Display panel and electronic device

Abstract

The application provides a display panel and an electronic device. The display panel comprises at least two sub-panels spliced with each other. Each sub-panel comprises a first display area and a second display area arranged at the periphery of the first display area. Each sub-panel further comprises a first substrate and a second substrate arranged oppositely, and a sealant and a liquid crystal layer arranged between the first substrate and the second substrate. The sealant surrounds the liquid crystal layer. A plurality of light emitting devices are arranged on the first substrate or the second substrate corresponding to the second display area. The plurality of light emitting devices can enable the second display area to display a picture, so as to eliminate a splicing gap at the splicing position, and thus, the problem of the splicing gap existing in the existing liquid crystal display splicing screen is relieved.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display panel and electronic device. Background Technology

[0002] Liquid Crystal Display (LCD) screens are currently the mainstream display technology, boasting advantages such as low cost and mature manufacturing processes. Simultaneously, with the development of display technology, LCD screens with irregular shapes and ultra-large-size splicing displays have emerged to suit diverse application scenarios. Existing LCD splicing screens are composed of multiple sub-screens, but because each sub-screen has a bezel, gaps exist at the joints between adjacent sub-screens. Summary of the Invention

[0003] This application provides a display panel and an electronic device to alleviate the technical problem of splicing gaps in existing liquid crystal display splicing screens.

[0004] To solve the above problems, the technical solution provided in this application is as follows:

[0005] This application provides a display panel comprising at least two interconnected sub-panels, each sub-panel comprising a first display area and a second display area disposed around the first display area; each sub-panel further comprising:

[0006] First substrate;

[0007] The second substrate is disposed opposite to the first substrate;

[0008] A liquid crystal layer is located between the first substrate and the second substrate, and the liquid crystal layer is disposed corresponding to the first display area;

[0009] Multiple light-emitting devices are disposed on one of the first substrate and the second substrate, and located within the second display area;

[0010] A sealing adhesive is located between the first substrate and the second substrate, and the sealing adhesive surrounds the liquid crystal layer.

[0011] In the display panel provided in this application embodiment, the pixel density of the first display area is equal to the pixel density of the second display area.

[0012] In the display panel provided in the embodiments of this application, the first display area is provided with a plurality of first pixels, each first pixel including at least three first sub-pixels of different colors; the second display area is provided with a plurality of second pixels, each second pixel including at least three second sub-pixels of different colors, and the interval between two adjacent second sub-pixels in the same second pixel is equal to the interval between two adjacent first sub-pixels in the same first pixel.

[0013] In the display panel provided in this application embodiment, the plurality of light-emitting devices are disposed on the first substrate, and the second substrate has a notch at the position corresponding to the light-emitting device, and the light-emitting device extends from the first substrate into the notch.

[0014] In the display panel provided in this application embodiment, the sealing adhesive is a transparent sealing adhesive, which covers the plurality of light-emitting devices and accommodates them within the notch.

[0015] In the display panel provided in this application embodiment, the transmittance of the sealing adhesive is greater than 60%.

[0016] In the display panel provided in this application embodiment, the sub-board further includes an upper polarizer located on the side of the second substrate away from the first substrate and a lower polarizer located on the side of the first substrate away from the second substrate. The edge of the upper polarizer is flush with the edge of the second substrate, and the edge of the lower polarizer is flush with the edge of the first substrate.

[0017] In the display panel provided in this application embodiment, the light-emitting device has a first electrode and a second electrode; the first substrate includes:

[0018] First substrate;

[0019] A thin-film transistor is disposed on the first substrate and located within the first display area;

[0020] A driving circuit is disposed on the first substrate and located in the second display area. The driving circuit includes a first electrode and a second electrode, which are disposed in the same layer as at least a portion of the metal layer of the thin film transistor.

[0021] The first electrode is electrically connected to the first electrode of the light-emitting device, and the second electrode is electrically connected to the second electrode of the light-emitting device.

[0022] In the display panel provided in the embodiments of this application, the first substrate further includes a color resist layer disposed on the first substrate, and the second substrate further includes a common electrode disposed on the second substrate and located within the first display area.

[0023] This application also provides an electronic device, which includes a housing and a display panel of one of the foregoing embodiments, wherein the housing forms a first receiving cavity and the display panel is assembled in the first receiving cavity.

[0024] The beneficial effects of this application are as follows: The display panel and electronic device provided in this application include at least two interconnected sub-panels. Each sub-panel includes a first display area and a second display area disposed around the first display area. Each sub-panel also includes a first substrate and a second substrate disposed opposite to each other, as well as a sealant and a liquid crystal layer located between the first substrate and the second substrate. The sealant surrounds the liquid crystal layer. Multiple light-emitting devices are disposed on the first substrate or the second substrate corresponding to the second display area. The multiple light-emitting devices enable the second display area to display an image, thereby eliminating the splicing gap at the splicing point and solving the problem of splicing gaps in existing liquid crystal display splicing screens. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments or prior art, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a cross-sectional structural diagram of a display panel provided in an embodiment of this application.

[0027] Figure 2 This is a cross-sectional structural diagram of a sub-plate provided in an embodiment of this application.

[0028] Figure 3 This is a top view of a display panel provided in an embodiment of this application.

[0029] Figure 4 A detailed structural schematic diagram of the first substrate provided in an embodiment of this application.

[0030] Figure 5 This is a schematic diagram of the pixel arrangement structure on the display panel provided in an embodiment of this application.

[0031] Figure 6 This is a top view of another display panel structure provided in an embodiment of this application.

[0032] Figure 7 This is a schematic cross-sectional view of another display panel provided in an embodiment of this application.

[0033] Figure 8This is a cross-sectional structural diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0034] The following descriptions of the embodiments are based on the accompanying illustrations, illustrating specific embodiments in which this application can be implemented. Directional terms used in this application, such as [up], [down], [front], [back], [left], [right], [inner], [outer], [side], etc., are merely for reference to the accompanying drawings. Therefore, the directional terms used are for illustration and understanding of this application, and not for limiting this application. In the figures, structurally similar units are denoted by the same reference numerals. In the figures, the thickness of some layers and regions is exaggerated for clarity and ease of description. That is, the dimensions and thicknesses of each component shown in the figures are arbitrarily shown, but this application is not limited thereto.

[0035] Please refer to Figures 1 to 5 , Figure 1 This is a cross-sectional structural diagram of a display panel provided in an embodiment of this application. Figure 2 This is a schematic cross-sectional view of a sub-plate provided in an embodiment of this application. Figure 3 This is a top view of a display panel provided in an embodiment of this application. Figure 4 This is a schematic diagram showing the detailed structure of the first substrate provided in an embodiment of this application. Figure 5 This is a schematic diagram of the pixel arrangement structure on a display panel provided in an embodiment of this application. The display panel 100 includes at least two interconnected sub-panels, such as... Figure 1 The two sub-boards shown are spliced ​​together as a first sub-board 1-1 and a second sub-board 1-2. Each sub-board includes a first display area AA1 and a second display area AA2 disposed around the first display area AA1, wherein the second display areas AA2 of two adjacent sub-boards abut each other.

[0036] Both the first display area AA1 and the second display area AA2 are used to display images. In the two spliced ​​sub-boards, the second display area AA2 of the first sub-board 1-1 and the second display area AA2 of the second sub-board 1-2 are spliced ​​together, and together with the first display area AA1 of the two spliced ​​sub-boards, they display the image. Because of the presence of the second display area AA2, the splicing area of ​​the two spliced ​​sub-boards can also display an image, eliminating the splicing gap and thus solving the problem of splicing gaps in existing LCD splicing screens.

[0037] The following will explain in detail how to enable the second display area AA2 to display the image:

[0038] Specifically, such as Figure 1As shown, each sub-board further includes a first substrate 10, a second substrate 20 disposed opposite to the first substrate 10, a liquid crystal layer 30 and a sealant 40 located between the first substrate 10 and the second substrate 20, and a plurality of light-emitting devices 50 disposed on the first substrate 10 or the second substrate 20. This embodiment illustrates the example where the plurality of light-emitting devices 50 are disposed on the first substrate 10. The liquid crystal layer 30 is disposed corresponding to the first display area AA1, and the sealant 40 surrounds the liquid crystal layer 30, with at least a portion of the sealant 40 located within the second display area AA2. The plurality of light-emitting devices 50 are positioned opposite to the sealant 40 located within the second display area AA2.

[0039] Optionally, the first substrate 10 is an array substrate and the second substrate 20 is a color filter substrate, but this application is not limited thereto. The first substrate 10 of this application may also be a GOA (Gate Driver on Array) substrate. Each of the sub-boards also includes a backlight module 60 located on the side of the array substrate away from the color filter substrate, the backlight module 60 being used to provide backlight to the sub-board.

[0040] A first control circuit is provided on the first substrate 10. The first control circuit controls the deflection of the liquid crystal molecules of the liquid crystal layer 30. The deflected liquid crystal molecules refract the backlight provided by the backlight module 60 onto the second substrate 20. A color filter is provided on the second substrate 20. The color filter enables the backlight to present different colors after passing through the second substrate 20, thereby realizing the display of the image in the first display area AA1 and thus realizing the color display of the sub-board.

[0041] Specifically, such as Figure 2 As shown, taking the second sub-board 1-2 as an example, the backlight module 60 includes a back plate 61 and a frame 62 fixedly connected to the back plate 61. The back plate 61 and the frame 62 together form a first receiving cavity 611. The backlight module 60 also includes a light source 64 located within the first receiving cavity 611. The light source 64 can be directly-lit or side-lit. This embodiment uses a directly-lit configuration of the light source 64 as an example. To improve the utilization rate of the light emitted by the light source 64, a reflective sheet 63 can be provided on the side of the light source 64 away from the first substrate 10. Optionally, the back plate 61 can be a metal back plate 61, such as sheet metal, to improve the heat dissipation effect of the backlight module 60 and better dissipate the heat generated by the light source 64. Of course, the backlight module 60 also includes an optical film 65 located above the light source 64, and the optical film 65 includes a diffuser, a brightness enhancement film, etc.

[0042] Furthermore, the optical film 65, the reflective sheet 63, and the light source 64 are all fixedly connected to the frame 62, so that the frame 62 supports and fixes the optical film 65, the reflective sheet 63, and the light source 64. Simultaneously, the frame 62 also supports and fixes the first substrate 10 and the second substrate 20. Specifically, the first substrate 10 is fixedly connected to the optical film 65 above the frame 62 using adhesive materials such as foam adhesive 90, so that the first substrate 10 and the second substrate 20 are fixed together with the backlight module 60, thereby allowing the frame 62 of the backlight module 60 to support and fix the first substrate 10 and the second substrate 20.

[0043] It is understandable that, due to the presence of the frame 62 and the foam adhesive 90 in the backlight module 60, and the opaque properties of the frame 62 and the foam adhesive 90, the light emitted by the light source 64 in the backlight module 60 cannot pass through the frame 62 and the foam adhesive 90. As a result, no light passes through the area covered by the frame 62 and the foam adhesive 90, and thus the area covered by the frame 62 and the foam adhesive 90 cannot be used for display. This area is the non-display area NA of the sub-board.

[0044] However, this application provides a plurality of light-emitting devices 50 on the first substrate 10, with each of the plurality of light-emitting devices 50 corresponding to the coverage area of ​​the backlight module 60's frame 62 and the foam adhesive 90. The plurality of light-emitting devices 50 can emit light to enable the coverage area of ​​the frame 62 and the foam adhesive 90 to also be displayed, thereby forming the second display area AA2.

[0045] Combined with reference Figure 2 and Figure 3 The sealing adhesive 40 is positioned in an area corresponding to the coverage area of ​​the adhesive frame 62 and the foam adhesive 90, and the sealing adhesive 40 covers multiple light-emitting devices 50 within the second display area AA2. When two sub-boards are spliced ​​together, the second display areas AA2 of the two sub-boards abut against each other, allowing the area between the first display areas AA1 of the two spliced ​​sub-boards to also be displayed, thus eliminating the splicing gap at the joint.

[0046] Of course, in order to achieve a narrow bezel or borderless display panel 100, the light-emitting device 50 can also be disposed in the entire area covered by the frame 62 and the foam adhesive 90, that is, the light-emitting device 50 can be disposed in the entire area covered by the sealing adhesive 40, and is not limited to being disposed on the splicing side of the sub-board. For example, the light-emitting device 50 can also be disposed on the opposite side of the splicing side of the sub-board and on both sides between the splicing side and the opposite side, so as to eliminate the non-display area NA of the sub-board, thereby enabling the display panel 100 to achieve a narrow bezel or borderless display.

[0047] Optionally, the light-emitting device 50 includes an LED chip, such as a Micro LED chip or a Mini LED chip. The light-emitting device 50 is bonded to the first substrate 10, and the first substrate 10 drives the light-emitting device 50 to emit light. Specifically, a bonding pad is provided on the side of the light-emitting device 50 near the first substrate 10. The bonding pad includes a first electrode 51 and a second electrode 52 that are spaced apart and insulated from each other. The bonding pad of the light-emitting device 50 is soldered to the first substrate 10 using solder paste or other soldering materials to achieve bonding between the light-emitting device 50 and the first substrate 10. The sealing adhesive 40 covers multiple light-emitting devices 50 to protect them and prevent the bonding pads of the light-emitting devices 50 from being corroded, thus eliminating the need for additional encapsulation processes for the light-emitting devices 50. Of course, this application is not limited to this; the encapsulation structure of the light-emitting device 50 in this application can also be set separately and not on the same layer as the sealing adhesive 40.

[0048] Furthermore, the sealing adhesive 40 is a transparent sealing adhesive, comprising small resin molecules (such as acrylic resin and epoxy resin), a UV-curing initiator, a thermosetting initiator, and inorganic fillers. After UV curing, the UV-curing initiator causes some of the small acrylic resin molecules to polymerize, forming acrylic resin polymers, thus essentially sculpting the sealing adhesive 40 and establishing a certain degree of adhesion. Subsequent thermosetting involves a thermosetting process where the thermosetting initiator causes the epoxy resin to polymerize, forming polymers. During the thermosetting process, some unreacted small acrylic resin molecules also polymerize, further strengthening the adhesion of the sealing adhesive 40 and tightly bonding the first substrate 10 and the second substrate 20 together. The resulting sealing adhesive 40 has a high light transmittance, for example, greater than 60%, thereby improving the utilization rate of the light emitted by the light-emitting device 50.

[0049] Furthermore, the gap between the first substrate 10 and the second substrate 20 is very small. To avoid interference between the second substrate 20 and the light-emitting device 50, a notch 21 is provided on the second substrate 20 at the position corresponding to the light-emitting device 50. The light-emitting device 50 extends from the first substrate 10 into the notch 21. The sealing adhesive 40 covers the plurality of light-emitting devices 50 and is housed within the notch 21. Optionally, the notch 21 on the second substrate 20 can be formed by thinning the second substrate 20 through laser cutting, grinding, or chemical etching.

[0050] A second control circuit is also disposed on the first substrate 10. The second control circuit is used to control the light-emitting device 50 to emit light. The second control circuit and the first control circuit are formed under the same process conditions. Specifically, as shown in... Figure 4 As shown, the first substrate 10 includes a first substrate 11, a thin-film transistor 12 disposed on the first substrate 11, and a driving circuit 13. The thin-film transistor 12 is located in the first display area AA1 to serve as the first control circuit; the driving circuit 13 is located in the second display area AA2 and is electrically connected to the light-emitting device 50 to serve as the second control circuit.

[0051] Specifically, the thin-film transistor 12 is disposed on the first substrate 11, which includes a glass substrate or the like. The thin-film transistor 12 includes an active layer 131, a gate 132, a source 133, a drain 134, and a pixel electrode 14. The first substrate 10 also includes a gate insulating layer 111 located between the active layer 131 and the gate 132, an interlayer insulating layer 112 located between the gate 132 and the source 133 and the drain 134, and a passivation layer 113 located between the source 133 and the pixel electrode 14.

[0052] Specifically, the active layer 131 is located on the first substrate 11, and the gate insulating layer 111 covers the active layer 131 and the first substrate 11. The gate 132 is disposed on the gate insulating layer 111 and corresponds to the channel region of the active layer 131. The interlayer insulating layer 112 covers the gate 132 and the gate insulating layer 111. The source 133 and the drain 134 are disposed on the interlayer insulating layer 112, and the source 133 and the drain 134 are respectively connected to both sides of the channel region of the active layer 131. The passivation layer 113 covers the source 133, the drain 134, and the interlayer insulating layer 112. The pixel electrode 14 is disposed on the passivation layer 113. The pixel electrode 14 is a patterned electrode, and the pixel electrode 14 is electrically connected to the drain 134 of the thin-film transistor 12. However, the structure of the thin-film transistor 12 described in this application is not limited to this. For example, the thin-film transistor 12 may also adopt a bottom gate, a double gate, or other structures.

[0053] To control the deflection of the liquid crystal molecules in the liquid crystal layer 30, the display panel 100 further includes a common electrode 15 located on the second substrate 20. The common electrode 15 is located within the first display area AA1 and faces the first substrate 10. Thus, by controlling the driving voltage on the pixel electrode 14 through the thin-film transistor 12, an electric field is formed between the pixel electrode 14 and the common electrode 15, causing the liquid crystal molecules in the liquid crystal layer 30 to deflect, thereby realizing the display of the image in the first display area AA1.

[0054] Furthermore, the driving circuit 13 is also disposed on the first substrate 11 and located in the second display area AA2. The driving circuit 13 includes a first electrode 16 and a second electrode 17. The first electrode 16 is electrically connected to the first electrode 51 of the light-emitting device 50, and the second electrode 17 is electrically connected to the second electrode 52 of the light-emitting device 50. In this way, the driving circuit 13 controls the first electrode 16 to control the light-emitting device 50 to emit light, thereby realizing the display of the image in the second display area AA2.

[0055] Optionally, the first electrode 16 and the second electrode 17 are disposed in the same layer as at least a portion of the metal layer of the thin-film transistor 12, for example, both the first electrode 16 and the second electrode 17 are disposed in the same layer as the pixel electrode 14. Alternatively, the control method of the second control circuit can also employ a control method similar to that of the first control circuit. Specifically, the driving circuit 13 further includes a driving device 121, which has a substantially the same structure as the thin-film transistor 12. One of the first electrode 16 and the second electrode 17 is electrically connected to the driving device 121, which provides a driving signal to either the first electrode 16 or the second electrode 17.

[0056] It should be noted that the common electrode 15 in this application is not limited to being disposed on the second substrate 20. For example, the common electrode 15 can also be disposed on the first substrate 10, but it needs to be insulated from the pixel electrode 14. Furthermore, the common electrode 15 can be disposed on a different layer from the pixel electrode 14, or it can be disposed on the same layer as the pixel electrode 14. In addition, "disposed on the same layer" in this application means that in the fabrication process, at least two different structures are obtained by patterning a film layer formed of the same material, and the at least two different structures are disposed on the same layer. For example, in this embodiment, the first electrode 16 and the pixel electrode 14 are obtained by patterning the same conductive film layer, and therefore the first electrode 16 and the pixel electrode 14 are disposed on the same layer.

[0057] It is understandable that, since the first display area AA1 and the second display area AA2 have different display methods, in order to make the optical quality of the first display area AA1 and the second display area AA2 similar, the pixel density of the first display area AA1 can be made equal to the pixel density of the second display area AA2. Here, pixel density refers to the number of pixels distributed per unit area.

[0058] Furthermore, such as Figure 5 As shown, the first display area AA1 is provided with a plurality of first pixels P1, each first pixel P1 including at least three first sub-pixels SP1 of different colors (the three first sub-pixels SP1 of different colors are R, G, and B). The second display area AA2 is provided with a plurality of second pixels P2, each second pixel P2 including at least three second sub-pixels SP2 of different colors (the three second sub-pixels SP2 of different colors are R, G, and B). The interval between two adjacent second sub-pixels SP2 within the same second pixel P2 is equal to the interval between two adjacent first sub-pixels SP1 within the same first pixel P1, so that the optical quality of the first display area AA1 and the second display area AA2 is similar.

[0059] It should be noted that the size and arrangement of the first sub-pixel SP1 can be characterized by the size and arrangement of the pixel electrode 14, with one pixel electrode 14 corresponding to one first sub-pixel SP1. The size and arrangement of the second sub-pixel SP2 can be characterized by the size and arrangement of the light-emitting devices 50, with one light-emitting device 50 corresponding to one second sub-pixel SP2. The color display of the first pixel P1 can be achieved by the color filter on the second substrate 20, and the color display of the second pixel P2 can be achieved by having the light-emitting devices 50 emit light of different colors. For example, each second pixel P2 may include three light-emitting devices 50, and the three light-emitting devices 50 emit red light, blue light, and green light, respectively.

[0060] In addition, to achieve the display function of the display panel 100, each sub-panel further includes an upper polarizer 70 located on the side of the second substrate 20 away from the first substrate 10 and a lower polarizer 80 located on the side of the first substrate 10 away from the second substrate 20. The edge of the upper polarizer 70 is flush with the edge of the second substrate 20, and the edge of the lower polarizer 80 is flush with the edge of the first substrate 10, so that the upper polarizer 70 and the lower polarizer 80 cover the first display area AA1 and the second display area AA2, thereby giving the first display area AA1 and the second display area AA2 similar optical quality. At the same time, at the splicing point of two sub-panels, the upper polarizer 70 and the lower polarizer 80 on the two sub-panels abut against each other, reducing the visual difference between the two spliced ​​sub-panels.

[0061] In one embodiment, please refer to the reference. Figures 1 to 6 , Figure 6 This is another top view structural diagram of the display panel provided in an embodiment of this application. Unlike the above embodiment, the display panel 101 includes four sub-panels spliced ​​together. The four sub-panels are a first sub-panel 1-1, a second sub-panel 1-2, a third sub-panel 1-3, and a fourth sub-panel 1-4. The first sub-panel 1-1 is spliced ​​with both the second sub-panel 1-2 and the third sub-panel 1-3. The second sub-panel 1-2 is spliced ​​with both the first sub-panel 1-1 and the fourth sub-panel 1-4. The third sub-panel 1-3 is also spliced ​​with the fourth sub-panel 1-4.

[0062] In this embodiment, the sealing adhesive 40 area at the joint of the first sub-board 1-1, the second sub-board 1-2, the third sub-board 1-3, and the fourth sub-board 1-4 is provided with multiple light-emitting devices 50, so that each of the first sub-board 1-1, the second sub-board 1-2, the third sub-board 1-3, and the fourth sub-board 1-4 has two second display areas AA2, thereby eliminating the joint gaps at the joint of the first sub-board 1-1, the second sub-board 1-2, the third sub-board 1-3, and the fourth sub-board 1-4. Other details are as described in the above embodiment and will not be repeated here.

[0063] In one embodiment, please refer to the reference. Figures 1 to 7 , Figure 7 This is a schematic cross-sectional view of another display panel provided in an embodiment of this application. Unlike the embodiments described above, in this display panel 102, a color filter for light filtering is disposed on the first substrate 10, enabling the first substrate 10 to employ COA (Color-filter on Array) technology. Specifically, the first substrate 10 further includes a color filter layer 18, located within the first display area AA1, and the color filter layer 18 includes red, green, and blue color filters. By disposing of the color filter layer 18 on the first substrate 10, it is easier to form the notch 21 on the second substrate 20. Other descriptions are as described in the embodiments above and will not be repeated here.

[0064] Based on the same inventive concept, this application also provides an electronic device, please refer to the following: Figures 1 to 8 , Figure 8 This is a cross-sectional structural diagram of an electronic device provided in an embodiment of this application. The electronic device 1000 includes a housing 200 and a display panel 100 as described in one of the above embodiments. The housing 200 forms a second receiving cavity 201, and the display panel 100 is assembled within the second receiving cavity 201. The electronic device 1000 includes electronic products such as televisions and tablets.

[0065] As can be seen from the above embodiments:

[0066] This application provides a display panel and an electronic device. The display panel includes at least two interconnected sub-panels. Each sub-panel includes a first display area and a second display area disposed around the first display area. Each sub-panel also includes a first substrate and a second substrate disposed opposite to each other, as well as a sealant and a liquid crystal layer located between the first substrate and the second substrate. The sealant surrounds the liquid crystal layer. Multiple light-emitting devices are disposed on the first substrate or the second substrate corresponding to the second display area. These multiple light-emitting devices enable the second display area to display an image, thereby eliminating the splicing gap at the joint and solving the problem of splicing gaps in existing liquid crystal display splicing screens.

[0067] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0068] The embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A display panel, characterized in that, It includes at least two interconnected sub-boards, each sub-board including a first display area and a second display area disposed around the first display area; each sub-board further includes: First substrate; The second substrate is disposed opposite to the first substrate; A liquid crystal layer is located between the first substrate and the second substrate, and the liquid crystal layer is disposed corresponding to the first display area; Multiple light-emitting devices are disposed on a first substrate and located within a second display area. The second substrate has notches corresponding to the positions of the light-emitting devices, and the light-emitting devices extend from the first substrate into the notches. A sealing adhesive is located between the first substrate and the second substrate. The sealing adhesive surrounds the liquid crystal layer and is a transparent sealing adhesive. The transparent sealing adhesive covers the plurality of light-emitting devices and is housed within the notch. Specifically, at the pixel junction between the first display area and the second display area, the sub-pixel color of the first display area is different from the sub-pixel color of the second display area.

2. The display panel according to claim 1, characterized in that, The pixel density of the first display area is equal to the pixel density of the second display area.

3. The display panel according to claim 2, characterized in that, The first display area is provided with a plurality of first pixels, each first pixel including at least three first sub-pixels of different colors; the second display area is provided with a plurality of second pixels, each second pixel including at least three second sub-pixels of different colors, and the interval between two adjacent second sub-pixels in the same second pixel is equal to the interval between two adjacent first sub-pixels in the same first pixel.

4. The display panel according to claim 3, characterized in that, Two sub-boards are spliced ​​together, wherein the color arrangement of the first and second sub-pixels of one sub-board is symmetrical to the color arrangement of the first and second sub-pixels of the other sub-board with the seam between the adjacent sub-boards as the center line.

5. The display panel according to claim 4, characterized in that, The arrangement of the first and second sub-pixels of one of the sub-boards is R / G / B, while the arrangement of the first and second sub-pixels of the other spliced ​​sub-board is B / G / R.

6. The display panel according to claim 1, characterized in that, The transmittance of the sealing adhesive is greater than 60%.

7. The display panel according to claim 1, characterized in that, The sub-board further includes an upper polarizer located on the side of the second substrate away from the first substrate and a lower polarizer located on the side of the first substrate away from the second substrate. The edge of the upper polarizer is flush with the edge of the second substrate, and the edge of the lower polarizer is flush with the edge of the first substrate.

8. The display panel according to claim 1, characterized in that, The light-emitting device has a first electrode and a second electrode; the first substrate includes: First substrate; A thin-film transistor, disposed on the first substrate and located within the first display area; and A driving circuit is disposed on the first substrate and located in the second display area. The driving circuit includes a first electrode and a second electrode, which are disposed in the same layer as at least a portion of the metal layer of the thin film transistor. The first electrode is electrically connected to the first electrode of the light-emitting device, and the second electrode is electrically connected to the second electrode of the light-emitting device.

9. The display panel according to claim 8, characterized in that, The first substrate further includes a color resist layer disposed on the first substrate, and the second substrate further includes a common electrode disposed on the second substrate and located within the first display area.

10. An electronic device, characterized in that, The device includes a housing and a display panel as claimed in any one of claims 1-9, wherein the housing has a first receiving cavity and the display panel is assembled within the first receiving cavity.

Images