CN107703688B - Array substrate and display device - Google Patents
Array substrate and display device Download PDFInfo
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- CN107703688B CN107703688B CN201710898913.3A CN201710898913A CN107703688B CN 107703688 B CN107703688 B CN 107703688B CN 201710898913 A CN201710898913 A CN 201710898913A CN 107703688 B CN107703688 B CN 107703688B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13454—Drivers integrated on the active matrix substrate
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
Abstract
The invention relates to an array substrate and a display device, which are used for solving the problem that in the conventional special-shaped display screen, each gate driving circuit in a gate driver cannot be arranged on the same horizontal line with a gate line correspondingly connected with the gate driving circuit, and the wiring requirement of the special-shaped display gate driving circuit cannot be met. The array substrate comprises a substrate, a plurality of gate lines and at least one gate driver; the grid driver comprises a first driving circuit, a fan-out line and a second driving circuit which are arranged in sequence along the extending direction of the edge of the display area; the first driving circuits and the second driving circuits are equal in number and are connected in a one-to-one correspondence mode through fanout lines; each second driving circuit is respectively connected with one gate line; the second driving circuit comprises a same-direction arrangement circuit and a staggered arrangement circuit. Because the fan-out line is connected with the grid line through the second driving circuit, the resistance and the parasitic capacitance added by the fan-out line are not directly transmitted to the grid line, and the uniformity of the display brightness is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to an array substrate and a display device.
Background
With the rapid development of display screen technology, in addition to the traditional functions of information display and the like, the requirements on the appearance of the display screen are gradually improved in order to better adapt to the overall structure and the use requirements of the environment, and accordingly, a special-shaped display screen is generated, wherein the special-shaped display screen is a liquid crystal display screen with a special shape and size compared with the original conventional liquid crystal display screen.
The existing display screen generally includes a pixel unit, a gate driver, and the like. The gate driver is used for sequentially opening corresponding pixel rows in the pixel units so as to transmit pixel data to each pixel, and further displaying an image to be displayed. The gate driver is generally composed of a plurality of cascaded gate driving circuits, each of which is connected to a corresponding gate line and sequentially outputs scanning signals to the gate lines in a scanning direction under the control of various signals.
As shown in fig. 1, fig. 1 is a schematic top view of a display panel in the prior art, in which a display area is rectangular, a gate driving circuit 1 in a gate driver is directly connected to a corresponding gate line 2, and the two gate driving circuits are located on the same horizontal line; as shown in fig. 2, fig. 2 is a schematic top view structure diagram of a special-shaped display screen in the prior art, and the four corners of the non-display area B of the display screen are not right angles, and the four corners of the display area a have a certain radian, so that if a gate driver is disposed in the non-display area B of the display screen shown in fig. 2, each gate driving circuit in the gate driver cannot be disposed on the same horizontal line with the corresponding connected gate line, which presents a higher challenge to the wiring of the special-shaped display screen.
Disclosure of Invention
The invention aims to provide an array substrate and a display device, which are used for solving the problem that in the conventional special-shaped display screen, each gate driving circuit in a gate driver cannot be arranged on the same horizontal line with a correspondingly connected gate line, and the wiring requirement of the special-shaped display gate driving circuit cannot be met.
The embodiment of the invention provides an array substrate, wherein a display area of the array substrate comprises a rectangular display area with a straight line edge and an irregular display area with a curve edge; the array substrate includes: the array substrate comprises a substrate base plate, a plurality of grid lines and at least one grid driver, wherein the grid lines are arranged on the substrate base plate in parallel, and the at least one grid driver is connected with the grid lines and arranged in a non-display area of the array base plate; wherein the content of the first and second substances,
the gate driver comprises a first driving circuit, a fan-out line and a second driving circuit which are arranged along the direction from the non-display area to the display area;
the first drive circuit, the fan-out line and the second drive circuit are arranged in sequence along the extending direction of the edge of the display area;
the first driving circuits and the second driving circuits are equal in number and are connected in a one-to-one correspondence mode through the fanout lines; each second driving circuit is respectively connected with one gate line;
the first driving circuits are arranged along the same direction and are positioned in a plane area of the rectangular display area extending along the direction of the first driving circuits;
the second driving circuit comprises a homodromous arrangement circuit and a staggered arrangement circuit; the same-direction arrangement circuits are arranged along the same direction and are positioned in the area of the rectangular display area extending along the direction of the same-direction arrangement circuits; the staggered arrangement circuit is staggered along the edge of the special-shaped display area and is positioned in an area of the special-shaped display area extending along the direction of the staggered arrangement circuit.
The embodiment of the invention also provides a display device, which comprises the array substrate provided by the embodiment of the invention.
The invention has the following beneficial effects:
the gate driver in the array substrate provided by the embodiment of the invention comprises the first driving circuit, the fan-out line and the second driving circuit which are arranged along the direction from the non-display area to the display area, and the fan-out line is connected with the gate line through the second driving circuit, so that the resistance and parasitic capacitance increased by the fan-out line are used, the resistance and parasitic capacitance cannot be directly transmitted to the gate line, the gate line cannot be influenced, and the brightness uniformity of the array substrate when the array substrate is used as a display device for displaying is further improved; the second driving circuit comprises the equidirectional arrangement circuit and the staggered arrangement circuit, and the staggered arrangement circuit in the second driving circuit is sequentially arranged along the curve edge of the special-shaped display area in the special-shaped display area, so that the layout space is more fully utilized, and the special-shaped display screen is more suitable for designing the special-shaped display screen.
Drawings
FIG. 1 is a schematic top view of a display panel in the prior art;
FIG. 2 is a schematic top view of a prior art display screen with a special shape;
fig. 3 is a schematic top view of the special-shaped display screen shown in fig. 2 provided with a gate driver according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an array substrate according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The size and shape of the various components in the drawings are not to scale relative to the actual scale of the array substrate, and are intended to be illustrative only.
Since the main improvement portion of the present invention is the gate driver portion on the array substrate, the specific structure of the gate driver portion on the array substrate is mainly described in the embodiments of the present invention, and the structure of other portions on the array substrate can be referred to the prior art and will not be described herein too much.
The array substrate provided by the embodiment of the invention is suitable for various types of display screens such as an Organic Light-Emitting Diode (OLED) display screen and a liquid crystal display screen, and the array substrate is mainly an improvement on the structure of a gate driver, is suitable for display screens in any shapes, especially for the existing special-shaped display screen, and can be applied to special-shaped display screens in other shapes besides the special-shaped display screen in the shape shown in fig. 2, for example, special-shaped display screens in structures of fan-shaped, arc-shaped, circular, cylindrical, triangular and the like.
In the prior art, if a gate driver is disposed in the non-display area B of the display screen shown in fig. 2, a structure as shown in fig. 3 may be formed, and fig. 3 is a schematic top view structure diagram of the gate driver disposed in the special-shaped display screen shown in fig. 2 according to the embodiment of the present invention; since the four corners of the non-display area B of the display screen in fig. 2 are not right angles and the four corners of the display area a have a certain radian, each gate driving circuit in the gate driver cannot be arranged on the same horizontal line with the corresponding gate line connected thereto, when designing the gate driver, the inventor compresses each gate driving circuit 1 in the gate driver along the arrangement direction to save the layout space, and connects the gate driving circuit with the corresponding gate line 2 through the fan-out line 3, and the line in the display area a in fig. 2 is the gate line 2; and a line located in the non-display area B and connecting the gate driving circuit 1 and the gate line 2 is a fanout line 3. The inventor finds through tests that the layout manner shown in fig. 3, the use of the fanning-out line 3 increases the resistance and parasitic capacitance on the gate line, and causes a load difference between rows of the gate line, and the capacitance difference caused by this design affects the gate signal line, and even causes the display brightness of the display screen to be uneven.
In order to solve the problem existing in the irregular display screen shown in fig. 3, an embodiment of the present invention provides a structure of an array substrate, as shown in fig. 4, fig. 4 is a schematic structural diagram of an array substrate provided in the embodiment of the present invention, for convenience of description, each gate driver in the embodiment of the present invention only draws 13 first driving circuits and 13 second driving circuits, and in actual manufacturing, the shape of the array substrate is not limited to include 13 first driving circuits and 13 second driving circuits, and may have a plurality of different shapes. The display area of the array substrate provided by the embodiment of the invention comprises a rectangular display area with a straight line edge and a special-shaped display area with a curve edge; the array substrate includes: the array substrate comprises a substrate base plate, a plurality of grid lines and at least one grid driver, wherein the grid lines are arranged on the substrate base plate in parallel, and the at least one grid driver is connected with the grid lines and arranged in a non-display area of the array base plate; the grid driver comprises a first driving circuit, a fan-out line and a second driving circuit which are sequentially arranged along the direction from the non-display area to the display area; the first drive circuit, the fan-out line and the second drive circuit are arranged in sequence along the extending direction of the edge of the display area; the first driving circuits and the second driving circuits are equal in number and are connected in a one-to-one correspondence mode through fanout lines; each second driving circuit is respectively connected with one gate line; the first driving circuits are arranged along the same direction and are positioned in a plane area of the rectangular display area extending along the direction of the first driving circuits; the second driving circuit comprises a homodromous arrangement circuit and a staggered arrangement circuit; the homodromous circuit is arranged along the same direction and is positioned in the area of the rectangular display area extending along the direction of the homodromous circuit; the staggered circuit is staggered along the edge of the special-shaped display area and is positioned in the special-shaped display areaIn the region extending in the direction of the staggered circuit arrangement. In order to clearly illustrate the structure of the array substrate provided by the embodiment of the invention, the display area a is divided into rectangular display areas a1And a special-shaped display area A2But actually A1And A2The display area a may be different portions in the same display area a, and in specific implementation, the display area a may be divided according to shapes of the array substrate and the display area, and different dividing manners may be provided for different shapes, which is not limited herein.
The array substrate provided by the embodiment of the invention is mainly directed to a display screen with at least partial straight line edges, as shown in fig. 4, which is a schematic structural diagram of the array substrate provided by the embodiment of the invention, four corners of a display area a have radians, so that it can be assumed that the display area is divided into a rectangular display area a in the middle1And special-shaped display areas A respectively positioned at the upper side and the lower side2The area around the display area in fig. 4 is a non-display area B. The general array substrate includes a substrate 10, and also includes a gate line 11 and a gate driver 12 a. Wherein, the gate lines 11 are disposed in parallel on the substrate 10 and have a plurality of strips; and the gate driver is generally disposed in the non-display area B and connected to the gate line 11.
Specifically, the number and the positions of the gate drivers may be set according to factors such as a driving mode of the array substrate, and the array substrate includes two gate drivers, and the two gate drivers are respectively located at two sides of the display area. Fig. 4 shows a cross-drive array substrate according to the present invention, which includes two gate drivers respectively located at the left and right sides of a display area a, and two adjacent gate lines are respectively connected to the two gate drivers at the left and right sides, so that the width of the gate drivers in the arrangement direction can be reduced; of course, the present invention can also be applied to array substrates of other driving types, for example, an array substrate of a single-side driving type or a double-side driving type, as required, and the connection manner between the gate driver and the gate line in array substrates of different driving types will be described in detail later.
In specific implementation, in the special-shaped display screen shown in fig. 3 provided by the embodiment of the present invention, the gate driver includes a gate driving circuit and a fanout line for connecting the gate driving circuit and the gate line; the array substrate shown in fig. 4 provided in the embodiment of the present invention includes two gate drivers, i.e., a gate driver 12a and a gate driver 12b, which have similar structures, and the following description only takes the gate driver 12a as an example to describe in detail, and the structure of the gate driver 12b may refer to the description of the gate driver 12a and is not repeated.
The gate driver 12a of the present invention includes a plurality of first driving circuits 121 sequentially arranged along a direction in which an edge of the display region extends, a fan-out line 122 for connecting the first driving circuits 121 and the second driving circuits 123, and a plurality of second driving circuits 123 sequentially arranged along a direction in which the edge of the display region extends. In fig. 4, the line in the display area a is the gate line 11, and the line in the non-display area B for connecting the first driving circuit 121 and the second driving circuit 123 is the fanning-out line 122, and most of the fanning-out lines are broken lines in the figure so as to connect the corresponding first driving circuit 121 and the second driving circuit 123. In the figure, the fan-out lines 122 are only simple schematic diagrams, and in order to show the positions where the fan-out lines are arranged and each fan-out line is correspondingly connected with one gate driving circuit 121 and one gate line 11, but not to represent a real structural diagram of the fan-out lines, a person skilled in the art may set the structure of the fan-out lines according to needs, or replace the fan-out lines with other connecting lines according to needs.
The first driving circuit 121, the fanout line 122 and the second driving circuit 123 are sequentially arranged along the non-display area B toward the display area a (i.e., the x-axis in fig. 4); meanwhile, although the sizes of the first driving circuit 121 and the second driving circuit 123 are different in fig. 4, the number of the first driving circuit 121 and the second driving circuit 123 is equal (13 driving circuits are drawn in fig. 4), and the first driving circuit 121 and the second driving circuit 123 are connected in a one-to-one correspondence manner through the fanout lines 122; in addition, each of the second driving circuits 123 is connected to one of the gate lines 11, that is, each of the first driving circuits 121 is connected to one of the second driving circuits 123 through a fanout line and is correspondingly connected to one of the gate lines. The fan-out line passes through the second drive circuit and the gate lineTherefore, the resistance and parasitic capacitance added on the fan-out line cannot be directly transmitted to the gate line, and compared with the structure in fig. 3 in the prior art, the influence on the gate line can be reduced, so that the load difference between the rows of the gate line can be reduced, and the brightness uniformity of the array substrate when the array substrate is used as a display device is improved. In a specific implementation, the first driving circuits 121 are arranged along the same direction (i.e., the y-axis direction), and some of the first driving circuits 121 may be arranged along the same direction; of course, in order to save the layout space, as shown in fig. 4, all the first driving circuits 121 may be arranged along the edge direction of the rectangular display area, so that the first driving circuits 121 are arranged more closely, and the width of the frame is not increased; in addition, since the four corners of the substrate are not right angles, in order to save layout space, the first driving circuit 121 needs to be compressed in the arrangement direction, and the area occupied by the arrangement of the first driving circuit 121 and the rectangular display area a are compared with the arrangement structure of the gate driving circuit in fig. 1 in the prior art1Correspondingly, the first driving circuit 121 is located in the rectangular display area a in fig. 41A planar region extending to the left (i.e., dotted line X)2And dotted line X3The area in between).
Accordingly, the second driving circuit 123 does not need to be compressed in the arrangement direction compared to the arrangement of the first driving circuit 121, and the second driving circuit in the gate driver includes two misalignment arrangement circuits 123b and a homodromous arrangement circuit 123a between the two misalignment arrangement circuits. In fig. 4, the equidirectional alignment circuit 123a is located in the middle and aligned along the same direction (i.e., the y-axis direction), and some of the equidirectional alignment circuits 123a may be aligned along the same direction; of course, in order to save the layout space, as shown in fig. 4, all the equidirectional arrangement circuits 123a are arranged along the edge direction of the rectangular display area, so that the equidirectional arrangement circuits 123a are arranged more closely, and the width of the frame is not increased additionally; the area occupied by each of the homodyne circuits 123a is opposite to the area occupied by the first drive circuit 121, and is equal to the rectangular display area a1Correspondingly, the same-direction arrangement circuit 123a is located in the rectangular display area A in FIG. 41A planar region extending to the left (i.e. located in dotted line X)2And dotted line X3The area in between).
The two staggered circuits 123b in fig. 4 are respectively located at the upper and lower sides of the equidirectional circuit 123a, and the area occupied by the staggered circuits 123b and the special-shaped display area a2Correspondingly, the arrangement is along the special-shaped display area A2Are sequentially arranged in a staggered manner in the direction of edge extension, that is, the staggered circuit 123b is positioned in the special-shaped display area A in FIG. 42A planar region extending to the left (i.e. located in dotted line X)1And dotted line X2And a dotted line X3And dotted line X4The area in between), are all along the proximity of the special-shaped display area A2Are arranged in a staggered manner. The second driving circuit comprises a homodromous arrangement circuit and a staggered arrangement circuit, so the second driving circuit does not need to be compressed and can be directly connected with each gate line; in addition, in the special-shaped display area, the staggered arrangement circuit in the second driving circuit is sequentially arranged along the curve edge of the special-shaped display area, so that the layout space is more fully utilized, and the special-shaped display screen is more suitable for design of special-shaped display screens.
In specific implementation, the first driving circuits 121 may be set to the same size as shown in fig. 4, for example, to have widths of 180 μm in the y-axis direction; also, the second driving circuits 123 are also set to the same size, for example, each set to a width of 200 μm in the y-axis direction, and the first driving circuits 121 are compressed in the y-axis direction compared to the second driving circuits 123, and therefore, they need to be connected in a one-to-one correspondence via the fanout lines 122. In practice, however, the manufacturing sizes are not necessarily all the same, and different sizes may be set according to the needs, and only the same type of driving circuits are set to the same size, so that the arrangement of the driving circuits can be more compact, and the arrangement of the gate lines connected to the second driving circuits can be uniform. It should be noted that, the first driving circuits 121 are all set to have a width of 180 micrometers in the y-axis direction, and the second driving circuits 123 are all set to have a width of 200 micrometers in the y-axis direction, which is only an example, and compared with the second driving circuits 123, the first driving circuits 121 are equivalent to being compressed in the y-axis direction, and do not limit the protection scope of the present invention, and a person skilled in the art may set the width of the first driving circuits 121 in the y-axis direction and the width of the second driving circuits 123 in the y-axis direction according to requirements.
In addition, the array substrate provided by the embodiment of the present invention is not limited to the case of fig. 4, and may be extended to array substrates with other structural shapes according to actual needs, and fig. 4 is only used for explaining the present invention and is not used for limiting the present invention. For example, when the array substrate is a circular panel, the first driving circuit and the second driving circuit may be disposed in a staggered arrangement structure arranged along the edge of the display area, and connected by a fan-out line, and the second driving circuit is connected to the gate line.
In a specific implementation, each gate driving circuit in the gate driver shown in fig. 3 is directly connected to the corresponding gate line 2 through the fan-out line 3, and the use of the fan-out line 3 affects the gate signal lines, so as to reduce the influence of the fan-out line on the gate lines. Compared with the arrangement structure of the gate driving circuit in the prior art shown in fig. 1, the gate driver provided in the embodiment of the invention has the advantages that the first driving circuit 121 needs to be compressed in the y-axis direction, the second driving circuit 123 does not need to be compressed in the y-axis direction, and the second driving circuit can be uniformly arranged in the area corresponding to the display area.
Optionally, each second driving circuit and the corresponding connected gate line are located on the same horizontal line. As shown in fig. 4, each second driving circuit is connected to one gate line, and the gate lines connected to the gate drivers on both sides are arranged in a crossing manner, and meanwhile, each second driving circuit and the corresponding gate line connected to each second driving circuit are located on the same horizontal line, and the sizes of the second driving circuits are the same, so that the arrangement of the gate lines is more uniform, which is beneficial to the arrangement of the pixel units.
Since the first driving circuit 121 needs to be compressed in the y-axis direction and the second driving circuit 123 does not need to be compressed in the y-axis direction compared to the structure in fig. 1 of the related art, alternatively, the width of the single first driving circuit in the arrangement direction is smaller than the width of the single second driving circuit in the arrangement direction.
In particular, since the first driving circuits 121 need to be compressed in the arrangement direction, the width d of the single first driving circuit 121 in the y-axis direction1Is smaller than the width d of the single second drive circuit along the y-axis direction2. For example, the width d of the single first driving circuit 121 in the y-axis direction is generally1May be set to be about 180 micrometers with a single second drive circuit having a width d in the y-axis direction2It can be set to around 200 microns.
The second driving circuit comprises a homodromous arrangement circuit and a staggered arrangement circuit; as shown in FIG. 4, the first driving circuit and the equidirectional arrangement circuit correspond to each other and correspond to the rectangular display area A1Correspond, i.e. are located in the rectangular display area A1In the area of the plane extending to the left. Optionally, a total width of the first driving circuits in the arrangement direction is not greater than a total width of the equidirectional arrangement circuits in the arrangement direction.
In one embodiment, as shown in FIG. 4, the total width of all the circuits arranged in the same direction along the y-axis is generally equal to the total width of the rectangular display area A1The widths in the y-axis direction are equal, and the total width of all the first driving circuits in the arrangement direction is not greater than the total width of all the same-direction arrangement circuits in the arrangement direction.
The gate driver provided by the embodiment of the invention can be applied to a cross-drive type array substrate and can also be applied to a double-side drive type array substrate. Optionally, every two adjacent gate lines are respectively connected to the second driving circuit of the two gate drivers; or, both ends of each gate line are respectively connected to the second driving circuits of the two gate drivers.
In a specific implementation, when the array substrate is of a cross-drive type, as shown in fig. 4, every two adjacent gate lines of the gate lines arranged in parallel are respectively connected to two different gate drivers, that is, as shown in fig. 4, the array substrate includes two gate drivers, and every two adjacent gate lines of the gate lines are respectively connected to the second driving circuit of the two left and right gate drivers. When the array substrate is of a dual-side driving type, two ends of each gate line in parallel arrangement are respectively connected to two different gate drivers, namely, each gate line is respectively connected to second driving circuits of the left and right gate drivers. When the gate driver provided by the embodiment of the invention is applied to the array substrate of the single-side driving type, each of the gate lines arranged in parallel is connected to a different second driving circuit in the same gate driver.
The gate driver provided by the embodiment of the invention comprises a first driving circuit, a fan-out line and a second driving circuit, wherein optionally, the first driving circuit and the second driving circuit which is correspondingly connected form a gate driving circuit. That is, a complete gate driving circuit is composed of a first driving circuit and a second driving circuit.
In specific implementation, the gate driving circuit usually employs a shift register, and the shift register is generally composed of a memory, a nand gate, a transmission gate and an inverter, and optionally, the first driving circuit includes a memory, a nand gate and a transmission gate; the second drive circuit includes an inverter. In this structure, for example, as in the structure shown in fig. 4, the width of the first drive circuit in the x-axis direction may be set to about 200 micrometers, and the width of the second drive circuit in the x-axis direction may be set to about 100 micrometers.
In addition, the types of components provided in the first driving circuit and the second driving circuit may also be modified according to the type of the gate driving circuit and the spatial layout size of the first driving circuit and the second driving circuit, and are not limited to this arrangement, for example, the first driving circuit may be provided to include a storage and a nand gate, and the second driving circuit may include a transmission gate and an inverter. When the components in each driving circuit are different, the sizes of the driving circuits in the x-axis direction are different, and the special-shaped display screens with different shapes and sizes can be suitable by adjusting the sizes of the driving circuits. For example, when the first driving circuit includes a storage and a nand gate, the second driving circuit includes a transmission gate and an inverter; the width of the first drive circuit in the x-axis direction may be set to be about 150 micrometers, and the width of the second drive circuit in the x-axis direction may be set to be about 150 micrometers.
It should be noted that the special-shaped display screen in the embodiment of the present invention is not limited to the special-shaped display screen in which all 4 corners of the display area include radians, and the special-shaped display screen in which the gate driving circuit in the non-display area needs to be compressed is within the protection scope of the present invention by using the layout manner of the gate driver in the present invention as long as at least one corner of the display area includes radians; the invention is not limited to that the 4 corners of the non-display area are tangent corners drawn in the drawing, and at least one of the 4 corners of the non-display area can also contain a radian, so long as at least one corner of the non-display area contains the radian, and a special-shaped display screen which needs to compress a gate drive circuit of the non-display area adopts the layout mode of the gate driver in the invention, and the invention is within the protection scope of the invention.
Based on the same inventive concept, the embodiment of the invention further provides a display device, which includes the array substrate provided by the embodiment of the invention. The display device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like. Because the principle of the display device for solving the problems is similar to that of the array substrate provided by the embodiment of the invention, the implementation of the display device can refer to the implementation of the array substrate, and repeated details are not repeated.
In summary, the gate driver in the array substrate provided by the embodiment of the invention includes the first driving circuit, the fan-out line and the second driving circuit arranged along the direction from the non-display area to the display area, and because the fan-out line is connected with the gate line through the second driving circuit in the invention, the resistance and parasitic capacitance added on the fan-out line cannot be directly transmitted to the gate line, the influence on the gate line can be reduced, so that the load difference between the rows of the gate line can be reduced, and the brightness uniformity of the array substrate when used as a display device for displaying can be improved; the second driving circuit comprises a homodromous arrangement circuit and a staggered arrangement circuit, the second driving circuit does not need to be compressed and can be directly connected with each grid line, wherein the staggered arrangement circuits in the second driving circuit are sequentially arranged along the curve edge of the special-shaped display area in the special-shaped display area, so that the layout space is more fully utilized, and the special-shaped display screen is more suitable for designing special-shaped display screens.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. An array substrate, a display area of the array substrate comprises a rectangular display area with straight line edges and a special-shaped display area with curve edges; the array substrate includes: the array substrate comprises a substrate base plate, a plurality of grid lines and at least one grid driver, wherein the grid lines are arranged on the substrate base plate in parallel, and the at least one grid driver is connected with the grid lines and arranged in a non-display area of the array base plate; wherein the content of the first and second substances,
the grid driver comprises a first driving circuit, a fan-out line and a second driving circuit which are sequentially arranged along the direction from the non-display area to the display area;
the first drive circuit, the fan-out line and the second drive circuit are arranged in sequence along the extending direction of the edge of the display area;
the first driving circuits and the second driving circuits are equal in number and are connected in a one-to-one correspondence mode through the fanout lines; each second driving circuit is respectively connected with one gate line;
the first driving circuits are arranged along the same direction and are positioned in a plane area of the rectangular display area extending along the direction of the first driving circuits;
the second driving circuit comprises a homodromous arrangement circuit and a staggered arrangement circuit; the same-direction arrangement circuits are arranged along the same direction and are positioned in the area of the rectangular display area extending along the direction of the same-direction arrangement circuits; the staggered arrangement circuit is staggered along the edge of the special-shaped display area and is positioned in an area of the special-shaped display area extending along the direction of the staggered arrangement circuit.
2. The array substrate of claim 1, wherein each of the second driving circuits and the corresponding connected gate line are located on a same horizontal line.
3. The array substrate of claim 1, wherein a width of a single one of the first driving circuits in the array direction is smaller than a width of a single one of the second driving circuits in the array direction.
4. The array substrate of claim 1, wherein a total width of the first driving circuits in the arrangement direction is not greater than a total width of the same-direction arrangement circuits in the arrangement direction.
5. The array substrate of claim 1, wherein the array substrate comprises two gate drivers, and the two gate drivers are respectively located at two sides of the display area.
6. The array substrate of claim 5, wherein every two adjacent gate lines are respectively connected to the second driving circuit of the two gate drivers; or the like, or, alternatively,
both ends of each gate line are connected to the second driving circuit of the two gate drivers, respectively.
7. The array substrate of claim 1, wherein the first driving circuit comprises a memory, a nand gate and a transmission gate; the second drive circuit includes an inverter.
8. The array substrate of any one of claims 1-7, wherein each of four corners of the display area has a curvature; the display area comprises two special-shaped display areas and a rectangular display area positioned between the two special-shaped display areas;
the second driving circuit in the gate driver includes two staggered circuits and a same-direction circuit between the two staggered circuits.
9. A display device comprising the array substrate of any one of claims 1 to 8.
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| CN108646474A (en) * | 2018-03-27 | 2018-10-12 | 上海天马微电子有限公司 | Array substrate, display panel and display device |
| CN108648695B (en) * | 2018-05-14 | 2021-06-11 | 昆山国显光电有限公司 | Display panel, touch display panel and touch display device |
| CN108803172B (en) * | 2018-06-29 | 2021-08-10 | 上海中航光电子有限公司 | Array substrate, display panel and display device |
| CN108807488A (en) * | 2018-06-29 | 2018-11-13 | 武汉天马微电子有限公司 | Display panel and display device |
| CN108877624B (en) * | 2018-06-29 | 2021-05-25 | 武汉天马微电子有限公司 | Special-shaped display panel and display device |
| CN109147690A (en) * | 2018-08-24 | 2019-01-04 | 惠科股份有限公司 | Control method and device, controller |
| CN109192137B (en) * | 2018-10-30 | 2021-06-29 | 昆山国显光电有限公司 | Display and display panel thereof |
| CN109375443B (en) * | 2018-12-25 | 2021-04-30 | 厦门天马微电子有限公司 | Display panel and display device |
| CN117337628A (en) * | 2022-03-25 | 2024-01-02 | 京东方科技集团股份有限公司 | Display substrate, manufacturing method thereof and display device |
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