CN108717827B - Screen module, display screen and electronic terminal - Google Patents
Screen module, display screen and electronic terminal Download PDFInfo
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- CN108717827B CN108717827B CN201810454557.0A CN201810454557A CN108717827B CN 108717827 B CN108717827 B CN 108717827B CN 201810454557 A CN201810454557 A CN 201810454557A CN 108717827 B CN108717827 B CN 108717827B
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- lead
- display substrate
- circuit board
- flexible circuit
- outgoing
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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
- G09F9/301—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 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
Abstract
The invention relates to a screen module, a display screen and an electronic terminal. The screen module includes: a display substrate having a bending region and a grooved part; the first lead-out wire group is arranged on the bending area; a second lead-out wire group arranged on the slotted component; the flexible circuit board is arranged on the backlight surface of the display substrate; the bending area and the slotted part of the display substrate are at least partially positioned on the backlight surface and are used for electrically connecting the display substrate with the flexible circuit board through the first lead-out line group and the second lead-out line group respectively. Because the outgoing lines of the display substrate are divided into the first outgoing line group and the second outgoing line group, the area of the area which can be used for wiring is increased equivalently by adopting the two groups of outgoing lines, the design of increasing the line width and the line spacing and wiring in a complex shape provides a basis, and the process yield of a high-resolution product module and the yield of a flexible narrow-frame screen module can be greatly improved finally.
Description
Technical Field
The invention relates to the technical field of display, in particular to a screen module, a display screen and an electronic terminal.
Background
With the increasing popularity of electronic devices such as mobile phones, people have higher and higher requirements on the screen occupation ratio of the electronic devices. As shown in fig. 1-2, the screen module generally includes a display substrate and a flexible circuit board, wherein the display substrate further has a plurality of lead lines, and the lead lines are disposed in a reserved lead area. In order to realize a narrow bezel, it is necessary to bend the lead region toward the backlight surface of the display substrate.
However, since the lead wires are generally thin and fragile, the lead wires are easily broken when being bent along with the lead wire region, which causes a decrease in product yield and a significant decrease in product reliability.
Disclosure of Invention
Accordingly, there is a need for a screen module, which is not easy to break when the lead wires are bent.
A screen module, comprising:
a display substrate having a bending region and a grooved part;
the first lead-out wire group is arranged on the bending area;
a second lead-out wire group arranged on the slotted component;
the flexible circuit board is arranged on the backlight surface of the display substrate;
the bending area and the slotted part of the display substrate are at least partially positioned on the backlight surface and are used for electrically connecting the display substrate with the flexible circuit board through the first lead-out line group and the second lead-out line group respectively.
In one embodiment, the slotted member is disposed on a side of the display substrate opposite to the bending region.
In one embodiment, the slotted member is disposed on a side of the display substrate adjacent to the bending region.
In one embodiment, the flexible circuit board comprises a first flexible circuit board and a second flexible circuit board; and
the first lead-out wire group is electrically connected with the first flexible circuit board, and the second lead-out wire group is electrically connected with the second flexible circuit board.
In one embodiment, the display substrate is provided with a plurality of leading-out terminals, and the flexible circuit board is provided with connecting terminals in one-to-one correspondence with the leading-out terminals; at least one of the first lead out line group and the second lead out line group includes a plurality of lead out line units; each outgoing line unit is electrically connected with one outgoing terminal and the connecting terminal corresponding to the outgoing terminal;
each outgoing line unit comprises at least two outgoing lines connected in parallel.
In one embodiment, the slotted component has a plurality of outgoing lines, and the outgoing lines of the second outgoing line group are arranged on each slotted component on average;
the bending area of the display substrate and the plurality of slotted components are at least partially located on the backlight surface and used for electrically connecting the display substrate with the flexible circuit board through the plurality of outgoing lines of the first outgoing line group and the second outgoing line group respectively.
In one embodiment, the first set of pinout lines and the second set of pinout lines comprise a plurality of pinout lines;
and a plurality of holes which are spaced from each other are arranged on the outgoing line along the radial direction of the outgoing line.
In one embodiment, a plurality of holes spaced from each other are provided on the lead-out line in the axial direction of the lead-out line.
A display screen comprises the screen module.
An electronic terminal comprises the display screen.
In the screen module, the display screen and the electronic terminal in the above embodiments, because the outgoing lines of the screen module are divided into the first outgoing line group and the second outgoing line group, the first outgoing line group is bent to the backlight surface of the display substrate through the bending region and electrically connected with the flexible circuit board, the second outgoing line group is bent to the backlight surface of the display substrate through the grooving component and electrically connected with the flexible circuit board, because the number of the outgoing lines is fixed, and the area of the area which can be used for wiring is increased by adopting at least two groups of outgoing line groups, the design of wiring in a complex shape provides a basis for increasing the line width and the line spacing, and finally the process yield of a high-resolution product module and the yield of a flexible narrow-frame screen module can be greatly improved.
Drawings
FIGS. 1-2 are schematic structural views of a screen module in the prior art;
FIGS. 3-4 are schematic views illustrating structures of a display substrate according to an embodiment;
FIGS. 5-6 are schematic structural diagrams of a flexible circuit board according to an embodiment;
FIG. 7 is a schematic diagram of the structure of a pinout in one embodiment;
figure 8 is a schematic diagram of the structure of a pinout in another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
FIGS. 3-4 are schematic structural diagrams of a screen module according to an embodiment. As shown in fig. 3 to 4, the present embodiment provides a screen module, which may include a display substrate 21 and a flexible circuit board 22. Further, the display substrate 21 may further include a bending region 211 and a groove member 212.
Specifically, the display substrate 21 may have a light emitting surface (i.e., a surface on which an image is actually displayed, not shown in the drawings) and a backlight surface (i.e., a surface shown in the drawings), and the display substrate 21 includes a display device (not shown in the drawings) for displaying an image and a region (not shown in the drawings) for wiring around the display device; the flexible circuit board 22 is used for driving and supplying power to the display substrate 21; the bending region 211 is a side of the region for wiring, and is used for bending toward the backlight surface of the display substrate 21; the groove member 212 is provided on the other side of the region for wiring, for bending toward the backlight surface of the display substrate 21 and forming a notch in the region for wiring after bending.
Further, the flexible circuit board 22 may be provided on a backlight surface of the display substrate 21 to prevent obstruction of the light exit surface to display an image. The screen module may further have a first lead-out line group 213 and a second lead-out line group 214, the first lead-out line group 213 may be disposed on the bending region 211 (i.e., passing through the bending region as shown in fig. 3), and the second lead-out line group 214 may be disposed on the slotted component 212 (i.e., passing through the slotted component as shown in fig. 3).
Further, the bending region 211 may be at least partially located on the backlight surface of the substrate 21, such that the first lead out line group 213 in the bending region 211 is bent toward the backlight surface and electrically connected to the flexible circuit board 22; on the other hand, the slotted component 212 may also be at least partially located on the backlight surface of the display substrate 21, and further the second outgoing line group 214 in the slotted component 212 is bent towards the backlight surface and electrically connected to the flexible circuit board 22.
In the above embodiment, the outgoing lines of the screen module are divided into the first outgoing line group and the second outgoing line group, the first outgoing line group is bent to the backlight surface of the display substrate through the bending region and electrically connected with the flexible circuit board, the second outgoing line group is bent to the backlight surface of the display substrate through the grooving component and electrically connected with the flexible circuit board, the number of the outgoing lines is fixed, the area of an area which can be used for wiring is increased equivalently by adopting the two groups of outgoing lines, and the design of increasing line width and line spacing and routing of complex shapes provides a basis, and finally, the process yield of the high-resolution product module and the yield of the flexible narrow-frame screen module can be greatly improved.
Based on the screen module in the above embodiments, in some embodiments, the slot component 212 may be disposed on the opposite side of the bending region 211 (i.e., the side far from the slot component 212), which makes the distance between the first lead line group 213 and the second lead line group 214 far, so that no adverse effects such as signal interference or short circuit occur.
Since the number of lead-out lines in the bending region 211 is greater than that of the lead-out lines in the groove part 212, the flexible circuit board 22 may be disposed closer to the bending region 211 to shorten the length of the first lead-out line group 213 in the bending region 211 in order to ensure product reliability. In some embodiments, the slotted member 212 may also be disposed on the display substrate 21 on a side (not shown) near the bending region 211, thereby reducing the required length of the second outgoing line 214. The longer the lead wire is, the higher the possibility of breakage, so that the screen module in the embodiment can further prevent the lead wire from being broken.
In some embodiments, the slotted component 212 may further have a plurality of pinouts (not shown in the drawings), and then the plurality of pinouts in the second pinout line group 213 may be further evenly arranged in each slotted component (not shown in the drawings) and electrically connected to the flexible circuit board 22, so as to further increase the installation distance between the pinouts, facilitate subsequent strengthening treatment of the pinouts, prevent the pinouts from breaking when being bent, and further improve the yield and reliability of products. In another embodiment, the bending region 211 and the slotted member 212 may be completely located on the backlight surface of the display substrate 21, so that the subsequent touch screen generated based on the display module has a smaller bezel.
Fig. 5 to 6 are schematic structural diagrams of the flexible circuit board in an embodiment, and based on the screen module in the above embodiment, as shown in fig. 5 to 6, in some embodiments, the first lead-out line group 213 and the second lead-out line group 214 may include a plurality of lead-out lines, and the flexible circuit board 22 may further include a first flexible circuit board 221 and a second flexible circuit board 222. Wherein the first flexible circuit board 221 may be placed at a position close to the first lead out line group 213, and the first lead out line group 213 may be electrically connected to the first flexible circuit board 221; on the other hand, the second flexible circuit board 222 may be placed at a position close to the second lead out line group 214, and the second lead out line group 214 may be electrically connected to the second flexible circuit board 222. In this embodiment, since the two flexible circuit boards are respectively connected to the first lead-out line group and the second lead-out line group, the length of each lead-out line does not need to be long, thereby further avoiding the breakage of the lead-out lines.
In some embodiments, a plurality of first lead-out terminals (not shown) may be further disposed on the display substrate 21, a corresponding plurality of first connection terminals (not shown) may be disposed on the first flexible circuit board 221, and the first lead-out terminals correspond to the first connection terminals one to one. Further, the first lead line group 213 may include a plurality of first lead line units (not shown), and one end of the first lead line unit may be electrically connected to one first lead terminal, and the other end may be connected to one first connection terminal corresponding to the first lead terminal. Further, each first lead-out wire unit may include at least two lead-out wires (not shown) connected in parallel, which makes the diameter of each first lead-out wire unit thicker and less prone to break when bent; meanwhile, only when the outgoing lines between the outgoing terminals and the corresponding connecting terminals are all broken off, the connection between the outgoing terminals and the connecting terminals is broken off, so that the reliability of the product can be further improved by the screen module in the embodiment.
Similarly, a plurality of second lead-out terminals (not shown) may be disposed on the display substrate 21, and a corresponding plurality of second connection terminals (not shown) may be disposed on the second flexible circuit board 222; also, the second lead line group 214 may include a plurality of second lead line units (not shown in the drawings), which may be electrically connected to the second lead terminals and the corresponding second connection terminals, respectively. Further, each second outlet unit may further include at least two outlets (not shown in the drawings) connected in parallel.
Fig. 7 is a schematic structural diagram of the lead-out wires in an embodiment, and based on the screen module in the above embodiment, since the installation distance between the lead-out wires is increased, the diameter of each lead-out wire can be set to be larger than a preset diameter, so that the lead-out wires are not easily broken when being bent. Further, as shown in fig. 7, a plurality of holes (which may be either through holes or blind holes) may be provided in a radial direction of the lead-out wires at intervals from each other. In order to avoid electric field concentration at the position of the hole on the lead-out wire, the hole can be set to be circular. Through setting up the hole, can avoid the lead-out wire to produce stress concentration when buckling, reduce the fracture risk. In addition, taking the example of providing two holes on the lead wire, the hole 41 and the hole 42 divide the lead wire into A, B, C three segments in the radial direction, and the lead wire is considered to be broken only when A, B, C three segments are simultaneously broken. If only A section is disconnected, B, C sections still can keep the lead-out wire in the state of being connected with the display module and the flexible circuit board, and the reliability of the product is improved.
Further, fig. 8 is a schematic structural diagram of the lead wire in another embodiment, as shown in fig. 8, in some embodiments, a plurality of holes spaced from each other may be further disposed in the axial direction of the lead wire, so as to further reduce stress concentration that may be generated when the lead wire is bent, thereby reducing the possibility of breakage of the lead wire and improving the reliability of the product.
This embodiment provides a display screen, and this display screen includes the screen module, and wherein, this screen module can include: a display substrate having a bending region and a grooved part; the first lead-out wire group is arranged on the bending area; a second lead-out wire group arranged on the slotted component; the flexible circuit board is arranged on the backlight surface of the display substrate; the bending area and the slotted part of the display substrate are at least partially positioned on the backlight surface and are used for electrically connecting the display substrate with the flexible circuit board through the first lead-out line group and the second lead-out line group respectively.
Based on the display screen in the above embodiments, in some embodiments, after the slot member is bent toward the backlight surface of the display substrate, a corresponding slot (not shown in the figure) is generated on the display substrate, and a corresponding predetermined device (not shown in the figure), such as a camera, a sensor, an earphone, etc., may be disposed in the slot.
The embodiment further provides an electronic terminal, which may include a display screen, and further, the display screen may include a screen module, wherein the screen module may include: a display substrate having a bending region and a grooved part; the first lead-out wire group is arranged on the bending area; a second lead-out wire group arranged on the slotted component; the flexible circuit board is arranged on the backlight surface of the display substrate; the bending area and the slotted part of the display substrate are at least partially positioned on the backlight surface and are used for electrically connecting the display substrate with the flexible circuit board through the first lead-out line group and the second lead-out line group respectively. It should be noted that, the electronic terminal described in this embodiment may be an AR device, a VR device, a mobile phone, a tablet computer, a vehicle-mounted display, a smart watch, and other devices that require a display, and the specific type of the electronic terminal is not limited in this embodiment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A screen module, comprising:
a display substrate having a bending region and a grooved part;
the first lead-out wire group is arranged on the bending area;
a second lead-out wire group arranged on the slotted component;
the flexible circuit board is arranged on the backlight surface of the display substrate;
the bending area and the slotted part of the display substrate are at least partially positioned on the backlight surface and are used for electrically connecting the display substrate with the flexible circuit board through the first lead-out line group and the second lead-out line group respectively; the display substrate is provided with a plurality of leading-out terminals, and the flexible circuit board is provided with connecting terminals which correspond to the leading-out terminals one by one; at least one of the first lead out line group and the second lead out line group includes a plurality of lead out line units; each outgoing line unit is electrically connected with one outgoing terminal and the connecting terminal corresponding to the outgoing terminal;
each outgoing line unit comprises at least two outgoing lines connected in parallel.
2. A screen module as recited in claim 1, wherein the slotted feature is disposed on a side of the display substrate opposite the bend region.
3. A screen module as recited in claim 1, wherein the slotted feature is disposed on a side of the display substrate adjacent to the bend region.
4. A screen module as recited in claim 3, wherein the flexible circuit board comprises a first flexible circuit board and a second flexible circuit board; and
the first lead-out wire group is electrically connected with the first flexible circuit board, and the second lead-out wire group is electrically connected with the second flexible circuit board.
5. The screen module as recited in claim 1, wherein the groove member has a plurality, and a plurality of lead-out wires of the second lead-out wire group are arranged on average on each of the groove members;
the bending area of the display substrate and the plurality of slotted components are at least partially located on the backlight surface and used for electrically connecting the display substrate with the flexible circuit board through the plurality of outgoing lines of the first outgoing line group and the second outgoing line group respectively.
6. The screen module of claim 1, wherein the first set of outlet lines and the second set of outlet lines comprise a plurality of outlet lines;
and a plurality of holes which are spaced from each other are arranged on the outgoing line along the radial direction of the outgoing line.
7. A screen module as recited in claim 6, wherein a plurality of spaced holes are provided in the lead-out wire in an axial direction of the lead-out wire.
8. A display screen, characterized in that it comprises a screen module according to any one of claims 1 to 7.
9. An electronic terminal, characterized in that it comprises a display screen according to claim 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810454557.0A CN108717827B (en) | 2018-05-14 | 2018-05-14 | Screen module, display screen and electronic terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810454557.0A CN108717827B (en) | 2018-05-14 | 2018-05-14 | Screen module, display screen and electronic terminal |
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| CN108717827A CN108717827A (en) | 2018-10-30 |
| CN108717827B true CN108717827B (en) | 2020-10-23 |
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| CN201810454557.0A Active CN108717827B (en) | 2018-05-14 | 2018-05-14 | Screen module, display screen and electronic terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111179831A (en) * | 2020-01-20 | 2020-05-19 | 成都京东方光电科技有限公司 | Display substrate and display device |
| CN111402754A (en) * | 2020-05-20 | 2020-07-10 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107992235A (en) * | 2018-01-09 | 2018-05-04 | 信利（惠州）智能显示有限公司 | Display module, display screen and touch control device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202008563U (en) * | 2010-10-18 | 2011-10-12 | 深圳市锋彩科技发展有限公司 | Display screen module |
| CN102738110A (en) * | 2012-08-10 | 2012-10-17 | 常州银河世纪微电子有限公司 | Surface-mounted type lead frame |
| KR102020982B1 (en) * | 2013-02-28 | 2019-09-16 | 엘지디스플레이 주식회사 | Flexible display divice and method of manufacturing the same |
| CN103559944B (en) * | 2013-09-27 | 2016-08-17 | 南昌欧菲光科技有限公司 | Collapsible conducting film and display |
| CN205644477U (en) * | 2016-01-20 | 2016-10-12 | 南昌欧菲光科技有限公司 | Touch screen |
| CN106293209B (en) * | 2016-07-29 | 2019-10-18 | 厦门天马微电子有限公司 | A kind of integrated touch-control display panel and its touch control display device |
| KR20180032742A (en) * | 2016-09-22 | 2018-04-02 | 삼성디스플레이 주식회사 | Flexible display panel and method of bending the same |
| JP6961457B2 (en) * | 2016-11-02 | 2021-11-05 | 株式会社半導体エネルギー研究所 | Semiconductor device |
| CN206848866U (en) * | 2016-12-05 | 2018-01-05 | 三星电子株式会社 | The arrangement of electronic installation and its module |
| CN107420821B (en) * | 2017-04-26 | 2023-06-27 | 上海小糸车灯有限公司 | OLED screen electrode connection structure |
| CN207337024U (en) * | 2017-10-27 | 2018-05-08 | 无锡变格新材料科技有限公司 | A kind of narrow frame touch liquid crystal screen |
| CN107728365A (en) * | 2017-10-31 | 2018-02-23 | 武汉华星光电技术有限公司 | Narrow frame display panel and display device |
| CN107741677B (en) * | 2017-10-31 | 2020-05-22 | 武汉天马微电子有限公司 | Display module and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107992235A (en) * | 2018-01-09 | 2018-05-04 | 信利（惠州）智能显示有限公司 | Display module, display screen and touch control device |
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