Display device

Abstract

The present application discloses a display device, which includes a display panel. The display panel includes a first display area, a second display area, and an opening area. The first display area and the second display area are adjacent. The second display area and the first display area are adjacent. In the black state, the brightness of the first display area, the second display area, and the opening area decreases in sequence. The first display area has a first brightness value I1. The second display area and the opening area have a first brightness difference value ΔI1, and the ratio of the first brightness difference value ΔI1 to the first brightness value I1 is K1, and the value range of K1 is from 0.001 to 0.1. The first display area and the second display area have a second brightness difference value ΔI2, and the ratio of the second brightness difference value ΔI2 to the first brightness value I1 is K2, and the value range of K2 is from 0.001 to 0.1. The inventors of the present application have found that in the black state, when the values of K1 and K2 are set between 0.001 and 0.1, the human eye cannot perceive the brightness difference among the first display area, the second display area, and the opening area, thereby improving the integrated black effect of the display device in the black state.

Description

Technical Field

[0001] This application relates to the field of display technologies, and particularly to a display device. Background Art

[0002] In in-vehicle electronic systems, the DMS (Driver Monitor System), i.e., the driver status monitoring system, plays roles such as driver identity recognition, driver fatigue monitoring, and dangerous driving behavior monitoring. An important component of the DMS system is the camera assembly, which monitors the driver status through the camera assembly.

[0003] The camera under panel (CUP) technology hides the camera assembly under the display panel without affecting the display effect of the display panel. Since the camera assembly is hidden under the display panel, there is no backlight under the CUP area. Due to the lack of backlight under the CUP area, the brightness of the peripheral area is greater than that of the CUP area when the dashboard is displayed in the black state, resulting in a poor integrated black effect when the display device is displayed in the black state. Summary of the Invention

[0004] Embodiments of this application provide a display device for improving the problem of poor integrated black effect when the display device is displayed in the black state.

[0005] Embodiments of this application provide a display device, including:

[0006] A display panel, where the display panel includes a first display area, a second display area, and an opening area, the first display area and the second display area are adjacent, and the second display area and the opening area are adjacent; where

[0007] In the black state, the brightness of the first display area, the second display area, and the opening area decreases in sequence. The first display area has a first brightness value I1, the second display area and the opening area have a first brightness difference value ΔI1, the ratio of the first brightness difference value ΔI1 to the first brightness value I1 is K1, the value range of K1 is from 0.001 to 0.1, the first display area and the second display area have a second brightness difference value ΔI2, and the ratio of the second brightness difference value ΔI2 to the first brightness value I1 is K2, and the value range of K2 is from 0.001 to 0.1.

[0008] Optionally, in some embodiments provided by this application, the second brightness difference value ΔI2 is less than or equal to the first brightness difference value ΔI1.

[0009] Optionally, in some embodiments provided by the present application, the second display area includes at least two sub-areas, the two sub-areas include a first sub-area and a second sub-area, the second sub-area surrounds the opening area, and the first sub-area is disposed on a side of the second sub-area away from the opening area; there is a third brightness difference value ΔI3 between the first sub-area and the second sub-area, and the ratio of the third brightness difference value ΔI3 to the first brightness value I1 is K3, and the value range of K3 is from 0.001 to 0.1.

[0010] Optionally, in some embodiments provided by the present application, the third brightness difference value ΔI3 is less than or equal to the first brightness difference value ΔI1.

[0011] Optionally, in some embodiments provided by the present application, the brightness difference between the opening area and the second sub-area is the first brightness difference value ΔI1, the brightness difference between the first sub-area and the first display area is the second brightness difference value ΔI2, and the first brightness difference value ΔI1, the second brightness difference value ΔI2 and the third brightness difference value ΔI3 are equal.

[0012] Optionally, in some embodiments provided by the present application, the aperture ratio of the first display area is greater than the aperture ratio of the first sub-area, and the aperture ratio of the first sub-area is greater than the aperture ratio of the second sub-area.

[0013] Optionally, in some embodiments provided by the present application, the display panel includes a color filter layer, the color filter layer corresponds to the first display area, the first sub-area and the second sub-area, the color filter layer includes a black matrix and a plurality of color resistors disposed in the black matrix, and the black matrix includes a plurality of black matrix blocks arranged at intervals; wherein

[0014] In the direction from the first display area to the opening area, the width of the black matrix block corresponding to the first display area is less than the width of the black matrix block corresponding to the first sub-area, and the width of the black matrix block corresponding to the first sub-area is less than the width of the black matrix block corresponding to the second sub-area.

[0015] Optionally, in some embodiments provided by the present application, in the direction from the first display area to the opening area, the ratio of the width of the black matrix block corresponding to the first display area, the width of the black matrix block corresponding to the first sub-area, and the width of the black matrix block corresponding to the second sub-area is: 1:(1 to 2.5):(2.5 to 5).

[0016] Optionally, in some embodiments provided by the present application, the area of the color resistor corresponding to the first display area is larger than the area of the color resistor corresponding to the first sub-area, and the area of the color resistor corresponding to the first sub-area is larger than the area of the color resistor corresponding to the second sub-area. Among them, the ratio of the area of the color resistor corresponding to the first display area, the area of the color resistor corresponding to the first sub-area, and the area of the color resistor corresponding to the second sub-area is: 1:(0.5 - 1):(0 - 0.5).

[0017] Optionally, in some embodiments provided by the present application, the multiple color resistors include a blue color resistor, a red color resistor, and a green color resistor. Among them, in the first display area, the first sub-area, and the second sub-area, the ratio of the area of the green color resistor, the area of the red color resistor, and the area of the blue color resistor corresponding to different regions is: (1:1:1):(0.9 - 0.8:1:1):(0.8 - 0.7:0.9 - 0.8:1).

[0018] Optionally, in some embodiments provided by the present application, the two sub-areas include a first sub-area and a second sub-area. The second sub-area surrounds the opening area, and the first sub-area is disposed on a side of the second sub-area away from the opening area; the display device further includes a backlight module. The backlight module corresponds to the first display area and the second display area. The backlight module includes a light guide plate and a backlight source disposed on at least one side of the light guide plate. The light guide plate has a plurality of dot structures disposed on the backlight side away from the display panel; among them

[0019] The density of the dot structures corresponding to the first display area is greater than the density of the dot structures corresponding to the first sub-area, and the density of the dot structures corresponding to the first sub-area is greater than the density of the dot structures corresponding to the second sub-area.

[0020] Optionally, in some embodiments provided by the present application, the ratio of the density of the dot structures corresponding to the first display area, the density of the dot structures corresponding to the first sub-area, and the density of the dot structures corresponding to the second sub-area is: 1:(0.5 - 1):(0 - 0.5).

[0021] Optionally, in some embodiments provided by the present application, the first luminance value I1 is between 0.4 nits and 1 nit, and the value range of the first luminance difference value ΔI1 is from 0.001 nit to 0.1 nit.

[0022] Optionally, in some embodiments provided by the present application, the display device further includes a sensor. The sensor is disposed on the backlight side of the display panel and corresponds to the opening area.

[0023] An embodiment of the present application provides a display device, which includes a display panel. The display panel includes a first display area, a second display area, and an opening area. The first display area and the second display area are adjacent. The second display area and the first display area are adjacent. In the black state, the brightnesses of the first display area, the second display area, and the opening area decrease in sequence. The first display area has a first brightness value I1. The second display area and the opening area have a first brightness difference value ΔI1. The ratio of the first brightness difference value ΔI1 to the first brightness value I1 is K1, and the value range of K1 is from 0.001 to 0.1. The first display area and the second display area have a second brightness difference value ΔI2. The ratio of the second brightness difference value ΔI2 to the first brightness value I1 is K2, and the value range of K2 is from 0.001 to 0.1. In the black state, the brightnesses of the first display area, the second display area, and the opening area of the embodiment of the present application decrease in sequence, and the value ranges of K1 and K2 are set between 0.001 and 0.1 to reduce the brightness difference between the second display area and the opening area and the brightness difference between the first display area and the second display area. The inventors of the present application have found that when the values of K1 and K2 are set between 0.001 and 0.1, the human eye cannot perceive the brightness differences among the first display area, the second display area, and the opening area, thereby improving the integrated black effect of the display device in the black state. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 A plan view of the display device provided by the embodiment of the present application;

[0026] Figure 2 A top view of the display device provided by the embodiment of the present application;

[0027] Figure 3 Along Figure 1 The first cross-sectional structure diagram taken along the B-B direction of;

[0028] Figure 4 For Figure 1 The second cross-sectional structure diagram taken along the B-B direction;

[0029] Figure 5 For Figure 1 The third cross-sectional structure diagram taken along the B-B direction. Detailed Embodiments

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the following will further describe this application in detail with reference to the accompanying drawings. Please refer to the diagrams in the accompanying drawings, where the same component symbols represent the same components. The following description is based on the specific embodiments of this application shown, and it should not be regarded as limiting other specific embodiments not detailed herein. The term "embodiment" used in this specification means an instance, example, or illustration.

[0031] In the description of this application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationships shown in the accompanying drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of this application, "a plurality of" means two or more, unless otherwise specifically defined.

[0032] An embodiment of this application provides a display device. The following will be described in detail respectively. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments.

[0033] An embodiment of the present application provides a display device, which includes a display panel. The display panel includes a first display area, a second display area, and an opening area. The first display area and the second display area are adjacent. The second display area and the first display area are adjacent. In the black state, the brightnesses of the first display area, the second display area, and the opening area decrease in sequence. The first display area has a first brightness value I1. The second display area and the opening area have a first brightness difference value ΔI1. The ratio of the first brightness difference value ΔI1 to the first brightness value I1 is K1, and the value range of K1 is from 0.001 to 0.1. The first display area and the second display area have a second brightness difference value ΔI2. The ratio of the second brightness difference value ΔI2 to the first brightness value I1 is K2, and the value range of K2 is from 0.001 to 0.1. In the black state, the brightnesses of the first display area, the second display area, and the opening area of the embodiment of the present application decrease in sequence, and the value ranges of K1 and K2 are set between 0.001 and 0.1 to reduce the brightness difference between the second display area and the opening area and the brightness difference between the first display area and the second display area. The inventors of the present application have found that when the values of K1 and K2 are set between 0.001 and 0.1, the human eye cannot perceive the brightness differences among the first display area, the second display area, and the opening area, thereby improving the integrated black effect of the display device in the black state.

[0034] The display device provided by the present application will be elaborated in detail through specific embodiments below.

[0035] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 which is a plan view of the display device provided by the embodiment of the present application, Figure 2 which is a top view of the display device provided by the embodiment of the present application, Figure 3 and Figure 1 which is a first cross-sectional structure diagram taken along the B-B direction of

[0036] It should be understood that the opening area 10c of the display device 100 can be a regular shape, such as a rectangle, a circle, etc., or an irregular shape, such as a water droplet shape, etc. For example, Figure 1 the opening area 10c shown in Figure 2The shown opening area 10c is rectangular. It should be understood that the shape of the opening area is not limited in the embodiments of the present application.

[0037] In the embodiments of the present application, in the black state, the brightness of the first display area 10a, the second display area 10b, and the opening area 10c decreases in sequence. The first display area 10a has a first brightness value I1, the second display area 10b and the opening area 10c have a first brightness difference value ΔI1, the ratio of the first brightness difference value ΔI1 to the first brightness value I1 is K1, and the value range of K1 is from 0.001 to 0.1. The first display area 10a and the second display area 10b have a second brightness difference value ΔI2, the ratio of the second brightness difference value ΔI2 to the first brightness value I1 is K2, and the value range of K2 is from 0.001 to 0.1. In the embodiments of the present application, the union of the first display area 10a, the second display area 10b, and the opening area 10c sets the value ranges of K1 and K2 between 0.001 and 0.1 to reduce the brightness difference between the second display area and the opening area, and the brightness difference between the first display area and the second display area. The inventors of the present application found that when the values of K1 and K2 are set between 0.001 and 0.1, the human eye cannot perceive the brightness difference between the second display area and the opening area, and between the first display area and the second display area, thereby improving the integrated black effect of the display device in the black state.

[0038] In some embodiments, the second brightness difference value ΔI2 is less than or equal to the first brightness difference value ΔI1. In the embodiments of the present application, the brightness difference values between adjacent two areas can be equal or unequal. When the brightness difference values between adjacent two areas are equal, the brightness of the first display area 10a, the second display area 10b, and the opening area 10c changes in a gradient manner, thereby reducing the brightness difference between the display area and the opening area 10c, so that the brightness of each area in the black state satisfies the Weber's law K = ΔI / I. In Weber's law, it shows that there is a difference between the brightness of an object and the background brightness around it (for example, the brightness that the human eye can just perceive). The perceived brightness of the human eye does not simply depend on the light intensity, but more on the brightness contrast. Among them, K is a constant. The inventors of the present application found that when the value of K is set between 0.001 and 0.1, the human eye cannot perceive the brightness difference between the second display area 10b and the opening area 10c, thereby improving the integrated black effect of the display device 100 in the black state.

[0039] It should be understood that the difference value between adjacent two areas in the embodiments of the present application refers to the relative change value of the brightness within adjacent two areas.

[0040] The black state refers to the operation of the display device 100 to display information such as the screen display time, date information, and battery power.

[0041] The display device 100 provided by the embodiments of the present application can be used as a vehicle dashboard. With the development of vehicle intelligence, image recognition technology has been gradually applied to vehicles to achieve functions such as in-vehicle payment, monitoring of the driver's physical signs or emotions. To further improve the aesthetics inside the vehicle, more and more vehicle models on the market install the sensor 30 for image recognition under the screen of the vehicle dashboard. It should be understood that when the display device 100 provided by the embodiments of the present application is used as a vehicle dashboard, the black state means that the screen of the display device 100 only displays key information such as speed, engine speed, and fuel level.

[0042] The sensor 30 can be a camera or a biometric component, etc.

[0043] The sensor 30 is disposed on the backlight side of the display panel 10, and the sensor 30 corresponds to the opening area 10c.

[0044] In the embodiments of the present application, the brightness of the first display area 10a, the second display area 10b, and the opening area 10c decreases in sequence, so that the brightness of the first display area 10a, the second display area 10b, and the opening area 10c changes in a gradient manner.

[0045] It should be noted that the opening area 10c is not provided with a backlight module 20. In theory, the brightness value of the opening area 10c in the black state is 0 nits. However, the display device 100 in the related art cannot completely solve the problem of light leakage. Therefore, there is still weak light in the opening area 10c in the black state.

[0046] In some embodiments, the second display area 10b includes at least two sub-areas. The two sub-areas include a first sub-area 10b1 and a second sub-area 10b2. The second sub-area 10b2 surrounds the opening area 10c. The first sub-area 10b1 is disposed on a side of the second sub-area 10b2 away from the opening area 10c. The first sub-area 10b1 and the second sub-area 10b2 have a third brightness difference value ΔI3. The ratio of the third brightness difference value ΔI3 to the first brightness value I1 is K3. The value range of K3 is from 0.001 to 0.1. It should be understood that the brightness of the first display area 10a, the first sub-area 10b1, the second sub-area 10b2, and the opening area 10c in the embodiments of the present application changes in a gradient manner, thereby reducing the brightness difference between two adjacent areas, and thus improving the integrated black effect of the display device 100 in the black state.

[0047] In some embodiments, the third brightness difference value ΔI3 is less than or equal to the first brightness difference value ΔI1.

[0048] In some embodiments, the brightness difference between the opening area 10c and the second sub-area 10b2 is the first brightness difference value ΔI1. The first sub-area 10b1 and the second sub-area 10b2 have a third brightness difference value ΔI3. The brightness difference between the second sub-area and the first display area is the second brightness difference value ΔI2. The first brightness difference value ΔI1, the second brightness difference value ΔI2, and the third brightness difference value ΔI3 are equal. That is, the first brightness value of the first display area 10a is I1, the brightness of the first sub-area 10b1 is I1 - ΔI1, the brightness of the second sub-area 10b2 is I1 - 2ΔI1, and the brightness of the opening area 10c is I1 - 3ΔI1. That is to say, in the black state, the brightness of the first display area 10a, the first sub-area 10b1, the second sub-area 10b2, and the opening area 10c changes in a gradient manner, thereby improving the integrated black effect of the display device 100.

[0049] In some embodiments, the aperture ratio of the first display area 10a is greater than the aperture ratio of the first sub-area 10b1, and the aperture ratio of the first sub-area 10b1 is greater than the aperture ratio of the second sub-area 10b2. In the embodiments of the present application, by adjusting the pixel aperture ratio of each area, the brightness values of the first sub-area 10b1 and the second sub-area 10b2 are adjusted, thereby reducing the brightness difference between two adjacent areas, and thus improving the integrated black effect of the display device 100 in the black state.

[0050] Specifically, the display panel 10 of the present application includes a color filter layer 1022. The color filter layer 1022 corresponds to the first display area 10a, the first sub-area 10b1, and the second sub-area 10b2. The color filter layer 1022 includes a black matrix 1022a and a plurality of color resistors disposed in the black matrix 1022a. The black matrix 1022a includes a plurality of black matrix blocks 1022a1 disposed at intervals. Along the direction D1 from the first display area 10a to the opening area 10c, the width d3 of the black matrix block 1022a1 corresponding to the first display area 10a is smaller than the width d2 of the black matrix block 1022a1 corresponding to the first sub-area 10b1. The width d1 of the black matrix block 1022a1 corresponding to the first sub-area 10b1 is smaller than the width d2 of the black matrix block 1022a1 corresponding to the second sub-area 10b2. In the embodiments of the present application, by increasing the width d1 of the black matrix block 1022a1 corresponding to the first sub-area 10b1 and the width d2 of the black matrix 1022a corresponding to the second sub-area 10b2, the aperture ratios of the first sub-area 10b1 and the second sub-area 10b2 are reduced, so that the aperture ratios of the first display area 10a, the first sub-area 10b1, and the second sub-area 10b2 decrease in sequence, and the brightness difference between adjacent areas is reduced, thereby improving the integrated black effect of the display device 100 in the black state.

[0051] In some embodiments, along the direction D1 from the first display area 10a to the opening area 10c, the ratio of the width d3 of the black matrix block 1022a1 corresponding to the first display area 10a, the width d2 of the black matrix block 1022a1 corresponding to the first sub-area 10b1, and the width d1 of the black matrix block 1022a1 corresponding to the second sub-area 10b2 is: 1:(1 to 2.5):(2.5 to 5). Among them, along the direction from the first display area 10a to the opening area 10c, the ratio of the width d3 of the black matrix block 1022a1 corresponding to the first display area 10a, the width d2 of the black matrix block 1022a1 corresponding to the first sub-area 10b1, and the width d1 of the black matrix block 1022a1 corresponding to the second sub-area 10b2 can be any one of 1:1.5:3, 1:2:3, 1:2:4, 1:2.5:3.5, 1:2.5:4, or 1:2.5:5. The inventors of the present application found that when the ratio of the width d3 of the black matrix block 1022a1 corresponding to the first display area 10a, the width d2 of the black matrix block 1022a1 corresponding to the first sub-area 10b1, and the width d1 of the black matrix block 1022a1 corresponding to the second sub-area 10b2 is 1:(1 to 2.5):(2.5 to 5) along the direction from the first display area 10a to the opening area 10c, the aperture ratios of the first display area 10a, the first sub-area 10b1, and the second sub-area 10b2 decrease in sequence, and the brightness difference between adjacent regions decreases, further improving the integrated black effect of the display device 100 in the black state.

[0052] In some embodiments, the area of the color resistor 1022b corresponding to the first display area 10a is larger than the area of the color resistor 1022b corresponding to the first sub-area 10b1, and the area of the color resistor corresponding to the first sub-area 10b1 is larger than the area of the color resistor 1022b corresponding to the second sub-area 10b2. Specifically, the ratio of the area of the color resistor 1022b corresponding to the first display area 10a, the area of the color resistor 1022b corresponding to the first sub-area 10b1, and the area of the color resistor 1022b corresponding to the second sub-area 10b2 is: 1:(0.5 - 1):(0 - 0.5). For example, the ratio of the area of the color resistor 1022b corresponding to the first display area 10a, the area of the color resistor 1022b corresponding to the first sub-area 10b1, and the area of the color resistor 1022b corresponding to the second sub-area 10b2 can be any one of 1:0.6:0.4, 1:0.8:0.4, 1:0.9:0.4, 1:0.6:0.2, 1:0.6:0.3, or 1:0.7:0.4. The inventors of the present application found that when the ratio of the area of the color resistor 1022b corresponding to the first display area 10a, the area of the color resistor 1022b corresponding to the first sub-area 10b1, and the area of the color resistor 1022b corresponding to the second sub-area 10b2 is 1:(0.5 - 1):(0 - 0.5), the aperture ratios of the first display area 10a, the first sub-area 10b1, and the second sub-area 10b2 decrease in sequence, and the brightness difference between adjacent regions decreases, further improving the integrated black effect of the display device 100 in the black state.

[0053] In some embodiments, the plurality of color resistors 1022b include a blue color resistor, a red color resistor, and a green color resistor. Among them, in the first display area 10a, the first sub-area 10b1, and the second sub-area 10b2, the ratio of the area of the green color resistor, the area of the red color resistor, and the area of the blue color resistor corresponding to different regions is: (1:1:1):(0.9 - 0.8:1:1):(0.8 - 0.7:0.9 - 0.8:1).

[0054] For example, the ratio of the area of the green color resistor, the area of the red color resistor, and the area of the blue color resistor corresponding to the first display area 10a, the first sub-area 10b1, and the second sub-area 10b2 is (1:1:1):(0.9:1:1):(0.8:0.9:1).

[0055] For example, the ratio of the area of the green color resistor, the area of the red color resistor, and the area of the blue color resistor corresponding to the first display area 10a, the first sub-area 10b1, and the second sub-area 10b2 is (1:1:1):(0.8:1:1):(0.8:0.9:1).

[0056] For example, the ratio of the areas of the green color filter, the red color filter, and the blue color filter corresponding to the first display area 10a, the first sub-area 10b1, and the second sub-area 10b2 is (1:1:1):(0.9:1:1):(0.7:0.8:1).

[0057] For example, the ratio of the areas of the green color filter, the red color filter, and the blue color filter corresponding to the first display area 10a, the first sub-area 10b1, and the second sub-area 10b2 is (1:1:1):(0.8:1:1):(0.7:0.8:1).

[0058] For example, the ratio of the areas of the green color filter, the red color filter, and the blue color filter corresponding to the first display area 10a, the first sub-area 10b1, and the second sub-area 10b2 is (1:1:1):(0.8:1:1):(0.7:0.8:1).

[0059] It can be understood that by adjusting the ratio of the areas of the red color filter, the green color filter, and the blue color filter in each of the first display area 10a, the first sub-area 10b1, and the second sub-area 10b2, and utilizing the reflectivity differences of the red color filter, the green color filter, and the blue color filter, the brightness of the first display area 10a, the first sub-area 10b1, and the second sub-area 10b2 can be adjusted respectively. On the premise of ensuring the integrated black effect, the overall light transmittance of the display panel is reduced less, the transmittance of the display device is improved, the light extraction efficiency is ensured, and the display effect is enhanced.

[0060] In some embodiments, the display panel further includes a plurality of data lines, which are arranged at intervals. Among them, the width of the data line corresponding to the first sub-area 10b1 is greater than the width of the data line corresponding to the second sub-area 10b2, and the width of the data line corresponding to the second sub-area 10b2 is greater than the width of the data line corresponding to the first display area 10a, so that the aperture ratios of the first display area 10a, the first sub-area 10b1, and the second sub-area 10b2 decrease in sequence, and the brightness difference between adjacent regions is reduced, thereby improving the integrated black effect of the display device 100 in the black state.

[0061] It should be understood that the display panel 10 includes an array substrate 101, a counter substrate 1021, and a liquid crystal layer 103 disposed between the array substrate 101 and the counter substrate 1021. A color filter layer 1022 is disposed on the counter substrate 1021 to form a color filter substrate 102. In another embodiment, the color filter layer 1022 may also be disposed on the array substrate 101 to form a COA (color film on array) substrate.

[0062] In some embodiments, the first luminance value I1 ranges from 0.4 nits to 1 nit. For example, the first luminance value I1 can be 0.4 nits, 0.5 nits, 0.6 nits, 0.7 nits, 0.8 nits, 0.9 nits, or 1 nit. The value range of the first luminance difference value ΔI1 is from 0.001 nit to 0.1 nit. For example, the first luminance difference value ΔI1 can be 0.001 nit, 0.003 nit, 0.005 nit, 0.006 nit, 0.008 nit, 0.009 nit, or 0.1 nit. In this application, the value range of the first luminance difference value ΔI1 is set from 0.001 nit to 0.1 nit, that is, the luminance values of the first display area 10a, the first sub-area 10b1, the second sub-area 10b2, and the opening area 10c decrease in sequence, so that the Weber ratio K ranges from 0.001 to 0.1. The inventors of this application found that when the value of K is set between 0.001 and 0.1, the human eye cannot perceive the luminance difference between the first display area 10a, the second display area 10b, and the opening area 10c, thereby improving the integrated black effect of the display device 100 in the black state.

[0063] Please refer to Figure 4 , Figure 4 is Figure 1 the second cross-sectional structure schematic diagram taken along the B-B direction. The display device 100 provided by the embodiments of this application and Figure 2The difference of the provided display device 100 is that the backlight module 20 includes a light guide plate 201 and a backlight source 202 disposed on at least one side of the light guide plate 201. The light guide plate 201 has a plurality of dot structures 201a disposed on the backlight side away from the display panel 10. The density of the dot structures 201a corresponding to the first display area 10a is greater than the density of the dot structures 201a corresponding to the first sub-area 10b1. The density of the dot structures 201a corresponding to the first sub-area 10b1 is greater than the density of the dot structures 201a corresponding to the second sub-area 10b2. In the embodiment of the present application, by adjusting the density of the dot structures 201a of the light guide plate 201 corresponding to each area of the display panel 10, the density of the dot structures 201a corresponding to the first display area 10a is greater than the density of the dot structures 201a corresponding to the first sub-area 10b1. The density of the dot structures 201a corresponding to the first sub-area 10b1 is greater than the density of the dot structures 201a corresponding to the second sub-area 10b2, so that the brightness of the first display area 10a, the brightness of the first sub-area 10b1, the brightness of the second sub-area 10b2, and the brightness of the opening area 10c decrease in sequence, reducing the brightness difference among the first display area 10a, the first sub-area 10b1, the second sub-area 10b2, and the opening area 10c, and making the value of the Weber ratio K be between 0.001 and 0.1. The inventors of the present application found that when the value of K is set between 0.001 and 0.1, the human eye cannot perceive the brightness difference between the second display area 10b and the opening area 10c, thereby improving the integrated black effect of the display device 100 in the black state.

[0064] In some embodiments, the ratio of the density of the dot structures 201a corresponding to the first display area 10a, the density of the dot structures 201a corresponding to the first sub-area 10b1, and the density of the dot structures 201a corresponding to the second sub-area 10b2 is: 1:(0.5 - 1):(0 - 0.5). For example, the ratio of the density of the dot structures 201a corresponding to the first display area 10a, the density of the dot structures 201a corresponding to the first sub-area 10b1, and the density of the dot structures 201a corresponding to the second sub-area 10b2 can be any one of 1:0.6:0.4, 1:0.8:0.4, 1:0.9:0.4, 1:0.6:0.2, 1:0.6:0.3, or 1:0.7:0.4. The inventors of the present application found that when the ratio of the density of the dot structures 201a corresponding to the first display area 10a, the density of the dot structures 201a corresponding to the first sub-area 10b1, and the density of the dot structures 201a corresponding to the second sub-area 10b2 is 1:(0.5 - 1):(0 - 0.5), the brightness difference between adjacent areas of the first display area 10a, the first sub-area 10b1, and the second sub-area 10b2 decreases, further improving the integrated black effect of the display device 100 in the black state.

[0065] It should be understood that the density of the dot structure 201a in the embodiments of the present application refers to the number of dot structures 201a per unit area. When the density of the dot structure 201a is small, the number of dot structures 201a per unit area is small; when the density of the dot structure 201a is large, the number of dot structures 201a per unit area is large.

[0066] Please refer to Figure 5 , Figure 5 FIG. 3 is a third schematic structural diagram of the display device provided by the embodiments of the present application. The display device 100 provided by the embodiments of the present application can be understood as Figure 2 and Figure 3 the combination of the display devices 100 provided by

[0067] Specifically, in the display device 100 provided by the embodiments of the present application, along the direction D1 from the first display area 10a to the opening area 10c, the width d3 of the black matrix block 1022a1 corresponding to the first display area 10a is smaller than the width d2 of the black matrix block 1022a1 corresponding to the first sub-area 10b1. The width d2 of the black matrix block 1022a1 corresponding to the first sub-area 10b1 is smaller than the width d1 of the black matrix block 1022a1 corresponding to the second sub-area 10b2.

[0068] The density of the dot structure 201a corresponding to the first display area 10a is greater than the density of the dot structure 201a corresponding to the first sub-area 10b1. The density of the dot structure 201a corresponding to the first sub-area 10b1 is greater than the density of the dot structure 201a corresponding to the second sub-area 10b2.

[0069] Of course, it is also possible to set the width of the black matrix block 1022a1 in the second sub-area 10b2 to be the same as the width of the black matrix block 1022a1 corresponding to the first sub-area 10b1, but by adjusting the density of the dot structure 201a corresponding to the second sub-area 10b2 to be less than the density of the dot structure 201a corresponding to the first sub-area 10b1.

[0070] By adopting the above implementation scheme, the opening accuracy of the black matrix surrounding the color film substrate corresponding to the second sub-area 10b2 close to the opening area 10c can be reduced, and the process manufacturing difficulty of the display panel can be reduced.

[0071] The embodiments of the present application simultaneously adjust the width of the black matrix block 1022a1 in each area and the density of the dot structure 201a of the light guide plate 201, so as to reduce the brightness difference between adjacent areas of the first display area 10a, the first sub-area 10b1, and the second sub-area 10b2, thereby further improving the integrated black effect of the display device 100 in the black state.

[0072] In summary, although the present application has been disclosed above with preferred embodiments, the above preferred embodiments are not intended to limit the present application. Those of ordinary skill in the art can make various changes and modifications without departing from the spirit and scope of the present application. Therefore, the protection scope of the present application shall be subject to the scope defined by the claims.

Claims

1. A display device, characterized in that, Comprising: A display panel, the display panel includes a first display area, a second display area, and an opening area, the first display area and the second display area are adjacent, and the second display area and the opening area are adjacent; A backlight module corresponding to the first display area and the second display area; A sensor disposed on the backlight side of the display panel, and the sensor corresponds to the opening area; Wherein, the backlight module includes a light guide plate and a backlight source disposed on at least one side of the light guide plate, the light guide plate has a plurality of dot structures disposed on the backlight side away from the display panel, and the density of the dot structures corresponding to the first display area is greater than the density of the dot structures corresponding to the second display area, so that in the black state, the brightness of the first display area, the second display area, and the opening area decreases in sequence, the first display area has a first brightness value I1, the second display area and the opening area have a first brightness difference value ΔI1, the ratio of the first brightness difference value ΔI1 to the first brightness value I1 is K1, and the value range of K1 is 0.001 to 0.1, the first display area and the second display area have a second brightness difference value ΔI2, and the ratio of the second brightness difference value ΔI2 to the first brightness value I1 is K2, and the value range of K2 is 0.001 to 0.1; Wherein, in the black state, the display panel is used to display time information, date information, and power information, or is used to display speed information, rotation speed information, and fuel quantity information.

2. The display device according to claim 1, characterized in that, The second brightness difference value ΔI2 is less than or equal to the first brightness difference value ΔI1.

3. The display device according to claim 1, wherein The second display area includes at least two sub-areas, the two sub-areas include a first sub-area and a second sub-area, the second sub-area surrounds the opening area, and the first sub-area is disposed on a side of the second sub-area away from the opening area; the first sub-area and the second sub-area have a third brightness difference value ΔI3, and the ratio of the third brightness difference value ΔI3 to the first brightness value I1 is K3, and the value range of K3 is 0.001 to 0.

1.

4. The display device according to claim 3, wherein The third brightness difference value ΔI3 is less than or equal to the first brightness difference value ΔI1.

5. The display device according to claim 3, characterized in that, The brightness difference between the opening area and the second sub-area is the first brightness difference value ΔI1, the brightness difference between the first sub-area and the first display area is the second brightness difference value ΔI2, and the first brightness difference value ΔI1, the second brightness difference value ΔI2, and the third brightness difference value ΔI3 are equal.

6. The display device according to claim 3, characterized in that, The aperture ratio of the first display area is greater than the aperture ratio of the first sub-area, and the aperture ratio of the first sub-area is greater than the aperture ratio of the second sub-area.

7. The display device according to claim 6, characterized in that, The display panel includes a color filter layer corresponding to the first display area, the first sub-area, and the second sub-area, the color filter layer includes a black matrix and a plurality of color resistors disposed in the black matrix, and the black matrix includes a plurality of black matrix blocks disposed at intervals; Wherein In the direction from the first display area to the opening area, the width of the black matrix block corresponding to the first display area is smaller than the width of the black matrix block corresponding to the first sub-area, and the width of the black matrix block corresponding to the first sub-area is smaller than the width of the black matrix block corresponding to the second sub-area.

8. The display device according to claim 7, wherein, In the direction from the first display area to the opening area, the ratio of the width of the black matrix block corresponding to the first display area, the width of the black matrix block corresponding to the first sub-area, and the width of the black matrix block corresponding to the second sub-area is: 1:(1 - 2.5):(2.5 - 5).

9. The display device according to claim 7, wherein The area of the color filter corresponding to the first display area is larger than the area of the color filter corresponding to the first sub-area, and the area of the color filter corresponding to the first sub-area is larger than the area of the color filter corresponding to the second sub-area. Among them, the ratio of the area of the color filter corresponding to the first display area, the area of the color filter corresponding to the first sub-area, and the area of the color filter corresponding to the second sub-area is: 1:(0.5 - 1):(0 - 0.5).

10. The display device according to claim 7, wherein The multiple color filters include a blue color filter, a red color filter, and a green color filter. Among them, in the first display area, the first sub-area, and the second sub-area, the ratio of the area of the green color filter, the area of the red color filter, and the area of the blue color filter corresponding to different regions is: (1:1:1):(0.9 - 0.8:1:1):(0.8 - 0.7:0.9 - 0.8:1).

11. The display device according to claim 3, wherein, The two sub-areas include a first sub-area and a second sub-area. The second sub-area surrounds the opening area, and the first sub-area is arranged on the side of the second sub-area away from the opening area; The density of the dot structure corresponding to the first display area is greater than the density of the dot structure corresponding to the first sub-area, and the density of the dot structure corresponding to the first sub-area is greater than the density of the dot structure corresponding to the second sub-area.

12. The display device according to claim 11, wherein The ratio of the density of the dot structure corresponding to the first display area, the density of the dot structure corresponding to the first sub-area, and the density of the dot structure corresponding to the second sub-area is: 1:(0.5 - 1):(0 - 0.5).

13. The display device according to claim 1, wherein, The first luminance value I1 is between 0.4 nits and 1 nit, and the value range of the first luminance difference value ΔI1 is from 0.001 nit to 0.1 nit.

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