Display panel and display device

Abstract

The present application discloses a display panel and a display device. The display panel includes a stacked dimming box and a display box. The display box includes an array substrate and a color filter substrate which are oppositely arranged. The dimming box includes a first substrate, a second substrate and an identification template which are oppositely arranged. The identification template includes a metal trace layer, a first passivation layer, an identification film layer and a second passivation layer which are sequentially stacked on the first substrate. The identification film layer includes an identification area which is divided into a plurality of identification blocks. A first group of identification blocks among the plurality of identification blocks receive a first voltage through the metal trace layer, and a second group of identification blocks among the plurality of identification blocks receive a second voltage through the metal trace layer, so that a pattern corresponding to the first group of identification blocks is displayed on the display panel. The display panel and the display device of the present application divide the identification area of the identification film layer into a plurality of identification blocks and drive them by two voltages respectively, so that different displays can use the same identification template to display a variety of different patterns, avoiding frequent replacement of the identification template.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal displays, and particularly to a display panel and a display device. Background Art

[0002] Due to advantages such as low power consumption, small size, light weight, and ultra-thin screen, liquid crystal displays have been widely used in various fields. In order to enhance the brand effect of each display manufacturer, a manufacturer-exclusive LOGO (trademark) is usually displayed on the screen of the display in the anti-peeking mode. This application can play a role in identifying and promoting the company owning the trademark and can also be used as an anti-counterfeiting mark.

[0003] Currently, in displays with trademark prompts, a trademark pattern usually needs to be made through a specific template, and then the template is placed in the display. After the display works, the trademark pattern is displayed on the display screen in the anti-peeking mode, and the LOGO pattern on the screen can be seen when viewed from the side. However, the pattern of this trademark template is determined during design, and a display can only display one trademark pattern. If other patterns want to be displayed on the display screen, the entire set of templates needs to be changed. Therefore, there are problems of high costs for template design and replacement and inability to switch display patterns. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to provide a display panel and a display device to solve the problems in the prior art.

[0005] According to a first aspect of the present invention, a display panel is provided, including a dimming box and a display box arranged in a stacked manner. The display box includes an array substrate and a color filter substrate arranged oppositely, and the dimming box includes a first substrate and a second substrate arranged oppositely.

[0006] The dimming box further includes an identification template, and the identification template includes a metal trace layer, a first passivation layer, an identification film layer, and a second passivation layer stacked in sequence on the first substrate. The identification film layer includes an identification area, and the identification area is divided into a plurality of identification blocks.

[0007] A first group of identification blocks among the plurality of identification blocks receive a first voltage through the metal trace layer, and a second group of identification blocks among the plurality of identification blocks receive a second voltage through the metal trace layer, so that a pattern corresponding to the first group of identification blocks among the plurality of identification blocks is displayed on the display panel.

[0008] Optionally, the identification area includes a plurality of graphic areas, and the plurality of graphic areas are divided into a plurality of identification blocks. Different identification blocks among the plurality of identification blocks are divided into the first group of identification blocks according to different patterns to be displayed.

[0009] Optionally, the identification film layer further includes a non-identification area, and the non-identification area receives the second voltage through the metal trace layer.

[0010] Optionally, the spacing between adjacent graphic areas is equal.

[0011] Optionally, the identification film layer is equally divided into a plurality of identification blocks according to the resolution, and different identification blocks among the plurality of identification blocks are divided into the first group of identification blocks according to different patterns to be displayed.

[0012] Optionally, when the display panel is in the narrow viewing angle mode, the pattern corresponding to the first group of identification blocks is displayed.

[0013] Optionally, the spacing between adjacent identification blocks is at least 5 μm.

[0014] Optionally, the projection of the identification area on the display panel is located in the central display area.

[0015] Optionally, the first group of identification blocks is connected to one or more pins of the flexible circuit board through the metal trace layer, and the flexible circuit board supplies the first voltage and the second voltage to the first group of identification blocks and the second group of identification blocks respectively through different pins.

[0016] According to a second aspect of the present invention, there is provided a display device, including:

[0017] The above-mentioned display panel; and

[0018] A backlight module for supplying power to the display panel, and the display panel displays the pattern corresponding to the first group of identification blocks in the narrow viewing angle mode after being powered on.

[0019] For the display panel and the display device provided by the present invention, by dividing the identification area of the identification film layer of the identification template inside the display panel into a plurality of identification blocks, the first group of identification blocks receives the first voltage through the metal trace layer, while the second group of identification blocks receives the second voltage through the metal trace layer, so as to realize only the pattern corresponding to the first group of identification blocks being displayed on the display panel. Since the first group of identification blocks can be selected and combined according to actual needs, a plurality of identification blocks on one identification template can be combined to obtain a variety of patterns, and finally a variety of different patterns are displayed by applying different voltages to different areas, so that one identification template can be applied to multiple display panels, reducing the design and development costs of the identification template and reducing the production process.

[0020] Furthermore, the fused patterns corresponding to multiple patterns are designed on the identification film layer as the identification area. By dividing into multiple identification blocks, different identification blocks can be combined into multiple first-group identification blocks to display different patterns. Therefore, one identification template can be used to display multiple different patterns, expanding the adaptability of the display panel and enhancing the display richness of the display panel.

[0021] Furthermore, the identification film layer is equally divided into multiple identification blocks according to the resolution. The identification blocks at corresponding positions are connected together through the metal wiring layer according to the required pattern, receiving the first voltage, while the remaining parts all receive the second voltage. Then the required pattern can be displayed on the display panel, and there is no need to form a pattern on the identification film layer, simplifying the patterning process of the identification film layer, reducing the manufacturing cost, and having a high adaptability to display panels of the same size. Brief Description of the Drawings

[0022] Through the following description of the embodiments of the present invention with reference to the drawings, the above and other objects, features, and advantages of the present invention will become clearer.

[0023] Figure 1 Shows a schematic diagram of a display panel according to the first embodiment of the present invention.

[0024] Figure 2 Shows according to Figure 1 The schematic diagram of the display screen of the display panel in the narrow viewing angle mode.

[0025] Figure 3 Shows according to Figure 1 The distribution schematic diagram of the graphic area on the identification film layer of the display panel.

[0026] Figure 4 Shows according to Figure 1 The schematic diagram of the connection method of each identification block on the identification film layer of the display panel.

[0027] Figure 5a And Figure 5b Shows according to Figure 4 Two different patterns displayed by the identification film layer.

[0028] Figure 6 Shows a schematic diagram of the structure of an identification template according to the second embodiment of the present invention.

[0029] Figure 7 Shows according to Figure 6 The division schematic diagram of the identification blocks on the identification film layer of the identification template.

[0030] Figure 8 Shows according to Figure 6 The connection method schematic diagram of the identification blocks on the identification film layer of the identification template. Detailed Implementation Modes

[0031] The present invention will be described based on the embodiments below, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail. Those skilled in the art can fully understand the present invention without the description of these details. In order to avoid obscuring the essence of the present invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0032] It should be understood that, unless the context clearly requires otherwise, the words such as "including" and "comprising" throughout the specification and claims should be construed in an inclusive sense rather than an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to". The terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0033] Embodiment 1

[0034] Figure 1 A schematic diagram of a display panel according to the first embodiment of the present invention is shown. As Figure 1 shown, the display panel 10 of this embodiment includes a dimming box 100 and a display box 200 that are stacked on each other. The dimming box 100 is disposed above the display box 200, that is, the dimming box 100 is located on the light-emitting side of the display box 200. The dimming box 100 is used to control the viewing angle of the display panel 10, and the display box 200 is used to control the display panel 10 to display a normal picture. Of course, the dimming box 100 can also be disposed below the display box 200, that is, located on the light-incident side of the display box 200. The display box 200 is preferably a liquid crystal box, and of course, it can also be a self-luminous display (such as an OLED display, a Micro LED display).

[0035] In Figure 1Among them, the display box 200 includes an array substrate 210 and a color filter substrate 220 which are oppositely arranged, and a first liquid crystal layer 230 located between the array substrate 210 and the color filter substrate 220. The first liquid crystal layer 230 adopts positive liquid crystal molecules, for example. In the initial state, the first liquid crystal layer 230 is aligned parallel to the color filter substrate 220 and the array substrate 210. Of course, the first liquid crystal layer 230 can also adopt negative liquid crystal molecules. The color filter substrate 220 is provided with a color resist layer 202 arranged in an array and a black matrix 201 that separates the color resist layer 202. The color resist layer 202 includes color resist materials of three colors: red (R), green (G), and blue (B), corresponding to forming sub-pixels of red, green, and blue colors. A protective layer 290 is also covered on the color resist layer 201. The array substrate 210 is defined by a plurality of scan lines (not shown in the figure) and a plurality of data lines (not shown in the figure) insulated and crossed with each other on the side facing the first liquid crystal layer 230 to form a plurality of pixel units (not shown in the figure). Each pixel unit is provided with a pixel electrode 270 and a thin film transistor (not shown in the figure). The pixel electrode 270 is electrically connected to the data line through the thin film transistor. The array substrate 210 is also provided with a common electrode 260 on the side facing the first liquid crystal layer 230. The common electrode 260 and the pixel electrode 270 are located on different layers and are insulated and isolated by an insulating layer 280. Preferably, the common electrode 260 is a planar electrode provided as a whole surface, and the pixel electrode 270 is a block electrode or a slit electrode provided as a whole within each pixel unit.

[0036] The dimming box 100 includes a first substrate 110 and a second substrate 120 which are oppositely arranged, a second liquid crystal layer 130 located between the first substrate 110 and the second substrate 120, and an identification template 140 located on the first substrate 110. The second substrate 120 is provided with a viewing angle common electrode 160 on the side facing the second liquid crystal layer 130. By controlling the pressure difference between the viewing angle common electrode 160 and the identification template 140, the deflection of the liquid crystal molecules in the second liquid crystal layer 130 is controlled, so as to realize the control of the switching between narrow and wide viewing angles. A first polarizer 240 is provided on the side of the display box 200 away from the dimming box 100. A second polarizer 250 is provided between the dimming box 100 and the display box 200. A third polarizer 150 is provided on the side of the dimming box 100 away from the display box 200. The transmission axis of the first polarizer 240 is parallel to the transmission axis of the second polarizer 250, and the transmission axis of the third polarizer 150 is perpendicular to the transmission axis of the second polarizer 250.

[0037] Further, the identification template 140 includes a metal trace layer 141, a first passivation layer 142, an identification film layer 143, and a second passivation layer 144 that are sequentially stacked on the first substrate 110. The metal trace layer 141 is connected to the flexible circuit board and receives signals sent by the host. The first passivation layer 142 partially isolates the identification film layer 143 and the metal trace layer 141. The identification film layer 143 includes an identification area 1431 and a non-identification area 1432, and there is a gap 145 between the identification area 1431 and the non-identification area 1432. The identification area 1431 can display a picture on the display panel 10 after applying a voltage, such as a merchant logo (LOGO). Then, the identification area 1431 is connected to the metal trace layer 141 by punching holes in the first passivation layer 142. The first passivation layer 142 separates the non-identification area 1432 from the metal trace layer 141, but the non-identification area 1432 also needs to be connected to the metal trace layer 141 through at least one via to receive the voltage sent by the host. The second passivation layer 144 serves as a protective layer for the identification film layer 143, transmits the signals of the identification area 1431 upward, and isolates the signals in other places, so as to prevent the signals of the identification film layer 143 from intersecting with the signals of the viewing angle common electrode 160. In this embodiment, the first substrate 110, the second substrate 120, the color film substrate 220, and the array substrate 210 can be made of materials such as glass, acrylic, and polycarbonate. The materials of the viewing angle common electrode 160, the common electrode 260, the pixel electrode 270, and the identification film layer 143 can be indium tin oxide (ITO) or indium zinc oxide (IZO), etc.

[0038] In this embodiment, the identification film layer 143 includes an identification area 1431, and the identification area 143 is divided into multiple identification blocks. Different positions of the identification blocks are grouped into a first group of identification blocks according to different patterns to be displayed. The first group of identification blocks receives a first voltage V1 through the metal trace layer 141, and the second group of identification blocks receives a second voltage V2 through the metal trace layer 141, so that the pattern corresponding to the first group of identification blocks is displayed on the display panel 10. Further, the second liquid crystal layer 130 uses positive liquid crystal molecules, so that the dimming box 100 presents a wide viewing angle display in the initial state. When narrow viewing angle display needs to be realized, a voltage is applied to the identification film layer 143, and a viewing angle control voltage is also applied to the viewing angle common electrode 160 to form a large pressure difference and a strong electric field, so as to drive the positive liquid crystal molecules in the second liquid crystal layer 130 to deflect in the vertical direction, so that the dimming box 100 presents a narrow viewing angle display. Therefore, in this embodiment, the display panel 10 needs to display the LOGO pattern in the narrow viewing angle mode.

[0039] Figure 2 Shows a schematic diagram of the display screen of the display panel according to Figure 1 in the narrow viewing angle mode, as Figure 2As shown, when the display panel 10 operates in a narrow viewing angle mode or under an anti-peeping film, a graphic area 20 can be seen on the display panel 10 in a side view. The graphics in the graphic area 20 can be set according to the actual LOGO pattern to be displayed (in this embodiment, the letter "IVO" is used as the LOGO pattern to be displayed). That is, the projection of the identification area 1431 on the display panel 10 is located in the central display area.

[0040] Figure 3 Shows a schematic diagram of the distribution of the graphic area on the identification film layer in the display panel according to Figure 1 As shown in Figure 3 A graphic is formed on the identification film layer 143. The identification film layer 143 includes an identification area 1431 and a non-identification area 1432. The area where the graphic is located is the identification area 1431, and the part outside the identification area 1431 is the non-identification area. Moreover, a certain gap 145 is left outside the graphic of the identification area 1431, that is, there is a gap 145 between the identification area 1431 and the non-identification area 1432. When the gap 145 is too large, the edge effect of the display will be poor, and when it is too small, signal crosstalk between the identification area and the non-identification area may occur. Therefore, in this embodiment, the gap 145 is preferably 5 μm.

[0041] In order to display the LOGO pattern on the display panel 10, the identification area 1431 and the non-identification area 1432 of Figure 3 can receive different voltages respectively (for example, in the narrow viewing angle mode, the identification area 1431 receives a first voltage V1 of 2.1 V, and the non-identification area 1432 receives a second voltage of 2.6 V), and the LOGO display is achieved under the action of the two voltages. However, in this method, the pattern on the identification film layer 143 is fixed. If the LOGO needs to be changed, the entire identification template 143 needs to be remade, with complex processes, time-consuming and high costs. Therefore, the identification film layer 143 of the first embodiment of the present invention includes an identification area 1431 and a non-identification area 1432, and the identification area 1431 is further divided into multiple identification blocks. Multiple different identification blocks are selected to form a first group of identification blocks, and the remaining identification blocks are used as a second group of identification blocks. Different voltages are applied to the first group of identification blocks and the second group of identification blocks respectively, so that the pattern composed of the first group of identification blocks can be displayed on the display panel 10. Then, by selecting different combinations of identification blocks, multiple first groups of identification blocks can be obtained, that is, multiple different pattern results can be displayed. Therefore, the same identification film layer 143 can display multiple different patterns on the display panel 10 at different times. In this embodiment, only one identification template 140 needs to be designed to achieve the change of the LOGO, which simplifies the design process and reduces the cost.

[0042] Figure 4 Shows a schematic diagram of the distribution of the graphic area on the identification film layer in the display panel according to Figure 1Schematic diagram of the connection method of each identification block on the identification film layer in the display panel, as Figure 4 shown, through Figure 4 Specifically illustrate the identification film layer of the first embodiment of the present invention. The identification film layer 143 includes an identification area 1431 and a non-identification area 1432. The identification area 1432 includes a plurality of graphic areas 20 Figure 4 In, there are 4 graphic areas 20 in the identification area. The entire identification area 1431 is divided into 12 identification blocks numbered 1-12. Each graphic area 20 includes two or three identification blocks. Further, the spacing between adjacent graphic areas 20 is equal (spacing is D), and the spacing between adjacent identification blocks is at least 5 μm (for simplicity of the schematic diagram, it is not shown in the figure). Figure 4 The first type of identification block 21 and the second type of identification block 22 in can be respectively used to form different patterns, which are displayed on the display panel 10 after applying voltage.

[0043] Specifically, among all the identification blocks (numbered 1-12) in the graphic area 20, a part is selected as the first group of identification blocks, and the rest is used as the second group of identification blocks. The first group of identification blocks and the second group of identification blocks receive different voltages through the metal wiring layer, so that the pattern corresponding to the first group of identification blocks is displayed on the display panel 10. Further, a plurality of identification blocks are connected to a plurality of pins (pin1-pin6) of the flexible circuit board 40 through the metal wiring 30. The flexible circuit board 40 provides the first voltage V1 and the second voltage V2 to the first group of identification blocks and the second group of identification blocks respectively through different pins, so that the pattern corresponding to the first group of identification blocks is displayed.

[0044]

[0045] Table 1

[0046] By different wiring designs, it can be realized that the first group of identification blocks are connected to one or more pins. Figure 4 A wiring design scheme is given in: The 5th identification block is connected to Pin1, the 8th identification block is connected to Pin2, the 9th identification block is connected to Pin3, the 4 identification blocks numbered 1 / 4 / 7 / 11 are connected through the metal wiring 30 and then connected to Pin4, the 5 identification blocks numbered 2 / 3 / 6 / 10 / 12 are connected through the metal wiring 30 and then connected to Pin5, and a part of the non-identification area 1432 is connected to Pin6. Then, correspondingly, when different LOGO graphics need to be displayed in the narrow viewing angle mode, the voltages are set in the following table respectively to achieve different pattern display effects.

[0047] That is, the first group of identification blocks receives a first voltage, while the non-identification area 1432 of the identification film layer 143 and the second group of identification blocks both receive a second voltage through the metal wiring layer, and the first voltage is less than the second voltage. By making the voltage of the second group of identification blocks the same as that of the non-identification area, the display difference between the two is reduced, while the voltage of the first group of identification blocks is different from that of the second group of identification blocks to highlight the pattern of the first group of identification areas. Thus, by changing the positions of the identification blocks included in the first group of identification blocks, the finally displayed pattern can be changed. Of course, in other embodiments, the first voltage and the second voltage can also be selected as other voltage values, and the first voltage can also be greater than the second voltage. In this embodiment, the first voltage is 2.1V and the second voltage is 2.6V, which is just a relatively preferred example.

[0048] Figure 5a and Figure 5b respectively show two different patterns displayed by the identification film layer according to Figure 4 as Figure 5a shown, corresponding to Figure 4 in the narrow viewing angle 1 mode. By taking the 8th identification block as the second group of identification blocks, and the 1st - 7th and 9th - 12th identification blocks as the first group of identification blocks, the non-identification area and the second group of identification blocks receive the second voltage (±2.6V), while the first group of identification blocks receive the first voltage (±2.1V). Here, the fact that the first voltage is less than the second voltage means that the absolute value of the first voltage is less than the absolute value of the second voltage. Through such a setting method, a logo such as "DELL" is presented on the finally displayed panel 10, that is, Figure 5a the pattern shown by the shaded part in

[0049] Actually, the magnitudes of the first voltage and the second voltage can be set according to actual requirements. Figure 5b as Figure 4 shown, corresponding to Figure 5b in the narrow viewing angle 2 mode. By taking the 2nd, 3rd, 5th, 6th, 9th, 10th, and 12th identification blocks as the second group of identification blocks, and the 1st, 4th, 7th, 8th, and 11th identification blocks as the first group of identification blocks, the non-identification area and the second group of identification blocks receive the second voltage (±2.6V), while the first group of identification blocks receive the first voltage (±2.1V), and the absolute value of the first voltage is less than the absolute value of the second voltage. Through such a setting method, a logo such as "HP" is presented on the finally displayed panel 10, that is,

[0050] Therefore, through the design solution of the above embodiments, using a set of identification templates 140 can achieve the display of the HP / DELL logos on the display panel 10. The connection method between the identification film layer 143 and the metal trace layer 141 is fixed. By applying different voltages to different pins of the flexible circuit board 40, the switching between the two patterns can be realized. Therefore, using this identification template 140 to produce the display panel 10 can save half of the template design process, that is, the four-layer structure of the identification template 140 can be applied to the display screens that need to display these two logos without any change, simplifying the process flow, reducing costs, reducing production capacity losses, and improving production efficiency.

[0051] Figure 4 - Figure 5b Only an example of displaying two logo patterns with one template is given. In fact, the mixed logo graphics are not limited to the above example. By making the required mixed logo graphics on the identification film layer 143 of the identification template 140 in the display cell 100, and then dividing these graphics into multiple identification blocks, selecting the required identification blocks and connecting them through the metal trace layer to form the first group of identification blocks, applying the same voltage, and applying another voltage to the remaining identification blocks and non-identification areas, the switching between different patterns can be realized, saving the template design process. Of course, since the positions of the first group of identification blocks corresponding to different patterns are different, it is necessary to replace the metal trace layer and the first passivation layer each time, but it saves a large part of the process compared with replacing the entire identification template in the prior art.

[0052] In summary, in the identification template and display device of the first embodiment of the present invention, the fusion patterns corresponding to multiple patterns are designed on the identification film layer as the identification area. By dividing into multiple identification blocks, different identification blocks can be combined into different patterns. Therefore, one identification template can be used to display multiple different patterns, expanding the adaptability of the display panel and enhancing the display richness of the display panel.

[0053] Embodiment 2

[0054] Figure 6 Shows a schematic structural diagram of an identification template according to the second embodiment of the present invention. As Figure 6 shown, the identification template 340 includes a metal trace layer 341, a first passivation layer 342, an identification film layer 343, and a second passivation layer 344 stacked in sequence. The functions of each layer are the same as those in the first embodiment. The identification film layer 343 includes an identification area, which is divided into multiple identification blocks. The first group of identification blocks receives a first voltage V1 through the metal trace layer 341, and the second group of identification blocks receives a second voltage V3 through the metal trace layer 341, so as to display the pattern corresponding to the first group of identification blocks on the display panel 10.

[0055] Specifically, in this embodiment, the identification film layer 343 is equally divided into a plurality of identification blocks according to the resolution of the display panel. Then, the entire identification film layer 343 can be regarded as the identification area, or the central area can be regarded as the identification area. According to the different patterns to be displayed, the identification blocks at different positions are selected to form the first group of identification blocks. Except for the selected first group of identification blocks, the remaining identification blocks are used as the second group of identification blocks. The first group of identification blocks is connected to one or more pins of the flexible circuit board 40 through the metal wiring layer 141. The flexible circuit board 40 provides the first voltage and the second voltage to the first group of identification blocks and the second group of identification blocks respectively through different pins, and the first voltage is not equal to the second voltage. It can be seen that each identification block is connected to the metal wiring layer 341 by forming a via hole on the first passivation layer 342.

[0056] That is, in this embodiment, the identification film layer 343 of the identification template 340 of the display cell 100 is equally divided into a plurality of identification blocks according to the resolution of the display panel. Subsequently, according to the LOGO to be displayed, the identification blocks at the corresponding positions are selected to form the first group of identification blocks and the first voltage is applied, while the remaining parts are all applied with the second voltage to achieve the required LOGO effect through different driving voltages. An identification film layer 243 can be applied to different display panels with the same resolution. Therefore, only this one type of identification film layer 343 needs to be designed for the display panels with the same resolution, saving the template design process and cost. And the identification template of this embodiment does not need to etch a pattern on the identification film layer, which further simplifies the manufacturing process of the identification template. For the display panels with the same resolution that need to display different LOGOs, only the metal wiring layer and the first passivation layer need to be changed, greatly reducing the design workload.

[0057] Figure 7 Shows according to Figure 6 The schematic diagram of the division of the identification blocks on the identification film layer in the identification template of, as Figure 7 Shown, taking the display panel 10 as an FHD (Full High Definition) panel as an example, its resolution is 1920*1080. Then, when designing the identification film layer 343, the identification film layer 343 is equally divided according to 1920*1080. After dividing the identification blocks, the distance between two adjacent identification blocks is 5μm.

[0058] Figure 8 Shows according to Figure 6 The schematic diagram of the connection mode of the identification blocks on the identification film layer in the identification template of, as Figure 8 Shown, for example, if you want to present the HP LOGO pattern, select Figure 8The identification blocks in the shaded part are connected together through metal traces and then connected to the first pin (pin1) of the flexible circuit board 40. The identification blocks at the remaining positions are combined and connected to pin2. By applying a first voltage of ±2.1V to pin1 and a second voltage of ±2.6V to pin2, the "HP" logo pattern is displayed on the display panel 10.

[0059] In summary, in this embodiment, the identification film layer is equally divided into multiple identification blocks according to the resolution. The identification blocks at the corresponding positions are connected together through the metal trace layer, receive the first voltage, and the remaining parts all receive the second voltage, so that the required pattern can be displayed on the display panel. Moreover, there is no need to form a pattern on the identification film layer, which simplifies the patterning process of the identification film layer, reduces the manufacturing cost, and has a high adaptability to display panels of the same size.

[0060] Correspondingly, the present invention further provides a display device, including: a display panel according to any of the above embodiments; and a backlight module for supplying power to the display panel, and the display panel displays the pattern corresponding to the first group of identification blocks at a narrow viewing angle.

[0061] The display panel and the display device provided by the present invention divide the identification area of the identification film layer of the identification template inside the display panel into multiple identification blocks. The first group of identification blocks receives the first voltage through the metal trace layer, while the second group of identification blocks receives the second voltage through the metal trace layer, so as to realize only the pattern corresponding to the first group of identification blocks being displayed on the display panel. Since the first group of identification blocks can be selected and combined according to actual needs, multiple identification blocks on one identification template can be combined to obtain a variety of patterns. Finally, different voltages are applied according to the partitions to display a variety of different patterns, so that one identification template can be applied to multiple display panels, reducing the design and development cost of the identification template and reducing the production process.

[0062] Finally, it should be noted that: As described above in accordance with the embodiments of the present invention, these embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, according to the above description, many modifications and changes can be made. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the art in the relevant technical field can make good use of the present invention and its modifications based on the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A display panel includes a dimming box and a display box which are stacked. The display box includes an array substrate and a color filter substrate which are oppositely arranged. The dimming box includes a first substrate and a second substrate which are oppositely arranged. It is characterized in that the dimming box further includes an identification template. The identification template includes a metal trace layer, a first passivation layer, an identification film layer, and a second passivation layer which are sequentially stacked on the first substrate. The identification film layer includes an identification area. The identification area includes a plurality of graphic areas. The plurality of graphic areas are divided into a plurality of identification blocks. According to different patterns to be displayed, different identification blocks among the plurality of identification blocks are divided into a first group of identification blocks. The first group of identification blocks among the plurality of identification blocks receive a first voltage through the metal trace layer. The second group of identification blocks among the plurality of identification blocks receive a second voltage through the metal trace layer, so that a pattern corresponding to the first group of identification blocks among the plurality of identification blocks is displayed on the display panel.

2. The display panel according to claim 1, wherein The identification film layer further includes a non-identification area. The non-identification area receives the second voltage through the metal trace layer.

3. The display panel according to claim 1, wherein The distance between adjacent graphic areas is equal.

4. The display panel according to claim 1, wherein The identification film layer is equally divided into a plurality of identification blocks according to the resolution. According to different patterns to be displayed, different identification blocks among the plurality of identification blocks are divided into the first group of identification blocks.

5. The display panel according to claim 1, wherein, When the display panel is in a narrow viewing angle mode, the pattern corresponding to the first group of identification blocks is displayed.

6. The display panel according to claim 1, wherein, The distance between adjacent identification blocks is at least 5 μm.

7. The display panel according to claim 1, wherein The projection of the identification area on the display panel is located in the central display area.

8. The display panel according to claim 1, wherein The first group of identification blocks are connected to one or more pins of a flexible circuit board through the metal trace layer. The flexible circuit board provides the first voltage and the second voltage to the first group of identification blocks and the second group of identification blocks respectively through different pins.

9. A display device, characterized in that, Comprising: the display panel according to any one of claims 1-8; and a backlight module which is used to supply power to the display panel. The display panel displays the pattern corresponding to the first group of identification blocks in a narrow viewing angle mode after being powered on.

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