Display panel

Abstract

To provide a display panel in which liquid crystal is driven using electrodes provided on two opposite sides of a liquid crystal layer and at the same time, a structure design enough to achieve a highly reliable touch function is included.SOLUTION: A liquid crystal layer is provided between a first substrate and a second substrate. A plurality of bridge pads are provided on the first substrate and each bridge pad is electrically connected to a touch signal line. A plurality of electrode patterns are provided with a space from each other on the second substrate along a first direction and a second direction and overlap with a plurality of pixel electrodes of a plurality of pixel structures. A plurality of first spacers are provided on the second substrate and are in contact with the respective bridge pads along a stacking direction of the first substrate and the second substrate. Each electrode pattern is electrically connected to one of these bridge pads by covering one of these first spacers.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a display panel, and more particularly to a display panel with a touch function. [Background technology]

[0002] In existing LCD panels with touch functionality, the liquid crystal layer is driven in in-plane switching (IPS) mode. When a user touches a screen, the position can be detected by detecting the change in capacitance between each set of pixel electrodes and common electrodes located on the same substrate. However, the above-mentioned touch sensing structure cannot be applied to display panels that drive liquid crystal in twisted nematic (TN) mode, for example, because the change in capacitance caused by touch is blocked by the liquid crystal capacitance generated during display. Summary of the Invention Problem to be solved by the invention

[0003] The present invention provides a display panel that uses electrodes on two opposite sides of the liquid crystal layer to drive the liquid crystal, and at the same time has a structural design sufficient to achieve reliable touch functionality. [Means for solving the problem]

[0004] The display panel of the present invention includes a first substrate, a second substrate, a liquid crystal layer, a plurality of data lines, a plurality of scan lines, a plurality of touch signal lines, a plurality of pixel structures, a plurality of bridge pads, a plurality of electrode patterns, and a plurality of first spacers. The first substrate and the second substrate are stacked along a stacking direction. A liquid crystal layer is provided between the first substrate and the second substrate. The plurality of data lines are arranged on the first substrate along a first direction. The plurality of scan lines are arranged on the first substrate along a second direction. The first direction intersects with the second direction. The plurality of touch signal lines are provided on the first substrate. A plurality of pixel structures are provided on the first substrate, each including an active element and a pixel electrode. The active element is electrically connected to the pixel electrode, one of the plurality of data lines, and one of the plurality of scan lines. A plurality of bridge pads are provided on the first substrate, each electrically connected to the touch signal lines. The plurality of electrode patterns are respectively provided on the second substrate at intervals along the first direction and the second direction and overlap with the plurality of pixel electrodes of the plurality of pixel structures. The plurality of first spacers are provided on the second substrate and are positioned between the electrode patterns and the second substrate. The first spacers respectively abut the bridge pads along the stacking direction, and each electrode pattern is electrically connected to one of the bridge pads by covering one of the first spacers.

[0005] In one embodiment of the present invention, the display panel further includes a plurality of second spacers disposed on the second substrate, wherein a first height of each of the first spacers in the stacking direction is greater than a second height of each of the second spacers in the stacking direction.

[0006] In one embodiment of the present invention, the plurality of first spacers and the plurality of second spacers of the above-mentioned display panel are the same film layer.

[0007] In one embodiment of the present invention, the plurality of electrode patterns of the above-mentioned display panel cover the plurality of first spacers, and the plurality of second spacers are provided on the opposite side of the electrode patterns to the second substrate.

[0008] In one embodiment of the present invention, the plurality of second spacers of the above-mentioned display panel overlap with the plurality of pixel electrodes of the plurality of pixel structures.

[0009] In one embodiment of the present invention, the plurality of bridge pads and the plurality of pixel electrodes of the above-mentioned display panel are in the same film layer.

[0010] In one embodiment of the present invention, each pixel structure of the above-mentioned display panel further includes a first transfer pattern disposed between the pixel electrode and the active element, and the pixel electrode is electrically connected to the active element through the first transfer pattern. A second transfer pattern is disposed between each bridge pad and one of the plurality of touch signal lines. Each bridge pad is electrically connected to one of the touch signal lines through the second transfer pattern, and the first transfer pattern and the second transfer pattern are in the same film layer.

[0011] In one embodiment of the present invention, each pixel structure of the above-mentioned display panel further includes a reflective layer, the reflective layer having an aperture overlapping the pixel electrode, and the reflective layer defines a reflective area of ​​each pixel structure, the aperture of the reflective layer defines a light-transmitting area of ​​each pixel structure, and the orthogonal projection of the aperture on the substrate surface of the first substrate is located within the orthogonal projection of the pixel electrode on the substrate surface.

[0012] In one embodiment of the present invention, the plurality of bridge pads and the reflective layer of each pixel structure of the above-mentioned display panel are the same film layer.

[0013] In one embodiment of the present invention, the display panel has a transfer pattern between each bridge pad and one of the plurality of touch signal lines, each bridge pad is electrically connected to one of the touch signal lines through the transfer pattern, and the transfer pattern and the pixel electrode are in the same film layer. [Effects of the Invention]

[0014] Based on the above, in a display panel according to one embodiment of the present invention, in addition to the pixel structures, data lines, and scan lines, the first substrate further includes touch signal lines and bridge pads electrically connected to each other. The second substrate further includes, in addition to the electrode patterns, first spacers suitable for contacting the bridge pads. The electric field generated when the pixel electrodes on the first substrate and the electrode patterns on the second substrate are electrically connected is used to drive the liquid crystal layer, thereby displaying an image. Furthermore, the electrode patterns cover the first spacers, thereby electrically connecting with the touch signal lines on the first substrate via the bridge pads, thereby realizing the touch function of the display panel. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a front view of a display panel according to a first embodiment of the present invention. [Figure 2] 2 is a partial enlarged view of a portion of the film layer of the display panel of FIG. 1. [Figure 3] 2 is a partial enlarged view of a portion of the film layer of the display panel of FIG. 1. [Figure 4] FIG. 4 is a cross-sectional view of the display panel of FIGS. 2 and 3. [Figure 5] FIG. 4 is a cross-sectional view of the display panel of FIGS. 2 and 3. [Figure 6] 6 is a cross-sectional view of another modified embodiment of the display panel of FIG. 5. FIG. [Figure 7] FIG. 10 is a front view of a portion of a film layer of a display panel according to a second embodiment of the present invention. [Figure 8] FIG. 10 is a front view of a portion of a film layer of a display panel according to a second embodiment of the present invention. [Figure 9] FIG. 9 is a cross-sectional view of the display panel of FIGS. 7 and 8. DETAILED DESCRIPTION OF THE INVENTION

[0016] The above and other technical contents, features and advantages of the present invention will be clearly described in the following detailed description of preferred embodiments with reference to the drawings. Directional terms such as up, down, left, right, front, and rear used in the following embodiments are only for the purpose of referring to the directions in the accompanying drawings. Therefore, the directional terms used are for the purpose of explanation only and do not limit the present invention.

[0017] FIG. 1 is a front view of a display panel according to a first embodiment of the present invention. FIGS. 2 and 3 are partially enlarged views of a portion of a film layer of the display panel of FIG. 1. FIGS. 4 and 5 are cross-sectional views of the display panel of FIGS. 2 and 3. FIG. 6 is a cross-sectional view of another modified embodiment of the display panel of FIG. 5. FIGS. 2 and 3 correspond to region Z1 in FIG. 1. FIG. 4 corresponds to cross-sectional line A-A' in FIGS. 2 and 3. FIG. 5 corresponds to cross-sectional line B-B' in FIGS. 2 and 3.

[0018] 1 to 4, the display panel 10 includes a first substrate 101, a second substrate 102, a liquid crystal layer LCL, a plurality of data lines DL, a plurality of scan lines SL, and a plurality of pixel structures PX. The first substrate 101 and the second substrate 102 are stacked along a stacking direction (e.g., direction D3). The liquid crystal layer LCL is provided between the first substrate 101 and the second substrate 102. Unless otherwise specified below, the overlapping relationship between the two components is defined by the stacking direction, and a description of the overlapping direction will be omitted.

[0019] In this embodiment, a plurality of data lines DL are arranged on the first substrate 101 along direction D1 and extend in direction D2. A plurality of scan lines SL are arranged on the first substrate 101 along direction D2 and extend in direction D1. Specifically, the data lines DL intersect with the scan lines SL and define a plurality of pixel regions of the display panel 10. A plurality of pixel structures PX correspond to the pixel regions, are provided on the first substrate 101, and are each electrically connected to one scan line SL and one data line DL. For example, the pixel structures PX may be arranged in a plurality of columns and a plurality of rows along direction D1 and direction D2, respectively. That is, the pixel structures PX are arranged in an array on the first substrate 101.

[0020] Specifically, each pixel structure PX includes an active element T and a pixel electrode PE, which are electrically connected to each other. In this embodiment, a method for forming the active element T may include the following steps: forming a gate electrode GE, a gate insulating layer 110, a semiconductor pattern SC, a source electrode SE, and a drain electrode DE, in this order, on a first substrate 101. The semiconductor pattern SC is disposed to overlap the gate electrode GE. The source electrode SE and the drain electrode DE overlap the semiconductor pattern SC and are in electrical contact with two different regions of the semiconductor pattern SC. In this embodiment, the gate electrode GE of the active element T may be selectively disposed below the semiconductor pattern SC to form a bottom-gate thin film transistor (TFT), but is not limited to this. In another embodiment, the gate electrode of the active element may be selectively disposed above the semiconductor pattern SC to form a top-gate thin film transistor (TFT).

[0021] Furthermore, the active element T may be covered by an insulating layer 120 and an insulating layer 130, in order. In this embodiment, the insulating layer 120 is, for example, a passivation layer, and the insulating layer 130 is, for example, a planarization layer. For example, in this embodiment, the pixel structure PX further includes a common electrode CE, a capacitor electrode CPE, and a transfer pattern TP1, which overlap each other. The common electrode CE is disposed between the first substrate 101 and the gate insulating layer 110. The capacitor electrode CPE is disposed between the gate insulating layer 110 and the insulating layer 120. The transfer pattern TP1 is disposed between the insulating layer 120 and the insulating layer 130. Thus, the capacitor electrode CPE, the common electrode CE, and the gate insulating layer 110 sandwiched therebetween can form a storage capacitor. In other embodiments, the pixel structure PX may not include the common electrode CE and the capacitor electrode CPE, which overlap each other.

[0022] In this embodiment, the insulating layer 130 has an opening 130оp1, which exposes a portion of the surface of the transfer pattern TP1. The pixel electrode PE of the pixel structure PX is disposed on the surface of the insulating layer 130 and is electrically connected to the transfer pattern TP1 through the opening 130оp1 of the insulating layer 130. The transfer pattern TP1 is electrically connected to the capacitor electrode CPE through a contact hole TH1 in the insulating layer 120, and the capacitor electrode CPE may extend from the drain electrode DE of the active element T, but is not limited to this.

[0023] It should be noted that the gate electrode GE, the source electrode SE, the drain electrode DE, the semiconductor pattern SC, the gate insulating layer 110, the passivation layer (i.e., the insulating layer 120), and the planarization layer (i.e., the insulating layer 130) may be realized by any gate electrode, any source electrode, any drain electrode, any semiconductor pattern, any gate insulating layer, any passivation layer, and any planarization layer used in a reflective display panel that are well known to those skilled in the art, and the gate electrode GE, the source electrode SE, the drain electrode DE, the semiconductor pattern SC, the gate insulating layer 101, the passivation layer, and the planarization layer may be formed by any method well known to those skilled in the art, which will not be described in detail here.

[0024] In this embodiment, the pixel electrode PE is, for example, a reflective electrode, and the material of the reflective electrode includes a metal, an alloy, a nitride of a metal material, an oxide of a metal material, an oxynitride of a metal material, or other suitable material, or a laminate of a metal material and another conductive material. That is, the display panel 10 in this embodiment is, but is not limited to, a reflective liquid crystal display panel. In some embodiments, the display panel 10 may be a reflective or transflective display panel.

[0025] 1, 2, and 5, the display panel 10 further includes a plurality of touch signal lines TL and a plurality of bridge pads BP. In this embodiment, the touch signal lines TL are arranged at intervals on the first substrate 101 along the direction D1 and extend in the direction D2. For example, but not limited to, the touch signal lines TL and the data lines DL may be formed on the same film layer.

[0026] A plurality of bridge pads BP are provided on the first substrate 101 and are electrically connected to the touch signal lines TL, respectively. Specifically, in this embodiment, a transfer pattern TP2 may be provided between each bridge pad BP and a corresponding touch signal line TL, and each bridge pad BP is electrically connected to the corresponding touch signal line TL through the transfer pattern TP2. For example, the transfer pattern TP2 is electrically connected to the touch signal line TL through a contact hole TH2 in the insulating layer 120, and the bridge pad BP is electrically connected to the transfer pattern TP2 through an opening 130оp2 in the insulating layer 130. To avoid additional manufacturing processes, the bridge pad BP and the plurality of pixel electrodes PE may be formed on the same film layer, and the transfer pattern TP2 and the transfer pattern TP1 of the pixel structure PX may be formed on the same film layer, but this is not limitative.

[0027] 1 to 5, the display panel 10 further includes a plurality of electrode patterns EP and a plurality of spacers SP. These electrode patterns EP are arranged at intervals on the second substrate 102 along directions D1 and D2, respectively, and overlap with the plurality of pixel electrodes PE of the plurality of pixel structures PX. The plurality of spacers SP are provided on the second substrate 102 and partition a chamber that accommodates a liquid crystal layer LCL between the first substrate 101 and the second substrate 102.

[0028] In this embodiment, the spacers SP include, for example, a plurality of first spacers SP1 and a plurality of second spacers SP2. The first spacers SP1 may overlap a plurality of bridge pads BP, and the second spacers SP2 may overlap a plurality of pixel electrodes PE of a plurality of pixel structures PX. It is particularly noteworthy that, in the stacking direction (e.g., direction D3) of the first substrate 101 and the second substrate 102, the first height H1 of the first spacers SP1 is higher than the second height H2 of the second spacers SP2. The plurality of first spacers SP1 abut against the plurality of bridge pads BP, respectively, and each electrode pattern EP is electrically connected to a corresponding one of the plurality of bridge pads BP by covering one of the first spacers SP1. That is, the electrical connection between the electrode pattern EP on the second substrate 102 and the touch signal line TL on the first substrate 101 may be achieved by the abutting relationship between the first spacers SP1 and the bridge pads BP (shown in FIG. 5).

[0029] It is particularly noteworthy that in this embodiment, the operation cycle of the display panel 10 may be divided into a display period and a touch period. During the display period, an electric field generated between the electrode pattern EP and the plurality of pixel electrodes PE rotates and drives the plurality of liquid crystal molecules (not shown) in the liquid crystal layer LCL to form an alignment state corresponding to the direction and strength of the electric field. The change in the alignment of the liquid crystal molecules changes the polarization state of light passing through the liquid crystal layer LCL, thereby forming an optical output brightness corresponding to the alignment state.

[0030] During the touch period, these electrode patterns EP may be used as sensing electrodes for the touch operation. The abutting relationship between the plurality of first spacers SP1 and the plurality of bridge pads BP described above can prevent the capacitance change sensed by the electrode patterns EP on the second substrate 102 from being blocked by the liquid crystal capacitance during display. This allows the display panel 10, which drives display pixels using the electrode patterns EP and pixel electrodes PE, to have a highly reliable touch function.

[0031] In this embodiment, the first spacers SP1 and the second spacers SP2 may be formed in the same film layer and are located between the electrode patterns EP and the second substrate 102. For example, the first spacers SP1 and the second spacers SP2 may be manufactured using the same photomask, such as a half-tone mask. However, the present invention is not limited to this. In another modified embodiment, the second spacers SP2-A of the display panel 10A may be disposed on the opposite side of the electrode patterns EP from the second substrate 102 (as shown in FIG. 6). That is, the second spacers SP2-A and the first spacers SP1 may be formed in different film layers. For example, the first spacers SP1 and the second spacers SP2-A may be manufactured separately using two photomasks. This design prevents the second spacers SP2-A of the display panel 10A from contacting the pixel electrodes PE due to external pressure, thereby preventing electrical conduction between the electrode patterns EP and the pixel electrodes PE.

[0032] 4 and 5, in this embodiment, a color filter layer CFL and a covering layer OC may be optionally further provided on the second substrate 102. The color filter layer CFL is provided between the covering layer OC and the second substrate 102. A plurality of electrode patterns EP are provided on the covering layer OC. For example, the color filter layer CFL may have a plurality of filter patterns (not shown). These filter patterns overlap with a plurality of pixel electrodes PE, respectively, and are suitable for passing a plurality of types of monochromatic light (e.g., red light, green light, and blue light). However, the present invention is not limited thereto. In other embodiments, the color filter layer CFL may not be provided on the second substrate 102.

[0033] The present invention will be described in detail below with reference to several other embodiments, in which the same components are designated by the same reference numerals, and the description of the same technical content will be omitted. The omitted parts can be referred to in the previous embodiments, and will not be described again below.

[0034] Figures 7 and 8 are front views of a portion of a film layer of a display panel according to a second embodiment of the present invention. Figure 9 is a cross-sectional view of the display panel of Figures 7 and 8. Figure 9 corresponds to the cross-sectional lines CC' and DD' of Figures 7 and 8.

[0035] 7 to 9, the main difference between the display panel 20 of this embodiment and the display panel 10 of FIGS. 2 to 5 is the design of the pixel structure. Specifically, in the display panel 20 of this embodiment, the pixel structure PX-A further includes a reflective layer RFL. The reflective layer RFL is disposed on the pixel electrode PE-A and has an opening RFLop overlapping with the pixel electrode PE-A. For example, the orthogonal projection of the opening RFLop of the reflective layer RFL on the substrate surface 101s is located within the orthogonal projection of the pixel electrode PE-A on the substrate surface 101s. That is, the opening RFLop of the reflective layer RFL completely overlaps with the pixel electrode PE-A.

[0036] In this embodiment, the reflective layer RFL defines a reflective area RA of the pixel structure PX, and the opening RFLоp defines a light-transmitting area TA of the pixel structure PX. Specifically, the display panel 20 of this embodiment may be a transflective liquid crystal display panel or a micro-transmissive liquid crystal display panel.

[0037] Furthermore, in this embodiment, insulating layers 140 and 150 are further provided between the pixel electrode PE-A and the insulating layer 130. The insulating layers 140 and 150 are, for example, but not limited to, passivation layers. It is particularly noteworthy that in this embodiment, the common electrode CE-A of the pixel structure PX-A is provided between the insulating layers 140 and 150. Therefore, compared to the pixel structure PX of FIG. 4 which has only one storage capacitor, the pixel structure PX-A of this embodiment has two storage capacitors connected in parallel, one of which is composed of the capacitor electrode CPE-A, the common electrode CE-A, and the insulating layer 130 sandwiched therebetween, and the other is composed of the pixel electrode PE-A, the common electrode CE-A, and the insulating layer 150 sandwiched therebetween.

[0038] In addition, in this embodiment, both the bridge pad BP-A and the transfer pattern TP-A are disposed on the insulating layer 150, and no film layer is disposed between them. Specifically, the bridge pad BP-A and the reflective layer RFL of the pixel structure PX-A may be formed on the same film layer, and the transfer pattern TP-A and the pixel electrode PE-A of the pixel structure PX-A may be formed on the same film layer. This simplifies the manufacturing process of the display panel 20.

[0039] In this embodiment, a dummy pattern DP may be provided between the capacitor electrode CPE-A and the first substrate 101, and the dummy pattern DP and the gate electrode GE may be the same film layer. For example, the dummy pattern DP has a floating potential and is configured to improve the surface flatness in the reflective area RA of the pixel structure PX-A, thereby improving the manufacturing yield and reflectivity of the reflective layer RFL.

[0040] The arrangement of the first spacers SP1, the electrode patterns EP, the bridge pads BP-A, and the touch signal lines TL in this embodiment, as well as the resulting technical effects, are similar to those of the display panel 10 in Figure 5. For detailed descriptions, please refer to the relevant paragraphs in the above embodiment, and they will not be repeated here. In addition, the pixel structure PX-A in this embodiment has a light-transmitting area TA, and the common electrode CE-A, the capacitor electrode CPE-A, and the dummy pattern DP have openings CEоp, CPEоp, and DPоp that overlap the light-transmitting area TA, respectively.

[0041] To summarize the above, in a display panel according to one embodiment of the present invention, in addition to the pixel structures, data lines, and scan lines, the first substrate further includes touch signal lines and bridge pads electrically connected to each other. The second substrate further includes, in addition to the electrode patterns, first spacers suitable for contacting the bridge pads. The electric field generated when the pixel electrodes on the first substrate and the electrode patterns on the second substrate are electrically connected is used to drive the liquid crystal layer, thereby producing a display. Furthermore, the electrode patterns cover the first spacers, thereby electrically connecting with the touch signal lines on the first substrate via the bridge pads, thereby realizing the touch function of the display panel. [Industrial Applicability]

[0042] The layout relationship of the spacers, electrode patterns, and bridge pads of the present invention can be applied to the structural design of a display panel provided with a liquid crystal layer. [Explanation of symbols]

[0043] 10, 10A, 20...Display panel 101...First board 101s…Substrate surface 102...Second board 110...Gate insulating layer 120, 130, 140, 150...insulating layer 130op1, 130op2, CEop, CPEop, DPop, RFLop...Aperture BP, BP-A...Bridge pad CE, CE-A...Common electrode CFL: Color filter layer CPE, CPE-A... Capacitor electrodes DE: Drain electrode DL...Data line DP...Dummy Pattern D1, D2, D3…direction EP: Electrode pattern GE: gate electrode H1...First height H2: Second height LCL…Liquid crystal layer OC…Covering layer PE, PE-A...pixel electrodes PX, PX-A...pixel structure RA…Reflection area RFL…reflection layer SC: Semiconductor pattern SE: Source electrode SL...scanning line SP, SP1, SP2, SP2-A...Spacers T...active member TA…light transmission area TH1, TH2...contact holes TL: Touch signal line TP1, TP2, TP-A...Transfer pattern Z1…area A-A', B-B', C-C', D-D'...Cross section line

Claims

1. a first substrate and a second substrate stacked along a stacking direction; a liquid crystal layer provided between the first substrate and the second substrate; a plurality of data lines arranged on the first substrate along a first direction; a plurality of scanning lines arranged on the first substrate along a second direction intersecting the first direction; a plurality of touch signal lines provided on the first substrate; a plurality of pixel structures provided on the first substrate, the pixel structures including an active member and a pixel electrode, the active member being electrically connected to the pixel electrode, one of the plurality of data lines, and one of the plurality of scan lines; a plurality of bridge pads disposed on the first substrate and electrically connected to the plurality of touch signal lines, respectively; a plurality of electrode patterns arranged on the second substrate at intervals along the first direction and the second direction, respectively, and overlapping with the plurality of pixel electrodes of the plurality of pixel structures; a plurality of first spacers provided on the second substrate and positioned between the plurality of electrode patterns and the second substrate, the plurality of first spacers abutting against the plurality of bridge pads along the stacking direction, and the plurality of electrode patterns covering one of the plurality of first spacers to be electrically connected to one of the plurality of bridge pads; a display panel including:

2. further comprising a plurality of second spacers disposed on the second substrate; The display panel according to claim 1 , wherein a first height of each of the plurality of first spacers along the stacking direction is greater than a second height of each of the plurality of second spacers along the stacking direction.

3. The display panel according to claim 2 , wherein the plurality of first spacers and the plurality of second spacers are formed in the same film layer.

4. The display panel according to claim 2 , wherein the plurality of electrode patterns cover the plurality of first spacers, and the plurality of second spacers are provided on a side of the plurality of electrode patterns opposite to the second substrate.

5. The display panel of claim 4 , wherein the second spacers overlap the pixel electrodes of the pixel structures.

6. The display panel according to claim 1 , wherein the plurality of bridge pads and the plurality of pixel electrodes are formed in the same film layer.

7. Each of the plurality of pixel structures further includes a first transfer pattern disposed between the pixel electrode and the active element, and the pixel electrode is electrically connected to the active element through the first transfer pattern; 2. The display panel of claim 1, wherein a second transfer pattern is provided between each of the plurality of bridge pads and one of the plurality of touch signal lines, each of the plurality of bridge pads is electrically connected to the one of the plurality of touch signal lines through the second transfer pattern, and the first transfer pattern and the second transfer pattern are made of the same film layer.

8. 2. The display panel of claim 1, wherein each of the plurality of pixel structures further comprises a reflective layer having an opening overlapping the pixel electrode, the reflective layer defining a reflective area of ​​each of the plurality of pixel structures, the opening of the reflective layer defining a light-transmitting area of ​​each of the plurality of pixel structures, and a positive projection of the opening on a substrate surface of the first substrate is located within a positive projection of the pixel electrode on the substrate surface.

9. The display panel according to claim 8 , wherein the bridge pads and the reflective layer of each of the pixel structures are the same film layer.

10. 9. The display panel of claim 8, wherein a transfer pattern is provided between each of the plurality of bridge pads and one of the plurality of touch signal lines, each of the plurality of bridge pads is electrically connected to the one of the plurality of touch signal lines through the transfer pattern, and the transfer pattern and the pixel electrode are made of the same film layer.

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