Display panel and display device

Abstract

A display panel (100) and a display device. A sub-pixel unit (PL) of the display panel (100) comprises a gate electrode (111), a pixel electrode (PE) and a shielding unit (170a), wherein the gate electrode (111) comprises a first side wall (111a) and a second side wall (111b) opposite each other, the shielding unit (170a) comprises a first shielding electrode (171) and a second shielding electrode (172), the orthographic projection of at least part of the first side wall (111a) on a film layer where the shielding unit (170a) is located is located within the first shielding electrode (171), and the orthographic projection of at least part of the second side wall (111b) on the film layer where the shielding unit (170a) is located is located within the second shielding electrode (172).

Description

Display panel and display device TECHNICAL FIELD

[0001] The present application relates to the display field, in particular to a display panel and a display device. BACKGROUND

[0002] Liquid crystal display panels (LCD) are widely used in various electronic devices such as mobile phones, digital cameras, computer screens or notebook screens.

[0003] In the related art liquid crystal display panel, a shielding electrode is usually used as a storage electrode and a shielding electrode of a pixel unit, the shielding electrode overlaps with a data line to shield the electric field of the data line, and a storage capacitor is formed between the shielding electrode and a pixel electrode, which can improve the transmittance and storage capacitance of the product. However, the setting of the shielding electrode will affect the electrical properties of the thin film transistor, so the shielding electrode in the area of the thin film transistor will be removed, resulting in that part of the edges of the gate electrode are not shielded by the shielding electrode, thereby causing the technical problem of light leakage. SUMMARY

[0004] The present application provides a display panel and a display device to improve the problem of light leakage at part of the edges of the gate electrode in the existing display panel.

[0005] To solve the above-mentioned solution, the technical scheme provided by the present application is as follows:

[0006] The present application provides a display panel, which comprises a plurality of scan lines and a plurality of data lines, and a plurality of sub-pixel units are enclosed by the plurality of scan lines and the plurality of data lines; the sub-pixel unit comprises:

[0007] a gate electrode comprising opposite first and second side walls, one of the gate electrodes being arranged between two corresponding data lines, the first side wall being arranged adjacent to one of the data lines, and the second side wall being arranged adjacent to the other data line;

[0008] a pixel electrode arranged between two corresponding data lines, and the pixel electrode being arranged separately from the gate electrode; and

[0009] a shielding unit comprising a first shielding electrode and a second shielding electrode arranged separately, and the first shielding electrode and the second shielding electrode extending from one end of the gate electrode away from the pixel electrode towards the pixel electrode;

[0010] At least part of the first side wall is projected onto the first shielding electrode on the film layer where the shielding unit is located, and at least part of the second side wall is projected onto the second shielding electrode on the film layer where the shielding unit is located.

[0011] The application further provides a display device comprising the display panel. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 is a structural diagram of the display panel of the application;

[0013] Fig. 2 is a sectional view of the display panel of the application;

[0014] Fig. 3 is a structural diagram of a sub-pixel unit in the display panel of the application;

[0015] Fig. 4 is a structural diagram of the first conductive layer in Fig. 3;

[0016] Fig. 5 is a structural diagram of the second conductive layer in Fig. 3;

[0017] Fig. 6 is a structural diagram of the active layer in Fig. 3;

[0018] Fig. 7 is a first structural diagram of the shielding layer in Fig. 3;

[0019] Fig. 8 is a structural diagram of two adjacent shielding units in the display panel of the application;

[0020] Fig. 9 is a structural diagram of the pixel electrode layer in Fig. 3;

[0021] Fig. 10 is a second structural diagram of the shielding layer in Fig. 3. Embodiments of the application

[0022] The technical solutions in the embodiments of the application will be apparently and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application. In addition, it should be understood that the specific embodiments described herein are only used for illustrating and explaining the application, and are not used for limiting the application.

[0023] In the description of the application, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0024] In addition, the terms "first", "second", etc. are used only for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Thus, features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, at least one of which can be one, two or more, unless otherwise specifically limited.

[0025] Referring to FIGS. 1-10, the present application provides a display panel 100, which includes a plurality of scan lines Scan and a plurality of data lines Data, the plurality of scan lines Scan and the plurality of data lines Data enclosing a plurality of sub-pixel units PL, and each sub-pixel unit PL including a gate electrode 111, a pixel electrode PE and a shielding unit 170a.

[0026] In the present embodiment, the gate electrode 111 includes opposite first and second side walls 111a and 111b, a gate electrode 111 is disposed between corresponding two data lines Data, the first side wall 111a is disposed adjacent to one data line Data, and the second side wall 111b is disposed adjacent to the other data line Data; the pixel electrode PE is disposed between corresponding two data lines Data, and the pixel electrode PE is disposed separately from the gate electrode 111; the shielding unit 170a includes a first shielding electrode 171 and a second shielding electrode 172 disposed separately, and the first shielding electrode 171 and the second shielding electrode 172 extend from an end of the gate electrode 111 away from the pixel electrode PE to the pixel electrode PE.

[0027] In the present embodiment, at least part of the first side wall 111a is located in the first shielding electrode 171 in orthographic projection on the film layer where the shielding unit 170a is located, and at least part of the second side wall 111b is located in the second shielding electrode 172 in orthographic projection on the film layer where the shielding unit 170a is located.

[0028] The present application covers the two side walls of the gate electrode 111 by setting the first and second shielding electrodes 171 and 172 to shield the influence of the electric field generated by the gate electrode 111 on liquid crystal molecules, eliminating the technical problem of light leakage at the edge of the gate electrode 111, reducing the brightness of the display panel 100 in dark state, and improving the contrast of the display panel 100.

[0029] It should be noted that the scan lines Scan extend along a first direction X, the data lines Data extend along a second direction Y, and the angle between the first direction X and the second direction Y of the present application can be greater than 0 degrees and less than or equal to 90 degrees, for example, the horizontal direction as the first direction X, and the vertical direction as the second direction Y, the angle between the first direction X and the second direction Y can be 90 degrees.

[0030] It should be noted that the material of the pixel electrode PE and the shielding unit 170a is a transparent conductive material, for example, indium tin oxide.

[0031] Referring to FIG. 2, the display panel 100 can include a first substrate 10 and a second substrate 20, which are oppositely arranged. A liquid crystal layer LC is further arranged between the first substrate 10 and the second substrate 20. The first substrate 10 can be a conventional first substrate 10 or a COA (Color filter On Array) substrate. In the following embodiments, the first substrate 10 is taken as an example of the COA substrate.

[0032] Referring to FIG. 2, the first substrate 10 can include a first substrate 101 and an array layer on the first substrate 101. The material of the first substrate 101 can be a rigid substrate, for example, a glass, quartz or other rigid material. Alternatively, the material of the first substrate 101 can be a flexible substrate, for example, a polyimide or other flexible material.

[0033] In the embodiment, the array layer can include a plurality of thin film transistors. The thin film transistors can be etch-stop type, back channel etch type, or divided into bottom-gate thin film transistors, top-gate thin film transistors and other structures according to the position of the gate 111 and the active layer 130. For example, referring to FIG. 2, the thin film transistor of the bottom-gate thin film transistor type can include a first conductive layer 110 on the first substrate 101, a gate insulating layer 120 on the first conductive layer 110, an active layer 130 on the gate insulating layer 120, a second conductive layer 140 on the active layer 130, a passivation layer 150 on the second conductive layer 140, a color resistance layer 160 on the passivation layer 150, a shielding layer 170 on the color resistance layer 160, a planarization layer 180 on the shielding layer 170, and a pixel electrode layer 190 on the planarization layer 180.

[0034] In the embodiment, the material of the active layer 130 can be a metal oxide semiconductor or a silicon semiconductor. For example, the metal oxide semiconductor can be IGZO, IGTO, Ln-IZO, ITZO, ITGZO, HIZO, IZO (InZnO), ZnO:F, In2O3:Sn, In2O3:Mo, Cd2SnO4, ZnO:Al, TiO2:Nb, Cd-Sn-O or other metal oxides.

[0035] In the embodiment, the material of the gate insulating layer 120 and the passivation layer 150 can include a compound composed of nitrogen, silicon and oxygen, for example, a single layer of silicon oxide, a silicon oxide film layer, or a laminated structure of silicon oxide, silicon nitride, aluminum oxide and the like.

[0036] In the embodiment, the material of the flat layer 180 includes a flexible material such as polytetrafluoroethylene.

[0037] Referring to FIG. 2, the second substrate 20 can include a second substrate 201 and a common electrode layer 202 located on the second substrate 201, and a driving electric field formed between the common electrode layer 202 and the pixel electrode layer 190 is used to drive the liquid crystal to deflect.

[0038] Referring to FIG. 2, the display panel 100 can further include a plurality of spacers PS arranged between the first substrate 10 and the second substrate 20, and the spacers PS can be arranged in the region of the thin film transistor in the sub-pixel unit PL.

[0039] Referring to FIG. 1, the sub-pixel unit PL includes a light-transmitting region PL1 and a non-light-transmitting region PL2, the thin film transistor in the sub-pixel unit PL is arranged in the light-transmitting region PL1, and the pixel electrode PE is located in the light-transmitting region PL1; the non-light-transmitting region PL2 further includes a light shielding unit BM, and the light shielding unit BM can be arranged on the first substrate 10 or the second substrate 20, which is not limited in the present application.

[0040] The technical solutions of the present application will be described below by taking the structure of a sub-pixel unit PL as an example.

[0041] In the embodiment, since the arrangement of the shielding electrode will affect the electrical properties of the thin film transistor, the shielding electrode in the region of the thin film transistor will be removed, resulting in that part of the edges of the gate 111 are not shielded by the shielding electrode, and the electric field generated by the gate 111 can drive the liquid crystal molecules to deflect, thereby causing light leakage; meanwhile, if the light shielding unit BM is arranged on the second substrate 20, when the first substrate 10 and the second substrate 20 are aligned, the light shielding unit BM can be offset, so that the light shielding unit BM cannot shield the edge of the gate 111 away from the pixel electrode PE, thereby causing the technical problem of light leakage in the region of the gate 111.

[0042] Referring to FIG. 3 and FIG. 4, FIG. 3 is a structural diagram of a sub-pixel unit PL in the display panel 100 of the present application, and FIG. 4 is a structural diagram of the first conductive layer 110 in FIG. 3. The first conductive layer 110 can include a plurality of gates 111, a plurality of scan lines Scan, and a plurality of common electrodes 112, and one gate 111 is arranged in a sub-pixel unit PL, and the gate 111 is connected with the corresponding scan line Scan.

[0043] In the embodiment, the material of the first conductive layer 110 can include Cr, W, Ti, Ta, Mo, Al, Cu or other metal, or a single-layer or multi-layer metal structure composed of at least two of the above-mentioned metals; for example, the material of the first conductive layer 110 can be Mo, Mo / Al, Mo / Cu, MoTi / Cu, MoTi / Cu / MoTi, Ti / Al / Ti, Ti / Cu / Ti, Mo / Cu / IZO, IZO / Cu / IZO, Mo / Cu / ITO, etc.

[0044] Referring to FIGS. 3 and 4, the scan line Scan includes a first sub-line 113a connected to the side of the gate 111 away from the pixel electrode PE, and the first shield electrode 171 and the second shield electrode 172 both cover part of the first sub-line 113a.

[0045] In the embodiment, the first side wall 111a and the second side wall 111b of the gate 111 are both arranged at an angle to the first sub-line 113a; for example, when the gate 111 is a regular rectangle, the angle between the first side wall 111a and the second side wall 111b and the first sub-line 113a is 90 degrees.

[0046] In the embodiment, when the process of the light shielding unit BM is offset towards the end close to the pixel electrode PE, the light shielding unit BM will not be able to shield the corner region of the gate 111 and the first sub-line 113a; the present application makes the first shield electrode 171 and the second shield electrode 172 both cover part of the first sub-line 113a, and the first shield electrode 171 and the second shield electrode 172 extend towards the end close to the pixel electrode PE, so that the first shield electrode 171 covers at least part of the first side wall 111a and the second shield electrode 172 covers at least part of the second side wall 111b; therefore, even if the light shielding unit BM is offset towards the end close to the pixel electrode PE, the first shield electrode 171 and the second shield electrode 172 can shield the electric field generated by the gate 111 in the corresponding region, eliminating the technical problem of light leakage at the edge of the gate 111.

[0047] Referring to FIGS. 3 and 4, the scan line Scan also includes a second sub-line 113b arranged in parallel with the first sub-line 113a, and the second sub-line 113b is connected to the side of the gate 111 close to the pixel electrode PE.

[0048] In the embodiment, the scan line Scan has a large impedance due to the fact that the scan line Scan extends along the first direction X and has a long length, which results in a difference in the voltage signals transmitted by the scan line Scan in different regions. The second sub-line 113b is arranged in parallel with the first sub-line 113a, which reduces the impedance of the scan line Scan and improves the problem of the difference in the voltage signals transmitted by the scan line Scan in different regions. Meanwhile, the arrangement of the first sub-line 113a and the second sub-line 113b can avoid the problem of abnormal scanning transmission caused by the disconnection of one of the sub-lines.

[0049] Referring to FIGS. 3 and 4, the first shielding electrode 171 overlaps the second sub-line 113b and extends away from one end of the second sub-line 113b, and the second shielding electrode 172 is arranged apart from the second sub-line 113b.

[0050] In the embodiment, the first shielding electrode 171 and the second shielding electrode 172 transmit a constant voltage, and thus a large overlapping area between the shielding electrode and the gate 111 will affect the on voltage on the gate 111. Therefore, the second shielding electrode 172 is arranged apart from the second sub-line 113b. In addition, the shielding unit 170a further includes a third shielding electrode 173 arranged in the light-transmitting region PL1, and in order to form a mesh structure for the shielding unit 170a in different sub-pixel units PL, the first shielding electrode 171 overlaps the second sub-line 113b and extends away from one end of the second sub-line 113b, and the first shielding electrode 171 is connected to the third shielding electrode 173.

[0051] Referring to FIGS. 3 and 4, the first conductive layer 110 further includes a common electrode 112 arranged between the pixel electrode PE and the gate 111. The common electrode 112 includes a common body 112a and common connection lines 112b arranged on both sides of the common body 112a. The common connection lines 112b extend along the first direction X, and the common connection lines 112b in adjacent two sub-pixel units PL are connected.

[0052] Referring to FIG. 3, a large overlapping area between the shielding electrode and the gate 111 will affect the on voltage on the gate 111. Therefore, in the extension direction of the scan line Scan, the width L1 of the overlapping part of the first shielding electrode 171 and the gate 111 is less than or equal to 2 microns, and the width L2 of the overlapping part of the second shielding electrode 172 and the gate 111 is less than or equal to 2 microns.

[0053] Referring to FIG. 3 and FIG. 5, the second conductive layer 140 includes a plurality of source electrodes 141, a plurality of drain electrodes 142, and a plurality of data lines Data, one sub-pixel unit PL is provided with one source electrode 141 and one drain electrode 142, the orthographic projection of the drain electrode 142 on the first conductive layer 110 is located in the gate electrode 111, the drain electrode 142 is in a U shape, and the source electrode 141 extends into the U-shaped structure of the drain electrode 142.

[0054] In the embodiment, the material of the second conductive layer 140 can include Cr, W, Ti, Ta, Mo, Al, Cu, or a single-layer or multi-layer metal structure composed of at least two of the above-mentioned metals; for example, the material of the second conductive layer 140 can be Mo, Mo / Al, Mo / Cu, MoTi / Cu, MoTi / Cu / MoTi, Ti / Al / Ti, Ti / Cu / Ti, Mo / Cu / IZO, IZO / Cu / IZO, Mo / Cu / ITO, etc.

[0055] Referring to FIG. 5, the second conductive layer 140 further includes a first electrical connection segment 143 connected to the drain electrode 142, the other end of the first electrical connection segment 143 is connected to the corresponding data line Data; at the same time, the second shielding electrode 172 overlaps the first electrical connection segment 143 and extends away from one end of the first electrical connection segment 143.

[0056] In the embodiment, due to the offset of the light shielding unit BM, the light shielding unit BM cannot shield the edge of the gate electrode 111 away from one end of the pixel electrode PE, so the length of the second shielding electrode 172 in the second direction Y cannot be too small; the application makes the second shielding electrode 172 overlap the first electrical connection segment 143 and extend away from one end of the first electrical connection segment 143, that is, the second shielding electrode 172 is at least longer than the first electrical connection segment 143 away from one end of the first sub-line 113a, thereby avoiding the technical problem of light leakage in this area of the gate electrode 111.

[0057] Referring to FIG. 5, the second conductive layer 140 further includes a storage electrode 144 connected to the source electrode 141, the storage electrode 144 is arranged between the source electrode 141 and the pixel electrode PE, the storage electrode 144 is opposite to and at least partially overlaps the common body 112a, and the storage electrode 144 and the common body 112a form a storage capacitor.

[0058] Please refer to FIG. 6, which is a structural diagram of the active layer 130 in FIG. 3. The active layer 130 includes an active part 131 and an isolation part 132. The active part 131 is located in the gate 111 in a normal projection on a film layer where the gate 111 is located. The isolation part 132 is located on the same film layer surface as the active part 131, for example, the isolation part 132 and the active part 131 are both located on the side of the gate insulating layer 120 away from the first substrate 101, and the isolation part 132 and the active part 131 are formed in the same mask process.

[0059] Please refer to FIG. 3. The data line Data includes an overlapping part 145 overlapping with the scan line Scan, and the isolation part 132 is located between the overlapping part 145 and the corresponding scan line Scan. For example, the data line Data overlaps with the first sub-line 113a and the second sub-line 113b, and the isolation part 132 can be arranged between the data line Data and the first sub-line 113a and between the data line Data and the second sub-line 113b.

[0060] In this embodiment, since the data line Data and the scan line Scan form a coupling capacitor at the overlapping position, which affects the voltage signals transmitted by the data line Data and the scan line Scan, the isolation part 132 is arranged at the overlapping position of the data line Data and the scan line Scan to increase the distance between the scan line Scan and the data line Data at the overlapping position, thereby reducing the coupling capacitor between the scan line Scan and the data line Data. At the same time, the increase of the distance between the scan line Scan and the data line Data at the overlapping position also avoids the risk of short circuit between the data line Data and the scan line Scan at the overlapping position.

[0061] In this embodiment, the normal projection of the overlapping part 145 on the active layer 130 is located in the corresponding isolation part 132, and the area of the isolation part 132 is greater than the area of the overlapping part 145.

[0062] Please refer to FIG. 6. The two end parts of the active part 131 close to the first sub-line 113a are provided with chamfers, that is, the active part 131 can be a special-shaped structure with two chamfers. Please refer to FIG. 4. The shielding unit 170a further includes a first protrusion 171a arranged on the first shielding electrode 171 and a second protrusion 172a arranged on the second shielding electrode 172. The first protrusion 171a extends to the area where the second shielding electrode 172 is located and is arranged at a distance from one chamfer of the active part 131. The second protrusion 172a extends to the area where the first shielding electrode 171 is located and is arranged at a distance from the other chamfer of the active part 131.

[0063] In the embodiment, the active part 131 is reduced in area by the chamfer, and the area with the chamfer is provided with the gate 111. In order to avoid the problem of light leakage caused by the electric field generated by the gate 111 driving the liquid crystal molecules to deflect, the area with the chamfer is provided with the corresponding first protrusion 171a and second protrusion 172a, and the technical problem of light leakage at the edge of the gate 111 is further improved.

[0064] Referring to FIG. 7, which is a first structure diagram of the shielding layer 170 in FIG. 3, the shielding unit 170a further includes a third shielding electrode 173 corresponding to the pixel electrode PE, the first shielding electrode 171 extends to the third shielding electrode 173 and is connected to the third shielding electrode 173.

[0065] In the embodiment, the third shielding electrode 173 is arranged corresponding to and at least partially overlapping the pixel electrode PE, and a storage capacitor is formed between the third shielding electrode 173 and the pixel electrode PE to improve the device effect of the thin film transistor.

[0066] Referring to FIG. 8, which is a structure diagram of two adjacent shielding units 170a, in each of the two adjacent sub-pixel units PL in the second direction Y, one shielding unit 170a is arranged in each of the two adjacent sub-pixel units PL, and in the two adjacent shielding units 170a in the extension direction of the data line Data, the first shielding electrode 171 and the second shielding electrode 172 in one shielding unit 170a are connected to the third shielding electrode 173 in the other shielding unit 170a. The application allows the plurality of shielding units 170a in the second direction Y to be electrically connected to each other, simplifying the wiring design of the shielding unit 170a, and eliminating the need to transmit voltage signals to each shielding unit 170a.

[0067] Based on FIG. 8, in the two adjacent shielding units 170a in the extension direction of the scan line Scan, the third shielding electrode 173 in one shielding unit 170a is connected to the third shielding electrode 173 in the other shielding unit 170a. That is, the application connects the plurality of shielding units 170a arranged in the first direction X and the second direction Y to each other to form a mesh structure, thereby reducing the impedance of the shielding layer 170.

[0068] Referring to FIGS. 7 and 8, the third shielding electrode 173 includes a first sub-part 173a and a second sub-part 173b, the first sub-part 173a is arranged close to the gate 111, the second sub-part 173b is arranged away from the gate 111, and the width of the first sub-part 173a is greater than the width of the second sub-part 173b.

[0069] In the embodiment, since the scan line Scan may be short-circuited with the data line Data at some positions, it is usually necessary to cut the abnormal area of the scan line Scan by laser, and if the scan line Scan and the shielding unit 170a overlap at the abnormal area, the scan line Scan and the shielding unit 170a will be short-circuited when cutting. Therefore, the width of the second sub-part 173b is less than the width of the first sub-part 173a, and a gap is arranged on the side of the third shielding electrode 173 close to the scan line Scan, so that the third shielding electrode 173 avoids the position where the scan line Scan and the data line Data overlap, and the technical problem of short-circuiting between the scan line Scan and the shielding unit 170a when cutting the scan line Scan by laser is avoided.

[0070] Referring to FIG. 8, the first shielding electrode 171 and the second shielding electrode 172 in a shielding unit 170a are connected with the second sub-part 173b in another shielding unit 170a, and the side wall close to the same data line Data of the first shielding electrode 171 and the second sub-part 173b is located in the same plane, and the side wall close to the same data line Data of the second shielding electrode 172 and the second sub-part 173b is located in the same plane.

[0071] Referring to FIG. 8, since the width of the first sub-part 173a is greater than the width of the second sub-part 173b, in the two adjacent shielding units 170a in the extension direction of the scan line Scan, the first sub-part 173a in a shielding unit 170a is connected with the first sub-part 173a in another shielding unit 170a, and the first sub-part 173a has an overlapping part with the two adjacent data lines Data, and the second sub-part 173b is arranged without overlapping the two adjacent data lines Data.

[0072] It should be noted that the shielding unit 170a of the present application is connected with the constant voltage source through the connecting hole arranged in the non-display area of the display panel 100, so as to transmit the constant voltage transmitted by the constant voltage source to the plurality of shielding units 170a in the display area of the display panel 100.

[0073] Referring to FIG. 9, FIG. 9 is a structural diagram of the pixel electrode layer 190 in FIG. 3. The pixel electrode layer 190 includes the pixel electrode PE and the second electrical connection segment 191 connected with the pixel electrode PE, the second electrical connection segment 191 extends from the pixel electrode PE to the storage electrode 144, and the second electrical connection segment 191 is electrically connected with the storage electrode 144 through the via hole.

[0074] In the embodiment, the pixel electrode PE can include a trunk electrode and a plurality of branch electrodes connected with the trunk electrode, for example, the trunk electrode can include a horizontal electrode extending along the first direction X and a vertical electrode extending along the second direction Y, and the horizontal electrode and the vertical electrode divide the plurality of branch electrodes into four sub-zones.

[0075] Referring to FIG. 10, FIG. 10 is a second structure diagram of the shielding layer 170 in FIG. 3. The third shielding electrode 173 is provided with an opening 173c corresponding to the branch electrode; for example, the third shielding electrode 173 is provided with four openings 173c, and each opening 173c corresponds to the branch electrode in one sub-area of the pixel electrode PE.

[0076] The application further provides a display device, which comprises the display panel. The display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, etc.

[0077] In the above embodiments, the description of each embodiment has its own focus, and the part not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0078] The technical solutions provided by the embodiments of the application are described in detail above, and the principle and implementation manner of the application are described by applying specific examples; the above embodiment is only used to help understand the technical solutions of the application and the core idea thereof; those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced equivalently; and the modification or replacement does not make the essence of the corresponding technical solution deviate from the scope of the technical solutions of the embodiments of the application.

Claims

1. A display panel, wherein, The display panel comprises a plurality of scan lines and a plurality of data lines, and the plurality of scan lines and the plurality of data lines enclose a plurality of sub-pixel units. The gate electrode comprises opposite first and second side walls, and each gate electrode is arranged between two corresponding data lines, the first side wall is arranged adjacent to one of the data lines, and the second side wall is arranged adjacent to the other data line. The pixel electrode is arranged between two corresponding data lines, and the pixel electrode is arranged separately from the gate electrode. The shielding unit comprises a first shielding electrode and a second shielding electrode arranged separately, and the first shielding electrode and the second shielding electrode extend from one end of the gate electrode away from the pixel electrode to the pixel electrode. At least part of the first side wall is projected onto the first shielding electrode on the film layer where the shielding unit is located, and at least part of the second side wall is projected onto the second shielding electrode on the film layer where the shielding unit is located.

2. The display panel of claim 1, wherein, The scan line comprises a first sub-line connected to one side of the gate electrode away from the pixel electrode. The first shielding electrode and the second shielding electrode both cover part of the first sub-line.

3. The display panel of claim 2, wherein, The scan line further comprises a second sub-line arranged in parallel with the first sub-line, and the second sub-line is connected to one side of the gate electrode close to the pixel electrode.

4. The display panel of claim 3, the first shielding electrode overlaps the second sub-line and extends away from one end of the second sub-line, and the second shielding electrode is arranged separately from the second sub-line.

5. The display panel of claim 4, wherein, The sub-pixel unit further comprises: an active part, the active part is projected onto the gate electrode on the film layer where the gate electrode is located; an isolation part arranged on the surface of the same film layer as the active part; The data line comprises an overlapping part overlapping the scan line, and the isolation part is arranged between the overlapping part and the corresponding scan line.

6. The display panel of claim 5, wherein, The overlapping part is projected onto the corresponding isolation part on the active layer, and the area of the isolation part is greater than the area of the overlapping part.

7. The display panel of claim 5, wherein, The sub-pixel unit further comprises a drain electrode and a first electrical connection segment, one end of the first electrical connection segment is connected to the drain electrode, the other end of the first electrical connection segment is connected to the corresponding data line, and the drain electrode is projected onto the active part on the active part. The second shielding electrode overlaps the first electrical connection segment and extends away from one end of the electrical connection segment.

8. The display panel of claim 7, wherein, The sub-pixel unit further comprises a common electrode arranged between the pixel electrode and the gate electrode, the common electrode comprises a common main body and common connection lines arranged on both sides of the common main body, the common connection lines extend along the extension direction of the scan line, and the common connection lines in adjacent two sub-pixel units are connected.

9. The display panel of claim 8, wherein, The sub-pixel unit further comprises a storage electrode connected to the source electrode, the storage electrode is arranged between the source electrode and the pixel electrode, the storage electrode is arranged opposite to and at least partially overlaps the common main body.

10. The display panel of claim 5, wherein, The two end portions of the active part close to the first sub-line are provided with chamfers. The shielding unit further comprises a first protrusion on the first shielding electrode and a second protrusion on the second shielding electrode, the first protrusion extends to the area where the second shielding electrode is located and is arranged apart from one chamfer of the active part, and the second protrusion extends to the area where the first shielding electrode is located and is arranged apart from another chamfer of the active part.

11. The display panel of claim 1, wherein, In the extension direction of the scan line, the width of the overlapping part of the first shielding electrode and the gate electrode is less than or equal to 2 microns, and the width of the overlapping part of the second shielding electrode and the gate electrode is less than or equal to 2 microns.

12. The display panel of any one of claims 1 to 11, wherein, The shielding unit further comprises a third shielding electrode corresponding to the pixel electrode, the first shielding electrode extends to the third shielding electrode and is connected with the third shielding electrode.

13. The display panel of claim 12, wherein, In the extension direction of the data line, the first shielding electrode and the second shielding electrode in one shielding unit are connected with the third shielding electrode in another shielding unit.

14. The display panel of claim 12, wherein, In the extension direction of the scan line, the third shielding electrode in one shielding unit is connected with the third shielding electrode in another shielding unit.

15. The display panel of claim 12, wherein, The third shielding electrode comprises a first sub-part and a second sub-part, the first sub-part is arranged close to the gate electrode, and the second sub-part is arranged away from the gate electrode, the width of the first sub-part is greater than the width of the second sub-part.

16. The display panel of claim 15, wherein, The first sub-part has an overlapping part with two adjacent data lines, and the second sub-part is arranged non-overlappingly with the two adjacent data lines.

17. The display panel of claim 15, wherein, In the extension direction of the scan line, the first sub-part in one shielding unit is connected with the first sub-part in another shielding unit.

18. The display panel of claim 12, wherein, The pixel electrode comprises a trunk electrode and a plurality of branch electrodes connected with the trunk electrode. The third shielding electrode is provided with an opening corresponding to part of the branch electrodes.

19. The display panel of any one of claims 1 to 11, wherein, The pixel electrode and the shielding unit are made of transparent conductive material.

20. A display device comprising: The display device comprises the display panel according to any one of claims 1 to 19.

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