly performed, and the unbalance of the lines on two sides of the display panel 300 is avoided. Meanwhile, the plurality of bending areas B00 are uniformly distributed on the two second line segments 3222, so that the load of the bending areas B00 can be reduced to the greatest extent according to the length of the second line segments 3222, namely, the length of the bending areas B00 along the second direction y is reduced, the width of wiring of the second line segments 3222 is reduced, the area of the non-display area NA is reduced, and the screen occupation ratio is improved.
Specifically, the number of inflection zones B00 included in each second line segment 3222 may be determined by formula (2):
for the calculation principle of the formula (2), please refer to the above formula (1), and the description thereof is omitted herein.
In some alternative embodiments of the present invention, for example, please refer to fig. 10, fig. 10 is a schematic diagram of another second line segment according to an embodiment of the present invention. The inflection region B00 includes a first inflection region B01 and a second inflection region B02. The second line segment 3222 includes a straight line segment S located in the straight line region S, a first bending segment B01 located in the first bending region B01, and a second bending segment B02 located in the second bending region B02, which are connected to each other; the first bending section b01 and the second bending section b02 have different lengths along the second direction y.
It will be appreciated that the first inflection region B01 and the second inflection region B02 are different in size, and specifically, the lengths of the first inflection section B01 of the first inflection region B01 and the second inflection section B02 of the second inflection region B02 in the second direction y are different. Therefore, the loads added by the first inflection region B01 and the second inflection region B02 are also different. According to the space arrangement of the second line segment 3222, the first bending region B01 and the second bending region B02 with different loads can be more flexibly adjusted, so that the difference value between the second line segment 3222 and the first gate line 311 is smaller than or equal to a preset threshold value.
Specifically, the number of the first inflection regions B01 and the second inflection regions B02 may be determined by formula (3):
wherein N is 1 The number of the first bending areas B01 is represented;
N 2 the number of the second bending areas B02 is represented;
R 1 for indicating an increased load of the first bending region B01 in the first direction x than the first gate line 312 of the same length;
R 2 for indicating an increased load of the second bending region B02 in the first direction x than the first gate line 312 of the same length;
k is used to represent the adjustment coefficient;
C pixel a capacitance value representing the sub-pixel 310;
X 1 for representing the number of sub-pixels 310 comprised by the first sub-pixel row 311;
X 2 for representing the number of sub-pixels 310 comprised by the second sub-pixel row 321;
R gate a load representing a line segment of a length of the interval between adjacent second subpixel rows 322 on the third line segment 3223;
y is used to denote the number of rows of the second subpixel row 322 in the second display area AA2.
The structure of the second segment 3222 provided in this embodiment is the same as the bending region B00, and will not be described herein.
It should be noted that, along the direction in which the first display area AA1 points to the second display area AA2, the number of the first bending areas B01 increases, and the number of the second bending areas B02 decreases; or, the number of the first inflection regions B01 is equal to or less than that of the second inflection regions B02 is equal to or less than that of the first inflection regions B01.
It will be appreciated that since the second pixel rows 321 are sequentially arranged along the second direction y, the difference between the loads of the first gate lines 312 and the second gate lines 322 decreases along the direction in which the first display area AA1 points to the second display area AA2. Thus, the total number of the first inflection zones B01 and the second inflection zones B02 is unchanged, but the number of the first inflection zones B01 and the second inflection zones B02 is increased or decreased, etc.
Further, the embodiments of the present invention are not limited solely by the drawings. The first inflection region B01 may be larger than the second inflection region B02 or may be smaller than the second inflection region B02. When the first bending area B01 is larger than the second bending area B02, the number of the first bending areas B01 is reduced, the number of the second bending areas B02 is increased, and the first bending areas AA1 are directed to the second display area AA 2; when the first inflection region B01 is smaller than the second inflection region B02, the number of the first inflection regions B01 is equal to or greater than that of the second inflection regions B02.
It can be appreciated that, since the first bending region B01 and the second bending region B02 are simultaneously disposed in the second line segment 3222, the loads of the first bending region B01 and the second bending region B02 are different, so that the load of each second gate line 322 can be more accurately adjusted. Since the distance between each second subpixel row 312 is fixed, the load that the adjacent second gate line 322 needs to compensate for is also a fixed value. If the number of the first bending regions B01 and the second bending regions B02 increases or decreases, the increased load between the adjacent second gate lines 322 is n|R 1 -R 2 And I, wherein n is the number of the equidifferences before the first bending zone B01 and the second bending zone B02.
In some alternative embodiments of the present invention, for example, please refer to fig. 11, fig. 11 is a schematic diagram of another second line segment according to an embodiment of the present invention. The second line segment 3222 includes a first line width portion W1 and a second line width portion W2, and the width of the first line width portion W1 is greater than the width of the second line width portion W2.
Note that the load of the second gate line 322 per unit length is inversely proportional to the width thereof, i.e., the larger the width of the second gate line 322 is, the smaller the load thereof is; conversely, the smaller the width of the second gate line 322, the greater its load. Accordingly, the load thereof can be changed by changing the width of the second line segment 3222 of the second gate line 322.
It is understood that the second gate line 322 is produced through an Array process. Specifically, the method comprises the steps of film deposition, photoresist coating, exposure, development, etching and the like. And the load is changed by changing the width of the second line segment 3222 of the second gate line 322, the process flow is not required to be changed, and only the corresponding mask is required to be used for controlling the exposed area, so that the development and etching of the second line segment 3222 with different widths are performed. The structure provided by the embodiment has simple structure and is convenient for production.
Specifically, the second line segment 3222 includes a first line width portion W1 and a second line width portion W2 electrically connected to each other. The width of the first line width portion W1 is larger than the second line width portion W2, and the length of the second line width portion W2 can be determined by formula (4):
wherein L is 1 For representing the length of the first wire width W1;
k is used to represent the adjustment coefficient;
C pixel a capacitance value representing the sub-pixel 310;
X 1 for representing the number of sub-pixels 310 comprised by the first sub-pixel row 311;
X 2 for representing the number of sub-pixels 310 comprised by the second sub-pixel row 321;
R gate a load representing a line segment of a length of the interval between adjacent second subpixel rows 321 on the third line segment 3223;
y is used to represent the number of rows of the second sub-pixel 321 in the second display area AA 2;
R 3 a load representing a unit length of the first wire width W1;
R 4 for representing the load per unit length of the second line width W2.
It can be understood that the second line segment 3222 of the second gate line 322 is based on the load of the unit length of the second line width portion W2, and determines the length of the first line width portion W1 according to the load to be compensated. In the formula (4) of the present invention,for indicating the load to be compensated for by the second gate line 322, R 4 -R 3 The length of the second line width W1 is determined by increasing the load of the second line width W2 representing the unit length than the first line width W1. It will be appreciated that the smaller the load that the second gate line 322 needs to compensate in the direction in which the first display area AA1 points to the second display area AA2, the smaller the length of the second line width W2.
In some alternative embodiments of the present invention, for example, please refer to fig. 12, fig. 12 is a schematic diagram of another second line segment according to an embodiment of the present invention. The non-display area NA also comprises a common electrode wiring ITO1; the second gate line 322 is a second metal wire M2, and the extending direction of the second metal wire M2 is the same as that of the common electrode wire ITO1; the second line segment 3222 of the second metal trace M2 at least partially overlaps the common electrode trace ITO 1.
It can be appreciated that when the second metal trace M2 overlaps the common electrode trace Mc, a coupling capacitance is generated, and a load is increased. The increased load may be used to compensate for the second gate line 322. Since the second metal trace M2 and the common electrode trace Mc overlap in the thickness direction, the width of the wiring region of the second line segment 3222 along the second direction y may be reduced, thereby reducing the area of the non-display area NA and improving the screen ratio.
Specifically, the length of overlap of the common electrode trace ITO1 and the second line segment 3222 may be determined by equation (5):
wherein L is 2 A length for representing overlapping of the common electrode wiring ITO1 and the second line segment 3222;
k is used to represent the adjustment coefficient;
C pixel a capacitance value representing the sub-pixel 310;
X 1 for representing a first sub-pixelThe number of subpixels 310 comprised in row 311;
X 2 for representing the number of sub-pixels 310 comprised by the second sub-pixel row 312;
R gate a load representing a line segment of a length of the interval between adjacent second subpixel rows 312 on the third line segment 3223;
y is used to represent the number of rows of the second sub-pixel 312 in the second display area AA 2;
C dc for representing the unit capacitance value between the common electrode trace ITO1 and the second metal trace M2.
It can be understood that the second line segment 3222 of the second gate line 322 is based on the load of the unit length of the second metal wire M2, and the overlapping length of the common electrode wire ITO1 and the second line segment 3222 is determined according to the load to be compensated. In the formula (5), K [ C ] pixel (X 1 -X 2 )-R gate Y num ]For indicating the load to be compensated for by the second gate line 322, C dc For representing the unit capacitance value between the common electrode trace ITO1 and the second metal trace M2, thereby determining the overlapping length of the common electrode trace ITO1 and the second line segment 3222. It will be appreciated that the smaller the load that the second gate line 322 needs to compensate in the direction in which the first display area AA1 points to the second display area AA2, the smaller the length of overlap of the common electrode trace ITO1 and the second line segment 3222.
Referring to fig. 4 and 13, fig. 13 is a waveform diagram of a gate signal according to an embodiment of the present invention. As can be seen from fig. 13, according to the scheme provided by any of the above embodiments, the difference between the load of the second gate line 322 and the load of the first gate line 321 can be smaller than or equal to the preset threshold. Further, the preset threshold value can be set according to actual requirements. The higher the uniformity requirement for the display panel, the smaller the preset threshold. When the difference between the load of the second gate line 322 and the load of the first gate line 321 is less than or equal to the preset threshold, the first sub-pixel row 311 is located in the same second direction y, as shown in fig. 4Is located in the region +.>Or, the first subpixel row 311 is located in the region +.>Is located in the region +.>The loading time and the unloading time of the sub-pixels 310 are similar, and the conducting time is similar, i.e. the waveforms tend to be consistent, so that the uniformity of the first display area AA1 and the second display area AA2 of the display panel 300 can be improved, and the display effect can be further improved.
Fig. 14 is a schematic structural diagram of a display device 400 according to an embodiment of the present invention, which includes the display panel 300 according to any one of the above embodiments.
Alternatively, the display device 400 provided in the embodiment of the present invention may be, for example, a Mini LED display device or a Micro LED display device, which includes a Mini LED display panel or a Micro LED display panel, where the Mini LED display panel or the Micro LED display panel may employ the display panel 300 provided in the above embodiment of the present invention.
It should be noted that, in the embodiment of the display device 400 provided by the present invention, reference may be made to the above-mentioned embodiment of the curved light-emitting substrate, and no further description is given here. The display device provided by the embodiment of the invention can be embodied as any product or component with a display function, such as a mobile phone, a tablet personal computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
In summary, the display panel and the display device provided by the invention at least realize the following beneficial effects:
according to the display panel provided by the invention, the length of the first display area along the first direction is longer than that of the second display area along the first direction, and the driving circuit modules of the second gate lines of at least part of the second display area are arranged at two ends of the first display area along the first direction, so that the length of the second gate lines connected to the driving circuit modules is increased until the load of the second gate lines is the same as that of the first gate lines of the first display area. Like this, the gate signal that drive circuit module provided is transmitted to the loading time of the sub-pixel that is located same second direction, and the loading time is close the same with the on-time, can improve along first direction, the homogeneity of the different first display region of length and second display region, and then improves display panel's display effect.
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 (7)

1. A display panel, comprising:
the display device comprises a display area and a non-display area, wherein the non-display area is arranged at the periphery of the display area;
the display area includes: the display device comprises a first display area, a second display area and a first display unit, wherein the first display area comprises at least one first sub-pixel row and at least one first gate line, the first sub-pixel row comprises a plurality of sub-pixels, the sub-pixels are sequentially arranged along a first direction, and the first gate line extends along the first direction and is connected with each sub-pixel; at least one of the first subpixel rows and at least one of the first gate lines are sequentially arranged along a second direction;
the second display area is connected with the first display area along the second direction;
the second display area comprises at least one second sub-pixel row and at least one second gate line, the second sub-pixel row comprises a plurality of sub-pixels, the sub-pixels are sequentially arranged along the first direction, and the second gate line extends along the first direction and is connected with each sub-pixel; at least one of the second subpixel rows and at least one of the second gate lines are sequentially arranged along the second direction;
the length of the first display area is longer than that of the second display area along the first direction;
the second direction is perpendicular to the first direction;
the non-display area includes: a driving circuit module;
the driving circuit module of the first gate line is arranged at two ends of the first display area along the first direction, and the two ends of the first gate line extend to the non-display area respectively and are connected with the driving circuit module;
the driving circuit modules of at least part of the second gate lines are arranged at two ends of the first display area along the first direction, and the two ends of the second gate lines respectively extend to the non-display area and are connected with the driving circuit modules;
the difference value between the load of each second gate line and the load of each first gate line is smaller than or equal to a preset threshold value;
the line segment of the second grid line extending to the non-display area comprises a first line segment, a second line segment and a third line segment which are connected with each other; the first line segment extends along the second direction, a first end of the first line segment is connected to the driving circuit module, and a second end of the first line segment is connected to a first end of the second line segment; the second line segment extends along the first direction, a first end of the second line segment is connected to a second end of the first line segment, and a second end of the second line segment is connected to a first end of the third line segment; the third line segment extends along the second direction, the first end of the third line segment is connected to the second end of the second line segment, and the second end of the third line segment is connected to the end part of the second gate line extending to the non-display area;
the arrangement mode of the second gate line at least comprises:
the second line segment comprises a straight line region and at least one bending region; the second line segment comprises a straight line segment positioned in the straight line region and a broken line segment positioned in the bending region, and the straight line segment is electrically connected with the broken line segment; the number of the bending areas is as follows:
wherein M is used for representing the number of the bending areas;
or alternatively, the first and second heat exchangers may be,
the second line segment comprises a first line width part and a second line width part, the width of the first line width part is larger than that of the second line width part, and the length of the second line width part is as follows:
wherein L is 1 For representing the length of the first thread width;
or alternatively, the first and second heat exchangers may be,
the non-display area also comprises a common electrode wire; the second gate line is a second metal wire, and the extending direction of the second metal wire and the extending direction of the common electrode wire are the same; the second line segment of the second metal wire is at least partially overlapped with the common electrode wire; the overlapping length of the common electrode wire and the second line segment is as follows:
wherein L is 2 A length for representing overlapping of the common electrode trace and the second line segment; k is used to represent the adjustment coefficient; c (C) pixel A capacitance value representing the sub-pixel; x is X 1 For representing the number of said sub-pixels comprised by said first sub-pixel row; x is X 2 For representing the sub-pixel comprised by the second sub-pixel rowThe number of pixels; r is R gate A load representing a line segment having a length of a distance between adjacent rows of the second sub-pixels on the third line segment; y is used for representing the number of lines of the second sub-pixel line in the second display area; r is R 0 For indicating an increased load of the bending region along the first direction than the first gate line of the same length; r is R 3 A load representing a unit length of the first line width portion; r is R 4 A load representing a unit length of the second line width portion; c (C) dc And the unit capacitance value is used for representing the unit capacitance value between the common electrode wire and the second metal wire.
2. The display panel according to claim 1, wherein when the first display region and the second display region are coincident with each other about the symmetry axis of the first direction, the lengths of the second line segments at both ends of the second gate line in the first direction are the same;
the bending areas are uniformly distributed on the two second line segments.
3. The display panel of claim 2, wherein each of the second line segments includes the number of bending regions as follows:
4. the display panel of claim 1, wherein the inflection zones comprise a first inflection zone and a second inflection zone;
the second line segment comprises a straight line segment which is positioned in a straight line region, a first bending segment which is positioned in the first bending region and a second bending segment which is positioned in the second bending region and connected with each other;
the lengths of the first bending section and the second bending section along the second direction are different.
5. The display panel of claim 4, wherein the number of the first inflection regions and the second inflection regions is:
wherein N is 1 The number of the first bending areas is represented;
N 2 the number of the second bending areas is represented;
R 1 for indicating an increased load of the first bending region along the first direction than the first gate line of the same length;
R 2 for indicating an increased load of the second bending region along the first direction than the first gate line of the same length.
6. The display panel of claim 5, wherein the number of the first inflection regions increases and the number of the second inflection regions decreases along a direction in which the first display region is directed toward the second display region;
or, the number of the first bending areas is reduced, and the number of the second bending areas is increased.
7. A display device comprising the display panel according to any one of claims 1 to 6.
CN202210778612.8A 2022-06-30 2022-06-30 Display panel and display device Active CN115171550B (en)

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