CN109817835B - Display module and display device - Google Patents
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- CN109817835B CN109817835B CN201910253150.6A CN201910253150A CN109817835B CN 109817835 B CN109817835 B CN 109817835B CN 201910253150 A CN201910253150 A CN 201910253150A CN 109817835 B CN109817835 B CN 109817835B
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Abstract
The embodiment of the invention discloses a display module and a display device, wherein the display module comprises: the display panel comprises an array substrate, the array substrate comprises a functional device area and an array area, the thickness of the array substrate in the functional device area is a, the thickness of the array substrate in the array area is b, and a is more than or equal to 0 and less than b; a reinforcing plate located at a back side of the display panel; in the direction perpendicular to the plane of the array substrate, the reinforcing plate at least covers the functional device area, and the reinforcing plate is attached to the array substrate at the edge of the functional device area. The invention provides a display module and a display device, and aims to solve the problems that a display panel in a functional device area is low in strength and easy to damage.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display module and a display device.
Background
Currently, Organic Light-Emitting Diode (OLED) display devices are widely used in various electronic products as display components of electronic devices. With the pursuit of the full-screen, the OLED display module is also developed toward the full-screen, for example, the display modules in the forms of "bang", "water drop", etc. are used as transition products, and are developed toward the full-screen.
For the display module of forms such as "bang", "water droplet", need set up a functional device district at the edge of the display area of display module for components and parts such as camera, earphone keep away the position, but the display area of functional device district both sides is less, and intensity is lower, in follow-up reliability test and vibrations drop test, the display area of functional device district both sides is damaged easily and is leaded to display panel inefficacy.
Disclosure of Invention
The embodiment of the invention provides a display module and a display device, and aims to solve the problems that a display panel in a functional device area is low in strength and easy to damage.
In a first aspect, an embodiment of the present invention provides a display module, including:
the display panel comprises an array substrate, the array substrate comprises a functional device area and an array area, the thickness of the array substrate in the functional device area is a, the thickness of the array substrate in the array area is b, and a is more than or equal to 0 and less than b;
a reinforcing plate located at a back side of the display panel; in the direction perpendicular to the plane of the array substrate, the reinforcing plate at least covers the functional device area, and the reinforcing plate is attached to the array substrate at the edge of the functional device area.
Optionally, a is 0; the functional device area is a U-shaped gap area, the U-shaped gap area comprises a U-shaped gap, the U-shaped gap is positioned on one edge of the array substrate, and the array substrate further comprises protruding structure areas positioned on two sides of the U-shaped gap; the reinforcing plate is attached to the array substrate located in the protruding structure area, and the reinforcing plate is overlapped with the protruding structure area in the direction perpendicular to the plane where the array substrate is located.
Optionally, in a direction perpendicular to the plane of the array substrate, the reinforcing plate covers the protruding structure region.
Optionally, the thickness of the display panel in the functional device region is 0.
Optionally, the mechanical strength of the array substrate is less than that of the reinforcing plate.
Optionally, the reinforcing plate covers and extends to each edge of the array substrate, and is completely attached to the array substrate.
Optionally, in a direction perpendicular to the plane of the array substrate, the reinforcing plate is provided with at least one through hole, and the through hole is located in the functional device region.
Optionally, a protruding retaining wall is arranged on one side, close to the array substrate, of the reinforcing plate; the raised retaining wall is positioned in the functional device area; the shape of the protruding retaining wall is adapted to the edge of the functional device area.
Optionally, the protruding retaining wall is attached to the edge of the functional device region.
Optionally, the reinforcing plate includes at least one metal trace; one side of the reinforcing plate, which is far away from the array substrate, is provided with metal contact points which are electrically connected with the metal wires in a one-to-one correspondence manner; a component mounting area is arranged on one side, close to the array substrate, of the reinforcing plate; the component mounting area is provided with metal terminals which are electrically connected with the metal wires in a one-to-one correspondence manner; the component mounting area is located in the functional device area.
Optionally, the component mounting region includes at least one groove structure.
In a second aspect, an embodiment of the present invention further provides a display device, where the display device includes the display module described above.
Optionally, in a direction perpendicular to the plane of the array substrate, the reinforcing plate of the display module includes at least one through hole; the through hole is positioned in the functional device area; the display device further includes: a component; the components are arranged in the corresponding through holes.
Optionally, the reinforcing plate of the display module includes at least one metal wire; one side of the reinforcing plate, which is far away from the array substrate, is provided with metal contact points which are electrically connected with the metal wires in a one-to-one correspondence manner; a component mounting area is arranged on one side, close to the array substrate, of the reinforcing plate; the component mounting area is provided with metal terminals which are electrically connected with the metal wires in a one-to-one correspondence manner; the component mounting area is positioned in the functional device area; the display device further includes: a component; the component is fixed in the component mounting area and is electrically connected with the corresponding metal terminal; the metal contact point is used for being electrically connected with the control main board on one side of the reinforcing plate far away from the array substrate.
The display module comprises a display panel and a reinforcing plate positioned on the back side of the display panel, wherein an array substrate in the display panel comprises a functional device area and an array area, the thickness a of the functional device area is smaller than the thickness b of the array area, so that the functional device area can be provided with components such as a receiver and a camera, the reinforcing plate at least covers the functional device area in the direction perpendicular to the plane of the array substrate, and the reinforcing plate is attached to the array substrate on the edge of the functional device area, so that the reinforcing plate can increase the mechanical strength of the functional device area and the array substrate around the functional device area, protect the array substrate, effectively avoid the situation that the array substrate on the edge of the functional device area is damaged when being impacted, and prevent the failure problem of the display panel in a reliability test.
Drawings
FIG. 1 is a schematic diagram of a prior art display screen;
fig. 2 is a front view of a display module according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of the display module of FIG. 2 taken along line L-L';
FIG. 4 is a front view of another display module according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of the display module of FIG. 4 taken along line L-L';
FIG. 6 is a cross-sectional view of the display module of FIG. 4 taken along line P-P';
FIG. 7 is a front view of another display module according to an embodiment of the present invention;
FIG. 8 is a cross-sectional view of the display module of FIG. 7 taken along line L-L';
FIG. 9 is a cross-sectional view of the display module of FIG. 7 taken along line P-P';
FIG. 10 is a front view of another display module according to an embodiment of the present invention;
FIG. 11 is a front view of another display module according to an embodiment of the present invention;
FIG. 12 is another cross-sectional view of the display module of FIG. 2 taken along line L-L';
FIG. 13 is a front view of another display module according to an embodiment of the present invention;
FIG. 14 is a cross-sectional view of the display module of FIG. 13 taken along line L-L';
FIG. 15 is a front view of another display module according to an embodiment of the present invention;
FIG. 16 is a rear view of the display module of FIG. 15;
FIG. 17 is a cross-sectional view of the display module of FIG. 15 taken along line L-L';
FIG. 18 is another cross-sectional view of the display module of FIG. 15 taken along line L-L';
fig. 19 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the prior art, an OLED display screen is developing towards a full-screen direction, and a transitional display screen such as a "bang" screen is generated, as shown in fig. 1, fig. 1 is a schematic structural diagram of a display screen in the prior art, fig. 1 is a display screen in a "bang" form, the display screen shown in fig. 1 includes a screen body region M and an element avoiding region N, and the element avoiding region N is used for avoiding some components required by the display screen, such as a handset and the like. As shown in fig. 1, screen body regions with smaller areas are formed on two sides of the element avoiding region N, the strength of the screen body region with the smaller area is lower, and the screen body regions with the smaller areas on two sides of the element avoiding region N are easily damaged during subsequent reliability tests and vibration drop tests of the display screen, so that the screen body fails.
In order to solve the problem that a display screen of an element avoidance area N is easily damaged by impact, the embodiment of the invention provides a display module, which comprises:
the display panel comprises an array substrate, the array substrate comprises a functional device area and an array area, the thickness of the array substrate in the functional device area is a, the thickness of the array substrate in the array area is b, and a is more than or equal to 0 and less than b;
the reinforcing plate is positioned on the back side of the display panel; in the direction perpendicular to the plane of the array substrate, the reinforcing plate at least covers the functional device area, and the reinforcing plate is attached to the array substrate at the edge of the functional device area.
The display panel comprises an array substrate, wherein the array substrate is provided with Thin Film Transistors (TFT) which are arranged in an array mode, and the TFT is used for driving corresponding pixel units to emit light. Optionally, the display panel may further include a color film substrate, the color film substrate is disposed on the display side of the array substrate and attached to the array substrate, and a liquid crystal layer is disposed between the color film substrate and the array substrate; or, the display panel may further include an organic light emitting structure layer, where the organic light emitting structure layer is disposed on the display side of the array substrate and includes light emitting units arranged in an array. Optionally, the color filter substrate or the organic light emitting structure layer of the display panel only covers the array region but does not cover the functional device region in a direction perpendicular to the array substrate.
In the embodiment of the invention, the display module comprises a display panel and a reinforcing plate positioned on the back side of the display panel, an array substrate in the display panel comprises a functional device area and an array area, the thickness a of the functional device area is smaller than the thickness b of the array area, so that the functional device area can be provided with components such as a receiver and a camera, the reinforcing plate at least covers the functional device area in the direction vertical to the plane of the array substrate, and the reinforcing plate is attached to the array substrate on the edge of the functional device area, so that the reinforcing plate can increase the mechanical strength of the functional device area and the array substrate around the functional device area, protect the array substrate, effectively avoid the situation that the array substrate on the edge of the functional device area is damaged when being impacted, and prevent the failure problem of the display panel in a reliability test.
The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
Fig. 2 is a front view of a display module according to an embodiment of the present invention, and fig. 3 is a cross-sectional view of the display module in fig. 2 along a line L-L', the display panel includes an array substrate 111, the array substrate 111 includes a functional device region C and an array region D, the functional device region C is used for providing a placement position for some components, for example, for a camera, an earpiece, and other components can be disposed in the functional device region C, the functional device region C does not need to be provided with a TFT array, and the array region D is used for providing a TFT array. In this embodiment, the thickness a of the array substrate 111 in the functional device region C is smaller than the thickness b of the array substrate 111 in the array region D, for example, in a direction away from the reinforcing plate 12, the array substrate 111 in the array region D needs to sequentially dispose a substrate layer, a buffer layer, a Thin Film Transistor (TFT) device layer, a planarization layer, and the like, while the array substrate 111 in the functional device region C may only dispose the substrate layer, even the array substrate 111 in the functional device region C may not dispose any of the above-mentioned structural layers, i.e., a is 0, so that the thickness a of the array substrate 111 in the functional device region C is smaller than the thickness b of the array substrate 111 in the array region D, referring to fig. 4 and 5, fig. 4 is a front view of another display module provided by an embodiment of the present invention, fig. 5 is a cross-sectional view of the display module in fig. 4 along a straight line L-L', the thickness a of the functional device region C is smaller than the thickness b of the array region D, the functional device region C is convenient for accommodating each component, and preferably, the thickness a of the array substrate 111 in the functional device region C is 0, as shown in fig. 3, so that the functional device region C can have more space for accommodating the above components. Furthermore, the thickness of the display panel in the functional device area C can be 0, and the whole display panel is of a hollow structure in the functional device area C, so that the functional device area C can accommodate various components, and the material cost of the display panel is reduced to a certain extent.
Fig. 6 is a cross-sectional view of the display module shown in fig. 4 along a line P-P', referring to fig. 5 and 6, the reinforcing plate 12 is disposed on the back side of the display panel, in a direction perpendicular to the plane of the array substrate 111, the reinforcing plate 12 at least covers the functional device region C, and the reinforcing plate 12 is attached to the array substrate 111 at the edge of the functional device region C, for example, the reinforcing plate 12 may be attached to the array substrate 111 at the edge of the functional device region C by OCA optical cement, and it should be noted that when a is not zero, the reinforcing plate 12 may also be attached to the array substrate 111 of the functional device region C by OCA optical cement. The reinforcing plate 12 is attached to the back side of the display panel and at least covers the functional device region C for reinforcing the mechanical strength of the display panel, and the reinforcing plate 12 is attached to the array substrate 111 at the edge of the functional device region C, as shown in fig. 3 and 5, the thickness a of the functional device region C of the array substrate 111 is smaller than the thickness b of the array region D, so that the mechanical strength of the array region D around the functional device region C is reduced due to the smaller thickness of the functional device region C, even, when the thickness a of the functional device region C of the array substrate 111 is 0, the functional device region C of the array substrate 111 is a hollow region, the area of the array region D at both sides of the functional device region C is smaller, so that the strength of the array substrate 111 at both sides of the functional device region C is too low and is easily damaged, the reinforcing plate 12 can be attached to the array region D at the edge of the functional device region C of the array substrate 111, the reinforcing plate 12 can increase the strength of the partial area of the array substrate 111 protruding from the two sides of the functional device area C, and can prevent the array area D from losing efficacy when performing reliability test and vibration drop test, thereby improving the reliability of the display module and prolonging the service life of the display panel.
In this embodiment, the reinforcing plate 12 may cover the entire array region D in a direction perpendicular to the array substrate 111, as shown in fig. 2 to 6, to reinforce the mechanical strength of the entire array substrate 111, but the reinforcing plate 12 may cover only the functional device region C, as shown in fig. 7, 8 and 9, fig. 7 is a front view of another display module provided in the embodiment of the present invention, fig. 8 is a cross-sectional view of the display module in fig. 7 along a line L-L ', fig. 9 is a cross-sectional view of the display module in fig. 7 along a line P-P', the reinforcing plate 12 covers the functional device region C and is attached to the array substrate 111 around the functional device region C, and the reinforcing plate 12 covers the functional device region C and a partial region of the array substrate 111 around the functional device region C, rather than the entire region of the array substrate 111.
Optionally, with continued reference to fig. 7-9, a is 0; the functional device region C is a "U" -shaped notch region, the "U" -shaped notch region includes a "U" -shaped notch, the "U" -shaped notch is located on one edge of the array substrate 111, and the array substrate 111 further includes protruding structure regions T located on both sides of the "U" -shaped notch; the reinforcing plate 12 is attached to the array substrate 111 in the protruding structure region T, and in a direction perpendicular to the plane of the array substrate 111, the reinforcing plate 12 overlaps the protruding structure region T. As shown in fig. 7, the thickness a of the functional device region C is 0, and the reinforcing plate 12 covers the U-shaped notch region and partially overlaps the protruding structure regions T on both sides of the U-shaped notch region, so that the reinforcing plate 12 can effectively enhance the mechanical strength of the protruding structure regions T and the edges of the U-shaped notch region adjacent to each other, and protect the protruding structure regions T of the array substrate 111.
Referring to fig. 10, fig. 10 is a front view of another display module according to an embodiment of the present invention, and a cross-sectional view of the display module shown in fig. 10 along a line L-L' is shown in fig. 8, and optionally, the reinforcing plate 12 may cover the protrusion structure region T in a direction perpendicular to a plane of the array substrate 111. Compared with the display module shown in fig. 7, the reinforcing plate 12 of the display module shown in fig. 10 completely covers the protruding structural region T in the direction perpendicular to the array substrate 111, and the reinforcing plate 12 can effectively enhance the mechanical strength of the entire protruding structural region T, and further enhance the protection of the protruding structural region T of the array substrate 111.
Optionally, with continued reference to fig. 2, the reinforcing plate 12 covers and extends to each edge of the array substrate 111, and is completely attached to the array substrate 111. The reinforcing plate 12 of the display module shown in fig. 2 can cover the array region D and the functional device region C completely, i.e., the reinforcing plate 12 covers the functional device region C and extends to cover the edges of the array substrate 111. Compared with the display module shown in fig. 7 and 10, the display module shown in fig. 2 has the advantages that the reinforcing plate 12 is attached to the whole back side of the array substrate 111, the mechanical strength of the array substrate 111 can be further increased, the whole array substrate 111 can be protected, and the service life of the display panel can be further prolonged.
Alternatively, the mechanical strength of the array substrate 111 may be less than that of the reinforcing plate 12. In order to enhance the mechanical strength of the array substrate 111, the mechanical strength of the reinforcing plate 12 may be controlled to be greater than that of the array substrate 111, so as to enhance the strength of the array substrate 111 and thus the entire display panel, and optionally, the material of the reinforcing plate 12 may be stainless steel, aluminum alloy or a non-metal composite material, so that the material hardness of the reinforcing plate 12 is higher than that of the array substrate 111.
Alternatively, referring to fig. 11, fig. 11 is a front view of another display module according to an embodiment of the present invention, the functional device region C may be a "U" shaped notch region, and may also be a water drop shaped notch region, where the water drop shaped notch region further improves the screen display rate of the display panel relative to the bang shaped notch region shown in fig. 10. In addition, the functional device region C may be a rectangular notch region, a trapezoidal notch region, a circular notch region, or other notch regions, and the notch shape of the notch region is not limited in this embodiment.
Alternatively, referring to fig. 2, the reinforcing plate 12 is provided with at least one through hole 121 in a direction perpendicular to the plane of the array substrate 111, and the through hole 121 is located in the functional device region C. The through hole 121 penetrating through the reinforced plate 12 can accommodate components such as a camera, on one hand, the through hole 121 is used for fixing the position of the components, and on the other hand, the components can penetrate through the through hole 121 to be electrically connected with a control main board arranged on one side of the reinforced plate 12 far away from the array substrate 111, so that the components can work under the control of the control main board. In general, the through hole 121 is disposed perpendicular to the array substrate 111, and has a diameter just large enough to accommodate components such as a camera and a headphone.
Note that, in fig. 2, the thickness a of the functional device region C of the array substrate 111 is zero, and only the through hole 121 needs to be provided on the reinforcing plate 12, so that components such as a camera and a headphone can be accommodated in the through hole 121, and the camera or the headphone can be exposed on the display side of the display panel.
When the thickness a of the functional device area C of the array substrate 111 is greater than zero, a through hole may be disposed at a position on the array substrate 111 corresponding to the through hole 121, that is, the through hole 121 penetrates through the reinforcing plate 12 and the array substrate 111, so that the device can be conveniently exposed to the display side, optionally, when the through hole is etched in the array substrate 111 of the functional device area C, the etching surface of the array substrate 111 is the side facing the reinforcing plate 12, thereby preventing the TFT device of the array substrate 111 from being damaged in the etching process; of course, the whole display panel may also adopt a blind hole form, that is, the through hole 121 only penetrates through the reinforcing plate 12 and does not extend to the array substrate 111, as shown in fig. 5, the substrate layer of the array substrate 111 in the functional device region C may adopt a transparent material, for example, rigid glass, and a camera arranged in the through hole 121 may perform a shooting operation through the array substrate 111, which is simpler in process and higher in yield compared with the case of arranging the through hole on the array substrate 111. Moreover, when the array substrate 111 is in the form of a blind hole, it is also convenient to package the display panel along the regular edge of the display panel, as shown in fig. 4, according to the rounded rectangular edge of the display panel, so as to save the packaging process.
Fig. 12 is another cross-sectional view of the display module of fig. 2 along the line L-L', and alternatively, referring to fig. 2 and 12, a side of the reinforcing plate 12 adjacent to the array substrate 111 may be provided with a raised retaining wall 122; the raised retaining wall 122 is located in the functional device region C; the shape of the raised wall 122 is adapted to the edge of the functional device region C.
Referring to fig. 12, the reinforcing plate 12 is provided with a raised retaining wall 122 at a portion covering the functional device region C, the raised retaining wall 122 is disposed at a side close to the array substrate 111 and is accommodated in a space formed by the functional device region C of the array substrate 111 to further enhance the mechanical strength of the array substrate 111 around the functional device region C, optionally, the height of the raised retaining wall 122 is the same as the thickness of the array substrate 111, as shown in fig. 12, the shape of the raised retaining wall 122 is disposed according to the edge of the functional device region C, so that the raised retaining wall 122 can be close to each edge of the functional device region C to enhance the mechanical strength of the array substrate 111 next to the functional device region C.
For example, as shown in fig. 2 and 12, the vertical projection of the protruding retaining wall 122 on the array substrate 111 completely coincides with the functional device region C, so as to effectively increase the mechanical strength of the array substrate 111 around the functional device region C, and when the display panel is attached to the reinforcing plate 12, the protruding retaining wall 122 can be used as a registration mark, so as to achieve fast registration between the display panel and the reinforcing plate 12, and speed up the attachment process between the display panel and the reinforcing plate 12.
In another example, a raised wall 122 is attached to the edge of the functional device region C, as shown in fig. 13 and 14, fig. 13 is a front view of another display module provided in an embodiment of the present invention, fig. 14 is a cross-sectional view of the display module in fig. 13 along a line L-L', the raised wall 122 may be a strip attached to the edge of the functional device region C, and the strip-shaped raised wall 122 can enhance the mechanical strength of the array substrate 111 around the functional device region C and facilitate rapid alignment between the display panel and the reinforced plate 12. In addition, the adjusted protruding retaining wall 122 can save the setting material of the protruding retaining wall 122, and the manufacturing cost of the display module is reduced.
Fig. 15 is a front view of another display module according to an embodiment of the invention, fig. 16 is a rear view of the display module shown in fig. 15, and optionally, the reinforcing plate 12 may include at least one metal trace 123; one side of the reinforcing plate 12, which is far away from the array substrate 111, is provided with metal contact points 125 which are electrically connected with the metal traces 123 in a one-to-one correspondence manner; a component mounting area 126 is arranged on one side, close to the array substrate 111, of the reinforcing plate 12; the component mounting area 126 is provided with metal terminals 124 which are electrically connected with the metal traces 123 in a one-to-one correspondence manner; the component mounting section 126 is located in the functional device section C.
In this embodiment, the reinforcing plate 12 may not have a through hole, at least one metal trace 123 running through the reinforcing plate 12 is directly disposed on the reinforcing plate 12, one side of the reinforcing plate 12 away from the array substrate 111 is provided with a metal contact point 125 electrically connected with the metal trace 123 in a one-to-one correspondence, the metal contact point 125 may be electrically connected with a control main board located on one side of the reinforcing plate 12 away from the array substrate 111, one side of the reinforcing plate 12 close to the array substrate 111 is provided with a metal terminal 124 electrically connected with the metal trace 123 in a one-to-one correspondence, the metal terminal 124 is located in a functional device area C of the array substrate 111, and a part of the area in the functional device area C can be selected as a device placement area 126, and the metal terminal. The component mounting area 126 is used for mounting components, the components can be in a component mounting mode, and can be fixed to the component mounting area 126 by means of adhesive materials such as glue, preferably, the components can be fixed to the position of the metal terminal 124, the components are electrically connected with the control mainboard through the metal terminal 124, the metal wiring 123 and the metal contact point 125, and through holes do not need to be formed in the reinforcing plate 12 to electrically connect the components and the control mainboard. The position precision that components and parts were beaten can reach higher level to can make the distance between each components and parts reduce, in order to save components and parts occupation space, and, metal is walked line 123 and is set up in the inside of strengthening the version 12, has saved the occupation space of connecting wire between components and parts and the control mainboard, can reduce the area size in function device district C, improves the screen and accounts for the ratio.
As shown in fig. 16, the metal traces 123 extending from the inside of the enhanced plate 12 to the side of the enhanced plate 12 away from the array substrate 111 may extend different traces on the surface of the side of the enhanced plate 12, so as to better place the metal contacts 125, and facilitate the corresponding electrical connection between the metal contacts 125 and the contacts on the control motherboard.
Fig. 17 is a cross-sectional view of the display module of fig. 15 taken along line L-L ', and fig. 18 is another cross-sectional view of the display module of fig. 15 taken along line L-L', and optionally, the component mounting section 126 includes at least one recess feature 127. All having certain height for components and parts, if directly fixing components and parts on the one side that is close to array substrate 111 with reinforcing plate 12, then increasing whole display module's thickness easily, in order to reduce whole display module's thickness, reinforcing plate 12 is close to including at least one groove structure 127 in the components and parts arrangement area 126 of one side of array substrate 111, and groove structure 127 is used for holding each components and parts. For example, a groove structure 127 may be disposed in the component mounting region 126, and all the metal terminals 124 and the components to be mounted are disposed in the groove structure 127; alternatively, the same number of recess structures 127 may be disposed in the component mounting region 126, with each component and the corresponding metal terminal 124 being located in the corresponding recess structure 127.
In addition, the heights of different types of components are different, the groove structures 127 of the reinforcing plate 12 can be set to corresponding depths according to the heights of different components, referring to fig. 17 and 18, if the heights of the components are smaller, the groove structures 127 can be directly etched on the side, close to the array substrate 111, of the reinforcing plate 12, if the heights of the components are larger, the protruding structures 128 can be firstly formed on the side, far away from the array substrate 111, of the reinforcing plate 12, and the groove structures 127 are etched on the side, close to the array substrate 111, of the reinforcing plate 12 at positions corresponding to the protruding structures 128. The display module that this embodiment provided can adapt to the components and parts of different models, has strengthened the compatibility of different components and parts.
Optionally, the display panel further includes at least one of a support layer, an electromagnetic shielding layer, a buffer layer, and a heat dissipation layer disposed between the array substrate 111 and the reinforcing plate 12. The support layer is used for providing a supporting function for the array substrate 111; the electromagnetic shielding layer is used for realizing electromagnetic shielding between the TFT circuit on the array substrate 111 and the display device control main board and preventing the work of the TFT circuit from being interfered; the buffer layer is used for effectively dispersing impact force applied to the display panel; the heat dissipation layer is used for guiding out heat generated by light emission of the display panel. In the direction perpendicular to the array substrate 111, the supporting layer, the electromagnetic shielding layer, the buffer layer and the heat dissipation layer only cover the array region D, but not the functional device region C, so that components in the functional device region C are electrically connected with a main control board of the display device.
The embodiment of the invention also provides a display device. Fig. 19 is a schematic structural diagram of a display device according to an embodiment of the present invention, and as shown in fig. 19, a display device 2 according to an embodiment of the present invention includes the display module 1 according to any embodiment of the present invention. The display device may be a mobile phone as shown in fig. 19, or may be a computer, a television, an intelligent wearable device, and the like, which is not particularly limited in this embodiment.
The display device provided by the embodiment of the invention comprises a display panel and a reinforcing plate positioned on the back side of the display panel, wherein an array substrate in the display panel comprises a functional device area and an array area, the thickness a of the functional device area is smaller than the thickness b of the array area, so that the functional device area can be provided with components such as a receiver and a camera, the reinforcing plate at least covers the functional device area in the direction vertical to the plane of the array substrate, and the reinforcing plate is attached to the array substrate on the edge of the functional device area, so that the reinforcing plate can increase the mechanical strength of the functional device area and the array substrate around the functional device area, protect the array substrate, effectively avoid the situation that the array substrate on the edge of the functional device area is damaged when being impacted, and prevent the failure problem of the display panel in a reliability test.
On the basis of the above embodiments, with reference to fig. 2 and 19, in the direction perpendicular to the plane of the array substrate, the reinforcing plate of the display module may include at least one through hole; the through hole is positioned in the functional device area; the display device 2 further includes: a component 21; the components 21 are disposed in the corresponding through holes. The component 21 may be a camera, a receiver, etc., and the component 21 may be electrically connected to a control main board (not shown in fig. 19) located inside the display device 2 and located on a side of the reinforcing plate away from the display panel, so that the component 21 may operate under the control of the control main board.
Optionally, with continued reference to fig. 15, 16 and 19, the reinforcing plate 12 of the display module 1 includes at least one metal trace 123; one side of the reinforcing plate 12, which is far away from the array substrate 111, is provided with metal contact points 125 which are electrically connected with the metal traces 123 in a one-to-one correspondence manner; a component mounting area 126 is arranged on one side, close to the array substrate 111, of the reinforcing plate 12; the component mounting area 126 is provided with metal terminals 124 which are electrically connected with the metal traces 123 in a one-to-one correspondence manner; the component mounting region 126 is located in the functional device region C; the display device 2 further includes: a component 21; the component 21 is fixed on the component mounting area 126 and electrically connected with the corresponding metal terminal 124; the metal contact 125 is used to electrically connect with the control motherboard on the side of the stiffener 12 away from the array substrate 111. Component 21 can be the form of forging to it settles district 126 to be fixed in component with viscidity materials such as glue, then need not set up the through-hole to strengthening version 12, can set up metal wiring 123 in the inside of strengthening version 12, has saved the occupation space of connecting wire between component 21 and the control mainboard, and reduces the area size in functional device district C, improves display device's screen and accounts for the ratio.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (12)
1. A display module, comprising:
the display panel comprises an array substrate, the array substrate comprises a functional device area and an array area, the thickness of the array substrate in the functional device area is a, the thickness of the array substrate in the array area is b, and a is more than or equal to 0 and less than b;
a＝0；
the functional device area is a U-shaped gap area, the U-shaped gap area comprises a U-shaped gap, the U-shaped gap is positioned on one edge of the array substrate, and the array substrate further comprises protruding structure areas positioned on two sides of the U-shaped gap;
a reinforcing plate located at a back side of the display panel;
the reinforcing plate is attached to the array substrate located in the protruding structure area, and the reinforcing plate is overlapped with the protruding structure area in the direction perpendicular to the plane of the array substrate;
in the direction perpendicular to the plane of the array substrate, the reinforcing plate at least covers the functional device area, and the reinforcing plate is attached to the array substrate at the edge of the functional device area.
2. The display module of claim 1, wherein the stiffener covers the protruding feature in a direction perpendicular to a plane of the array substrate.
3. The display module of claim 1, wherein the mechanical strength of the array substrate is less than the mechanical strength of the stiffener.
4. The display module of claim 1,
the reinforcing plate covers and extends to each edge of the array substrate and is completely attached to the array substrate.
5. The display module according to claim 1, wherein the stiffener is provided with at least one through hole in a direction perpendicular to a plane of the array substrate, and the through hole is located in the functional device region.
6. The display module according to any one of claims 1 to 5, wherein a side of the reinforcing plate adjacent to the array substrate is provided with a raised retaining wall;
the raised retaining wall is positioned in the functional device area;
the shape of the protruding retaining wall is adapted to the edge of the functional device area.
7. The display module as claimed in claim 6, wherein the protruding retaining wall is attached to the edge of the functional device region.
8. The display module of claim 1, wherein the stiffener comprises at least one metal trace;
one side of the reinforcing plate, which is far away from the array substrate, is provided with metal contact points which are electrically connected with the metal wires in a one-to-one correspondence manner;
a component mounting area is arranged on one side, close to the array substrate, of the reinforcing plate;
the component mounting area is provided with metal terminals which are electrically connected with the metal wires in a one-to-one correspondence manner;
the component mounting area is located in the functional device area.
9. The display module of claim 8,
the component mounting section includes at least one groove structure.
10. A display device, comprising the display module according to any one of claims 1 to 9.
11. The display device according to claim 10, wherein the reinforcing plate of the display module comprises at least one through hole in a direction perpendicular to a plane of the array substrate; the through hole is positioned in the functional device area;
the display device further includes: a component;
the components are arranged in the corresponding through holes.
12. The display device according to claim 10, wherein the reinforcing plate of the display module comprises at least one metal trace;
one side of the reinforcing plate, which is far away from the array substrate, is provided with metal contact points which are electrically connected with the metal wires in a one-to-one correspondence manner;
a component mounting area is arranged on one side, close to the array substrate, of the reinforcing plate;
the component mounting area is provided with metal terminals which are electrically connected with the metal wires in a one-to-one correspondence manner;
the component mounting area is positioned in the functional device area;
the display device further includes: a component;
the component is fixed in the component mounting area and is electrically connected with the corresponding metal terminal;
the metal contact point is used for being electrically connected with the control main board on one side of the reinforcing plate far away from the array substrate.
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| CN110518141A (en) * | 2019-08-15 | 2019-11-29 | 云谷（固安）科技有限公司 | A kind of display panel and preparation method thereof |
| CN111429807A (en) * | 2020-05-12 | 2020-07-17 | 京东方科技集团股份有限公司 | Display module and display device |
| CN113126378A (en) * | 2021-04-16 | 2021-07-16 | 合肥京东方光电科技有限公司 | Liquid crystal display module and display device |
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