Display panel and display terminal

Abstract

Disclosed in the present application are a display panel and a display terminal. The display panel comprises a first substrate, an auxiliary electrode and a pixel electrode, wherein the auxiliary electrode is arranged on the first substrate, and the auxiliary electrode comprises a first electrode; the pixel electrode is arranged on the side of the auxiliary electrode that is away from the first substrate, and the pixel electrode comprises branch electrodes and a slit located between every two adjacent branch electrodes; and the orthographic projections of at least some slits on the first electrode are located within the first electrode, and the first electrode is electrically connected to the pixel electrode.

Description

Display panel and display terminal Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display terminal. Background Art

[0002] With the continuous development of liquid crystal display panels, wide viewing angles and low energy consumption have become important performance indicators for measuring product advancement. To achieve low energy consumption of display panels, one can start by improving the light transmittance of the display panels.

[0003] Since a variety of opaque wiring and electrodes must be provided in the pixel structure, it is difficult to increase the aperture ratio. Therefore, how to improve the transmittance of the display panel is one of the technical problems that technicians in this field urgently need to solve.

[0004] Summary of the Invention

[0005] The present application provides a display panel and a display terminal to improve the light transmittance of the display panel.

[0006] To solve the above technical problems, the technical solutions provided by this application are as follows:

[0007] The present application provides a display panel, comprising:

[0008] a first substrate;

[0009] An auxiliary electrode is provided on the first substrate, and the auxiliary electrode includes the first electrode;

[0010] a pixel electrode, disposed on a side of the auxiliary electrode away from the first substrate, the pixel electrode comprising branch electrodes and a slit between two adjacent branch electrodes;

[0011] The orthographic projection of at least part of the slit on the first electrode is located inside the first electrode, and the first electrode is electrically connected to the pixel electrode.

[0012] The present application further provides a display terminal, the display terminal including a display panel, the display panel including:

[0013] a first substrate;

[0014] An auxiliary electrode is provided on the first substrate, and the auxiliary electrode includes the first electrode;

[0015] a pixel electrode, disposed on a side of the auxiliary electrode away from the first substrate, the pixel electrode comprising branch electrodes and a slit between two adjacent branch electrodes;

[0016] The orthographic projection of at least part of the slit on the first electrode is located inside the first electrode, and the first electrode is electrically connected to the pixel electrode. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] FIG1 is a schematic diagram of a top view of a display panel of the present application;

[0018] FIG2 is a schematic diagram of a cross-sectional structure of a sub-pixel region of the display panel in FIG1 ;

[0019] FIG3 is a schematic diagram of a partially enlarged structure of a sub-pixel of the display panel in FIG1 ;

[0020] FIG4 is an exploded view of part of the film layers of the sub-pixel in FIG3 ;

[0021] FIG5 is a schematic diagram of the cross-sectional structure at CC in FIG3 ;

[0022] FIG6 is a schematic diagram of the cross-sectional structure at DD in FIG3 ;

[0023] FIG7 is a schematic diagram illustrating the relationship between the longitudinal electric field strength and the width of the slit of the display panel of the present application;

[0024] FIG8 shows the light transmittance improvement data of the display panel of the present application. Modes for Carrying Out the Invention

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application. In addition, it should be understood that the specific implementation methods described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, the directional words used, such as "upper" and "lower", generally refer to the upper and lower parts of the device in actual use or working state, specifically the drawing direction in the accompanying drawings; and "inside" and "outside" refer to the outline of the device.

[0026] The present application provides a display panel, as shown in Figures 1 to 4, the display panel includes a first substrate 10, an auxiliary electrode 11, and a pixel electrode 12. The auxiliary electrode 11 is arranged on the first substrate 10, and the auxiliary electrode 11 includes a first electrode 111; the pixel electrode 12 is arranged on a side of the auxiliary electrode 11 away from the first substrate 10, and the pixel electrode 12 includes a branch electrode 123 and a slit 124 located between two adjacent branch electrodes 123; wherein, at least part of the slit 124 is located within the first electrode 111 as an orthographic projection of the first electrode 111, and the first electrode 111 is electrically connected to the pixel electrode 12.

[0027] In the present application, an auxiliary electrode 11 is provided on a side of the pixel electrode 12 close to the first substrate 10. The pixel electrode 12 includes a branch electrode 123 and a slit 124 located between two adjacent branch electrodes 123. The orthographic projection of the slit 124 on the auxiliary electrode 11 is located within the first electrode 111, and the first electrode 111 is electrically connected to the pixel electrode 12. The first electrode 111 can provide the same voltage as the pixel electrode 12. The first electrode 111 can enhance the electric field strength at the slit 124, thereby improving the liquid crystal efficiency. The improved liquid crystal efficiency can increase the transmittance of the display panel.

[0028] In this application, the display panel is a liquid crystal display panel. Referring to Figure 1 , which is a schematic top view of a display panel of this application, the display panel includes a display area AA and a non-display area NA located outside the display area AA. The display area AA is provided with a plurality of sub-pixels 50 . Sub-pixels 50 may be, but are not limited to, red, green, or blue sub-pixels. Sub-pixels 50 of different colors can emit different colors of light, thereby displaying an image.

[0029] The non-display area NA of the display panel is provided with a binding portion 60 for electrically connecting to external components to input external signals to the display panel. The external components may be, but are not limited to, a driver chip, a flexible circuit board, or a chip-on-film.

[0030] As shown in Figure 2, Figure 2 is a schematic cross-sectional structure diagram of the sub-pixel 50 region of the display panel in Figure 1. It should be noted that Figure 2 is only used to illustrate the stacking order of the various film layers of the display panel, and does not show the actual size and projection relationship of the various film layers.

[0031] The display panel includes a first substrate 10 and a second substrate 20 facing each other, with a liquid crystal layer 30 sandwiched between the first substrate 10 and the second substrate 20. It should be noted that the display panel also includes a backlight module (not shown) disposed on the side of the first substrate 10 away from the second substrate 20. The backlight module is used to provide a white light source.

[0032] A pixel electrode 12 is provided on the first substrate 10, and a fourth electrode 21 is provided on the second substrate 20. The liquid crystal in the liquid crystal layer 30 can be deflected in the electric field formed by the pixel electrode 12 and the fourth electrode 21. Since the deflection angle of the liquid crystal in different electric fields is different, and when the deflection angle of the liquid crystal is different, its ability to transmit light is different. By controlling the electric field intensity, the transmittance (i.e., light transmittance) of the light emitted from the backlight can be controlled, thereby achieving brightness control of the picture. The fourth electrode 21 can be a common electrode, and the fourth electrode 21 provides the same common voltage for multiple sub-pixels 50.

[0033] It should be understood that the display panel also includes a color filter layer (not shown in the figure), which can be provided on the first substrate 10 or the second substrate 20. The color filter layer may include red, green, and blue color resistors, and different color resistors can allow light of corresponding colors to pass through. For example, the red color resistor allows red light to pass through, the green color resistor allows green light to pass through, and the blue color resistor allows blue light to pass through. The color filter layer can filter the white light emitted by the backlight into light of the corresponding color, thereby achieving color display.

[0034] Please refer to Figures 2 and 3. Figure 3 is a schematic diagram of the locally enlarged structure of the sub-pixel 50 of the display panel in Figure 1. The display panel also includes a plurality of thin film transistors 40. The thin film transistor 40 includes a gate 43, a source 41 and a drain 42. The drain 42 is electrically connected to the pixel electrode 12 for providing a driving signal to the pixel electrode 12.

[0035] The display panel includes an auxiliary electrode 11 disposed on a first substrate 10 and a pixel electrode 12 disposed on the auxiliary electrode 11. The pixel electrode 12 includes branch electrodes 123 and slits 124 located between two adjacent branch electrodes 123. The orthographic projections of some of the slits 124 on the first electrode 111 are located within the first electrode 111, and the first electrode 111 is electrically connected to the pixel electrode 12. Through this configuration, the first electrode 111 can enhance the electric field strength at the slits 124, improve the efficiency of the liquid crystal, and thus improve the light transmittance of the display panel.

[0036] The display panel includes data lines 13 and scan lines 14 extending across each other. The data lines 13 and the scan lines 14 define sub-pixels 50 .

[0037] In this embodiment, the width S of the slit 124 can be set according to actual needs. The larger the width S of the slit 124, the more significant the effect of the second electrode 112 on improving the transmittance of the display panel. As shown in Figure 4, the width S of the slit 124 refers to the distance between two adjacent branch electrodes 123. Specifically, as shown in Figure 7, when the width S of the slit 124 increases, the transverse electric field strength parallel to the display surface decreases, while the longitudinal electric field strength perpendicular to the display surface increases, improving liquid crystal efficiency and facilitating an increase in the ratio of the width of the pixel branch to the width S of the slit 124. For example, when the width S of the slit 124 is S1, the strength of its longitudinal electric field is represented by one vertical electric field line; when the width S of the slit 124 is S2, the strength of its longitudinal electric field is represented by three vertical electric field lines. The electric field strength is positively correlated with the number of electric field lines. Therefore, when the width S of the slit 124 increases, the strength of the longitudinal electric field increases.

[0038] Among them, the width of the pixel branch refers to the size of the short side of the pixel branch. The short side of the pixel branch is a side perpendicular to the extension direction of the pixel branch. As shown in Figure 8, Figure 8 is the transmittance improvement data of the display panel of the present application. Figure 8 shows the transmittance improvement data of 6 display panels A to F. For example, for display panel B, the width S of the slit 124 is 1.6 microns, and the thickness of the liquid crystal layer 30 (cell gap) is 3.2 microns. Compared with the display panel without the second electrode 112, the transmittance of the display panel in this embodiment can be improved by 21.06%.

[0039] The technical solution of this application is now described in conjunction with specific embodiments.

[0040] In the display panel of the present application, as shown in Figures 1, 3, and 4, Figure 4 is an exploded view of a portion of the film layers of the sub-pixel 50 in Figure 3. In Figure 4, (a) is the film layer structure where the scan line 14 corresponding to a sub-pixel 50 is located, (b) is the film layer structure where the data line 13 corresponding to a sub-pixel 50 is located, (c) is the film layer structure where the auxiliary electrode 11 corresponding to a sub-pixel 50 is located, and (d) is the film layer structure where the pixel electrode 12 corresponding to a sub-pixel 50 is located. It can be understood that an insulating layer 70 is provided between each of the film layers (a), (b), (c), and (d). The insulating layer 70 is a continuous film layer used to insulate two adjacent metal layers.

[0041] In the display panel of the present application, as shown in Figure 3, the display panel includes multiple light-transmitting areas A1 and a non-light-transmitting area A2 located between two adjacent light-transmitting areas A1. The auxiliary electrode 11 includes a first electrode 111 and a second electrode 112 that are separately arranged. The first electrode 111 is located in the light-transmitting area A1 and is electrically connected to the pixel electrode 12. The second electrode 112 includes a first sub-portion 1122 located in the non-light-transmitting area A2.

[0042] In this embodiment, the light-transmitting area A1 is light-permeable, while the light-impermeable area A2 is light-impermeable. The display area AA of the display panel is composed of the light-transmitting area A1 and the light-impermeable area A2. Various signal lines are provided within the light-impermeable area A2, which are used to provide drive signals, etc., to the sub-pixels 50. For example, the signal lines may include, but are not limited to, data lines 13, scan lines 14, and common electrodes. Various capacitors, transistors, and other components are also provided within the light-impermeable area A2 to meet the needs of the sub-pixels 50.

[0043] It is understood that the material of the pixel electrode 12 and the auxiliary electrode 11 is a transparent conductive material so as not to block the transmission of light. The material of the pixel electrode 12 and the auxiliary electrode 11 can be ITO (indium tin oxide), IZO (indium zinc oxide), IZTO (indium zinc tin oxide), IAZO (indium aluminum zinc oxide), IGZO (indium gallium zinc oxide), IGTO (indium gallium tin oxide), AZO (aluminum zinc oxide), ATO (antimony tin oxide), IGZTO (indium gallium zinc tin oxide), etc., but is not limited thereto.

[0044] The signal line in the non-light-transmitting area A2 is made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd) and copper (Cu) or their alloys, but is not limited thereto.

[0045] Furthermore, in order to prevent light from passing through the non-transparent area A2 and affecting the purity of the display color of the display panel, a black matrix can be set in the non-transparent area A2. The orthographic projection of the black matrix on the first substrate 10 coincides with the orthographic projection of the non-transparent area A2 on the first substrate 10. The black matrix can block light, prevent light leakage from the sub-pixel 50, and improve the display effect.

[0046] In this embodiment, the first electrode 111 is located in the middle region of the light-transmitting area A1, and the first electrode 111 is spaced from the boundary of the light-transmitting area A1. The shape of the first electrode 111 can be rectangular, elliptical, etc., but is not limited thereto. The shape of the first electrode 111 can be adaptively set according to the shape of the pixel electrode 12. In other words, the outline of the first electrode 111 can be roughly the same as the outline of the light-transmitting area A1, and the area enclosed by the outline of one first electrode 111 is smaller than the area of ​​the light-transmitting area A1 of one sub-pixel 50.

[0047] Furthermore, the second electrode 112 further includes a second sub-portion 1123 disposed in the light-transmitting area A1 , and the first sub-portion 1122 and the second sub-portion 1123 are connected to each other.

[0048] It should be noted that the middle region of the light-transmitting area A1 corresponds to the edge region of the light-transmitting area A1. Because the edge region of the light-transmitting area A1 is adjacent to the non-light-transmitting area A2, the liquid crystal in the edge region is easily affected by the coupling between the signal line in the non-light-transmitting area A2 and the pixel electrode 12, and cannot be deflected at the preset angle, thereby affecting the display effect of the display panel. By providing the second sub-portion 1123 in the light-transmitting area A1, the second electrode 112 can shield the coupling between the signal line in the non-light-transmitting area A2 and the pixel electrode 12. On this basis, the boundary of the pixel electrode 12 can be extended toward the non-light-transmitting area A2, thereby increasing the aperture area of ​​the pixel electrode 12 and improving the aperture ratio.

[0049] In this embodiment, as shown in FIG4 , the first electrode 111 and the second electrode 112 are arranged in the same layer and spaced apart, that is, a gap is formed between the first electrode 111 and the second electrode 112. The width of the orthographic projection of the gap on the first substrate 10 can be 5 microns to 10 microns, but is not limited thereto, as long as the first electrode 111 and the second electrode 112 are not connected. When the gap is small, the area enclosed by the outline of the first electrode 111 is larger, which can better improve the liquid crystal efficiency of the area corresponding to the first electrode 111, thereby improving the transmittance of the display panel. In some embodiments, the gap can surround the periphery of the first electrode 111 for nearly a circle, thereby separating the first electrode 111 from the second electrode 112.

[0050] The boundary line between the second sub-section 1123 and the first sub-section 1122 at least partially overlaps with the boundary line between the light-transmitting area A1 and the non-light-transmitting area A2, and the boundary between the second sub-section 1123 and the first electrode 111 can correspond to the outline of the first electrode 111. That is to say, the width of the gap between the second electrode 112 and the first electrode 111 can be uniformly set, but is not limited to this.

[0051] In this embodiment, the first electrode 111 may be a whole film layer, that is, the first electrode 111 is not provided with a pattern. The first electrode 111 may also be a film layer provided with a hollow pattern. This application does not impose any restrictions on this.

[0052] In the display panel of the present application, as shown in Figures 3 to 5, the pixel electrode 12 includes opposing first side edges 1201 and a second side edge 1202 connecting the two first side edges 1201. The orthographic projection of the first side edge 1201 on the second electrode 112 overlaps with the first sub-portion 1122. With this arrangement, the second electrode 112 can be used as a shielding layer to shield the coupling capacitance between the data line 13 and the pixel electrode 12. Because the second electrode 112 is made of a transparent material, it does not affect the size of the light-transmitting area A1 of the display panel.

[0053] 3 to 6 , the orthographic projection of the second side 1202 on the second electrode 112 overlaps the first sub-portion 1122. With the above configuration, the second electrode 112 can be used as a shielding layer to shield the coupling capacitance between the scan line 14 and the pixel electrode 12.

[0054] In the display panel of the present application, as shown in Figures 3, 4 and 6, the pixel electrode 12 includes a third side 1203 opposite to the second side 1202, the third side 1203 connects the two adjacent first sides 1201, and the orthographic projection of the third side 1203 on the auxiliary electrode 11 does not overlap with the second sub-portion 1123. The display panel also includes a third electrode 15, the third electrode 15 is adjacent to the third side 1203, and the orthographic projection of the third side 1203 on the third electrode 15 is located within the third electrode 15.

[0055] In this embodiment, the third side 1203 of the pixel electrode 12 is opposite the second side 1202, and the third side 1203 connects the two first side edges 1201. The first side 1201, the second side 1202, and the third side 1203 form the boundary of the pixel electrode 12. The third electrode 15 is disposed adjacent to the third side 1203, and the orthographic projection of the third side 1203 on the third electrode 15 is located within the third electrode 15. In other words, the third side 1203 overlaps with the third electrode 15. As shown in Figure 6, the third side 1203 is located on the side of the boundary of the third electrode 15 that is away from the boundary of the light-transmitting area A1.

[0056] The orthographic projection of the third side 1203 on the auxiliary electrode 11 does not overlap with the second sub-portion 1123. This means that, when viewed from the top view shown in FIG3 , the third side 1203 is spaced apart from the second sub-portion 1123. As shown in FIG6 , the third side 1203 is located on the side of the second sub-portion 1123 away from the boundary of the light-transmitting area A1.

[0057] In the display panel of the present application, as shown in Figures 3 to 6, the display panel includes cross-extending data lines 13 and scan lines 14, and the data lines 13 and scan lines 14 are located in the non-light-transmitting area A2; wherein, the orthographic projections of the data lines 13 and the scan lines 14 on the auxiliary electrode 11 are located in the second electrode 112, the orthographic projection of the first side 1201 on the data line 13 is located in the data line 13, and the orthographic projection of the second side 1202 on the scan line 14 is located in the scan line 14.

[0058] In this embodiment, the display panel includes a plurality of data lines 13 extending along a first direction and a plurality of data lines 13 extending along a second direction. The first direction and the second direction are arranged at an angle. The first direction and the second direction can be perpendicular, but are not limited to this. FIG3 illustrates the case where the first direction and the second direction are perpendicular.

[0059] In a sub-pixel 50, as shown in Figures 3, 5, and 6, two adjacent data lines 13 are adjacent to the first side 1201, the scan line 14 is adjacent to the second side 1202, and the third electrode 15 is adjacent to the third side 1203. The data lines 13, scan lines 14, and third electrodes 15 are all made of opaque materials. Therefore, the data lines 13, scan lines 14, and third electrodes 15 define the range of the light-transmitting area A1. In other words, the area enclosed by the data lines 13 near the boundary of the pixel electrode 12, the scan lines 14 near the boundary of the pixel electrode 12, and the third electrode 15 near the boundary of the pixel electrode 12 constitutes the light-transmitting area A1.

[0060] Typically, in order to avoid the coupling effect of the signal line in the non-transparent area A2 on the pixel electrode 12, the pixel electrode 12 and the orthographic projection of the signal line on the first substrate 10 are spaced apart. Since the pixel electrode 12 is not provided in the spaced area, the liquid crystal in the spaced area cannot be controlled to deflect, and the spaced area cannot be effectively displayed. That is, the effective display area of ​​the pixel is smaller than the area defined by the signal line. In the present application, as shown in FIG5 , by providing the second electrode 112 as a shielding layer, the coupling effect between the data line 13 and the pixel electrode 12 can be avoided, and the boundary of the pixel electrode 12 can be extended in the direction close to the data line 13 to overlap with the data line 13. Therefore, the liquid crystal in the spaced area overlaps with the pixel electrode 12 and can be controlled to deflect, so that the spaced area can be effectively displayed, thereby increasing the aperture ratio.

[0061] As shown in FIG6 , by providing the second electrode 112 as a shielding layer, coupling between the scan line 14 and the pixel electrode 12 can be avoided, and the boundary of the pixel electrode 12 can extend toward the scan line 14 , thereby increasing the aperture ratio.

[0062] As shown in FIG6 , by providing the second electrode 112 as a shielding layer, the coupling between the third electrode 15 and the pixel electrode 12 can be avoided, and the boundary of the pixel electrode 12 can extend toward the third electrode 15 , thereby increasing the aperture ratio.

[0063] That is to say, the light-transmitting area A1 is jointly defined by the data line 13, the scanning line 14 and the third electrode 15, that is, the data line 13 is close to the boundary of the pixel electrode 12, the scanning line 14 is close to the boundary of the pixel electrode 12, and the third electrode 15 is close to the boundary of the pixel electrode 12 to form the light-transmitting area A1, and the first side 1201, the second side 1202, and the third side 1203 of the pixel electrode 12 are all located outside the light-transmitting area A1.

[0064] In some embodiments, the orthographic projection of the first side 1201 on the data line 13 may coincide with the boundary of the end of the data line 13 close to the pixel electrode 12. In this case, compared with the scheme in which the data line 13 and the pixel electrode 12 are spaced apart, the aperture ratio of the pixel electrode 12 can still be increased. Similarly, in some embodiments, the orthographic projection of the second side 1202 on the scan line 14 may coincide with the boundary of the end of the scan line 14 close to the pixel electrode 12. In some embodiments, the orthographic projection of the third side 1203 on the third electrode 15 may coincide with the boundary of the end of the third electrode 15 close to the pixel electrode 12.

[0065] In the display panel of the present application, as shown in Figures 3 and 4, an opening 1120 is provided in the second sub-portion 1123 adjacent to the third side 1203, the first electrode 111 is electrically connected to the pixel electrode 12 through a first via 1111, and the orthographic projection of the first via 1111 on the third electrode 15 is located within the third electrode 15.

[0066] In this embodiment, the second electrode 112 surrounds the first electrode 111 and is provided with an opening 1120 only at the third side 1203 adjacent to the pixel electrode 12. A connecting wire passes through the opening 1120 to connect the first electrode 111 and the first via 1111. Correspondingly, the connecting wire of the pixel electrode 12 is also connected to the first via 1111, thereby achieving electrical connection between the second electrode 112 and the pixel electrode 12. The orthographic projection of the first via 1111 on the third electrode 15 is located within the third electrode 15. The proximity of the first via 1111 to the opening 1120 shortens the connecting wire and makes the arrangement of the signal lines in the non-transparent area A2 more compact. Furthermore, by arranging the first via 1111 in the non-transparent area A2, the orthographic projection of the first via 1111 on the first substrate 10 can be larger, thereby achieving better electrical conductivity. This is because, if the first via 1111 is arranged within the translucent area A1, the aperture ratio would be sacrificed.

[0067] In the display panel of the present application, the display panel includes a plurality of sub-pixels 50. The second electrodes 112 corresponding to two adjacent sub-pixels 50 are connected. A signal input terminal 16 is provided in the non-display area NA of the display panel. The second electrode 112 is electrically connected to the signal input terminal 16.

[0068] In this embodiment, the second electrodes 112 corresponding to two adjacent sub-pixels 50 are connected. That is, the second electrodes 112 of the display panel are a continuously arranged grid-like film layer, and the second electrodes 112 are provided with signals by the signal input terminal 16 .

[0069] In this embodiment, as shown in FIG. 1 , the signal input terminal 16 may be disposed in the non-display area NA. There may be one or more signal input terminals 16 . By disposing more signal input terminals 16 , a stable voltage signal can be provided to the second electrode 112 .

[0070] The signal input terminal 16 can provide a fixed voltage signal, such as a common voltage, but is not limited thereto. The voltage signal at the signal input terminal 16 can be equal to the voltage signal at the fourth electrode 21, but is not limited thereto. The signal input terminal 16 can also be provided with no signal. In this case, the second electrode 112 is not connected to any signal.

[0071] When the signal input terminal 16 is connected to a common voltage, a voltage difference is generated between the second sub-portion 1123 and the pixel electrode 12, which slightly affects the efficiency of the liquid crystal in the overlapping region. However, the increase in light transmittance due to the increased aperture ratio far outweighs the loss in light transmittance due to the reduced efficiency of the liquid crystal in the overlapping region. Therefore, overall, the provision of the second sub-portion 1123 still improves the light transmittance of the display panel.

[0072] At the same time, since the liquid crystal efficiency in the overlapping area is different from the liquid crystal efficiency in other areas within the light-transmitting area A1, the viewing angle of the display panel can also be improved.

[0073] In the display panel of the present application, as shown in Figures 3 and 4 , the pixel electrode 12 includes a first trunk electrode 121 and a second trunk electrode 122 that intersect and are perpendicular to each other. The first trunk electrode 121 and the second trunk electrode 122 divide the pixel electrode 12 into four pixel sub-sections 12a. The angles between the branch electrodes 123 and the second trunk electrode 122 of the four pixel sub-sections 12a are different. A chamfer 11211 is provided on two adjacent sides of the second sub-section 1123.

[0074] In this embodiment, the included angles between the branch electrodes 123 of the four sub-pixels 50 and the second trunk electrode 122 may be 45°, 135°, −45°, and −135°, respectively.

[0075] In some embodiments, as shown in FIG4 , a chamfer 11211 is provided at the angle between two adjacent sides of the pixel electrode 12. The chamfer 11211 connects two adjacent sides of the second sub-section 1123 and forms an obtuse angle with the adjacent sides of the second sub-section 1123. This arrangement adjusts the deflection angle of the liquid crystal at the angle of the second sub-section 1123 so that the long axis of the liquid crystal is tilted at 45°, 135°, -45°, and -135° relative to the horizontal, thereby maximizing transmittance.

[0076] In the display panel of the present application, as shown in Figure 3, the display panel includes a second substrate 20 arranged opposite to the first substrate 10, and the second substrate 20 is arranged on the side of the pixel electrode 12 facing away from the first substrate 10; wherein, the first substrate 10 and the second substrate 20 are sandwiched with a liquid crystal layer 30, and a fourth electrode 21 is provided on the side of the first substrate 10 close to the second substrate 20.

[0077] In this embodiment, the liquid crystal in the liquid crystal layer 30 is deflected at least by the electric field formed by the fourth electrode 21 and the pixel electrode 12. The electric field formed by the area of ​​the auxiliary electrode 11 located within the light-transmitting area A1 and the fourth electrode 21 can also cause the liquid crystal in the liquid crystal layer 30 to deflect.

[0078] The fourth electrode 21 can be connected to a common voltage, and the liquid crystal in the liquid crystal layer 30 is deflected under the electric field formed by the common voltage and the signal of the pixel electrode 12 .

[0079] The present application also provides a display terminal, which includes the above-mentioned display panel.

[0080] In this embodiment, the display terminal may be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, or a navigator.

[0081] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0082] The above is a detailed introduction to a display panel and a display terminal provided in the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solutions and core ideas of the present application. Ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A display panel, comprising: a first substrate; An auxiliary electrode, disposed on the first substrate, the auxiliary electrode comprising a first electrode; A pixel electrode, disposed on a side of the auxiliary electrode away from the first substrate, the pixel electrode comprising branch electrodes and a slit between two adjacent branch electrodes; Wherein, at least a part of the orthographic projection of the slit on the first electrode is located inside the first electrode, and the first electrode is electrically connected to the pixel electrode.

2. The display panel according to claim 1, wherein: The display panel includes a plurality of light-transmitting areas corresponding to a plurality of sub-pixels and a non-light-transmitting area between the light-transmitting areas. The auxiliary electrode also includes a second electrode, which is separated from and insulated from the first electrode. The first electrode is disposed in the light-transmitting area, and the second electrode includes a first sub-portion disposed in the non-light-transmitting area.

3. The display panel according to claim 2, wherein: The second electrode further includes a second sub-portion disposed in the light-transmitting region, and the first sub-portion and the second sub-portion are connected to each other.

4. The display panel according to claim 3, wherein: The pixel electrode includes opposite first side edges and a second side edge connecting the two first side edges, and the orthographic projections of the first side edge and the second side edge on the second electrode both overlap with the first sub-portion.

5. The display panel according to claim 4, wherein: The pixel electrode includes a third side opposite to the second side, the third side connecting the two first sides, the orthographic projection of the third side on the auxiliary electrode does not overlap with the second sub-portion, and the display panel also includes a third electrode, the third electrode is adjacent to the third side, and the orthographic projection of the third side on the third electrode is located within the third electrode.

6. The display panel according to claim 5, wherein: The second sub-portion is provided with an opening adjacent to the third side edge, the first electrode is electrically connected to the pixel electrode through a first via hole, and the orthographic projection of the first via hole on the third electrode is located inside the third electrode.

7. The display panel according to claim 4, wherein: The display panel comprises data lines and scan lines extending crosswise, and the data lines and the scan lines are located in the non-light-transmitting area; The positive projections of the data line and the scan line on the auxiliary electrode are located in the second electrode, the positive projection of the first side on the data line is located in the data line, and the second The orthographic projection of the side edge on the scan line is located within the scan line.

8. The display panel according to claim 3, wherein: The pixel electrode includes a first trunk electrode and a second trunk electrode that are crossed and perpendicular to each other. The first trunk electrode and the second trunk electrode divide the pixel electrode into four pixel sub-divisions. The angles between the branch electrodes of the four pixel sub-divisions and the second trunk electrode are different. A guide angle is set on two adjacent sides of the second sub-division.

9. The display panel according to claim 2, wherein: The second electrodes corresponding to two adjacent sub-pixels are connected, a signal input terminal is provided in a non-display area of ​​the display panel, and the second electrode close to the non-display area is electrically connected to the signal input terminal.

10. The display panel according to claim 9, wherein: The display panel comprises a second substrate arranged opposite to the first substrate, wherein the second substrate is arranged on a side of the pixel electrode away from the first substrate; A liquid crystal layer is sandwiched between the first substrate and the second substrate, and a fourth electrode is disposed on a side of the first substrate close to the second substrate.

11. The display panel according to claim 10, wherein: The voltage signal of the fourth electrode is the same as the voltage signal of the signal input terminal.

12. The display panel according to claim 1, wherein: The pixel electrode and the auxiliary electrode are both made of transparent conductive materials.

13. A display terminal, wherein: The display terminal includes a display panel, and the display panel includes: a first substrate; An auxiliary electrode, disposed on the first substrate, the auxiliary electrode comprising a first electrode; A pixel electrode, disposed on a side of the auxiliary electrode away from the first substrate, the pixel electrode comprising branch electrodes and a slit between two adjacent branch electrodes; Wherein, at least a part of the orthographic projection of the slit on the first electrode is located inside the first electrode, and the first electrode is electrically connected to the pixel electrode.

14. The display terminal according to claim 13, wherein: The display panel includes a plurality of light-transmitting areas corresponding to a plurality of sub-pixels and a non-light-transmitting area between the light-transmitting areas. The auxiliary electrode also includes a second electrode, which is separated from and insulated from the first electrode. The first electrode is disposed in the light-transmitting area, and the second electrode includes a first sub-portion disposed in the non-light-transmitting area.

15. The display terminal according to claim 14, wherein: The second electrode further includes a second sub-portion disposed in the light-transmitting region, and the first sub-portion and the second sub-portion are connected to each other.

16. The display terminal according to claim 15, wherein: The pixel electrode includes opposite first side edges and a second side edge connecting the two first side edges, and the orthographic projections of the first side edge and the second side edge on the second electrode both overlap with the first sub-portion.

17. The display terminal according to claim 16, wherein: The pixel electrode includes a third side opposite to the second side, the third side connecting the two first sides, the orthographic projection of the third side on the auxiliary electrode does not overlap with the second sub-portion, and the display panel also includes a third electrode, the third electrode is adjacent to the third side, and the orthographic projection of the third side on the third electrode is located within the third electrode.

18. The display terminal according to claim 17, wherein: The second sub-portion is provided with an opening adjacent to the third side edge, the first electrode is electrically connected to the pixel electrode through a first via hole, and the orthographic projection of the first via hole on the third electrode is located inside the third electrode.

19. The display terminal according to claim 16, wherein the display panel comprises data lines and scan lines extending crosswise, and the data lines and the scan lines are located in the non-light-transmitting area; in, The orthographic projections of the data line and the scan line on the auxiliary electrode are located in the second electrode, the orthographic projection of the first side on the data line is located in the data line, and the orthographic projection of the second side on the scan line is located in the scan line.

20. The display terminal according to claim 15, wherein: The pixel electrode includes a first trunk electrode and a second trunk electrode that are crossed and perpendicular to each other. The first trunk electrode and the second trunk electrode divide the pixel electrode into four pixel sub-divisions. The angles between the branch electrodes of the four pixel sub-divisions and the second trunk electrode are different. A guide angle is set on two adjacent sides of the second sub-division.

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