Display panel and display device

Abstract

The present disclosure relates to a display panel and a display device. The display panel includes: a display liquid crystal panel, including a plurality of sub-pixels arranged in an array defined by a first grid structure; a dimming liquid crystal panel, located on the light incident side of the display liquid crystal panel and stacked with the display liquid crystal panel, the dimming liquid crystal panel including a plurality of dimming pixels arranged in an array defined by a second grid structure; wherein the second grid structure includes a plurality of shading lines extending in a waveform along the row direction and having the same period, and the waveform phase difference of any two adjacent shading lines satisfies:

Description

Technical Field

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

[0002] Among flat panel display devices, liquid crystal display devices have a dominant position in the product market due to their small size, low power consumption, relatively low manufacturing cost and no radiation. How to improve the display quality of liquid crystal display devices and bring better viewing experience to users has always been the focus of research for those skilled in the art. Summary of the invention

[0003] According to one aspect of an embodiment of the present disclosure, there is provided a display panel, including:

[0004] A display liquid crystal panel, comprising a plurality of sub-pixels arranged in an array and defined by a first grid structure;

[0005] a dimming liquid crystal panel, located at the light incident side of the display liquid crystal panel and stacked with the display liquid crystal panel, the dimming liquid crystal panel comprising a plurality of dimming pixels arranged in an array and defined by a second grid structure;

[0006] The second grid structure includes a plurality of shading lines extending in a wave-like manner along the row direction and having the same period, and the waveform phase difference between any two adjacent shading lines is satisfy:

[0007] In some embodiments, the shading line extends in a curved wave shape or a zigzag wave shape.

[0008] In some embodiments, the shading line extends in a zigzag wave shape, including a plurality of periodically arranged zigzag units, and each of the zigzag units includes two straight line segments symmetrically arranged with the column direction as a symmetry axis.

[0009] In some embodiments, two ends of the straight line segment overlap with the first grid structure in a direction perpendicular to the display liquid crystal panel.

[0010] In some embodiments, two ends of the straight line segment overlap with intersection points of the first grid structure in a direction perpendicular to the display liquid crystal panel.

[0011] In some embodiments, along the column direction, the waveform phase of the nth shielding line is The waveform phase of the n+1th shading line And the waveform phase of the n+2th shading line satisfy: or or or Wherein, n is a positive integer.

[0012] In some embodiments, each row of the sub-pixels includes multiple pixel units, each of the pixel units includes a first sub-pixel, a second sub-pixel, and a third sub-pixel of different colors and arranged in sequence, and the sub-pixels in the same column have the same color; the area of ​​the dimming pixel is not less than the area of ​​the pixel unit.

[0013] In some embodiments, the area of ​​the dimming pixel is approximately four times the area of ​​the pixel unit; the absolute value of the waveform phase difference between any two adjacent shielding lines is is π / 3; or, the absolute value of the waveform phase difference between any two adjacent shading lines is is 2π / 3.

[0014] In some embodiments, the first grid structure includes: a plurality of first gate lines extending in a row direction and a plurality of first data lines extending in a column direction, and a shading matrix located on a side of the first gate lines and the first data lines away from the dimming liquid crystal panel, the line widths of the first gate lines and the first data lines are both smaller than the line width of the shading matrix, and the first gate lines and the first data lines overlap with the shading matrix in a direction perpendicular to the display liquid crystal panel.

[0015] In some embodiments, the second grid structure further includes: a plurality of second gate lines extending in a row direction and a plurality of second data lines extending in a column direction, the second gate lines and the second data lines are located on a side of the shading line away from the display liquid crystal panel, the line width of the second gate line is smaller than the line width of the shading line, and the second gate line overlaps with the shading line in a direction perpendicular to the display liquid crystal panel.

[0016] In some embodiments, the second data line extends in a zigzag wave shape.

[0017] In some embodiments, the dimming liquid crystal panel and the display liquid crystal panel are bonded by transparent optical adhesive; or, the dimming liquid crystal panel and the display liquid crystal panel share the same manufacturing substrate on the adjacent side.

[0018] According to another aspect of the embodiments of the present disclosure, a display device is provided, comprising the display panel of any one of the aforementioned embodiments.

[0019] The display panel of the embodiment of the present disclosure not only improves the moiré pattern of the display screen, but also further improves the rainbow pattern, thus having a better display quality.

[0020] Other features and advantages of the present disclosure will become apparent from the following detailed description of embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0022] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0023] Figure 1 This is a schematic diagram of a display panel structure according to an embodiment of the present disclosure;

[0024] Figure 2a Schematic diagram of visual dislocation of display panel when viewed from different viewing angles;

[0025] Figure 2b A comparison diagram of the relevant technical display images in corresponding areas as viewed by human eyes from viewing angles A and B;

[0026] Figure 3 A partial front view of a display panel according to another embodiment of the present disclosure;

[0027] Figure 4 A partial front view of a display panel according to another embodiment of the present disclosure;

[0028] Figure 5 A partial front view of a display panel according to another embodiment of the present disclosure;

[0029] Figure 6 A partial front view of a display panel according to another embodiment of the present disclosure;

[0030] Figure 7 A partial front view of a display panel according to another embodiment of the present disclosure;

[0031] Figure 8 A comparison diagram of color temperature simulation curves of a display panel according to an embodiment of the present disclosure and a display panel according to related art;

[0032] Figure 9a is a cross-sectional schematic diagram of a display panel according to an embodiment of the present disclosure;

[0033] Figure 9b FIG. 4 is a cross-sectional schematic diagram of a display panel according to another embodiment of the present disclosure.

[0034] It should be understood that the size of each part shown in the accompanying drawings is not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0035] Various embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the embodiments is merely illustrative and is in no way intended to limit the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully express the scope of the present disclosure to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps described in these embodiments should be interpreted as being merely illustrative and not as a limitation.

[0036] The words "first", "second" and similar words used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0037] In the present disclosure, when a specific element is described as being between a first element and a second element, an intervening element may or may not exist between the specific element and the first element or the second element.

[0038] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0039] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0040] At present, a common type of display device on the market is a liquid crystal display device. The structure of a conventional liquid crystal display device generally includes a liquid crystal display panel and a backlight module located on the light incident side of the liquid crystal display panel. Among them, the liquid crystal display panel includes: an array substrate and a filter substrate arranged relative to each other to form a liquid crystal box, a liquid crystal located between the array substrate and the filter substrate, a first polarizer located on the side of the array substrate away from the filter substrate, and a second polarizer located on the side of the filter substrate away from the array substrate, wherein the array substrate is closer to the backlight module than the filter substrate, and the polarization directions of the first polarizer and the second polarizer are orthogonal. The liquid crystal display panel includes a plurality of pixel units, and each pixel unit includes a plurality of sub-pixels of different colors. The sub-pixels of the same pixel unit are mixed in a certain proportion, so that the pixel unit can display colors visible to the human eye. Due to its own structural characteristics, this type of conventional liquid crystal display device has technical defects such as poor picture contrast and dark state light leakage.

[0041] In order to improve the above defects, the related art proposes a liquid crystal display device using dual-screen driving technology. The main difference from the above conventional liquid crystal display device is that its display panel includes a dimming liquid crystal panel and a display liquid crystal panel arranged in a stacked manner. Among them, the display liquid crystal panel has a similar structure and working principle to the above liquid crystal display panel. The dimming liquid crystal panel is located on the light incident side of the display liquid crystal panel and on the light exit side of the backlight module, and includes a plurality of dimming pixels arranged in an array. Each dimming pixel serves as a dimming unit, which is used to control the direction and intensity of the backlight incident on the corresponding area of ​​the display liquid crystal panel through the dimming pixel.

[0042] The liquid crystal display device of the related technology can realize dimming of the relatively fine area of ​​the picture. The principle is to adjust the transmittance of the corresponding dimming pixels of the dimming liquid crystal panel (i.e., the direction and / or strength of the backlight allowed to pass through) according to the grayscale of the displayed picture in different areas. For example, for areas with higher picture brightness, the transmittance of the corresponding dimming pixels of the dimming liquid crystal panel is also adjusted to be relatively high; and for areas with lower picture brightness, the transmittance of the corresponding dimming pixels of the dimming liquid crystal panel is also adjusted to be relatively low; for areas where the picture is displayed as black, the transmittance of the corresponding dimming pixels of the dimming liquid crystal panel is adjusted to be basically zero. Compared with the conventional liquid crystal display device mentioned above, this type of liquid crystal display device can overcome the defect of light leakage in the dark state of the picture, and the contrast is significantly improved, thereby bringing a better viewing experience to the user. In particular, when the liquid crystal display device performs HDR (High-Dynamic Range, high dynamic range image) display, regional dimming makes the brightness range of the picture wider, the low grayscale transition more natural, and the display effect better.

[0043] However, since the pixel sizes of the dimming LCD panel and the display LCD panel are at the same order of magnitude and their spatial periods are relatively close, the image after the dimming LCD panel and the display LCD panel are stacked is prone to produce alternating light and dark stripes, namely moiré. Moiré is a manifestation of the beat principle.

[0044] To improve the moiré, another related technology proposes to design the grid lines extending along the row direction of the dimming liquid crystal panel into a zigzag shape, and use a shielding line with the same shape but larger line width to block it from the side close to the display liquid crystal panel. In this related technology, the grid shape of the dimming liquid crystal panel and the display liquid crystal panel is significantly different, and the human eye is not easily aware of the moiré after stacking, thereby achieving the purpose of improving or eliminating the moiré.

[0045] The inventors of the present application discovered during the research and development process of related products that the above-mentioned related technologies capable of improving moiré patterns can result in colored stripes, i.e., rainbow patterns, being visible on the display screen, which still affects the quality of the picture and reduces the viewing experience of users.

[0046] The embodiments of the present disclosure provide a display panel and a display device to improve rainbow patterns on a screen of the display device and enhance the display quality of the display device.

[0047] like Figure 1 As shown, a display panel 100 provided in an embodiment of the present disclosure includes a dimming liquid crystal panel 2 and a display liquid crystal panel 1 which are stacked, wherein:

[0048] The display liquid crystal panel 1 includes a plurality of sub-pixels 12 arranged in an array and defined by a first grid structure 11;

[0049] The dimming liquid crystal panel 2 is located on the light incident side of the display liquid crystal panel 1, and includes a plurality of dimming pixels 22 arranged in an array and defined by a second grid structure 21. The second grid structure 21 includes a plurality of shading light lines 211 extending in a wave-like manner along the row direction and having the same period. The waveform phase difference of any two adjacent shading light lines 211 is satisfy:

[0050] The structure and working principle of the display liquid crystal panel 1 are similar to the conventional technology and related technology mentioned above, and such description will not be repeated. Figure 1As shown in the enlarged view at Q of FIG. 1 , the first grid structure 11 includes: a plurality of first gate lines 111 extending in the row direction and a plurality of first data lines 112 extending in the column direction, and a shading matrix 113 located on the side of the first gate lines 111 and the first data lines 112 away from the dimming liquid crystal panel 2, the line widths of the first gate lines 111 and the first data lines 112 are both smaller than the line width of the shading matrix 113, and the first gate lines 111 and the first data lines 112 overlap with the shading matrix 113 in a direction perpendicular to the display liquid crystal panel 1. The line width of the gate line is usually larger than the line width of the data line, so the line width of the row-direction extending portion of the shading matrix 113 is generally larger than the line width of the column-direction extending portion.

[0051] It can be understood that, in order to support the grayscale display of the sub-pixel 12, a first thin film transistor (not shown in the figure) is further provided corresponding to each sub-pixel 12, and the first thin film transistor is provided at the intersection of the first gate line 111 and the first data line 112. When observed from the light-emitting side of the display liquid crystal panel 1, the first thin film transistor, the first gate line 111, and the first data line 112 are not visible because they are blocked by the light-shielding matrix 113.

[0052] The dimming liquid crystal panel 2 uses the dimming pixels 22 as control units to achieve regional dimming of the picture. Figure 1 As shown, the dimming pixels 22 of the dimming liquid crystal panel 2 are defined by the second grid structure 21. Figure 1 As shown in the enlarged view at P of the figure, the second grid structure 21, in addition to the above-mentioned shielding line 211, also includes a plurality of second gate lines 212 extending in the row direction and a plurality of second data lines 213 extending in the column direction. The second gate line 212 and the second data line 213 are located on the side of the shielding line 211 away from the display liquid crystal panel 1. The second gate line 212 has a substantially same shape as the shielding line 211, but the line width of the second gate line 212 is less than the line width of the shielding line 211, and the second gate line 212 overlaps the shielding line 211 in a direction perpendicular to the display liquid crystal panel 1. Observed from the light-emitting side of the dimming liquid crystal panel 2, the second gate line 212 is not visible due to being blocked by the shielding line 211. In addition, the line width of the second data line 213 is much smaller than that of the second gate line 212, and basically does not cause light leakage between adjacent dimming pixels, so the second data line 213 does not need to be blocked in the dimming liquid crystal panel 2. The second data line 213 can extend in a straight line shape, or it can extend in a zigzag wave shape as shown in the figure. Designing the second data line 213 to extend in a zigzag wave shape can make the difference between the first grid structure 11 and the second grid structure 21 more obvious, thereby being more conducive to eliminating moiré patterns.

[0053] The main layer structure of the dimming liquid crystal panel 2 includes an array substrate and an opposing substrate that are relatively arranged to form a liquid crystal box, and a liquid crystal located between the array substrate and the opposing substrate, wherein the opposing substrate is closer to the display liquid crystal panel relative to the array substrate. The liquid crystal box structure of the dimming liquid crystal panel 2 is similar to that of the display liquid crystal panel 1, but there is no need to set a filter layer on the dimming liquid crystal panel 2. The above-mentioned second gate line 212 and second data line 213 are arranged on the array substrate. In order to realize the control of the dimming pixel 22, a second thin film transistor (not shown in the figure) is also arranged corresponding to each dimming pixel 22, and the second thin film transistor is arranged at the intersection of the second gate line 212 and the second data line 213. The shading line 211 can be arranged on the opposing substrate.

[0054] The specific shape of the shading line 211 of the dimming liquid crystal panel 2 is not limited. For example, the shading line 211 may extend in a curved wave shape or a broken wave shape as shown in the figure, both of which can achieve a good effect of eliminating moiré.

[0055] According to the principle that the straight line between two points is the shortest, in the present invention Figure 1 In the illustrated embodiment, in order to minimize the overlapping area between the shading line 211 and the sub-pixel 12, thereby increasing the aperture ratio of the sub-pixel 12, the shading line 211 is designed to extend in a zigzag wave shape. The shading line 211 includes a plurality of periodically arranged zigzag units 2110, and each zigzag unit 2110 includes two straight line segments 211a and 211b symmetrically arranged with the column direction as the symmetry axis. In some embodiments of the present disclosure, the two ends of the straight line segment 211a and the two ends of the straight line segment 211b overlap with the first grid structure 11 in a direction perpendicular to the display liquid crystal panel 1. In order to facilitate the design of the second data line 213 and achieve a better effect of eliminating moiré, the intersection points of the two ends of each straight line segment of the shading line 211 and the first grid structure 11 overlap in a direction perpendicular to the display liquid crystal panel 1.

[0056] like Figure 1As shown, each row of sub-pixels 12 of the display liquid crystal panel 1 includes a plurality of pixel units 120, and each pixel unit 120 includes a first sub-pixel 121, a second sub-pixel 122, and a third sub-pixel 123 of different colors and arranged in sequence, and the colors of the sub-pixels in the same column are the same. The resolution of the dimming pixel 22 can be designed according to the fineness requirements of the regional dimming. In the embodiment of the present disclosure, the area of ​​the dimming pixel 22 is not less than the area of ​​the pixel unit 120. For example, in some embodiments, the area of ​​the dimming pixel is approximately four times the area of ​​the pixel unit. In other embodiments, the area of ​​the dimming pixel is approximately 16 times the area of ​​the pixel unit. In yet other embodiments, the area of ​​the dimming pixel is approximately 1.5 times the area of ​​the pixel unit. The area ratio of the dimming pixel to the pixel unit can also be designed to other values, which are not listed here one by one. Taking into account the specific structure and manufacturing errors of the first grid structure 11 and the second grid structure 21, in the present disclosure, the term "approximately" should be understood as within a certain error range.

[0057] like Figure 2a As shown, since the human eye is like a light receiver, different areas of the picture are viewed at different viewing angles. When the human eye views the display panel 100, since the dimming liquid crystal panel 1 and the display liquid crystal panel 2 are stacked with a certain thickness, and different materials have different refractive indices, this causes the pixel patterns of the two to be visually misaligned at different viewing angles, and the greater the difference in viewing angles, the more obvious the visual misalignment.

[0058] like Figure 2b As shown, it is a comparison diagram of the display screen of the related technology in the corresponding area viewed by the human eye from the viewing angle A and the viewing angle B. In the related technology, the phases of adjacent shading lines 211' are the same, that is, the crests of adjacent shading lines 211' are located on the same column line, and the troughs are on the same column line. Taking into account the difference in line width between the row-direction extension part and the column-direction extension part of the shading matrix of the display liquid crystal panel, it can be seen from the figure that under the viewing angle A, the shading line 211' perceived by the human eye in the corresponding area has a larger overlap area with the red first sub-pixel 121' and the blue third sub-pixel 123', and a smaller overlap area with the green second sub-pixel 122', so the overall color of this area is green in the human eye. At viewing angle B, due to the existence of visual dislocation, the shielding line 211' perceived by the human eye in the corresponding area deviates to the left by about the width of a sub-pixel, so that the overlapping area of ​​the shielding line 211' perceived by the human eye with the blue third sub-pixel 123' and the green second sub-pixel 122' is larger, and the overlapping area with the red first sub-pixel 121' is smaller, so the overall color of this area is reddish in the human eye. When the human eye looks at the two areas at the same time, the fluctuation of color temperature in the two areas can be clearly felt, and thus the rainbow pattern can be felt.

[0059] By adopting the technical solution of the embodiment of the present disclosure, since the adjacent shading lines of the second grid structure are designed to be misaligned, the waveforms have a phase difference greater than 0 and less than π, so that the areas of overlap of several adjacent shading lines with the first sub-pixel, the second sub-pixel and the third sub-pixel are basically averaged, and the color temperature of different areas of the display panel is basically consistent. At different viewing angles, although visual misalignment still exists, the human eye will not feel obvious fluctuations in color temperature, so the rainbow pattern is effectively improved.

[0060] Figure 1 In the illustrated embodiment, the nth shielding line overlaps more with the first sub-pixel 121 and the third sub-pixel 123, and less with the second sub-pixel 122; the n+1th shielding line overlaps more with the first sub-pixel 121 and the second sub-pixel 122, and less with the third sub-pixel 123; the n+2th shielding line overlaps more with the second sub-pixel 122 and the third sub-pixel 123, and less with the first sub-pixel 121. The overlapping areas of the three shielding lines with the first sub-pixel 121, the second sub-pixel 122, and the third sub-pixel 123 are substantially the same as a whole. The color temperatures of different areas of the display panel are substantially consistent, thereby effectively improving rainbow patterns.

[0061] In one embodiment of the present disclosure, the absolute value of the waveform phase difference between any two adjacent shielding lines is is a fixed value, such as The phase difference between the waveforms of two adjacent shielding lines is approximately equal to the width of one or two sub-pixels. In this way, the arrangement design of the shielding lines is relatively regular and the manufacturing process is relatively simple and easy to implement.

[0062] like Figure 1 As shown, in this embodiment of the present disclosure, along the column direction, the waveform phase of the nth shading line The waveform phase of the n+1th shading line And the waveform phase of the n+2th shading line satisfy: The areas of the three adjacent shielding lines overlapping with the first sub-pixel 121 , the second sub-pixel 122 , and the third sub-pixel 123 are substantially even.

[0063] like Figure 3 As shown, in another embodiment of the present disclosure, along the column direction, the waveform phase of the nth shading line The waveform phase of the n+1th shading line And the waveform phase of the n+2th shading line satisfy: The areas of the three adjacent shielding lines overlapping with the first sub-pixel 121 , the second sub-pixel 122 , and the third sub-pixel 123 are substantially even.

[0064] like Figure 4 As shown, in another embodiment of the present disclosure, along the column direction, the waveform phase of the nth shading line The waveform phase of the n+1th shading line And the waveform phase of the n+2th shading line satisfy: The overall overlapping area of ​​the two adjacent shielding lines with the first sub-pixel 121, the second sub-pixel 122 and the third sub-pixel 123 is smaller than that of the related technology, which can improve the rainbow pattern to a certain extent.

[0065] like Figure 5 As shown, in yet another embodiment of the present disclosure, along the column direction, the waveform phase of the nth shading line The waveform phase of the n+1th shading line And the waveform phase of the n+2th shading line satisfy: The overall overlapping area of ​​the two adjacent shielding lines with the first sub-pixel 121, the second sub-pixel 122 and the third sub-pixel 123 is smaller than that of the related technology, which can improve the rainbow pattern to a certain extent.

[0066] like Figure 6 As shown, in yet another embodiment of the present disclosure, along the column direction, the waveform phase of the nth shading line The waveform phase of the n+1th shading line The waveform phase of the n+2th shading line And the waveform phase of the n+3th shading line satisfy: The areas in which the four adjacent shielding light lines overlap with the first sub-pixel 121 , the second sub-pixel 122 , and the third sub-pixel 123 are substantially even.

[0067] It is worth mentioning that in some other embodiments of the present disclosure, the absolute value of the waveform phase difference between any two adjacent shielding lines is It doesn't have to be exactly the same.

[0068] like Figure 7 As shown, in yet another embodiment of the present disclosure, along the column direction, the waveform phase of the nth shading line The waveform phase of the n+1th shading line And the waveform phase of the n+2th shading line satisfy (or The areas of the three adjacent shielding lines overlapping with the first sub-pixel 121, the second sub-pixel 122 and the third sub-pixel 123 are substantially even.

[0069] The inventors of this application use Figure 1 and Figure 2b The color temperature of the two 65-inch display panel products was simulated respectively, and the comparison results are as follows: Figure 8 As shown, curve 01 is Figure 2b The color temperature simulation curve of the related art is shown, and curve 02 is the color temperature simulation curve of the present invention. Figure 1 Color temperature simulation curve of the embodiment shown. It can be seen that as the viewing angle of the human eye changes, the color temperature curve of the display panel of the related technology fluctuates significantly, and the color temperature fluctuation amplitude is about 3000k, while the color temperature curve of the display panel of the embodiment of the present disclosure is relatively gentle, and the color temperature fluctuation amplitude is about 300k. The fluctuation of the color temperature of the picture can directly reflect the presentation of the rainbow pattern. Compared with the related technology, the color temperature fluctuation amplitude of the display panel of the embodiment of the present disclosure is smaller, and the human eye basically does not feel the rainbow pattern. Therefore, the display picture quality is significantly improved.

[0070] In one embodiment of the present disclosure, Figure 9a As shown, the dimming liquid crystal panel 2 and the display liquid crystal panel 1 are bonded by transparent optical adhesive 3, and the manufacturing process is relatively simple and easy to repair. Figure 9b As shown, the dimming liquid crystal panel 2 and the display liquid crystal panel 1 may also share the same manufacturing substrate on the adjacent side, thereby facilitating the reduction of the thickness of the display panel and the reduction of the manufacturing cost.

[0071] The embodiments of the present disclosure also provide a display device, including a display panel of any of the above embodiments. The display device can dim the finer areas of the picture, with excellent contrast, and effectively improve the moiré and rainbow patterns of the picture. Therefore, the picture quality is high, thereby significantly improving the user experience. The specific product type of the display device is not limited, for example, it can be a monitor, a tablet computer, a laptop computer, a television, an ATM device, an electronic paper, a display screen, etc.

[0072] Although some specific embodiments of the present disclosure have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present disclosure. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present disclosure. The scope of the present disclosure is defined by the appended claims.

Claims

1. A display panel, comprising: A display liquid crystal panel, comprising a plurality of sub-pixels arranged in an array and defined by a first grid structure; a dimming liquid crystal panel, located at the light incident side of the display liquid crystal panel and stacked with the display liquid crystal panel, the dimming liquid crystal panel comprising a plurality of dimming pixels arranged in an array and defined by a second grid structure; Among them, the second grid structure includes a plurality of shading lines extending in a waveform along the row direction and with the same period, a plurality of second gate lines extending along the row direction, and a plurality of second data lines extending along the column direction, the waveform phase difference Δφ between any two adjacent shading lines satisfies: 0<|Δφ|<π, and the line width of the second data line is smaller than the line width of the second gate line.

2. The display panel according to claim 1, wherein: The shading line extends in a curved wave shape or a folded wave shape.

3. The display panel according to claim 1, wherein: The shading line extends in a zigzag wave shape and includes a plurality of periodically arranged zigzag units, each of which includes two straight line segments symmetrically arranged with the column direction as a symmetry axis.

4. The display panel according to claim 3, wherein: Both ends of the straight line segment overlap with the first grid structure in a direction perpendicular to the display liquid crystal panel.

5. The display panel according to claim 3, wherein: Both ends of the straight line segment overlap with intersection points of the first grid structure in a direction perpendicular to the display liquid crystal panel.

6. The display panel according to any one of claims 1 to 5, wherein: Along the column direction, the waveform phase of the nth shading line is φ n 、The waveform phase of the n+1th shading line φ n+1 , and the waveform phase φ of the n+2th shading line n+2 ,satisfy: f n+1 -f n =φ n+2 -f n+1 =Δf; or f n+1 -f n =Δφ,φ n+2 -f n+1 =-Δφ; or f n+1 -f n =Δφ,φ n+2 -f n+1 =-2Δφ; or f n+1 -f n =Δφ,φ n+2 -f n+1 =-Δφ / 2; Wherein, n is a positive integer.

7. The display panel according to claim 6, wherein: Each row of sub-pixels includes a plurality of pixel units, each of the pixel units includes a first sub-pixel, a second sub-pixel and a third sub-pixel of different colors and arranged in sequence, and the sub-pixels in the same column have the same color; The area of ​​the dimming pixel is not less than the area of ​​the pixel unit.

8. The display panel according to claim 7, wherein: The area of ​​the dimming pixel is approximately four times the area of ​​the pixel unit; The absolute value of the waveform phase difference |Δφ| between any two adjacent shading lines is π / 3; or, the absolute value of the waveform phase difference |Δφ| between any two adjacent shading lines is 2π / 3.

9. The display panel according to claim 1, wherein: The first grid structure includes: a plurality of first gate lines extending in a row direction and a plurality of first data lines extending in a column direction, and a shading matrix located on a side of the first gate lines and the first data lines away from the dimming liquid crystal panel, the line widths of the first gate lines and the first data lines are both smaller than the line width of the shading matrix, and the first gate lines and the first data lines overlap with the shading matrix in a direction perpendicular to the display liquid crystal panel.

10. The display panel according to claim 1, wherein: The second gate line and the second data line are located on the side of the shading line away from the display liquid crystal panel, the line width of the second gate line is smaller than the line width of the shading line, and the second gate line overlaps the shading line in a direction perpendicular to the display liquid crystal panel.

11. The display panel according to claim 10, wherein: The second data line extends in a zigzag wave shape.

12. The display panel according to claim 1, wherein: The dimming liquid crystal panel and the display liquid crystal panel are bonded by transparent optical adhesive; or, the dimming liquid crystal panel and the display liquid crystal panel share the same manufacturing substrate on the adjacent side.

13. A display device comprising the display panel according to any one of claims 1 to 12.

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