CN113570969A - Display device - Google Patents
Display device Download PDFInfo
- Publication number
- CN113570969A CN113570969A CN202110836082.3A CN202110836082A CN113570969A CN 113570969 A CN113570969 A CN 113570969A CN 202110836082 A CN202110836082 A CN 202110836082A CN 113570969 A CN113570969 A CN 113570969A
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- CN
- China
- Prior art keywords
- circuit board
- printed circuit
- back plate
- bottom plate
- display device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1401—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means
- H05K7/1402—Mounting supporting structure in casing or on frame or rack comprising clamping or extracting means for securing or extracting printed circuit boards
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0064—Earth or grounding circuit
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0067—Devices for protecting against damage from electrostatic discharge
Abstract
The application discloses display device includes: the backlight module is used for providing backlight for the display panel; the printed circuit board is electrically connected with an internal circuit of the display panel; the backlight module includes: the backlight source is arranged on the back plate; the back plate is provided with a fixed connecting piece, the fixed connecting piece is used for fixing the printed circuit board and is electrically connected with a copper leakage area of the printed circuit board, and the back plate is grounded. This application is through above-mentioned scheme to reduce the problem that display device damaged in the transportation.
Description
Technical Field
The application relates to the technical field of display, in particular to a display device.
Background
Along with the development of display technology, more and more that display device of no frame design can appear, in order to realize display device's narrow frame or no frame, the back of the backplate in backlight unit need be put to the printed circuit board on the present display module assembly, but if place printed circuit board in the back of backplate, can bring the poor problem of effect of preventing static again.
At present, in order to achieve the effect of preventing static electricity by conducting the back of the printed circuit board and the back plate, a piece of conductive foam is arranged between the printed circuit board and the back plate to achieve conductive connection between the printed circuit board and the back plate, but the thickness of the printed circuit board is increased due to the fact that the conductive foam is cotton in the transportation process, and when the conductive foam is stacked, the height difference between the display panel and the printed circuit board is too large, and the problem of breakage and damage of the flexible circuit board is caused.
Disclosure of Invention
The utility model aims at providing a display device can also reduce the problem that display panel damaged in the transportation under the circumstances of guaranteeing to lead static between printed circuit board and the backplate.
The application discloses display device includes: the display device comprises a display panel, a printed circuit board and a backlight module; the printed circuit board is electrically connected with an internal circuit of the display panel; the backlight module comprises a back plate; the back plate is provided with a fixed connecting piece, the fixed connecting piece is used for fixing the printed circuit board and is electrically connected with a copper leakage area of the printed circuit board, and the back plate is grounded.
Optionally, the fixed connecting piece includes a buckle structure, the buckle structure is fixed on the back plate, the buckle structure includes a bottom plate and two clamping portions, the two clamping portions are correspondingly arranged on two sides of the bottom plate, and the bottom plate is detachably fixed on the back plate; the copper leakage area of the printed circuit board is correspondingly electrically connected with any one of the clamping parts, and the clamping structure is grounded through the back plate.
Optionally, the fixing and connecting member includes a fixing member and a connecting member, the fixing member includes a double-sided adhesive tape, the connecting member includes a protruding structure, and the protruding structure is disposed corresponding to the copper leakage area of the printed circuit board and electrically connected to the copper leakage area of the printed circuit board; the printed circuit board is characterized in that one surface provided with components is a front surface, the front surface of the printed circuit board is deviated from the back plate, the back surface of the printed circuit board faces the shell assembly, and the copper leakage area of the printed circuit board is arranged on the back surface of the printed circuit board; the back surface of the printed circuit board is adhered to the back plate through the double-sided adhesive tape.
Optionally, the fixed connection piece includes mounting and connecting piece, the mounting includes insulating buckle, the connecting piece includes protruding structure, insulating buckle is used for fixing printed circuit board, protruding structure corresponds printed circuit board's copper leakage district sets up, and the electricity is connected printed circuit board's copper leakage district, insulating buckle with protruding structure is in projection on the backplate does not coincide.
Optionally, the display panel includes a first display panel and a second display panel, the printed circuit board includes a first printed circuit board and a second printed circuit board, the display device further includes a first flexible circuit board and a second flexible circuit board, wherein the first display panel and the second display panel are completely attached and bonded, the first printed circuit board is bound on the first display panel through the first flexible circuit board, and the second printed circuit board is bound on the second display panel through the second flexible circuit board; the fixing connector fixes the first printed circuit board and the second printed circuit board at the same time.
Optionally, the fixing and connecting member includes a fixing member and a connecting member, the fixing member includes a double-sided tape, the connecting member includes a protruding structure, and the protruding structure is disposed corresponding to the copper leakage area of the first printed circuit board and electrically connected to the copper leakage area of the first printed circuit board; the second printed circuit board is connected with the first printed circuit board through conductive foam.
Optionally, the fixed connecting piece includes a buckle structure, the buckle structure is fixed on the back plate, the buckle structure includes a bottom plate and two clamping portions, the two clamping portions are correspondingly arranged on two sides of the bottom plate, and the bottom plate is detachably fixed on the back plate; the first printed circuit board and the second printed circuit board are stacked on the bottom plate, and the two clamping parts fix the first printed circuit board and the second printed circuit board; the second printed circuit board and the first printed circuit board are fixed through rubber; the copper leakage area of the first printed circuit board is correspondingly and electrically connected with any one of the clamping parts, the copper leakage area of the first printed circuit board is correspondingly and electrically connected with the bottom plate, and the clamping structure is grounded through the back plate.
Optionally, the fixed connecting piece includes a buckle structure, the buckle structure is fixed on the back plate, the buckle structure includes a bottom plate, two clamping portions and a partition plate, the two clamping portions are correspondingly arranged on two sides of the bottom plate, and the bottom plate is detachably fixed on the back plate; the first printed circuit board and the second printed circuit board are stacked and arranged on the bottom plate, and the partition plate is arranged between the second printed circuit board and the first printed circuit board; the copper leakage area of the first printed circuit board is correspondingly and electrically connected with the bottom plate, and the copper leakage area of the second printed circuit board is correspondingly and electrically connected with the clamping part; the buckle structure is grounded through the back plate.
Optionally, the projections of the first printed circuit board and the second printed circuit board on the back plate are not overlapped, and the first printed circuit board and the second printed circuit board are arranged in a staggered manner.
Optionally, the fixed connecting member includes a double-sided tape, a protruding structure and a fastening structure, and a distance between the first printed circuit board and the edge of the back plate is smaller than a distance between the second printed circuit board and the edge of the back plate; the protruding structure is arranged corresponding to the copper leakage area of the first printed circuit board and is electrically connected with the copper leakage area of the first printed circuit board; the double-sided adhesive tape is arranged corresponding to the first printed circuit board and fixes the first printed circuit board; the buckle structure comprises a bottom plate and two clamping parts, the two clamping parts are correspondingly arranged on two sides of the bottom plate, and the bottom plate is detachably fixed on the back plate; the copper leakage area of the printed circuit board is correspondingly electrically connected with any one of the clamping parts, and the clamping structure is grounded through the back plate.
For adopting electrically conductive bubble cotton, electrically conductive bubble cotton needs set up on printed circuit board, produces cracked problem when leading to the dress box. This application need not set up the electrically conductive bubble cotton on printed circuit board, directly through set up fixed connector on the backplate, and this fixed connector can fix printed circuit board, can switch on printed circuit board's hourglass copper district again for printed circuit board ground connection, perfect solution static problem can also reduce the problem that printed circuit board damaged in the transportation.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic view of a first display device of a first embodiment of the present application;
fig. 2 is a schematic view of a second display device of the first embodiment of the present application;
fig. 3 is a schematic view of a third display device of the first embodiment of the present application;
fig. 4 is a schematic view of a fourth display device of the first embodiment of the present application;
fig. 5 is a schematic view of a first display device of a second embodiment of the present application;
fig. 6 is a schematic view of a second display device of a second embodiment of the present application;
fig. 7 is a schematic view of a first display device of a third embodiment of the present application;
fig. 8 is a schematic view of a second display device of a third embodiment of the present application;
fig. 9 is a schematic view of a third display device of the third embodiment of the present application;
fig. 10 is a schematic view of a fourth display device of the third embodiment of the present application.
Wherein, 10 display devices; 20. a display panel; 21. a first display panel; 22. a second display panel; 23. optical cement; 30. a printed circuit board; 32. a front side; 33. a back side; 34. a first printed circuit board; 35. a second printed circuit board; 40. a flexible circuit board; 41. a first flexible circuit board; 42. a second flexible circuit board; 100. a backlight module; 110. a back plate; 111. a rubber frame; 112. a front frame; 120. a backlight source; 121. a light bar; 122. a support pillar; 123. a diffusion plate; 124. an optical film layer; 125. a light guide plate; 130. fixing the connecting piece; 131. a buckle structure; 132. a base plate; 133. a clamping part; 134. a partition plate; 135. conductive foam; 136. rubber; 140. a fixing member; 141. insulating buckles; 150. a connecting member.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The present application is described in detail below with reference to the figures and alternative embodiments.
The first embodiment is as follows:
as shown in fig. 1, as a first embodiment of the present application, there is disclosed a display device 10, the display device 10 including: the display device comprises a display panel 20, a printed circuit board 30 and a backlight module, wherein the backlight module provides backlight for the display panel 20; the printed circuit board 30 is electrically connected to an internal circuit of the display panel 20; the backlight module includes: a back plate 110 and a backlight 120, the backlight 120 being disposed on the back plate 110; the back plate 110 is provided with a fixing connector 130, the fixing connector 130 is used for fixing the printed circuit board 30 and electrically connected to a copper leakage area of the printed circuit board 30, and the back plate 110 is grounded.
Compared with the adoption of the conductive foam, the conductive foam needs to be arranged on the printed circuit board 30, so that the problem of cracking is caused when the box is packed. This application need not set up the electrically conductive bubble cotton on printed circuit board 30, directly through set up fixed connector 130 on backplate 110, and this fixed connector 130 can be fixed printed circuit board 30, can switch on printed circuit board 30 again and leak the copper district for printed circuit board 30 ground connection, the perfect static problem of solving.
As shown in fig. 1, the display device 10 further includes a flexible circuit board 40, and the backlight module includes: the display panel comprises a rubber frame 111 and a front frame 112, wherein the rubber frame 111 is arranged on the back plate 110, the front frame 112 is arranged on the rubber frame 111, one end of the flexible circuit board 40 is bound on one side of the display panel 20 and is electrically connected with an internal circuit of the display panel 20; the other end of the flexible circuit board 40 extends toward the back plate 110 and is connected to the printed circuit board 30, and the printed circuit board 30 is disposed on the back plate 110. The fixing connector 130 includes a fixing member 140 and a connecting member 150, and the fixing member 140 may be a double-sided tape or other adhesive tape, and fixes the printed circuit board 30 on the back plate 110 by an adhesive fixing method. And the connecting member 150 may be used to provide a bump structure on the back plate 110, wherein the bump structure is electrically connected to the copper leakage region of the printed circuit board 30. In this embodiment, the fixing and the conducting of the pcb 30 are separated, and there may be more options for separating the fixing and the conducting, for example, non-conducting material, double-sided tape, etc. is used to fix the pcb 30, and the fixing member 140 does not cause a short circuit problem with some components on the pcb 30. And the use of double-sided adhesive tape can save the space occupied by using the conductive foam, for example.
Specifically, the connecting member 150 includes a protruding structure, which is disposed corresponding to the copper leakage area of the printed circuit board 30 and electrically connected to the copper leakage area of the printed circuit board 30; the side of the printed circuit board 30 provided with the components is a front side 32, the front side of the printed circuit board 30 is away from the back plate 110, a back side 33 of the printed circuit board 30 faces the housing assembly, and the copper leakage area of the printed circuit board 30 is arranged on the back side of the printed circuit board 30; the back surface 33 of the printed circuit board 30 is adhered to the back plate 110 by the double-sided adhesive tape. Since the backplate 110 is substantially thinner, the backplate 110 may be stamped during the forming process to protrude from the backplate 110 in the direction from the display panel 20 toward the printed circuit board 30, and the protruding structures and the backplate 110 are both conductors electrically connected to the copper leakage regions of the printed circuit board 30 so as to ground the printed circuit board 30.
Generally, the front surface is provided with components and parts, which may be thicker, and if the front surface is attached to the back plate 110, even if a thin fixing manner such as a double-sided adhesive tape is adopted, a gap between the printed circuit board 30 and the back plate 110 is larger, and a thicker protruding structure may be provided. The protruding structure can be designed by using an elastic sheet, namely, the position of the back plate 110 corresponding to the copper leakage area is punched out by using the elastic sheet, a hollow area is formed after the elastic sheet is punched out, the elastic sheet has certain elasticity along the direction vertical to the display panel 20, and when the printed circuit board 30 is fixed on the back plate 110, the elastic sheet can be fully electrically connected with the copper leakage area of the printed circuit board 30.
It should be noted that the backlight module shown in fig. 1 is a direct-type backlight module, and the backlight module includes a light bar 121, a supporting pillar 122, a diffusion plate 123, an optical film 1244, and the like, where the light bar is disposed on the back plate 110, the diffusion plate and the light bar are supported by the supporting pillar, and a certain distance is formed between the diffusion plate and the light bar, and the diffusion plate and the optical film are attached to each other.
In addition to being applicable to a direct type backlight module, the display device 10 of the second embodiment is also applicable to a lateral type backlight module, as shown in fig. 2, based on the modification of fig. 1, the display panel 20, the back plate 110, the plastic frame 111, and the front frame 112 of the display device 10 are the same as those of fig. 1, except that the backlight module may be a lateral type backlight module 120, the lateral type backlight module 120 includes a light bar 121 and a light guide plate 125, the back plate 110 may be designed into an L-shape, the corresponding light guide plate is disposed on the back plate 110, the light bar is disposed at one side of the light guide plate and disposed at the inner side of the back plate 110, the light of the light bar enters along the side of the light guide plate and is emitted from the front of the light guide plate, the front of the light guide plate is close to the display panel 20, and the side of the light guide plate is close to the front frame 112.
As shown in fig. 3, which shows another variation of fig. 1, a third display device 10 of the first embodiment is disclosed, where the display device 10 includes a display panel 20 and a backlight module, the backlight module may be a direct-type backlight module or a side-type backlight module, and fig. 3 illustrates a direct-type backlight module, the difference of this embodiment is that the fixing connector 130 includes a fastening structure 131, the fastening structure 131 is fixed on the back plate 110, the fastening structure 131 includes a bottom plate 132 and two fastening portions 133, the two fastening portions are correspondingly disposed on two sides of the bottom plate, and the bottom plate is detachably fixed on the back plate 110; the copper leakage area of the printed circuit board 30 is electrically connected to any one of the clamping portions, and the clamping structure 131 is grounded through the back plate 110. The fastening structure 131 has a conductive property, the fastening structure 131 needs to be arranged corresponding to the copper leakage area of the printed circuit board 30, the fastening structure 131 is fixed on the back plate 110, and the fastening structure can be fixed on the backlight plate in a threaded fixing manner. Of course, besides this way, a snap structure 131 may be integrally formed on the back plate 110.
Of course, the fastening structure 131 may also be made of an insulating material, the fixing connector 130 includes a fixing member 140 and a connector 150, the fixing member 140 includes an insulating fastening, the connector 150 includes a protruding structure, the insulating fastening is used to fix the printed circuit board 30, the protruding structure is disposed corresponding to the copper leakage area of the printed circuit board 30 and electrically connected to the copper leakage area of the printed circuit board 30, and the projection of the insulating fastening and the protruding structure on the back plate 110 do not overlap. The snap insulation can prevent short circuit from occurring between the printed circuit board 30, and the ground of the printed circuit board 30 is also conducted by a bump structure, specifically, the bump structure can be as in the first embodiment.
As shown in fig. 4, which illustrates a modified embodiment of fig. 2, a fourth display device 10 of the first embodiment is disclosed, the display device 10 is different in that the connection member 150 is not disposed on the back plate 110, the fixing member 140 is still disposed on the back plate 110, the corresponding connection member 150 is disposed on the front frame 112, the front frame 112 is bent at a position corresponding to the back plate 110 and extends toward the printed circuit board 30 fixed at a position corresponding to the back plate 110, so as to form a three-sided surrounding structure, and the display panel 20, the backlight module and the back plate 110 are all surrounded by the front frame 112. This embodiment is suitable for the case where the back plate 110 is not provided with a conductive or ground, and the ground may be performed through the front frame 112. Mainly for the direct type backlight 120, after being turned over, the printed circuit board 30 is turned over and then fixed on the back plate 110 through a double-sided adhesive tape for the condition that the element faces upward, the copper leakage area of the printed circuit board 30 is arranged on the side of the printed circuit board 30 facing the front frame 112, and the tail position of the front frame 112 is turned over and then in interference contact with the copper leakage area of the printed circuit board 30, so that a perfect grounding effect is achieved, and the problem is solved and the element position of the printed circuit board 30 is avoided being temporarily used.
Example two
As shown in fig. 5, which shows a second embodiment of the present application, a display device 10 is disclosed, the display device 10 including: different from the first embodiment, the flexible circuit board 40 of the first embodiment is folded to the back plate 110, and in the first embodiment, the flexible circuit board 40 is only bent between the back plate 110 and the front frame 112 and is not folded below the back plate 110, and for the case that the printed circuit board 30 similar to the tiled screen is not folded, a protruding structure is punched at a position where the side surface of the back plate 110 is opposite to the copper leakage area to ensure contact with the copper leakage area, and the printed circuit board 30 is fixed mainly by a buckle arranged at the side surface of the back plate 110. Of course, instead of using the snap structure for fixing, the printed circuit board 30 can be fixed on the back plate 110 by using the double-sided adhesive tape described above.
As shown in fig. 6, which illustrates a schematic diagram of the fastening structure 131, the fastening structure 131 includes a bottom plate and two fastening portions, a side view of the fastening portion is L-shaped, the printed circuit board 30 is fixed in a half-surrounded structure formed by the bottom plate and the fastening portions through the L-shaped fastening portions, the printed circuit board 30 is limited in the width direction on the bottom plate, is limited in the thickness direction of the bottom plate, and can only move in the length direction of the bottom plate.
Example three:
as shown in fig. 7, as a third embodiment of the present application, a display device 10 is disclosed, where the display device 10 is different from the above embodiments in that a display panel is a dual-layer display panel, and correspondingly, the display panel includes a first display panel 21 and a second display panel 22, the printed circuit board includes a first printed circuit board 34 and a second printed circuit board 35, the display device 10 further includes a first flexible circuit board 41 and a second flexible circuit board 42, where the first display panel 21 and the second display panel 22 are fully attached and bonded, the first printed circuit board 34 is bound on the first display panel 21 through the first flexible circuit board 41, and the second printed circuit board 35 is bound on the second display panel 22 through the second flexible circuit board 42; the display panel is a double-layer display panel, the two display panels are completely laminated through OCA (optically Clear adhesive) optical cement 23, and the OCA optical cement has the characteristics of colorless transparency, light transmittance of over 90 percent, good cementing strength, capability of being cured at room temperature or intermediate temperature, small curing shrinkage and the like; therefore, glare and loss of emitted light can be reduced by using the OCA optical cement, and higher transmittance is provided, thereby increasing the brightness of the display panel. The two display panels respectively have two sets of driving modules, but share one set of backlight module, generally, the first printed circuit board 34 and the second printed circuit board 35 are stacked, and the fixing connector 130 fixes the first printed circuit board 34 and the second printed circuit board 35 at the same time. Specifically, the fixing connector 130 includes a fixing member 140 and a connector 150, the fixing member 140 includes a double-sided tape, and the connector 150 includes a protrusion structure, the protrusion structure is disposed corresponding to the copper leakage area of the first printed circuit board 34 and electrically connected to the copper leakage area of the first printed circuit board 34; the second printed circuit board 35 is connected to the first printed circuit board 34 through a conductive foam 135.
The first printed circuit board 34 is closer to the back plate 110 than the second printed circuit board 35, the first printed circuit board 34 is fixed on the back plate 110 through a double-sided tape, the second printed circuit board 35 is fixed on the first printed circuit board 34 through the conductive foam 135, the second printed circuit board 35 is conductively connected with the copper leakage area of the first printed circuit board 34 through the conductive foam 135, the protruding structure on the back plate 110 is conductively connected with the copper leakage area of the first printed circuit board 34, and therefore the first printed circuit board 34 and the second printed circuit board 35 are both grounded.
As shown in fig. 8, based on the modification of fig. 7, a second display device 10 of the third embodiment is disclosed, and the other structures are the same as the embodiment of fig. 7, except that the fixed connecting member 130 is different, specifically, the fixed connecting member 130 includes a fastening structure 131, the fastening structure 131 is fixed on the back plate 110, the fastening structure 131 includes a bottom plate 132 and two clamping portions 133, the two clamping portions 133 are correspondingly disposed on two sides of the bottom plate 132, and the bottom plate 132 is detachably fixed on the back plate 110; the first printed circuit board 34 and the second printed circuit board 35 are stacked on the bottom plate 132, and the two clamping portions 133 fix the first printed circuit board 34 and the second printed circuit board 35; the second printed circuit board 35 and the first printed circuit board 34 are fixed by rubber; the copper leakage area of the first printed circuit board 34 is electrically connected to any one of the clamping portions 133, the copper leakage area of the first printed circuit board 34 is electrically connected to the bottom plate 132, and the fastening structure 131 is grounded through the back plate 110. The shape of the snap structure 131 is the same as that of the snap structure 131 of the second embodiment, and the thickness of the snap structure 131 is larger than that of the snap structure 131 of the second embodiment, because the snap structure 131 needs to fix two printed circuit boards. Because two printed circuit board if switch on through the electrically conductive bubble is cotton, the thickness space that occupies is great, through setting up the fixed printed circuit board of buckle structure 131, simple structure, it is with low costs.
As shown in fig. 9, based on the second modification of fig. 7, a third display device 10 of the third embodiment is disclosed, and the other structures are the same as those of the embodiment of fig. 7, except that a fixed connecting member 130 is different, specifically, the fixed connecting member 130 includes a snap structure 131, the snap structure 131 is fixed on the back plate 110, the snap structure 131 includes a bottom plate 132, two snap portions 133 and a partition, the two snap portions 133 are correspondingly disposed on two sides of the bottom plate 132, and the bottom plate 132 is detachably fixed on the back plate 110; the first printed circuit board 34 and the second printed circuit board 35 are stacked on the base plate 132, and the spacer is disposed between the second printed circuit board 35 and the first printed circuit board 34; the copper leakage area of the first printed circuit board 34 is electrically connected to the bottom board 132, and the copper leakage area of the second printed circuit board 35 is electrically connected to the clamping portion 133; the snap structure 131 is grounded through the back plate 110. Specifically, this baffle is parallel with bottom plate 132, has a clearance between two joint portion 133 correspond, and the baffle corresponds and sets up the fretwork in the clearance, and the ancient board both ends are through fixing on two joint portion 133. The double-layer arrangement can separate the first printed circuit board 34 and the second printed circuit board 35 through the partition plate, and the copper leakage area is arranged at the position where the corresponding first printed circuit board 34 and the corresponding second printed circuit board 35 are contacted with the buckle structure 131. One fixing member 140 may fix two printed circuit boards at the same time.
As shown in fig. 10, based on the third modification of fig. 7, a fourth display device 10 according to a third embodiment is disclosed, which is different in that the first printed circuit board 34 and the second printed circuit board 35 do not overlap in projection on the back plate 110, and the first printed circuit board 34 and the second printed circuit board 35 are disposed in a staggered manner. And the first printed circuit board 34 and the second printed circuit board 35 employ different fixed connectors 130. The first printed circuit board 34 and the second printed circuit board 35 are arranged in a staggered manner in the width direction of the first printed circuit board 34, so that the first printed circuit board 34 and the second printed circuit board 35 are prevented from interfering with each other; the two printed circuit boards are not overlapped and attached together, correspondingly, the wiring and the electrical element on the printed circuit boards are not attached together, short circuit caused by attachment of the wiring or the electrical element is avoided, or the problem that the temperature is too high due to the fact that heat generated by the circuit boards is accumulated and cannot be effectively dissipated is also avoided, and the quality of products is guaranteed.
Specifically, the fixing connector 130 includes a double-sided tape, a protruding structure and a snap structure 131, and a distance between the first printed circuit board 34 and the edge of the back plate 110 is smaller than a distance between the second printed circuit board 35 and the edge of the back plate 110; the protruding structure is arranged corresponding to the copper leakage area of the first printed circuit board 34 and electrically connected with the copper leakage area of the first printed circuit board 34; the double-sided adhesive tape is arranged corresponding to the first printed circuit board 34 and fixes the first printed circuit board 34; the fastening structure 131 comprises a bottom plate 132 and two fastening portions 133, the two fastening portions 133 are correspondingly arranged on two sides of the bottom plate 132, and the bottom plate 132 is detachably fixed on the back plate 110; the copper leakage area of the printed circuit board is electrically connected with any one of the clamping parts 133, and the clamping structure 131 is grounded through the back plate 110. The length of the second flexible circuit board 42 is greater than the length of the first flexible circuit board 41, and in this embodiment, the first flexible circuit board 41 and the second flexible circuit board 42 may be disposed in a staggered manner, so as to prevent the interference problem between chips on the flexible circuit boards.
In this embodiment, the first display panel 21 and the second display panel 22 may be of the same type, for example, the first display panel 21 and the second display panel 22 are both UD (Ultra High Definition) panels, or the first display panel 21 and the second display panel 22 are both FHD (Full High Definition) panels. Of course, it is also possible that the first display panel 21 and the second display panel 22 are two different types of display panels. Of course, the second embodiment of the present application may also adopt a design of a dual-layer display panel, which is not described herein. The inventive concepts of the present application can form many embodiments, but the disclosure of the application is limited and cannot be listed one by one, so that on the premise of no conflict, the above-described embodiments or technical features can be combined arbitrarily to form new embodiments, for example, the direct type backlight module and the side type backlight module, the fastening structure 131, the double-sided tape and the protrusion structure can be applied to different embodiments, and after the embodiments or technical features are combined, the original technical effects can be enhanced
The technical solution of the present application can be widely applied to various display panels, such as TN (Twisted Nematic) display panel, IPS (In-Plane Switching) display panel, VA (Vertical Alignment) display panel, MVA (Multi-Domain Vertical Alignment) display panel, and of course, other types of display panels, such as OLED (Organic Light-Emitting Diode) display panel, and the above solution can be applied thereto.
The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the specific implementations of the present application are not to be considered limited to these descriptions. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (10)
1. A display device, comprising: the display device comprises a display panel, a printed circuit board and a backlight module; the printed circuit board is electrically connected with an internal circuit of the display panel; the backlight module comprises a back plate; it is characterized in that the preparation method is characterized in that,
the back plate is provided with a fixed connecting piece, the fixed connecting piece is used for fixing the printed circuit board and is electrically connected with a copper leakage area of the printed circuit board, and the back plate is grounded.
2. The display device according to claim 1, wherein the fixing connector comprises a buckle structure, the buckle structure is fixed on the back plate, the buckle structure comprises a bottom plate and two clamping portions, the two clamping portions are correspondingly arranged on two sides of the bottom plate, and the bottom plate is detachably fixed on the back plate; the copper leakage area of the printed circuit board is correspondingly electrically connected with any one of the clamping parts, and the clamping structure is grounded through the back plate.
3. The display device according to claim 1, wherein the fixing connector comprises a fixing member and a connecting member, the fixing member comprises a double-sided tape, the connecting member comprises a protrusion structure, and the protrusion structure is disposed corresponding to and electrically connected to the copper leakage region of the printed circuit board;
the printed circuit board is characterized in that one surface provided with components is a front surface, the front surface of the printed circuit board is deviated from the back plate, the back surface of the printed circuit board faces the shell assembly, and the copper leakage area of the printed circuit board is arranged on the back surface of the printed circuit board; the back surface of the printed circuit board is adhered to the back plate through the double-sided adhesive tape.
4. The display device according to claim 1, wherein the fixing connector comprises a fixing member and a connecting member, the fixing member comprises an insulating clip, the connecting member comprises a protruding structure, the insulating clip is used for fixing the printed circuit board, the protruding structure is disposed corresponding to and electrically connected to a copper leakage area of the printed circuit board, and a projection of the insulating clip and the protruding structure on the back plate is not coincident.
5. The display device according to claim 1, wherein the display panel comprises a first display panel and a second display panel, the printed circuit board comprises a first printed circuit board and a second printed circuit board, the display device further comprises a first flexible circuit board and a second flexible circuit board, wherein the first display panel is bonded to the second display panel in a full-lamination manner, the first printed circuit board is bound to the first display panel through the first flexible circuit board, and the second printed circuit board is bound to the second display panel through the second flexible circuit board; the fixing connector fixes the first printed circuit board and the second printed circuit board at the same time.
6. The display device according to claim 5, wherein the fixing connector comprises a fixing member and a connecting member, the fixing member comprises a double-sided tape, the connecting member comprises a protrusion structure, and the protrusion structure is disposed corresponding to the copper leakage region of the first printed circuit board and electrically connected to the copper leakage region of the first printed circuit board;
the second printed circuit board is connected with the first printed circuit board through conductive foam.
7. The display device according to claim 5, wherein the fixing connector comprises a buckle structure, the buckle structure is fixed on the back plate, the buckle structure comprises a bottom plate and two clamping portions, the two clamping portions are correspondingly arranged on two sides of the bottom plate, and the bottom plate is detachably fixed on the back plate;
the first printed circuit board and the second printed circuit board are stacked on the bottom plate, and the two clamping parts fix the first printed circuit board and the second printed circuit board;
the second printed circuit board and the first printed circuit board are fixed through rubber; the copper leakage area of the first printed circuit board is correspondingly and electrically connected with any one of the clamping parts, the copper leakage area of the first printed circuit board is correspondingly and electrically connected with the bottom plate, and the clamping structure is grounded through the back plate.
8. The display device according to claim 5, wherein the fixing connector comprises a buckle structure, the buckle structure is fixed on the back plate, the buckle structure comprises a bottom plate, two clamping portions and a partition plate, the two clamping portions are correspondingly arranged on two sides of the bottom plate, and the bottom plate is detachably fixed on the back plate;
the first printed circuit board and the second printed circuit board are stacked and arranged on the bottom plate, and the partition plate is arranged between the second printed circuit board and the first printed circuit board;
the copper leakage area of the first printed circuit board is correspondingly and electrically connected with the bottom plate, and the copper leakage area of the second printed circuit board is correspondingly and electrically connected with the clamping part; the buckle structure is grounded through the back plate.
9. The display device according to claim 5, wherein the first printed circuit board and the second printed circuit board do not overlap in projection on the back plate, and the first printed circuit board and the second printed circuit board are disposed in a staggered manner.
10. The display device according to claim 9, wherein the fixing connector comprises a double-sided adhesive tape, a protrusion structure and a snap structure, and a distance between the first printed circuit board and the edge of the back plate is smaller than a distance between the second printed circuit board and the edge of the back plate;
the protruding structure is arranged corresponding to the copper leakage area of the first printed circuit board and is electrically connected with the copper leakage area of the first printed circuit board; the double-sided adhesive tape is arranged corresponding to the first printed circuit board and fixes the first printed circuit board;
the buckle structure comprises a bottom plate and two clamping parts, the two clamping parts are correspondingly arranged on two sides of the bottom plate, and the bottom plate is detachably fixed on the back plate; the copper leakage area of the printed circuit board is correspondingly electrically connected with any one of the clamping parts, and the clamping structure is grounded through the back plate.
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| CN202110836082.3A CN113570969B (en) | 2021-07-23 | 2021-07-23 | Display device |
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| CN202110836082.3A CN113570969B (en) | 2021-07-23 | 2021-07-23 | Display device |
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| CN113570969B CN113570969B (en) | 2022-07-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023159490A1 (en) * | 2022-02-25 | 2023-08-31 | 京东方科技集团股份有限公司 | Vehicle-mounted display device |
| CN116863832A (en) * | 2023-09-05 | 2023-10-10 | 惠科股份有限公司 | Backlight module and display device |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060181841A1 (en) * | 2005-02-11 | 2006-08-17 | Research In Motion Limited | Frame for a device mounted above a printed circuit board in an electronic device |
| CN101080134A (en) * | 2006-05-26 | 2007-11-28 | 三星电子株式会社 | Printed circuit board for flat panel display, flat panel display having the same, and method thereof |
| TW200903076A (en) * | 2007-07-03 | 2009-01-16 | Chi Mei Optoelectronics Corp | Liquid crystal display |
| CN101667373A (en) * | 2009-09-28 | 2010-03-10 | 友达光电(厦门)有限公司 | Display device |
| CN102384443A (en) * | 2011-11-18 | 2012-03-21 | 深圳市华星光电技术有限公司 | Back plate, backlight module group and liquid crystal display device |
| CN102918943A (en) * | 2010-06-03 | 2013-02-06 | 莱尔德技术股份有限公司 | Board level electromagnetic interference (EMI) shields with through hole latching mechanisms |
| CN202794769U (en) * | 2012-09-06 | 2013-03-13 | 昆山龙腾光电有限公司 | Liquid crystal module |
| US20130329353A1 (en) * | 2012-06-08 | 2013-12-12 | David Alan Savory | Esd discharge path on chasis-mounted pcb assembly |
| CN103605236A (en) * | 2013-11-05 | 2014-02-26 | 深圳市华星光电技术有限公司 | Two-sided display device and backlight module thereof |
| CN105120628A (en) * | 2015-07-06 | 2015-12-02 | 达运精密工业股份有限公司 | Circuit board fixing structure and display device with same |
| CN107507514A (en) * | 2017-10-12 | 2017-12-22 | 惠科股份有限公司 | A kind of display device |
| CN107643635A (en) * | 2017-09-27 | 2018-01-30 | 惠科股份有限公司 | Display device and its earthing or grounding means |
| CN207230470U (en) * | 2017-08-16 | 2018-04-13 | 合肥惠科金扬科技有限公司 | PCB fixed structures and backlight module |
| US20180157091A1 (en) * | 2016-12-05 | 2018-06-07 | Samsung Display Co., Ltd. | Display device having a protection member |
| CN208027036U (en) * | 2018-02-01 | 2018-10-30 | 昆山龙腾光电有限公司 | A kind of display device |
| CN209132555U (en) * | 2018-12-03 | 2019-07-19 | 昆山龙腾光电有限公司 | A kind of backlight module and liquid crystal display device |
| CN110072331A (en) * | 2019-05-10 | 2019-07-30 | Oppo广东移动通信有限公司 | A kind of bonding structure and terminal device |
| US20200375020A1 (en) * | 2019-05-23 | 2020-11-26 | Samsung Electronics Co., Ltd. | Electronic device including connection structure for electrically connecting printed circuit board and housing |
| CN112162423A (en) * | 2020-09-14 | 2021-01-01 | 惠科股份有限公司 | Double-layer display module and display device |
| CN212873936U (en) * | 2020-07-31 | 2021-04-02 | 北海惠科光电技术有限公司 | Display module assembly and display device |
-
2021
- 2021-07-23 CN CN202110836082.3A patent/CN113570969B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060181841A1 (en) * | 2005-02-11 | 2006-08-17 | Research In Motion Limited | Frame for a device mounted above a printed circuit board in an electronic device |
| CN101080134A (en) * | 2006-05-26 | 2007-11-28 | 三星电子株式会社 | Printed circuit board for flat panel display, flat panel display having the same, and method thereof |
| TW200903076A (en) * | 2007-07-03 | 2009-01-16 | Chi Mei Optoelectronics Corp | Liquid crystal display |
| CN101667373A (en) * | 2009-09-28 | 2010-03-10 | 友达光电(厦门)有限公司 | Display device |
| CN102918943A (en) * | 2010-06-03 | 2013-02-06 | 莱尔德技术股份有限公司 | Board level electromagnetic interference (EMI) shields with through hole latching mechanisms |
| CN102384443A (en) * | 2011-11-18 | 2012-03-21 | 深圳市华星光电技术有限公司 | Back plate, backlight module group and liquid crystal display device |
| US20130329353A1 (en) * | 2012-06-08 | 2013-12-12 | David Alan Savory | Esd discharge path on chasis-mounted pcb assembly |
| CN202794769U (en) * | 2012-09-06 | 2013-03-13 | 昆山龙腾光电有限公司 | Liquid crystal module |
| CN103605236A (en) * | 2013-11-05 | 2014-02-26 | 深圳市华星光电技术有限公司 | Two-sided display device and backlight module thereof |
| CN105120628A (en) * | 2015-07-06 | 2015-12-02 | 达运精密工业股份有限公司 | Circuit board fixing structure and display device with same |
| US20180157091A1 (en) * | 2016-12-05 | 2018-06-07 | Samsung Display Co., Ltd. | Display device having a protection member |
| CN207230470U (en) * | 2017-08-16 | 2018-04-13 | 合肥惠科金扬科技有限公司 | PCB fixed structures and backlight module |
| CN107643635A (en) * | 2017-09-27 | 2018-01-30 | 惠科股份有限公司 | Display device and its earthing or grounding means |
| CN107507514A (en) * | 2017-10-12 | 2017-12-22 | 惠科股份有限公司 | A kind of display device |
| CN208027036U (en) * | 2018-02-01 | 2018-10-30 | 昆山龙腾光电有限公司 | A kind of display device |
| CN209132555U (en) * | 2018-12-03 | 2019-07-19 | 昆山龙腾光电有限公司 | A kind of backlight module and liquid crystal display device |
| CN110072331A (en) * | 2019-05-10 | 2019-07-30 | Oppo广东移动通信有限公司 | A kind of bonding structure and terminal device |
| US20200375020A1 (en) * | 2019-05-23 | 2020-11-26 | Samsung Electronics Co., Ltd. | Electronic device including connection structure for electrically connecting printed circuit board and housing |
| CN212873936U (en) * | 2020-07-31 | 2021-04-02 | 北海惠科光电技术有限公司 | Display module assembly and display device |
| CN112162423A (en) * | 2020-09-14 | 2021-01-01 | 惠科股份有限公司 | Double-layer display module and display device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023159490A1 (en) * | 2022-02-25 | 2023-08-31 | 京东方科技集团股份有限公司 | Vehicle-mounted display device |
| CN116863832A (en) * | 2023-09-05 | 2023-10-10 | 惠科股份有限公司 | Backlight module and display device |
| CN116863832B (en) * | 2023-09-05 | 2024-01-12 | 惠科股份有限公司 | Backlight module and display device |
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| Publication number | Publication date |
|---|---|
| CN113570969B (en) | 2022-07-08 |
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