CN212460249U - Display module and display device - Google Patents
Display module and display device Download PDFInfo
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- CN212460249U CN212460249U CN202020960570.6U CN202020960570U CN212460249U CN 212460249 U CN212460249 U CN 212460249U CN 202020960570 U CN202020960570 U CN 202020960570U CN 212460249 U CN212460249 U CN 212460249U
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Abstract
The utility model discloses a display module assembly and display device relates to and shows technical field for realize the seamless demonstration of concatenation screen. The display module comprises a display back plate, a plurality of light-emitting elements, a flexible circuit board and a driving circuit board. The display back plate is provided with a display area, a binding area and a splicing area, wherein the binding area and the splicing area are respectively positioned on different sides of the display area. The plurality of light emitting elements are arranged on the display panel and located in the splicing area. One end of the flexible circuit board is bound at the binding area of the display backboard and is coupled with the plurality of light-emitting elements through the circuit layer on the display backboard. The driving circuit board is connected with the other end of the flexible circuit board and used for driving the plurality of light-emitting elements to emit light. The utility model provides a display module assembly is through setting up a plurality of light emitting component in the splice area that shows the backplate to through its luminous demonstration of drive circuit board drive, make the display device who splices into by two at least display module assemblies can realize not having the piece and show.
Description
Technical Field
The utility model relates to a show technical field, especially relate to a display module assembly and display device.
Background
The spliced screen is composed of at least two display units spliced with each other, so that the display of a larger picture can be realized, and the market demand can be better met. However, in the process of splicing at least two display units of the spliced screen, due to the existence of the frame of each display unit, an obvious splice seam exists between two adjacent display units. Due to the existence of the seams, the display effect of the image is greatly influenced, and the use experience of a user is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a display module assembly and display device for realize having no seam and show.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model discloses a first aspect provides a display module assembly, this display module assembly including showing backplate, a plurality of light emitting component, flexible circuit board and driver circuit board. The display back plate is provided with a display area, a binding area and a splicing area, wherein the binding area and the splicing area are respectively positioned on different sides of the display area. The plurality of light emitting elements are arranged on the display back plate and located in the splicing area. One end of the flexible circuit board is bound at the binding area of the display backboard and is coupled with the plurality of light-emitting elements through the circuit layer on the display backboard. The driving circuit board is connected with the other end of the flexible circuit board and is used for driving the plurality of light-emitting elements to emit light.
Optionally, the display module further includes a color film substrate disposed on the same side of the display backplane as the plurality of light emitting elements, an orthographic projection of the color film substrate on the display backplane at least covers the display area, and the orthographic projection of the color film substrate on the display backplane and the orthographic projection of the plurality of light emitting elements on the display backplane are not overlapped with each other.
Optionally, the side surface of the color film substrate close to the plurality of light emitting elements is gradually away from the plurality of light emitting elements from the end close to the display backplane to the end away from the display backplane.
Optionally, the splicing region includes a color film covering region close to the display region and a light emitting element mounting region far from the display region; the color film coverage area is connected with the light-emitting element mounting area; the color film substrate covers the part of the display back panel positioned in the color film covering area, and the color film substrate does not cover the part of the display back panel positioned in the light-emitting element mounting area;
optionally, the size of the color film coverage area along the first direction ranges from 0.2mm to 0.4 mm; and/or the size of the light-emitting element mounting area along the first direction ranges from 0.2mm to 0.4 mm. The first direction is parallel to the display back plate and perpendicular to the interface between the display area and the splicing area.
Optionally, the display module is a liquid crystal display module; the display module further comprises a liquid crystal layer, an upper polarizer, a lower polarizer, a backlight source and a light blocking part. The liquid crystal layer is packaged between the display back plate and the color film substrate. The upper polaroid is positioned on one side of the color film substrate, which deviates from the display back plate. The lower polarizer is positioned on one side of the display backboard, which is far away from the color film substrate. The backlight source is positioned at one side of the lower polarizer, which is far away from the display back plate. The light blocking part at least covers the connecting part between the display back plate and the backlight source.
Optionally, the binding region comprises a gate binding region and a data binding region; the splicing regions include a first splicing region located on an opposite side of the gate bonding region, and a second splicing region located on an opposite side of the data bonding region. The flexible circuit board comprises a first flexible circuit board and a second flexible circuit board; the driving circuit board comprises a first driving circuit board and a second driving circuit board. Among the light-emitting elements, the light-emitting element positioned in the first splicing area is connected to the first driving circuit board through the first flexible circuit board bound to the data binding area, and the light-emitting element positioned in the second splicing area is connected to the second driving circuit board through the second flexible circuit board bound to the grid binding area.
Based on the technical scheme of above-mentioned display module assembly, the utility model discloses a second aspect provides a display device, and this display device includes: the splicing areas of at least two display modules and two adjacent display modules are connected. The display module is the display module.
Optionally, the display device further includes a light guide material, and the light guide material is filled in the two connected splicing regions.
Optionally, the display device further includes a transparent protection layer, and the transparent protection layer covers the plurality of light emitting elements and the light guide material in the two connected splicing regions.
Optionally, a diffusion material and/or a fluorescent material is disposed within the transparent protective layer.
Compared with the prior art, the utility model provides a display module assembly and display device has following beneficial effect:
the utility model provides a display module assembly is including showing backplate, a plurality of light emitting component, flexible circuit board and drive circuit board. The display back plate is provided with a display area, a binding area and a splicing area, wherein the binding area and the splicing area are respectively positioned on different sides of the display area. The plurality of light-emitting elements are arranged in the splicing area; one end of the flexible circuit board is bound in the binding area of the display back plate and is coupled with the plurality of light-emitting elements through the circuit layer on the display back plate, and meanwhile, the driving circuit board is connected with the other end of the flexible circuit board and is used for driving the plurality of light-emitting elements to emit light. Therefore, the utility model provides an in-process that display module assembly shows, a plurality of light emitting component that are located on showing backplate splice area can realize luminous display under drive circuit board's drive for at least one side of display module assembly realizes no frame and shows.
On this basis, in the display device who forms by two at least display module assembly splice each other, can realize having no piece to show between two consecutive display module assemblies, that is to say, the splice region between two consecutive display module assemblies can regard as the display area of normal luminous demonstration to realize display device's no piece and show.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided for explaining the invention without unduly limiting it. In the drawings:
fig. 1 illustrates a schematic top view of a display module according to some embodiments of the present invention;
FIG. 2 is a schematic cross-sectional view of the display module of FIG. 1 at X-X';
fig. 3 illustrates a schematic top view of a color filter substrate according to some embodiments of the present invention;
fig. 4 shows a schematic top view of a display device according to some embodiments of the invention;
fig. 5 shows a schematic cross-sectional view of the display device of fig. 4 at Y-Y'.
Reference numerals:
1-display backplane, 2-light emitting element, 21-second driving circuit,
3-flexible circuit board, 31-first flexible circuit board, 32-second flexible circuit board,
4-drive circuit board, 41-first drive circuit board, 42-second drive circuit board,
5-metal anode, 6-metal cathode, 7-input terminal,
8-color film substrate, 81-color filter layer, 82-shading pattern,
9-backlight source, 10-connecting component 11-LED lamp,
12-a light-blocking part, 13-an upper polarizer, 14-a lower polarizer,
15-light guide material, 16-transparent protective layer, A-display area,
b-binding region, C-splicing region, C1-first splicing region,
c2-second splicing area, C11-color film covering area, C12-light-emitting element mounting area,
a DP-data binding region, a GP-gate binding region, a 100-display module,
200-display device.
Detailed Description
For convenience of understanding, the display module and the display device provided by the embodiments of the present invention are described in detail below with reference to the drawings of the specification.
Some embodiments of the present invention provide a display module 100. As shown in fig. 1, the display module 100 includes a display back plate 1, a plurality of light emitting elements 2, a flexible circuit board 3, and a driving circuit board 4. The display back plate 1 is provided with a display area A, a binding area B and a splicing area C, wherein the binding area B and the splicing area C are respectively positioned on different sides of the display area A. The light emitting elements 2 are disposed on the display backplane 1 and located in the splicing region C. One end of the flexible circuit board 3 is bound to the binding region B of the display backplane 1, and is coupled with the plurality of light emitting elements 2 through a circuit layer on the display backplane 1. The driving circuit board 4 is connected to the other end of the flexible circuit board 3, and the driving circuit board 4 is used for driving the plurality of light emitting elements 2 to emit light.
The utility model provides a display module assembly 100, through showing that backplate 1 divides the display area A, bind district B and splice district C, set up a plurality of light emitting component 2 on the splice district C that shows backplate 1, and give out light by drive circuit board 4 drive light emitting component 2, thereby can be at display module assembly 100's display process, make display module assembly 100 correspond the splice district C that shows backplate 1 and all realize luminous display with the position that corresponds display module assembly A that shows backplate 1, make at least one side of display module assembly 100 realize frameless to show promptly.
Furthermore, by a plurality of the utility model provides an among the display device that the concatenation of display module assembly 100 formed, can realize between two consecutive display module assemblies 100 that no piece shows, that is to say, the splice region C between two consecutive display module assemblies 100 can regard as the display area that normally sends out light display to realize display device's no piece and show, improve display device's display effect, improve user's use and experience.
It should be noted that, the embodiments of the present invention do not limit the light emitting color of each light emitting element 2, that is, the light emitting elements 2 can emit the light of the same color, and also can emit the light of different colors, and only the display function of the splicing region C needs to be realized.
For example, the plurality of light emitting elements 2 may emit white light, so that when the display module 100 displays, the splicing regions C of the display module 100 may display a white picture, and the displayed white picture may be connected to the display picture of the display region a, so that the display device formed after the splicing regions C of at least two display modules 100 are connected may implement seamless display. It is understood that the example in which the plurality of light emitting elements 2 all emit white light is only one example of the present invention, that is, under other display environments, the plurality of light emitting elements 2 may also all emit any one of blue light, red light, green light, and the like according to display requirements.
For another example, it is also possible to use any adjacent three light emitting elements 2 among the plurality of light emitting elements 2 as one light emitting unit, and arrange the three light emitting elements 2 to emit light of three primary colors, respectively, for example, the three light emitting elements 2 are a red light emitting element, a green light emitting element, and a blue light emitting element, respectively. At this time, each light-emitting unit may be regarded as a pixel, and the three light-emitting elements 2 in each light-emitting unit may be regarded as three primary color sub-pixels (for example, a red sub-pixel, a green sub-pixel, and a blue sub-pixel) in the pixel, so that by individually controlling the three light-emitting elements in each light-emitting unit, each light-emitting unit can be controlled to display any color, and further, single-color picture display or multi-color picture display can be realized in the splicing region C by the plurality of light-emitting units. That is to say, the splicing region C of the display module 100 can realize the display of a single-color picture of any color or the display of a multi-color picture composed of any multiple colors, and the single-color picture or the multi-color picture can be connected with the display picture of the display region a. Further, the plurality of light emitting elements 2 in the splicing region C can also cooperate with the pixels in the display region a to display a complete picture, that is, the picture displayed at the position of the splicing region C can be determined by the whole picture to be displayed by the display module 100.
The light emitting element 2 may be a light emitting diode, an organic light emitting diode, a light emitting chip, or the like.
The utility model discloses in be provided with the circuit layer on the display backplate 1 that provides, this circuit layer includes first drive circuit (not shown in the figure) and second drive circuit 21. The first driving circuit is used for driving the pixels of the display area A of the display backboard 1 to emit light so as to realize normal display; and the second driving circuit 21 is used for driving the plurality of light emitting elements 2 of the splicing region C to emit light.
On the basis, for example, as shown in fig. 2, a plurality of metal anodes 5 and a plurality of metal cathodes 6 are further disposed on the display back panel 1, and the plurality of metal anodes 5 and the plurality of metal cathodes 6 are all located in the splicing region C. And the plurality of metal positive electrodes 5 and the plurality of metal negative electrodes 6 are each connected to the second drive circuit 21 in the circuit layer of the display back panel 1.
The plurality of light emitting elements 2 may be disposed on the plurality of metal anodes 5 and the plurality of metal cathodes 6 of the display backplane 1, i.e., one light emitting element 2 connects one metal anode 5 and one metal cathode 6. In this way, each light emitting element 2 can be connected to the second drive circuit 21 through the metal anode 5 and the metal cathode 6 connected thereto.
Illustratively, the plurality of metal anodes 5 and the plurality of metal cathodes 6 are disposed in the form of bonding pads at the splicing region C of the display backplane 1.
At this time, each light emitting element 2 may be punched on the corresponding metal positive electrode 5 and metal negative electrode 6. For example, the metal positive electrode 5 and the metal negative electrode 6 may be coated with solder paste first; then the light-emitting component 2 is placed on the metal anode 5 and the metal cathode 6 coated with the soldering paste, so that the anode of the light-emitting component 2 is lapped with the metal anode 5, and the cathode of the light-emitting component 2 is lapped with the metal cathode 6; then, heating the soldering paste to melt the soldering paste; after the alloy components in the solder paste to be soldered are cooled and solidified, solder joints are formed between the light-emitting element 2 and the soldering pad, so that the light-emitting element 2 is punched on the corresponding metal anode 5 and the metal cathode 6. By adopting the process, the light-emitting element 2 can be arranged on the splicing region C of the display back plate 1, and the connection reliability between the light-emitting element 2 and the metal anode 5 and the metal cathode 6 can be improved.
It should be noted that, in the embodiments of the present invention, the connection relationship between the plurality of light emitting elements 2 is not limited, that is, the plurality of light emitting elements 2 may be connected to each other by the second driving circuit 21 in common cathode, may be connected by the second driving circuit 21 in common anode, or may be connected to each other in series by the second driving circuit 21. After the second driving circuit 21 is coupled to the flexible circuit board 3 and the driving circuit board 4, the driving circuit board 4 can be used to drive the light emitting elements 2 to normally emit light for display.
In the case where the plurality of light emitting elements 2 are connected in series with each other, the cathodes and the anodes of the plurality of light emitting elements 2 are sequentially connected end to end by the second drive circuit 21, and the anode (cathode) of the light emitting element 2 located at the head and the cathode (anode) of the light emitting element 2 located at the tail are connected to the flexible circuit board 3 through the second drive circuit 21, respectively, at this time, the structure of the second drive circuit 21 is relatively simple, and it is convenient to directly drive the plurality of light emitting elements 2 to emit light simultaneously by the drive circuit board 4.
In the case of a common cathode connection among the light emitting elements 2, the cathodes of the light emitting elements 2 are connected to the same negative conductive line in the second driving circuit 21, and the anodes of the light emitting elements 2 are respectively connected to different positive conductive lines in the second driving circuit 21. With this arrangement, when the plurality of light emitting elements 2 are driven to emit light to display a screen, each light emitting element 2 can be individually controlled by supplying an electric signal to each of the different positive electrode conductive lines.
Similarly, in the case of common anode connection among the light emitting elements 2, the anodes of the light emitting elements 2 are connected to the same positive conductive line in the second driving circuit 21, and the cathodes of the light emitting elements 2 are respectively connected to different negative conductive lines in the second driving circuit 21, so that each light emitting element 2 can be controlled individually by providing electrical signals to the different negative conductive lines when the light emitting elements 2 are driven to emit light to display a picture.
In addition, when the plurality of light emitting elements 2 are connected to each other by common cathode or common anode, there is no problem that all the light emitting elements 2 cannot display normally due to a problem of one light emitting element 2 in the process of driving the plurality of light emitting elements 2 to emit light. Meanwhile, the single light-emitting element 2 is independently controlled, and the light-emitting unit formed by the three light-emitting elements 2 can display any color, so that the plurality of light-emitting elements 2 can be matched with the pixels of the display area A, a complete picture can be displayed, and the display quality of the display module 100 is improved.
In some embodiments of the present invention, as shown in fig. 2, the display module 100 further includes a color film substrate 8 disposed on the display backplane 1 and located on the same side as the light emitting element 2. The color film substrate 8 and the display back plate 1 can be combined into a whole through a box aligning process. The orthographic projection of the color film substrate 8 on the display backboard 1 at least covers the display area a, so that the display module 100 can realize color display at the position corresponding to the display area a of the display backboard 1. Meanwhile, the orthographic projection of the color film substrate 8 on the display back panel 1 and the orthographic projection of the plurality of light emitting elements 2 on the display back panel 1 are not overlapped with each other. Thus, the light emitted from the light emitting element 2 is not easily blocked by the color filter substrate 8.
On this basis, for example, as shown in fig. 2, a side surface p of the color filter substrate 8 close to the plurality of light emitting elements 2 is gradually away from the plurality of light emitting elements 2 from one end close to the display backplane 1 to one end away from the display backplane 1. Therefore, the light emitted by the light emitting element 2 can be emitted to the side close to the display area a more, so that the splicing area C of the display module 100 can emit light for display, and a black gap is not easy to appear in the area close to the display area a in the splicing area C.
In some embodiments, as shown in fig. 2, the orthographic projection of the color film substrate 8 on the display backplane 1 may cover not only the display area a of the display backplane 1, but also a partial splicing area C of the display backplane 1. At this moment, the splicing region C of the display back panel 1 provided by the present invention can be divided into two parts, i.e. the color film covering region C11 close to the display region a and the light emitting element mounting region C12 far away from the display region a. The color filter coverage area C11 is connected to the light emitting element mounting area C12. The color film substrate 8 covers the portion of the display backplane 1 located in the color film coverage area C11, and the color film substrate 8 does not cover the portion of the display backplane 1 located in the light-emitting element mounting area C12.
As shown in fig. 3, the color filter substrate 8 may include a color filter layer 81 and a light shielding pattern 82. The color filter layer 81 includes a plurality of filters, such as a green filter, a red filter, and a blue filter. The plurality of light filtering parts can be in one-to-one correspondence with the plurality of light emitting parts of the display area of the display back plate, and the plurality of light filtering parts are used for filtering light entering the light filtering parts so as to enable the light with three primary colors for color display to penetrate through and realize the picture display of the display area. Shading pattern 82 is the grid structure, and this grid structure includes a plurality of grids, can be provided with a light filtering part in every grid, and this shading pattern 82 has the effect of absorbing all visible wavelength band's light for separate each light filtering part, prevent to take place the cross color between the light filtering part of difference, influence display effect.
In some examples, the side of the light shielding pattern 82 away from the display area is a side p of the color filter substrate 8 close to the plurality of light emitting elements 2. At this time, the side face p may have a reflection function. Like this, when the light that light emitting component 2 sent shines to this side p on, can be reflected by this side p, make light finally correspond shading pattern 82's position department outgoing by splice area C to carry out the light filling to splice area C corresponding shading pattern 82's position, avoid after two at least display module assemblies 100 splice each other and form display device, appear the black line in the position department that display device splices each other, influence display device's whole display effect.
The size L1 of the color film coverage area C11 along the first direction E may range from 0.2mm to 0.4mm, for example, the size L1 of the color film coverage area C11 along the first direction E may range from 0.2mm to 0.25mm, 0.25mm to 0.35mm, or 0.35mm to 0.4 mm; for another example, the size L1 of the color filter overlay region C11 along the first direction E may be 0.2mm, 0.3mm, or 0.4 mm. Therefore, the width of the color film covering area C11 is smaller, that is, the area of the splicing area C without the light-emitting element 2 is reduced, so that the light-emitting element 2 can illuminate the whole splicing area C, and the problem that the splicing area generates black stripes due to the fact that the color film covering area cannot self-illuminate is solved.
In some embodiments, as shown in fig. 2, the size L2 of the light-emitting element mounting area C12 along the first direction E is set to range from 0.2mm to 0.4 mm. That is, the size of the region on the splicing region, in which the light emitting element 2 can be mounted, along the first direction E ranges from 0.2mm to 0.4 mm. Among them, the light emitting element mounting region C12 is used for mounting a plurality of light emitting elements 2, and when the size of the light emitting element mounting region C12 in the first direction E is too small, the light emitting elements 2 are difficult to mount on the light emitting element mounting region C12 of the splicing region C due to the limitation of the size of the light emitting elements 2. When the size of the light emitting element mounting area C12 in the first direction E is too large, in order to realize light emitting display of the area, the number of light emitting elements 2 to be arranged in the area needs to be increased accordingly, which is costly. In this embodiment, the value range of the dimension L2 of the light-emitting element mounting area C12 along the first direction E is set to 0.2 mm-0.4 mm, which not only ensures that the light-emitting element 2 is disposed on the display back plate 1, but also realizes the frameless display on at least one side of the display module 100, so that the display device formed by splicing at least two display modules 100 can realize the seamless display. Meanwhile, the size of the light-emitting element mounting area C12 of the splicing area C of the display back panel 1 can be controlled to be relatively small, so that the number of the light-emitting elements 2 arranged in the first direction E in the light-emitting element mounting area C12 is reduced, and the cost is reduced.
In some embodiments, as shown in fig. 1, one end of the flexible circuit board 3 is bound to the binding region B of the display backplane 1 and coupled with the plurality of light emitting elements 2 through the circuit layer on the display backplane 1. The binding region B of the display backplane 1 is provided with a binding terminal (not shown in the figure), and the flexible circuit board 3 is connected with the binding terminal, so as to be bound on the binding region of the display backplane 1.
Meanwhile, the driving circuit board 4 is connected to the other end of the flexible circuit board 3 for driving the light emitting element 2 to emit light normally. It should be noted that the driving circuit board 4 can also be used to drive the pixels in the display area a of the display back plate 3 to realize normal display. Therefore, the utility model provides an in-process that display module assembly 100 realized showing, drive circuit board 4 can drive the pixel of display area A simultaneously and splice a plurality of light emitting component 2 of district C and give out light, realizes the picture and shows.
On this basis, the driving circuit board 4 is provided with an input terminal 7, and the input terminal 7 is used for receiving an external input signal. When an external input signal is input to the driving circuit board 4 through the input terminal 7, the driving circuit board 4 processes the input signal, and drives the display back plate 1 and the light emitting element 2 connected to the driving circuit board 4 according to the input signal, thereby realizing simultaneous light emitting display of the display back plate 1 and the light emitting element 2.
In some embodiments, as shown in fig. 1, the binding region B may include a gate binding region GP and a data binding region DP. The splicing regions C may include a first splicing region C1 located at an opposite side of the gate bonding region GP, and a second splicing region C2 located at an opposite side of the data bonding region DP. The flexible circuit board 3 may include a first flexible circuit board 31 and a second flexible circuit board 32. Also, the driving circuit board 4 may include a first driving circuit board 41 and a second driving circuit board 42. The light emitting element 2 located in the first splicing region C1 is connected to the first driving circuit board 41 through the first flexible circuit board 31 bound to the data binding region DP, and the light emitting element 2 located in the second splicing region C2 is connected to the second driving circuit board 42 through the second flexible circuit board 32 bound to the gate binding region GP.
It should be noted that the first splicing region C1 and the second splicing region C2 may both include the color film covering region C11 and the light emitting device mounting region C12.
Through setting up like this, the utility model provides a display module assembly 100 can utilize first drive circuit board 41 and second drive circuit board 42 to realize the drive to the light emitting component 2 that is located first splice area C1 and second splice area C2 respectively to simplify the wiring of second drive circuit 21 in the circuit layer among the display back plate 1, simplify the drive process, improve the display effect of display frame.
It should be noted that the present invention provides a display module that can be a self-luminous display module (e.g., an organic light emitting diode display module, a quantum dot display module, etc.), and can also be a liquid crystal display module.
When the display module provided by the present invention is a liquid crystal display module, in some embodiments, the display module 100 includes a liquid crystal layer and a backlight 9. The liquid crystal layer (not shown in the figure) is packaged between the display back plate 1 and the color film substrate 8. The backlight source 9 is arranged on one side of the display backboard 1 departing from the color film substrate 8, and the backlight source 9 is connected with the display backboard 1 through a connecting component 10. The backlight 9 is provided with a plurality of LED lamps 11, so as to provide a light source for a display panel formed by the display backplane 1 and the color film substrate 8 in a box-to-box manner.
The connecting member 10 may be a frame adhesive formed by curing a transparent adhesive.
Since the connecting member 10 is made of a transparent material, when the backlight 9 and the display back plate 1 are connected by the connecting member 10, light inevitably exits from the backlight 9 and exits to the outside of the display module through the connecting member 10, which causes side light leakage. In order to prevent the side light leakage caused by the connecting member 10, the liquid crystal display module of the present invention further includes a light blocking portion 12. Alternatively, as can be seen from fig. 2, the light blocking portion 12 covers at least a connection portion between the backlight 9 and the display back plate 1 of the liquid crystal display module.
On this basis, in an exemplary embodiment, the display module 100 further includes an upper polarizer 13 and a lower polarizer 14, the upper polarizer 13 is located on one side of the color film substrate 8 departing from the display backplane 1, the lower polarizer 14 is located on one side of the display backplane 1 departing from the color film substrate 8, and the backlight 9 is located on one side of the lower polarizer 14 departing from the display backplane 1. Through the upper polarizer 13 and the lower polarizer 14, the lower polarizer 14 forms polarized light with a polarization direction parallel to the polarization direction of the lower polarizer 14 through the backlight of the lower polarizer, the polarized light penetrates through the display backplane 1, the liquid crystal layer and the color film substrate 8 and then enters the upper polarizer 13, light with a polarization direction parallel to the polarization direction of the upper polarizer 13 in the light entering the upper polarizer 13 is emitted from the upper polarizer 13, and light with a polarization direction perpendicular to the polarization direction of the upper polarizer 13 in the light entering the upper polarizer 13 is shielded by the upper polarizer 13, so that the display of the position of the liquid crystal display module corresponding to the display area a of the display backplane 1 is realized.
Some embodiments of the present invention provide a display device 200, as shown in fig. 4, the display device 200 includes: in the display module 100 according to any of the above embodiments, the splicing regions C of the display back panels 3 of two adjacent display modules 100 are connected.
The display device 200 can display a large screen, and can be used as an advertisement mosaic screen, a conference mosaic screen, or the like.
In the display device 100 provided by this embodiment, seamless display can be realized between two connected display modules 100, that is to say, two splicing regions between two connected display modules 100 can be used as the display area of normal luminous display, thereby realizing seamless display of the display device, improving the display effect of the display device, and improving the use experience of users.
As a possible design, as shown in fig. 4, the display device 200 provided by the present invention includes four display modules 100 that are spliced with each other, and the splicing regions C between two adjacent display modules 100 are connected with each other.
As a possible design, the display device 200 provided by the present invention further includes a light guide material 15, as shown in fig. 5, the light guide material 15 is filled in the two connected splicing regions C. Through the arrangement, the light guide material 15 can be filled in the side face, close to the plurality of light-emitting elements 2, of the color film substrate 8, so that light emitted by the light-emitting elements 2 is guided to one side, close to the display area, of the splicing area, and the light-emitting elements 2 can supplement light for the whole splicing area.
For example, the material of the light guide material 15 may be at least one of polycarbonate, resin, and the like.
As a possible design, referring to fig. 5, the display device 200 provided by the present invention further includes a transparent protection layer 16, the transparent protection layer 16 covers the plurality of light emitting elements 2 and the light guiding material 15 in the two connected splicing regions C, so as to protect the light emitting elements 2 disposed in the splicing regions C and prevent the light emitting elements 2 from being damaged.
Illustratively, the transparent protective layer 16 may be formed by curing a protective paste, and the material of the protective paste may be at least one of resin, silicon gel, and the like.
Further, the utility model discloses in the transparent protective layer 16 that provides in be doped with diffusion material (not shown in the figure), through set up like this can make the light intensity that splice area C light emitting component 2 sent and the light intensity that the display area A sent in showing backplate 1 almost unanimous, improve display device 200's display effect.
Wherein the diffusion material may be diffusion particles. The diffusion particles are disposed in the transparent protection layer 16, so that the light emitted from the light emitting element 2 can be reflected back under the action of the diffusion particles after being incident on the transparent protection layer 16, thereby achieving the function of atomizing the light. In this way, the light emitting elements 2 are not easily seen from the outside of the transparent protective layer, so that the display effect of the splicing region C of the display device 200 can be closer to the display effect of the display region a of the display device 200.
Further, a fluorescent material may also be disposed in the transparent protective layer 16, for example. The fluorescent material can emit fluorescence after being irradiated by light emitted by the light-emitting element, so that the display brightness can be further improved, and the display effect of the light-emitting element under normal power consumption can be displayed in the splicing area of the display device under lower power consumption of the light-emitting element.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A display module, comprising:
the display back panel is provided with a display area, a binding area and a splicing area, wherein the binding area and the splicing area are respectively positioned on different sides of the display area;
the plurality of light-emitting elements are arranged on the display back plate and are positioned in the splicing area;
a flexible circuit board, one end of which is bound to the binding region of the display backplane and coupled to the plurality of light emitting elements through a circuit layer on the display backplane;
and the driving circuit board is connected with the other end of the flexible circuit board and is used for driving the plurality of light-emitting elements to emit light.
2. The display module assembly of claim 1, wherein the display module assembly further comprises:
the color film substrate is arranged on the same side of the display backboard as the plurality of light-emitting elements, the orthographic projection of the color film substrate on the display backboard at least covers the display area, and the orthographic projection of the color film substrate on the display backboard and the orthographic projection of the plurality of light-emitting elements on the display backboard are not overlapped with each other.
3. The display module according to claim 2, wherein the side surface of the color film substrate close to the plurality of light emitting elements is gradually away from the plurality of light emitting elements from one end close to the display backplane to one end away from the display backplane.
4. The display module according to claim 2 or 3, wherein the splicing region comprises a color film covering region close to the display region and a light emitting element mounting region far away from the display region; the color film coverage area is connected with the light-emitting element mounting area; the color film substrate covers the part of the display back panel positioned in the color film covering area, and the color film substrate does not cover the part of the display back panel positioned in the light-emitting element mounting area;
the size of the color film coverage area along the first direction ranges from 0.2mm to 0.4 mm; and/or the size of the light-emitting element mounting area along the first direction ranges from 0.2mm to 0.4 mm;
the first direction is parallel to the display back plate and perpendicular to an interface between the display area and the splicing area.
5. The display module according to claim 2 or 3, wherein the display module is a liquid crystal display module; the display module assembly still includes:
the liquid crystal layer is packaged between the display back plate and the color film substrate;
the upper polaroid is positioned on one side, away from the display back plate, of the color film substrate;
the lower polarizer is positioned on one side, away from the color film substrate, of the display back plate;
the backlight source is positioned on one side, away from the display back plate, of the lower polarizer;
the light-blocking part at least covers the connecting part between the display back plate and the backlight source.
6. The display module according to any one of claims 1 to 3, wherein the binding regions comprise a gate binding region and a data binding region;
the splicing regions comprise a first splicing region positioned on the opposite side of the grid binding region and a second splicing region positioned on the opposite side of the data binding region; the flexible circuit board comprises a first flexible circuit board and a second flexible circuit board; the driving circuit board comprises a first driving circuit board and a second driving circuit board;
among the plurality of light-emitting elements, the light-emitting element positioned in the first splicing area is connected to the first driving circuit board through a first flexible circuit board bound to the data binding area, and the light-emitting element positioned in the second splicing area is connected to the second driving circuit board through a second flexible circuit board bound to the grid binding area.
7. A display device, comprising:
at least two display modules according to any one of claims 1 to 6; the splicing areas of two adjacent display modules are connected.
8. The display device according to claim 7, further comprising:
and the light guide material is filled in the two connected splicing areas.
9. The display device according to claim 8, further comprising:
and the transparent protective layer covers the plurality of light-emitting elements and the light guide material in the two connected splicing areas.
10. A display device as claimed in claim 9, characterised in that a diffusing material and/or a fluorescent material is provided within the transparent protective layer.
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| CN202020960570.6U CN212460249U (en) | 2020-05-29 | 2020-05-29 | Display module and display device |
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| CN202020960570.6U CN212460249U (en) | 2020-05-29 | 2020-05-29 | Display module and display device |
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| CN212460249U true CN212460249U (en) | 2021-02-02 |
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| CN114822271A (en) * | 2022-04-06 | 2022-07-29 | Tcl华星光电技术有限公司 | Splicing display device and splicing display screen |
| CN114822271B (en) * | 2022-04-06 | 2023-08-22 | Tcl华星光电技术有限公司 | Spliced display device and spliced display screen |
| CN114822286B (en) * | 2022-04-06 | 2023-09-05 | Tcl华星光电技术有限公司 | Spliced display panel and spliced display device |
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