TW202032238A - Pixel array substrate and driving method thereof - Google Patents

Abstract

A pixel array substrate includes a substrate, data lines, gate lines, pixels and transfer lines. The data lines are disposed on the substrate and arranged in a first direction. The gate lines are disposed on the substrate and arranged in a second direction. The first direction is interlaced with the second direction. The pixels are disposed on the substrate. Each of the pixel includes an active device and a pixel electrode, the active device is electrically connected to one of the data lines and one of the gate lines, and the pixel electrode is electrically connected to the active device. The transfer lines are arranged in the first direction and electrically connected to the gate lines, respectively. The pixels includes first pixels. In a top view of the pixel array substrate, at least one of pixel electrodes of the first pixels partially overlaps with one of the transfer lines. Moreover, a driving method for the pixel array substrate is also provided.

Description

Pixel array substrate and its driving method

The invention relates to a pixel array substrate and a driving method thereof.

With the development of display technology, people's needs for display devices are no longer satisfied with optical characteristics such as high resolution, high contrast, and wide viewing angles. People also expect display devices to have an elegant appearance. For example, people expect the display device to have a narrow frame or even no frame.

Generally speaking, the display device includes a pixel array arranged in the display area, a data drive circuit arranged under the display area, and a gate drive circuit arranged on the left, right, or left and right sides of the display area. In order to reduce the width of the left and right sides of the frame of the display device, both the gate drive circuit and the data drive circuit can be arranged on the lower side of the display area. When the gate drive circuit is arranged on the lower side of the display area, the gate line extending in the horizontal direction must be electrically connected to the gate drive circuit arrangement through the patch cord extending in the vertical direction. However, the patch cords must occupy the layout area of the display area, and make the lines in the display area more numerous, which affects the aperture ratio and manufacturing yield of the pixel array substrate of the display device.

The invention provides a pixel array substrate with good characteristics.

The present invention provides another pixel array substrate with good characteristics.

A pixel array substrate of the present invention includes a substrate, multiple data lines, multiple gate lines, multiple pixels, and multiple transfer wires. A plurality of data lines are arranged on the substrate and arranged in the first direction. A plurality of gate lines are arranged on the substrate and arranged in the second direction. The first direction is staggered with the second direction. A plurality of pixels are arranged on the substrate. Each pixel includes an active device and a pixel electrode. The active device is electrically connected to a data line and a gate line, and the pixel electrode is electrically connected to the active device. The multiple transfer wires are arranged in the first direction and are electrically connected to the multiple gate wires respectively. The plurality of pixels includes a plurality of first pixels. In the top view of the pixel array substrate, at least one of the pixel electrodes of the first pixels partially overlaps with a patch cord.

In an embodiment of the present invention, the aforementioned plurality of pixels further includes a plurality of second pixels, and at least one of the second pixels further includes a common electrode. In the top view of the pixel array substrate, the pixel electrode of the second pixel partially overlaps the common electrode of the second pixel, the common electrode of the second pixel overlaps with the transfer line, and the pixel of the second pixel There is a gap between the electrode and the patch cord.

In an embodiment of the present invention, the aforementioned patch cord has a first part and a second part that are connected. In the top view of the pixel array substrate, the first part of the transfer line partially overlaps with the pixel electrode of the first pixel, and the above gap exists between the second part of the transfer line and the pixel electrode of the second pixel , And the line width of the first part of the patch cord is greater than the line width of the second part of the patch cord.

In an embodiment of the present invention, the above-mentioned patch cord has a second part. In the top view of the pixel array substrate, the above-mentioned gap exists between the second part of the transfer line and the pixel electrode of the second pixel. The line width of the second part of the patch cord is smaller than the line width of the common electrode of the second pixel.

In an embodiment of the present invention, the multiple pixels described above further include multiple second pixels. Each second pixel includes a common electrode. In the top view of the pixel array substrate, the pixel electrode of each second pixel partially overlaps the common electrode of the second pixel, and the common electrode of each second pixel overlaps with a corresponding transfer line, and There is a gap between the pixel electrode of each second pixel and the transfer line. The multiple pixels include multiple pixel groups. The at least one pixel group includes n second pixels and a first pixel sequentially arranged along a transition line. The pixel array substrate further includes an insulating layer sandwiched between a plurality of gate lines and a plurality of transfer wires. The insulating layer has a plurality of first through holes. The n second pixels of a pixel group include the first to n second pixels arranged in sequence, wherein the active element of the first second pixel is electrically connected to a gate line, and a transfer line A first through hole through the insulating layer is electrically connected to the gate line; n is a positive integer greater than or equal to 2.

In an embodiment of the present invention, each of the above-mentioned pixel groups includes n second pixels and a first pixel arranged in sequence along a transition line, and n second pixels in each pixel group The pixels include the first to n second pixels arranged in sequence; the active element of the first second pixel is electrically connected to a gate line, and a transfer wire passes through a first through hole of the insulating layer. Is connected to the gate line; the first pixel of each pixel group is the one of the multiple second pixels in the pixel group that is closest to the pixel group; the multiple first pixels of the multiple pixel groups The elements are essentially arranged in a stepped manner.

In an embodiment of the present invention, the aforementioned pixel array substrate further includes an insulating layer. The insulating layer has a plurality of second through holes. A patch cord includes a main part and an auxiliary part. The insulating layer is sandwiched between the main part and the auxiliary part. The main part crosses multiple gate lines, and the auxiliary part is arranged between two adjacent gate lines and is connected to the second The pixel electrodes of one pixel are partially overlapped, and two different regions of the main part are electrically connected to both ends of the auxiliary part through a plurality of second through holes of the insulating layer.

A driving method of a pixel array substrate of the present invention is used to drive the above-mentioned pixel array substrate, wherein the driving method includes the following steps: in a first time interval, electrically connecting to the first pixel group of a pixel group A gate line of two pixels has a gate-on potential; and, in the second time interval, the other gate line electrically connected to the first pixel of the pixel group has a gate-on potential, wherein The first time interval and the second time interval do not overlap in time sequence.

Another pixel array substrate driving method of the present invention is used to drive the above pixel array substrate. The multiple gate lines of the pixel array substrate are divided into multiple gate line groups, and each gate line group includes m Gate lines, m is a positive integer greater than or equal to 1, and the driving method includes the following steps: make m gate lines of the same gate line group open at the same time, and when each gate line group is opened, the gate Each of the m gate lines of the pole line group has a gate-on pulse; and sequentially turns on a plurality of gate line groups with a time delay, wherein the time length of the time delay is t, the time length of the gate pulse Is T, and n≥{[(Tt)/t]*m}+m.

Another pixel array substrate of the present invention includes a substrate, multiple data lines, multiple gate lines, multiple pixels, multiple transition wires, and shielding electrodes. A plurality of data lines are arranged on the substrate and arranged in the first direction. A plurality of gate lines are arranged on the substrate and arranged in a second direction, wherein the first direction and the second direction are staggered. A plurality of pixels are arranged on the substrate, and each pixel includes an active device and a pixel electrode. The active device is electrically connected to a corresponding data line and a gate line, and the pixel electrode is electrically connected to the active device. The multiple transfer wires are arranged in the first direction and are electrically connected to the multiple gate wires respectively. In the top view of the pixel array substrate, there is a gap between the pixel electrode of at least one pixel and a transfer line, the shield electrode is separated from the pixel electrode of the pixel, and the shield electrode overlaps the transfer line.

In order to make the above-mentioned features and advantages of the present invention more comprehensible, the following specific embodiments are described in detail in conjunction with the accompanying drawings.

Reference will now be made in detail to the exemplary embodiments of the present invention, and examples of the exemplary embodiments are illustrated in the accompanying drawings. Whenever possible, the same component symbols are used in the drawings and descriptions to indicate the same or similar parts.

It should be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected" to another element, it can be directly on or connected to the other element, or Intermediate elements may also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements. As used herein, "connected" can refer to physical and/or electrical connection. Furthermore, "electrically connected" or "coupled" may mean that there are other elements between two elements.

As used herein, "about", "approximately", or "substantially" includes the stated value and the average value within the acceptable deviation range of the specific value determined by a person of ordinary skill in the art, taking into account the measurement in question and the The specific amount of measurement-related error (ie, the limitation of the measurement system). For example, "about" can mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±10%, ±5%. Furthermore, the "about", "approximately" or "substantially" used herein can select a more acceptable range of deviation or standard deviation based on optical properties, etching properties, or other properties, instead of using one standard deviation for all properties .

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of related technologies and the present invention, and will not be interpreted as idealized or excessive The formal meaning, unless explicitly defined as such in this article.

FIG. 1 is a schematic top view of a display device 10 according to an embodiment of the invention. FIG. 1 shows a pixel array substrate 100 and a driving element 200, and other components of the display device 10 are omitted.

2 is a schematic top view of a pixel array substrate 100 according to an embodiment of the invention. Figure 2 corresponds to the part R of Figure 1. FIG. 1 omits multiple pixels 120, multiple data lines DL, and multiple bridge elements BL in FIG. 2.

It should be noted that FIG. 2 schematically shows the pixel array substrate 100, and FIG. 2 is not the actual layout of the pixel array substrate 100. The actual layout of the various pixels 120 of the pixel array substrate 100 is shown in FIG. 3 , Figure 5 ~ Figure 7, Figure 9 ~ Figure 15.

3 is an enlarged schematic diagram of one pixel 120A-1 of the pixel array substrate 100 according to an embodiment of the present invention.

4 is a schematic cross-sectional view of a pixel array substrate 100 according to an embodiment of the invention. Figure 4 corresponds to the section line A-A' of Figure 3.

FIG. 5 is an enlarged schematic diagram of a pixel 120A-2 of the pixel array substrate 100 according to an embodiment of the present invention.

6 is an enlarged schematic diagram of one pixel 120A-3 of the pixel array substrate 100 according to an embodiment of the present invention.

FIG. 7 is an enlarged schematic diagram of a pixel 120C-1 of the pixel array substrate 100 according to an embodiment of the present invention.

FIG. 8 is a schematic cross-sectional view of a pixel array substrate 100 according to an embodiment of the invention. Figure 8 corresponds to the section line B-B' of Figure 7.

FIG. 9 is an enlarged schematic diagram of a pixel 120C-2 of the pixel array substrate 100 according to an embodiment of the present invention.

FIG. 10 is an enlarged schematic diagram of a pixel 120C-3 of the pixel array substrate 100 according to an embodiment of the present invention.

FIG. 11 is an enlarged schematic diagram of one pixel 120C-4 of the pixel array substrate 100 according to an embodiment of the present invention.

FIG. 12 is a schematic cross-sectional view of a pixel array substrate 100 according to an embodiment of the invention. Fig. 12 corresponds to the section line C-C' of Fig. 11.

FIG. 13 is an enlarged schematic diagram of a pixel 120C-5 of the pixel array substrate 100 according to an embodiment of the present invention.

FIG. 14 is an enlarged schematic diagram of a pixel 120C-6 of the pixel array substrate 100 according to an embodiment of the present invention.

15 is an enlarged schematic diagram of one pixel 120C-7 of the pixel array substrate 100 according to an embodiment of the present invention.

The structure of the pixel array substrate 100 of this embodiment will be described below with reference to FIGS. 1 to 15.

1 and 2, the display device 10 includes a pixel array substrate 100, a counter substrate (not shown) opposite to the pixel array substrate 100, and a display disposed between the pixel array substrate 100 and the counter substrate A medium (not shown) and a driving element 200 for driving the pixel array substrate 100. For example, in this embodiment, the driving element 200 may include a chip, and the chip may be bonded to the pixel array substrate 100 by a chip-on-film bonding process (COF). However, the present invention is not limited to this. According to other embodiments, the chip may also be combined with the chip by chip-on-glass (COG), tape automated bonding (TAB) or other methods. The pixel array substrate 100 is bonded.

The pixel array substrate 100 includes a substrate 110. The substrate 110 is mainly used to carry multiple components of the pixel array substrate 100. For example, in this embodiment, the material of the substrate 110 may be glass. However, the present invention is not limited to this. According to other embodiments, the material of the substrate 110 may also be quartz, organic polymers, or opaque/reflective materials (for example, wafers, ceramics, etc.), or other applicable materials. material.

The pixel array substrate 100 includes a plurality of data lines DL and a plurality of gate lines GL. A plurality of data lines DL and a plurality of gate lines GL are disposed on the substrate 110. A plurality of data lines DL are arranged in a first direction x, and a plurality of gate lines GL are arranged in a second direction y, wherein the first direction x and the second direction y are staggered. For example, in this embodiment, the first direction x and the second direction y may be perpendicular, but the invention is not limited thereto.

In addition, the data line DL and the gate line GL belong to different layers. For example, in this embodiment, the gate line GL can selectively belong to the first metal layer, and the data line DL can selectively belong to the second metal layer, but the invention is not limited thereto.

Based on the consideration of conductivity, in this embodiment, the data line DL and the gate line GL are made of metal materials. However, the present invention is not limited to this. According to other embodiments, the data line DL and the gate line GL may also use other conductive materials, such as alloys, metal nitrides, metal oxides, and metal oxynitrides. , Or stacked layers of metal materials and other conductive materials.

Please refer to FIGS. 2, 3 and 4, the pixel array substrate 100 includes a plurality of pixels 120. A plurality of pixels 120 are disposed on the substrate 110. Each pixel 120 includes an active device 121 and a pixel electrode 122. The active device 121 is electrically connected to a corresponding data line DL and a corresponding gate line GL, and the pixel electrode 122 is electrically connected to the active device 121.

For example, in this embodiment, the active device 121 includes a thin film transistor. The thin film transistor has a source 121a, a drain 121b, a gate 121c, and a semiconductor pattern 121d. The insulating layer 130 is sandwiched between the gate 121c and the semiconductor pattern. Between the patterns 121d, the source 121a and the drain 121b are respectively electrically connected to two different regions of the semiconductor pattern 121d, the source 121a is electrically connected to a corresponding data line DL, and the gate 121c is electrically connected to a corresponding gate The electrode line GL and the drain electrode 121b are electrically connected to the pixel electrode 122. In this embodiment, each pixel 120 further includes a common electrode cl. The common electrode cl and the pixel electrode 122 partially overlap to form a storage capacitor.

For example, in this embodiment, the gate 121c and the common electrode cl can selectively belong to the first metal layer, the source 121a and the drain 121b can selectively belong to the second metal layer, and the pixel array substrate 100 also It may include an insulating layer 140 disposed on the second metal layer. The pixel electrode 122 may be disposed on the insulating layer 140 and electrically connected to the drain 121b of the thin film transistor through the through hole 140a of the insulating layer 140, but the present invention does not Limit this.

In this embodiment, the pixel electrode 122 may belong to a transparent conductive layer, which includes metal oxides, such as indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, and indium germanium zinc oxide. , Other suitable oxides, or stacked layers of at least two of the above, but the present invention is not limited to this.

2 and 3, in this embodiment, multiple pixels 120 can be arranged in multiple pixel rows, and multiple pixels 120 in each pixel row are arranged in the first direction x; the same pixel The plurality of common electrodes cl of the plurality of pixels 120 of the row can be directly connected to form a common electrode pattern CL; the plurality of common electrode patterns CL of the plurality of pixel rows are arranged in the second direction y; the pixel array substrate 100 It also includes a plurality of bridge elements BL arranged in the first direction x; the plurality of common electrode patterns CL of the plurality of pixel rows can be electrically connected to each other by the plurality of bridge elements BL.

That is, in the top view of the pixel array substrate 100, the plurality of common electrode patterns CL and the plurality of bridge elements BL having the same reference potential can be interwoven into a conductive pattern that is approximately mesh-like. However, the present invention is not limited to this. According to other embodiments, the plurality of common electrodes cl of the plurality of pixels 120 may also be electrically connected to each other by a plurality of bridge elements in other arrangements.

For example, in this embodiment, the common electrode pattern CL can selectively belong to the first metal layer, the plurality of bridge elements BL can selectively belong to the second metal layer, and the plurality of bridge elements BL can pass through the insulating layer 130. The plurality of through holes 130c are electrically connected to the plurality of common electrode patterns CL, but the invention is not limited to this.

Referring to FIG. 1, FIG. 2 and FIG. 3, the pixel array substrate 100 further includes a plurality of transfer wires gl. A plurality of transfer wires gl is disposed on the substrate 110 and arranged in the first direction x. The plurality of transfer lines gl arranged in the first direction x are respectively electrically connected to the plurality of gate lines GL arranged in the second direction y.

Please refer to FIG. 2, FIG. 3, and FIG. 4. For example, in this embodiment, a plurality of gate lines GL can selectively belong to the first metal layer, and the main part gla of the plurality of transition lines gl can be selectively The ground belongs to the second metal layer. An insulating layer 130 is provided between the first metal layer and the second metal layer. The insulating layer 130 has a plurality of first through holes 130a, and the main part gla of the plurality of transfer wires gl can penetrate the insulating layer. The plurality of first through holes 130a of 130 are respectively electrically connected to the plurality of gate lines GL, but the invention is not limited thereto.

1 and 2, in this embodiment, the source driving circuit electrically connected to the plurality of data lines DL is provided on the first side (for example, the upper side) of the substrate 110, and the plurality of gate lines GL pass through more The patch cord gl is electrically connected to the gate driving circuit provided on the first side (for example, the upper side) of the substrate 110. That is, in this embodiment, the source driving circuit and the gate driving circuit are disposed on the same side of the substrate 110. In addition, in this embodiment, the source driving circuit and the gate driving circuit can be selectively integrated into the same driving element 200 (for example, a chip), but the invention is not limited to this.

Referring to FIG. 2, FIG. 3, and FIG. 4, the plurality of pixels 120 includes a plurality of first pixels 120A. For clarity of expression, FIG. 2 uses a plurality of rectangular patterns with spots to represent the plurality of first pixels 120A. In the top view of the pixel array substrate 100, one pixel electrode 122 of each first pixel 120A partially overlaps with at least one transfer line gl. Since the pixel electrode 122 of the first pixel 120A partially overlaps with at least one transfer line gl, the area of the pixel electrode 122 of the first pixel 120A is large, which helps to increase the opening of the pixel array substrate 100 rate.

Please refer to FIG. 2, FIG. 3, FIG. 5, and FIG. 6. In this embodiment, the plurality of first pixels 120A may include a plurality of first pixels 120A-1, 120A-2, and 120A-3. Referring to FIG. 2, a first pixel 120A-1, a first pixel 120A-2, and a first pixel 120A-3 may be arranged in the first direction x.

Please refer to FIG. 2, FIG. 3 and FIG. 4, the first edge (for example, the right edge) of the pixel electrode 122 of the first pixel 120A-1 is set on a transfer line gl, and the first pixel 120A-1 The second edge (for example, the left edge) of the pixel electrode 122 is disposed on the common electrode cl and the bridge element BL. In this embodiment, the bridge element BL shields the gap between two adjacent pixel electrodes 122. The bridge element BL can also be called a shielding metal, but the invention is not limited to this.

2 and 5, the first edge (for example: the right edge) and the second edge (for example: the left edge) of the pixel electrode 122 of the first pixel 120A-2 can be respectively disposed on two transfer lines gl on.

2 and 6, the first edge (for example, the right edge) of the pixel electrode 122 of the first pixel 120A-3 is disposed on the common electrode cl and the bridge element BL, and the picture of the first pixel 120A-3 The second edge (for example, the left edge) of the element electrode 122 can be disposed on a transfer line gl.

Please refer to FIG. 2, in this embodiment, the plurality of pixels 120 of the pixel array substrate 100 further includes a plurality of second pixels 120C. For clarity of presentation, FIG. 2 uses a plurality of blank rectangular patterns to represent a plurality of second pixels 120C.

2 and 7, in the top view of the pixel array substrate 100, the pixel electrode 122 of the second pixel 120C partially overlaps the common electrode cl of the second pixel 120C, and the common electrode of the second pixel 120C cl overlaps the transfer line gl, and there is a gap G between the pixel electrode 122 of the second pixel 120C and the transfer line gl. That is, the pixel electrode 122 of the second pixel 120C partially overlaps the common electrode cl of the second pixel 120C, but the pixel electrode 122 of the second pixel 120C does not overlap the transition line gl.

Since the pixel electrode 122 of the second pixel 120C does not overlap with the transition line gl, the parasitic capacitance between the pixel electrode 122 of the second pixel 120C and the transition line gl is small, which helps to reduce the The feedthrough voltage caused by the parasitic capacitance further improves the performance of the display device 10.

Please refer to Figure 2, Figure 3 and Figure 7. In this embodiment, the main part gla of the same patch cord gl has a first part gla-1 and a second part gla-2 connected to each other; In the top view of the array substrate 100, the first part gla-1 of the transition line gl partially overlaps with the pixel electrode 122 of the first pixel 120A, and the second part gla-2 of the transition line gl and the second pixel 120C There is a gap G between the pixel electrodes 122; in particular, the line width W1 of the first part gla-1 of the transfer line gl is greater than the line width W2 of the second part gla-2 of the transfer line gl. In other words, the transfer line gl will become thinner beside the pixel electrode 122 of the second pixel 120C, so that the transfer line gl will not overlap with the pixel electrode 122 of the second pixel 120C. Referring to FIG. 7, in addition, in this embodiment, the line width W2 of the second part gla-2 of the main part gla of the transition line gl is smaller than the line width W0 of the common electrode cl of the second pixel 120C.

Please refer to FIG. 2, FIG. 7, FIG. 9, FIG. 10, FIG. 11, FIG. 13, FIG. 14, and FIG. 15. In this embodiment, the plurality of second pixels 120C includes a plurality of second pixels 120C-1, 120C -2, 120C-3, 120C-4, 120C-5, 120C-6, 120C-7.

Please refer to FIG. 2, the plurality of second pixels 120C-1, 120C-2, and 120C-3 are sequentially arranged in the first direction x.

Please refer to FIG. 2, FIG. 7 and FIG. 8, the second pixel 120C-1 has a first edge (for example: the right edge) next to the first edge (for example, the right edge) of the pixel electrode 122. The first edge of the element electrode 122 overlaps the common electrode cl but does not overlap the transition line gl, and the transition line gl is not electrically connected to the gate 121c of the active element 121 of the second pixel 120C-1; The second edge (for example, the left edge) of the pixel electrode 122 of the second pixel 120C-1 is disposed on the common electrode cl and the bridge element BL.

2 and 9, the second pixel 120C-2 is provided with a plurality of transition lines gl beside the first edge and the second edge (for example, the right edge and the left edge) of the pixel electrode 122, respectively, the second The first edge and the second edge of the pixel electrode 122 of the pixel 120C-2 overlap the common electrode cl but do not overlap with the transfer line gl, and the plurality of transfer lines gl are not electrically connected to the second picture The gate 121c of the active device 121 of the element 120C-2.

2 and 10, the first edge of the pixel electrode 122 of the second pixel 120C-3 is disposed on the common electrode cl and the bridge element BL; the second pixel electrode 122 of the second pixel 120C-3 A patch cord gl is provided beside the edge (for example, the left edge), and the patch cord gl is not electrically connected to the gate 121c of the active element 121 of the second pixel 120C-3.

Please refer to Figure 2, Figure 11, Figure 12, Figure 13, Figure 14 and Figure 15, the common electrode cl of each second pixel 120C-4, 120C-5, 120C-6, 120C-7 and at least one adapter The lines gl overlap, and at least one transfer line gl is electrically connected to at least one first through hole 130a of the insulating layer 130 disposed beside the second pixel 120C-4, 120C-5, 120C-6, 120C-7 The gate 121c of the active device 121 of the second pixel 120C-4, 120C-5, 120C-6, 120C-7.

Please refer to FIG. 2, a plurality of second pixels 120C-4, 120C-5 are arranged in order in the first direction x, and a plurality of second pixels 120C-6, 120C-5 are arranged in order in the second direction y , And the plurality of second pixels 120C-6 and 120C-7 are arranged in sequence in the first direction x.

Please refer to FIG. 2, FIG. 11, and FIG. 12, the second pixel 120C-4 has a first edge (for example, the right edge) of the pixel electrode 122 is provided with a transfer line gl, and the transfer line gl The gate electrode 121c of the active element 121 of the second pixel 120C-4 is electrically connected; the second edge (for example, the left edge) of the pixel electrode 122 of the second pixel 120C-4 is disposed on the common electrode cl and the bridge element BL on.

2 and FIG. 13, the second pixel 120C-5 pixel electrode 122 has a first edge (for example: the right edge) is provided with a patch cord gl, and the patch cord gl has no electrical properties Connected to the gate 121c of the active element 121 of the second pixel 120C-5; the second edge (for example, the left edge) of the pixel electrode 122 of the second pixel 120C-5 is provided with another transfer line gl, And the other transfer line gl is electrically connected to the gate 121c of the active element 121 of the second pixel 120C-5.

2 and FIG. 14, the second pixel 120C-6 pixel electrode 122 has a first edge (for example: the right edge) is provided with a patch cord gl, and the patch cord gl is electrically connected to The gate 121c of the active element 121 of the second pixel 120C-6; the second edge (for example, the left edge) of the pixel electrode 122 of the second pixel 120C-6 is provided with another transfer line gl, and The other transfer line gl is not electrically connected to the gate 121c of the active element 121 of the second pixel 120C-6.

2 and 15, the first edge (for example, the right edge) of the pixel electrode 122 of the second pixel 120C-7 is disposed on the common electrode cl and the bridge element BL, and the second pixel 120C-7 has a picture A patch cord gl is provided beside the second edge (for example, the left edge) of the element electrode 122, and the patch cord gl is electrically connected to the gate 121c of the active element 121 of the second pixel 120C-7.

Please refer to FIG. 2, FIG. 3 and FIG. 7. In this embodiment, each transfer line gl may include a main part gla and an auxiliary part glb. The main part gla spans multiple gate lines GL, and each auxiliary part The glb is disposed between two adjacent gate lines GL and partially overlaps the pixel electrode 122 of a first pixel 120A, and two ends of each auxiliary portion glb are electrically connected to two different regions of the main portion gla. That is to say, in this embodiment, each transfer line gl can be formed by connecting a main part gla belonging to different conductive layers and a plurality of auxiliary parts glb in parallel to reduce its resistance.

For example, in this embodiment, the main portion gla of each transition wire gl can be selectively formed on the second metal layer, and the plurality of auxiliary portions glb of each transition wire gl can be selectively formed on the first metal layer. A metal layer, both ends of each auxiliary portion glb can be electrically connected to two different regions of the main portion gla through the second through hole 130b of the insulating layer 130, but the present invention is not limited thereto.

FIG. 16 shows the signals of a plurality of transfer lines gl1 to gl14 (or in other words, a plurality of gate lines GL1 to GL14) during reverse scanning of the pixel array substrate 100 according to an embodiment of the present invention.

2 and FIG. 16, the plurality of pixels 120 includes a plurality of pixel groups GP. Each pixel group GP includes n second pixels 120C and one first pixel 120A, n second pixels 120C and one first pixel arranged in sequence along a transition line gl (for example: gl14) The pixels 120A are sequentially arranged in a reverse scanning direction (that is, the direction opposite to the second direction y), and the gate line GL (for example: GL14) electrically connected to the first first pixel 120A passes through the insulating layer 130 The first through hole 130a is electrically connected to the transfer line gl (for example: gl14), where n is a positive integer greater than or equal to 2. In other words, in the same pixel group GP, another second pixel 120C is provided between a second pixel 120C provided corresponding to the first through hole 130a and the first pixel 120A.

In this embodiment, the first pixel 120A of each pixel group GP is one pixel 120 of the plurality of second pixels 120C in the pixel group GP closest to the pixel group GP, and the plurality of pixel groups The multiple first pixels 120A of the GP are substantially arranged in a stepped manner.

In this embodiment, the number n of the plurality of second pixels 120C in each pixel group GP can be determined according to the driving method of the plurality of gate lines GL (or the driving method of the plurality of transfer lines gl) .

Specifically, in this embodiment, the multiple gate lines GL are divided into multiple gate line groups K, and each gate line group K includes m gate lines, and m gate lines of the same gate line group K The gate lines GL are turned on at the same time, and m is a positive integer greater than or equal to 1. When each gate line group K is turned on, each of the m gate lines GL of the gate line group K has a gate-on pulse, The time length of the gate pulse is T; multiple gate line groups K are sequentially turned on with a time delay, and the time length of the time delay is t, and n≥{[(Tt)/t]*m}+m, T =kt, k is a positive integer greater than or equal to 1.

For example, in this embodiment, the multiple gate lines GL are divided into multiple gate line groups K, and each gate line group K includes two gate lines GL (that is, m=2), and the same gate line The two gate lines GL of the line group K are opened at the same time. When each gate line group K is opened, each of the two gate lines GL of the gate line group K has a gate opening pulse, k=5 , The time length of the gate pulse T=5t, n≥{[(5t-t)/t]*2}+2, that is, n≥10. That is, in this embodiment, the number of the second pixels 120C of a pixel group GP is not less than 10, and the number of the second pixels 120C of a pixel group GP is, for example, 11 or 12, but the present invention is not limited to this. It should be noted that in this embodiment, k is 5 as an example t, but the present invention is not limited to this. In other embodiments, k may also be other positive integers other than 5 and greater than or equal to 1.

In the same pixel group GP, a gate line GL (for example: GL14) electrically connected to the first second pixel 120C has a gate-on potential in a time interval T1, which is similar to the first pixel 120A The electrically connected gate line GL (for example: GL2) has a gate-on potential in a time interval T7, and the time interval T1 and the time interval T7 do not overlap in timing.

That is, when the gate line GL2 has a gate-on potential and the first pixel 120A of the pixel group GP is charged, the signal of the transfer line gl14 adjacent to the first pixel 120A has been switched to the gate The potential is turned off. Therefore, even if the pixel electrode 122 of the first pixel 120A partially overlaps the transfer line gl14, the signal of the transfer line gl14 will not easily affect the potential of the pixel electrode 122 of the first pixel 120A.

On the other hand, in the same pixel group GP1, multiple gate lines GL13-GL5 electrically connected to other multiple second pixels 120C (for example, the second to tenth second pixels 120C) are respectively connected to each other in time. The intervals T1, T2, T3, T4, and T5 have gate-on potentials. When the gate lines GL13-GL5 have the gate-on potential and the other plurality of second pixels 120C (for example: the second to tenth second pixels 120C) are charged, they are adjacent to the other plurality of second pixels 120C (For example: the second to the tenth second pixel 120C) The signal of the adapter cable gl14 will switch from the gate-on potential to the gate-off potential. However, the pixel electrodes 122 of the other plurality of second pixels 120C (for example, the second to tenth second pixels 120C) do not overlap with the transition line gl14, and the transition line gl14 and the other plurality of second pixels 120C (For example: the second to tenth second pixel 120C) The parasitic capacitance between the pixel electrodes 122 is small. Therefore, the change of the signal of the transfer line gl14 is not easy to excessively affect the other multiple second pixels 120C (for example: The potential of the pixel electrode 122 of the second to ten second pixels 120C).

It is worth mentioning that, in this embodiment, the pixel electrode 122 of the first pixel 120A overlaps the transfer line gl, and the pixel electrode 122 of the first pixel 120A has a large area, which helps to improve the pixel The aperture ratio of the array substrate 100. In addition, in this embodiment, the transfer line gl may include a main part gla and an auxiliary part glb that belong to two different metal electrical layers and are electrically connected to each other through the second through hole 130b, that is, the transfer line gl may be adopted The design of the double-layer metal wiring helps to reduce the overall resistance of the transfer line gl and makes the pixel array substrate 100 easy to drive. The pixel electrode 122 of the second pixel 120C does not overlap with the transition line gl, and the potential of the pixel electrode 122 of the second pixel 120C is not easily affected by the transition line gl and the pixel electrode 122 of the second pixel 120C. The parasitic capacitance between them. In this embodiment, according to the driving mode of the multiple gate lines GL, the positions of the multiple first pixels 120A and the multiple second pixels 120C are appropriately arranged, which can realize the pixels with high aperture ratio and easy to drive. Array substrate 100.

In the embodiment of FIG. 16, the pixel array substrate 100 is driven in a reverse scanning manner. However, the pixel array substrate 100 is not limited to being driven in a forward scanning or reverse scanning manner. FIG. 17 shows the signals of the multiple transfer lines gl1 to gl14 (or in other words, the multiple gate lines GL1 to GL14) when the pixel array substrate 100 of an embodiment of the present invention is scanned in the forward direction. The pixel array substrate 100 of FIG. 2 can also be driven by the forward scanning method shown in FIG. 17. Those with ordinary knowledge in the field can realize it based on the foregoing description, so it will not be repeated here.

The following embodiments use the element numbers and part of the content of the previous embodiments, wherein the same numbers are used to represent the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted parts, refer to the foregoing embodiment, and the following embodiments will not be repeated.

FIG. 18 is a schematic top view of a pixel array substrate 100A according to another embodiment of the invention. FIG. 18 omits the substrate of the pixel array substrate 100A.

It should be noted that FIG. 18 schematically shows the pixel array substrate 100A, and FIG. 18 is not the actual layout of the pixel array substrate 100A. The actual layout of the various pixels 120B of the pixel array substrate 100A is shown in FIG. 19 , Figure 20 and Figure 21. In addition, FIG. 18 omits the shield electrode 170 of FIGS. 19, 20, and 21.

FIG. 19 is an enlarged schematic diagram of a pixel 120B-1 of a pixel array substrate 100A according to another embodiment of the present invention.

FIG. 20 is an enlarged schematic diagram of a pixel 120B-2 of a pixel array substrate 100A according to another embodiment of the present invention.

FIG. 21 is an enlarged schematic diagram of a pixel 120B-3 of a pixel array substrate 100A according to another embodiment of the present invention.

Referring to FIGS. 18, 19, 20 and 21, the pixel array substrate 100A includes a plurality of data lines DL, a plurality of gate lines GL, a plurality of pixels 120, and a plurality of transfer lines gl. A plurality of data lines DL are arranged in a first direction x, and a plurality of gate lines GL are arranged in a second direction y, wherein the first direction x and the second direction y are staggered. Each pixel 120B includes an active device 121 and a pixel electrode 122. The active device 121 is electrically connected to a corresponding data line DL and a corresponding gate line GL, and the pixel electrode 122 is electrically connected to the active device 121. A plurality of transfer lines gl are arranged in the first direction x. The plurality of transfer lines gl arranged in the first direction x are respectively electrically connected to the plurality of gate lines GL arranged in the second direction y.

Different from the aforementioned pixel array substrate 100, the pixel array substrate 100A of this embodiment further includes a shield electrode 170. In the top view of the pixel array substrate 100A, there is a gap G between the pixel electrode 122 of at least one pixel 120B and the transfer line gl, the shield electrode 170 is separated from the pixel electrode 122 of the pixel 120B, and the shield electrode 170 Overlap with adapter cable gl. The shielding electrode 170 can block the electric field formed by the transfer line gl, so as to reduce the adverse effect of the transfer line gl on the potential of the pixel electrode 122. For example, in this embodiment, the shield electrode 170 and the pixel electrode 122 may belong to the same transparent conductive layer, but the invention is not limited thereto.

In this embodiment, the multiple pixels 120B may include multiple pixels 120B-1, 120B-2, 120B-3. One pixel 120B-1, one pixel 120B-2, and one pixel 120B-3 are arranged in the first direction x.

Pixel 120B-1, pixel 120B-2, and pixel 120B-3 are similar to the aforementioned first pixel 120A-1, first pixel 120A-2, and first pixel 120A-3, respectively, and the differences are: There is at least one gap G between each of the plurality of pixel electrodes 122 of the plurality of pixels 120B-1, 120B-2, and 120B-3 and the adjacent at least one transition line gl, and the shield electrode 170 and the phase The plurality of transfer lines gl of the plurality of pixel electrodes 122 adjacent to the pixels 120B-1, 120B-2, and 120B-3 overlap.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be determined by the scope of the attached patent application.

10: Display device 100, 100A: pixel array substrate 110: substrate 120, 120B, 120B-1, 120B-2, 120B-3: pixels 120A, 120A-1, 120A-2, 120A-3: the first pixel 120C, 120C-1, 120C-2, 120C-3, 120C-4, 120C-5, 120C-6, 120C-7: second pixel 121: active component 121a: source 121b: Drain 121c: gate 121d: semiconductor pattern 122: pixel electrode 130, 140: insulating layer 130a: first through hole 130b: second through hole 130c, 140a: through hole 170: Shield electrode 200: drive element A-A’, B-B’, C-C’: cut line BL: bridging element CL: Common electrode pattern cl: common electrode DL: Data line G: gap GP: Pixel Group GL, GL1～GL14: gate line gl, gl1～gl14: transfer line gla: main department gla-1: part one gla-2: part two glb: auxiliary part K: Gate wire group R: partial T, t: length of time T1～T7: Time interval W0, W1, W2: line width x: first direction y: second direction

FIG. 1 is a schematic top view of a display device 10 according to an embodiment of the invention. 2 is a schematic top view of a pixel array substrate 100 according to an embodiment of the invention. 3 is an enlarged schematic diagram of one pixel 120A-1 of the pixel array substrate 100 according to an embodiment of the present invention. 4 is a schematic cross-sectional view of a pixel array substrate 100 according to an embodiment of the invention. FIG. 5 is an enlarged schematic diagram of a pixel 120A-2 of the pixel array substrate 100 according to an embodiment of the present invention. 6 is an enlarged schematic diagram of one pixel 120A-3 of the pixel array substrate 100 according to an embodiment of the present invention. FIG. 7 is an enlarged schematic diagram of a pixel 120C-1 of the pixel array substrate 100 according to an embodiment of the present invention. FIG. 8 is a schematic cross-sectional view of a pixel array substrate 100 according to an embodiment of the invention. FIG. 9 is an enlarged schematic diagram of a pixel 120C-2 of the pixel array substrate 100 according to an embodiment of the present invention. FIG. 10 is an enlarged schematic diagram of a pixel 120C-3 of the pixel array substrate 100 according to an embodiment of the present invention. FIG. 11 is an enlarged schematic diagram of one pixel 120C-4 of the pixel array substrate 100 according to an embodiment of the present invention. FIG. 12 is a schematic cross-sectional view of a pixel array substrate 100 according to an embodiment of the invention. FIG. 13 is an enlarged schematic diagram of a pixel 120C-5 of the pixel array substrate 100 according to an embodiment of the present invention. FIG. 14 is an enlarged schematic diagram of a pixel 120C-6 of the pixel array substrate 100 according to an embodiment of the present invention. 15 is an enlarged schematic diagram of one pixel 120C-7 of the pixel array substrate 100 according to an embodiment of the present invention. FIG. 16 shows the signals of a plurality of transfer lines gl1 to gl14 (or a plurality of gate lines GL1 to GL14) when the pixel array substrate 100 of an embodiment of the present invention is scanned in reverse. FIG. 17 shows the signals of a plurality of transfer lines gl1 to gl14 (or, a plurality of gate lines GL1 to GL14) when the pixel array substrate 100 of an embodiment of the present invention is scanned in the forward direction. FIG. 18 is a schematic top view of a pixel array substrate 100A according to another embodiment of the invention. FIG. 19 is an enlarged schematic diagram of a pixel 120B-1 of a pixel array substrate 100A according to another embodiment of the present invention. FIG. 20 is an enlarged schematic diagram of a pixel 120B-2 of a pixel array substrate 100A according to another embodiment of the present invention. FIG. 21 is an enlarged schematic diagram of a pixel 120B-3 of a pixel array substrate 100A according to another embodiment of the present invention.

100: Pixel array substrate

120: pixel

120A, 120A-1, 120A-2, 120A-3: the first pixel

120C, 120C-1, 120C-2, 120C-3, 120C-4, 120C-5, 120C-6, 120C-7: second pixel

130a: first through hole

BL: bridging element

DL: Data line

GP: Pixel Group

GL, GL1~GL14: gate line

g1, g11~g114: adapter cable

K: Gate wire group

x: first direction

y: second direction

Claims (10)

A pixel array substrate, including: A substrate; A plurality of data lines are arranged on the substrate and arranged in a first direction; A plurality of gate lines are arranged on the substrate and arranged in a second direction, wherein the first direction and the second direction are staggered; A plurality of pixels are disposed on the substrate, and each of the pixels includes an active device and a pixel electrode, the active device is electrically connected to a corresponding data line and a gate line, and the picture The element electrode is electrically connected to the active element; and A plurality of transfer wires are arranged in the first direction and are electrically connected to the gate wires; Wherein, the pixels include a plurality of first pixels; In the top view of the pixel array substrate, at least one of the pixel electrodes of the first pixels partially overlaps with one of the transfer lines. The pixel array substrate according to claim 1, wherein the pixels further include a plurality of second pixels, and at least one of the second pixels further includes a common electrode; In the top view of the pixel array substrate, the pixel electrode of the second pixel partially overlaps the common electrode of the second pixel, and the common electrode of the second pixel overlaps the transfer line, And there is a gap between the pixel electrode of the second pixel and the transfer line. The pixel array substrate described in item 2 of the scope of patent application, wherein the patch cord has a first part and a second part connected to each other; In the top view of the pixel array substrate, the first portion of the patch cord partially overlaps the pixel electrode of the first pixel, and the second portion of the patch cord overlaps with the pixel electrode of the second pixel. The gap exists between the pixel electrodes, and the line width of the first part of the patch cord is greater than the line width of the second part of the patch cord. The pixel array substrate described in item 2 of the scope of patent application, wherein the patch cord has a second part; In the top view of the pixel array substrate, the gap exists between the second portion of the patch cord and the pixel electrode of the second pixel, and the line width of the second portion of the patch cord is smaller than the The line width of the common electrode of the second pixel. The pixel array substrate according to claim 1, wherein the pixels further include a plurality of second pixels, and each of the second pixels includes a common electrode; In the top view of the pixel array substrate, the pixel electrode of each second pixel partially overlaps the common electrode of the second pixel, and the common electrode of each second pixel and the corresponding One of the transfer lines overlaps, and there is a gap between the pixel electrode of each second pixel and the transfer line; The pixels include a plurality of pixel groups, and at least one pixel group includes n second pixels and one first pixel arranged in sequence along the transition line; The pixel array substrate further includes: An insulating layer is sandwiched between the gate lines and the transfer wires, and has a plurality of first through holes, wherein the n second pixels of the pixel group include the first pixels arranged in sequence ~n second pixels, the active device of the first second pixel is electrically connected to a gate line, and the transfer line is electrically connected to the first through hole of the insulating layer Gate line, and n is a positive integer greater than or equal to 2. According to the pixel array substrate described in item 5 of the scope of patent application, each pixel group includes n second pixels and one first pixel arranged in sequence along a transfer line, each The n second pixels of the pixel group include first to n second pixels arranged in sequence; the active element of the first second pixel is electrically connected to a gate line, the The patch cord is electrically connected to the gate line through a first through hole of the insulating layer; the first pixels of each pixel group are the ones closest to the pixel group in the pixel group A pixel of the second pixel; the first pixels of the pixel groups are substantially arranged in a stepped manner. The pixel array substrate described in item 1 of the scope of patent application further includes: An insulating layer having a plurality of second through holes, wherein the patch cord includes a main part and an auxiliary part, the insulating layer is sandwiched between the main part and the auxiliary part, and the main part spans the gates Line, the auxiliary part is arranged between the two adjacent gate lines and partially overlaps the pixel electrode of the first pixel, and the two different regions of the main part penetrate the first pixels of the insulating layer The two through holes are electrically connected to the two ends of the auxiliary part. A driving method of a pixel array substrate for driving the pixel array substrate as described in item 5 of the scope of patent application, wherein the driving method includes: In a first time interval, enabling a gate line electrically connected to the first and second pixels of the pixel group to have a gate-on potential; and In a second time interval, the other gate line electrically connected to the first pixel of the pixel group has a gate-on potential, wherein the first time interval and the second time interval are There is no overlap in timing. A method for driving a pixel array substrate for driving the pixel array substrate as described in item 5 of the scope of patent application, wherein the gate lines are divided into a plurality of gate line groups, and each gate line group includes m gate lines, m is a positive integer greater than or equal to 1, the driving method includes; Make the m gate lines of the same gate line group be turned on at the same time, and when each gate line group is turned on, each of the m gate lines of the gate line group has a gate Turn on the pulse; and Turn on the gate line groups sequentially with a time delay, where the time delay of the time delay is t, the time length of the gate pulse is T, and n≥{[(Tt)/t]*m}+m . A pixel array substrate, including: A substrate; A plurality of data lines are arranged on the substrate and arranged in a first direction; A plurality of gate lines are arranged on the substrate and arranged in a second direction, wherein the first direction and the second direction are staggered; A plurality of pixels are disposed on the substrate, and each of the pixels includes an active device and a pixel electrode, the active device is electrically connected to a corresponding data line and a gate line, and the picture The element electrode is electrically connected to the active element; A plurality of patch cords are arranged in the first direction and are electrically connected to the gate lines; and A shielding electrode, wherein, in the top view of the pixel array substrate, a gap exists between the pixel electrode of at least one pixel and the transfer line, and the shielding electrode is connected to the pixel electrode of the pixel Separated, and the shielding electrode overlaps the patch cord.

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