Display panel and display device

Abstract

The application belongs to the technical field of display, and particularly relates to a display panel and a display device, the display panel comprising a first substrate, the first substrate comprising a substrate and a color resistance layer, the color resistance layer comprising a plurality of color resistance blocks, each color resistance block being provided with a reflection channel, external light being capable of entering a back side of the color resistance block from a front side of the color resistance block, the reflection channel penetrating through opposite sides of the color resistance block, and the reflection channel having an included angle with the substrate; further comprising a light adjusting unit, the light adjusting unit being arranged on the back side of the color resistance block, the light adjusting unit comprising a light adjusting part, the light adjusting part having an extension direction perpendicular to the extension direction of the reflection channel, the light adjusting part having a privacy state, in the privacy state, the light adjusting part being capable of reflecting external light entering in parallel to the extension direction of the reflection channel back into the reflection channel and emitting out along the extension direction of the reflection channel. The application can realize a privacy mode, and ensure the thickness of the display panel and the light transmittance of the display panel while realizing the privacy mode.

Description

Technical Field

[0001] This application belongs to the field of display technology, specifically relating to a display panel and display device. Background Technology

[0002] With the development of display technology, electronic devices with displays are being used more and more widely. Displays on electronic devices offer wide viewing angles, ensuring that users at different viewing angles can see the information displayed. While enjoying the visual experience brought by wide viewing angles, people also want to effectively protect trade secrets and personal privacy to avoid business losses or embarrassment caused by the leakage of screen information. Therefore, in addition to the requirement of wide viewing angles, many situations also require display devices to have the function of switching between wide and narrow viewing angles.

[0003] Currently, the main privacy protection technologies adopted are external privacy films or built-in privacy devices. The core idea is to block the light from the left and right sides by using the principle of louvers to achieve privacy. However, these privacy protection modes all require a certain height to achieve privacy, which will increase the thickness of the panel and reduce the amount of light transmitted. Summary of the Invention

[0004] The purpose of this application is to provide a display panel and display device that can achieve privacy protection while ensuring the thickness of the display panel and the amount of light transmitted through the display panel.

[0005] A first aspect of this application provides a display panel, the display panel including a first substrate, the first substrate including a substrate base and a color resist layer disposed on the substrate base, the color resist layer including a plurality of color resist blocks of different colors; each color resist block is provided with a reflection channel, allowing external light to enter the back side of the color resist block from the front side, the reflection channel extending from the front side of the color resist block to the back side of the color resist block, the extending direction of the reflection channel forming an angle with the substrate base; the first substrate further includes:

[0006] A dimming unit is provided on the back side of the color block. The dimming unit includes a dimming section. The extending direction of the dimming section is perpendicular to the extending direction of the reflection channel. The dimming section has a privacy protection state. In the privacy protection state, the dimming section can reflect external light rays that enter parallel to the extending direction of the reflection channel back into the reflection channel and emit them out parallel to the extending direction of the reflection channel.

[0007] In one exemplary embodiment of this application, the dimming unit further includes a dimming electrode, which is disposed on the side of the dimming section away from the color resist layer, and the dimming section can be in the privacy state under the action of the dimming electrode.

[0008] In one exemplary embodiment of this application, the dimming unit further has a light-transmitting state;

[0009] The dimming electrode has a first state and a second state, one of which is an energized state and the other is an de-energized state.

[0010] The dimming unit is in the privacy-proof state when the dimming electrode is in the first state; the dimming unit is in the light-transmitting state when the dimming electrode is in the second state.

[0011] In one exemplary embodiment of this application, the color resist block is provided with a plurality of reflection channels, and at least two of the reflection channels extend in different directions.

[0012] In one exemplary embodiment of this application, the color resist block is provided with a first reflection channel and a second reflection channel, and the extension direction of the first reflection channel and the second reflection channel are symmetrically arranged with respect to each other;

[0013] The dimming unit includes a first part and a second part, the first part and the second part corresponding to the first reflection channel and the second reflection channel, respectively.

[0014] In one exemplary embodiment of this application, the extending direction of the reflection channel forms an angle α with the substrate, and the value of the angle α is in the range of 30°≤α≤90°.

[0015] In one exemplary embodiment of this application, the display panel further includes a second substrate and a liquid crystal layer, wherein the first substrate and the second substrate are disposed opposite each other, and the liquid crystal layer is disposed between the first substrate and the second substrate;

[0016] The first substrate further includes a light-shielding layer, which includes an array of light-shielding areas and light-transmitting areas. The orthographic projection of the color resist block covers the light-transmitting area, and the light-shielding area is provided with the reflection channel.

[0017] In one exemplary embodiment of this application, the color resist layer includes color resist blocks arranged in an array, and the reflection channels of the color resist blocks in the same column are interconnected;

[0018] The reflection channels in the same column of the light-shielding area are interconnected.

[0019] In one exemplary embodiment of this application, the dimming unit includes an electrochromic material; and / or

[0020] The display panel also includes a common electrode, which is located on the side of the dimming electrode away from the color resist layer, and the common electrode is insulated from the dimming electrode.

[0021] A second aspect of this application provides a display device, the display device comprising:

[0022] Driver chip;

[0023] The display panel described in any of the preceding claims, wherein the display panel is electrically connected to the driver chip.

[0024] The display panel and display device of this application have at least the following beneficial effects:

[0025] The first substrate in this display panel includes a color resist layer and a dimming unit. The color resist layer includes multiple color resist blocks of different colors, each with a reflective channel extending through it. The dimming unit is located on the back side of the color resist layer and includes a dimming section. The dimming section extends perpendicularly to the extension direction of the reflective channel. The dimming section reflects external light entering through the reflective channel back into the reflective channel, causing the external light to return along its original path and generating reflection. This prevents users in the direction of the reflective channel from observing the effective display image, effectively preventing the content of the display panel from being viewed and achieving a privacy mode at the corresponding angle. Furthermore, by placing the reflective channel inside the color resist layer, the privacy function can be achieved while maintaining the thickness of the display panel and ensuring the light transmittance of the display panel.

[0026] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0027] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0028] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0029] Figure 1 This shows a schematic diagram of the structure provided in Embodiment 1 or Embodiment 2 of this application, which has a color resist layer and a dimming unit on the substrate.

[0030] Figure 2 This illustration shows a schematic diagram of the structure provided in Embodiment 1 or Embodiment 2 of this application, showing the external light reflected back by the reflective surface;

[0031] Figure 3This shows a schematic diagram of the structure of the dimming unit provided in Embodiment 1 or Embodiment 2 of this application, where the first and second surfaces are reflective.

[0032] Figure 4 This illustrates a schematic diagram of the structure provided in Embodiment 1 or Embodiment 2 of this application, showing that external light does not undergo reflection at the dimming unit;

[0033] Figure 5 This shows a schematic diagram of the structure of the dimming unit provided in Embodiment 1 or Embodiment 2 of this application, where the first and second surfaces are translucent.

[0034] Figure 6 This illustration shows a schematic diagram of the structure of the display panel provided in Embodiment 1 or Embodiment 2 of this application;

[0035] Figure 7 This paper shows a schematic diagram of the connection between the driver chip and the dimming electrode provided in Embodiment 1 or Embodiment 2 of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Display device;

[0038] 10. Display panel; 100. First substrate; 110. Substrate; 121. Color resist block; 130. Reflection channel; 130a. First reflection channel; 130b. Second reflection channel; 140. Dimming unit; 141. Dimming section; 141a. First part; 141b. Second part; 142. Dimming layer; 143. Dimming electrode; 151. Light-shielding area; 160a. First piece; 160b. Second piece; 160c. Third piece; 200. Common electrode; 300. Second substrate; 400. Liquid crystal layer;

[0039] 20. Driver chip. Detailed Implementation

[0040] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0041] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0042] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0043] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0044] Example 1

[0045] Embodiment 1 of this application provides a display panel 10, which can be a liquid crystal display (LCD), a micro light-emitting diode (micro LED), or an organic light-emitting diode (OLED), but is not limited to these.

[0046] Please see Figure 1 As shown, this display panel 10 includes a first substrate 100, which includes a substrate 110 and a color resist layer disposed on the substrate 110. The substrate 110 may be a glass substrate, but is not limited thereto, and may also be a substrate of other materials, such as PI material, etc.

[0047] It should be noted that when the display panel 10 is a liquid crystal display panel 10, the first substrate 100 is a color filter substrate or an array substrate. When the display panel 10 is a micro light-emitting diode or an organic light-emitting diode, the first substrate 100 is an array substrate.

[0048] The color resist layer includes multiple color resist blocks 121 of different colors, such as red color resist block 121, green color resist block 121 and blue color resist block 121; or red color resist block 121, green color resist block 121, blue color resist block 121 and white color resist block 121, etc., and is not limited to these.

[0049] Please see below. Figure 2 or Figure 3 As shown, the color resist block 121 is provided with a linear reflection channel 130. The reflection channel 130 is a hollow area. The reflection channel 130 extends from the front side of the color resist block 121 to the back side of the color resist block 121. That is, the reflection channel 130 extends through the color resist block 121, exposing the film layer of the color resist layer on the side away from the substrate 110.

[0050] It should be noted that the front side of this color resist block 121 is the side where external light enters, and the back side of the color resist block 121 is the side where external light exits.

[0051] Furthermore, the extension direction of this reflection channel 130 forms an angle α with the substrate 110, and this angle α is a non-zero angle. External light can pass through this reflection channel 130 and enter the color resist block 121 parallel to this reflection channel 130.

[0052] Please see Figure 2 or Figure 3 As shown, the first substrate 100 also includes a dimming unit 140, which has a dimming section 141. The extending direction of the dimming section 141 is perpendicular to the extending direction of the reflection channel 130. The dimming section 141 has a privacy mode. In the privacy mode, the dimming section 141 can completely reflect light incident parallel to the extending direction of the reflection channel 130 back into the reflection channel 130. The reflected light will then exit along the same path as the extending direction of the reflection channel 130. That is, external light returns at the dimming section 141 along its original path, achieving a reflection effect. This makes the display screen appear white or bright at the corresponding viewing angle, affecting information reading and achieving the privacy function.

[0053] In some embodiments, the dimming unit 141 can also be disposed in the extension direction of the reflection channel 130. It mainly utilizes the fact that some light rays are perpendicular to the dimming unit 141, while the remaining light rays are not perpendicular to the dimming unit 141. After the two different light rays are superimposed, light rays different from those viewed from a normal viewing angle are generated. That is, the information acquisition at the corresponding angle is different from the information acquisition at a normal viewing angle, thereby achieving the function of privacy protection.

[0054] The dimming unit 140 is located on one side of the color resist layer, which can be the side of the color resist layer that is close to the substrate 110, i.e., the front side of the color resist block 121; or the side of the color resist layer that is far away from the substrate 110, i.e., the back side of the color resist block 121.

[0055] When the first substrate 100 is a color filter substrate, the dimming unit 140 is located on the side of the color resist layer away from the substrate 110. When the first substrate 100 is an array substrate, the dimming unit 140 is located on the side of the color resist layer closer to the substrate 110. However, it is not limited to this. As long as the dimming unit 140 can return the external light along its original path, that is, when the first substrate 100 is a color filter substrate, the dimming unit 140 can also be located on the side of the color resist layer closer to the substrate 110, without the need to open a reflection channel 130 on the color resist block 121; when the first substrate 100 is an array substrate, the dimming unit 140 is located on the side of the color resist layer away from the substrate 110, without the need to open a reflection channel 130 on the color resist block 121.

[0056] Understandably, since this reflection channel 130 is a hollow area, when external light enters the reflection channel 130 along a direction parallel to its extension, this external light will not be refracted within the reflection channel 130. Please refer to... Figure 3 As shown, when external light reaches the dimming unit 141, the external light is reflected at the dimming unit 141. Since the extension direction of the dimming unit 141 is perpendicular to the extension direction of the reflection channel 130, the external light will be reflected back into the reflection channel 130 along the original path and then emitted from the reflection channel 130 into the user's eyes, thus generating reflection. This prevents the user from obtaining display information normally at the corresponding angle and from viewing the display screen 10, thereby achieving the privacy mode at the corresponding angle.

[0057] In other words, this application uses the reflection channel 130 on the color resist layer and the dimming part 141 in the dimming unit 140 to return the external light at the corresponding angle according to the incident path, thereby causing reflection at the corresponding angle, so that the user cannot obtain the information in the display panel 10 at the viewing angle, thereby achieving privacy protection.

[0058] Furthermore, this application utilizes the method of opening a reflection channel 130 in the color resist layer to achieve the privacy function, which can reduce the investment in the privacy structure and ensure the thickness of the display panel 10; moreover, opening a reflection channel 130 on the color resist block 121 will not affect the light transmittance of the display panel 10.

[0059] For example, when the display panel 10 is a liquid crystal display panel 10 and the first substrate 100 is a color filter substrate, the display panel 10 also includes a common electrode 200. This common electrode 200 can be disposed on the color filter substrate or in other locations, depending on the type of the display panel 10. For example, when the display panel 10 is a TN type display panel 10, the common electrode 200 is disposed on the color filter substrate, and the common electrode 200 is disposed on the side of the dimming unit 140 away from the color resist layer. That is, the dimming unit 140 is disposed between the common electrode 200 and the color resist layer. Each color resist block 121 on the color resist layer has a reflection channel 130. This reflection channel 130 connects the upper and lower sides of the color resist block 121, that is, the reflection channel 130 is disposed through the color resist block 121. When a user's line of sight enters along the direction parallel to the extension of the reflection channel 130, the line of sight will be reflected at the dimming unit 141. The dimming unit 141 can then project this line of sight out from the color block 121 along the original path of entry and feed it back into the user's eyes to achieve the reflection function. This will prevent the user from obtaining the display image at the corresponding angle from viewing the corresponding angle, thereby achieving the privacy function.

[0060] For ease of explanation, the following description will use the description that the display panel 10 is a TN type liquid crystal display panel 10 and the first substrate 100 is a color filter substrate.

[0061] It is worth mentioning that this display panel 10 includes a privacy mode and a sharing mode, which can be switched between each other. Please refer to [link / reference]. Figure 2 and Figure 4 As shown.

[0062] Please see Figure 3 As shown, this dimming unit 141 can be in a privacy mode when the display panel 10 is in privacy mode. That is, external light can be reflected at the dimming unit 141, and the reflected light will exit along its original path, thus entering the user's eyes. This creates glare at the viewing angle, making it impossible for the user to see the screen, thereby achieving privacy mode. Please refer to... Figure 5 As shown, this dimming unit 141 can be in a transparent state when the display panel 10 is in the sharing mode, that is, external light can enter the color resist block 121 through the dimming unit 141 without being reflected on this surface, thus realizing the sharing mode, and the display screen can be obtained when viewing the display panel 10 from any angle.

[0063] In order to form different privacy and transparency states in different modes, the dimming unit 141 can adopt a structure such as reflective particles or electrochromic materials to realize the switching between the privacy state and the transparency state of the dimming unit 141, so as to realize the switching between privacy mode and sharing mode.

[0064] In the embodiments of this application, please refer to Figure 3or Figure 5 As shown, the dimming unit 140 includes a dimming layer 142 and a dimming electrode 143. The dimming layer 142 is disposed on the side of the color resist layer away from the substrate 110. A plurality of dimming sections 141 are provided within the dimming layer 142. The dimming layer 142 allows for planarization of the dimming sections 141, and each dimming section 141 corresponds to a color resist block 121. See also... Figure 3 As shown, the dimming electrode 143 is disposed on the side of the dimming layer 142 away from the color resist layer.

[0065] The dimming electrode 143 has a first state and a second state, one of which is an energized state and the other is an de-energized state. The dimming unit 141 is in a privacy-protected state when the dimming electrode 143 is in the first state; the dimming unit 141 is in a light-transmitting state when the dimming electrode 143 is in the second state. By adjusting the privacy-protected state or the light-transmitting state of the dimming unit 141 according to the state of the dimming electrode 143, the display panel 10 can be switched between a privacy-protected mode and a sharing mode, making the switching method simpler and more convenient.

[0066] For example, this dimming electrode 143 can control the dimming unit 141 to be in a privacy-prevention state in the first state (powered state), so that external light will return along its original path at the dimming unit 141, producing a reflective effect. See also Figure 5 As shown, the dimming electrode 143 can control the dimming unit 141 to be in a transparent state in the second state (power-off state). The privacy mode and sharing mode are switched by whether the dimming electrode 143 is powered on or off.

[0067] In this embodiment, the dimming unit 141 includes an electrochromic material, which is a nickel-magnesium alloy. This dimming unit 141 can determine whether it is in a privacy-protected state or a transparent state based on the energization state of the dimming electrode 143.

[0068] It is worth mentioning that this dimming electrode 143 is made of a transparent material, such as indium tin oxide (ITO). The dimming electrode 143 is located on the side of the common electrode 200 near the substrate 110, and the dimming electrode 143 and the common electrode 200 are insulated from each other to avoid mutual interference, ensuring both display effect and privacy protection. This dimming electrode 143 can be designed as a single surface, thereby simultaneously controlling the state of each dimming unit 141 on the side near the reflection channel 130, making the control method simpler and more convenient.

[0069] Furthermore, this dimming electrode 143 can be electrically connected to the driver chip 20, and can be energized or de-energized under the action of the driver chip 20. When the dimming electrode 143 is energized, the dimming section 141 exhibits mirror reflection, achieving a reflective effect and thus realizing a privacy mode; when the dimming electrode 143 is de-energized, the dimming section 141 is transparent, allowing light to pass through it and enter the display panel 10 to obtain information from the display panel 10, thus realizing a sharing mode.

[0070] It should be noted that this display panel 10 can achieve single-sided privacy protection, meaning that privacy protection can only be achieved on one side of the display panel 10; or it can achieve double-sided privacy protection, meaning that privacy protection can be achieved on both sides of the display panel 10.

[0071] Furthermore, the light emitted from the liquid crystal molecules will not be affected by the dimming unit 141, that is, the light emitted from the liquid crystal molecules will not be affected by the state of the dimming unit 141 and will still be emitted along the original path.

[0072] The color resist block 121 has multiple reflection channels 130, with at least two reflection channels 130 extending in different directions. By providing multiple reflection channels 130 on the color resist block 121, the amount and range of external light entering can be increased, enabling multi-angle privacy protection during privacy screening, making it impossible for users to effectively obtain the display information of the display panel 10, thus improving the privacy protection effect.

[0073] For example, please see Figure 3 or Figure 5As shown, each color resist block 121 is provided with a first reflection channel 130a and a second reflection channel 130b. These first and second reflection channels 130a and 130b can be formed during the fabrication of the color resist block 121, or they can be formed on the color resist block 121 after all color resist blocks 121 have been fabricated. The specific design can be tailored to different embodiments. The extension direction of the first reflection channel 130a and the extension direction of the second reflection channel 130b are symmetrically arranged relative to the centerline axis of the color resist block 121. The dimming unit 141 includes a first portion 141a and a second portion 141b, both of which are perpendicularly corresponding to the first and second reflection channels 130a and 130b. In privacy mode, the first part 141a and the second part 141b are in a privacy-protected state. External light entering through the first reflection channel 130a is reflected by the first part 141a, and external light entering through the second reflection channel 130b is reflected by the second part 141b, thus achieving dual-sided privacy protection. In sharing mode, the first part 141a and the second part 141b are in a transparent state. External light entering through the first reflection channel 130a enters the display panel 10 through the first part 141a, and external light entering through the second reflection channel 130b enters the display panel 10 through the second part 141b, thus acquiring the screen information of the display panel 10 and achieving sharing mode.

[0074] In some embodiments, the dimming layer 142 may include a plurality of dimming units 141, each dimming unit 141 corresponding to a reflection channel 130, that is, one reflection channel 130 corresponds to one dimming unit 141, which means that it is not limited to one color block 121 corresponding to one dimming unit 141.

[0075] In some other embodiments, each dimming part 141 may correspond to a dimming electrode 143, that is, the dimming electrode 143 is designed separately, and the dimming part 141 can be selected to reflect the mirror surface as required.

[0076] In the embodiments of this application, please refer to Figure 3 or Figure 5 As shown, the extension direction of the reflection channel 130 forms an angle α with the substrate 110. The value of the angle α is in the range of 30°≤α≤90°, such as 30°, 45°, 60°, 90°, etc. That is, when the dimming unit 141 is in the privacy mode, when external light enters the reflection channel 130 at the angle α, the direction of this external light is parallel to the extension direction of the reflection channel 130. The external light is reflected at the dimming unit 141 and returns along the original path, generating reflection. Under the angle α, the display image of the display panel 10 cannot be obtained, thereby realizing the privacy function.

[0077] For example, when the angle α between the extension direction of the reflection channel 130 and the substrate 110 is 45°, and the angle between the external light and the substrate 110 is also 45°, the external light will enter the reflection channel 130 parallel to its extension direction. When the display panel 10 is in shared mode, the external light entering at this angle will not be reflected at the dimming unit 141, and the normal display image of the display panel 10 will be obtained. When the display panel 10 is in privacy mode, the dimming electrode 143 controls the dimming unit 141 to be in privacy mode. The external light entering at a 45° angle will be reflected from the dimming unit 141. Since the dimming unit 141 is perpendicular to the reflection channel 130, the external light will return to the reflection channel 130 at the dimming unit 141 along its original path, thereby generating reflection. This prevents the user from effectively obtaining the display image of the display panel 10 at a 45° angle, thus achieving privacy mode.

[0078] It should be noted that when the angle α formed between the extension direction of the reflective channel 130 and the substrate 110 is 90°, the reflective channel 130 is perpendicular to the substrate 110, and the dimming unit 141 is perpendicular to the reflective channel 130. When external light enters the display panel 10 perpendicularly and the dimming unit 141 is in a privacy mode, the external light will return to the reflective channel 130 along its original path, thereby preventing users from viewing the screen from the front and avoiding the acquisition of effective display information from the front view. That is, when the angle α formed between the extension direction of the reflective channel 130 and the substrate 110 is 90°, effective display information cannot be obtained from the front view, while display information can be viewed normally from other angles.

[0079] In other words, this application solution can achieve not only unilateral and bilateral privacy protection, but also frontal privacy protection.

[0080] Please see Figure 6 As shown, the display panel 10 also includes a second substrate 300 and a liquid crystal layer 400 disposed between the first substrate 100 and the second substrate 300. The first substrate 100 and the second substrate 300 are disposed in a cell. The second substrate 300 can be an array substrate, on which scan lines, gates, data lines, thin film transistors, pixel electrodes, etc. can be provided.

[0081] The first substrate 100 also includes a light-shielding layer to prevent mutual interference between adjacent color resist blocks 121. This light-shielding layer includes an array of light-shielding areas 151 and a light-transmitting area. The orthogonal projection of the color resist block 121 covers the light-transmitting area. In order to improve the privacy protection effect, the light-shielding area 151 is also provided with the same reflection channel 130 as the color resist block 121, so as to increase the amount of light reflection, improve the reflection effect, and thus improve the privacy protection effect of the display panel 10.

[0082] The color resist block 121 on the entire first substrate 100 and the reflection channel 130 in the light-shielding area 151 are interconnected to expand the range of external light and improve the privacy protection effect.

[0083] It should be noted that the colors of the color resist blocks 121 in the same column can be the same or different, and the specific design can be made according to different embodiments.

[0084] In this embodiment, the color resist blocks 121 in the same column are of the same color, while the color resist blocks 121 in adjacent columns are of different colors. For example, the first column is red color resist blocks 121, the second column is green color resist blocks 121, and the third column is blue color resist blocks 121. Each column of color resist blocks 121 is provided with a light-shielding area 151; and the reflection channels 130 of the color resist blocks 121 in the same column are interconnected; the reflection channels 130 in the light-shielding areas 151 in the same column are interconnected.

[0085] That is, the reflection channel 130 of the color block 121 and the reflection channel 130 of the light-blocking area 151 on the same column are interconnected, which can increase the range of external light entering and thus improve the privacy protection effect.

[0086] For example, please see Figure 3 or Figure 5 As shown, both the color resist block 121 and the light-shielding area 151 include a first block 160a, a second block 160b, and a third block 160c. The first block 160a and the third block 160c are respectively disposed on opposite sides of the second block 160b and are spaced apart from each other. The first block 160a and the third block 160c form a reflection channel 130 with the second block 160b. The first block 160a, the second block 160b, and the third block 160c in the same column are all connected. The angle α formed between the extension direction of the reflection channel 130 and the substrate 110 is not 90°. In the cross-section of the substrate 110 in the thickness direction, the first block 160a and the third block 160c form a right triangle, and the second block 160b forms an isosceles triangle. The vertex of the isosceles triangle is in contact with the dimming part 141.

[0087] It is understandable that when the angle α formed between the extension direction of the reflection channel 130 and the substrate 110 is 90°, the color resist block 121 / light-shielding area 151 is divided into two parts. That is, on the cross section in the thickness direction of the substrate 110, the color resist block 121 / light-shielding area 151 is composed of two small cuboids or cubes. The color resist block 121 and the light-shielding area 151 include a reflection channel 130, and the reflection channel 130 is located at the center of the color resist block 121 and the black matrix.

[0088] In this embodiment, the dimming portion 141 is also an isosceles triangle in the cross-section along the thickness direction of the substrate 110. The dimming portion 141 has a first portion 141a and a second portion 141b. The first portion 141a and the second portion 141b have equal lengths and correspond to the first reflection channel 130a and the second reflection channel 130b, respectively. The extension direction of the first portion 141a is perpendicular to the extension direction of the first reflection channel 130a, and the extension direction of the second portion 141b is perpendicular to the extension direction of the second reflection channel 130b, so as to ensure that external light can be completely reflected in the privacy mode, thus ensuring the reflection effect and the privacy effect.

[0089] Please see below. Figure 3 or Figure 5 As shown, the apex of the dimming unit 141 intersects with the apex of the second block 160b to ensure that the light in the reflection channel 130 can be completely reflected back into the reflection channel 130 by the first part 141a and the second part 141b, thus ensuring the privacy protection effect.

[0090] Example 2

[0091] Please see Figure 7 As shown, Embodiment 2 of this application provides a display device 1, which includes a driver chip 20 and a display panel 10 described in any of the embodiments described above. The display panel 10 is electrically connected to the driver chip 20 to control the voltage signal of the common electrode 200 and the voltage signal of the dimming electrode 143 in the display panel 10, thereby controlling the deflection of liquid crystal molecules and the privacy mode and sharing mode.

[0092] According to the embodiments of this application, the specific type of the display device 1 is not particularly limited. Any type of display device 1 commonly used in the art can be used, such as liquid crystal displays, mobile devices such as mobile phones and laptops, wearable devices such as watches, VR devices, etc. Those skilled in the art can make the appropriate selection according to the specific purpose of the display device, which will not be elaborated here.

[0093] In the description of this specification, references to terms such as "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0094] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and description of this application should fall within the scope of this patent application.

Claims

1. A display panel, the display panel comprising a first substrate, the first substrate comprising a substrate substrate and a color resist layer disposed on the substrate substrate, the color resist layer comprising a plurality of color resist blocks of different colors; characterized in that, The color resist block is provided with a reflective channel, allowing external light to enter the back side of the color resist block from its front side. The reflective channel extends from the front side of the color resist block to its back side, and the extending direction of the reflective channel forms an angle with the substrate. The first substrate further includes: A dimming unit is disposed on the back side of the color resist block. The dimming unit includes a dimming section, the extension direction of which is perpendicular to the extension direction of the reflection channel. The dimming section has a privacy mode and a light-transmitting mode, and can switch between the privacy mode and the light-transmitting mode. In the privacy mode, the dimming section can reflect external light rays that enter parallel to the extension direction of the reflection channel back into the reflection channel and emit them out parallel to the extension direction of the reflection channel. In the light-transmitting state, the dimming unit allows external light to pass through.

2. The display panel according to claim 1, characterized in that, The dimming unit also includes a dimming electrode, which is located on the side of the dimming section away from the color resist layer. The dimming section can be in the privacy-proof state under the action of the dimming electrode.

3. The display panel according to claim 2, characterized in that, The dimming electrode has a first state and a second state, one of which is an energized state and the other is an de-energized state. The dimming unit is in the privacy-proof state when the dimming electrode is in the first state; the dimming unit is in the light-transmitting state when the dimming electrode is in the second state.

4. The display panel according to claim 2, characterized in that, The color block is provided with multiple reflection channels, and at least two of the reflection channels extend in different directions.

5. The display panel according to claim 4, characterized in that, The color block is provided with a first reflection channel and a second reflection channel, and the extension direction of the first reflection channel and the second reflection channel are symmetrically arranged. The dimming unit includes a first part and a second part, the first part and the second part corresponding to the first reflection channel and the second reflection channel, respectively.

6. The display panel according to claim 4, characterized in that, The extension direction of the reflection channel forms an angle α with the substrate, and the value of the angle α is in the range of 30°≤α≤90°.

7. The display panel according to claim 4, characterized in that, The display panel further includes a second substrate and a liquid crystal layer, wherein the first substrate and the second substrate are disposed opposite each other, and the liquid crystal layer is disposed between the first substrate and the second substrate; The first substrate further includes a light-shielding layer, which includes an array of light-shielding areas and light-transmitting areas. The orthographic projection of the color resist block covers the light-transmitting area, and the light-shielding area is provided with the reflection channel.

8. The display panel according to claim 7, characterized in that, The color resist layer includes color resist blocks arranged in an array, and the reflection channels of the color resist blocks in the same column are interconnected. The reflection channels in the same column of the light-shielding area are interconnected.

9. The display panel according to claim 2, characterized in that, The dimming unit includes an electrochromic material; and / or The display panel also includes a common electrode, which is located on the side of the dimming electrode away from the color resist layer, and the common electrode is insulated from the dimming electrode.

10. A display device, characterized in that, The display device includes: Driver chip; The display panel according to any one of claims 1 to 9, wherein the display panel is electrically connected to the driving chip.

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