CN107808638B - Display panel and display device - Google Patents
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- CN107808638B CN107808638B CN201711072254.4A CN201711072254A CN107808638B CN 107808638 B CN107808638 B CN 107808638B CN 201711072254 A CN201711072254 A CN 201711072254A CN 107808638 B CN107808638 B CN 107808638B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3266—Details of drivers for scan electrodes
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Abstract
The invention discloses a display panel and a display device, the display panel includes: a substrate; a plurality of scanning lines formed in a display region of the substrate; the active switch is formed in a display area of the substrate and is coupled with the scanning line; the scanning driving circuits are arranged at the edge of the substrate and used for driving the scanning lines; the connecting line is coupled with the two adjacent scanning driving circuits; the scanning driving circuit is provided with the impedance modules, connecting lines are arranged between the scanning driving circuits, the resistance value of the impedance module on the former scanning driving circuit is equal to the sum of the resistance values of all the connecting lines between the scanning driving circuits, the impedance module is arranged on the scanning driving circuit, the difference of the resistance values between two adjacent scanning driving circuits can be effectively improved, the color display difference of the display panel is effectively improved, and the optical quality of the display panel product is further improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
The existing displays are generally controlled based on active switches, have many advantages such as thin body, power saving, no radiation, and are widely used, and mainly include liquid crystal displays, OLED (Organic Light-Emitting Diode) displays, qled (quantum Dot Light Emitting diodes) displays, plasma displays, and the like.
The liquid crystal display comprises two parts of a liquid crystal panel and a backlight module (backlight module), and the working principle of the liquid crystal display is that liquid crystal molecules are placed between two parallel glass substrates, and driving voltage is applied to the two glass substrates to control the rotation direction of the liquid crystal molecules so as to refract light rays of the backlight module out to generate pictures.
For the OLED display, the organic light emitting diode is adopted for self-luminescence to display, and the OLED display has the advantages of self-luminescence, wide viewing angle, almost infinite contrast, lower power consumption, extremely high reaction speed and the like.
The QLED display structure is very similar to the OLED technology, with the main difference being that the luminescent centers of the QLEDs are composed of Quantum dot (Quantum dots) material. The structure of the quantum dot structure is that electrons (electrons) and holes (holes) on two sides are converged in a quantum dot layer to form photons (exiton), and the photons emit light through recombination.
Because of the limitation of the number of pins of the scanning driving circuit, the number of scanning lines of a high-resolution display panel is greater than the number of pins which can be driven by one scanning driving circuit, so that a plurality of scanning driving circuits are needed in one panel, and because the scanning driving circuits are connected in series through connecting wires, the waveform difference of driving signals is particularly obvious, thereby affecting the display effect of the liquid crystal display.
Disclosure of Invention
An object of the present invention is to provide a display panel that effectively improves display color difference.
To solve the above problem, an embodiment of the present invention provides a display panel including:
a display panel, the display panel comprising:
a substrate;
a plurality of scanning lines formed in a display region of the substrate;
the active switch is formed in a display area of the substrate and is coupled with the scanning line;
the scanning driving circuits are arranged at the edge of the substrate and used for driving the scanning lines;
the connecting line is coupled with the two adjacent scanning driving circuits;
the scanning driving circuits are provided with impedance modules, connecting lines are arranged among the scanning driving circuits, and the resistance value of the impedance module on the previous scanning driving circuit is equal to the sum of the resistance values of the connecting lines among all the scanning driving circuits.
Furthermore, the impedance module comprises a first impedance unit, fan-out lines are arranged between the scanning drive circuit and the scanning lines, the fan-out lines are arranged in one-to-one correspondence with the first impedance units, and the sum of the resistance values of all the fan-out lines of the scanning drive circuit and the corresponding first impedance units is equal. Therefore, through the arrangement of the first impedance unit, the resistance value difference between all fan-out lines connected with the same scanning driving circuit can be effectively improved, the color difference of the display panel is reduced, the color difference of the display panel is further improved, the display quality of the display panel is further effectively improved, and the display effect of the display panel is better; the sum of the resistances of all fan-out lines connected with the scanning driving circuit is equal to the sum of the resistances of the impedance modules, so that the difference of the resistances of two adjacent fan-out lines connected with the same scanning driving circuit can be effectively improved, the resistances of two adjacent fan-out lines of the scanning driving circuit are equal, the color display of the display panel is more uniform, the consistent display brightness of the display panel is ensured, and the display quality of the display panel is further improved.
Furthermore, the impedance module comprises a second impedance unit, the fan-out line is electrically connected with the second impedance unit, and the first impedance unit is arranged on the fan-out line. Therefore, through the combined action of the first impedance unit and the second impedance unit, the driving signal of each scanning line on the display panel keeps a normal waveform, the waveform difference can not occur, particularly after the reliability high-temperature high-humidity test, the active switching characteristic curve basically can not deviate, the leakage current or the charging is in a normal range, and therefore the liquid crystal display can be effectively ensured not to have poor horizontal block at the junction of the scanning driving circuit, and the display effect of the liquid crystal display panel is effectively ensured.
Furthermore, the edge of base plate is equipped with the fan-out district, fan-out line establishes on the fan-out district, be equipped with the insulating layer on the fan-out district, the impedance module includes the insulating layer. Like this, through setting up the insulating layer in the fan-out district, fan-out line or connecting wire are walked the line in the bending on the insulating layer, through the line length of walking of accurate calculation fan-out line on the insulating layer to can effectual compensation fan-out line or connecting wire impedance difference each other, the impedance difference that can effectual improvement between two adjacent scanning drive circuit realizes that display panel's colour difference diminishes, and then effectual promotion display panel's display quality, make display panel display effect better.
Furthermore, the insulating layer includes a plurality of insulating archs, insulating protruding for the cuboid setting, the fan is qualified for the next round of competitions and is established on the insulating arch, insulating protruding with the fan is qualified for the next round of competitions one-to-one setting. Like this, with the setting of insulating protruding adoption cuboid, make things convenient for the fan-out line or the winding of connecting wire to establish, the length of establishing is wound in calculation that can be more accurate to effectual compensation fan-out line or connecting wire impedance difference each other can effectually improve the impedance difference between two adjacent scanning drive circuit and realize that display panel's colour difference diminishes.
Furthermore, the length of the insulating bulge is less than or equal to that of the fanout line. Like this, make things convenient for the fan to be qualified for next round of competitions and establish the line on insulating arch, need not change the area in original fan-out district, the fan is qualified for next round of competitions and is established on insulating bellied each face, effectual increase fan-out line or connecting wire length to can effectual compensation fan-out line or connecting wire impedance difference each other, realize that display panel's colour difference diminishes, and then effectual promotion display panel's display quality, make display panel display effect better.
Furthermore, the height of the insulating protrusion is greater than the width of the fanout line. Like this, make things convenient for fan-out line or connecting wire to carry out the wire winding from insulating bellied side, effectual increase fan-out line or connecting wire length to can effectual compensation fan-out line or connecting wire impedance difference each other, make display panel's colour show more even, guarantee the unanimous display brightness of display panel, further improvement display panel's display quality.
Furthermore, the width of the insulating protrusion is greater than that of the fanout line. Like this, make things convenient for fan-out line or connecting wire to carry out the wire winding from insulating bellied side, effectual increase fan-out line or connecting wire length can the effectual impedance difference that improves between two adjacent scanning drive circuit, further improvement display panel's colour difference, and then effectual promotion display panel's display quality.
Furthermore, the distance between two adjacent insulating bulges is more than twice the thickness of the fanout line. Like this for wire winding between two adjacent insulating archs can not disturb each other, makes things convenient for fan-out line or connecting wire to wind from insulating bellied side, makes display panel's colour show more even, guarantees the unanimous display brightness of display panel, further improvement display panel's display effect
Another object of the present invention is to provide a display device that effectively improves the display color difference.
A display device comprises a control component and the display panel.
According to the invention, the impedance module is arranged on the scanning drive circuit, so that the difference of the resistance values between two adjacent scanning drive circuits can be effectively improved, the color display difference of the display panel is effectively improved, and the optical quality of the display panel product is further improved; the resistance value of the impedance module on the previous scanning drive circuit is equal to the sum of the resistance values of the connecting lines between all the subsequent scanning drive circuits, so that the waveforms of the drive signals of the scanning lines of the display panel at the junction of the two scanning drive circuits tend to be the same, the impedance difference between the two adjacent scanning drive circuits can be effectively improved, the color difference of the display panel is further improved, the color difference of the display panel is reduced, the display quality of the display panel is effectively improved, and the display effect of the display panel is better; the characteristic curve of an active switch on the scanning driving circuit can be effectively ensured, so that the active switch keeps normal current or normal charging efficiency, and the waveform difference of driving signals is further effectively improved, so that the color and brightness of the display panel are ensured to be more uniform, the display effect of the display panel is further improved, and the product competitiveness is better improved; meanwhile, extra equipment cost cannot be increased, the difference of resistance values between two adjacent scanning driving circuits can be improved only by slightly improving the manufacturing process of the conventional display panel, and the production cost and the research and development cost of the display panel are effectively reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic diagram of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a display panel according to another embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a display panel according to another embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a fan-out area of one embodiment of the present invention;
FIG. 5 is a schematic view of a routing compensation of an insulating layer according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a display device according to an embodiment of the invention.
10, a substrate; 11. scanning a line; 12. a scan driving circuit; 13. an impedance module; 131. a first impedance unit; 132. a second impedance unit; 14. a connecting wire; 15. a fanout line; 16. a fan-out region; 17. an insulating layer; 100. a display device; 200. a control component; 300. a display panel.
Detailed Description
Specific structural and functional details disclosed herein are merely representative and are provided for purposes of describing example embodiments of the present invention. The present invention may, however, be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the term "comprises" and any variations thereof is intended to cover non-exclusive inclusions.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
In the drawings, elements having similar structures are denoted by the same reference numerals.
The display panel and the display device of the present invention are described in further detail below with reference to the embodiments of fig. 1 to 6.
Because the number of the pins of the scan driving circuit is limited, the number of the scan lines of a high-resolution display panel is greater than the number of the pins which can be driven by one scan driving circuit, and thus, a plurality of scan driving circuits are required in one panel. Since the resistance of the fanout line is closely related to the wiring length, the resistance of the gate line connected to the next scanning driving circuit is larger than the resistance of the gate line connected to the previous scanning driving circuit, so that the waveforms of the gate driving signals on the two gate lines are different. The waveform difference of the gate driving signals at the boundary of the two scan driving circuits, that is, the last gate line connected to the previous scan driving circuit and the first gate line connected to the next scan driving circuit, is particularly obvious. Particularly, after a high temperature and high humidity reliability test, a characteristic curve of a Thin Film Transistor (TFT) may be shifted, a leakage current may be increased or a charging may be insufficient, so that the waveform difference may be more obvious, which may cause a horizontal block defect at a boundary of a scan driving circuit of the liquid crystal display, and affect a display effect of the liquid crystal display.
As shown in fig. 1, the present invention discloses a display panel, including:
a substrate;
a plurality of scanning lines formed in a display region of the substrate;
the active switch is formed in a display area of the substrate and is coupled with the scanning line;
the scanning driving circuits are arranged at the edge of the substrate and used for driving the scanning lines;
the connecting line is coupled with the two adjacent scanning driving circuits;
the scanning driving circuits are provided with impedance modules, connecting lines are arranged among the scanning driving circuits, and the resistance value of the impedance module on the previous scanning driving circuit is equal to the sum of the resistance values of the connecting lines among all the scanning driving circuits.
By arranging the impedance module 13 on the scanning drive circuit 12, the difference of the resistance values between two adjacent scanning drive circuits 12 can be effectively improved, the color display difference of the display panel can be effectively improved, and the optical quality of the display panel product can be further improved; the resistance value of the impedance module 13 on the previous scanning drive circuit 12 is equal to the sum of the resistance values of the connecting lines 14 between all the subsequent scanning drive circuits 12, so that the waveforms of the drive signals of the scanning lines 11 of the display panel at the junction of the two scanning drive circuits 12 tend to be the same, the impedance difference between the two adjacent scanning drive circuits 12 can be effectively improved, the color difference of the display panel is further improved, the color difference of the display panel is reduced, the display quality of the display panel is effectively improved, and the display effect of the display panel is better; moreover, the characteristic curve of the active switch on the scanning drive circuit 12 can be effectively ensured, so that the active switch keeps normal current or normal charging efficiency, and the waveform difference of the drive signal is further effectively improved, so that the color and brightness of the display panel are more uniform, the display effect of the display panel is further improved, and the product competitiveness is better improved; meanwhile, the extra equipment cost is not increased, and the difference of the resistance values between two adjacent scanning driving circuits 12 can be improved only by slightly improving the manufacturing process of the conventional display panel, so that the production cost and the research and development cost of the display panel are effectively reduced.
As shown in fig. 2, the impedance module 13 includes a first impedance unit 131, the fan-out lines 15 are disposed between the scan driving circuit 12 and the scan lines 11, the fan-out lines 15 are disposed in one-to-one correspondence with the first impedance unit 131, and by disposing the first impedance unit 131, the resistance difference between all fan-out lines 15 connected to the same scan driving circuit 12 can be effectively improved, so as to reduce the color difference of the display panel, further improve the color difference of the display panel, further effectively improve the display quality of the display panel, and make the display effect of the display panel better; the sum of the resistance values of all the fan-out lines 15 of the scan driving circuit 12 and the corresponding first impedance units 131 is equal, the sum of the resistance values of all the fan-out lines 15 connected by the scan driving circuit 12 and the impedance module 13 is equal, as shown in the figure, the resistance value of the first fan-out line 15 is a1, the resistance value b1 of the first impedance unit 131 corresponding to the first fanout line 15, the resistance value a2 of the second fanout line 15 adjacent to the first fanout line 15, the resistance value b2 of the first impedance unit 131 corresponding to the second fanout line 15, that is, a1+ b1 is a2+ b2, the difference in resistance between two adjacent fan-out lines 15 connected to the same scan driving circuit 12 can be effectively improved, the resistance values of two adjacent fan-out lines 15 of the scanning drive circuit 12 are equal, so that the color display of the display panel is more uniform, the consistent display brightness of the display panel is ensured, and the display quality of the display panel is further improved; the resistance of the optional first impedance unit 131 may be zero, for example, the first impedance unit 131 is made of a superconducting material, and the optional first impedance unit 131 is a resistor or an electronic component having the same function.
As shown in fig. 3, the impedance module 13 includes a second impedance unit 132, the fan-out line 15 is electrically connected to the second impedance unit 132, the first impedance unit 131 is disposed on the fan-out line 15, and through the combined action of the first impedance unit 131 and the second impedance unit 132, the driving signal of each scanning line 11 on the display panel maintains a normal waveform, so that no waveform difference occurs, especially after a reliability high temperature and high humidity test, the active switching characteristic curve does not shift basically, and the leakage current or charging is within a normal range, thereby effectively ensuring that the liquid crystal display does not have a bad horizontal block at the boundary of the scanning driving circuit 12, and effectively ensuring the display effect of the liquid crystal display panel; the first impedance unit 131 is used to compensate for the resistance difference between all the fan-out lines 15 of the same scan driving circuit 12, so that the sum of the resistance values of all the fan-out lines 15 of the same scan driving circuit 12 and the corresponding first impedance units 131 is equal, the resistance values of two adjacent fan-out lines 15 connected with the same scanning driving circuit 12 are equal, so that the color display of the display panel is more uniform, the consistent display brightness of the display panel is ensured, the display quality of the display panel is further improved, the second impedance unit 132 is used for compensating the difference of the sum of the resistance values of the connecting lines 14 between all scanning driving after the second impedance unit is used for compensating, the impedance difference between two adjacent scanning driving circuits 12 can be effectively improved, the color difference of the display panel is further improved, and the color difference of the display panel is reduced, thereby effectively improving the display quality of the display panel and ensuring that the display effect of the display panel is better; as shown in the figure, the resistance value of the first fan-out line 15 is a1, the resistance value B1 of the first impedance unit 131 corresponding to the first fan-out line 15, the resistance value of the second fan-out line 15 adjacent to the first fan-out line 15 is a2, the resistance value B2 of the first impedance unit 131 corresponding to the second fan-out line 15, that is, a1+ B1 is a2+ B2, the impedance of the first connection line 14 is a1, and the resistance value of the second impedance unit 132 is B1, so that the a1 is B1, thereby effectively ensuring that the driving signal of each scanning line 11 on the display panel keeps a normal waveform, and no waveform difference occurs, so that the color display of the display panel is more uniform, the display brightness of the display panel is ensured to be consistent, and the display quality of the display panel is further improved.
As shown in fig. 4, a fan-out area 16 is disposed at an edge of the substrate 10, the fan-out line 15 is disposed on the fan-out area 16, an insulating layer 17 is disposed on the fan-out area 16, the impedance module 13 includes an insulating layer 17, the fan-out line 15 and the impedance module 13 are conveniently disposed in the fan-out area 16, the fan-out line 15 or the connection line 14 is wound and routed on the insulating layer 17 by disposing the insulating layer 17 on the fan-out area 16, and the routing length of the fan-out line 15 on the insulating layer 17 is accurately calculated, so that the impedance difference between the fan-out line 15 or the connection line 14 can be effectively compensated, the impedance difference between two adjacent scan driving circuits 12 can be effectively improved, the color difference of the display panel is reduced, the display quality of the display panel is effectively improved; display panel includes the active switch, the active switch includes the protective layer, insulating layer 17 can set up with the protective layer together in same processing procedure, can effectively reduce display panel's manufacturing procedure, further saving manufacturing cost, do not need extra raw and other materials, reduce raw and other materials cost, the storage cost, the bill of materials need not increase new material, make things convenient for flow management and purchase, do not need extra equipment to set up insulating layer 17, can with one set of equipment of protective layer sharing, the later stage etching also need not extra equipment and material.
As shown in fig. 5, the insulating layer 17 includes a plurality of insulating protrusions, the insulating protrusions are arranged in a rectangular parallelepiped, the fan-out lines 15 are arranged on the insulating protrusions, the insulating protrusions are arranged in a one-to-one correspondence with the fan-out lines 15, the insulating protrusions are arranged in a rectangular parallelepiped, the fan-out lines 15 or the connecting lines 14 can be conveniently wound, the winding length can be calculated accurately, so that the impedance difference between the fan-out lines 15 or the connecting lines 14 can be compensated effectively, and the impedance difference between two adjacent scan driving circuits 12 can be improved effectively to reduce the color difference of the display panel; the fan-out wires 15 or the connecting wires 14 can be wound on the side surfaces and the top surfaces of the insulation protrusions, the fan-out wires 15 or the connecting wires 14 can be arranged on the bottom surfaces of the insulation protrusions, and the insulation layers 17 can effectively protect the fan-out wires 15 or the connecting wires 14, so that the fan-out wires 15 or the connecting wires 14 are more durable; if the fan-out wires 15 or the connecting wires 14 do not need to be compensated, the resistance values of the fan-out wires 15 or the connecting wires 14 can be ensured to be equal, and the wires can be routed from the bottom surfaces of the insulation protrusions; the optional insulating protrusion is a triangular prism, and can be in other irregular shapes capable of being wound with wires and the like.
Furthermore, the length of the insulating bulge is less than or equal to the length of the fan-out wire 15, the fan-out wire 15 is convenient to wind on the insulating bulge and is wired, the area of an original fan-out area 16 does not need to be changed, the fan-out wire 15 is wound on each surface of the insulating bulge, the length of the fan-out wire 15 or the length of the connecting wire 14 are effectively increased, the impedance difference between the fan-out wire 15 or the connecting wire 14 can be effectively compensated, the color difference of the display panel is reduced, the display quality of the display panel is effectively improved, and the display effect of the display panel is better.
Furthermore, the height of the insulating bulge is larger than the width of the fan-out wire 15, so that the fan-out wire 15 or the connecting wire 14 can be conveniently wound from the side face of the insulating bulge, the length of the fan-out wire 15 or the connecting wire 14 is effectively increased, the impedance difference between the fan-out wire 15 and the connecting wire 14 can be effectively compensated, the color display of the display panel is more uniform, the consistent display brightness of the display panel is ensured, and the display quality of the display panel is further improved.
Furthermore, the width of the insulation protrusion is larger than that of the fan-out wire 15, so that the fan-out wire 15 or the connecting wire 14 can be conveniently wound from the side surface of the insulation protrusion, the length of the fan-out wire 15 or the connecting wire 14 is effectively increased, the impedance difference between two adjacent scanning drive circuits 12 can be effectively improved, the color difference of the display panel is further improved, and the display quality of the display panel is further effectively improved.
Further, the distance between two adjacent insulation protrusions is greater than two times the thickness of the fanout line 15, as shown in fig. 4, the distance between two insulation protrusions is mlI.e. mlThe thickness of the fan-out wire 15 is larger than twice, so that the winding between two adjacent insulation bulges cannot interfere with each other, the fan-out wire 15 or the connecting wire 14 can be conveniently wound from the side face of the insulation bulge, the color of the display panel is more uniform, the consistent display brightness of the display panel is ensured, and the display effect of the display panel is further improved.
Furthermore, by changing the material of the fan-out line 15 between the scan driving circuit 12 and the gate line into a pure copper wire, the impedance inconsistency of the connecting line 14 caused by the difference of the length of the wire can be effectively improved.
In the above embodiments, the display panel includes a liquid crystal panel, an OLED (Organic Light-Emitting Diode) panel, a qled (quantum Dot Light Emitting diodes) panel, a plasma panel, a flat panel, a curved panel, and the like.
As shown in fig. 6, the present embodiment discloses a display device 100. The display device 100 includes a control unit 200 and a display panel 300 of the present invention, which is described in detail above by taking the display panel as an example, and it should be noted that the above description of the structure of the display panel is also applicable to the display device of the embodiment of the present invention. When the display device of the embodiment of the invention is a liquid crystal display, the liquid crystal display includes a backlight module, the backlight module can be used as a light source for supplying sufficient light sources with uniform brightness and distribution, the backlight module of the embodiment can be a front light type or a back light type, and it should be noted that the backlight module of the embodiment is not limited thereto.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and the practice of the invention is not to be considered limited to those descriptions. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (6)
1. A display panel, comprising:
a substrate;
a plurality of scanning lines formed in a display region of the substrate;
the active switch is formed in a display area of the substrate and is coupled with the scanning line;
the scanning driving circuits are arranged at the edge of the substrate and used for driving the scanning lines;
the connecting line is coupled with the two adjacent scanning driving circuits;
impedance modules are arranged on the scanning driving circuits, connecting lines are arranged among the scanning driving circuits, and the resistance value of the impedance module on the previous scanning driving circuit is equal to the sum of the resistance values of the connecting lines among all the subsequent scanning driving circuits;
the impedance module is arranged between the scanning driving circuit and the scanning line corresponding to the scanning driving circuit;
the impedance module comprises a first impedance unit, fan-out lines are arranged between the scanning drive circuit and the scanning lines, the fan-out lines and the first impedance units are arranged in one-to-one correspondence, and the first impedance units are arranged on the fan-out lines; the first impedance unit is used for improving the resistance value difference between all fan-out lines connected with the same scanning driving circuit;
the impedance module comprises a second impedance unit, the fanout line is electrically connected with the second impedance unit, and the second impedance unit is used for improving the impedance difference between two adjacent scanning driving circuits;
the impedance module comprises an insulating layer, the insulating layer comprises insulating bulges, the insulating bulges are cuboids, the fan-out wires or the connecting wires are wound on the side surfaces and the top surfaces of the insulating bulges, and the distance between every two adjacent insulating bulges is greater than twice the thickness of the fan-out wires;
and the first impedance unit and the second impedance unit are used for keeping the normal waveform of the driving signal of each scanning line on the display panel.
2. The display panel according to claim 1, wherein the sum of the resistances of all the fan-out lines of the scan driving circuit and the corresponding first impedance units is equal.
3. The display panel according to claim 1, wherein a length of the insulating protrusion is equal to or less than a length of the fanout line.
4. The display panel according to claim 1, wherein a height of the insulating protrusion is greater than a width of the fanout line.
5. The display panel according to claim 1, wherein a width of the insulating protrusion is larger than a width of the fanout line.
6. A display device, comprising:
a control section, and a display panel according to any one of claims 1 to 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072254.4A CN107808638B (en) | 2017-11-03 | 2017-11-03 | Display panel and display device |
| PCT/CN2017/115612 WO2019085160A1 (en) | 2017-11-03 | 2017-12-12 | Display panel and display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711072254.4A CN107808638B (en) | 2017-11-03 | 2017-11-03 | Display panel and display device |
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| Publication Number | Publication Date |
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| CN107808638A CN107808638A (en) | 2018-03-16 |
| CN107808638B true CN107808638B (en) | 2021-07-09 |
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| CN201711072254.4A Active CN107808638B (en) | 2017-11-03 | 2017-11-03 | Display panel and display device |
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| WO (1) | WO2019085160A1 (en) |
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| CN112967663B (en) * | 2020-11-16 | 2022-08-05 | 重庆康佳光电技术研究院有限公司 | LED driving method and driving device |
| CN115862516A (en) * | 2022-12-23 | 2023-03-28 | Tcl华星光电技术有限公司 | Display device and driver |
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| WO2019085160A1 (en) | 2019-05-09 |
| CN107808638A (en) | 2018-03-16 |
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