Display panel and display device

Abstract

The utility model discloses a display panel and a display device, the display panel comprises a color film substrate, an array substrate and a liquid crystal layer located between the color film substrate and the array substrate; the color film substrate comprises a plurality of first color resistors and second color resistors, the second color resistors are located between the adjacent first color resistors, and at least part of the second color resistors and the adjacent first color resistors are different in color of light penetrating through the second color resistors. The array substrate is provided with a shading area and a plurality of light-transmitting areas, the orthographic projection of the shading area on the color film substrate covers the second color resistor, and the orthographic projection of the light-transmitting areas on the color film substrate falls into the range of the corresponding first color resistor; the array substrate comprises a three-dimensional reflection structure, and the three-dimensional reflection structure is located on the side, away from the second color resistor, of the liquid crystal layer; and the three-dimensional reflection structure is used for reflecting the light transmitted by the second color resistor to the light-transmitting area to be emitted, so that the light transmitted by the second color resistor and the light transmitted by the first color resistor are mixed in a set light-emitting angle range, and a display picture in the set light-emitting angle range is blurred.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-peeping display, in particular to a display panel and a display device. Background Art

[0002] With the rapid development of information technology, people pay more and more attention to the protection of personal information, so the anti-peeping requirement for display devices emerges as the times require. At present, there are two common anti-peeping schemes: one is to add an anti-peeping film on the display screen, and the other is to add a liquid crystal cell in the display device to modulate the light output state of the display device within a certain angle range.

[0003] Although the existing schemes can meet most of the anti-peeping display requirements, they also bring some new problems. For example, in the former scheme, the anti-peeping film can only achieve anti-peeping at a fixed viewing angle, and the use of the anti-peeping film will reduce the transmittance of the display panel, resulting in a darker display picture. If the same display brightness as the normal display mode is to be achieved, the power consumption of the display device will increase; in the latter scheme, adding a liquid crystal cell also leads to an increase in the number of polarizers in the device, and to achieve a better anti-peeping effect, multiple liquid crystal cells may need to be set, which results in a significant increase in the thickness, cost and power consumption of the display device. Therefore, how to reduce the impact on the normal display effect and the structure of the display device itself while achieving anti-peeping is a problem that needs to be solved. Summary of the Utility Model

[0004] The utility model provides a display panel and a display device for realizing anti-peeping display, which have the characteristics of being thin, light and low-power.

[0005] In a first aspect, the utility model provides a display panel, which includes a color filter substrate, an array substrate and a liquid crystal layer located between the color filter substrate and the array substrate. The side where the color filter substrate is located is the light incident side of the display panel, and the side where the array substrate is located is the light output side of the display panel;

[0006] The color filter substrate includes a plurality of color resistors, the plurality of color resistors include a first color resistor and a second color resistor, the second color resistor is located between adjacent first color resistors, and at least part of the second color resistor has a different color from the light transmitted by the adjacent first color resistor; the array substrate has a light shielding area and a plurality of light transmitting areas, the positive projection of the light shielding area on the color filter substrate covers the second color resistor, the light transmitting areas correspond to the first color resistors one by one, and the positive projection of the light transmitting areas on the color filter substrate falls within the range of the corresponding first color resistor;

[0007] The array substrate includes a three-dimensional reflection structure, which is located on the side of the liquid crystal layer away from the second color filter; the three-dimensional reflection structure is used to reflect the light transmitted through the second color filter to the light-transmitting area for emission, so that the light transmitted through the second color filter is mixed with the light transmitted through the first color filter within a set light-emitting angle range.

[0008] In some embodiments of the present invention, one or more three-dimensional reflection structures are correspondingly arranged for each second color filter, and the orthographic projection of the one or more three-dimensional reflection structures on the color filter substrate at least partially overlaps with the corresponding second color filter; wherein, the multiple three-dimensional reflection structures are stacked, and the adjacent reflecting surfaces of the adjacent three-dimensional reflection structures are arranged at a set included angle.

[0009] In some embodiments of the present invention, the shapes of the multiple three-dimensional reflection structures are the same or at least partially different, and the shape of the three-dimensional reflection structure is one of a triangular prism or a quadrangular prism.

[0010] In some embodiments of the present invention, the array substrate further includes a control circuit and a reflection layer, the reflection layer is located on the side of the control circuit away from the three-dimensional reflection structure, the orthographic projection of the reflection layer on the color filter substrate covers the orthographic projection of the three-dimensional reflection structure on the color filter substrate, and the light transmitted through the second color filter can be reflected between the reflection layer and the three-dimensional reflection structure and emitted to the light-transmitting area.

[0011] In some embodiments of the present invention, the surface of the reflection layer facing the three-dimensional reflection structure is a plane, or the surface of the reflection layer facing the three-dimensional reflection structure is recessed toward the side of the control circuit.

[0012] In some embodiments of the present invention, the array substrate further includes an antireflection layer, the antireflection layer is located on the side of the reflection layer away from the color filter substrate, and the orthographic projection of the antireflection layer on the color filter substrate covers the orthographic projections of the reflection layer, the control circuit and the three-dimensional reflection structure on the color filter substrate.

[0013] In some embodiments of the present invention, the colors of the light transmitted through each second color filter are the same, and the color of the light transmitted through the second color filter is at least different from the color of the light transmitted through at least part of the first color filter.

[0014] In some embodiments of the present invention, there are two second color filters between at least some adjacent first color filters, and the colors of the light transmitted through the two second color filters are different.

[0015] In some embodiments of the present invention, the plurality of color resists include a plurality of color resist rows, the plurality of color resist rows are arranged along a first direction, in each of the color resist rows, the first color resists and the second color resists are alternately arranged along a second direction, and the second direction is orthogonal to the first direction.

[0016] In some embodiments of the present invention, one second color resist is included between every two first color resists adjacent to each other in the first direction.

[0017] In some embodiments of the present invention, the width of the second color resist in the first direction is less than or equal to the width of the first color resist in the first direction; the width of the second color resist in the second direction is less than or equal to the width of the first color resist in the second direction.

[0018] In some embodiments of the present invention, the color filter substrate further includes a black matrix, the black matrix and the plurality of color resists are disposed in the same layer, and a pattern of the black matrix is complementary to a pattern of the plurality of color resists.

[0019] In a second aspect, the utility model further provides a display device, comprising a backlight module and any one of the display panels described in the first aspect, wherein the display panel is located at a light emitting side of the backlight module.

[0020] The beneficial effects of the utility model are as follows:

[0021] The utility model provides a display panel and a display device, wherein the display panel comprises a color filter substrate, an array substrate and a liquid crystal layer located between the color filter substrate and the array substrate, the side where the color filter substrate is located is the light incident side of the display panel, and the side where the array substrate is located is the light exit side of the display panel; the color filter substrate comprises a plurality of color resistors, the plurality of color resistors comprise a first color resistor and a second color resistor, the second color resistor is located between adjacent first color resistors, and at least part of the second color resistor and the adjacent first color resistor transmit light of different colors; the array substrate comprises a light shielding area and a plurality of light transmission areas, the orthographic projection of the light shielding area on the color filter substrate covers the second color resistor, the light transmission area corresponds to the first color resistor one by one, and the orthographic projection of the light transmission area on the color filter substrate falls within the range of the corresponding first color resistor; the array substrate comprises a three-dimensional reflection structure, the three-dimensional reflection structure is located on the side of the liquid crystal layer away from the second color resistor; the three-dimensional reflection structure is used for reflecting the light transmitted by the second color resistor to the light transmission area for emission, so that the light transmitted by the second color resistor is mixed with the light transmitted by the first color resistor within a set light exit angle range, thereby blurring the display screen within the set light exit angle range, and realizing anti-peeping. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments of the present utility model. Obviously, the following introduced drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a top view of a display panel provided by an embodiment of the present utility model;

[0024] Figure 2 For Figure 1 It is a cross-sectional view of the display panel shown in the AA' direction;

[0025] Figure 3 For Figure 1 It is a cross-sectional view of the display panel shown in the BB' direction;

[0026] Figure 4 It is a top view of another display panel provided by an embodiment of the present utility model;

[0027] Figure 5 For Figure 4 It is a cross-sectional view of the display panel shown in the AA' direction;

[0028] Figure 6 It is a top view of another display panel provided by an embodiment of the present utility model;

[0029] Figure 7 For Figure 6 It is a cross-sectional view of the display panel shown in the BB' direction;

[0030] Figure 8 It is another cross-sectional view of the display panel provided by an embodiment of the present utility model;

[0031] Figure 9 It is another cross-sectional view of the display panel provided by an embodiment of the present utility model;

[0032] Figure 10 It is another cross-sectional view of a display panel provided by an embodiment of the present utility model;

[0033] Figure 11 It is another cross-sectional view of a display panel provided by an embodiment of the present utility model;

[0034] Figure 12 It is another cross-sectional view of a display panel provided by an embodiment of the present utility model.

[0035] Explanation of reference numerals:

[0036] 1 - Color film substrate, 2 - Array substrate, 3 - Liquid crystal layer, 21 - Light-shielding area, 22 - Light-transmitting area, 11 - First color filter, 12 - Second color filter, 23 - Three-dimensional reflection structure, D1 - First direction, D2 - Second direction, 24 - Reflection layer, 25 - Anti-reflection layer, 26 - Common electrode, 27 - Pixel electrode, H - Color filter row, 4 - Black matrix, G1 - First substrate, G2 - Second substrate, POL1 / POL2 - Polarizer. Detailed implementation mode

[0037] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described below in conjunction with the drawings and embodiments. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the embodiments described herein; on the contrary, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings represent the same or similar structures, and thus the repeated description thereof will be omitted. The words expressing positions and directions described in the present invention are all illustrated with reference to the drawings, but can be changed according to needs, and all changes are included in the protection scope of the present invention. The drawings of the present invention are only used to illustrate the relative position relationship and do not represent the actual proportion.

[0038] Figure 1 A top view of a display panel provided by an embodiment of the present invention; Figure 2 For Figure 1 The cross-sectional view of the display panel shown in the AA' direction; Figure 3 For Figure 1 The cross-sectional view of the display panel shown in the BB' direction.

[0039] As Figures 1 to 3 Shown, in the embodiment of the present invention, the display panel is a liquid crystal display panel (Liquid Crystal Display, abbreviated as LCD), and the display panel includes a color film substrate 1, an array substrate 2, and a liquid crystal layer 3 located between the color film substrate 1 and the array substrate 2. The color film substrate 1 includes a plurality of color filters, and the color filters can filter the incident light, only emit the light of a set wavelength band, and absorb the light of other wavelength bands. There are a plurality of liquid crystal molecules arranged in a set manner in the liquid crystal layer 3. When the liquid crystal molecules are in different deflection states, they can change the transmittance or propagation direction of the incident light. The array substrate 2 includes a control circuit for controlling the deflection of the liquid crystal molecules in the liquid crystal layer 3. Through the control circuit, the deflection state of the liquid crystal molecules can be controlled, the transmittance and propagation direction of the incident light can be modulated, and thus the intensity and color ratio of the light emitted by the display panel can be regulated to form a display image with the required contrast and clarity.

[0040] When the display panel in the embodiment of the present invention is applied to a display device, the side where the color filter substrate 1 is located serves as the light-incident side of the display panel, and the side where the array substrate 2 is located serves as the light-emitting side of the display panel. The display panel itself does not emit light, and a backlight source needs to be provided to provide backlight for it, such as white backlight. The light emitted by the backlight source is converted into the required colors by the respective color filters in the color filter substrate 1, and after being modulated by the liquid crystal layer 3, it is incident on the array substrate 2. The array substrate 2 has a light-shielding region 21 and a plurality of light-transmitting regions 22, and the plurality of light-transmitting regions 22 are defined by the pattern of the light-shielding region 21. The light emitted by the liquid crystal layer 3 can directly exit from the light-transmitting regions 22 in the array substrate 2, while the light emitted by the liquid crystal layer 3 is reflected or absorbed when incident on the light-shielding region 21 and cannot directly exit from the light-shielding region 21 of the array substrate 2.

[0041] As Figure 2 shown, the plurality of color filters in the color filter substrate 1 include a first color filter 11 and a second color filter 12.

[0042] Among them, at least some of the plurality of first color filters 11 have different colors of light transmissible. Exemplarily, the first color filter 11 may include a red color filter R that transmits red light, a green color filter G that transmits green light, and a blue color filter B that transmits blue light. In practical applications, it may also be a color filter that transmits other colors of light, which is not limited herein. The following embodiments will be described by taking the above situation as an example. The plurality of first color filters 11 correspond one-to-one to the plurality of light-transmitting regions 22 in the array substrate 2, and the orthographic projection of the light-transmitting region 22 on the color filter substrate 1 falls within the range of the corresponding first color filter 11. In this way, when the liquid crystal molecules between the first color filter 11 and the light-transmitting region 22 form a channel for light to pass through, the light emitted by the first color filter 11 can directly exit from the light-transmitting region 22, so that at least some of the light emitted by the first color filter 11 can be used to form a display image at a positive viewing angle. Exemplarily, the range of its light-emitting angle is ±θ1.

[0043] The orthographic projection of the light-shielding region 21 on the color filter substrate 1 covers the second color filter 12. For ease of understanding, Figure 1 the arrangement of the second color filter 12 is shown by a dotted line in []. The second color filter 12 is located between adjacent first color filters 11, and at least some of the second color filter 12 has a different color of light transmissible from the adjacent first color filters 11. Whether or not the liquid crystal molecules between the second color filter 12 and the light-shielding region 21 form a channel for light to pass through, the light emitted by the second color filter 12 cannot exit from the light-shielding region 21 above it.

[0044] Therefore, the array substrate 2 in the embodiment of the present utility model further includes a three-dimensional reflection structure 23. The three-dimensional reflection structure 23 is located on the side of the liquid crystal layer 3 away from the second color filter 12. The three-dimensional reflection structure 23 is used to reflect the light transmitted through the second color filter 12 to exit from the light-transmitting area 22. By designing the specific structure of the three-dimensional reflection structure 23 and regulating the deflection state of the liquid crystal molecules on the propagation path of the light emitted by the second color filter 12, the light transmitted through the second color filter 12 can be mixed with the light transmitted through the first color filter 11 within a set light-emitting angle range. The set light-emitting angle range is -θ1 to -θ2 and θ2 to θ1, (θ2 < θ1), which is larger than the light-emitting angle of the light in the front-view display screen, so as not to affect the display effect of the front-view display screen. When viewing the picture formed by the display panel within the viewing angle range of the set angle, the intensity ratio and color ratio of the picture are different from those of the front-view display screen, so that the picture observed within this angle range can be blurred, the picture clarity can be reduced, and anti-peeping display can be realized.

[0045] In the embodiment of the present utility model, by arranging the second color filter 12 and the three-dimensional reflection structure 23 inside the display panel, the intensity and color ratio of the picture are changed within a certain viewing angle range to achieve anti-peeping display, without increasing the thickness of the display panel, nor adding anti-peeping films or liquid crystal cells for light regulation and other structures. Instead, based on a single liquid crystal cell in the display panel, part of the light in the backlight that cannot be used for front-view display is used to achieve anti-peeping display, with a more concise structure and lower cost, and the utilization rate of the backlight is also improved. In addition, the backlight can also be incident from the gap between the first color filter 11 and the second color filter 12 to the three-dimensional reflection structure 23 and be used for anti-peeping display, further improving the utilization rate of the backlight. Therefore, under the same backlight brightness, the display panel in the embodiment of the present utility model can provide a display screen with higher brightness. It can be seen that the display panel provided by the embodiment of the present utility model has the advantages of being thin, light, and low-power consumption.

[0046] The polarization state of the liquid crystal molecules in the liquid crystal layer 3 can be controlled by using a control circuit in the array substrate 2. Exemplarily, the control circuit can be a thin film transistor (Thin Film Transistor, abbreviated as TFT) circuit. Refer to Figure 2 and Figure 3, the array substrate 2 includes a common electrode 26 and a plurality of pixel electrodes 27. The pixel electrodes 27 are located between the common electrode 26 and the liquid crystal layer 3 and are connected to the TFT devices in one-to-one correspondence. Moreover, the pixel electrodes 27 and the color filters are arranged in one-to-one correspondence. The common electrode 26 and the plurality of pixel electrodes 27 are made of a transparent conductive material, such as indium tin oxide (ITO for short), so that light can be transmitted out of the array substrate. Connect the above-mentioned common electrode 26 and pixel electrodes 27 to the control circuit, apply a set electrical signal to the common electrode 26, and the electric field between each pixel electrode 27 and the common electrode 26 can be adjusted respectively by controlling the on-off of the TFT devices, thereby changing the deflection state of the liquid crystal molecules between the pixel electrode 27 and the corresponding color filter.

[0047] Based on the above principle, the display panel provided by the embodiment of the present invention can realize the switching between normal display and anti-peeking display. Specifically, it is realized by controlling the deflection state of the liquid crystal molecules between the second color filter 12 and the three-dimensional reflection structure 23 and the deflection state of the liquid crystal molecules on the propagation path of the light reflected by the three-dimensional reflection structure 23. When and only when a light path is formed in the liquid crystal molecules between the second color filter 12 and the three-dimensional reflection structure 23, and a light path is formed in the liquid crystal molecules on the propagation path of the light reflected by the three-dimensional reflection structure 23, the light-transmitting area 22 includes the light emitted from the first color filter 11 and the second color filter 12. Among them, the light transmitted through the second color filter 12 can be used for anti-peeking display. Exemplarily, at this time, the viewing angle range of the normal viewing angle display screen is ±θ2, then the viewing angle range of the anti-peeking display screen is -θ1~-θ2 and θ2~θ1; when any one of the above two light paths is closed, the light-transmitting area 22 only includes the light emitted from the first color filter 11. At this time, normal display is performed, and the viewing angle range of the display screen is ±θ1. Thus, in different usage scenarios, the display panel can be controlled to perform normal display or anti-peeking display according to requirements, meeting the diverse user needs.

[0048] The principle of the display panel provided by the embodiment of the present invention to realize anti-peeking display has been described above. The arrangement of the second color filter 12 in the display panel can be designed according to specific requirements. The following describes several possible designs.

[0049] Such as Figures 1 to 3In the illustrated embodiment, the plurality of color filters includes a plurality of color filter rows H arranged along a first direction D1. In each color filter row H, a first color filter 11 and a second color filter 12 are alternately arranged along a second direction D2, and the second direction D2 is orthogonal to the first direction D1. In each color filter row H, a second color filter 12 may be included between two adjacent first color filters 11, and the color of the light that the second color filter 12 can transmit is at least different from the color of the light that at least one of its adjacent first color filters 11 can transmit, or is different from the colors of the light transmitted by its adjacent first color filters 11. For example, if a blue color filter B transmits blue light, a green color filter G transmits green light, and a red color filter R transmits red light, then the second color filter 12 between the blue color filter B and the green color filter G can transmit blue light, can also transmit green light, or can also transmit light of other colors, such as red light or yellow light. The second color filter 12 between the green color filter G and the red color filter R can transmit green light, can also transmit red light, or can also transmit light of other colors, such as blue light or yellow light.

[0050] In the embodiment of the present utility model, the second color filter 12 is provided in the color filter row H, and the second color filter 12 is not provided between adjacent color filter rows H. Then, the gaps between the color filter rows H are smaller, and while anti-peeking display can be achieved on the left and right sides of the display panel, a higher resolution of the display screen in the front view angle can be ensured.

[0051] Figure 4 is a top view of another display panel provided by the embodiment of the present utility model; Figure 5 is Figure 4 a cross-sectional view of the illustrated display panel in the AA' direction; Figure 4 The cross-sectional view of the illustrated display panel in the BB' direction can be referred to Figure 3 .

[0052] As Figures 3 to 5 shown, in each color filter row H, two second color filters 12 may be included between two adjacent first color filters 11. At least one of the two second color filters 12 has a different color of the light that it can transmit from the color of the light that its adjacent first color filter 11 can transmit, and the colors of the light that the two second color filters 12 can transmit are different. Thus, according to the first color filter 11 with different light transmission colors, second color filters 12 with different light transmission colors can be matched at its adjacent positions, and the color ratio of the display screen within the viewing angle range where anti-peeking display is to be achieved can be changed to a greater extent, improving the anti-peeking display effect.

[0053] Exemplarily, a second color filter 12a and a second color filter 12b are disposed between the blue color filter B and the green color filter G. Among them, the second color filter 12a is close to the blue color filter B, and the second color filter 12b is close to the green color filter G. Then, the second color filter 12a can be designed to transmit light of other colors except blue light, such as one of green light, red light or yellow light, and the second color filter 12b can be designed to transmit light of other colors except green light, such as one of blue light, red light or yellow light; A second color filter 12c and a second color filter 12d are disposed between the green color filter G and the red color filter R. Among them, the second color filter 12c is close to the green color filter G, and the second color filter 12d is close to the red color filter R. Then, the second color filter 12c can be designed to transmit light of other colors except green light, such as one of blue light, red light or yellow light, and the second color filter 12d can be designed to transmit light of other colors except red light, such as one of blue light, green light or yellow light.

[0054] Figure 6 The top view of another display panel provided by the embodiment of the present invention; Figure 6 The cross-sectional view of the shown display panel in the AA' direction can be referred to Figure 2 ; Figure 7 is Figure 6 The cross-sectional view of the shown display panel in the BB' direction.

[0055] As Figure 2 、 Figure 6 and Figure 7 shown, between every two adjacent first color filters 11 in the first direction D1, a second color filter 12 can also be included. The color of the light that the second color filter 12 can transmit is at least different from the color of the light that at least one of its adjacent first color filters 11 can transmit, or is different from the colors of the light transmitted by its adjacent first color filters 11.

[0056] In practical applications, for the convenience of production, the colors of a column of first color filters 11 arranged along the first direction D1 are usually the same. Then, the light-transmitting color of the second color filter 12 between two adjacent first color filters 11 in the first direction D1 can be set to be different from the light-transmitting color of this column of first color filters 11. By disposing the second color filter 12 between adjacent first color filters 11 in the first direction D1 in the embodiment of the present invention, privacy display can also be realized on the upper and lower sides of the display panel, expanding the viewing angle range where privacy display can be realized.

[0057] In practical applications, the light-transmitting colors of the second color filters 12 in the color filter substrate 1 can be all the same, so that all the second color filters 12 in the color filter substrate 1 can be made in the same process step, thereby saving the process flow and improving the production efficiency.

[0058] Exemplarily, among the multiple first color filters 11, there are three first color filters that can transmit red light, green light, and blue light. In some embodiments of the present invention, the light that the second color filter 12 can transmit can be one of red light, green light, or blue light. Then, the color of the light transmitted by the second color filter 12 is at least different from the color of the light transmitted by some of the first color filters 11, which can change the color ratio of the display screen within the viewing angle range where anti-peeking display is to be achieved to a certain extent, blurring the display screen. And the second color filter 12 can be made in the same process step as one of the first color filters 11, thus not affecting the original process flow of the color film substrate 1, which is beneficial to further improving production efficiency and saving costs.

[0059] In still other embodiments of the present invention, the color of the light that the second color filter 12 can transmit can also be other color lights except red light, green light, and blue light, such as yellow light. Then, the color of the light transmitted by the second color filter 12 is different from the color of the light transmitted by all the first color filters 11, which can change the color ratio of the display screen within the viewing angle range where anti-peeking display is to be achieved to a greater extent, enhancing the anti-peeking display effect.

[0060] Referring to Figure 1 、 Figure 4 and Figure 6 , in the first direction D1, the width or the sum of the widths of the second color filters 12 between adjacent first color filters 11 should be less than the width of the first color filter 11 in the first direction D1. In the second direction D2, the width of the second color filter 12 between adjacent first color filters 11 should be less than the width of the first color filter 11 in the second direction D2, so as to prevent the gap between adjacent first color filters 11 from being too large and reduce the impact on the resolution of the display screen. Exemplarily, the width of the second color filter 12 in the first direction D1 is 1 / 3 to 1 / 2 of the width of the first color filter 11 in the first direction D1, and the width of the second color filter 12 in the second direction D2 is 1 / 3 to 1 / 2 of the width of the first color filter 11 in the second direction D2.

[0061] The specific structure and setting method of the three-dimensional reflection structure 23 in the display panel can also be designed according to specific requirements. Several possible designs are described below.

[0062] Figure 8 Another cross-sectional view of the display panel provided by the embodiment of the present invention, Figure 9 Another cross-sectional view of the display panel provided by the embodiment of the present invention, as Figure 1 or Figure 6 shown, the cross-section of the display panel in the AA' direction can also be the structure as Figure 8 or Figure 9 shown.

[0063] As Figure 8 andFigure 9 As shown, a three-dimensional reflection structure 23 can be correspondingly arranged for each second color resistor 12. The shape of the three-dimensional reflection structure 23 can be one of a triangular prism or a quadrangular prism, the shape of its cross-section is an inverted triangle or a quadrilateral, and the reflection surface of the three-dimensional reflection structure 23 has a set inclination angle, so that the reflection surface of the three-dimensional reflection structure 23 facing the corresponding second color resistor 12 can reflect the light emitted by the second color resistor 12 and the light transmitted through the gap between the first color resistor 11 and the second color resistor 12 to the light-transmitting area 22 above its adjacent first color resistor 11 to achieve anti-peeping display.

[0064] Figure 10 This is a cross-sectional view of another display panel provided by an embodiment of the present invention. As Figure 1 or Figure 6 shown, the cross-section of the display panel in the AA' direction can also be the structure as shown in Figure 2 or Figure 10 shown.

[0065] As Figure 2 Figure 10 shown, two three-dimensional reflection structures 23 can be correspondingly arranged for each second color resistor 12. The two three-dimensional reflection structures 23 are stacked, and a set included angle is provided between the adjacent reflection surfaces of the two three-dimensional reflection structures 23, so that the light emitted by the second color resistor 12 and the light transmitted through the gap between the first color resistor 11 and the second color resistor 12 can be emitted to the light-transmitting area 22 after multiple reflections between the two three-dimensional reflection structures 23, or can be directly reflected to the light-transmitting area 22 by one of the three-dimensional reflection structures 23. For the convenience of description, hereinafter, the three-dimensional reflection structure relatively closer to the color filter substrate 1 will be referred to as the first three-dimensional reflection structure, and the three-dimensional reflection structure 23 relatively closer to the array substrate 2 will be referred to as the second three-dimensional reflection structure.

[0066] In practical applications, the orthographic projection of the first three-dimensional reflection structure on the color filter substrate 1 can cover the orthographic projection of the second three-dimensional reflection structure on the color filter substrate 1, or the orthographic projection of the second three-dimensional reflection structure on the color filter substrate 1 can coincide with the orthographic projection of the first three-dimensional reflection structure on the color filter substrate 1. The dimensional relationship between the first three-dimensional reflection structure and the second three-dimensional reflection structure can be designed according to specific requirements, so that the light emitted by the second color resistor 12 can be reflected to the light-transmitting area 22 as much as possible for anti-peeping display. The shapes of the first three-dimensional reflection structure and the second three-dimensional reflection structure can be the same or different. For example, as Figure 2 shown, both the first three-dimensional reflection structure and the second three-dimensional reflection structure are quadrangular prisms, or, as Figure 10 shown, the first three-dimensional reflection structure is a triangular prism and the second three-dimensional reflection structure is a quadrangular prism.

[0067] It is understandable that, in order to more precisely control the angle of the light reflected by the three-dimensional structure to the light-transmitting area 22, a plurality of mutually stacked three-dimensional reflection structures 23 can also be correspondingly provided for each second color resistor 12. The orthographic projection of the three-dimensional reflection structure 23 on the color film substrate 1 at least partially overlaps with the corresponding second color resistor 12, and the adjacent reflecting surfaces in the adjacent three-dimensional reflection structures 23 are arranged at a set included angle.

[0068] Figure 11 Another cross-sectional view of a display panel provided by an embodiment of the present invention is shown in Figure 4 The cross-section of the display panel shown in the AA' direction can also be as shown in Figure 11 the structure shown.

[0069] As shown in Figure 11 When there are two second color resistors 12 between two adjacent first color resistors 11, the two adjacent second color resistors 12 can share one three-dimensional reflection structure 23 or a plurality of mutually stacked three-dimensional reflection structures 23, thereby reducing the number of three-dimensional reflection structures 23 in the display panel, simplifying the structure, and reducing the difficulty of the manufacturing process.

[0070] Figure 12 Another cross-sectional view of a display panel provided by an embodiment of the present invention.

[0071] As shown in Figure 12 the color film substrate 1 may further include a black matrix 4. The black matrix 4 is provided on the same layer as the plurality of color resistors, and the pattern of the black matrix 4 is complementary to the patterns of the plurality of color resistors. The black matrix 4 can be made of an opaque dark material including but not limited to chromium (Cr), chromium oxide (CrOx), black resin, etc. The black matrix 4 is used to block the light incident from the gaps between the color resistors, prevent crosstalk between the light of different colors transmitted by the adjacent first color resistors 11, and affect the display effect of the front-view display image, thereby improving the contrast of the front-view display image. It is understandable that the black matrix 4 can be provided in the color film substrate 1 as shown in Figure 3 , Figure 5 and Figures 7 to 11 The repeated parts will not be elaborated here.

[0072] As shown in Figure 2 , Figure 3 , Figure 5 and Figures 7 to 12 the side of the three-dimensional reflection structure 23 facing away from the second color resistor 12 may further include a reflective layer 24. The orthographic projection of the reflective layer 24 on the color film substrate 1 covers the orthographic projection of the three-dimensional reflection structure 23 on the color film substrate 1. The light transmitted by the second color resistor 12 can be reflected between the reflective layer 24 and the three-dimensional reflection structure 23 and exit toward the light-transmitting area 22, thereby improving the utilization rate of the light transmitted by the second color resistor 12.

[0073] In specific implementation, the surface of the reflective layer 24 facing the three-dimensional reflection structure 23 can be a plane, so that the manufacturing process of the reflection surface is relatively simple. Alternatively, the surface of the reflective layer 24 facing the three-dimensional reflection structure 23 can be recessed toward the control circuit side. Thus, by adjusting the curvature of the concave surface of the reflective layer 24, etc., as much light incident on the reflective layer 24 as possible can be converged toward the reflection surface of the three-dimensional reflection structure 23, and then reflected by the three-dimensional reflection structure 23 toward the light-transmitting area 22, improving the intensity of the light used for anti-peeping display.

[0074] The materials of the three-dimensional reflection structure 23 and the reflective layer 24 can be one or more of metal materials such as gold, silver, aluminum, copper, etc. The materials of the three-dimensional reflection structure 23 and the reflective layer 24 can be the same or different. Thus, the three-dimensional reflection structure 23 and the reflective layer 24 have a high reflectivity to incident light and can reflect more light toward the light-transmitting area 22. However, at the same time, the three-dimensional reflection structure 23 and the reflective layer 24 may also reflect the ambient light outside the display panel. In this way, it may affect the contrast and clarity of the display image during display, and the display panel cannot be in a completely black state when the screen is off. In addition, structures such as the control circuit included in the array substrate 2 are usually made of metal materials with relatively high reflectivity, such as silver, aluminum, copper, etc., which will also cause the above problems.

[0075] In view of this, the array substrate 2 in the embodiment of the present invention may further include an anti-reflection layer 25. The anti-reflection layer 25 is located on the side of the reflective layer 24 away from the color filter substrate 1, and the orthographic projection of the anti-reflection layer 25 on the color filter substrate 1 covers the orthographic projections of the reflective layer 24, the control circuit, and the three-dimensional reflection structure 23 on the color filter substrate 1. The pattern of the anti-reflection layer 25 is the same as the pattern of the light-shielding area 21 shown in Figure 1 、 Figure 4 and Figure 6 . The anti-reflection layer 25 can avoid the above-mentioned direct exposure of the reflective layer 24, the three-dimensional reflection structure 23, and the control circuit and reflecting the ambient light to affect the display effect by absorbing or reflecting light.

[0076] Exemplarily, the material of the anti-reflection layer 25 can be one of metal oxides such as molybdenum oxide (MoOx) or niobium oxide (NbOx), or a stacked structure thereof, or a stacked structure of at least one of MoOx and NbOx and inorganic materials such as silicon oxide (SiOx) and silicon nitride (SiNx). By using different materials to perform destructive interference on ambient light of different wavelengths, the purpose of anti-reflection can be achieved. Moreover, MoOx and NbOx are black materials, and SiOx and SiNx are transparent materials. When the screen is off, the display screen can appear black, and the display uniformity is better. In a possible implementation manner, the anti-reflection layer 25 adopts a single layer of MoOx; in another possible implementation manner, the anti-reflection layer 25 is stacked by SiNx, MoOx, and Mo. It can be understood that the materials, stacking order, thickness, etc. of each film layer in the anti-reflection layer 25 can all be designed according to actual needs to meet diverse product requirements. Moreover, the stacked structure is also beneficial to increasing the process fault tolerance rate and improving the production yield.

[0077] As Figure 2 , Figure 3 , Figure 5 and Figures 7 to 12 shown, the reflective layer 24 can be located between the control circuit and the anti-reflection layer 25. On the one hand, since the array substrate 2 includes electrodes for controlling the deflection of liquid crystal molecules, setting the reflective layer 24 on the side of the control circuit away from the liquid crystal layer 3 can prevent the reflective layer 24 made of metal material from affecting the electric field between the electrodes. On the other hand, the reflective layer 24 has a reflective effect on both the light inside the display panel and the ambient light, which can cooperate with the anti-reflection layer 25 to achieve a better anti-reflection effect. At the same time, it can also prevent the heat from being too high due to the absorption of light in the anti-reflection layer 25, improving the reliability of the display panel and extending the service life of the display panel.

[0078] Based on the same inventive concept, the present invention also provides a method for manufacturing a display panel, including separately manufacturing the color filter substrate 1 and manufacturing the array substrate 2; performing a cell process on the color filter substrate 1 and the array substrate 2; filling liquid crystal between the color filter substrate 1 and the array substrate 2; and attaching polarizers POL1 and POL2 to the surfaces of the first substrate G1 and the second substrate G2 away from the liquid crystal layer 3 and other steps.

[0079] Specifically, the manufacturing process of the color filter substrate 1 is as follows: forming a plurality of color resistances on the first substrate G1. Among them, the first substrate G1 uses a substrate made of a transparent material, such as a glass substrate. The color resistances can be made by a coating process, and the color resistances for transmitting light of different colors are sequentially formed in different steps using a mask plate with corresponding patterns. In some embodiments, after forming a plurality of color resistances, a black matrix 4 can also be formed on the first substrate. The main steps for manufacturing the black matrix 4 include sputtering, coating, etching, etc.

[0080] The manufacturing process of the array substrate 2 is as follows: an anti-reflection layer 25, a reflective layer 24, a control circuit, and a three-dimensional reflective structure 23 are sequentially formed on the second substrate G2. Among them, the second substrate G2 is also a substrate made of a transparent material, such as a glass substrate. The anti-reflection layer 25 and the reflective layer 24 can be fabricated using a photolithography process. The two are stacked, and the patterns of the anti-reflection layer 25 and the reflective layer 24 can be the same, thereby reducing the number of mask plates during the manufacturing process, saving production costs. The patterns of the anti-reflection layer 25 and the black matrix 4 in the color filter substrate 1 can also be the same, so that the two can share the same mask plate, further saving production costs. A planarization layer needs to be deposited on the reflective layer 24 to fabricate the traces in the control circuit using a patterning process. The planarization layer can be made of a light-transmitting dielectric material including but not limited to SiOx or SiNx, etc. The control circuit is a TFT circuit, which includes multiple conductive layers. The main steps of fabricating the TFT circuit include sequentially forming the patterns of the gate layer (Gate), the gate insulating layer (GI), and the source-drain layer (SD). In addition, it also includes forming a common electrode 26 and a pixel electrode layer including multiple pixel electrodes 27. The number and arrangement order of the multiple conductive layers, the common electrode, and the pixel electrode layer in the above control circuit can be adjusted according to requirements and are not limited here. After forming the control circuit and each electrode, a protective layer (PVX) can be covered on it. The protective layer can be made of a light-transmitting dielectric material including but not limited to SiOx or SiNx, etc. The three-dimensional reflective structure 23 is formed on the protective layer and can be fabricated by stacking a material with a relatively large reflectivity (such as a metal material) into the desired shape through multiple photolithography processes. In the actual manufacturing process, due to the influence of process accuracy, the reflective surface of the three-dimensional reflective structure 23 may not be a strictly flat surface and may have slight protrusions or depressions at some positions.

[0081] After performing steps such as aligning the color filter substrate 1 and the array substrate 2, filling with liquid crystal, and attaching a polarizer, etc., the display panel provided by the present invention can be obtained. The manufacturing method of the display panel provided by the embodiments of the present invention can be compatible with the existing process production mode, without the need to use new production equipment, thereby effectively controlling costs and being easy to achieve mass production.

[0082] By binding a control circuit board, such as a flexible printed circuit (Flexible Printed Circuit, abbreviated as FPC), to the display panel, the display panel can be disposed in a display device and form an electrical connection with other components in the display device for display applications.

[0083] Based on the same inventive concept of the utility model, the utility model further provides a display device. The display device includes a backlight module and any one of the display panels in the above embodiments. The display panel is located on the light-emitting side of the backlight module. The backlight module can be a direct-lit backlight module or an edge-lit backlight module. The backlight module can use, including but not limited to, MiniLED, Micro LED devices and their packaging structures, etc. as light sources. Only by setting a single liquid crystal cell (i.e., any one of the display panels in the above embodiments) in the display device can anti-peeking display be achieved. There is no need to additionally set up structures such as liquid crystal cells or anti-peeking films in the display device to achieve anti-peeking display. The structure is concise and the backlight utilization rate is higher, with the characteristics of being thin, light and low power consumption.

[0084] Although the preferred embodiments of the present utility model have been described, those skilled in the art can make additional changes and modifications to these embodiments once they learn the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments as well as all changes and modifications that fall within the scope of the present utility model.

[0085] Obviously, those skilled in the art can make various changes and modifications to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these changes and modifications.

Claims

1. A display panel, characterized in that, It comprises a color filter substrate, an array substrate and a liquid crystal layer located between the color filter substrate and the array substrate, wherein the side where the color filter substrate is located is the light incident side of the display panel, and the side where the array substrate is located is the light emitting side of the display panel; The color filter substrate includes a plurality of color resists, the plurality of color resists include a first color resist and a second color resist, the second color resist is located between adjacent first color resists, and at least a portion of the second color resist and the adjacent first color resist transmit light of a different color; the array substrate has a light-shielding area and a plurality of light-transmitting areas, the orthographic projection of the light-shielding area on the color filter substrate covers the second color resist, the light-transmitting area corresponds to the first color resist one by one, and the orthographic projection of the light-transmitting area on the color filter substrate falls within the range of the corresponding first color resist; The array substrate includes a three-dimensional reflective structure, which is located on the side of the liquid crystal layer away from the second color resist; the three-dimensional reflective structure is used to reflect the light transmitted by the second color resist to the light-transmitting area for emission, so that the light transmitted by the second color resist is mixed with the light transmitted by the first color resist within a set light-emitting angle range.

2. The display panel according to claim 1, wherein One or more three-dimensional reflective structures are correspondingly arranged for each second color resist, and the orthographic projections of the one or more three-dimensional reflective structures on the color film substrate at least partially overlap with the corresponding second color resist; wherein the multiple three-dimensional reflective structures are stacked, and adjacent reflective surfaces in adjacent three-dimensional reflective structures are arranged at a set angle.

3. The display panel according to claim 2, wherein Among the multiple three-dimensional reflective structures, the orthographic projection of a three-dimensional reflective structure closer to the color film substrate on the color film substrate covers the orthographic projection of a three-dimensional reflective structure farther from the color film substrate on the color film substrate.

4. The display panel according to claim 2, characterized in that, The shapes of the plurality of three-dimensional reflective structures are the same or at least partially different, and the shape of the three-dimensional reflective structure is a triangular prism or a quadrangular prism.

5. The display panel according to claim 1, characterized in that, The array substrate also includes a control circuit and a reflective layer, wherein the reflective layer is located on a side of the control circuit away from the three-dimensional reflective structure, and the orthographic projection of the reflective layer on the color film substrate covers the orthographic projection of the three-dimensional reflective structure on the color film substrate. The light passing through the second color resist can be reflected between the reflective layer and the three-dimensional reflective structure and emitted from the light-transmitting area.

6. The display panel according to claim 5, wherein The surface of the reflective layer facing the three-dimensional reflective structure is a plane, or the surface of the reflective layer facing the three-dimensional reflective structure is concave toward one side of the control circuit.

7. The display panel according to claim 5, characterized in that The array substrate further includes an anti-reflection layer, which is located on a side of the reflective layer away from the color film substrate, and an orthographic projection of the anti-reflection layer on the color film substrate covers an orthographic projection of the reflective layer, the control circuit and the three-dimensional reflective structure on the color film substrate.

8. The display panel according to any one of claims 1-7, characterized in that, The colors of the light transmitted through each of the second color blocks are the same, and the colors of the light transmitted through the second color blocks are different from the colors of the light transmitted through at least some of the first color blocks.

9. The display panel according to any one of claims 1-7, characterized in that, At least some of the adjacent first color resists include two second color resists, and the colors of light transmitted by the two second color resists are different.

10. The display panel according to any one of claims 1-7, characterized in that, The multiple color filters include multiple color filter rows arranged along a first direction. In each of the multiple color filter rows, a first color filter and a second color filter are alternately arranged along a second direction, and the second direction is orthogonal to the first direction.

11. The display panel according to claim 10, wherein One second color filter is further included between every two first color filters adjacent in the first direction.

12. The display panel according to claim 10, wherein The width of the second color filter in the first direction is less than or equal to the width of the first color filter in the first direction; the width of the second color filter in the second direction is less than or equal to the width of the first color filter in the second direction.

13. The display panel according to any one of claims 1-7, characterized in that, The color filter substrate further includes a black matrix, the black matrix is disposed on the same layer as the multiple color filters, and the pattern of the black matrix is complementary to the pattern of the multiple color filters.

14. A display device, characterized in that, It includes a backlight module and a display panel according to any one of claims 1-13, and the display panel is located on the light-emitting side of the backlight module.

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