Patent ID: 12189249

DETAIL DESCRIPTION OF EMBODIMENTS

To facilitate understanding of the technical solution of the present disclosure for those skilled in the art, the present disclosure will be described below in detail with the help of accompanying drawings and specific implementations.

Unless otherwise defined, technical or scientific terms used in the present disclosure are intended to have general meanings as understood by those of ordinary skill in the art. The words “first”, “second” and similar terms used in the present disclosure do not denote any order, quantity, or importance, but are used merely for distinguishing different components. Also, the use of the terms “a”, “an”, or “the” and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word “comprising” or “including” or the like means that the element or item preceding the word contains elements or items that appear after the word or equivalents thereof, but does not exclude other elements or items. The terms “connected” or “coupled” and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The words “upper/on”. “lower/below”, “left”, “right”, or the like are merely used to indicate a relative positional relationship, and when an absolute position of the described object is changed, the relative positional relationship may be changed accordingly.

It should be noted that embodiments of the present disclosure provide a display substrate and a display apparatus. The display apparatus may be a liquid crystal display apparatus, or may be an organic electroluminescent diode (OLED) display apparatus. Certainly, other types of display apparatuses are also possible, and are not listed one by one here. In the embodiments of the present disclosure, the description is made by taking the display apparatus being a liquid crystal display apparatus as an example. The liquid crystal display apparatus includes a display substrate and an opposite substrate, which are disposed oppositely and aligned and assembled into a cell, and a liquid crystal layer disposed between the display substrate and the opposite substrate. The display substrate used herein may be an array substrate, or may be a color on array (COA) substrate. When the display substrate is an array substrate, the opposite substrate includes a color filter layer. When the display substrate is a COA substrate, no color filter layer is provided on the opposite substrate. In the embodiments of the present disclosure, the illustration is made by taking the display substrate being an array substrate as an example.

FIG.1is a schematic diagram of an exemplary display substrate. As shown inFIG.1, the display substrate has a display region Q1, and a peripheral region Q2surrounding the display region Q1. The peripheral region Q2includes a first pad region Q21at a side of the display region Q1. The display substrate includes a base substrate10, a plurality of gate lines GL and a plurality of data lines DL on the base substrate10, and a plurality of sub-pixels defined by the gate lines GL and the data lines DL, with the gate lines GL intersecting with the data lines DL. The plurality of gate lines GL each extend in a first direction X and are arranged side by side in a second direction Y: the plurality of data lines DL each extend in the second direction Y and are arranged side by side in the first direction X: the sub-pixels01arranged side by side in the first direction X form a first pixel group; and the sub-pixels01arranged side by side in the second direction Y form a second pixel group. Each sub-pixel includes at least a thin film transistor20, a pixel electrode30, and a common electrode40. Gates of thin film transistors20in the sub-pixels01of a same first pixel group are connected to a same one of the gate lines GL; and sources of thin film transistors20in the sub-pixels of a same second pixel group are connected to a same one of the data lines DL.FIG.2is a cross-sectional view taken along A-A′ of the display substrate shown inFIG.1. As shown inFIG.2, the thin film transistor20in each sub-pixel01includes a gate, an active layer, a source, and a drain which are sequentially arranged in a direction away from the base substrate10. The drain of the thin film transistor20is connected to the pixel electrode30. An interlayer insulation layer50(serving as a gate insulation layer) is disposed between the gate and the active layer, and the pixel electrode30is located on a side of the interlayer insulation layer50away from the base substrate10. A passivation layer60covers the source and the drain of the thin film transistor20and a side of the pixel electrode30away from the base substrate10, and the common electrode40is formed on a side of the passivation layer60away from the base substrate10. The pixel electrode30is a plate electrode, and the common electrode40is a slit electrode.

It should be noted that, in the embodiments of the present disclosure, the first direction X and the second direction Y do not refer to a direction extending straight, but an extending direction or length direction of a certain structure.FIG.2merely shows an example where the thin film transistor20is a bottom gate thin film transistor, which does not form any limitation to the scope of the embodiments of the present disclosure. The thin film transistor20may also be a top gate thin film transistor. In addition, in the embodiments of the present disclosure, each sub-pixel includes the pixel electrode30and the common electrode40, and in some examples, the common electrode40may be disposed on a color filter substrate, such as in a TN mode display apparatus. Therefore, the common electrode40on the display substrate does not form any limitation to the scope of the embodiments of the present disclosure, either. In the embodiments of the present disclosure, the illustration is made merely by taking a case where the pixel electrode30and the common electrode40are both disposed on the display substrate as an example.

In addition, the display substrate includes a plurality of pixel units100arranged in an array, each pixel unit100including N sub-pixels, where N≥2, and N is an integer. In the embodiments of the present disclosure, a case where three sub-pixels are included in one pixel unit, that is, N=3, is taken as an example. For example, each pixel unit includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel. In this case, sub-pixels in a same column may emit light of a same color.

For the above display substrate, in the embodiments of the present disclosure, by integrating a third conductive structure therein, additional functions other than display, such as signal transceiving, and the like, are implemented. The following description is made by taking the third conductive structure being a coil part70in the near field communication antenna as an example, which does not form any limitation to the scope of the embodiments of the present disclosure.

In a first aspect,FIG.3is a schematic diagram of a display substrate according to an embodiment of the present disclosure; andFIG.4is a schematic partial structure diagram of a display substrate according to an embodiment of the present disclosure. As shown inFIGS.3and4, the display substrate has a display region Q1, and a peripheral region Q2surrounding the display region Q1. The display substrate includes: a base substrate10, a plurality of first conductive structures700, a plurality of second conductive structures800, an interlayer insulation layer50, and at least one near field communication antenna. The first conductive structures700are all disposed on the base substrate10, and located in the display region Q1and the peripheral region Q2. The first conductive structures700each extend in a first direction X and are arranged side by side in a second direction Y. The interlayer insulation layer50is disposed on a side of the first conductive structures700away from the base substrate10. The second conductive structures800are disposed on a side of the interlayer insulation layer50away from the base substrate10, and located in the display region Q1and the peripheral region Q2. The plurality of second conductive structures800each extend in the second direction Y and are arranged side by side in the first direction X. The second conductive structures800intersect with the first conductive structures700, and are electrically connected with the first conductive structures700through vias penetrating through the interlayer insulation layer50. The near field communication antenna is disposed on the base substrate10in the display region Q1. Each near field communication antenna includes at least one coil part70, including a plurality of first conductive lines701and a plurality of second conductive lines702, with the first conductive lines701intersecting with the second conductive lines702. Each first conductive line701forms at least a partial structure of one of the first conductive structures700, and part of the first conductive structures each include two first conductive lines701; and each second conductive line702forms at least a partial structure of one of the second conductive structures800.

It should be noted that in the embodiment of the present disclosure, the purpose of providing part of the first conductive structures700including two first conductive lines701is to form a bent pattern and thus form the coil part70. When the near field communication antenna includes only one coil part70, both ends of the coil part70are connected to a control circuit to form a closed loop. In this case, an external magnetic induction coil may form an induced current loop in the near field communication antenna and the control circuit, thereby completing the near field communication. When a plurality of coil parts70are provided, the plurality of coil parts70may be connected by a connection jumper130to form an antenna coil. In this case, both ends of the antenna are connected to the control circuit to form a closed loop, and an induced current loop may be formed in the near field communication antenna and the control circuit through an external magnetic induction coil, thereby completing the near field communication. The specific structure will be described in the following specific examples.

In the embodiment of the present disclosure, the coil part70of the near field communication antenna is integrated in the display region Q1, which helps to save space and obtain a thinner and lighter display substrate. Meanwhile, since the coil part70is formed of the first conductive lines701and the second conductive lines702, with the first conductive lines701intersecting with the second conductive lines702, that is, the coil part70has a mesh structure, it will not affect the display effect of the display apparatus to which the display substrate is applied. In addition, since each first conductive line701in the coil part70forms at least a partial structure of one of the first conductive structures700, each second conductive line702forms at least a partial structure of one of the second conductive structures800, and the first conductive structures700and the second conductive structures800are located in the display region Q1and the peripheral region Q2, it ensures the display uniformity of the display apparatus to which the display substrate is applied.

In some examples,FIG.5is a layout of a display substrate according to an embodiment of the present disclosure. As shown inFIG.5, in addition to the above structures, the display substrate further includes a plurality of gate lines GL, a plurality of data lines DL, and a plurality of sub-pixels on the base substrate10. The gate lines GL are located in the display region Q1and the peripheral region Q2, and each extend in the first direction X and are arranged side by side in the second direction Y. The data lines DL are located in the display region Q1and the peripheral region Q2, and each extend in the second direction Y and are arranged side by side in the first direction X. The sub-pixels are defined by the gate lines GL and the data lines DL, with the gate lines GL intersecting with the data lines DL. The sub-pixels arranged side by side in the first direction X form a first pixel group; and the sub-pixels arranged side by side in the second direction Y form a second pixel group. In the embodiment of the present disclosure, any adjacent first pixel groups are provided with one of the first conductive structures700therebetween; and at least part pairs of adjacent second pixel groups each are provided with one of the second conductive structures800between the adjacent second pixel groups.

It should be noted that, any adjacent first pixel groups being provided with one of the first conductive structures700therebetween does not mean that an overall projection of the first conductive structures700on the base substrate10is completely located between orthographic projections of adjacent first pixel groups on the base substrate10. In the embodiment of the present disclosure, the first conductive structure700is considered to be located between two adjacent first pixel groups as long as a partial structure of the first conductive structure700is located between the two adjacent first pixel groups. For example, as shown inFIG.5, an orthogonal projection of a part of the first conductive structure700(i.e., the first body part710described below) extending in the first direction X on the base substrate10overlaps an orthogonal projection of the sub-pixel on the base substrate10, but an orthogonal projection of a part of the first conductive structure700(i.e., the first connection part720described below) extending in the second direction Y on the base substrate10does not overlap an orthogonal projection of the sub-pixel on the base substrate10, and is located between two first pixel groups. Since positions between the first pixel groups and positions between the second pixel groups are non-light-transmitting regions, by providing each first conductive structure700between adjacent first pixel groups, and each second conductive structure800between adjacent second pixel groups, it will not affect the pixel aperture ratio.

In some examples, in the embodiment of the present disclosure, the sub-pixels in a same second pixel group have a same color, and the sub-pixels in the adjacent second pixel groups have different colors. In an example, the display substrate includes sub-pixels of three colors, for example, the sub-pixels of three colors may include a red sub-pixel R, a green sub-pixel G, and a blue sub-pixel B, respectively. Every three sub-pixels arranged side by side in the first direction X form a pixel unit. That is, each pixel unit includes a red sub-pixel, a green sub-pixel, and a blue sub-pixel. The pixel units arranged side by side in the second direction Y form a pixel unit group: where each pixel unit group is provided with at least one second conductive structure800.

Further, in an example, in each pixel unit group, any adjacent second pixel groups are provided with the second conductive structure800therebetween. That is, each pixel unit group is provided therein with two second conductive structures800, one second conductive structure800is located between the second pixel group formed by red sub-pixels R and the second pixel group formed by green sub-pixels G, and the other second conductive structure800is located between the second pixel group formed by green sub-pixels R and the second pixel group formed by blue sub-pixels B. In another example, each pixel unit group is provided with one second conductive structures800, and the second conductive structure800is located between the second pixel group formed by red sub-pixels R and the second pixel group formed by green sub-pixels G. Such arrangement is provided because the red sub-pixels R have a higher risk of color crosstalk, and therefore, the black matrix is formed with a larger line width at the position between the corresponding red sub-pixels R and green sub-pixels G in the color filter substrate than at other positions. Therefore, the second conductive structure800provided at that position will not affect the pixel aperture ratio.

It should be noted that the drawings and the following description of the embodiments of the present disclosure all take the case where only one second conductive structure800is provided in each pixel unit group, and the second conductive structure800is located between the red sub-pixels and the green sub-pixels as an example. However, it will be appreciated that this does not form any limitation to the scope of the embodiments of the present disclosure.

In some examples,FIG.6is a cross-sectional view taken along B-B′ of the display substrate shown inFIG.5. As shown inFIG.6, each sub-pixel includes at least a thin film transistor20, a pixel electrode30, and a common electrode40. The display substrate includes a first conductive layer, an interlayer insulation layer50(serving as a gate insulation layer), a pixel electrode30, a second conductive layer, a passivation layer60, and a common electrode40which are sequentially disposed on the base substrate10. The first conductive layer includes a gate of the thin film transistor20, the gate lines GL, and the first conductive structures700. The gate of the thin film transistor20and the gate line GL are electrically connected, and may form into one piece. The second conductive layer includes a source and a drain of the transistor20, the data lines DL, and the second conductive structures800. The drain of the thin film transistor20is electrically connected to the pixel electrode30; the source of the thin film transistor20and the data line DL are electrically connected, and may form into one piece; and the second conductive structures800are electrically connected to the first conductive structures700through vias penetrating through the interlayer insulation layer. The pixel electrode30is a plate electrode, and the common electrode40is a slit electrode.

In this case, the first conductive layer includes a gate of the thin film transistor20, the gate lines GL, and the first conductive structures700. The second conductive layer includes a source and a drain of the thin film transistor20, the data lines DL, and the second conductive structures800. In this case, the gate of the thin film transistor20, the gate lines GL, and the first conductive structures700may be formed through a single patterning process; and the source and the drain of the thin film transistor20, the data lines DL, and the second conductive structures800may be formed through a single patterning process. In the embodiment of the present disclosure, each first conductive line701of the near field communication antenna forms at least a partial structure of one of the first conductive structures700, and each second conductive line702forms at least a partial structure of one of the second conductive structures800. As result, although the near field communication antenna is integrated in the display substrate, no process step is added.

In the embodiment of the present disclosure, since each first conductive line701of the near field communication antenna forms at least a partial structure of one of the first conductive structures700, and each second conductive line702forms at least a partial structure of one of the second conductive structures, it is ensured that positions of the first conductive structure700and the second conductive structure800, as well as matching relationship between the connection of the first conductive structure700and the second conductive structure800, and the via, are reasonable, so that the performance of the near field communication antenna is guaranteed. In some examples,FIG.7is a schematic diagram showing an electrical connection between the first conductive structure700and the second conductive structure800in the display substrate according to an embodiment of the present disclosure. The first conductive structure700includes a first body part710and a first connection part720. The first body part710extends in the first direction X, and the first connection part720is connected to the first body part710. The second conductive structure800includes a second body part810and a second connection part820. The second body part810extends in the second direction Y, and the second connection part820is connected to the second body part810. For the first conductive structure700and the second conductive structure800which are intersected with each other, the first connection part720of the first conductive structure700is electrically connected to the second connection part820of the second conductive structure800through a via penetrating through the interlayer insulation layer50.

For example,FIG.8is a partial position diagram of a layout of a display substrate according to an embodiment of the present disclosure. As shown inFIG.8, the first connection part720is located between the first body part710connected thereto and the gate line GL closest to the first body part710; and the second connection part820is located on a side of the second body part810connected thereto away from the data line DL closest to the second body part810. The first connection part720and the second connection part820each include a first (left) side edge and a second (right) side edge which are disposed oppositely in the first direction X, and a third (lower) side edge and a fourth (upper) side edge which are disposed oppositely in the second direction Y. The third side edge of the first connection part720is connected to the first body part710; and the second side edge of the second connection part820is connected to the second body part810. Orthographic projections of the first connection part720and the second connection part820on the base substrate10at least partially overlap, and each at least cover at least a partial region of an orthographic projection of the via on the base substrate10. As shown inFIG.7, a distance L11from an orthographic projection of the first side edge of the first connection part720on the base substrate10to the orthographic projection of the via on the base substrate10, and a distance L13from an orthographic projection of the third side edge on the base substrate10to the orthographic projection of the via on the base substrate10each are not less than 2.0 μm. For example, the distance L11from the orthogonal projection of the first side edge of the first connection part720on the base substrate10to the orthographic projection of the via on the base substrate10is 2.4 μm, and the distance L13from the orthogonal projection of the third side edge of the first connection part720on the base substrate10to the orthographic projection of the via on the base substrate10is 2.0 μm. Distances L14from orthographic projections of the first side edge, the third side edge and the fourth side edge of the second connection part820on the base substrate10to the orthographic projection of the via on the base substrate10each are not less than 2.0 μm. For example, the distances L14from orthographic projections of the first side edge, the third side edge and the fourth side edge of the second connection part820on the base substrate10to the orthographic projection of the via on the base substrate10each are 2.4 μm. In addition, the farthest distance L12from the orthographic projection of the via on the base substrate10to the orthographic projection of the first body part710of the first conductive structure700on the base substrate10is not less than 4 μm. For example, the farthest distance L12from the orthographic projection of the via on the base substrate10to the orthographic projection of the first body part710of the first conductive structure700on the base substrate10is about 5 μm.

In some examples, since the first conductive structure700serves as at least a partial structure of the first conductive line701of the near field communication antenna, and the first conductive structure700is disposed in the same layer as the gate line GL, it should guarantee that a distance between the first conductive structure700and the gate line GL is set to prevent the near field communication antenna from affecting a signal on the gate line GL. In the embodiment of the present disclosure, as shown inFIG.8, a distance L16between the first connection part720of the first conductive structure700and the gate line GL closest thereto is not less than 4 μm, for example, L16is about 5.2 μm, so that signal interference can be effectively avoided, and meanwhile, since the first conductive structure700is disposed in the same layer as the gate line, an exposure interval when the first conductive structure700and the gate line being patterned can be ensured by reasonably setting a distance between the first conductive structure700and the gate line.

Similarly, since the second conductive structure800serves as at least a partial structure of the second conductive line702of the near field communication antenna in a same layer, and the second conductive structure800is disposed in the same layer as the data lines DL, it should guarantee that a distance between the second conductive structure and the data line DL is set to prevent the near field communication antenna from affecting a signal on the data line DL. As shown inFIG.8, in the embodiment of the present disclosure, a distance L17between the second body part810and the data line DL closest thereto is not less than 3.5 μm: for example, L17is about 4.5 μm. In addition, the drain of the thin film transistor20is directly electrically connected to the pixel electrode30, and therefore, except the portion electrically connected to the drain of the thin film transistor20, the pixel electrode30is disposed in the same layer as the second conductive structure800at other positions. In order to prevent the second conductive structure800from affecting a voltage signal on the pixel electrode30, in the embodiment of the present disclosure, a distance L18between the second connection part820and the pixel electrode30closest thereto is not less than 2.0 μm. For example, the distance L18between the second connection part820and the pixel electrode30closest thereto ranges from about 2.5 μm or 2.99 μm.

In some examples,FIG.9is a layout of a common electrode layer in a display substrate according to an embodiment of the present disclosure. As shown inFIG.9, since the first conductive line701of the coil part70of the near field communication antenna is disposed in the first conductive layer, the second conductive line702is disposed in the second conductive layer, and the common electrodes40in different sub-pixels are typically connected together, that is, the common electrodes40in different sub-pixels form a common electrode layer on a side of the second conductive layer away from the base substrate, in order to prevent the common electrode layer from affecting signal transmission over the near field communication antenna, a plurality of first openings401are provided in the common electrode layer. The first openings401each extend in the second direction Y and are arranged side by side in the first direction X. An orthographic projection of each first opening401on the base substrate10partially overlaps an orthographic projection of one of the second conductive structures800on the base substrate10. For example, the first openings401are disposed in correspondence with the second conductive structures800one to one. Further, since the common electrode40in the embodiment of the present disclosure is a slit electrode, orthographic projections of the first conductive structures700and the common electrode40on the base substrate10at least partially overlap, so that slits in the common electrode40can be used to facilitate signal transmission over the near field communication antenna. In some examples, the common electrode layer further includes a plurality of second openings402which each extend in the first direction X and are arranged side by side in the second direction Y. An orthographic projection of each second opening402on the base substrate10at least partially overlaps an orthogonal projection of the thin film transistors20arranged side by side in the first direction X on the base substrate10. In this case, although there is a certain distance between each second opening402and the second conductive line702of the near field communication antenna, the second opening402can also assist signal transmission over the near field communication antenna.

In the embodiment of the present disclosure, the display region Q1includes at least one first region Q11and at least one second region Q12. The first region Q11is configured to be provided with the near field communication antenna, and each first region Q11is provided with the coil part70of one near field communication antenna. Other regions of the display region Q1except the first region Q11are collectively referred to as the second region Q12. The peripheral region Q2includes a first pad region Q21and a second pad region Q22on opposite sides of the display region Q1in the second direction Y. When the display region Q1includes only one first region Q11, the one first region Q11may be disposed on a side of the second region Q12close to the first pad region Q21, or on a side of the second region Q12close to the second pad region Q22. This may facilitate binding of the near field communication antenna in the first region Q11with a flexible circuit board. Similarly, when the display region Q1includes two first regions Q11, one of the first regions Q11is disposed on the side of the second region Q12close to the first pad region Q21, and the other first region Q11is disposed on the side of the second region Q12close to the second pad region Q22. Alternatively, in the embodiment of the present disclosure, more first regions Q11may be provided in the display region Q1of the display substrate, that is, coil parts70of more near field communication antennas may be integrated in the display substrate. It should be noted that the signal line on the display substrate is typically bonded and connected to the flexible circuit board via the first pad region Q21. In some implementations, the near field communication antenna is located on a side of the display region close to the second pad region Q22. In this case, the flexible printed circuit board bonded to the near field communication antenna, and the flexible printed circuit board bound to the first pad region Q21, are not a same flexible circuit board. Therefore, interference between the signal line on the display substrate and the coil part70of the near field communication antenna can be avoided, and a sufficient space can be reserved for bonding the coil part70of the near field communication antenna.

In the following description, only the case where the display region Q1of the display substrate has one or two first regions Q11, that is, coil parts70of one or two near field communication antennas are integrated in the display substrate, is described.

In some examples,FIG.10is a partial position diagram of a layout of a display substrate according to an embodiment of the present disclosure, andFIG.11is an enlarged view of position A inFIG.10. As shown inFIGS.4,10and11, the display substrate includes not only the coil part70disposed in the first region Q11, but also a plurality of third conductive lines110and a plurality of fourth conductive lines120in the second region Q12and the peripheral region Q2. The plurality of third conductive lines110intersect with the plurality of fourth conductive lines120, and each third conductive line110forms at least a partial structure of one of the first conductive structures700, and each fourth conductive line120is a partial structure of one of the second conductive structures800. In this case, the first conductive structures700and the second conductive structures800are uniformly distributed in the display region Q1, which helps to provide a uniform aperture ratio of the display substrate. In order to prevent a signal on the coil part70from being coupled into the second region Q12, the second conductive line702and the fourth conductive line120belonging to a same second conductive structure800are disconnected by a distance L21ranging from about 2 μm to 6 μm, for example, being 4 μm.

Further, the display substrate further includes, in addition to the above structures, a common electrode line400on the base substrate10in the peripheral region Q2. When the third and fourth conductive lines110and120are disposed in the second region Q12, the third conductive lines110may be electrically connected to the common electrode line400. For example, the common electrode line400includes a first common electrode sub-line extending in the first direction, and a second common electrode sub-line extending in the second direction. The first common electrode sub-line may be disposed in the same layer and made of the same material as the first conductive structures700; and the second common electrode sub-line may be disposed in the same layer and made of the same material as the second conductive structure800. In this case, the first common electrode sub-line is electrically connected to the second common electrode sub-line through a via penetrating through the interlayer insulation layer50. Each third conductive line110is electrically connected to the second common electrode sub-line through a via penetrating the interlayer insulation layer50so that voltages on the third conductive lines110and the fourth conductive lines120share a common voltage, thereby preventing the third conductive lines110and the fourth conductive lines120from entering a floating state. Alternatively, each fourth conductive line120is electrically connected to the first common electrode sub-line through a via penetrating the interlayer insulation layer50so that voltages on the third conductive lines110and the fourth conductive lines120share a common voltage. Alternatively, it is also possible that each third conductive line110is electrically connected to the second common electrode sub-line through a via penetrating the interlayer insulation layer50, and meanwhile each fourth conductive line120is electrically connected to the first common electrode sub-line through a via penetrating the interlayer insulation layer50, so that voltages on the third conductive lines110and the fourth conductive lines120share a common voltage.

It should be noted that when the peripheral region has a rectangular contour, the common electrode line400may include two first common electrode sub-lines and two second common electrode sub-lines. The two first common electrode sub-lines are arranged side by side in the second direction, and the two second common electrode sub-lines are arranged side by side in the first direction. When the third conductive line110is connected to the second common electrode sub-lines, two ends of the third conductive line110may be connected to the two second common electrode sub-lines, respectively (two ends of the third conductive line110are connected to the first common electrode sub-lines closest thereto, respectively). When the fourth conductive line120is connected to the first common electrode sub-lines, an end of the fourth conductive line120away from the first region Q11is connected to the second common electrode sub-line closest thereto.

In some examples,FIG.12is a schematic diagram of a near field communication antenna in a display substrate according to an embodiment of the present disclosure. As shown inFIG.12, the near field communication antenna may include only one coil part70. The coil part70may include at least two sub-structures extending in different directions. Each of the sub-structures includes the first conductive line701and the second conductive line702. For example, the coil part70has a V-shape, a U-shape, or the like. In the embodiment of the present disclosure, the description is made by taking the coil part70in a U shape as an example. As shown inFIG.12, the coil part70includes two first sub-structures71which are arranged side by side in the first direction X and each extend in the second direction Y, and one second sub-structure72extending in the first direction X and connected between the two first sub-structures71. As shown inFIG.4, the first region Q11in the display region Q1includes a non-functional region Q112, and a functional region Q111surrounding the non-functional region Q112. The coil part70is disposed in the functional region Q111. For example, the functional region Q111has a shape adapted to the shape of the coil part70. That is, when the coil part70has a U shape, the functional region Q111also has a U shape. In this case, the non-functional region Q112has a rectangular shape. Further, the display substrate further includes, in addition to the above structures, a plurality of fifth conductive lines80and a plurality of sixth conductive lines90disposed on the base substrate10in the non-functional region Q112, and the fifth conductive lines80intersect with the sixth conductive lines90. Each fifth conductive line80is a partial structure of one of the first conductive structures700, and each sixth conductive line90is a partial structure of one of the second conductive structures800.

In an example,FIG.13is a partial position diagram of a layout of a display substrate according to an embodiment of the present disclosure, andFIG.14is an enlarged view of position B inFIG.13. As shown inFIGS.13and14, among the plurality of first conductive structures700extending through the first region Q11, each first conductive structure700extending through both the functional region Q111and the non-functional region Q112includes a first conductive line701and a fifth conductive line80, and a distance L22between the fifth conductive line80and the first conductive line701is between 2 μm and 6 μm: for example, L22is about 4 μm. In other words, the first conductive line701and the fifth conductive line80of a same first conductive structure700are disconnected by a certain distance. By providing the above distance, the signal over the near field communication antenna is effectively prevented from being coupled into the fifth conductive line80to affect performance of the display substrate. Similarly, among the plurality of second conductive lines702extending through the first region Q11, each second conductive structure800extending through both the functional region Q111and the non-functional region Q112includes a second conductive line702and a sixth conductive line90, and a distance between the sixth conductive line90and the second conductive line702is between 2 μm to 6 μm: for example, the distance is about 4 μm. That is to say, the second conductive line702and the sixth conductive line90of a same second conductive structure800are disconnected by a certain distance. By providing the above distance, the signal over the near field communication antenna is effectively prevented from being coupled into the sixth conductive line90to affect performance of the display substrate.

Further,FIG.15is a schematic wiring diagram of a non-functional region Q112in a display substrate according to an embodiment of the present disclosure. As shown inFIG.15, in order to prevent the signal over the near field communication antenna from being coupled into the non-functional region Q112as much as possible, in the embodiment of the present disclosure, the fifth conductive lines80are designed to be broken. For example, as shown inFIG.15, each fifth conductive line80includes a plurality of first conductive sub-lines801arranged side by side and at intervals in the first direction X; and a gap between adjacent first conductive sub-lines801is located between adjacent sub-pixels. The gap between adjacent first conductive sub-lines801has a width L23ranging from 2 μm to 6 μm: for example, L23is about 4 μm.

When the peripheral region Q2of the display substrate is provided with the common electrode line400as described above, and the non-functional region Q112is provided with the fifth conductive lines80and the sixth conductive lines90, the sixth conductive lines90may be electrically connected to the common electrode line400. For example, the common electrode line400includes the first common electrode sub-line and the second common electrode sub-line as described above, and each sixth conductive line90is electrically connected to the first common electrode sub-line through a via penetrating through the interlayer insulation layer50, so that voltages on the fifth conductive lines80and the sixth conductive lines90share a common voltage, thereby preventing the fifth conductive lines80and the sixth conductive lines90from entering a floating state. In some implementations, an end of each sixth conductive line90away from the second region Q12is electrically connected to the first sub-common line closest thereto.

In some examples, when the near field communication antenna includes only one coil part70as described above, the first end and the second end of the coil part70are to be electrically connected to the control circuit on the flexible circuit board to achieve a magnetic induction function of the near field communication antenna. Also taking the coil part70in a U shape as an example, ends of two first sub-structures71of the coil part70respectively serve as the first end and the second end of the coil part70. The ends of the two first sub-structures71extend from the display region Q1to the peripheral region Q2. Meanwhile, since the second conductive lines702at the ends of the two first sub-structures71are spaced apart, in order to facilitate bonding between the coil part70and the flexible circuit board to be electrically connected with the control circuit, as shown inFIG.12, the near field communication antenna further includes a first extraction electrode703and a second extraction electrode704which are electrically connected to the first end and the second end of the coil part70, respectively; and the first extraction electrode703and the second extraction electrode704are both located in the peripheral region Q2.FIG.16is a schematic diagram of a first extraction electrode703(a second extraction electrode704) in a display substrate according to an embodiment of the present disclosure. As shown inFIG.16, the first extraction electrode703and the second extraction electrode704may each include a first extraction part7031and a second extraction part7032which are sequentially arranged in a direction away from the base substrate and electrically connected. In some examples, the first extraction part7031is disposed in the same layer as the first conductive structures700, and the second extraction part7032is disposed in the same layer as the second conductive structures. In this case, the first extraction part7031and the second extraction part7032of the first extraction electrode703(the second extraction electrode704) are electrically connected through a via penetrating through the interlayer insulation layer50. In this case, the second extraction part of the first extraction electrode703is electrically connected to the second conductive line702of one first sub-structure71; and the second extraction part of the second extraction electrode704is electrically connected to the second conductive line702of another first sub-structure71. In the embodiment of the present disclosure, by using the first extraction part7031and the second extraction part7032being electrically connected as the first extraction electrode703(the second extraction electrode704), a reduced resistance can be achieved.

It should be noted that, in the embodiment of the present disclosure, the first extraction electrode703and second extraction electrode704each has a width greater than the first sub-structure71, and with such configuration, the resistance can be effectively reduced. TakingFIG.3as an example, the first region Q11is located on a side of the second region Q12close to the second pad region Q22, and a first connection pad A and a second connection pad B are provided in the second pad region Q22. In this case, the second extraction part7032of the first extraction electrode703may be electrically connected to the first connection pad A through a first extraction line; the second extraction part7032of the second extraction electrode704may be electrically connected to the second connection pad B through a second extraction line; and then, the flexible circuit board is bonded to the first connection pad A and the second connection pad B to realize connection between the coil part70of the near field communication antenna and the control circuit, as shown inFIG.17. The first extraction line and the second extraction line may be disposed in the same layer and made of the same material as the second conductive structures800. In this manner, the electrical connection between the first extraction line and the second extraction part7032of the first extraction electrode703, as well as the electrical connection between the second extraction line and the second extraction part7032of the second extraction electrode704, are facilitated. Similarly, the first region Q11may be located on a side of the second region Q12close to the first pad region Q21. That is, the near field communication antenna is disposed on a side of the display region Q1close to the first pad region Q21. Alternatively, it is also possible that first regions Q11are disposed on both a side of the second region Q12close to the first pad region Q21and a side of the second region Q12close to the second pad region Q22. In this case, two near field communication antennas are disposed in the display region Q1. Regardless of one or two or more near field communication antennas being provided, the first end and the second end of the coil part70of each near field communication antenna may adopt the above-described structure.

The above describes the case where the near field communication antenna includes only one coil part70, but in some examples, there may be a plurality of coil parts70arranged in a nested manner in the near field communication antenna.FIG.18is a schematic diagram of a display substrate according to an embodiment of the present disclosure:FIG.19is a schematic diagram of a near field communication antenna in the display substrate shown inFIG.18; andFIG.20is a schematic wiring diagram in a redundant functional region Q111bof the display substrate shown inFIG.18. As shown inFIGS.18to20, for convenience of description, the functional region Q111in the first region Q11is divided into first functional sub-regions Q111aand a redundant functional region Q111b. Each first functional sub-region Q111ais provided with one coil part70of the near field communication antenna, and a region between two adjacent first functional sub-regions Q111aforms the redundant functional region Q111b. The coil part70in the first functional sub-region Q111ahas the same structure as that described above, that is, includes the first conductive lines701and the second conductive lines702, with the first conductive lines701intersecting with the second conductive lines702. In the embodiment of the present disclosure, a plurality of seventh conductive lines150and a plurality of eighth conductive lines160are disposed in the redundant functional region Q111b, with the seventh conductive lines150intersecting with the eighth conductive lines160. Each seventh conductive line150is a partial structure of one of the first conductive structures700, and each eighth conductive line160is a partial structure of one of the second conductive structure800. With such arrangement, the wiring uniformity on the display substrate is guaranteed so that the display substrate has a uniform aperture ratio.

Further, the first conductive line701and the seventh conductive line150in a same first conductive structure700should be disconnected, and a minimum distance between the first conductive line701and the seventh conductive line150closest thereto in a same first conductive structure700should satisfies that no coupling is generated between signals on the first conductive line701and the seventh conductive line150. Similarly, the second conductive line702and the eighth conductive line160in a same second conductive structure800should be disconnected, and a minimum distance between the second conductive line702and the eighth conductive line160closest thereto in a same second conductive structure800should satisfies that no coupling is generated between signals on the second conductive line702and the eighth conductive line160. In some examples, a distance between the first conductive line701and the seventh conductive line150closest thereto in a same first conductive structure700ranges from 2 μm to 6 μm: for example, the distance is about 4 μm. A distance between the eighth conductive line160and the second conductive line702closest thereto in a same second conductive structure800ranges from 2 μm to 6 μm: for example, the distance is about 4 μm.

In some examples, when the coil part70has a U-shaped structure, each first functional sub-region Q111ahas a shape adapted to the shape of the coil part70. Therefore, the first functional sub-region Q111aalso has a U shape. The redundant functional region Q111bis located between two adjacent first functional sub-regions Q111a. Therefore, the redundant functional region Q111bis defined by adjacent first functional sub-regions Q111a, and thus also has a U shape. Meanwhile, the redundant coil part has a U-shaped structure. Specifically, the redundant coil part includes two first redundant sub-structures1401which are arranged side by side in the first direction X and each extend in the second direction Y, and a second redundant sub-structure1402extending in the first direction X and connected between the two first redundant sub-structures1401. The first redundant sub-structures1401and the second redundant sub-structure1402each include the seventh conductive line150and the eighth conductive line160. The eighth conductive line160in each first redundant sub-structure1401extends to a region where the second redundant sub-structure1402is located, and the seventh conductive line150in the second redundant sub-structure1402extends to a region where the first redundant sub-structure1401is located. Therefore, the electrical connection between the eighth conductive lines160in the two first redundant sub-structures1401and the seventh conductive line150in the second redundant sub-structure1402is achieved, and thus the electrical connection between the two first redundant sub-structures1401and the second redundant sub-structure1402is achieved. Further, in order to avoid signal coupling between the coil part70and the redundant coil part as much as possible, in some implementations, a broken design is applied to the seventh conductive line150in the first redundant sub-structure1401and the eighth conductive line160in the second redundant sub-structure1402, so as to prevent the first conductive line701and the seventh conductive line150on the same first conductive structure700from being coupled to affect normal operation of the display substrate, and prevent the second conductive line702and the eighth conductive line160on the same second conductive structure800from being coupled to affect normal operation of the display substrate.

Specifically, in the embodiment of the present disclosure, each seventh conductive line150in the first redundant sub-structure1401includes a plurality of second conductive sub-lines1501arranged side by side in the first direction X; and a gap between adjacent second conductive sub-lines1501is located between adjacent sub-pixels. Similarly, each eighth conductive line160in the second redundant sub-structure1402includes a plurality of third conductive sub-lines1601arranged side by side in the second direction Y; and a gap between adjacent third conductive sub-lines1601is located between adjacent sub-pixels.

In some examples, in the above case, for any of the seventh conductive lines150in the first redundant sub-structures1401, the gap between adjacent second conductive sub-lines1501has a width L24ranging from 2 μm to 6 μm: for example, L24is about 4 μm. For any of the eighth conductive lines160in the second redundant sub-structure1402, the gap between adjacent third conductive sub-lines1601has a width L25ranging from 2 μm to 6 μm: for example, L25is about 4 μm. By reasonably setting the gap between the second conductive sub-lines1501on each seventh conductive line150of the first redundant sub-structures1401, and the gap between the third conductive sub-lines1601on each eighth conductive line160of the second redundant sub-structure1402, coupling between adjacent coil parts70in the near field communication antenna can be affectively avoided.

In some examples, when the peripheral region Q2of the display substrate is provided with the common electrode line400as described above, the eighth conductive lines160of the first redundant sub-structure1401and the seventh conductive lines150of the second redundant sub-structure1402are both electrically connected to the common electrode line400. For example, the common electrode line400includes the first common electrode sub-line and the second common electrode sub-line as described above. In this case, each eighth conductive line160of the first redundant sub-structures1401is electrically connected to the first common electrode sub-line through a via penetrating through the interlayer insulation layer50, and each seventh conductive line150of the second redundant sub-structure1402is electrically connected to the second common electrode sub-line through a via penetrating through the interlayer insulation layer50, so that voltages on the seventh conductive lines150and the eighth conductive lines160in the redundant coil part share a common voltage, thereby preventing the seventh conductive lines150and the eighth conductive lines160from entering a floating state. Certainly, since the eighth conductive lines160of the first redundant sub-structures1401intersect with the seventh conductive lines150of the second redundant sub-structure1402, and are electrically connected with the seventh conductive lines150of the second redundant sub-structure1402through vias penetrating through the interlayer insulation layer50, it is also possible that only each eighth conductive line160of the two first redundant sub-structures1401is electrically connected to the first common electrode sub-line through a via penetrating through the interlayer insulation layer50: or only each seventh conductive line150of the second redundant sub-structure1402is electrically connected to the second common electrode sub-line through a via penetrating through the interlayer insulation layer50. Either of such two methods can achieve that voltages on the seventh conductive lines150and the eighth conductive lines160in the redundant coil part share a common voltage.

In some examples, when a plurality of coil parts70are provided in the near field communication antenna, then the near field communication antenna further includes a connection jumper130on the base substrate10. The connection jumper130is connected to the coil parts70to form a spiral coil.

In order to further clarify the connection relationship between the coil part70and the connection jumper130in the near field communication antenna, an explanation is given in the embodiment of the present disclosure by taking the near field communication antenna including two coil parts70, called a first coil part70aand a second coil part70b, respectively, as an example. As shown inFIG.19, the second coil part70bis embedded in the first coil part70a, the first coil part70aand the second coil part70beach include a first end and a second end, and two ends of the connection jumper130are connected to the first end of the first coil part70aand the second end of the second coil part70b, respectively. The second end of the first coil part70aserves as the first end of the near field communication antenna, and the first end of the second coil part70bserves as the second end of the near field communication antenna. In this case, in order to facilitate bonding between the near field communication antenna and the flexible circuit board to be electrically connected to the control circuit, the near field communication antenna further includes a first extraction electrode703and a second extraction electrode704which are electrically connected to the second end of the first coil part70aand the first end of the second coil part70b, respectively. The first extraction electrode703and the second extraction electrode704may each include a first extraction part7031and a second extraction part7032which are sequentially arranged in a direction away from the base substrate and electrically connected. In some examples, the first extraction part7031is disposed in the same layer as the first conductive structures700, and the second extraction part7032is disposed in the same layer as the second conductive structures. In this case, the first extraction part7031and the second extraction part7032of the first extraction electrode703(the second extraction electrode704) are electrically connected through a via penetrating through the interlayer insulation layer. In this case, the second extraction part of the first extraction electrode703is electrically connected to the second conductive line702of one first sub-structure71; and the second extraction part of the second extraction electrode704is electrically connected to the second conductive line702of another first sub-structure71. In the embodiment of the present disclosure, by using the first extraction part7031and the second extraction part7032being electrically connected as the first extraction electrode703(the second extraction electrode704), a reduced resistance can be achieved.

It should be noted that, takingFIG.18as an example, the first region Q11is located on a side of the second region Q12close to the second pad region Q22, and a first connection pad A and a second connection pad B are provided in the second pad region Q22. In this case, the second extraction part7032of the first extraction electrode703may be electrically connected to the first connection pad A through the first extraction line; the second extraction part7032of the second extraction electrode704may be electrically connected to the second connection pad B through the second extraction line; and then, the flexible circuit board is bonded to the first connection pad A and the second connection pad B to realize connection between the coil part70of the near field communication antenna and the control circuit. The first extraction line and the second extraction line may be disposed in the same layer and made of the same material as the second conductive structures800. In this manner, the electrical connection between the first extraction line and the second extraction part7032of the first extraction electrode703, as well as the electrical connection between the second extraction line and the second extraction part7032of the second extraction electrode704, are facilitated. Similarly, the first region Q11may be located on a side of the second region Q12close to the first pad region Q21. That is, the near field communication antenna is disposed on a side of the display region Q1close to the first pad region Q21. Alternatively, it is also possible that first regions Q11are disposed on both a side of the second region Q12close to the first pad region Q21and a side of the second region Q12close to the second pad region Q22. In this case, two near field communication antennas are disposed in the display region Q1. Regardless of one or two or more near field communication antennas being provided, the first end and the second end of the coil part70of each near field communication antenna may adopt the above-described structure.

Further, the connection jumper130in the near field communication antenna may be disposed in the peripheral region Q2, and may be disposed in the same layer and made of the same material as the first conductive structures700. In this case, the second conductive lines702at a first end of the first coil part70amay be electrically connected to the connection jumper130through a via penetrating through the interlayer insulation layer50, and the second conductive lines702at a second end of the second coil part70bmay be electrically connected to the connection jumper130through a via penetrating through the interlayer insulation layer50. In some examples, the connection jumper130may be a partial structure of one of the first conductive structures700. In this case, the connection jumper130extends in the first direction X. Certainly, in the embodiment of the present disclosure, the connection jumper130may be disposed in the peripheral region Q2.

In some examples, the display substrate may further include a flexible circuit board, and when a plurality of coil parts70are provided in the near field communication antenna, the connection jumper130in the near field communication antenna may be formed on the flexible circuit board. Here, the coil parts70in the near field communication antenna may adopt the same structure as described above. In this case, as shown inFIG.21, the second end of the first coil part70ais connected to the first extraction electrode703, and the second extraction part7032of the first extraction electrode703may be electrically connected to the first connection pad A through the first extraction line; the first end of the second coil part70bis connected to the second extraction electrode704, and the second extraction part7032of the second extraction electrode704may be electrically connected to the second connection pad B through the second extraction line; and the connection jumper130is bonded to the first connection pad A and the second connection pad B on the display substrate through connection pads on the flexible circuit board. In this manner, a spiral coil of the near field communication antenna is formed.

In order to further clarify the specific structure of the display substrate according to the embodiments of the present disclosure, three structural examples of the display substrate are specifically give below, but it should be noted that the three examples do not form any limitation to the scope of the embodiments of the present disclosure.

As a first example, as shown inFIG.3, the display region Q1in the display substrate includes a first region Q11and a second region Q12. The first region Q11is located on a side of the second region Q12close to the second pad region Q22. A near field communication antenna having one coil part70is disposed in the first region Q11. The first region Q11includes a non-functional region Q112and a functional region Q111surrounding the non-functional region Q112. The coil part70is disposed in the functional region Q111. The specific structure of the coil part70is as described above, and thus will not be repeated here. The fifth conductive lines80and the sixth conductive lines90as described above are disposed in the non-functional region Q112, with the fifth conductive lines80intersecting with the sixth conductive lines90; and the third conductive lines110and the fourth conductive lines120as described above are disposed in the second region Q12, with the third conductive lines110intersecting with the fourth conductive lines120. The third conductive lines110, the fourth conductive lines120, the fifth conductive lines80, and the sixth conductive lines90have been described in detail above, and thus are not repeated here.

As a second example, as shown inFIG.18, the display region Q1in the display substrate includes a first region Q11and a second region Q12. The first region Q11is located on a side of the second region Q12close to the second pad region Q22. A near field communication antenna having two coil parts70is disposed in the first region Q11. The two coil parts70are referred to as a first coil part70aand a second coil part70b, respectively. The first region Q11includes a non-functional region Q112and a functional region Q111surrounding the non-functional region Q112. The functional region Q111includes two first functional sub-regions Q111a, and a redundant functional region Q111bbetween the two first functional sub-regions Q111a. The first coil part70aand the second coil part70bare disposed in the two first functional sub-regions Q111a, respectively. The specific structures of the first coil part70aand the second coil part70bare as described above, and thus are not repeated here. The seventh conductive lines150and the eighth conductive lines160as described above are disposed in the redundant functional region Q111b: the fifth conductive lines80and the sixth conductive lines90as described above are disposed the non-functional region Q112, with the fifth conductive lines80intersecting with the sixth conductive lines90; and the third conductive lines110and the fourth conductive lines120as described above are disposed in the second region Q12, with the third conductive lines110intersecting with the fourth conductive lines120. The third conductive lines110, the fourth conductive lines120, the fifth conductive lines80, the sixth conductive lines90, the seventh conductive lines150, and the eighth conductive lines160have been described in detail above, and thus are not repeated here.

In a third example,FIG.22is a schematic diagram of a display substrate according to an embodiment of the present disclosure. As shown inFIG.22, the display region Q1in the display substrate includes two first regions Q11and a second region Q12. One of the two first regions Q11is located on a side of the second region Q12close to the first pad region Q21, and the other of the two first regions Q11is located on a side of the second region Q12close to the second pad region Q22. One of the two first regions Q11is provided with the same structure as that shown inFIG.3, i.e., provided with the near field communication antenna having two coil parts70, which will not described in detail here. The other of the two first regions Q11is provided with the same structure as that shown inFIG.18, i.e., provided with the near field communication antenna having one coil part70, which will not described in detail here. The third conductive lines110and the fourth conductive lines120as described above are disposed in the second region Q12, with the third conductive lines110intersecting with the fourth conductive lines120. The third conductive lines110, and the fourth conductive lines120have been described in detail above, and thus are not repeated here.

In a second aspect, an embodiment of the present disclosure further provides a display apparatus, including the above display substrate, and an opposite substrate, the display substrate and the opposite substrate are oppositely arranged, and aligned and assembled into a cell. The opposite substrate is provided with a black matrix, and orthographic projections of the gate lines GL, the data lines DL, the first conductive structures700and the second conductive structures800on the base substrate10are all located within an orthographic projection of the black matrix on the base substrate. Certainly, the display apparatus may further include a control circuit connected to the near field communication antenna.

The display apparatus may be a liquid crystal display panel, an OLED panel, a mobile phone, a tablet, a digital album, a navigator or any other product or device having a display function and a communication function.

It will be appreciated that the above implementations are merely exemplary implementations for the purpose of illustrating the principle of the present disclosure, and the present disclosure is not limited thereto. It will be apparent to those skilled in the art that various modifications and variations may be made to the exemplary implementations without departing from the spirit or essence of the present disclosure. Such modifications and variations should also be considered as falling into the protection scope of the present disclosure.