Display panel, manufacturing method and display device

Abstract

The present disclosure relates to a display panel, a preparation method and a display device, wherein the display panel comprises an array substrate and a first color filter substrate arranged opposite to each other, wherein the first color filter substrate comprises a first color resist layer facing the array substrate, wherein the first color resist layer comprises a plurality of first color resist units distributed in an array, and the display panel further comprises: a second color filter substrate arranged on a side of the first color filter substrate away from the array substrate, wherein the second color filter substrate comprises a second color resist layer facing the first color filter substrate, wherein the second color resist layer comprises a plurality of second color resist units distributed in an array, wherein the orthographic projection of the first color resist unit on the array substrate partially overlaps with the orthographic projection of the second color resist unit of the same color on the array substrate. The technical solution of the present disclosure can improve the display effect of three-dimensional images.

Description

Technical Field

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

[0002] There is a distance between the left eye and the right eye of the human body, which causes a slight difference in the viewing angles of the two eyes. The slight difference makes the image observed by the left eye and the image observed by the right eye slightly different, thereby forming a stereoscopic image in the human brain.

[0003] With the rapid development of display technology, three-dimensional stereoscopic display is gradually entering the market. In the related technology, stereoscopic display technology is divided into glasses type and naked-eye type. Glasses type stereoscopic display technology uses chromatic aberration or polarization type stereoscopic display technology to display three-dimensional images; however, in glasses type stereoscopic display technology, users must wear professional glasses to display three-dimensional images, and the usage scenarios are relatively limited. Naked-eye stereoscopic display technology mainly uses spectroscopic devices such as grating structures or cylindrical lens structures as the basis, so that the light passing through the spectroscopic device is deflected, causing a visual illusion to the user, thereby forming a three-dimensional image. However, in naked-eye stereoscopic display technology, the spectroscopic device has the problem of poor clarity, which makes it easy to cause visual interference to the user when the display device using this technology displays images, and the three-dimensional image effect shown is poor. Summary of the invention

[0004] The present disclosure provides a display panel, a manufacturing method and a display device, which can improve the display effect of three-dimensional images.

[0005] To this end, in a first aspect, an embodiment of the present disclosure provides a display panel, including an array substrate and a first color filter substrate arranged opposite to each other, the first color filter substrate including a first color resist layer facing the array substrate, the first color resist layer including a plurality of first color resist units distributed in an array, and the display panel further including:

[0006] The second color filter substrate is arranged on a side of the first color filter substrate away from the array substrate. The second color filter substrate includes a second color resist layer facing the first color filter substrate. The second color resist layer includes a plurality of second color resist units distributed in an array. The orthographic projection of the first color resist unit on the array substrate partially overlaps with the orthographic projection of the second color resist unit of the same color on the array substrate.

[0007] In a possible implementation, the area of ​​the overlapping part of the orthographic projection of the first color resist unit on the array substrate and the orthographic projection of the second color resist unit on the array substrate is A1, and the sum of the orthographic projection area of ​​the first color resist unit on the array substrate and the orthographic projection area of ​​the second color resist unit on the array substrate is A2, then A1 / A2=1 / 2~1 / 3.

[0008] In a possible embodiment, the first color resist unit and the second color resist unit are rectangular in shape, the orthographic projection of the first color resist unit on the array substrate partially overlaps with the orthographic projection of the second color resist unit of the same color on the array substrate along a predetermined direction, and the angle B between the predetermined direction and the width direction of the first color resist unit has a value range of 0≤B≤90°.

[0009] In a possible implementation, the first color filter substrate further includes a first base substrate, and the first color resist layer is located on the first base substrate;

[0010] The second color filter substrate also includes a second base substrate, and the second color resist layer is located on the second base substrate;

[0011] The position of the first color resist unit on the first base substrate and the position of the second color resist unit on the second base substrate are aligned along a predetermined direction, and the first base substrate and the second base substrate are staggered along the predetermined direction.

[0012] In a possible implementation, the first color filter substrate further includes a first base substrate, and the first color resist layer is located on the first base substrate;

[0013] The second color filter substrate also includes a second base substrate, and the second color resist layer is located on the second base substrate;

[0014] The first base substrate and the second base substrate are aligned along a predetermined direction, and the position of the first color resist unit on the first base substrate and the position of the second color resist unit on the second base substrate are staggered along the predetermined direction.

[0015] In a possible implementation, the display panel includes a display area and a non-display area located at least on one side of the display area, and the first color resist layer and the second color resist layer are located in the display area;

[0016] The array substrate includes a third base substrate and a plurality of first pixel circuits located on the third base substrate; the plurality of first pixel circuits correspond one-to-one to the plurality of first color resistance units;

[0017] A plurality of second pixel circuits are formed on a side of the first color filter substrate away from the first color resist layer, and the plurality of second pixel circuits correspond one to one to the plurality of second color resist units;

[0018] The first pixel circuit is electrically connected to the second pixel circuit in the non-display area.

[0019] In a possible implementation, the array substrate further includes a plurality of first pads located in the non-display area, and the plurality of first pads are electrically connected to the plurality of first pixel circuits in a one-to-one correspondence;

[0020] The first color filter substrate further includes a plurality of second pads located in the non-display area and on the same side as the second pixel circuit, and the plurality of second pads are electrically connected to the plurality of second pixel circuits in a one-to-one correspondence;

[0021] The first pad is electrically connected to the second pad through a conductive member.

[0022] In a possible implementation manner, the first base substrate is provided with a conducting hole corresponding to the second pad in the non-display area;

[0023] One end of the conductive member is electrically connected to the first pad, and the other end passes through the conductive hole and is electrically connected to the second pad.

[0024] In a second aspect, the present disclosure further provides a method for preparing a display panel, comprising:

[0025] Providing an array substrate, a first color filter substrate having a first color resist layer, and a second color filter substrate having a second color resist layer, wherein the first color resist layer includes a plurality of first color resist units distributed in an array, and the second color resist layer includes a plurality of second color resist units distributed in an array;

[0026] Packaging the array substrate and the first color filter substrate into a box for the first time;

[0027] A second pixel circuit is prepared on a side of the first color filter substrate away from the array substrate;

[0028] The first color filter substrate and the second color filter substrate which are packaged into a box for the first time are packaged into a box for the second time, wherein the orthographic projection of the first color resist unit on the array substrate partially overlaps with the orthographic projection of the second color resist unit of the same color on the array substrate.

[0029] In a third aspect, the present disclosure further provides a display device, including:

[0030] A display panel as claimed in any one of claims 1 to 8; and

[0031] The backlight module is located on the backlight side of the display panel and is used to provide light source to the display panel.

[0032] According to the display panel, preparation method and display device provided by the embodiment of the present disclosure, the display panel includes an array substrate and a first color filter substrate arranged opposite to each other, the first color filter substrate includes a first color resist layer facing the array substrate, the first color resist layer includes a plurality of first color resist units distributed in an array, and the display panel also includes: a second color filter substrate, which is arranged on the side of the first color filter substrate away from the array substrate, the second color filter substrate includes a second color resist layer facing the first color filter substrate, the second color resist layer includes a plurality of second color resist units distributed in an array, and the orthographic projection of the first color resist unit on the array substrate partially overlaps with the orthographic projection of the second color resist unit of the same color on the array substrate. The technical solution of the present disclosure is to stack the first color filter substrate and the second color filter substrate, and make the RGB color blocks coated thereon overlap in an offset manner, so that a virtual image is generated by displaying the first color resist layer on the first color filter substrate close to the array substrate, and then displayed by the second color resist layer on the second color filter substrate, and the image displayed by the first color resist layer is locally brightened, so that the image formed by the light path refracted by the display panel has a chromaticity difference. Specifically, the chromaticity of the overlapping RGB color blocks of the two color filter substrates is stronger, and the chromaticity of the non-overlapping parts is weaker. Therefore, the stereoscopic image displayed by the display panel is not easy to interfere with the user's vision, and has high clarity, which effectively improves the three-dimensional display effect of the display panel; at the same time, the display panel avoids the use of grating structures or lenticular lenses and other light-splitting devices by adding a second color filter substrate, and the RGB color blocks on the second color filter substrate partially overlap with the RGB color blocks coated on the first color filter substrate, which greatly simplifies the heavy structure of the display module and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art description. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. In addition, in the drawings, the same parts are marked with the same reference numerals, and the drawings are not drawn according to the actual scale.

[0034] Figure 1 A top view of a display panel provided in accordance with the first embodiment of the present disclosure;

[0035] Figure 2 for Figure 1 The light path diagram of the display panel shown;

[0036] Figure 3 for Figure 1 A cross-sectional view of the display panel along the PP direction is shown;

[0037] Figure 4 for Figure 1 The effect diagram of the electrical connection of the display panel in the non-display area shown;

[0038] Figure 5 A cross-sectional view of a display panel in a display area provided in a second embodiment of the present disclosure;

[0039] Figure 6 A flow chart of a method for preparing a display panel provided in an embodiment of the present disclosure.

[0040] Description of reference numerals:

[0041] 100, array substrate; 110, third base substrate; 120, first pixel circuit; 130, first pad;

[0042] 200, first color filter substrate; 210, first color resist layer; 220, first base substrate; 230, second pixel circuit; 240, second pad;

[0043] 300, second color filter substrate; 310, second color resist layer; 320, second base substrate;

[0044] 400, guide and connecting parts;

[0045] 10. Backlight module. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0047] With respect to the traditional naked-eye stereoscopic display technology, firstly, the stereoscopic display technology needs to use a grating structure or a cylindrical lens or other light splitting device structure, and the light splitting device structure itself has poor clarity, which will cause visual interference to the user, resulting in poor three-dimensional image effect; secondly, the stereoscopic display technology needs to use a grating structure or a cylindrical lens or other light splitting device structure to make a display module, which will cause the overall structure of the display module to be heavy and costly. The present disclosure intends to design a display panel that avoids the use of a light splitting device. The display panel will not cause visual interference to the user while achieving three-dimensional display, and the overall display effect of the displayed three-dimensional image is good. Specifically, the display panel includes an array substrate 100 and a first color filter substrate 200 that are relatively arranged, the first color filter substrate 200 includes a first color resist layer 210 facing the array substrate 100, and the first color resist layer 210 includes a plurality of first color resist units distributed in an array. The display panel also includes: a second color filter substrate 300, which is arranged on the side of the first color filter substrate 200 away from the array substrate 100, the second color filter substrate 300 includes a second color resist layer 310 facing the first color filter substrate 200, and the second color resist layer 310 includes a plurality of second color resist units distributed in an array, and the orthographic projection of the first color resist unit on the array substrate 100 partially overlaps with the orthographic projection of the second color resist unit of the same color on the array substrate 100.

[0048] The display panel provided by the present disclosure is described in detail below in conjunction with specific embodiments.

[0049] First embodiment

[0050] Figure 1 A top view of a display panel provided by a first embodiment of the present disclosure is shown; Figure 2 The light path diagram of the display panel provided by the first embodiment of the present disclosure is shown; Figure 3 A cross-sectional view of the display panel along the PP direction according to the first embodiment of the present disclosure is shown; Figure 4 A diagram showing the effect of electrical connection of the display panel in the non-display area NA provided by the first embodiment of the present disclosure is shown.

[0051] See also Figures 1 to 4 The embodiment of the present disclosure provides a display panel, including: an array substrate 100, a first color filter substrate 200 and a second color filter substrate 300. A first liquid crystal layer (not shown in the figure) is formed between the array substrate 100 and the first color filter substrate 200, and a second liquid crystal layer (not shown in the figure) is formed between the first color filter substrate 200 and the second color filter substrate 300. Both the first liquid crystal layer and the second liquid crystal layer include a plurality of liquid crystal molecules, which are usually rod-shaped and can flow like a liquid and have certain crystal characteristics. When the liquid crystal molecules are in an electric field, their arrangement direction will change according to the change of the electric field.

[0052] The first color filter substrate 200 includes a first color resist layer 210 facing the array substrate 100, and the first color resist layer includes a plurality of first color resist units distributed in an array;

[0053] The second color filter substrate 300 is arranged on the side of the first color filter substrate 200 away from the array substrate 100. The second color filter substrate 300 includes a second color resist layer 310 facing the first color filter substrate 200. The second color resist layer 310 includes a plurality of second color resist units distributed in an array. The orthographic projection of the first color resist unit on the array substrate 100 partially overlaps with the orthographic projection of the second color resist unit of the same color on the array substrate 100.

[0054] In this embodiment, in order to improve the display effect of the display panel, the display panel is configured as a composite component including at least an array substrate 100, a first color filter substrate 200, and a second color filter substrate 300. Specifically, the first color filter substrate 200 is disposed on the array substrate 100, the second color filter substrate 300 is disposed on the first color filter substrate 200, and the second color filter substrate 300 and the array substrate 100 are respectively located on opposite sides of the first color filter substrate 200. The first color filter substrate 200 is coated with a first color resist layer 210, the first color resist layer 210 includes at least one group of RGB color blocks, and each group of RGB color blocks includes at least three first color resist units; the second color filter substrate 300 is coated with a second color resist layer 310, the second color resist layer 310 includes at least one group of RGB color blocks, and each group of RGB color blocks includes at least three second color resist units. The RGB color blocks of the first color resist layer 210 and the RGB color blocks of the second color resist layer 310 are partially overlapped and staggered, that is, the first color resist units in the RGB color blocks in the corresponding first color resist layer partially overlap with the second color resist units of the same color in the RGB color blocks in the second color resist layer.

[0055] Furthermore, the first color resist layer 210 is used to generate a virtual image, and the second color resist layer 310 is used to locally brighten the virtual image generated by the first color resist layer 210, so that the image displayed by the display panel has a chromaticity difference, and when it enters the user's eyes, a three-dimensional image display effect is generated. Specifically, the chromaticity of the image displayed at the overlapping portion of the second color resist layer 310 and the first color resist layer 210 is stronger, and the chromaticity of the image displayed at the non-overlapping portion of the second color resist layer 310 and the first color resist layer 210 is weaker. In this way, the image formed by the first color resist layer 210 and the second color resist layer 310 has an obvious chromaticity difference. As the position of the user changes, the light path passing through the second color filter substrate 300 is deflected and refracted, and a visual image with different viewing angles is generated, thereby achieving a three-dimensional display effect; and the three-dimensional image displayed by the display panel is distinct in light and dark, and is not easy to interfere with the user's vision or cause dizziness to the user in observation, and has high clarity and good three-dimensional display effect.

[0056] In addition, the display panel provided by the embodiment of the present disclosure does not use a grating structure or a cylindrical lens or other spectroscopic devices used in traditional display panels to achieve a three-dimensional display effect. It avoids the use of spectroscopic devices, effectively reduces the thickness of the display module, improves the display function of the display panel, and greatly reduces the production cost.

[0057] For example but not limited to, the array substrate 100 is a TFT glass substrate.

[0058] In a possible implementation, the area of ​​the overlapping portion of the orthographic projection of the first color resist unit on the array substrate 100 and the orthographic projection of the second color resist unit on the array substrate 100 is A1, and the sum of the orthographic projection area of ​​the first color resist unit on the array substrate 100 and the orthographic projection area of ​​the second color resist unit on the array substrate 100 is A2, then A1 / A2=1 / 2~1 / 3.

[0059] In this embodiment, the degree of overlap between the second color resist layer 310 and the first color resist layer 210 is optimized. Specifically, the degree of misalignment between the first color resist layer 210 and the second color resist layer 310 is set between 1 / 2 and 1 / 3 of the unit area of ​​overlap. It can also be said that the width of a single color resist unit of the RGB color block of the first color resist layer 210 is X, and the distance between two adjacent color resist units in the group of RGB color blocks is between 1 / 2X and 1 / 3X, that is, the distance between the R pixel and the G pixel is 1 / 2X to 1 / 3X, and the distance between the G pixel and the B pixel is 1 / 2X to 1 / 3X. When the second color filter substrate 300 is assembled on the first color filter substrate 200, the RGB color blocks of the second color filter substrate 300 are misaligned with the RGB color blocks of the first color filter substrate 200, and the R pixel portion of the second color filter substrate 300 is correspondingly arranged above the position corresponding to the spacing between the R pixel and the G pixel of the first color filter substrate 200. That is, in the width direction of the color resist unit, the orthographic projection of the R pixel of the second color filter substrate 300 and the orthographic projection of the R pixel of the first color filter substrate 200 have a non-overlapping part of 1 / 2 to 2 / 3, and the chromaticity of the image displayed in the non-overlapping part is weaker, while the chromaticity of the image displayed in the overlapping part is stronger, alternating between strong and weak, so that the image displayed by the display panel has a three-dimensional sense, which is beneficial to enhance the display effect of the display panel.

[0060] In a possible embodiment, the first color resist unit and the second color resist unit are rectangular in shape, the orthographic projection of the first color resist unit on the array substrate 100 partially overlaps with the orthographic projection of the second color resist unit of the same color on the array substrate 100 along a predetermined direction, and the angle B between the predetermined direction and the width direction of the first color resist unit is in the range of 0≤B≤90°.

[0061] In this embodiment, the shapes of the first color resist unit and the second color resist unit are optimized, and the specific overlapping parts of the first color resist unit and the second color resist unit are optimized. Specifically, the first color resist unit and the second color resist unit are both set to be rectangular. The rectangular color resist units can overlap in the horizontal direction (0°), can overlap in the vertical direction (90°), and can also overlap in the oblique direction (30°, 45° or 60°, etc.), that is, the angle B between the overlapping direction and the width direction of the first color resist unit ranges from 0 to 90°. Preferably, the rectangular color resist units overlap in the horizontal direction to obtain a better display effect.

[0062] In a possible implementation, the first color filter substrate 200 further includes a first base substrate 220 , and the first color resist layer 210 is located on the first base substrate 220 ;

[0063] The second color filter substrate 300 further includes a second base substrate 320 , and the second color resist layer 310 is located on the second base substrate 320 ;

[0064] The position of the first color resist unit on the first base substrate 220 and the position of the second color resist unit on the second base substrate 320 are aligned along a predetermined direction, and the first base substrate 220 and the second base substrate 320 are staggered along the predetermined direction.

[0065] In this embodiment, the relative positions of the first color filter substrate 200 and the second color filter substrate 300 are specifically set. Specifically, the first color filter substrate 200 includes a first base substrate 220 and a first color resist layer 210, and the first color resist layer 210 is arranged on the first base substrate 220. The second color filter substrate 300 includes a second base substrate 320 and a second color resist layer 310, and the second color resist layer 310 is arranged on the second base substrate 320. When the first color filter substrate 200 / the second color filter substrate 300 are processed, the same lampshade is selected for processing, so as to ensure that each color resist unit of the first color resist layer 210 and the second color resist layer 310 is arranged relative to each other. When the first color filter substrate 200 and the second color filter substrate 300 are boxed, the first base substrate 220 and the second base substrate 320 can be arranged in a staggered manner.

[0066] For example but not limited to, the first base substrate 220 and the second base substrate 320 are arranged in a staggered manner in the horizontal direction (i.e., in the horizontal direction, or in the width direction of the first color resist unit), that is, the first base substrate 220 protrudes on the left or right side of the second base substrate 320 to form a box connection. At this time, an overlapping effect of the orthographic projection of the first color resist unit on the array substrate 100 and the orthographic projection of the second color resist unit of the same color on the array substrate 100 in the horizontal direction (i.e., in the width direction of the first color resist unit) can be obtained. In this way, the second color resist layer 310 and the first color resist layer 210 are staggered and complemented in the horizontal direction, and the second color filter substrate 300 and the first color filter substrate 200 form a chromaticity difference in the horizontal direction, thereby improving the three-dimensional display effect of the display panel.

[0067] For example but not limited to, the same lampshade can be used to coat the RGB color blocks on the first color filter substrate 200 and the second color filter substrate 300, so as to obtain the first color filter substrate 200 and the second color filter substrate 300 with RGB color blocks aligned.

[0068] In a possible implementation, the display panel includes a display area AA and a non-display area NA located at least on one side of the display area AA, and the first color resist layer 210 and the second color resist layer 310 are located in the display area AA;

[0069] The array substrate 100 includes a third base substrate 110 and a plurality of first pixel circuits 120 located on the third base substrate 110; the plurality of first pixel circuits 120 correspond one-to-one to the plurality of first color resistance units;

[0070] A plurality of second pixel circuits 230 are formed on a side of the first color filter substrate 200 away from the first color resist layer 210 , and the plurality of second pixel circuits 230 correspond to the plurality of second color resist units one by one;

[0071] The first pixel circuit 120 and the second pixel circuit 230 are electrically connected to each other in the non-display area NA.

[0072] In this embodiment, the process of the first color filter substrate 200 is optimized, and a printed circuit process is added to the first color filter substrate 200. Specifically, a second pixel circuit 230 is added to the side of the first color filter substrate 200 facing away from the first color resistance layer 210, and the second pixel circuit 230 is electrically connected to the second color resistance unit, so that the second color resistance layer 310 is turned on or off through the circuit provided on the first color filter substrate 200, so that the second color filter substrate 300 performs a display operation or does not perform a display operation.

[0073] At the same time, the specific structure of the array substrate 100 is set, and the array substrate 100 at least includes a third base substrate 110 and a plurality of first pixel circuits 120. The first pixel circuit 120 is arranged toward the first color resist layer 210 of the first color filter substrate 200, and is electrically connected to the first color resist unit, so that the first color resist layer 210 is turned on or off by the circuit arranged on the array substrate 100, so that the first color filter substrate 200 performs a display operation or does not perform a display operation.

[0074] In a possible implementation, the array substrate 100 further includes a plurality of first pads 130 located in the non-display area NA, and the plurality of first pads 130 are electrically connected to the plurality of first pixel circuits 120 in a one-to-one correspondence;

[0075] The first color filter substrate 200 further includes a plurality of second pads 240 located in the non-display area NA and on the same side as the second pixel circuit 230 , and the plurality of second pads 240 are electrically connected to the plurality of second pixel circuits 230 in a one-to-one correspondence;

[0076] The first pad 130 and the second pad 240 are electrically connected via the conductive member 400 .

[0077] In this embodiment, the connection mode of the first pixel circuit 120 and the second pixel circuit 230 is set. Specifically, the first pixel circuit 120 and the second pixel circuit 230 are turned on in the non-display area NA, a first pixel circuit 120 is electrically connected to a first pad 130, a second pixel circuit 230 is electrically connected to a second pad 240, each first pad 130 is arranged corresponding to a second pad 240, and the corresponding first pad 130 is electrically connected to the second pad 240 through a conductive member, so as to realize the conduction of multiple first pixel circuits 120 and multiple second pixel circuits 230, so that the entire display panel can be turned on using a driving motor driving circuit.

[0078] In a possible implementation manner, the first base substrate 220 is provided with a conducting hole corresponding to the second pad 240 in the non-display area NA;

[0079] One end of the conductive member 400 is electrically connected to the first pad 130 , and the other end thereof passes through the conductive hole and is electrically connected to the second pad 240 .

[0080] In this embodiment, the specific connection method of the first pad 130 and the second pad 240 is optimized. Specifically, a conducting hole is opened on the first base substrate 220, and the conducting hole is arranged corresponding to the second pad 240, so that one end of the conductive member 400 electrically connected to the second pad 240 can pass through the conducting hole and be electrically connected to the first pad 130, thereby realizing the electrical connection between the first pad 130 and the second pad 240. In this way, by reasonably utilizing the space between the first base substrate 220 and the second base substrate 320, it is avoided to use a long flexible wire to conduct the first pad 130 and the second pad 240 from the outside of the first base substrate 220 and the second base substrate 320, which makes it difficult to accommodate the external wire and requires a separate space for accommodating the external wire; and the arrangement of the conductive member 400 is also conducive to reducing the thickness of the display panel. For example, but not limited to, the conductive member 400 is a wire made of a conductive metal such as copper or aluminum.

[0081] Of course, in another embodiment, when sealing the first color filter substrate 200 and the array substrate 100, metal materials such as aluminum particles can also be used to directly connect the first pixel circuit 120 and the second pixel circuit 230 when the first color filter substrate 200 and the array substrate 100 are packaged into a box.

[0082] The display panel provided in this embodiment uses the same lampshade to process the first color resist layer 210 on the first color filter substrate 200 and the second color resist layer 310 on the second color filter substrate 300, so that the first color resist unit of the first color resist layer 210 and the second color resist unit of the second color resist layer 310 are arranged opposite to each other. When packaging into a box, the first base substrate 220 of the first color filter substrate 200 and the second base substrate 320 of the second color filter substrate 300 are arranged in a staggered manner. In this way, the structure of the entire display panel is more compact, the production cost is low, and the display effect of three-dimensional images is good. At the same time, because the display panel provided in this embodiment deflects and refracts the light path through two color filter substrates, so that the user can have different angles of vision at different positions, thereby achieving a three-dimensional display effect, avoiding the use of a splitter device in the traditional technology to enable the user to obtain different visions, effectively reducing the thickness of the backlight module 10, and facilitating the thinning setting of the display panel.

[0083] Second embodiment

[0084] Figure 5 A cross-sectional view of a display panel provided in a second embodiment of the present disclosure in a display area AA is shown.

[0085] See also Figure 5The embodiment of the present disclosure further provides a display panel, which is similar in structure to the display panel provided in the first embodiment, except that the RGB color blocks coated on the first color filter substrate 200 and the RGB color blocks coated on the second color filter substrate 300 are realized by different lampshades, that is, the position of the first color resistance unit on the first base substrate 220 and the position of the second color resistance unit on the second base substrate 320 are staggered along a predetermined direction, so that when the second color filter substrate 300 is assembled on the first color filter substrate 200, it is only necessary to align the first base substrate 220 and the second base substrate 320 along the predetermined direction.

[0086] Specifically, the display panel includes: an array substrate 100 , a first color filter substrate 200 and a second color filter substrate 300 .

[0087] The first color filter substrate 200 includes a first color resist layer 210 facing the array substrate 100, and the first color resist layer includes a plurality of first color resist units distributed in an array; the second color filter substrate 300 is arranged on a side of the first color filter substrate 200 away from the array substrate 100, and the second color filter substrate 300 includes a second color resist layer 310 facing the first color filter substrate 200, and the second color resist layer 310 includes a plurality of second color resist units distributed in an array, and the orthographic projection of the first color resist unit on the array substrate 100 partially overlaps with the orthographic projection of the second color resist unit of the same color on the array substrate 100.

[0088] For example, but not limited to, the ratio of the area of ​​the overlapping portion of the orthographic projection of the second color resist layer 310 on the array substrate 100 and the orthographic projection of the first color resist layer 210 on the array substrate 100 to the sum of the orthographic projection area of ​​the second color resist layer 310 on the array substrate 100 and the orthographic projection area of ​​the first color resist layer 210 on the array substrate 100 is 1 / 2. In addition, the shapes of the first color resist unit and the second color resist unit are rectangular, and the orthographic projection of the first color resist unit on the array substrate 100 and the orthographic projection of the second color resist unit of the same color on the array substrate 100 partially overlap in the horizontal direction (i.e., the width direction of the first color resist unit).

[0089] Optionally, the first color filter substrate 200 includes a first base substrate 220 and a first color resist layer 210, and the first color resist layer 210 is located on the first base substrate 220. The second color filter substrate 300 includes a second base substrate 320 and a second color resist layer 310, and the second color resist 310 is located on the second base substrate 320. The first base substrate 220 and the second base substrate 320 are aligned in the transverse direction, and the position of the first color resist unit on the first base substrate 220 and the position of the second color resist unit on the second base substrate 320 are staggered in the transverse direction.

[0090] For example, but not limited to, different lampshades are used to prepare the RGB color blocks on the first color filter substrate 200 and the second color filter substrate 300, so that the obtained RGB color blocks on the first color filter substrate 200 and the RGB color blocks on the second color filter substrate 300 are offset and complemented in the horizontal direction. In this way, when the second color filter substrate 300 is assembled on the side of the first color filter substrate 200 away from the array substrate 100, the second base substrate 320 is directly aligned with the first base substrate 220 to obtain a display panel with two color resist layers partially overlapping each other in the horizontal direction.

[0091] Furthermore, the display panel includes a display area AA and a non-display area NA located on at least one side of the display area AA, and the first color resist layer 210 and the second color resist layer 310 are located in the display area AA; the array substrate 100 includes a third base substrate 110 and a plurality of first pixel circuits 120 located on the third base substrate 110; the plurality of first pixel circuits 120 correspond one-to-one to the plurality of first color resist units; a plurality of second pixel circuits 230 are formed on the side of the first color film substrate 200 away from the first color resist layer 210, and the plurality of second pixel circuits 230 correspond one-to-one to the plurality of second color resist units; the first pixel circuits 120 and the second pixel circuits 230 are electrically connected correspondingly in the non-display area NA. The array substrate 100 further includes a plurality of first pads 130 located in the non-display area NA, and the plurality of first pads 130 are electrically connected to the plurality of first pixel circuits 120 in one-to-one correspondence; the first color film substrate 200 further includes a plurality of second pads 240 located in the non-display area NA and on the same side as the second pixel circuits 230, and the plurality of second pads 240 are electrically connected to the plurality of second pixel circuits 230 in one-to-one correspondence; the first pads 130 are electrically connected to the second pads 240 through the conductive member 400. The first base substrate 220 is provided with a conductive hole corresponding to the second pad 240 in the non-display area NA; one end of the conductive member 400 is electrically connected to the first pad 130, and the other end passes through the conductive hole and is electrically connected to the second pad 240.

[0092] Specifically, the liquid crystal display panel includes a display area AA and a non-display area NA located outside the display area AA, and the non-display area NA of the array substrate 100 is formed with a plurality of first pads 130 distributed at intervals along the enclosing direction, and the non-display area NA of the first color filter substrate 200 is formed with a plurality of second pads 240 distributed at intervals along the enclosing direction. In the box manufacturing process of the array substrate 100 and the first color filter substrate 200, a first alignment film and a second alignment film are usually firstly made on the opposite surfaces of the array substrate 100 and the first color filter substrate 200, respectively, and the first alignment film and the second alignment film are used to limit the orientation of the liquid crystal molecules in the first liquid crystal layer, and then a sealing sealant is applied on the plurality of first pads 130 of the array substrate 100 and liquid crystal is dripped, and then the array substrate 100 and the first color filter substrate 200 are attached in a vacuum state, and finally the sealant is cured by ultraviolet irradiation to complete the packaging of the array substrate 100 and the first color filter substrate 200. The box manufacturing process of the second color filter substrate 300 and the first color filter substrate 200 is the same as above, and will not be described in detail here.

[0093] Figure 6 A flow chart showing a method for manufacturing a display panel provided in a second embodiment of the present disclosure is shown.

[0094] See also Figure 6 In addition, this embodiment also discloses a method for preparing the above display panel, the method comprising:

[0095] S100, providing an array substrate, a first color filter substrate having a first color resist layer, and a second color filter substrate having a second color resist layer, wherein the first color resist layer includes a plurality of first color resist units distributed in an array, and the second color resist layer includes a plurality of second color resist units distributed in an array;

[0096] S200, packaging the array substrate and the first color filter substrate into a box for the first time;

[0097] S300, preparing a second pixel circuit on a side of the first color filter substrate away from the array substrate;

[0098] S400, packaging the first color filter substrate and the second color filter substrate into a box for the second time, wherein the orthographic projection of the first color resist unit on the array substrate partially overlaps with the orthographic projection of the second color resist unit of the same color on the array substrate.

[0099] In this embodiment, the TFT glass substrate (third base substrate 110) is firstly arrayed with a TFT circuit by using an array process, so as to arrange the required circuit on the third base substrate 110, and form an array substrate 100 with a first pixel circuit 120; the required RGB color block array is coated on the first base substrate 220 to form a first color filter substrate 200 for standby; and the RGB color block array with the same lampshade as the first color resist layer is coated on the second base substrate 320 to form a second color filter substrate for standby. Then, the side of the first base substrate 220 coated with the RGB color blocks is packaged into a box with the side of the third base substrate 110 provided with the first pixel unit 110, so that the first color filter substrate 200 and the array substrate 100 are bonded. Then, the TFT circuit array process is performed on the side of the first base substrate 220 away from the array substrate 100, so as to arrange the required circuit on the first base substrate 220, and form a first color filter substrate 200 with a second pixel circuit 230. Finally, the side of the second base substrate 320 coated with the RGB color blocks is aligned with the side of the first base substrate 220 provided with the first pixel circuit 120 and packaged into a box, so that the first color filter substrate 200 and the second color filter substrate 300 are attached to each other.

[0100] It should be explained that the TFT circuit array process performed on the first substrate 220 can be selected to be the same as the TFT circuit array process performed on the third substrate 110, so as to facilitate the connection between the second pixel circuit 230 and the RGB color blocks on the second substrate 320; of course, the TFT circuit array process performed on the first substrate 220 can also be different from the TFT circuit array process performed on the third substrate 110. In this case, the RGB color block arrangement on the second substrate 320 needs to be optimized accordingly.

[0101] It should be understood that the display panel obtained by the preparation method is more compact in structure, has low production cost and good display effect of three-dimensional images. At the same time, because the light path is deflected and refracted by two color film substrates in the method, so that the user can have different angles of vision at different positions, thereby achieving the effect of three-dimensional display, avoiding the use of a splitter device in the traditional technology to enable the user to obtain different visions, effectively reducing the thickness of the backlight module 10, which is conducive to the thinning of the display panel.

[0102] In addition, the embodiment of the present disclosure also provides an application scenario diagram of a display panel for a display device. Specifically, the display device comprises: the display panel as described above and a backlight module 10, the backlight module 10 is located on the backlight side of the display panel and is used to provide light source to the display panel.

[0103] In this embodiment, the specific structure of the display panel refers to the above embodiment. Since the display device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0104] It can be understood that the technical solutions of the display panel provided in the embodiments of the present application can be widely used in various liquid crystal display panels, such as TN (Twisted Nematic) display panel, IPS (In-Plane Switching) display panel, VA (Vertical Alignment) display panel, and MVA (Multi-Domain Vertical Alignment) display panel.

[0105] It should be easily understood that “on,” “above,” and “over” in this application should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above something” or “over,” but also may include the meaning of “above something” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0106] The term "substrate substrate" as used herein refers to the material on which subsequent material layers are added. The substrate substrate itself can be patterned. The material added on top of the substrate substrate can be patterned, or can remain unpatterned. In addition, the substrate substrate can include a wide range of materials, such as silicon, germanium, gallium arsenide, indium phosphide, etc. Alternatively, the substrate substrate can be made of a non-conductive material (e.g., glass, plastic, or sapphire wafer, etc.).

[0107] The term "layer" used in the text may refer to a material portion including an area with a certain thickness. A layer may extend over the entire underlying structure or overlying structure, or may have a range smaller than the range of the underlying or overlying structure. In addition, a layer may be an area of ​​a homogeneous or inhomogeneous continuous structure, the thickness of which is less than the thickness of the continuous structure. For example, a layer may be located between the top surface and the bottom surface of the continuous structure or between any paired lateral planes at the top surface and the bottom surface. A layer may extend laterally, vertically and / or along a tapered surface. A substrate substrate may be a layer, may include one or more layers therein, and / or may have one or more layers located thereon, above it and / or below it. A layer may include multiple layers. For example, an interconnect layer may include one or more conductors and a contact layer (forming contacts, interconnects and / or vias therein) and one or more dielectric layers.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, 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 an array substrate and a first color filter substrate arranged opposite to each other, wherein the first color filter substrate comprises a first color resist layer facing the array substrate, and the first color resist layer comprises a plurality of first color resist units distributed in an array, characterized in that: The display panel further includes: A second color filter substrate is provided on a side of the first color filter substrate away from the array substrate, the second color filter substrate comprises a second color resist layer facing the first color filter substrate, the second color resist layer comprises a plurality of second color resist units distributed in an array, and an orthographic projection of the first color resist unit on the array substrate partially overlaps with an orthographic projection of the second color resist unit of the same color on the array substrate; The area of ​​the overlapping part of the orthographic projection of the first color resist unit on the array substrate and the orthographic projection of the second color resist unit on the array substrate is A1, and the sum of the orthographic projection area of ​​the first color resist unit on the array substrate and the orthographic projection area of ​​the second color resist unit on the array substrate is A2, then A1 / A2=1 / 2~1 / 3; The display panel includes a display area and a non-display area located on at least one side of the display area, and the first color resist layer and the second color resist layer are located in the display area; the array substrate includes a third base substrate and a plurality of first pixel circuits located on the third base substrate, and the plurality of first pixel circuits correspond one-to-one to the plurality of first color resist units; a plurality of second pixel circuits are formed on the side of the first color film substrate away from the first color resist layer, and the plurality of second pixel circuits correspond one-to-one to the plurality of second color resist units; the first pixel circuits and the second pixel circuits are electrically connected correspondingly in the non-display area.

2. The display panel according to claim 1, characterized in that: The first color resist unit and the second color resist unit are rectangular in shape, and the orthographic projection of the first color resist unit on the array substrate partially overlaps with the orthographic projection of the second color resist unit of the same color on the array substrate along a predetermined direction, and the value range of the angle B between the predetermined direction and the width direction of the first color resist unit is 0≤B≤90°.

3. The display panel according to claim 2, characterized in that: The first color filter substrate further includes a first base substrate, and the first color resist layer is located on the first base substrate; The second color filter substrate further includes a second base substrate, and the second color resist layer is located on the second base substrate; The position of the first color resist unit on the first base substrate and the position of the second color resist unit on the second base substrate are aligned along the predetermined direction, and the first base substrate and the second base substrate are staggered along the predetermined direction.

4. The display panel according to claim 2, characterized in that: The first color filter substrate further includes a first base substrate, and the first color resist layer is located on the first base substrate; The second color filter substrate further includes a second base substrate, and the second color resist layer is located on the second base substrate; The first base substrate and the second base substrate are aligned along the predetermined direction, and the position of the first color resistance unit on the first base substrate and the position of the second color resistance unit on the second base substrate are staggered along the predetermined direction.

5. The display panel according to claim 3 or 4, characterized in that: The array substrate further comprises a plurality of first pads located in the non-display area, wherein the plurality of first pads are electrically connected to the plurality of first pixel circuits in a one-to-one correspondence; The first color filter substrate further includes a plurality of second pads located in the non-display area and on the same side as the second pixel circuit, and the plurality of second pads are electrically connected to the plurality of second pixel circuits in a one-to-one correspondence; The first pad is electrically connected to the second pad through a conductive member.

6. The display panel according to claim 5, characterized in that: The first base substrate is provided with a conducting hole corresponding to the second pad in the non-display area; One end of the conductive member is electrically connected to the first pad, and the other end thereof passes through the conductive hole and is electrically connected to the second pad.

7. A method for preparing a display panel according to any one of claims 1 to 6, characterized in that: include: Providing an array substrate, a first color filter substrate having a first color resist layer, and a second color filter substrate having a second color resist layer, wherein the first color resist layer includes a plurality of first color resist units distributed in an array, and the second color resist layer includes a plurality of second color resist units distributed in an array; Packaging the array substrate and the first color filter substrate into a box for the first time; A second pixel circuit is prepared on a side of the first color filter substrate away from the array substrate; The first color filter substrate and the second color filter substrate which are packaged into a box for the first time are packaged into a box for the second time, wherein the orthographic projection of the first color resist unit on the array substrate partially overlaps with the orthographic projection of the second color resist unit of the same color on the array substrate.

8. A display device, characterized in that: include: The display panel according to any one of claims 1 to 6; and The backlight module is located at the backlight side of the display panel and is used to provide light source to the display panel.

Images