Display panel and display terminal

Abstract

A display panel and a display terminal. The display panel comprises a pixel electrode layer (10). The pixel electrode layer (10) comprises a first pixel portion (A1) provided with a plurality of spaced first branch electrodes (111) and a second pixel portion (A2) provided with a plurality of spaced second branch electrodes (112); the spacing (S1) between two adjacent first branch electrodes (111) is equal to the spacing (S2) between two adjacent second branch electrodes (112), and the width (L1) of the first branch electrodes (111) is different from the width (L2) of the second branch electrodes (112).

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] The viewing angle of a liquid crystal display panel includes two indicators: horizontal viewing angle and vertical viewing angle. The horizontal viewing angle indicates that the displayed image can still be seen normally at a certain angle to the left or right of the vertical normal of the display plane. This angle range is the horizontal viewing angle of the liquid crystal display panel (hereinafter referred to as viewing angle). Similarly, the vertical viewing angle refers to the viewing angle in the up and down directions of the liquid crystal display panel.

[0003] The related art uses a multi-domain mode to improve the viewing angle, but the process is complicated and when manufacturing the branch electrodes of the pixel electrode, the branch electrodes are prone to being disconnected or broken.

[0004] The present application proposes a display panel that can improve the viewing angle of the display panel while overcoming process defects. SUMMARY OF THE INVENTION

[0005] The present application provides a display panel and a display terminal to improve the viewing angle of the display panel while overcoming process defects.

[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 a substrate and a pixel electrode layer disposed on the substrate, wherein the pixel electrode layer comprises at least a first pixel portion and a second pixel portion that do not overlap each other, wherein a plurality of first branch electrodes are disposed in the first pixel portion, and a plurality of second branch electrodes are disposed in the second pixel portion.

[0008] The distance between two adjacent first branch electrodes is equal to the distance between two adjacent second branch electrodes, and the width of the first branch electrodes is different from the width of the second branch electrodes.

[0009] The present application also provides a display terminal, comprising the above-mentioned display panel, wherein the display panel comprises a substrate and a pixel electrode layer disposed on the substrate, the pixel electrode layer comprising at least a first pixel portion and a second pixel portion that do not overlap each other, a plurality of spaced-apart first branch electrodes disposed in the first pixel portion, and a plurality of spaced-apart second branch electrodes disposed in the second pixel portion;

[0010] The distance between two adjacent first branch electrodes is equal to the distance between two adjacent second branch electrodes, and the width of the first branch electrodes is different from the width of the second branch electrodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG1 is a schematic diagram of a partially enlarged structure of a display panel provided in an embodiment of the present application;

[0012] FIG2 is a schematic cross-sectional view of the display panel in FIG1 ;

[0013] FIG3 is a schematic diagram showing the principle of single-slit diffraction;

[0014] FIG4 shows the relationship between the spacing and the deviation value between two adjacent branch electrodes;

[0015] FIG5 shows the relationship between the width of the branch electrode and the deviation value;

[0016] FIG6 is a schematic diagram of a partially enlarged structure of the display panel in FIG1 ;

[0017] FIG7 is another partial enlarged structural schematic diagram of the display panel in FIG1 ;

[0018] FIG8 illustrates a gamma adjustment method provided in an embodiment of the present application. Modes for Carrying Out the Invention

[0019] 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.

[0020] Referring to FIG. 1 , the display panel includes a substrate 51 and a pixel electrode layer 10 . The pixel electrode layer 10 includes a plurality of branch electrodes 11 extending side by side. Two adjacent branch electrodes 11 are spaced apart to form a slit.

[0021] It should be understood that the display panel can be a vertical alignment (VA) liquid crystal display panel. As shown in Figure 2, the display panel includes a substrate 51 and an opposing substrate 52 arranged in a cell-to-cell configuration, with a liquid crystal layer 53 sandwiched between the substrate 51 and the opposing substrate 52. By providing a pixel electrode layer 10 on one of the substrates 51 and the opposing substrate 52, and a common electrode layer 55 on the other, the electric field formed between the pixel electrode layer 10 and the common electrode layer 55 drives the deflection of the liquid crystal molecules in the liquid crystal layer 53, thereby achieving grayscale control of the displayed image.

[0022] Alternatively, in other embodiments, the display panel may be a Fringe Field Switching (FFS) or In-Plane Switching (IPS) liquid crystal display panel, comprising a substrate 51 and an opposing substrate 52 arranged in a cell-like configuration, with a liquid crystal layer 53 sandwiched between the substrate 51 and the opposing substrate 52. The pixel electrode layer and the common electrode layer are disposed on the substrate 51 or the opposing substrate, respectively. The electric field formed between the pixel electrode layer 10 and the common electrode layer 55 drives the deflection of liquid crystal molecules in the liquid crystal layer 53, thereby controlling the grayscale of the displayed image.

[0023] In all embodiments of the present application, the display panel includes a plurality of pixel units 44, and the pixel electrode layer 10 includes a plurality of pixel electrodes 100. Each pixel electrode 100 is correspondingly arranged in a pixel unit 44. That is to say, one pixel unit 44 corresponds one to one pixel electrode 100. The pixel unit 44 can be a single domain or a multi-domain. For example, the multi-domain can be 2 domains, 4 domains or 8 domains, but is not limited thereto. Each domain includes a plurality of branch electrodes 11, and the plurality of branch electrodes 11 located in the same domain extend along the same extension direction, and the widths of the plurality of branch electrodes 11 in the same domain are the same, and the spacing between two adjacent branch electrodes 11 in the same domain is the same. That is to say, in the same domain, the spacing between two adjacent branch electrodes 11 is consistent, and the widths of two adjacent branch electrodes 11 are consistent.

[0024] By setting the pixel unit 44 to a multi-domain mode, the deflection directions of the liquid crystal molecules in different domains can be differentiated, thereby improving the viewing angle of the display panel.

[0025] It should be noted that the spacing between two adjacent branch electrodes 11 is the same, which means that it is the same within the range allowed by the process accuracy. That is, when the spacing between two adjacent branch electrodes 11 has slight differences due to process fluctuations (for example, the difference is within 0.4 μm), the spacing between two adjacent branch electrodes 11 should still be regarded as the same.

[0026] The pixel electrode 100 includes a plurality of branch electrodes 11. The branch electrodes 11 extend in a longitudinal direction, and a direction perpendicular to the longitudinal direction is a width direction. The distance between two adjacent branch electrodes 11 in the width direction is the distance between the branch electrodes 11. In other words, the width of the slit is the distance between the branch electrodes 11.

[0027] In this embodiment, the display panel further includes a plurality of thin film transistors 60 arranged corresponding to the pixel units 44 . The drain of the thin film transistor 60 is connected to the pixel electrode layer 10 for turning on or off the voltage signal input to the pixel electrode layer 10 .

[0028] In this embodiment, the pixel electrode layer 10 includes a first pixel portion A1 and a second pixel portion A2 that do not overlap. Non-overlapping means that the orthographic projection of the first pixel portion A1 on the substrate 51 does not overlap with the orthographic projection of the second pixel portion A2 on the substrate 51, that is, the first pixel portion A1 and the second pixel portion A2 do not intersect.

[0029] The first pixel portion A1 is provided with a plurality of first branch electrodes 111 arranged side by side. The first branch electrodes 111 extend in the longitudinal direction of the first branch electrodes 111. The width L1 of the first branch electrodes refers to the width dimension of the first branch electrodes 111. The spacing S1 between the first branch electrodes 111 refers to the width distance between two adjacent first branch electrodes 111. The ratio of the width L1 of the first branch electrodes to the spacing S2 between the second branch electrodes 112 is a first ratio P1.

[0030] Similarly, the extension direction of the second branch electrodes 112 is the length direction of the second branch electrodes 112. The width L2 of the second branch electrodes refers to the width dimension of the second branch electrodes 112. The spacing S2 between the second branch electrodes 112 refers to the spacing between two adjacent second branch electrodes 112 in the width direction. The ratio of the width L2 of the second branch electrodes to the spacing S2 between the second branch electrodes 112 is a second ratio P2.

[0031] In the embodiment of the present application, by setting the first ratio P1 to be different from the second ratio P2 and the spacing S1 between the first branch electrodes 111 to be the same as the spacing S2 between the second branch electrodes 112, the first ratio P1 of the first pixel portion A1 of the display panel and the second ratio P2 of the second pixel portion A2 can be made different, thereby further improving the viewing angle of the display panel. At the same time, by setting the spacing S1 between the first branch electrodes 111 to be the same as the spacing S2 between the second branch electrodes 112, the problem of disconnection or breakage between the branch electrodes 11 during display panel manufacturing can be improved. Disconnection refers to the connection between two adjacent branch electrodes 11 when they should be slits in the width direction, and breakage refers to the disconnection of the branch electrodes 11 when they should be continuous in the length direction.

[0032] The principle that the spacing S1 between the first branch electrodes 111 and the spacing S2 between the second branch electrodes 112 are the same so as to improve the problem of disconnection or breakage between the branch electrodes 11 is as follows:

[0033] As shown in Figure 3, based on the single-slit diffraction principle of light, a is the single-slit width, the distance between the slit and the observation screen is V, θ is the diffraction angle, the position of the light on the observation screen is X, and the distance from the position X on the observation screen to the center O of the observation screen is OX=θ*V. Assuming the wavelength of the light source is λ, the formula for the light intensity of single-slit Langhefei diffraction is:

[0034] ;

[0035] Where I0 is the light intensity at the center, and the light intensity I0 is proportional to the square of the single slit width a.

[0036] The above principle shows that different first ratios P1 = L1 / S1 result in different amounts of light energy transmitted during exposure. The diffracted energy is related to the single slit width: a larger slit width increases the central principal maximum energy, and the light intensity is proportional to the square of the single slit width. Furthermore, the diffracted energy has different effects on adjacent first ratios P1.

[0037] When manufacturing the pixel electrode layer 10, the patterning process includes steps such as coating photoresist, exposure and development, and etching. First, photoresist is coated on the pixel electrode layer 10 to form a photoresist layer. Then, a mask is used to block the photoresist layer. The mask is provided with openings corresponding to the branch electrodes 11 or slits, and light is transmitted through the openings through the photoresist layer for exposure and development. The opening of the mask is equivalent to the width of a single slit. Based on the above principle, when the width of a single slit is different, due to the diffraction of light, the energy distribution of light passing through each single slit on the photoresist layer is different. Therefore, the width of the branch electrodes 11 or slits actually formed on the photoresist layer deviates from the design value, which in turn leads to the problem of residual connection or disconnection between the branch electrodes 11.

[0038] In the present application, the spacing between the branch electrodes 11 in different areas of the display panel is set to be the same, so that the energy of the light formed by the single slit diffraction can be close at each position of the photoresist layer, thereby avoiding the pattern of the photoresist layer from deviating from the original design value, and further reducing the risk of damage or disconnection of the branch electrodes 11 of the pixel electrode layer 10 in subsequent etching processes.

[0039] It should be understood that the viewing angle can be improved by making the ratio of the width of the branch electrodes 11 in different areas of the display panel to the spacing between two adjacent branch electrodes 11 different. In the related art, the widths of the branch electrodes 11 in different areas of the display panel are the same, while the spacing between two adjacent branch electrodes 11 is different to achieve a different ratio of the width of the branch electrode 11 to the spacing between two adjacent branch electrodes 11. Since the spacing between two adjacent branch electrodes 11 is different, that is, the size of the opening of the mask is different, and since the light intensity I0 is proportional to the square of the single slit width a, the energy distribution of the light on the photoresist layer during exposure is different, resulting in a deviation between the pattern formed on the photoresist layer and the pattern of the mask. Therefore, during the production process, the spacing between two adjacent branch electrodes 11 of the display panel actually manufactured is different from the design value, and some adjacent branch electrodes 11 will form a continuous residue, and some branch electrodes 11 will form a broken line. The continuous residue is caused by insufficient exposure energy, and the broken line is caused by excessive exposure energy.

[0040] If the branch electrodes 11 are disconnected or broken, the corresponding area of ​​the branch electrodes 11 cannot provide a preset electric field, thereby causing the deflection of liquid crystal molecules in the area to be uncontrolled, affecting the display effect of the display panel.

[0041] The size C1 corresponding to the branch electrode 11 in the mask is compared with the size C2 of the branch electrode 11 after actual production to obtain a deviation value C3=C1-C2. In this application, the absolute value of the deviation is used to measure the level of dimensional accuracy. The larger the absolute value of the deviation, the lower the dimensional accuracy, and the smaller the absolute value of the deviation, the higher the dimensional accuracy. By reducing the absolute value of the deviation, the dimensional accuracy in the process can be improved, thereby reducing the risk of continuous damage or broken lines in the pixel electrode layer 10. The inventors of this application have found in long-term practice and research that the spacing between two adjacent branch electrodes 11 has a greater impact on the deviation than the width of the branch electrode 11.

[0042] Figure 4 shows the relationship between the spacing between two adjacent branch electrodes 11 and the deviation value. When the spacing between two adjacent branch electrodes 11 is 2.2 microns, 2.4 microns, and 2.8 microns, the corresponding deviation values ​​are 0.34 microns, -0.1 microns, and -0.21 microns, respectively. A negative deviation value indicates that C1 is smaller than C2, while a positive deviation value indicates that C1 is larger than C2.

[0043] As shown in Figure 5, the corresponding relationship between the width and deviation of the branch electrode 11 is shown. When the width of the branch electrode 11 is 2.8 microns, 3.2 microns, 3.6 microns, 3.8 microns, and 4.0 microns, the corresponding deviation values ​​are 0.2 microns, 0.34 microns, 0.43 microns, 0.47 microns, and 0.5 microns, respectively.

[0044] As can be seen, the spacing between two adjacent branch electrodes 11 is negatively correlated with the deviation value, while the width of the branch electrodes 11 is positively correlated with the deviation value. When the spacing between two adjacent branch electrodes 11 increases from 2.2 microns to 2.8 microns, the increase is 0.6 microns, and the corresponding increase in the deviation value is 0.55 microns. When the width of the branch electrodes 11 increases from 2.8 microns to 4.0 microns, the increase is 1.2 microns, and the corresponding increase in the deviation value is 0.3 microns. This means that the spacing between two adjacent branch electrodes 11 has a stronger impact on the deviation value.

[0045] Therefore, the present application makes the spacing between two adjacent branch electrodes 11 in different areas the same and makes the widths of the branch electrodes 11 in different areas different, thereby achieving different ratios of the width of the branch electrode 11 to the spacing between two adjacent branch electrodes 11, so as to improve the viewing angle. At the same time, it can also improve the problem that the ratio of the width of the branch electrode 11 to the spacing between two adjacent branch electrodes 11 in actual production is far from the specification.

[0046] It should be noted that in this application, a phase shift mask (PSM) can also be used. PSM eliminates diffraction and can further improve the problem in actual production that the ratio of the width of the branch electrode 11 to the spacing between two adjacent branch electrodes 11 is far from the specification.

[0047] In all embodiments of the present application, the spacing S1 between the first branch electrodes 111 ranges from 1 micron to 5 microns. For example, the spacing S1 between the first branch electrodes 111 can be 2.0 microns, 2.2 microns, 2.4 microns, 2.6 microns, 2.8 microns, 3.0 microns, etc., but is not limited thereto. The spacing S2 between the second branch electrodes 112 is the same as the spacing S1 between the first branch electrodes 111. That is, when the spacing S1 between the first branch electrodes 111 is 2.2 microns, the spacing S2 between the second branch electrodes 112 is also 2.2 microns, and so on.

[0048] In all embodiments of the present application, the width L1 of the first branch electrode ranges from 1 micron to 5 microns, and the width L2 of the second branch electrode ranges from 1 micron to 5 microns. The width L1 of the first branch electrode can be 2.0 microns, 2.2 microns, 2.4 microns, 2.6 microns, 2.8 microns, 3.0 microns, 3.2 microns, 3.4 microns, 3.6 microns, 3.8 microns, or 4.0 microns, but is not limited thereto. The width L2 of the second branch electrode can be 2.0 microns, 2.2 microns, 2.4 microns, 2.6 microns, 2.8 microns, 3.0 microns, 3.2 microns, 3.4 microns, 3.6 microns, 3.8 microns, or 4.0 microns, but is not limited thereto. The width L1 of the first branch electrode is different from the width L2 of the second branch electrode. That is, when the width L1 of the first branch electrode is 2.4 microns, the width L2 of the second branch electrode can be a value other than 2.4 microns.

[0049] In this embodiment, each pixel electrode 100 includes a main electrode 70, which divides a pixel unit 44 into at least two domains. Each domain includes a plurality of branch electrodes 11 extending away from the main electrode 70. Within each domain, the branch electrodes 11 extend in the same direction, have the same width, and have the same spacing between adjacent branch electrodes 11.

[0050] In this embodiment, when the pixel electrode 100 includes a main electrode 70, the main electrode 70 can divide the pixel unit 44 into two domains. When the pixel electrode 100 includes two first main electrodes and a second main electrode, the two main electrodes 70 can divide the pixel unit 44 into four domains. In some embodiments, the first main electrode and the second main electrode can be arranged vertically. The angles between the branch electrodes 11 and the first main electrode in the four domains can be 45 degrees, 135 degrees, -45 degrees, and -135 degrees, respectively. But not limited to this. The angle between the branch electrode 11 and the main electrode 70 can be set as needed, and this application does not impose any restrictions on this.

[0051] By setting the included angles between the branch electrodes 11 and the main electrode 70 in multiple domains to be different, the oblique electric fields generated by different domains can induce the liquid crystal molecules in different domains to tilt in different directions, thereby improving the color deviation.

[0052] In this embodiment, as shown in FIG6 , the pixel unit 44 includes at least two domains, namely, a first domain 21 and a second domain 22 . The first domain 21 and the second domain 22 can be any two different domains within the same pixel unit 44 . The first pixel portion A1 is located within the first domain 21 , and the multiple first branch electrodes 111 within the first pixel portion A1 are connected to the main electrode 70 . The second pixel portion A2 is located within the second domain 22 , and the multiple second branch electrodes 112 within the second pixel portion A2 are connected to the main electrode 70 . In other words, the orthographic projection of the first pixel portion A1 on the substrate 51 is located within the first domain 21 , and the orthographic projection of the second pixel portion A2 on the substrate 51 is located within the second domain 22 . The first pixel portion A1 and the second pixel portion A2 do not overlap.

[0053] Through the above arrangement, in the same pixel unit 44, the first ratio P1 of the first domain 21 is different from the second ratio P2 of the second domain 22, and the spacing S1 between the first branch electrodes 111 is the same as the spacing S2 between the second branch electrodes 112, thereby reducing the risk of connection or disconnection between the branch electrodes 11 of the first domain 21 and the second domain 22.

[0054] It should be understood that the display panel has multiple pixel units 44 , each pixel unit 44 may include a first domain 21 and a second domain 22 , the first pixel portion A1 may correspond to multiple first domains 21 , and the second pixel portion A2 may correspond to multiple second domains 22 .

[0055] In the display panel of the present application, as shown in FIG6 , the backbone electrode 70 divides the pixel unit 44 into four domains: a first domain 21, a second domain 22, a third domain 23, and a fourth domain 24. The first pixel portion A1 is located within two of these domains, and the second pixel portion A2 is located within the other two of these domains. The two domains of the first pixel portion A1 are not adjacent to each other, and the two domains of the second pixel portion A2 are not adjacent to each other. In other words, the first pixel portion A1 is located within the first domain 21 and the third domain 23, and the second pixel portion A2 is located within the second domain 22 and the fourth domain 24.

[0056] Optionally, in some embodiments, the first pixel portion A1 is located in the first domain 21 and the second domain 22, and the second pixel portion A2 is located in the third domain 23 and the fourth domain 24; or, the first pixel portion A1 is located in the first domain 21 and the fourth domain 24, and the second pixel portion A2 is located in the second domain 22 and the third domain 23.

[0057] In the display panel of the present application, as shown in Figures 1 and 7, the display panel includes a plurality of pixel units 44, and the pixel electrode layer 10 includes a plurality of pixel electrodes 100. Each pixel electrode 100 is correspondingly disposed in a pixel unit 44. Two adjacent pixel units 44 of unequal areas form a pixel group. In other words, two pixel units of unequal areas can correspond to the primary and secondary regions of a sub-pixel, respectively.

[0058] The pixel electrode 100 of the main area is spaced apart from the pixel electrode 100 of the sub-area. At the same time, the voltage applied to the pixel electrode 100 of the main area is different from the voltage applied to the pixel electrode 100 of the sub-area, so that the deflection angle of the liquid crystal molecules in the main area is different from the deflection angle of the liquid crystal molecules in the sub-area, so as to improve the viewing angle of the display panel.

[0059] In this embodiment, the first pixel portion A1 is located in one pixel unit 44 of each pixel group, and the second pixel portion A2 is located in another pixel unit 44 of each pixel group. In other words, the first pixel portion A1 can be located in the main area of ​​a sub-pixel, and the second pixel portion A2 can be located in the sub-area of ​​the same sub-pixel, or the first pixel portion A1 can be located in the sub-area of ​​a sub-pixel, and the second pixel portion A2 can be located in the main area of ​​the same sub-pixel.

[0060] In some embodiments, the first pixel portion A1 and the second pixel portion A2 may correspond to multiple pixel groups, that is, the first pixel portion A1 is located in a main region of multiple sub-pixels, and the second pixel portion A2 is located in a sub-region of multiple sub-pixels. Alternatively, the first pixel portion A1 is located in a sub-region of multiple sub-pixels, and the second pixel portion A2 is located in a main region of multiple sub-pixels.

[0061] It can be understood that the main area can be a single domain or multiple domains, and the secondary area can also be a single domain or multiple domains.

[0062] In the display panel of the present application, as shown in FIG1 , the display panel includes a plurality of first pixel units 41, second pixel units 42, and third pixel units 43 of different colors. The first pixel portion A1 is located in at least one of the first pixel unit 41, the second pixel unit 42, and the third pixel unit 43, and the second pixel portion A2 is located in at least one of the first pixel unit 41, the second pixel unit 42, and the third pixel unit 43.

[0063] In this embodiment, the first pixel unit 41 may be single-domain or multi-domain, and the first pixel unit 41 may include a main area and a sub-area or may not include a main area and a sub-area, which is not limited in this application.

[0064] In this embodiment, the second pixel unit 42 may be single-domain or multi-domain, and the second pixel unit 42 may include a main area and a sub-area, or may not include a main area and a sub-area, which is not limited in this application.

[0065] The first pixel portion A1 is located in at least one of the first pixel unit 41, the second pixel unit 42 and the third pixel unit 43, which means that the first pixel portion A1 is at least located in one or more first pixel units 41; and / or, the first pixel portion A1 is at least located in one or more second pixel units 42; and / or, the first pixel portion A1 is at least located in one or more third pixel units 43.

[0066] The configuration of the second pixel portion A2 is similar to that of the first pixel portion A1 and will not be repeated here.

[0067] In this embodiment, the third pixel unit 43 may be single-domain or multi-domain, and the third pixel unit 43 may include a main area and a sub-area, or may not include a main area and a sub-area, which is not limited in this application.

[0068] In this embodiment, the first pixel unit 41 may be a red pixel unit R, the second pixel unit 42 may be a green pixel unit G, and the third pixel unit 43 may be a blue pixel unit B. However, the present invention is not limited thereto.

[0069] In some embodiments, each pixel 40 may include four pixel units 44, namely a first pixel unit 41, a second pixel unit 42, a third pixel unit 43, and a fourth pixel unit. The first pixel unit 41 may be a red pixel unit R, the second pixel unit 42 may be a green pixel unit, the third pixel unit 43 may be a blue pixel unit B, and the fourth pixel unit may be a white pixel unit. However, this is not limited to these. The colors of the pixel units 44 can be set as needed, and this application does not impose any restrictions on this.

[0070] In the display panel of the present application, the display panel includes a plurality of first pixel units 41, second pixel units 42, and third pixel units 43 of different colors. An adjacent first pixel unit 41, a second pixel unit 42, and a third pixel unit 43 constitute a pixel 40, and the first pixel portion A1 and the second pixel portion A2 are located in different pixels 40.

[0071] In this embodiment, the first pixel portion A1 and the second pixel portion A2 correspond to different pixels 40. The first pixel portion A1 may correspond to one or more pixels 40, and the second pixel portion A2 may correspond to another portion of one or more pixels 40. The first pixel portion A1 and the second pixel portion A2 do not overlap.

[0072] In the display panel of the present application, as shown in FIG1 , the display panel further includes a third pixel portion A3 that does not overlap with the first pixel portion A1 and the second pixel portion A2. A plurality of spaced-apart third branch electrodes 113 are disposed within the third pixel portion. The spacing S1 between two adjacent first branch electrodes 111, the spacing S2 between two adjacent second branch electrodes 112, and the spacing S3 between two adjacent third branch electrodes are all equal. The widths L1, L2, and 113 of the first branch electrodes are all different. The ratio of the width L3 of the third branch electrode to the spacing S3 between two adjacent third branch electrodes 113 is a third ratio P3. The first ratio P1, the second ratio P2, and the third ratio P3 are all different. The spacing S1 between two adjacent first branch electrodes 111, the spacing S2 between two adjacent second branch electrodes 112, and the spacing S3 between two adjacent third branch electrodes are all the same.

[0073] In this embodiment, the third pixel portion A3 does not overlap with either the first pixel portion A1 or the second pixel portion A2. The arrangement of the third pixel portion A3 refers to the arrangement of the first pixel portion A1 and the second pixel portion A2 in the above embodiment. In other words, the third pixel portion A3 can correspond to at least one domain, or correspond to at least one main region or sub-region, or correspond to any one of at least one first pixel unit 41, at least one second pixel unit 42, and at least one third pixel unit 43, or the third region corresponds to a pixel 40 that corresponds neither to the first pixel portion A1 nor to the second pixel portion A2.

[0074] It should be understood that, in addition to the first pixel portion A1, the second pixel portion A2, and the third pixel portion A3, the display panel may further include a fourth pixel portion, a fifth pixel portion, etc. This application does not limit the number of pixel portions included in the display panel, and the number may be selected and set according to actual needs.

[0075] In some embodiments, the display panel may include a combination of multiple of the above embodiments, that is, in one display panel, the first pixel portion A1 may correspond to a plurality of pixel units 44, where the pixel unit 44 may be a domain, and / or a main area or a sub-area, and / or one of the first pixel unit 41, the second pixel unit 42, and the third pixel unit 43, and / or one pixel 40, etc. The second pixel portion A2 may correspond to a plurality of pixel units 44, where the pixel unit 44 may be a domain, and / or a main area or a sub-area, and / or one of the first pixel unit 41, the second pixel unit 42, and the third pixel unit 43, and / or one pixel 40, etc.

[0076] Through the above arrangement, the risk of connection or disconnection between the branch electrodes 11 can be reduced while further improving the viewing angle.

[0077] In the display panel of the present application, as shown in FIG8 , the abscissa represents grayscale values, and the ordinate represents normalized brightness. G1 represents the low grayscale range, G2 represents the mid-to-high grayscale range, and G3 represents the high grayscale range. When the widths L1 and L2 of the first branch electrodes of the display panel are different, while the spacing S1 between the first branch electrodes 111 and the spacing S2 between the second branch electrodes 112 are the same, adjusting the gamma curve can shift the side-view gamma of the red and green pixel units R and G at the mid-to-high grayscale G2 upward. This increases the ∆nd (the product of the refractive index anisotropy ∆n of the liquid crystal molecules and the thickness d of the liquid crystal layer 53) of the corresponding red and green pixel units R and G. For example, if L1 / S1 is originally set to 2.6 / 2.4, the widths of the branch electrodes 11 in the auxiliary regions of the red and green pixel units R and G can be increased, from 2.6 microns to 2.8 microns, or from 2.6 microns to 3.0 microns. Make specific adjustments based on the gamma curve to make the RGB gamma curve at each grayscale consistent and smooth.

[0078] 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.

[0079] 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.

[0080] 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 substrate and a pixel electrode layer disposed on the substrate, wherein the pixel electrode layer comprises at least a first pixel portion and a second pixel portion which do not overlap each other, wherein a plurality of spaced first branch electrodes are disposed in the first pixel portion, and a plurality of spaced second branch electrodes are disposed in the second pixel portion; in, The distance between two adjacent first branch electrodes is equal to the distance between two adjacent second branch electrodes, and the width of the first branch electrode is different from the width of the second branch electrode.

2. The display panel according to claim 1, wherein: The display panel includes a plurality of pixel units, the pixel electrode layer includes a plurality of pixel electrodes, and each of the pixel electrodes is disposed in a corresponding one of the pixel units; Among them, each of the pixel electrodes includes a main electrode that divides the pixel unit into at least two domains, the first pixel portion and the second pixel portion are located in different domains, and the multiple first branch electrodes in the first pixel portion are connected to the main electrode, and the multiple second branch electrodes in the second pixel portion are connected to the main electrode.

3. The display panel according to claim 2, wherein: The main electrode divides the pixel unit into four domains, the first pixel portion is located in two of the domains, the second pixel portion is located in the other two domains, the two domains of the first pixel portion are not adjacent, and the two domains of the second pixel portion are not adjacent.

4. The display panel according to claim 2, wherein: The trunk electrode divides the pixel unit into four domains, the first pixel portion is located in two of the domains, the second pixel portion is located in the other two of the domains, the two domains of the first pixel portion are adjacent, and the two domains of the second pixel portion are adjacent.

5. The display panel according to claim 1, wherein: The display panel includes a plurality of pixel units, the pixel electrode layer includes a plurality of pixel electrodes, and each of the pixel electrodes is disposed in a corresponding one of the pixel units; Two adjacent pixel units with unequal areas form a pixel group, the first pixel portion is located in one pixel unit of each pixel group, and the second pixel portion is located in another pixel unit of each pixel group.

6. The display panel according to claim 1, wherein: The display panel includes a plurality of first pixel units, second pixel units and third pixel units of different colors, the pixel electrode layer includes a plurality of pixel electrodes, and each of the first pixel units, each of the second pixel units and each of the third pixel units is correspondingly provided with one pixel electrode; The first pixel portion is located in at least one of the first pixel unit, the second pixel unit, and the third pixel unit, and the second pixel portion is located in at least one of the first pixel unit, the second pixel unit, and the third pixel unit.

7. The display panel according to claim 6, wherein: The first pixel unit is a red pixel unit, the second pixel unit is a green pixel unit, and the third pixel unit is a blue pixel unit.

8. The display panel according to claim 1, wherein: The display panel includes a plurality of first pixel units, second pixel units and third pixel units of different colors, the pixel electrode layer includes a plurality of pixel electrodes, and each of the first pixel units, each of the second pixel units and each of the third pixel units is correspondingly provided with one pixel electrode; Among them, one adjacent first pixel unit, one adjacent second pixel unit and one adjacent third pixel unit constitute one pixel, and the first pixel portion and the second pixel portion are located in different pixels.

9. The display panel according to claim 1, wherein: The display panel further includes a third pixel portion that does not overlap with the first pixel portion and the second pixel portion, wherein a plurality of spaced third branch electrodes are disposed in the third pixel portion; Among them, the spacing between two adjacent first branch electrodes, the spacing between two adjacent second branch electrodes, and the spacing between two adjacent third branch electrodes are all equal, and the width of the first branch electrode, the width of the second branch electrode, and the width of the third branch electrode are all different.

10. The display panel according to claim 9, wherein: The display panel includes a plurality of pixel units, the pixel electrode layer includes a plurality of pixel electrodes, and each of the pixel electrodes is disposed in a corresponding one of the pixel units; Among them, each of the pixel electrodes includes a main electrode that divides the pixel unit into at least three domains, the first pixel portion, the second pixel portion, and the third pixel portion are located in different domains, and the multiple first branch electrodes in the first pixel portion are connected to the main electrode, the multiple second branch electrodes in the second pixel portion are connected to the main electrode, and the multiple third branch electrodes in the third pixel portion are connected to the main electrode.

11. The display panel according to claim 9, wherein: The display panel includes a plurality of first pixel units, second pixel units and third pixel units of different colors, the pixel electrode layer includes a plurality of pixel electrodes, and each of the first pixel units, each of the second pixel units and each of the third pixel units is correspondingly provided with one pixel electrode; Among them, the first pixel portion is located in at least one of the first pixel unit, the second pixel unit, and the third pixel unit, the second pixel portion is located in at least one of the first pixel unit, the second pixel unit, and the third pixel unit, and the third pixel portion is located in at least one of the first pixel unit, the second pixel unit, and the third pixel unit.

12. The display panel according to claim 9, wherein: The display panel includes a plurality of first pixel units, second pixel units and third pixel units of different colors, the pixel electrode layer includes a plurality of pixel electrodes, and each of the first pixel units, each of the second pixel units and each of the third pixel units is correspondingly provided with one pixel electrode; Among them, one adjacent first pixel unit, one adjacent second pixel unit and one adjacent third pixel unit constitute one pixel, and the first pixel portion, the second pixel portion and the third pixel portion are located in different pixels.

13. The display panel according to claim 1, wherein: The distance between two adjacent first branch electrodes ranges from 1 micron to 5 microns, and the distance between two adjacent second branch electrodes ranges from 1 micron to 5 microns.

14. The display panel according to claim 1, wherein: The width of the first branch electrode is in a range of 1 micrometer to 5 micrometers, and the width of the second branch electrode is in a range of 1 micrometer to 5 micrometers.

15. A display terminal, comprising a display panel, the display panel comprising a substrate and a pixel electrode layer disposed on the substrate, the pixel electrode layer comprising at least a first pixel portion and a second pixel portion that do not overlap each other, a plurality of spaced first branch electrodes disposed in the first pixel portion, and a plurality of spaced second branch electrodes disposed in the second pixel portion; in, The distance between two adjacent first branch electrodes is equal to the distance between two adjacent second branch electrodes, and the width of the first branch electrode is different from the width of the second branch electrode.

16. The display terminal according to claim 15, wherein: The display panel includes a plurality of pixel units, the pixel electrode layer includes a plurality of pixel electrodes, and each of the pixel electrodes is disposed in a corresponding one of the pixel units; Among them, each of the pixel electrodes includes a main electrode that divides the pixel unit into at least two domains, the first pixel portion and the second pixel portion are located in different domains, and the multiple first branch electrodes in the first pixel portion are connected to the main electrode, and the multiple second branch electrodes in the second pixel portion are connected to the main electrode.

17. The display terminal according to claim 15, wherein: The display panel includes a plurality of pixel units, the pixel electrode layer includes a plurality of pixel electrodes, and each of the pixel electrodes is disposed in a corresponding one of the pixel units; Two adjacent pixel units with unequal areas form a pixel group, the first pixel portion is located in one pixel unit of each pixel group, and the second pixel portion is located in another pixel unit of each pixel group.

18. The display terminal according to claim 15, wherein: The display panel includes a plurality of first pixel units, second pixel units and third pixel units of different colors, the pixel electrode layer includes a plurality of pixel electrodes, and each of the first pixel units, each of the second pixel units and each of the third pixel units is correspondingly provided with one pixel electrode; The first pixel portion is located in at least one of the first pixel unit, the second pixel unit, and the third pixel unit, and the second pixel portion is located in at least one of the first pixel unit, the second pixel unit, and the third pixel unit.

19. The display terminal according to claim 15, wherein: The display panel includes a plurality of first pixel units, second pixel units and third pixel units of different colors, the pixel electrode layer includes a plurality of pixel electrodes, and each of the first pixel units, each of the second pixel units and each of the third pixel units is correspondingly provided with one pixel electrode; Among them, one adjacent first pixel unit, one adjacent second pixel unit and one adjacent third pixel unit constitute one pixel, and the first pixel portion and the second pixel portion are located in different pixels.

20. The display terminal according to claim 15, wherein: The display panel further includes a third pixel portion that does not overlap with the first pixel portion and the second pixel portion, wherein a plurality of spaced third branch electrodes are disposed in the third pixel portion; Among them, the spacing between two adjacent first branch electrodes, the spacing between two adjacent second branch electrodes, and the spacing between two adjacent third branch electrodes are all equal, and the width of the first branch electrode, the width of the second branch electrode, and the width of the third branch electrode are all different.

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