CN218956977U - Display panel and display device - Google Patents

Abstract

The embodiment of the application provides a display panel and a display device, wherein the display panel comprises cover glass and a sensor; the cover glass comprises a display area sensing area and a first frame area: at least one sensor is positioned in the sensing area, and the sensor comprises a first surface and a second surface which are perpendicular to each other; the distance between the first surface and the first edge is not smaller than a first preset value; and/or the distance between the second surface and the second edge is not smaller than a second preset value. According to the embodiment of the application, the sensor is arranged between the first frame area and the display area, so that the sensor has the characteristic of small occupied area, and the frame of the display panel is shortened and the cost is reduced under the condition that the display device has an ambient light adjusting function; meanwhile, the position of the sensor in the sensing area needs to meet the dimensional relation, the ink area attached to the rear cover plate glass is guaranteed not to shield the sensor, the sensor can receive external environment light, and a plurality of sensors are affected by backlight light sources and are consistent, so that photosensitive errors are reduced.

Description

Display panel and display device

Technical Field

The application relates to the technical field of display, in particular to a display panel and a display device.

Background

At present, in the design of liquid crystal display panel (Liquid Crystal Display, LCD) products, a narrow frame is continuously pursued, but is limited by the influence of the requirements of functional modules of mobile phone products, and a certain function cannot be directly canceled, so that the frame cannot be continuously narrowed, for example, an ambient light sensor needs to be installed on the upper side of a mobile phone, an infrared (Infrared Radiation, IR) hole silk-screen printing area needs to be synchronously reserved on the upper side of a cover plate, and the upper frame is limited in narrowing.

Disclosure of Invention

The application provides a display panel and a display device aiming at the defects of the prior mode.

In a first aspect, embodiments of the present application provide a display panel, including:

cover glass and sensor;

the cover glass comprises a display area, a sensing area surrounding the display area and a first frame area surrounding the sensing area: at least one sensor is positioned in the sensing area, and the sensor comprises a first surface and a second surface which are perpendicular to each other;

the side closest to the first surface in the sides parallel to the first surface of the first frame area is the first side, and the distance between the first surface and the first side is not smaller than a first preset value; and/or the side closest to the second surface in the sides parallel to the second surface of the display area is the second side, and the distance between the second surface and the second side is not smaller than a second preset value.

In some embodiments of the present application, the display panel includes at least a plurality of sensors, the plurality of sensors being located within the sensing region, first faces of the different sensors being coplanar, second faces of the different sensors being parallel to each other.

In some embodiments of the present application, the sensor includes a photosensitive thin film transistor.

In some embodiments of the present application, the plurality of sensors includes a red light-sensitive thin film transistor, a green light-sensitive thin film transistor, a blue light-sensitive thin film transistor, and a white light-sensitive thin film transistor, respectively.

In some embodiments of the present application, the first frame region includes a third side perpendicular to the first side, a square of a half of a length tolerance of the third side, a square of a device fit tolerance, a square of a length tolerance of the second side, and a square root of a sum of squares of a spacing tolerance between the display region and the first side are equal to the first preset value.

In some embodiments of the present application, the display area includes a fourth side perpendicular to the second side, a distance between the fourth side and the first side is not less than a third preset value, and a sum of the first preset value and a distance between the display area and the first frame area is equal to the third preset value.

In some embodiments of the present application, the display panel further includes a backlight, the backlight is fixed on one side of the cover glass, the backlight includes a second frame area, and the sensor is located between the display area and an orthographic projection of the second frame area on the cover glass.

In some embodiments of the present application, a difference between a distance between the sensor and the second bezel area and a width of the second bezel area in a direction perpendicular to the second face is equal to a second preset value; and/or the width of the backlight along the direction vertical to the second face is multiplied by the distance between the actual position of the second border area and the position of the second border area closest to the display area, divided by the distance between the limit position of the backlight close to the display area and the limit position far from the display area, and the width of the second border area subtracted along the direction vertical to the second face is equal to a second preset value.

In some embodiments of the present application, the distance between the sensor and the display area is 0.12mm, the first preset value is 0.13 mm, the distance between the second frame area and the display area is 0.23 mm, and the second preset value is 12.4 mm.

In a second aspect, embodiments of the present application provide a display device, including: a display panel as in any one of the embodiments of the first aspect.

The beneficial technical effects that technical scheme that this application embodiment provided brought include: according to the embodiment of the application, the sensor is arranged between the first frame area and the display area, so that the sensor has the characteristic of small occupied area, and the frame of the display panel is shortened and the cost is reduced under the condition that the display device has an ambient light adjusting function; meanwhile, the position of the sensor in the sensing area needs to meet the dimensional relation, the ink area attached to the rear cover plate glass is guaranteed not to shield the sensor, the sensor can receive external environment light, and a plurality of sensors are affected by backlight light sources and are consistent, so that photosensitive errors are reduced.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a schematic top view of a display panel according to one embodiment of the present disclosure;

fig. 2 is a schematic top view of a display panel according to another embodiment of the disclosure.

Detailed Description

Examples of embodiments of the present application are illustrated in the accompanying drawings, in which like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. Further, if detailed description of the known technology is not necessary for the illustrated features of the present application, it will be omitted. The embodiments described below by referring to the drawings are exemplary only for the purpose of illustrating the present application and are not to be construed as limiting the present application.

It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.

The application provides a display panel and display device, aims at solving the technical problem in the prior art. The following describes the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems in detail with specific embodiments.

In a first aspect, embodiments of the present application provide a display panel. Fig. 1 is a schematic top view of a display panel according to an embodiment of the present application. A display panel, comprising:

cover glass and sensor;

the cover glass comprises a display area 1, a sensing area 2 surrounding the display area 1 and a first frame area 3 surrounding the sensing area 2: at least one sensor is located within the sensing region 2, the sensor comprising a first face and a second face that are perpendicular to each other;

the side closest to the first surface among the sides parallel to the first surface of the first frame area 3 is the first side, and the distance between the first surface and the first side is not smaller than a first preset value; and/or, the side closest to the second surface among the sides parallel to the second surface of the display area 1 is the second side, and the distance between the second surface and the second side is not smaller than a second preset value.

In order to achieve the purposes of continuously shortening the module frame and reducing the cost, the embodiment of the application integrates the environment light adjusting function of the whole machine on a module product, and the detection of the environment light is achieved by utilizing the photosensitive characteristic of the sensor.

Because the sensor for detecting the ambient light is arranged between the display area 1 and the first frame area 3, the first frame area 3 of the cover plate glass needs to be avoided, so that the sensor is ensured not to be shielded by the ink after being attached, and the sensor can receive the light incident by the external light source.

In order to ensure the consistency influenced by the backlight light source, the condition that the plurality of sensors can be simultaneously positioned in or outside the second frame area 4 of the backlight source in the state of the backlight assembly limit is required to be ensured, so that the distance between the first surface and the first edge is not smaller than a first preset value, the distance between the second surface and the second edge is not smaller than a second preset value, and the positions of the sensors are limited.

In some embodiments of the present application, the display panel includes at least a plurality of sensors, the plurality of sensors being located within the sensing area 2, the first faces of the different sensors being coplanar, and the second faces of the different sensors being parallel to each other.

In this embodiment, the first frame area 3 is spaced apart from the display area 1 by a certain distance, and a plurality of sensors are accommodated in the distance, i.e. the sensors are integrated between the first frame area 3 and the display area 1. The change of external environment light is detected through the photosensitive characteristic of the sensor, and a special environment light module area is not required to be arranged in the embodiment of the application, so that the frame can be shortened, and the cost can be reduced.

In some embodiments of the present application, the sensor includes a photosensitive thin film transistor.

In this embodiment, the photosensitive thin film transistor is a sensitive device having a response or conversion function to an external optical signal or optical radiation. The photosensitive thin film transistor is a sensor which converts an optical signal into an electric signal by utilizing a photosensitive element, the sensitive wavelength of the photosensitive element is near the wavelength of visible light, the photosensitive element can sense the brightness change of light rays and output weak electric signals, and the photosensitive thin film transistor is a bipolar transistor which can be used as a photosensitive sensor (the base region can be illuminated) through simple electronic circuit amplification treatment. When light is irradiated on the base region, the base generates a current. Depending on the type of photo-transistor, the light only acts as a bias (two-pin photo-transistor) or only as a change in the original base current (three-pin photo-transistor).

In some embodiments of the present application, the plurality of sensors includes a red light-sensitive thin film transistor, a green light-sensitive thin film transistor, a blue light-sensitive thin film transistor, and a white light-sensitive thin film transistor, respectively.

In one embodiment, the display panel includes at least three sensors including a red light-sensitive thin film transistor, a green light-sensitive thin film transistor, and a blue light-sensitive thin film transistor, respectively.

In another embodiment, the display panel includes at least four sensors including a red light-sensitive thin film transistor, a green light-sensitive thin film transistor, a blue light-sensitive thin film transistor, and a white light-sensitive thin film transistor, respectively.

The red light photosensitive thin film transistor corresponds to a region covering red resistance and black matrix slotting, the green light photosensitive thin film transistor corresponds to a region covering green resistance and black matrix slotting, the blue light photosensitive thin film transistor corresponds to a region covering blue resistance and black matrix slotting, and the white light photosensitive thin film transistor corresponds to a region covering colorless resistance and non-black matrix slotting.

In this embodiment, as shown in fig. 1, the line of the drawing parallel to the second surface is taken as a dividing line, and the dividing line passes through a V-shaped groove or a U-shaped groove, and the V-shaped groove or the U-shaped groove can be used for accommodating the front camera and other sensor elements. Two kinds of sensors are respectively arranged on the left side and the right side of the dividing line, for example, a red light photosensitive film transistor and a green light photosensitive film transistor are sequentially arranged on the left side of the dividing line, and a blue light photosensitive film transistor and a white light photosensitive film transistor are sequentially arranged on the right side of the dividing line. The left photosensitive thin film transistor and the right photosensitive thin film transistor are respectively connected with different metal wires, such as a red photosensitive thin film transistor and a green photosensitive thin film transistor on the left are connected with a source wire and a grid wire which pass through the left first frame area 3, and a blue photosensitive thin film transistor and a white photosensitive thin film transistor on the right are connected with a source wire and a grid wire which pass through the right first frame area 3.

In some embodiments of the present application, the first frame area 3 includes a third side perpendicular to the first side, a sum of a square of half a length tolerance of the third side, a square of a device fit tolerance, a square of a length tolerance of the second side, and a square of a spacing tolerance between the display area 1 and the first side is equal to a first preset value.

In this embodiment, the first surface of the sensor is the surface of the sensor away from the display area 1, the distance L2 between the first surface and the display area 1 is 0.12 millimeters (mm), the length tolerance of the third edge of the first frame area 3 of the cover glass is ±0.1 millimeters, and the fitting tolerance of the device is ±0.12mm. In this embodiment, the length tolerance of the second side and the interval tolerance between the display area 1 and the first surface are smaller, which is negligible, and the two tolerances are 0 for easy calculation.

Substituting calculation to obtain the distance L1= v ((0.1/2) 2+0.12 2+0 2) 0.13 mm between the sensor and the first frame area 3, wherein the first preset value is 0.13 mm. The distance L1 between the sensor and the first frame area 3, that is, the distance L1 between the first surface and the first edge, where the distance L1 is not smaller than a first preset value.

In some embodiments of the present application, the display area 1 includes a fourth side perpendicular to the second side, a distance between the fourth side and the first side is not less than a third preset value, and a sum of the first preset value and a distance between the display area 1 and the first frame area 3 is equal to the third preset value.

Since the distance L1 between the first surface of the sensor and the first frame area 3 is not less than 0.13 mm, and the distance L2 between the first surface of the sensor and the display area 1 is 0.12mm, the distance l0=l1+l2 between the first frame area 3 and the display area 1 in the direction perpendicular to the first surface, l0=0.13+0.12=0.25 mm, and the third preset value is 0.25 mm, i.e., L0 is not less than 0.25 mm.

In some embodiments of the present application, the display panel further includes a backlight, the backlight is fixed on one side of the cover glass, the backlight includes a second frame area 4, and the sensor is located between the display area 1 and the orthographic projection of the second frame area 4 on the cover glass.

In this embodiment, the backlight does not shade the pixel unit, and the distance L3 between the second frame area 4 of the backlight and the display area 1 is not less than 0.23 mm, so that the sensor is also located between the second frame area 4 of the backlight and the display area 1.

The cumulative tolerance of the backlight in the direction perpendicular to the first face during assembly is equal to the square of half the edge length tolerance of the backlight profile in the direction perpendicular to the first face, the square of the positioning tolerance of the second bezel area 4, the square of half the edge length tolerance of the second bezel area 4 in the direction perpendicular to the first face, the square of the device assembly tolerance, the square of the length tolerance of the second edge of the display area 1, and the square of the sum of the squares of the spacing tolerances between the display area 1 and the first face.

The length tolerance of the side of the backlight in the direction perpendicular to the first surface is ± 0.12mm, the positioning tolerance of the second frame area 4 is ± 0.12mm, the length tolerance of the second frame area 4 in the direction perpendicular to the first surface is ± 0.12mm, the assembly tolerance of the device is ± 0.1 mm, in this embodiment, the length tolerance of the second side, the spacing tolerance between the display area 1 and the first surface is small, and is negligible, and for convenience of calculation, the two tolerances are 0.

Substituting the calculation to obtain the accumulated tolerance Ly= v ((0.12/2) 2+0.12 2+ (0.12/2) 2+0.1 2+0+0) =0.178 mm of the backlight source in the direction perpendicular to the first surface in the assembly process.

The cumulative tolerance of the backlight in the direction parallel to the first face during assembly is equal to the square of half the edge length tolerance of the backlight profile in the direction parallel to the first face, the square of the positioning tolerance of the second bezel area 4, the square of half the edge length tolerance of the second bezel area 4 in the direction parallel to the first face, the square of the device assembly tolerance, the square of the length tolerance of the fourth side of the display area 1, and the square of the sum of the squares of the spacing tolerances between the display area 1 and the first face.

The tolerance of the length of the side of the backlight in the direction parallel to the first surface is ± 0.1 mm, the tolerance of the positioning of the second frame area 4 is ± 0.12mm, the tolerance of the length of the side of the second frame area 4 in the direction parallel to the first surface is ± 0.1 mm, the tolerance of the equipment assembly is ± 0.1 mm, in this embodiment, the tolerance of the length of the fourth side, the tolerance of the distance between the display area 1 and the first surface is small, and can be ignored, and the two tolerances are 0 for easy calculation.

Substituting the calculation to obtain the accumulated tolerance Lx= v ((0.1/2) 2+0.12 2+ (0.1/2) 2+0.1 2+0+0) =0.171 mm in the direction parallel to the first surface during the assembly process of the backlight.

In some embodiments of the present application, the difference between the distance between the sensor and the second rim area 4, and the width of the second rim area 4 in the direction perpendicular to the second face is equal to a second preset value; and/or the width of the backlight along the direction perpendicular to the second face is multiplied by the interval between the actual position of the second bezel area 4 and the position of the second bezel area 4 closest to the display area 1, divided by the interval between the extreme position of the backlight close to the display area 1 and the extreme position far from the display area 1, and subtracted by the width of the second bezel area 4 along the direction perpendicular to the second face is equal to a second preset value.

Fig. 2 is a schematic top view of a display panel according to another embodiment of the present application.

In this embodiment, in order to ensure uniformity of the plurality of sensors affected by the backlight light source, reduce the photosensitive error, it is necessary to perform positional restriction of the sensors in a direction parallel to the first face. E is the length of the side length of the backlight in the direction parallel to the first plane, C is the fluctuation range (c=0.178×2=0.356) of the distance between the second border region 4 and the display region 1 in the direction perpendicular to the first plane in consideration of the tolerance of the backlight itself and the assembly tolerance, a is the border dimension of the second border region 4 of the backlight in the direction parallel to the first plane, B is the distance between the overlapping region of the second border region 4 and the sensor and the backlight when the backlight is located at one of the side stroke limits (i.e. the distance between the second border region 4 and the display region 1 is maximized and the distance between the second border region 4 and the display region 1 is minimized), and D is the distance between the overlapping region of the second border region 4 and the sensor and the position of the second border region 4 closest to the display region 1 (d=0.12-0.052=0.068) when the backlight is located at one of the side stroke limits.

Second preset value=b-a=e×d/C-ase:Sub>A.

In this embodiment, when the backlight assembly is not offset in the direction parallel to the first face, i.e. not offset from left to right in the figure, e= 70.232 mm, the distance between the sensor and the display area 1 l2=0.12 mm, and a=1.15 mm.

Substituting the calculation to obtain the minimum value= 70.232 (0.12-0.052)/0.356-1.15= 12.265 mm of the distance between the second face of the sensor and the second edge of the display area 1; when the backlight assembly is offset to the right by 0.171 mm, a= (1.15-0.171) mm, so the minimum value of the spacing between the second face of the sensor and the second side of the display arease:Sub>A 1=b-a=e=d/C-a= 70.232 (0.12-0.052)/0.356- (1.15-0.171) = 12.436 mm.

The calculation is to calculate the minimum value requirement of the space between the left second frame area 4 and the display area 1 according to the limit state that the space between the right second frame area 4 and the display area 1 is the largest and the space between the left second frame area 4 and the display area 1 is the smallest after the backlight source is assembled; when the limit state that the space between the left second frame area 4 and the display area 1 is the largest and the space between the right second frame area 4 and the display area 1 is the smallest occurs, the requirement of the space between the right second frame area 4 and the display area 1 can be calculated by the same method.

The sensor in this embodiment needs to satisfy the distance between the second face of the sensor and the second edge of the display area 1, that is, the distance between the sensor on the left and right sides and the edge of the display area 1 in the figure is above 12.4mm, and the influence of the backlight on the plurality of sensors is the same (all inside the second border area 4 or all outside the second border area 4).

In some embodiments of the present application, the distance between the sensor and the display area 1 is 0.12mm, the first preset value is 0.13 mm, the distance between the second frame area 4 and the display area 1 is 0.23 mm, and the second preset value is 12.4 mm.

In the present embodiment, it is required that the distance between the sensor and the display area 1 in the direction perpendicular to the first face is 0.12mm, the distance between the first frame area 3 of the cover glass and the sensor in the direction perpendicular to the first face is not less than 0.13 mm, the distance between the second frame area 4 of the backlight and the display area 1 in the direction perpendicular to the first face is 0.23 mm, and the distance between the sensor and the edges of the left and right sides of the display area 1 is not less than 12.4 mm. The ink area attached to the rear cover plate glass can be guaranteed not to shade the photosensitive sensor, and the consistency of the plurality of sensors influenced by the backlight light source is guaranteed, so that the photosensitive error is reduced.

Based on the same inventive concept, in a second aspect, an embodiment of the present application provides a display device, including: a display panel as in any one of the embodiments of the first aspect.

By applying the embodiment of the application, at least the following beneficial effects can be realized: according to the embodiment of the application, the sensor is arranged between the first frame area 3 and the display area 1, so that the sensor has the characteristic of small occupied area, and the frame of the display panel is shortened and the cost is reduced under the condition that the display device has an ambient light adjusting function; meanwhile, the position of the sensor in the sensing area 2 needs to meet the dimensional relation, the ink area attached to the rear cover plate glass is guaranteed not to shield the sensor, the sensor can receive external environment light, and a plurality of sensors are affected by backlight light sources and are consistent, so that photosensitive errors are reduced.

Those of skill in the art will appreciate that the various operations, methods, steps in the flow, actions, schemes, and alternatives discussed in the present application may be alternated, altered, combined, or eliminated. Further, other steps, means, or steps in a process having various operations, methods, or procedures discussed in this application may be alternated, altered, rearranged, split, combined, or eliminated. Further, steps, measures, schemes in the prior art with various operations, methods, flows disclosed in the present application may also be alternated, altered, rearranged, decomposed, combined, or deleted.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the flowcharts of the figures may include a plurality of sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily being sequential, but may be performed in turn or alternately with other steps or at least a portion of the other steps or stages.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for a person skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims (10)

1. A display panel, comprising a cover glass and a sensor;

the cover glass comprises a display area, a sensing area surrounding the display area and a first frame area surrounding the sensing area: at least one of the sensors is positioned in the sensing area, and the sensor comprises a first surface and a second surface which are perpendicular to each other;

the side closest to the first surface among the sides parallel to the first surface of the first frame area is the first side, and the distance between the first surface and the first side is not smaller than a first preset value; and/or, the side closest to the second surface in the sides parallel to the second surface of the display area is the second side, and the distance between the second surface and the second side is not smaller than a second preset value.

2. The display panel of claim 1, wherein the display panel comprises at least a plurality of the sensors, the plurality of the sensors being positioned within the sensing region with first faces of different ones of the sensors being coplanar and second faces of different ones of the sensors being parallel to each other.

3. The display panel of claim 1, wherein the sensor comprises a photosensitive thin film transistor.

4. A display panel according to claim 3, wherein the plurality of sensors respectively include a red light-sensitive thin film transistor, a green light-sensitive thin film transistor, a blue light-sensitive thin film transistor, and a white light-sensitive thin film transistor.

5. The display panel of claim 1, wherein the first bezel area includes a third side perpendicular to the first side, a square of a half of a length tolerance of the third side, a square of a device fit tolerance, a square of a length tolerance of the second side, and a square root of a sum of squares of a spacing tolerance between the display area and the first side being equal to the first preset value.

6. The display panel according to claim 5, wherein the display area includes a fourth side perpendicular to the second side, a distance between the fourth side and the first side is not less than a third preset value, and a sum of the first preset value and a distance between the display area and the first frame area is equal to the third preset value.

7. The display panel of claim 1, further comprising a backlight secured to one side of the cover glass, the backlight including a second bezel area, the sensor being located between the display area and an orthographic projection of the second bezel area onto the cover glass.

8. The display panel according to claim 7, wherein a difference between a distance between the sensor and the second bezel area and a width of the second bezel area in a direction perpendicular to the second face is equal to the second preset value; and/or, the width of the backlight along the direction perpendicular to the second face is multiplied by the interval between the actual position of the second frame area and the position of the second frame area closest to the display area, divided by the interval between the limit position of the backlight close to the display area and the limit position far away from the display area, and the width of the second frame area along the direction perpendicular to the second face is subtracted to be equal to the second preset value.

9. The display panel of claim 7, wherein the sensor is spaced from the display area by 0.12mm, the first predetermined value is 0.13 mm, the second bezel area is spaced from the display area by 0.23 mm, and the second predetermined value is 12.4 mm.

10. A display device, comprising: the display panel of any one of claims 1-9.

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