CN112327549B - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN112327549B CN112327549B CN202011226373.2A CN202011226373A CN112327549B CN 112327549 B CN112327549 B CN 112327549B CN 202011226373 A CN202011226373 A CN 202011226373A CN 112327549 B CN112327549 B CN 112327549B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a display panel and a display device, wherein the display panel comprises a liquid crystal panel and a light control panel, the liquid crystal panel is provided with a plurality of first scanning lines, and the first scanning lines are arranged in parallel at intervals; the light control panel is stacked with the liquid crystal panel and is used for controlling light entering the liquid crystal panel; the light control panel is provided with a plurality of second scanning lines which are arranged in parallel at intervals; wherein, the orthographic projection of each first scanning line on the light control panel is perpendicular to the plurality of second scanning lines. The display panel and the display device provided by the invention can improve the Moire phenomenon generated when the display panels are stacked.
Description
Technical Field
The present invention relates to the field of liquid crystal display devices, and in particular, to a display panel and a display device.
Background
In order to improve the contrast of the display panel, a scheme of stacking two display panels and controlling the amount of light entering and the light entering area of the backlight entering the other display panel through one display panel is adopted. When two display panels are stacked, because of reasons such as process errors, the scanning lines and lines on the two display panels are staggered and cannot be completely overlapped when being overlapped, and thus when the two display panels are used for displaying, the displayed picture has obvious moire lines, namely, obvious light and shade alternate lines, and visual experience is influenced.
Disclosure of Invention
The invention provides a display panel and a display device, and aims to improve the moire phenomenon generated when the display panels are stacked.
To achieve the above object, the present invention provides a display panel, including:
the liquid crystal display panel is provided with a plurality of first scanning lines which are arranged in parallel at intervals;
the light control panel is stacked with the liquid crystal panel and is used for controlling light entering the liquid crystal panel; the light control panel is provided with a plurality of second scanning lines which are arranged in parallel at intervals;
wherein, the orthographic projection of each first scanning line on the light control panel is vertical to the plurality of second scanning lines.
In an embodiment of the invention, the liquid crystal panel is further provided with a plurality of first data lines arranged in parallel and at intervals, each of the first data lines is orthogonal to the plurality of first scan lines, and the plurality of first data lines intersect the plurality of first scan lines and define a plurality of sub-pixel units;
the light control panel is provided with a plurality of second data lines which are arranged in parallel and are arranged at intervals, each second data line is orthogonal to the plurality of second scanning lines, and the plurality of second data lines are intersected with the plurality of second scanning lines and define a plurality of light control units;
the orthographic projection of each first scanning line on the light control panel is superposed with one second data line, and the orthographic projection of each second scanning line on the liquid crystal panel is superposed with one first data line.
In an embodiment of the invention, the liquid crystal panel is further provided with a plurality of first light-shielding strips, and each first light-shielding strip is arranged corresponding to each first scanning line and extends along an extending direction of one first scanning line;
the light control panel is further provided with a plurality of second shading strips, each second shading strip is arranged corresponding to each second data line and extends along the extending direction of one second data line;
the orthographic projection of each first shading strip on the light control panel shades one second shading strip.
In an embodiment of the invention, a width of the first light shielding strip along the extending direction of the first data line is equal to a width of the second light shielding strip along the extending direction of the second scan line.
In an embodiment of the invention, the liquid crystal panel is further provided with a plurality of third light-shielding strips, each third light-shielding strip is arranged corresponding to each first data line and extends along an extending direction of one first data line;
the light control panel is further provided with a plurality of fourth light shading strips, each fourth light shading strip is arranged corresponding to each second scanning line and extends along the extending direction of one second scanning line;
the orthographic projection of each fourth shading strip on the liquid crystal panel shields one third shading strip.
In an embodiment of the invention, the width of the first light-shielding strip is defined as d1, the width of the third light-shielding strip is defined as d3, and d3 < d1;
and/or defining the width of the second shading band as d2, and defining the width of the fourth shading band as d4, wherein d2 is less than d4.
In an embodiment of the invention, the first light-shielding tape is a black matrix layer;
and/or the second shading band is a black matrix layer;
and/or the third shading band is a black matrix layer;
and/or, the fourth shading band is a black matrix layer.
In an embodiment of the invention, a plurality of the sub-pixel unit arrays are arranged on the liquid crystal panel, and a plurality of the light control unit arrays are arranged on the light control panel;
defining the length of each light control unit along the second data line direction to be L1, and defining the length of each sub-pixel unit along the first scanning line direction to be L2, wherein L1= M × L2, and M is a positive integer;
and/or defining the length of each light control unit along the second scanning line direction as L3, defining the length of each sub-pixel unit along the first data line direction as L4, and L3= N × L4, where N is a positive integer.
In an embodiment of the invention, the width of the first scan line is defined as d5, the width of the second data line is defined as d6, and d6 < d5;
and/or defining the width of the second scanning line as d7, defining the width of the first data line as d8, and d8 < d7.
In addition, the invention also provides a display device which comprises the display panel.
The technical scheme of the invention is provided with a liquid crystal panel and a light control panel which are arranged in a stacked mode, wherein the liquid crystal panel comprises a plurality of first scanning lines which are arranged in parallel; the light control panel comprises a plurality of second scanning lines which are arranged in parallel, the orthographic projection of each scanning line on the light control panel is vertical to the second scanning lines, and the light control panel is used for controlling the light entering of the liquid crystal panel. Therefore, orthographic projections of the first scanning lines on the light control panel are orthogonal to the second scanning lines to form a plurality of square grid areas, the first scanning lines and the second scanning lines cannot be staggered when being overlapped, and the Moire patterns with alternating light and shade visible to naked eyes cannot appear when backlight is displayed through the square grid areas.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a display panel according to the present invention;
FIG. 2 is a schematic diagram of a portion of a liquid crystal panel according to the present invention;
fig. 3 is a schematic view of a portion of a light control panel according to the present invention;
FIG. 4 is a schematic structural diagram of a liquid crystal panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a light control panel according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of the liquid crystal panel in FIG. 2 and the light control panel in FIG. 3 after being superimposed in the light path;
FIG. 7 is a schematic structural diagram of a liquid crystal panel according to another embodiment of the present invention;
fig. 8 is a schematic view of a light control panel according to another embodiment of the present invention;
fig. 9 is a schematic structural diagram of the liquid crystal panel in fig. 7 and the light control panel in fig. 8 after being superimposed in the light path.
The reference numbers indicate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | Liquid crystal panel | 2 | |
| 11 | |
21 | Second shadeBelt |
| 12 | |
22 | Fourth light- |
| 13 | |
23 | Light control unit |
| 1a | A |
2a | The second scanning line |
| 1b | |
2b | Second data line |
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, descriptions such as "first", "second", etc. in the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. Throughout this text, "and/or" means including three juxtaposed protocols, taking "a and/or B as an example," including the a protocol, or the B protocol, or both a and B satisfied protocol. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a display panel for displaying images.
In the embodiment of the present invention, as shown in fig. 2 and fig. 3, the display panel includes a liquid crystal panel 1 and a light control panel 2, the liquid crystal panel 1 is provided with a plurality of first scanning lines 1a, and the plurality of first scanning lines 1a are arranged in parallel and at intervals; the light control panel 2 is stacked with the liquid crystal panel 1, and the light control panel 2 is used for controlling light entering the liquid crystal panel 1; the light control panel 2 is provided with a plurality of second scanning lines 2a, and the plurality of second scanning lines 2a are arranged in parallel at intervals; the orthographic projection of each first scanning line 1a on the light control panel 2 is perpendicular to the plurality of second scanning lines 2 a.
In this embodiment, the liquid crystal panel 1 and the light control panel 2 may be liquid crystal display panels, the liquid crystal panel 1 and the light control panel 2 are stacked, the liquid crystal panel 1 is used for displaying images, a backlight module is disposed on a side of the light control panel 2 opposite to the liquid crystal panel 1, the backlight module may provide backlight to the light control panel 2, and the light control panel 2 is used for controlling an area where the backlight enters the liquid crystal panel 1, for example, the light control panel 2 may control whether the backlight enters a certain pixel unit on the liquid crystal panel 1, so as to determine whether the pixel unit can perform color expression.
The first scan line 1a may be disposed on the array substrate of the liquid crystal panel 1, and the first scan line 1a is used for controlling the expression of pixels on the liquid crystal panel 1; the second scan lines 2a may be disposed on the array substrate of the light control panel 2, and the second scan lines 2a are used for controlling the expression of the pixels on the light control panel 2. To better explain the present embodiment, referring to fig. 1, when the liquid crystal panel 1 and the light control panel 2 are stacked, the first scan line 1a on the liquid crystal panel 1 and the second scan line 2a on the light control panel 2 are overlapped in the light path direction, an included angle α is formed between the first scan line 1a and the second scan line 2a, and if the distribution period of the first scan line 1a is defined as P1, the distribution period of the second scan line 2a is defined as P2, and the distribution period of the bright stripes of the moire fringes formed by the interference of the first scan line 1a and the second scan line 2a in the light path direction is defined as Pm, the following calculation formula can be obtained according to the optical principle of the moire effect:
the unit of P1, P2, and Pm in the above calculation formula is generally μm, for example, the distribution period P1 of the first scan line is the distance between two adjacent first scan lines 1a, P1=300 μm, and P2 and Pm can be explained by the same method as P2 and Pm according to the above explanation of P1, and details are not repeated here. From the above calculation formula, when the first scanning line 1a and the second scanning line 2a are located therebetweenWhen the included angle α is 0 degrees, the above formula can be simplified as follows:
if the values of P1 and P2 are the same or very close to each other, pm approaches infinity, that is, the distance between two adjacent dark or bright fringes formed by the interference of the first scanning line 1a and the second scanning line 2a on the optical path is infinity, and the molar effect is invisible to naked eyes after the display, that is, the molar effect is eliminated by phase change, so that a relatively ideal display effect is realized. When α is 90 degrees, the above formula can be simplified as:
if P1 and P2 are the same or very close to each other, pm approaches infinity, and the moire effect caused by the interference of the first scanning line 1a and the second scanning line 2a on the optical path can be eliminated by changing the phase. However, limited by the manufacturing error of the liquid crystal panel 1 and the light control panel 2, the first scan line 1a and the second scan line 2a cannot be completely overlapped on the light path, and the included angle α is not equal to 0 °, such as α =0.1 °, at this time, pm ≈ 17.2cm can be calculated by the above formula, that is, a relatively obvious moire effect is correspondingly generated by a slight overlapping deviation of the first scan line 1a and the second scan line 2a on the light path, and the moire effect is visible to naked eyes, which greatly affects the display effect of the display panel.
In the scheme of this embodiment, the first scanning line 1a of the liquid crystal panel 1 and the second scanning line 2a of the light control panel 2 are set to be in a mutually perpendicular state in the light path direction, the requirement on the manufacturing process when the liquid crystal panel 1 and the light control panel 2 are stacked is not high, the implementation is easy, and meanwhile, the distribution period of the moire fringes in the display panel tends to be infinite, so that the moire effect of the display panel is eliminated in a phase-changing manner, the visible moire fringes cannot appear in the display picture of the display panel, and the display effect of the display panel is favorably improved.
In an embodiment of the invention, as shown in fig. 2 and fig. 3, the liquid crystal panel 1 further has a plurality of first data lines 1b arranged in parallel and at intervals, each first data line 1b is orthogonal to the plurality of first scan lines 1a, and the plurality of first data lines 1b intersect with the plurality of first scan lines 1a and define a plurality of sub-pixel units 13; the light control panel 2 is provided with a plurality of second data lines 2b arranged in parallel and at intervals, each second data line 2b is orthogonal to the plurality of second scanning lines 2a, and the plurality of second data lines 2b intersect the plurality of second scanning lines 2a and define a plurality of light control units 23; the orthographic projection of each first scanning line 1a on the light control panel 2 is coincided with a second data line 2b, and the orthographic projection of each second scanning line 2a on the liquid crystal panel 1 is coincided with a first data line 1b.
In the present embodiment, the plurality of first data lines 1b and the plurality of first scan lines 1a cooperate to control the expression of the colors of the plurality of sub-pixel units 13, each sub-pixel unit 13 may be one of a red pixel, a green pixel, and a blue pixel, and the sub-pixel unit 13 is used for displaying the corresponding color. Each first data line 1b extends along the Y-axis direction, and each first scan line 1a extends along the X-axis direction, so that the plurality of first scan lines 1a and the plurality of first data lines 1b are criss-cross, and define a plurality of rectangular sub-pixel units 13.
The plurality of second data lines 2b and the plurality of second scan lines 2a cooperate to control the color expression of the plurality of light control units 23, each light control unit 23 may be one of a red pixel, a green pixel, a blue pixel and a white pixel, and the light control unit 23 is configured to control whether backlight enters the corresponding sub-pixel unit 13, so as to control the color expression of the sub-pixel unit 13 on the liquid crystal panel 1, and realize the display of various pictures with different contrast ratios on the display panel. Each second data line 2b extends along the X-axis direction, each second scan line 2a extends along the Y-axis direction, and the plurality of second scan lines 2a and the plurality of second data lines 2b are criss-crossed to define a plurality of rectangular light control units 23, each light control unit 23 may be disposed corresponding to each sub-pixel unit 13 or disposed corresponding to a plurality of sub-pixel units 13, that is, each light control unit 23 may be used to control whether the backlight enters into a single sub-pixel unit 13, so as to control the color expression of the single sub-pixel unit 13; and the backlight control module can also be used for controlling whether the backlight enters the plurality of sub-pixel units 13 at the same time, so that the color expression of the plurality of sub-pixel units 13 is controlled, the contrast of the display panel can be flexibly controlled, and the display effect of the display panel can be improved.
In an embodiment of the present invention, referring to fig. 4 to fig. 6 and being combined with fig. 2 and fig. 3, the liquid crystal panel 1 further has a plurality of first light-shielding bands 11, each first light-shielding band 11 is disposed corresponding to each first scan line 1a and extends along an extending direction of one first scan line 1 a; the light control panel 2 is further provided with a plurality of second light-shielding strips 21, each second light-shielding strip 21 is disposed corresponding to each second data line 2b and extends along the extending direction of one second data line 2b; the orthographic projection of each first shading band 11 on the light control panel 2 shades a second shading band 21.
In the present embodiment, the first light-shielding tapes 11 are used for shielding light, and each of the first light-shielding tapes 11 completely shields one of the first scan lines 1a in the optical path direction, so as to prevent light leakage between the sub-pixel units 13 through the plurality of first light-shielding tapes 11. For example, the plurality of first scan lines 1a and the plurality of first data lines 1b may be disposed on an array substrate of the liquid crystal panel 1, the plurality of first light-shielding tapes 11 may be disposed on a color film substrate of the liquid crystal panel 1, and each first light-shielding tape 11 is disposed opposite to each first scan line 1 a.
The second light-shielding tapes 21 are used for shielding light, and each second light-shielding tape 21 completely shields one second scanning line 2a in the optical path direction to avoid light leakage among the plurality of light control units 23 through the plurality of second light-shielding tapes 21. For example, the plurality of second scan lines 2a and the plurality of second data lines 2b may be disposed on the array substrate of the light control panel 2, the plurality of second light-shielding tapes 21 may be disposed on the color filter substrate of the light control panel 2, and each of the second light-shielding tapes 21 is disposed opposite to each of the second scan lines 2 a.
When the liquid crystal panel 1 and the light control panel 2 are stacked, each first light-shielding tape 11 completely shields one second light-shielding tape 21 in the optical path direction, i.e. an orthographic projection of each first light-shielding tape 11 on the light control panel 2 will shield one second light-shielding tape 21. In the optical path of the display panel, the plurality of second light-shielding bands 21 are correspondingly shielded by the plurality of first light-shielding bands 11 one by one, and the moire effect caused by the interference due to the dislocation when the plurality of first light-shielding bands 11 and the plurality of second light-shielding bands 21 are overlapped in the optical path is avoided, so that the generation of moire fringes in the display picture of the display panel is further avoided.
In an embodiment of the present invention, referring to fig. 4 to 6 in combination with fig. 2 and 3, a width of the first light-shielding tape 11 along the extending direction of the first data line 1b is equal to a width of the second light-shielding tape 21 along the extending direction of the second scan line 2 a.
In the embodiment, the first light-shielding tapes 11 and the second light-shielding tapes 21 are arranged in a strip shape, the widths of the first light-shielding tapes 11 and the second light-shielding tapes 21 are equal, and each of the first light-shielding tapes 11 and each of the second light-shielding tapes 21 are overlapped in the light path when the liquid crystal panel 1 and the light control panel 2 are stacked. The width of the first light-shielding tape 11 along the extending direction of the first data line 1b is equal to the width of the second light-shielding tape 21 along the extending direction of the second scan line 2a, so that the first light-shielding tape 11 and the second light-shielding tape 21 are manufactured by the same manufacturing procedure, the manufacturing procedure can be saved, the consistency of the first light-shielding tape 11 and the second light-shielding tape 21 during manufacturing is favorably improved, the error of the first light-shielding tape 11 and the second light-shielding tape 21 during manufacturing is reduced, and the display effect of the display panel is further improved.
In an embodiment of the invention, referring to fig. 4 to fig. 6 and being combined with fig. 2 and fig. 3, the liquid crystal panel 1 is further provided with a plurality of third light-shielding tapes 12, each third light-shielding tape 12 is disposed corresponding to each first data line 1b and extends along an extending direction of one first data line 1 b; the light control panel 2 is further provided with a plurality of fourth light-shielding strips 22, each fourth light-shielding strip 22 is disposed corresponding to each second scanning line 2a and extends along the extending direction of one second scanning line 2 a; the orthographic projection of each fourth light-shielding tape 22 on the liquid crystal panel 1 shields a third light-shielding tape 12.
In the present embodiment, the third light-shielding tapes 12 are used for shielding light, and each of the third light-shielding tapes 12 completely shields one of the first data lines 1b in the optical path direction to prevent light leakage between the plurality of sub-pixel units 13 through the plurality of first light-shielding tapes 11 and the plurality of third light-shielding tapes 12. For example, the plurality of first data lines 1b and the plurality of first data lines 1b may be disposed on an array substrate of the liquid crystal panel 1, the plurality of first light-shielding tapes 11 and the plurality of third light-shielding tapes 12 may be disposed on a color film substrate of the liquid crystal panel 1, each of the first light-shielding tapes 11 is disposed opposite to each of the first scan lines 1a, and each of the third light-shielding tapes 12 is disposed opposite to each of the first data lines 1b.
The fourth light-shielding tapes 22 are used for shielding light, and each fourth light-shielding tape 22 completely shields one second scanning line 2a in the optical path direction, so as to avoid light leakage between the plurality of light control units 23 through the plurality of fourth light-shielding tapes 22 and the plurality of second light-shielding tapes 21. For example, the plurality of second scan lines 2a and the plurality of second data lines 2b may be disposed on the array substrate of the light control panel 2, the plurality of second light-shielding tapes 21 and the plurality of fourth light-shielding tapes 22 may be disposed on the color film substrate of the light control panel 2, each of the second light-shielding tapes 21 is disposed opposite to each of the second data lines 2b, and each of the fourth light-shielding tapes 22 is disposed opposite to each of the second scan lines 2 a.
When the liquid crystal panel 1 and the light control panel 2 are stacked, each third light-shielding tape 12 completely shields a fourth light-shielding tape 22 in the light path direction, i.e. an orthographic projection of each fourth light-shielding tape 22 on the liquid crystal panel 1 will shield one third light-shielding tape 12. In the optical path of the display panel, the plurality of third light-shielding strips 12 are correspondingly shielded by the plurality of fourth light-shielding strips 22 one by one, and the moire effect caused by the interference due to the dislocation when the plurality of third light-shielding strips 12 and the plurality of fourth light-shielding strips 22 are overlapped in the optical path is avoided, so that the generation of moire fringes in the display picture of the display panel is further avoided.
In an embodiment of the invention, as shown in fig. 4 to fig. 6, the width of the first light-shielding tape 11 is defined as d1, the width of the third light-shielding tape 12 is defined as d3, and d3 < d1; and/or, the width of the second light-shielding tape 21 is defined as d2, and the width of the fourth light-shielding tape 22 is defined as d4, where d2 < d4.
In this embodiment, the width of the third light-shielding strip 12 is smaller than the width of the first light-shielding strip 11, and/or the width of the second light-shielding strip 21 is smaller than the width of the fourth light-shielding strip 22, so that the narrower the width of the third light-shielding strip 12 is, the wider the width of the first light-shielding strip 11 is, the smaller the influence on the moir e effect of the display panel is, and the influence of the third light-shielding strip 12 on the moir e pattern of the final display image of the display panel can be ignored, and the influence of the first light-shielding strip 11 on the moir effect of the display panel is considered. Similarly, for the light control panel 2, only the influence of the fourth light-shielding tape 22 on the molar effect of the present display panel needs to be considered. Therefore, in the optical path structure of the display panel, the first light-shielding strip 11 and the fourth light-shielding strip 22 are approximately vertically overlapped in the optical path direction, so that the distribution period of the moire fringes displayed by the display panel can be greatly increased, the distance between two adjacent bright fringes or dark fringes in the moire fringes approaches to infinity, the moire fringes in the display picture of the display panel are invisible to naked eyes, the moire effect of the display panel is eliminated in a phase-changing manner, and the display effect of the display panel is improved.
In an embodiment of the invention, as shown in fig. 4 to 6, the first light-shielding tape 11 is a black matrix layer; and/or, the second light-shielding tape 21 is a black matrix layer; and/or, the third light-shielding tape 12 is a black matrix layer; and/or, the fourth light-shielding tape 22 is a black matrix layer.
In the present embodiment, the black matrix layer is a light-opaque layer for preventing light leakage; the black matrix layer can be formed by coating a color resist material on a color film substrate, and then performing exposure, development and other steps. The first light-shielding strips 11, the second light-shielding strips 21, the third light-shielding strips 12 and the fourth light-shielding strips 22 are arranged as black matrix layers, so that the controllability of the thickness, the width and the length of the first light-shielding strips 11, the second light-shielding strips 21, the third light-shielding strips 12 and the fourth light-shielding strips 22 can be enhanced, and the good light-shielding effect of the first light-shielding strips 11, the second light-shielding strips 21, the third light-shielding strips 12 and the fourth light-shielding strips 22 can be ensured.
In an embodiment of the invention, referring to fig. 4 to 6 and fig. 7 to 9, a plurality of sub-pixel units 13 are arranged in an array on the liquid crystal panel 1, and a plurality of light control units 23 are arranged in an array on the light control panel 2; defining the length of each light control unit 23 along the second data line 2b as L1, defining the length of each sub-pixel unit 13 along the first scan line 1a as L2, and L1= M × L2, where M is a positive integer; and/or, a length of each light control unit 23 along the second scan line 2a is defined as L3, a length of each sub-pixel unit 13 along the first data line 1b is defined as L4, and L3= N × L4, where N is a positive integer.
In the present embodiment, the plurality of sub-pixel units 13 are arranged in an array, and the plurality of light control units 23 are arranged in a column. The length of each light control unit 23 along the second data line 2b is a positive integer multiple of the length of each sub-pixel unit 13 along the first scan line 1 a; and/or, the length of each light control unit 23 along the second scan line 2a is a positive integer multiple of the length of each sub-pixel unit 13 along the first data line 1b. Each light control unit 23 can correspondingly control the expression in one or more sub-pixel units 13 in the optical path structure of the display panel, and generally, three sub-pixels respectively displaying three colors of red, green and blue can form one pixel unit, and at this time, one light control unit 23 can control the light entering and displaying of one sub-pixel unit 13, or control the light entering and displaying of one pixel unit, so that the light entering of the liquid crystal panel 1 can be more flexibly controlled through the light control panel 2 according to the actual display requirements, and further, the liquid crystal panel 1 is controlled to display the picture with multiple contrasts.
In an embodiment of the invention, as shown in fig. 2 and fig. 3, the width of the first scan line 1a is defined as d5, the width of the second data line 2b is defined as d6, and d6 < d5; and/or, the width of the second scan line 2a is defined as d7, the width of the first data line 1b is defined as d8, and d8 < d7.
In the present embodiment, the width of the first scan line 1a is greater than the width of the second data line 2b, so that when the liquid crystal panel 1 and the light control panel 2 are stacked, the first scan line 1a can shield the second data line 2b on the light path; the width of the second scan line 2a is greater than the width of the first data line 1b, so that the second scan line 2a can shield the first data line 1b on the light path when the liquid crystal panel 1 and the light control panel 2 are stacked. Therefore, the size of the moire effect formed by stacking the liquid crystal panel 1 and the light control panel 2 depends on the first scan line 1a and the second scan line 2a, and the orthographic projection of the first scan line 1a on the light control panel 2 is perpendicular to the plurality of second scan lines 2a, at this time, the distribution period of the moire fringes generated by the interference of the first scan line 1a and the second scan line 2a in the light path is infinite, the moire fringes visible to the naked eye do not appear in the display picture, and the moire effect of the display panel is eliminated by phase change.
The present invention further provides a display device, which includes the display panel in the foregoing embodiments, and the specific structure of the display panel refers to the foregoing embodiments, and since the display device adopts all technical solutions of all the foregoing embodiments, the display device at least has all beneficial effects brought by the technical solutions of the foregoing embodiments, and details are not repeated here.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, which are directly or indirectly applied to the present invention, are included in the scope of the present invention.
Claims (6)
1. A display panel, comprising:
the liquid crystal display panel is provided with a plurality of first scanning lines which are arranged in parallel at intervals;
the light control panel is stacked with the liquid crystal panel and is used for controlling light entering the liquid crystal panel; the light control panel is provided with a plurality of second scanning lines which are arranged in parallel at intervals;
wherein, the orthographic projection of each first scanning line on the light control panel is vertical to the plurality of second scanning lines;
the liquid crystal panel is also provided with a plurality of first data lines which are arranged in parallel and at intervals, each first data line is orthogonal to the plurality of first scanning lines, and the plurality of first data lines are intersected with the plurality of first scanning lines and define a plurality of sub-pixel units;
the light control panel is provided with a plurality of second data lines which are arranged in parallel and are arranged at intervals, each second data line is orthogonal to the plurality of second scanning lines, and the plurality of second data lines are intersected with the plurality of second scanning lines and define a plurality of light control units;
the orthographic projection of each first scanning line on the light control panel is superposed with one second data line, and the orthographic projection of each second scanning line on the liquid crystal panel is superposed with one first data line;
the liquid crystal panel is also provided with a plurality of first shading strips and a plurality of third shading strips, and each first shading strip is arranged corresponding to each first scanning line and extends along the extending direction of one first scanning line; each third shading band is arranged corresponding to each first data line and extends along the extending direction of the first data line;
the light control panel is further provided with a plurality of second light shading strips and a plurality of fourth light shading strips, each second light shading strip is arranged corresponding to each second data line and extends along the extending direction of one second data line; each fourth shading band is arranged corresponding to each second scanning line and extends along the extending direction of one second scanning line;
the orthographic projection of each first shading strip on the light control panel shields one second shading strip; the orthographic projection of each fourth shading strip on the liquid crystal panel shields one third shading strip;
defining the width of the first scanning line as d5, defining the width of the second data line as d6, wherein d6 is less than d5; the width of the second scanning line is defined as d7, the width of the first data line is defined as d8, and d8 is less than d7.
2. The display panel according to claim 1, wherein a width of the first light shielding stripe in the extending direction of the first data line is equal to a width of the second light shielding stripe in the extending direction of the second scan line.
3. The display panel according to claim 1, wherein a width of the first light-shielding tape is defined as d1, a width of the third light-shielding tape is defined as d3, and d3 < d1;
and/or defining the width of the second shading band as d2, and defining the width of the fourth shading band as d4, wherein d2 is less than d4.
4. The display panel according to claim 1, wherein the first light-shielding tape is a black matrix layer;
and/or the second shading band is a black matrix layer;
and/or the third shading band is a black matrix layer;
and/or, the fourth shading band is a black matrix layer.
5. The display panel according to any one of claims 1 to 4, wherein a plurality of the sub-pixel cell arrays are arranged on the liquid crystal panel, and a plurality of the light control cell arrays are arranged on the light control panel;
defining the length of each light control unit along the second data line direction to be L1, and defining the length of each sub-pixel unit along the first scanning line direction to be L2, wherein L1= M × L2, and M is a positive integer;
and/or defining the length of each light control unit along the second scanning line direction as L3, defining the length of each sub-pixel unit along the first data line direction as L4, and L3= N × L4, where N is a positive integer.
6. A display device characterized by comprising the display panel according to any one of claims 1 to 5.
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