Display panel and display device

Abstract

The embodiment of the utility model provides a display panel, a preparation method thereof and a display device. The display panel comprises a display area and a first frame area and further comprises a preset camera shooting area located in the first frame area, the display panel comprises a first substrate, a second substrate and frame sealing glue, the first substrate and the second substrate are oppositely arranged, the frame sealing glue is located between the first substrate and the second substrate, the frame sealing glue surrounds the display area, and the first frame area is located on the outer side of the frame sealing glue; the first substrate is at least provided with a first opening penetrating through the first substrate in the preset camera shooting area, and the first opening is located in the first frame area; the second substrate comprises a second substrate and a second film layer structure located on the side, facing the first substrate, of the second substrate, the orthographic projection of the preset camera shooting area on the second substrate is located in the second substrate, and the second film layer structure is provided with a first via hole corresponding to the preset camera shooting area so that camera shooting light can pass through the first via hole. The display panel is beneficial to debugging of the camera, the cost is reduced, and the quality of shot pictures is improved.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a display panel and a manufacturing method thereof, and a display device. Background Art

[0002] With the development of technology, notebook computer (NB) products are developing in the direction of being thin, light, narrow-framed and integrated. In the prior art, the functional parts of NB products such as cameras, ambient light sensors, infrared indicators, etc. are integrated into the display module frame, making the upper frame of NB products appear wide, bloated and unsightly. High-end NB products are gradually integrating functional parts from the module frame to the upper frame of the display panel, using a large display panel and small backlight structure, which greatly simplifies the upper frame of the product (width ~ 5mm). Figure 1 is a plan view of a display panel, such as Figure 1 As shown, the display panel may include a display area AA and a first frame area VA1 located on one side of the display area AA. The first frame area VA1 may be located on the upper side of the display area AA, so the first frame area VA1 may also be called an upper frame. The upper frame is provided with a plurality of functional holes for use by functional parts such as cameras, infrared sensors, etc.

[0003] In related technologies, such as Figure 1 When the display panel shown has a camera function, it is not conducive to the debugging of the camera, or it leads to increased difficulty and cost of the display panel process. Utility Model Content

[0004] Embodiments of the present disclosure provide a display panel and a method for manufacturing the same, and a display device to solve or alleviate one or more technical problems in the prior art.

[0005] As a first aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a display panel, including a display area and a first frame area located on one side of the display area, and also including a preset camera area located in the first frame area, the display panel includes a first substrate and a second substrate arranged opposite to each other, and a frame sealant located between the first substrate and the second substrate, the frame sealant surrounds the display area, and the first frame area is located outside the frame sealant;

[0006] The first substrate is provided with a first opening penetrating the first substrate at least in the preset imaging area, and the first opening is located in the first frame area;

[0007] The second substrate includes a second substrate and a second film layer structure located on the side of the second substrate facing the first substrate. The orthographic projection of the preset camera area on the second substrate is located within the second substrate. The second film layer structure is provided with a first via hole corresponding to the preset camera area for the camera light to pass through.

[0008] In some embodiments, the first substrate includes a first border portion located in the first border area, the first substrate includes a first edge located in the first border area, the first edge is located between the first opening and the frame sealing glue, and the portion of the first substrate located between the first edge and the frame sealing glue forms the first border portion.

[0009] In some embodiments, the first substrate includes a first substrate and a first film layer structure located on the side of the first substrate facing the second substrate. The first substrate is provided with a second opening at least in a preset imaging area, and the orthographic projection of the first opening on the first substrate is located in the second opening.

[0010] In some embodiments, the first substrate includes a first boundary located in the first frame area, the first boundary is located between the second opening and the frame sealant, and the orthographic projection of the second opening on the first substrate is located outside the first boundary.

[0011] In some embodiments, the second film layer structure is also provided with a second via hole located in the first border area, and the second substrate also includes a light filter layer located on the side of the second substrate facing the second film layer structure and used to filter non-infrared light. The light filter layer is located in the first border area, and the orthographic projection of the second via hole on the second substrate is located within the orthographic projection of the light filter layer on the second substrate.

[0012] In some embodiments, the second film layer structure includes a light shielding layer and a color filter layer located in the display area, the light filtering layer includes at least a first sub-film layer, and the first sub-film layer is arranged in the same layer as at least one color filter in the color filter layer.

[0013] In some embodiments, the light filtering layer further includes a second sub-film layer stacked with the first sub-film layer, one of the first sub-film layer and the second sub-film layer is arranged in the same layer as the red color filter, and the other is arranged in the same layer as the blue color filter.

[0014] In some embodiments, the second film layer structure is further provided with a third via hole located in the first border area, and the second substrate further includes a light-blocking film located on the side of the second substrate facing the second film layer structure and located in the third via hole, and the light-blocking film has multiple hollows.

[0015] As a second aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a method for preparing a display panel, wherein the display panel includes a display area and a first frame area located on one side of the display area, and further includes a preset camera area located in the first frame area, and the display panel includes a first substrate and a second substrate arranged opposite to each other. The method is used to prepare the display panel in the embodiment of the present disclosure, and the method includes:

[0016] preparing a first motherboard and a second motherboard, wherein the first motherboard includes a plurality of first substrates and the second motherboard includes a plurality of second substrates;

[0017] The first motherboard and the second motherboard are arranged opposite to each other, so that the first substrate and the second substrate are opposite to each other, and a sealing glue surrounding the display area is arranged between the first motherboard and the second motherboard;

[0018] The first motherboard and the second motherboard are cut by a cutting process to obtain a display panel, wherein the structural material located in the preset imaging area of ​​the first substrate is removed in the cutting process to form a first opening.

[0019] In some embodiments, the first motherboard and the second motherboard are cut by a cutting process to obtain a display panel, including:

[0020] The first motherboard and the second motherboard are cut by a cutting process to obtain a primary display panel, wherein the primary display panel includes a second substrate original plate and a first substrate original plate;

[0021] At least the structural material located in the preset imaging area of ​​the first substrate original plate is removed to form a first opening, thereby obtaining the first substrate and obtaining the display panel.

[0022] In some embodiments, the first substrate includes a first edge located in the first border area, and the first edge is located between the first opening and the frame sealant, wherein at least removing the film layer material located in the preset camera area in the original plate of the first substrate includes:

[0023] A portion of the first substrate original plate that is outside the first edge is removed, and the first opening is located outside the first edge.

[0024] In some embodiments, the process of preparing the first substrate includes:

[0025] Depositing a first metal film on one side of the first substrate and forming a first metal layer by a patterning process, wherein the first metal layer includes a gate of a thin film transistor;

[0026] Forming a gate insulating layer on a side of the first metal layer away from the first substrate by a deposition process;

[0027] An active layer, a source electrode and a drain electrode of a thin film transistor are formed on a side of the gate insulating layer away from the first substrate.

[0028] As a third aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a display device, including the display panel in the embodiments of the present disclosure, and also including a liquid crystal located in the frame sealing glue. The display device also includes a backlight module, and the backlight module is located on the side of the first substrate away from the second substrate. The display device also includes a camera module, and the camera module is located on the side of the second substrate facing the first substrate and is located in a preset camera area.

[0029] In the display panel of the disclosed embodiment, the first substrate is provided with a first opening at least in a preset camera area, and the first opening passes through the first substrate, that is, the first substrate has no material at the first opening position, so that the camera light on the side of the second substrate away from the first substrate can enter the camera module through the first via hole and the second opening to achieve camera shooting. Since the first substrate has no material at the first opening position, it is not necessary to set liquid crystal at the first opening position between the first substrate and the second substrate, which will not cause the bowl-warping state in the related technology, will not interfere with the camera, and avoid the impact on the camera debugging; in addition, the first substrate has no material at the first opening position, and it is no longer necessary to set transparent glue at the first opening position between the first substrate and the second substrate, which eliminates the need for additional glue coating equipment, saves labor time, and reduces costs; further, since the first substrate has no material at the first opening position, the first insulating layer and the second insulating layer no longer exist at the first opening position, The influence of the first insulating layer and the second insulating layer on the transmittance of light in the 380nm~1000nm band is avoided, and the transmittance volatility of the insulating layer to light in the 380nm~1000nm band is eliminated, which can not only further improve the transmittance of light and ensure that the light transmittance reaches more than 85%, but also make the transmittance curve of light in the 380nm~1000nm band passing through the first via hole and the first opening smoother, avoid crosstalk when the camera module receives the color, which is beneficial to the camera module to restore the real color, and can achieve more realistic display quality during shooting, thereby improving the quality of the captured picture.

[0030] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present disclosure will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments according to the present disclosure and should not be regarded as limiting the scope of the present disclosure.

[0032] Figure 1 is a plan view schematic diagram of a display panel;

[0033] Figure 2 for Figure 1 BB cross-sectional diagram in the related art;

[0034] Figure 3 for Figure 1 A schematic diagram of a BB cross section in another related art;

[0035] Figure 4 for Figure 3 A schematic diagram of the transmittance curve of light in the wavelength range of 380nm to 1000nm when there is an insulating layer in the first functional hole of the structure shown;

[0036] Figure 5 is a schematic cross-sectional view of a display panel in an embodiment of the present disclosure;

[0037] Figure 6 for Figure 5 A schematic plan view of the first substrate 10;

[0038] Figure 7 is a cross-sectional schematic diagram of a display panel in another embodiment of the present disclosure;

[0039] Figure 8 for Figure 7 A schematic plan view of the first substrate 10;

[0040] Fig. 9 for Figure 2 , Figure 3 , Figure 5 or Figure 7 Schematic diagram of the comparison of light transmittance curves of the three structures in the 380nm~1000nm band;

[0041] Fig.10 is another cross-sectional schematic diagram of a display panel according to an embodiment of the present disclosure;

[0042] Fig.11 is a schematic diagram of the first motherboard and the second motherboard after being joined;

[0043] Fig.12 A schematic diagram of a display panel obtained from an initial display panel.

[0044] Description of reference numerals:

[0045] 10. first substrate; 11. first underlay; 12. first film layer structure;

[0046] 20. second substrate; 21. second underlay; 22. second film layer structure; 221. light shielding layer; 222. color filter layer;

[0047] 41. First polarizer; 42. Second polarizer; 43. Backlight module; 44. Flexible circuit board; 45. Camera module. DETAILED DESCRIPTION

[0048] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure, and different embodiments may be combined arbitrarily without conflict. Therefore, the drawings and descriptions are considered to be illustrative in nature and not restrictive.

[0049] like Figure 1 As shown, the first border area VA1 of the display panel may be provided with a first function hole 31, a second function hole 32, a third function hole 33 and a fourth function hole. The first function hole 31 may be used for a camera, the second function hole 32 may be used for an infrared sensor, the third function hole 33 may be used for an indicator light, and the fourth function hole may be used for an ambient light sensor.

[0050] Figure 2 for Figure 1 BB cross-sectional diagram in the related art, Figure 3 for Figure 1 A schematic diagram of a BB cross section in another related art. Figure 2 and Figure 3 As shown, the display device includes a display panel, and the display panel may include a first substrate 10 and a second substrate 20, and the first substrate 10 and the second substrate 20 are arranged opposite to each other. The first substrate 10 includes a first substrate 11 and a first film layer structure 12 located on the side of the first substrate 11 facing the second substrate 20. The second substrate 20 includes a second substrate 21 and a second film layer structure 22 located on the side of the second substrate 21 facing the first substrate 10. The first substrate 11 and the second substrate 21 may be transparent substrates, for example, the first substrate 11 and the second substrate 21 may both be glass substrates.

[0051] refer to Figure 2 and Figure 3 , the second film layer structure 22 may be provided with a first via GK1 in the first frame area VA1, and the first via GK1 penetrates the second film layer structure 22. The first film layer structure 12 may be provided with a fifth via GK5 in the first frame area VA1, and the fifth via GK5 may penetrate the first film layer structure 12. The orthographic projection of the first via GK1 on the second substrate 21 may be located within the orthographic projection of the fifth via GK5 on the second substrate 21. The first functional hole 31 includes the first via GK1 and the fifth via GK5. The camera may be located on the side of the first substrate 11 away from the second substrate 20, and the camera may receive the light for video recording through the first functional hole 31.

[0052] The display panel includes a liquid crystal region and a frame sealant surrounding the liquid crystal region. Figure 2In the related art, the display area AA is located in the liquid crystal area, and the liquid crystal is not only filled in the display area AA, but also in the first frame area VA1, so that the first function hole 31 is filled with liquid crystal. The liquid crystal is filled in the first function hole 31 area and serves as a supporting medium in the first function hole 31 area. Since the first function hole 31 requires a higher transparency, the support column cannot be set in the first function hole 31 area, but the support column will be set around the first function hole 31. The support column is a hard support, which causes the gap (gap) between the two substrates to appear in a bowl-warping state that decreases successively from the periphery of the first function hole 31 to the center of the first function hole 31. This gap change causes the liquid crystal to interfere with the camera, which is not conducive to the debugging of the camera.

[0053] In order to facilitate the debugging of the camera, another related technology, such as Figure 3 As shown, the liquid crystal is only arranged in the display area AA, and the frame sealant is arranged around the display area AA, so that the liquid crystal is no longer arranged in the first frame area VA1. Figure 3 In the related art, transparent glue is set as a support in the first frame area VA1. In view of the requirements of functional parts for light transmittance, the properties of transparent glue and frame sealant are different, and transparent glue cannot be applied at the same time as frame sealant. Therefore, an additional glue coating device is required to apply transparent glue, which makes the process of display panel more difficult, increases working time and cost.

[0054] Figure 4 for Figure 3 A schematic diagram of the transmittance curve of the light in the 380nm-1000nm band when the first functional hole in the structure shown has an insulating layer, wherein in the structure corresponding to curve 1, the first functional hole 31 has no insulating layer, that is, the first insulating layer and the second insulating layer are provided with a fifth via GK5 at the position of the first functional hole 31; in the structure corresponding to curve 2, the first insulating layer and the second insulating layer are provided at the position of the first functional hole 31. In order to achieve a good camera function of the camera, it is usually required that the transmittance of the first functional hole 31 to the light in the 380nm-1000nm band reaches more than 85%, and the transmittance curve of the light in the 380nm-1000nm band is smooth, so as to avoid crosstalk of the colors received by the camera and achieve a more realistic display quality. However, in the related art, the first film layer structure 12 in the first substrate 10 includes the first insulating layer and the second insulating layer. In order to achieve the display function, the first insulating layer and the second insulating layer only need to be provided on the entire surface of the first substrate 11. That is to say, the first insulating layer and the second insulating layer are provided at the position of the first functional hole 31. Although the first insulating layer and the second insulating layer are transparent film layers, the first insulating layer and the second insulating layer will cause the transmittance of the first functional hole 31 to the light in the 380nm-1000nm band to present a wave shape, such as Figure 5In order to make the transmittance curve of the light in the 380nm-1000nm band passing through the first functional hole 31 smoother, Figure 4 In the state of the middle curve 1, an additional mask needs to be added to form a fifth via hole GK5 located at the position of the first functional hole 31 on the first insulating layer and the second insulating layer to remove the first insulating layer and the second insulating layer at the position of the first functional hole 31. However, to open the fifth via hole GK5 in the first insulating layer and the second insulating layer, an additional mask needs to be added, and at least one exposure, development, and etching process flow needs to be added, which leads to a total number of masks for the first substrate 10, resulting in an increase in product cost.

[0055] In order to solve some problems in the related art, an embodiment of the present disclosure provides a display panel.

[0056] Figure 5 is a cross-sectional schematic diagram of a display panel in an embodiment of the present disclosure, Figure 5 The display panel shown can be Figure 1 BB cross-section diagram in Figure 6 for Figure 5 FIG. 1 is a plan view of the first substrate 10. Figure 1 , Figure 5 and Figure 6 As shown, the display device includes a display panel, and the display panel includes a display area AA and a first frame area VA1 located on one side of the display area AA. The display panel also includes a preset camera area located in the first frame area VA1. The display panel includes a first substrate 10 and a second substrate 20 that are arranged opposite to each other, and also includes a frame sealant located between the first substrate 10 and the second substrate 20, and the frame sealant can be arranged around the display area AA.

[0057] The first border area VA1 is located outside the frame sealing adhesive.

[0058] like Figure 5 and Figure 6 As shown, the first substrate 10 is provided with a first opening KK1 at least in the preset camera area. The first opening KK1 passes through the first substrate 10 and is located in the first frame area VA1.

[0059] The second substrate 20 includes a second substrate 21 and a second film structure 22, and the second film structure 22 is located on the side of the second substrate 21 facing the first substrate 10. The orthographic projection of the preset imaging area on the second substrate 21 is located in the second substrate 21. The second film structure 22 is provided with a first via GK1, which penetrates the second film structure 22, corresponds to the preset imaging area, and allows imaging light to pass through the first via GK1.

[0060] Typically, a camera module 45, such as a camera, can be disposed on a side of the first substrate 10 facing away from the second substrate 20, and camera light can enter the camera module 45 through the first via GK1 and the first opening KK1. The first functional hole 31 may include the first via GK1 and the first opening KK1.

[0061] The display panel may further include liquid crystal located in the display area AA and filled between the first substrate 10 and the second substrate 20 . The display panel may be a liquid crystal display panel.

[0062] In the display panel of the disclosed embodiment, the first substrate 10 is provided with a first opening KK1 at least in a preset camera area, and the first opening KK1 runs through the first substrate 10, that is, the first substrate 10 has no material at the position of the first opening KK1, so that the camera light on the side of the second substrate 20 away from the first substrate 10 can enter the camera module 45 through the first via GK1 and the second opening to achieve camera shooting. Since the first substrate 10 has no material at the position of the first opening KK1, it is not necessary to set liquid crystal at the position of the first opening KK1 between the first substrate 10 and the second substrate 20, which will not cause the bowl-warped state in the related art, will not interfere with the camera, and avoid the influence on the camera debugging; in addition, the first substrate 10 has no material at the position of the first opening KK1, and it is no longer necessary to set transparent glue at the position of the first opening KK1 between the first substrate 10 and the second substrate 20, which saves additional glue coating equipment, saves labor time, and reduces costs; further, since the first substrate 10 has no material at the position of the first opening KK1, there is no longer a liquid crystal at the position of the first opening KK1 between the first substrate 10 and the second substrate 20. An insulating layer and a second insulating layer avoid the influence of the first insulating layer and the second insulating layer on the transmittance of light in the 380nm~1000nm band, and eliminate the transmittance volatility of the insulating layer to the light in the 380nm~1000nm band, which can not only further improve the transmittance of light and ensure that the light transmittance reaches more than 85%, but also make the transmittance curve of the light in the 380nm~1000nm band passing through the first via GK1 and the first opening KK1 smoother, avoiding crosstalk when the camera module 45 receives the color, which is beneficial to the camera module 45 to restore the real color, and can achieve a more realistic display quality during shooting, thereby improving the quality of the shot picture.

[0063] In one embodiment, the orthographic projection of the first via GK1 on the second substrate 21 may be located within the orthographic projection of the first opening KK1 on the second substrate 21. Thus, the light passing through the first via GK1 may completely pass through the first opening KK1, avoiding the blocking of the light passing through the first via GK1 due to the first opening KK1 being too small, which is beneficial to increase the amount of light received by the camera module 45 and ensure the shooting brightness.

[0064] Exemplarily, the orthographic projection of the preset camera area on the second substrate 21 can be located within the orthographic projection of the first opening KK1 on the second substrate 21, so as to avoid the first opening KK1 being too small to block the preset camera area, thereby ensuring that the light receiving part of the camera module 45 receives more light.

[0065] Exemplarily, the preset camera area may be an area corresponding to the light collecting part of the camera module 45 .

[0066] like Figure 5 and Figure 6 As shown, the first substrate 10 may include a first frame portion 101 located in the first frame area VA1, and the first substrate 10 includes a first edge located in the first frame area VA1, and the first edge is located on the side of the first opening KK1 away from the frame sealant. The portion of the first substrate 10 located between the first edge and the frame sealant forms the first frame portion 101. In such a structure, the first opening KK1 is opened in the first frame portion 101, that is, the material at the position of the first opening KK1 in the first frame portion 101 is removed to form the first opening KK1.

[0067] Figure 7 is a cross-sectional schematic diagram of a display panel in another embodiment of the present disclosure, Figure 7 The display panel shown can be Figure 1 BB cross-section diagram in Figure 8 for Figure 7 In another embodiment, as shown in FIG. Figure 7 and Figure 8 As shown, the first substrate 10 includes a first frame portion 101 located in the first frame area VA1. The first substrate 10 includes a first edge located in the first frame area VA1, and the first edge can be located between the first opening KK1 and the frame sealant. The portion of the first substrate 10 located between the first edge and the frame sealant forms the first frame portion 101. In such a structure, the first opening KK1 is located outside the first frame portion 101.

[0068] exist Figure 7 and Figure 8 In the embodiment, the first edge is located between the first opening KK1 and the sealing glue, and the first opening KK1 is located outside the first frame portion 101, so that the side of the first edge facing the first opening KK1 is free of the first substrate 10 material, and the first opening KK1 is located in a larger strip area TK without material. During the preparation process of the first substrate 10, the portion outside the first edge can be completely removed, which not only forms the first opening KK1, but also forms a strip area TK without material, and the first opening KK1 is located in the strip area TK without material. Such a structure expands the installable space of functional parts such as the camera module 45, improves the flexibility of the design of the camera module 45, and can select a camera with a larger focal length to improve the camera performance.

[0069] During the preparation of the first substrate 10 , a film layer structure of the first substrate 10 may be formed on the first motherboard substrate. After the film layers are prepared, the portion outside the first edge may be cut off to form a material-free strip region TK and a first opening KK1 .

[0070] In the embodiment of the present disclosure, the material of the first substrate 10 at the position of the first opening KK1 is removed, and even the material of the first substrate 10 outside the first edge is removed, which can reduce the overall weight of the display panel and is conducive to achieving lightweight products.

[0071] In one embodiment, Figure 5 As shown, the first substrate 10 includes a first substrate 11 and a first film layer structure 12 located on the side of the first substrate 11 facing the second substrate 20. The first substrate 11 is provided with a second opening at least in the preset camera area, and the orthographic projection of the first opening KK1 on the first substrate 11 is located in the second opening. In such a structure, before the first film layer structure 12 is formed on the first substrate 11, the second opening is opened on the first substrate 11, so that when the first film layer structure 12 is formed on the first substrate 11, there is no first film layer structure 12 at the position of the second opening, thereby forming the first substrate 10. If the second opening is smaller than the first opening KK1 or coincides with the first opening KK1, when the first film layer structure 12 is formed, the first film layer structure 12 may form a covering film layer at the edge of the second opening, and the covering film layer will reduce the size of the second opening, resulting in the failure to obtain the first opening KK1 of the preset size. The orthographic projection of the first opening KK1 on the first substrate 11 is set to be located within the second opening, that is, the size of the second opening is larger than the size of the first opening KK1. Therefore, when the first film layer structure 12 is formed, even if the first film layer structure 12 forms a covering film layer at the edge of the second opening, the size of the first opening KK1 will not be reduced.

[0072] In another embodiment, Figure 7 As shown, the first substrate 11 includes a first boundary located in the first border area VA1, and the first boundary is located between the second opening and the frame sealant. The orthographic projection of the second opening on the first substrate 11 is located outside the first boundary. The first border portion 101 includes a portion of the first substrate 11 located between the first boundary and the frame sealant. It should be noted that the "orthographic projection of the second opening on the first substrate 11" here can be understood as the orthographic projection of the second opening on the plane where the first substrate 11 is located.

[0073] In such a structure, before forming the first film layer structure 12 on the first substrate 11, the portion outside the first boundary of the first substrate 11 is cut off, so that when the first film layer structure 12 is formed on the first substrate 11, the first film layer structure 12 will not be formed outside the first boundary.

[0074] Fig. 9 for Figure 2 , Figure 3 , Figure 5 or Figure 7 Schematic diagram of the comparison of the light transmittance curves of the three structures in the 380nm~1000nm band. Fig. 9 Curve 3 in corresponds to Figure 2 Structure, curve 4 corresponds to Figure 3 The structure shown, curve 5 corresponds to the embodiment of the present disclosure Figure 5 or Figure 7 By comparing the three curves, we can see that Figure 2 Structure and Figure 3 The transmittance curve of the structure for light in the 380nm~1000nm band has many wavy segments. The transmittance curve of the display panel structure of the embodiment of the present disclosure for light in the 380nm~1000nm band is smoother, which is more conducive to the camera's restoration of real colors and can achieve more realistic image quality when shooting.

[0075] Fig.10 is another cross-sectional schematic diagram of a display panel according to an embodiment of the present disclosure, Fig.10 Can be Figure 1 In one embodiment, as shown in FIG. Figure 1 and Fig.10 As shown, the second film layer structure 22 is also provided with a second via GK2 located in the first frame area VA1. The second substrate 20 also includes a light filter layer located on the side of the second substrate 21 facing the second film layer structure 22, and the light filter layer is used to filter non-infrared light. The light filter layer is located in the first frame area VA1, and the orthographic projection of the second via GK2 on the second substrate 21 is located within the orthographic projection of the light filter layer on the second substrate 21. The second functional hole 32 may include a second via GK2, and the second via GK2 can allow infrared light to pass through, and the second via GK2 can correspond to the infrared sensor. The infrared sensor can be arranged on the side of the second substrate 20 facing the first substrate 10, so that the infrared sensor can receive infrared light through the second via GK2. By arranging a light filter layer for filtering non-infrared light at the position of the second via GK2, non-infrared light can be prevented from entering the infrared sensor through the second via GK2, thereby improving the detection accuracy of the infrared sensor.

[0076] For example, Fig.10As shown, the second film layer structure 22 includes a light shielding layer 221 and a color filter layer 222 located in the display area AA. The color filter layer 222 may include a first color filter (e.g., a red color filter), a second color filter (e.g., a green color filter), and a third color filter (e.g., a blue color filter). The light filter layer includes at least a first sub-film layer 231, and the first sub-film layer 231 may be arranged in the same layer as at least one color filter in the color filter layer 222. The color filter may block non-infrared light, for example, the red color filter may block green light and blue light, the green color filter may block red light and blue light, and the blue color filter may block red light and green light. Arranging the first sub-film layer 231 in the same layer as at least one color filter in the color filter layer 222 not only realizes the function of the light filter layer, but also avoids adding an additional film layer. The first sub-film layer 231 may be formed while forming the color filter, thereby simplifying the manufacturing process of the second substrate 20.

[0077] In another embodiment, the light filter layer may further include a second sub-film layer 232, and the second sub-film layer 232 is stacked with the first sub-film layer 231. The first sub-film layer 231 is arranged in the same layer with one color filter in the color filter layer 222, and the second sub-film layer 232 is arranged in the same layer with another color filter in the color filter layer 222. For example, one of the first sub-film layer 231 and the second sub-film layer 232 is arranged in the same layer with the red color filter, and the other is arranged in the same layer with the blue color filter. Thus, the light filter layer can filter out more non-infrared light, further improving the detection accuracy of the infrared sensor.

[0078] The light filtering layer is set to include a first sub-film layer 231 and / or a second sub-film layer 232, and the first sub-film layer 231 is set in the same layer with at least one color film, and the second sub-film layer 232 is set in the same layer with another color film, which can reduce the transmittance of the second via hole GK2. Therefore, when the user uses the display device normally, the position of the second via hole GK2 appears opaque, achieving an integrated black effect of the second via hole GK2 position and other positions of the first border area VA1, which can improve the appearance experience of the display device.

[0079] like Fig.10As shown, the second film layer structure 22 is also provided with a third via GK3 located in the first border area VA1, and the second substrate 20 also includes a light-blocking film located on the side of the second substrate 21 facing the second film layer structure 22 and located at the third via GK3, and the light-blocking film is provided with a plurality of hollows. The third functional hole 33 may include a third via GK3, and the third via GK3 may be used for the indicator light, and the light emitted by the indicator light may pass through the third via GK3. By providing a light-blocking film in the third via GK3, part of the light may be blocked to prevent the light emitted by the indicator light from being too strong and affecting the user. Setting the light-blocking film to a hollow structure can not only enable the user to view the indicator light, but also reduce the brightness of the indicator light seen by the user, thereby improving the user experience. By way of example, the indicator light may be a power indicator light, such as an LED indicator light.

[0080] For example, Fig.10 As shown, the second substrate 20 may further include a protective layer located in the first border area VA1, and the protective layer may be located on the side of the light shielding layer 221, the light filter layer and the light blocking film away from the second substrate 21. The protective layer may protect the film layer in the first border area VA1 and may also improve the mechanical strength of the first border area VA1.

[0081] like Figure 7 As shown, the color filter layer 222 in the second substrate 20 is located in the display area AA, and the color filter layer 222 may include a first color color filter (e.g., a red color filter), a second color color filter (e.g., a green color filter), and a third color color filter (e.g., a blue color filter), and each color corresponds to each sub-pixel one by one.

[0082] like Figure 7 As shown, the display device may further include a camera assembly such as a camera, which may be located in the strip area without material and corresponds to the first via GK1, and the camera may receive light through the first via GK1 to achieve a camera function. The display device may further include a backlight module 43, which may be located on the side of the first substrate 10 away from the second substrate 20. The display device may further include a first polarizer 41 and a second polarizer 42, wherein the first polarizer 41 is located between the backlight module 43 and the first substrate 10, and the second polarizer 42 is located on the side of the second substrate 20 away from the first substrate 10.

[0083] like Figure 7 As shown, the first substrate 10 further includes a second frame portion located on a side of the display area AA away from the first frame area VA1 and protruding from the second substrate 20. The display device may further include a flexible circuit board 44, which is bound and connected to the binding area of ​​the second frame portion of the first substrate 10, and the other end of the flexible circuit board 44 is bent to the back side of the backlight module 43.

[0084] The embodiment of the present disclosure also provides a method for preparing a display panel. The display panel includes a display area AA and a first frame area VA1 located on one side of the display area AA, and also includes a preset camera area located in the first frame area VA1. The display panel includes a first substrate 10 and a second substrate 20 arranged opposite to each other. The method for preparing the display panel can be used to prepare the display panel of the embodiment of the present disclosure.

[0085] The preparation method of the display panel may include: preparing a first motherboard and a second motherboard, the first motherboard includes a plurality of first substrates 10, and the second motherboard includes a plurality of second substrates 20; arranging the first motherboard and the second motherboard relative to each other so that the first substrate 10 and the second substrate 20 are relative to each other, and a sealing glue surrounding the display area AA is arranged between the first motherboard and the second motherboard; cutting the first motherboard and the second motherboard by a cutting process to obtain a display panel, wherein in the cutting process, the structural material located in the preset camera area in the first substrate 10 is removed to form a first opening KK1.

[0086] Conventional techniques in the art may be used to form the first film layer structure 12 on the substrate of the first motherboard according to the features of the first film layer structure 12 in the first substrate 10. For example, the first film layer structure 12 may include a thin film transistor, a first insulating layer, a second insulating layer, and the like.

[0087] Conventional techniques in the art can be used to form a second film layer structure 22 on the substrate of the second motherboard according to the characteristics of the second film layer structure 22 in the second substrate 20. The second film layer structure 22 can be provided with first via holes GK1, second via holes GK2, third via holes GK3, etc. A light filter layer can be provided at the position of the second via hole GK2; and a light blocking film can be provided at the position of the third via hole GK3.

[0088] After the first motherboard and the second motherboard are prepared, a sealant is applied to the periphery of the display area AA of the first motherboard; the second motherboard is aligned with the first motherboard, and the second motherboard and the first motherboard are bonded by the sealant. Liquid crystal can be injected into the space defined by the sealant between the first motherboard and the second motherboard.

[0089] Fig.11 FIG. 1 is a schematic diagram of the first motherboard and the second motherboard after being joined. Fig.11 As shown, after the first motherboard and the second motherboard are combined, multiple display panels are formed. In actual production, a cutting process is required to cut the first motherboard and the second motherboard to obtain a single display panel. Fig.11 It can be seen that the display panel Fig.11 The horizontal direction includes four edges, namely 10a, 10b, 20a and 20b, wherein the edge 10a and the edge 10b are two boundaries of the first substrate 10 in the horizontal direction, and the edges 20a and 20b are two boundaries of the second substrate 20 in the horizontal direction.

[0090] The first motherboard and the second motherboard can be cut by a cutting process, and after cutting, edges 10a, 10b, 20a and 20b can be obtained, thereby obtaining a single display panel. In the cutting process, the structural material in the preset imaging area of ​​the first substrate 10 is removed to form the first opening KK1.

[0091] In one embodiment, a cutting process is used to cut the first motherboard and the second motherboard to obtain a display panel, which may include: cutting the first motherboard to obtain edges 10a, 10b and a first opening KK1, wherein the first opening KK1 is located outside the edge 10a; and cutting the second motherboard to obtain edges 20a and 20b, thereby obtaining a single display panel.

[0092] In another embodiment, the first motherboard and the second motherboard are cut by a cutting process to obtain a display panel, which may include: cutting the first motherboard and the second motherboard by a cutting process to obtain an initial display panel, the initial display panel including a second substrate original plate and a first substrate original plate; at least removing the structural material located in a preset camera area in the first substrate original plate to form a first opening KK1, to obtain a first substrate 10, so as to obtain a display panel.

[0093] For example, in Figure 5 In the embodiment, the right edge 10a of the first substrate 10 is flush with the right edge 20a of the second substrate 20, so the first substrate 10 can be obtained by removing the structural material located in the preset imaging area of ​​the first substrate original plate in the cutting process to form the first opening KK1. The second substrate original plate 20' is cut again using the edge 20b as the cutting line to obtain the second substrate 20, and then the display panel can be obtained.

[0094] In another embodiment, the first substrate 10 includes a first edge located in the first border area VA1, and the first edge is located between the first opening KK1 and the frame sealing glue, wherein at least the film layer material in the first substrate original plate located in the preset camera area is removed, including: removing a portion of the first substrate original plate located outside the first edge, and the first opening KK1 is located outside the first edge.

[0095] Fig.12 is a schematic diagram of obtaining a display panel from a primary display panel. In another embodiment, Figure 7 and Fig.11 As shown, edge 10b is located on the left side of edge 20b, and edge 20a is located on the right side of edge 10a. Edge 10b and edge 20a can be used as cutting lines to cut the first motherboard and the second motherboard once to obtain Fig.12The initial version of the display panel shown includes a first substrate original plate 10' and a second substrate original plate 20'; the second substrate original plate 20' is cut again using the edge 20b as a cutting line to obtain the second substrate 20; the first substrate original plate 10' is cut again using the edge 10a as a cutting line to remove the portion of the first substrate original plate 10' outside the first edge 10a to obtain the first substrate 10, and then the display panel is obtained. The first opening KK1 is located on the right side of the first edge 10a. Since the material on the right side of the first edge 10a is removed, the first opening KK1 is located in the material-free strip area on the right side of the first edge.

[0096] In one embodiment, the first film layer structure 12 of the first substrate 10 may include a thin film transistor, and the thin film transistor may be a bottom-gate thin film transistor. The process of preparing the first substrate 10 may include: depositing a first metal film on one side of the first substrate 11, and forming a first metal layer by a patterning process, the first metal layer including a gate of the thin film transistor; forming a gate insulating layer by a deposition process on the side of the first metal layer away from the first substrate 11; forming an active layer, a source electrode and a drain electrode of the thin film transistor on the side of the gate insulating layer away from the first substrate 11. It may also include forming a passivation layer on the side of the thin film transistor away from the first substrate 11. The gate insulating layer may be called a first insulating layer, and the passivation layer may be called a second insulating layer.

[0097] In an exemplary embodiment, the first insulating layer and the second insulating layer may be made of any one or more of silicon oxide (SiOx), silicon nitride (SiNx) and silicon oxynitride (SiON), and may be a single layer, a multi-layer or a composite layer.

[0098] The embodiment of the present disclosure also provides a display device. The display device includes a display panel of any one of the present disclosures, and also includes a liquid crystal located in the frame sealant, such as Figure 5 or Figure 7 The display device further includes a backlight module 43, which is located on the side of the first substrate 10 away from the second substrate 20. The display device further includes a camera module 45, which is located on the side of the second substrate 20 facing the first substrate 10 and located in a preset camera area.

[0099] The display device may be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, or the like.

[0100] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0101] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0102] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0103] In the present disclosure, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being “above”, “above”, and “above” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0104] The disclosure above provides many different embodiments or examples to implement different structures of the present disclosure. In order to simplify the present disclosure, the components and settings of specific examples are described above. Of course, they are only examples, and the purpose is not to limit the present disclosure. In addition, the present disclosure can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed.

[0105] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of various changes or replacements within the technical scope disclosed in the present disclosure. Different parts in different embodiments can be combined with each other without conflict, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A display panel, characterized in that: The display panel comprises a display area and a first frame area located on one side of the display area, and also comprises a preset camera area located in the first frame area, wherein the display panel comprises a first substrate and a second substrate arranged opposite to each other, and a frame sealant located between the first substrate and the second substrate, the frame sealant surrounds the display area, and the first frame area is located outside the frame sealant; The first substrate is provided with a first opening penetrating through the first substrate at least in the preset camera area, and the first opening is located in the first frame area; The second substrate includes a second substrate and a second film layer structure located on the side of the second substrate facing the first substrate, the orthographic projection of the preset camera area on the second substrate is located within the second substrate, and the second film layer structure is provided with a first via hole corresponding to the preset camera area for the camera light to pass through.

2. The display panel according to claim 1, characterized in that: The first substrate includes a first frame portion located in the first frame area, the first substrate includes a first edge located in the first frame area, the first edge is located between the first opening and the frame sealing glue, and the portion of the first substrate located between the first edge and the frame sealing glue forms the first frame portion.

3. The display panel according to claim 1, characterized in that: The first substrate includes a first substrate and a first film layer structure located on the side of the first substrate facing the second substrate. The first substrate is provided with a second opening at least in the preset imaging area, and the orthographic projection of the first opening on the first substrate is located in the second opening.

4. The display panel according to claim 3, characterized in that: The first substrate includes a first boundary located in the first frame area, the first boundary is located between the second opening and the frame sealant, and the orthographic projection of the second opening on the first substrate is located outside the first boundary.

5. The display panel according to any one of claims 1 to 4, characterized in that: The second film layer structure is also provided with a second via hole located in the first border area, and the second substrate also includes a light filter layer located on the side of the second substrate facing the second film layer structure and used to filter non-infrared light. The light filter layer is located in the first border area, and the orthographic projection of the second via hole on the second substrate is located within the orthographic projection of the light filter layer on the second substrate.

6. The display panel according to claim 5, characterized in that: The second film layer structure includes a light shielding layer and a color filter layer located in the display area, and the light filtering layer includes at least a first sub-film layer, and the first sub-film layer is arranged in the same layer as at least one color filter in the color filter layer.

7. The display panel according to claim 6, characterized in that: The light filtering layer also includes a second sub-film layer stacked with the first sub-film layer, one of the first sub-film layer and the second sub-film layer is arranged in the same layer as the red color filter, and the other is arranged in the same layer as the blue color filter.

8. The display panel according to any one of claims 1 to 4, characterized in that: The second film layer structure is also provided with a third via hole located in the first border area, and the second substrate further includes a light-blocking film located on the side of the second substrate facing the second film layer structure and located in the third via hole, and the light-blocking film has a plurality of hollows.

9. A display device, characterized in that: The display panel comprises the display panel described in any one of claims 1 to 8, and further comprises a liquid crystal located in the frame sealing glue, the display device further comprises a backlight module, the backlight module is located on the side of the first substrate facing away from the second substrate, the display device further comprises a camera module, the camera module is located on the side of the second substrate facing the first substrate and is located in the preset camera area.

Images