CN218068511U - Display device - Google Patents
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- CN218068511U CN218068511U CN202222367840.4U CN202222367840U CN218068511U CN 218068511 U CN218068511 U CN 218068511U CN 202222367840 U CN202222367840 U CN 202222367840U CN 218068511 U CN218068511 U CN 218068511U
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- circuit board
- display panel
- display
- hard circuit
- display device
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- 239000000758 substrate Substances 0.000 claims description 22
- 239000004973 liquid crystal related substance Substances 0.000 claims description 17
- 238000005034 decoration Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 210000002858 crystal cell Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a display device. The display device includes: display panel, backlight unit, first flexible circuit board, second flexible circuit board and stereoplasm circuit board. The backlight module is positioned on the back of the display panel and is of a direct type; the display panel comprises a first flexible circuit board, a second flexible circuit board and a hard circuit board, wherein the first flexible circuit board is connected between the display panel and the hard circuit board, and the second flexible circuit board is connected between the backlight module and the hard circuit board; the hard circuit board is provided with a first driving chip for driving the display panel and a second driving chip for driving the backlight module, and the hard circuit board is attached to the back of the display panel. The utility model discloses with the attached back in display panel of stereoplasm circuit board, effectively reduced the width of display module assembly's frame.
Description
Technical Field
The utility model relates to a liquid crystal display technology field especially relates to a display device.
Background
Liquid crystal display panels have many advantages such as low power consumption, light weight, low radiation, etc., and thus have been used to replace conventional Cathode Ray Tube (CRT) displays. Liquid crystal display panels are widely used in electronic devices such as high definition digital televisions, desktop computers, notebook computers, tablet computers, mobile phones, digital cameras, and the like. However, with the development of display technology, the demand for display devices is higher and higher, for example, the display devices are required to have narrower frames.
Fig. 1 is a schematic structural diagram of a display device of a flat architecture provided in the prior art, and as shown in fig. 1, in a liquid crystal display panel adopting a backlight module of a flat architecture, at least a certain assembly tolerance d needs to be reserved between a hard circuit board 01 and an edge of a liquid crystal cell 02. Therefore, when designing the frame of the display device, not only the width of the hard circuit board 01 itself but also the assembly tolerance needs to be considered, and the frame width of the display device is increased. Further, if display device adopts Mini LED backlight unit, except being provided with the display module component on the rigid circuit board 01, still newly-increased chip, the power module and the multiple lamp board connector that have set up drive backlight unit, lead to rigid circuit board 01's width further increase to make display module's frame width surpass rule, thereby cause current display device to have the great problem of frame.
SUMMERY OF THE UTILITY MODEL
The utility model provides a display device to solve because stereoplasm circuit board width increases, make the problem that display module assembly's frame width exceeds the rule.
According to an aspect of the utility model, a display device is provided, include:
a display panel;
the backlight module is positioned on the back surface of the display panel and is of a direct type;
the backlight module comprises a first flexible circuit board, a second flexible circuit board and a hard circuit board, wherein the first flexible circuit board is connected between the display panel and the hard circuit board, and the second flexible circuit board is connected between the backlight module and the hard circuit board; the display panel is characterized in that a first driving chip for driving the display panel and a second driving chip for driving the backlight module are arranged on the hard circuit board, and the hard circuit board is attached to the back of the display panel.
Optionally, the display panel includes a display area and a frame area, the backlight module is disposed at a position corresponding to the display area, and the hard circuit board is attached to a position corresponding to the frame area.
Optionally, a reserved interval is arranged between the backlight module and the hard circuit board.
Optionally, the reserved interval ranges from 0.45mm to 0.6mm.
Optionally, a partial area of the hard circuit board is located in the bezel area, and another partial area of the hard circuit board protrudes out of the display panel.
Optionally, the width of the frame area ranges from 4mm to 6mm, and the width of the hard circuit board protruding out of the display panel is within 10mm.
Optionally, the method further comprises:
the supporting structure is positioned on the back face of the display panel, and the hard circuit board is attached to the supporting structure.
Optionally, a slot is formed in the support structure, and the slot accommodates the second flexible circuit board.
Optionally, the rigid circuit board is a single-sided decoration or a double-sided decoration.
Optionally, the display panel includes an array substrate, a liquid crystal layer, and a color film substrate, which are stacked; the liquid crystal layer and the color film substrate form a display area of the display panel; one end of the first flexible circuit board is connected with the position, located in the frame area, of the array substrate, and the other end of the first flexible circuit board is connected with the hard circuit board.
The technical scheme of the embodiment of the utility model is suitable for a Mini LED backlight module, and the connection between the display panel and the hard circuit board is realized by arranging the first flexible circuit board; the backlight module is connected with the hard circuit board by arranging the second flexible circuit board; thereby realized more meticulous control to backlight unit, promoted display device's display effect. Through adopting straight following formula backlight unit, avoid backlight unit when being favorable to attaching stereoplasm circuit board in the back of display panel to can reduce the thickness of stereoplasm circuit board and display panel overlapping back display module. And the hard circuit board is overlapped with the display panel, so that the width of the hard circuit board extending out of the display panel is reduced, and the width of a frame area of the display module is effectively reduced. To sum up, the embodiment of the utility model provides a can compromise display device's display effect, thickness and frame width, have excellent practicality.
It should be understood that the statements herein are not intended to identify key or critical features of any embodiment of the present invention, nor are they intended to limit the scope of the invention. Other features of the present invention will be readily apparent from the following specification.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flat-structured display device provided in the prior art;
fig. 2 is a schematic top view of a display device according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a display device according to an embodiment of the present invention;
fig. 4 is a schematic top view of a display device according to an embodiment of the present invention.
In the figure:
01-hard circuit board;
02-a liquid crystal cell;
d-assembly tolerances;
d 1-reserving intervals;
10-a display panel;
11-an array substrate;
12-a liquid crystal layer;
13-a color film substrate;
20-a backlight module;
30-a first flexible circuit board;
40-a rigid circuit board;
41-a first driver chip;
42-a second driver chip;
50-a support structure;
AA-display area;
NA-frame region;
51-slotted hole.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
An embodiment of the utility model provides a display device is applicable to the flat framework. Fig. 2 is a schematic top view diagram of a display device provided in an embodiment of the present invention, and fig. 3 is a schematic cross-sectional diagram of a display device provided in an embodiment of the present invention, referring to fig. 2 and fig. 3, the display device includes: the display device comprises a display panel 10, a backlight module 20, a first flexible circuit board 30, a second flexible circuit board and a hard circuit board 40.
The backlight module 20 is disposed on the back of the display panel 10, and the backlight module 20 is a direct type. The first flexible circuit board 30 is connected between the display panel 10 and the hard circuit board 40, and the second flexible circuit board is connected between the backlight module 20 and the hard circuit board 40; the hard circuit board 40 is provided with a first driving chip 41 for driving the display panel 10 and a second driving chip 42 for driving the backlight module 20, and the hard circuit board 40 is attached to the back of the display panel 10.
Specifically, the direct-type backlight module 20 is used as a backlight source of the display device, and the backlight module 20 is disposed on the back of the display panel 10, and the hard circuit board 40 can be directly attached to the back of the display panel 10 without occupying a frame area of the display panel 10. For the scheme of using the oblique-insertion type light bar, the oblique-insertion type light bar needs to be disposed in the frame region of the display panel 10, and accordingly, the hard circuit board 40 needs to be attached to the oblique-insertion type light bar, resulting in a larger thickness of the display device. Therefore, the embodiment of the present invention employs the direct type backlight module 20 to reduce the thickness of the display device. The hard circuit board 40 is attached to the back of the display panel 10, that is, there is an overlapping portion between the hard circuit board 40 and the display panel 10, so that the width of the portion of the hard circuit board 40 extending out of the display panel 10 is reduced, thereby reducing the width of the display module.
The hard circuit board 40 is provided with at least one first driver chip 41 and at least one second driver chip 42. The first driving chip 41 is a chip that controls the display panel 10 to perform display; the second driving chip 42 is a chip for controlling the backlight module 20 to emit light. The second flexible circuit board is arranged to realize that the second driving chip 42 on the hard circuit board 40 transmits a driving signal to the backlight module 20, so that the second driving chip 42 can perform finer brightness control on the Mini LED backlight module. The first driving chip 41 on the hard circuit board 40 sends a driving signal to the display panel 10 through the first flexible circuit board 30, so that the display module achieves a good display effect. It can be understood that the obliquely inserted light bar is adopted in the prior art, and the second driving chip 42 is not required to be additionally arranged. Therefore, compared with the prior art, the embodiment of the present invention provides a rigid circuit board 40 with increased width. Through setting up there is the part of overlap between stereoplasm circuit board 40 and the display panel 10, be favorable to offsetting the problem that the stereoplasm circuit board 40 width that brings because of addding second driver chip 42 increases to on the basis that satisfies current module specification, addding second driver chip 42 and realizing the more meticulous control to backlight unit 20, promote display device's display effect.
The technical scheme of the embodiment is suitable for a Mini LED backlight module, and the display panel 10 is connected with the hard circuit board 40 by arranging the first flexible circuit board 30; the connection between the backlight module 20 and the hard circuit board 40 is realized by arranging the second flexible circuit board; thereby realized more meticulous control to backlight unit 20, promoted display device's display effect. By adopting the direct type backlight module 20, the hard circuit board 40 is favorably attached to the back surface of the display panel 10 and kept away from the backlight module 20, so that the thickness of the display module after the hard circuit board 40 is overlapped with the display panel 10 can be reduced. And the hard circuit board 40 is overlapped with the display panel 10, so that the width of the part of the hard circuit board 40 extending out of the display panel 10 is reduced, and the width of the frame area of the display module is effectively reduced. To sum up, the embodiment of the utility model provides a can compromise display device's display effect, thickness and frame width, have excellent practicality.
Optionally, on the basis of the above embodiment, with reference to fig. 2 and fig. 3, the display panel 10 includes a display area AA and a frame area NA, the backlight module 20 is disposed at a position corresponding to the display area AA, and the hard circuit board 40 is attached to a position corresponding to the frame area NA.
The direct-type backlight module 20 is disposed at a position corresponding to the display area AA on the back of the display panel 10, and when the backlight module 20 emits light, the corresponding position of the display area AA in the display panel 10 is lighted up, so that the display panel 10 has a good display effect. Specifically, a partial area of the hard circuit board 40 is located in the bezel area NA, and another partial area of the hard circuit board 40 protrudes from the display panel 10. A portion of the hard circuit board 40 is attached to the frame area NA, so that the display effect of the display panel 10 is not affected, and a portion of the wide hard circuit board 40 protrudes from the display panel 10, thereby reducing the width of the frame area NA of the display module.
Preferably, the width of the frame area NA ranges from 4mm to 6mm, and the width of the hard circuit board 40 protruding from the display panel 10 is within 10mm. By the arrangement, the process requirement of the conventional flat framework can be met. Specifically, the width of the hard circuit board 40 of the flat structure in the Mini LED display module is at least 15mm, and the upper limit of the width of the hard circuit board 40 meeting the requirement is 10mm. Therefore, the frame area NA of the display panel 10 is set according to the above size, and the hard circuit board 40 is attached to the frame area NA, so that the width of the hard circuit board 40 extending out of the display panel 10 is less than 10mm, and the requirement that the width of the display module is not more than 10mm can be met.
Optionally, on the basis of the foregoing embodiments, a reserved interval d1 is provided between the backlight module 20 and the hard circuit board 40, and the range of the reserved interval d1 is 0.45mm to 0.6mm.
Specifically, the reserved interval d1 is an assembly tolerance reserved when the hard circuit board 40 and the backlight module 20 are assembled, that is, an allowable variation amount during assembly, so that the assembly safety is ensured when the hard circuit board 40 is assembled on the backlight module 20, and the yield of the prepared display module is improved. The reserved interval d1 needs to be controlled within a certain range, and if the reserved interval d1 is set to be too large, although the safety of the hard circuit board 40 assembled on the backlight module 20 is ensured, the width of the display module is increased, and the width of the display module exceeds a specified value. If the reserved interval d1 is too small, the safety of the assembly of the hard circuit board 40 and the backlight module 20 cannot be ensured. Preferably, the size of the reserved interval d1 is suitably selected in the size range of 0.45mm-0.6mm.
Optionally, on the basis of the foregoing embodiments, with reference to fig. 3, the display panel 10 includes an array substrate 11, a liquid crystal layer 12, and a color filter substrate 13 that are stacked; the liquid crystal layer 12 and the color film substrate 13 form a display area AA of the display panel 10; one end of the first flexible circuit board 30 is connected to the array substrate 11 at the position of the frame area NA, and the other end of the first flexible circuit board 30 is connected to the hard circuit board 40.
Specifically, the display area AA of the display panel 10 is composed of an array substrate 11, a liquid crystal layer 12 and a color film substrate 13, and when the first driving chip 41 disposed on the hard circuit board 40 outputs a driving signal to the array substrate 11 of the display panel 10 through the first flexible circuit board 30, an electric field formed by the array substrate 11 controls liquid crystal molecules in the liquid crystal layer 12 to twist in different degrees, so that white light rays emitted by the backlight module 20 have different brightness. After the white light rays with different brightness are emitted from the liquid crystal layer 12, the white light rays with different brightness and different colors are emitted through the color film substrate 13, so that the display panel 10 can display corresponding character patterns.
One end of the first flexible circuit board 30 is connected to the frame area NA of the array substrate 11, so that the display area AA of the array substrate 11 is not shielded, thereby ensuring that the display module has a good display effect.
Optionally, fig. 4 is a schematic top view structure diagram of another display device according to an embodiment of the present invention, and on the basis of the foregoing embodiments, as shown in fig. 4, the display device further includes: a support structure 50. The supporting structure 50 is located on the back of the display panel 10, and the hard circuit board 40 is attached to the supporting structure 50.
Specifically, a supporting structure 50 is disposed on the back of the frame region of the display panel 10, and the supporting structure 50 is attached to the hard circuit board 40, so that the hard circuit board 40 is fixed to the back of the display panel 10 through the supporting structure 50.
Alternatively, on the basis of the above embodiment, with continued reference to fig. 4, the supporting structure 50 is provided with a slot 51, and the slot 51 receives the second flexible circuit board 31.
Specifically, fig. 4 shows the position where the second flexible circuit board 31 is disposed, and the supporting structure 50 disposed on the back surface of the display panel 10 has at least one slot 51, and the slot 51 is used for accommodating the second flexible circuit board 31. The second flexible circuit board 31 is connected with the slot 51 in an inserting manner, so that when the backlight module 20 of the display module fails, the backlight module 20 can be replaced conveniently without affecting the normal operation of the display module. Through the arrangement of the slot 51, the supporting structure 50 and the second flexible circuit board 31 are alternately arranged in the same plane, so that the thickness of the display module after the hard circuit board 40 is attached to the display panel 10 is reduced, and the structure of the display module is simpler. Fig. 4 shows a case where 4 slots 51 are provided on the supporting structure 50, and a plurality of slots 51 are provided to connect a plurality of second flexible circuit boards 31, so that the metal lines connected to the second driving chips 42 on the rigid circuit board 40 can be simplified.
Optionally, on the basis of the above embodiments, the rigid circuit board 40 is a single-sided ornament or a double-sided ornament.
Specifically, the single-sided hard circuit board 40 is a single-sided hard circuit board, and only one side of the hard circuit board has metal traces and is soldered with the first driving chip 41 and the second driving chip 42, and the other side is a substrate or is directly covered by an insulating ink. The double-sided hard circuit board 40 is a double-sided hard circuit board, both sides of the hard circuit board 40 have metal lines, and the first driving chip 41 and the second driving chip 42 can be welded on any surface of the double-sided hard circuit board 40. The hard circuit board 40 used in this embodiment may be a single-sided swing piece, and may also be a double-sided swing piece, which is not limited herein. Preferably, the rigid circuit board 40 is a double-sided ornament, which reduces the width of the rigid circuit board 40.
The technical scheme of the embodiment of the utility model is suitable for a Mini LED backlight module, and the connection between the display panel and the hard circuit board is realized by arranging the first flexible circuit board; the backlight module is connected with the hard circuit board by arranging the second flexible circuit board; thereby realized more meticulous control to backlight unit, promoted display device's display effect. Through adopting straight following formula backlight unit, avoid backlight unit when being favorable to attaching stereoplasm circuit board in the back of display panel to can reduce the thickness of stereoplasm circuit board and display panel overlapping back display module. And the hard circuit board is overlapped with the display panel, so that the width of the hard circuit board extending out of the display panel is reduced, and the width of a frame area of the display module is effectively reduced. To sum up, the embodiment of the utility model provides a can compromise display device's display effect, thickness and frame width, have excellent practicality.
The above detailed description does not limit the scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made, depending on design requirements and other factors. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A display device, comprising:
a display panel;
the backlight module is positioned on the back surface of the display panel and is of a direct type;
the backlight module comprises a first flexible circuit board, a second flexible circuit board and a hard circuit board, wherein the first flexible circuit board is connected between the display panel and the hard circuit board, and the second flexible circuit board is connected between the backlight module and the hard circuit board; the display panel is characterized in that a first driving chip for driving the display panel and a second driving chip for driving the backlight module are arranged on the hard circuit board, and the hard circuit board is attached to the back of the display panel.
2. The display device according to claim 1, wherein the display panel comprises a display area and a frame area, the backlight module is disposed at a position corresponding to the display area, and the hard circuit board is attached to a position corresponding to the frame area.
3. The display device according to claim 2, wherein a predetermined space is provided between the backlight module and the hard circuit board.
4. A display device as claimed in claim 3, characterised in that the reserved interval is in the range 0.45-0.6 mm.
5. The display device according to claim 2, wherein a partial region of the hard circuit board is located in the bezel region, and another partial region of the hard circuit board protrudes from the display panel.
6. The display device according to claim 5, wherein the width of the frame area is in a range of 4mm to 6mm, and the width of the hard circuit board protruding from the display panel is within 10mm.
7. The display device according to claim 1, further comprising:
the supporting structure is positioned on the back face of the display panel, and the hard circuit board is attached to the supporting structure.
8. The display device according to claim 7, wherein the support structure is provided with a slot, and the slot receives the second flexible circuit board.
9. The display device as claimed in any one of claims 1 to 8, wherein the rigid circuit board is a single-sided or double-sided decoration.
10. The display device according to any one of claims 1 to 8, wherein the display panel comprises an array substrate, a liquid crystal layer and a color film substrate which are arranged in a stacked manner; the liquid crystal layer and the color film substrate form a display area of the display panel; one end of the first flexible circuit board is connected with the position, located in the frame area, of the array substrate, and the other end of the first flexible circuit board is connected with the hard circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222367840.4U CN218068511U (en) | 2022-09-06 | 2022-09-06 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222367840.4U CN218068511U (en) | 2022-09-06 | 2022-09-06 | Display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218068511U true CN218068511U (en) | 2022-12-16 |
Family
ID=84408080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222367840.4U Active CN218068511U (en) | 2022-09-06 | 2022-09-06 | Display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218068511U (en) |
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2022
- 2022-09-06 CN CN202222367840.4U patent/CN218068511U/en active Active
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