CN110824777B - Backlight module, display screen and electronic equipment - Google Patents
Backlight module, display screen and electronic equipment Download PDFInfo
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- CN110824777B CN110824777B CN201911182454.4A CN201911182454A CN110824777B CN 110824777 B CN110824777 B CN 110824777B CN 201911182454 A CN201911182454 A CN 201911182454A CN 110824777 B CN110824777 B CN 110824777B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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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
-
- 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
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- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a backlight module, a display screen and electronic equipment, wherein the backlight module comprises a light-emitting component, the light-emitting component comprises a substrate, a first light-emitting device, a second light-emitting device and a third light-emitting device, the substrate is provided with a first surface, a second surface and a third surface, the first surface is adjacent to the second surface, the third surface is arranged opposite to the second surface, the first light-emitting device is arranged on the first surface, the second light-emitting device is arranged on the second surface, and the third light-emitting device is arranged on the third surface. The backlight module can be arranged corresponding to the bent part of the display screen, light emitted by the first light-emitting device can be used as backlight of the bent part, and light emitted by the second light-emitting device and light emitted by the third light-emitting device can be used as backlight of other parts of the display screen. Therefore, after the structure is adopted, the bending part of the display screen can display, so that the screen of the electronic equipment is higher in occupation ratio.
Description
Technical Field
The invention relates to the technical field of backlight devices, in particular to a backlight module, a display screen and electronic equipment.
Background
Along with the user demand to electronic equipment constantly promotes, electronic equipment's screen size constantly enlarges, and the increase of screen size usually can lead to electronic equipment's whole size grow simultaneously, brings the just problem of being not convenient for carry thereupon. Therefore, the larger screen size and portability are now outstanding contradictions for the structural design of electronic devices.
In order to satisfy the requirements of users for larger screen size and portability at the same time, foldable electronic devices have come to be produced. The electronic equipment has a folded state and an unfolded state, and when the electronic equipment is in the unfolded state, the display screen is flattened, so that a larger display area can be obtained; when the electronic equipment is in a folded state, the display screen is bent, and the whole size of the electronic equipment is reduced at the moment, so that the electronic equipment is convenient to carry.
However, for a display screen with a backlight module, the bending portion of the display screen is not provided with a corresponding backlight module, and thus the bending portion cannot display, resulting in a low screen occupation ratio of the electronic device.
Disclosure of Invention
The invention discloses a backlight module, a display screen and electronic equipment, and aims to solve the problem that the screen occupation ratio of the electronic equipment is low.
In order to solve the problems, the invention adopts the following technical scheme:
a backlight module comprises a light-emitting component, wherein the light-emitting component comprises a substrate, a first light-emitting device, a second light-emitting device and a third light-emitting device, the substrate is provided with a first face, a second face and a third face, the first face is adjacent to the second face, the third face is arranged opposite to the second face, the first light-emitting device is arranged on the first face, the second light-emitting device is arranged on the second face, and the third light-emitting device is arranged on the third face.
The utility model provides a display screen, includes display screen main part and above-mentioned backlight unit, the display screen main part can be buckled to first region, second area and third area, the third area is located first region with between the second area, backlight unit corresponds the setting of third area.
An electronic device comprises the display screen.
The technical scheme adopted by the invention can achieve the following beneficial effects:
in the backlight module disclosed by the invention, the light-emitting component comprises a substrate, a first light-emitting device, a second light-emitting device and a third light-emitting device, wherein the first light-emitting device, the second light-emitting device and the third light-emitting device can share the same substrate, and the first light-emitting device, the second light-emitting device and the third light-emitting device can emit light in different directions. The backlight module can be arranged corresponding to the bent part of the display screen, light emitted by the first light-emitting device can be used as backlight of the bent part, and light emitted by the second light-emitting device and light emitted by the third light-emitting device can be used as backlight of other parts of the display screen. Therefore, after the structure is adopted, the bending part of the display screen can display, so that the screen of the electronic equipment is higher in occupation ratio.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of an electronic device according to an embodiment of the disclosure;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic view of a backlight module according to an embodiment of the disclosure.
Description of reference numerals:
100-display screen main body, 110-first area, 120-second area, 130-third area, 200-light emitting component, 210-substrate, 211-first face, 212-second face, 213-third face, 220-first light emitting device, 221-first light emitting chip, 222-first light emitting material, 230-second light emitting device, 231-second light emitting chip, 232-second light emitting material, 240-third light emitting device, 241-third light emitting chip, 242-third light emitting material, 300-light source plate, 400-hinge structure, 510-first main plate, 520-second main plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to fig. 3, an embodiment of the present invention discloses a backlight module, which may be a part of a display screen, where the display screen may include a display screen main body 100, the display screen main body 100 may be bent into a first region 110, a second region 120, and a third region 130, the third region 130 is located between the first region 110 and the second region 120, the backlight module may be disposed corresponding to the third region 130, and the third region 130 is a bent portion of the display screen.
The backlight module may specifically include a light emitting assembly 200, and the light emitting assembly 200 includes a substrate 210, a first light emitting device 220, a second light emitting device 230, and a third light emitting device 240. The substrate 210 may be a ceramic substrate, the substrate 210 has a first surface 211, a second surface 212, and a third surface 213, the first surface 211 is adjacent to the second surface 212, the third surface 213 is opposite to the second surface 212, the first light emitting device 220 is disposed on the first surface 211, the second light emitting device 230 is disposed on the second surface 212, and the third light emitting device 240 is disposed on the third surface 213.
In the backlight module disclosed in the embodiment of the present invention, the first light emitting device 220, the second light emitting device 230, and the third light emitting device 240 may share the same substrate 210, and compared with a scheme in which the whole backlight module employs a plurality of independent light bars, the backlight module may reduce a space occupied by the backlight module, and at the same time, reduce the cost of the backlight module. In addition, the first light emitting device 220, the second light emitting device 230, and the third light emitting device 240 may emit light in different directions, the backlight module may be disposed at a bent portion corresponding to the display screen, the light emitted from the first light emitting device 220 may be used as backlight at the bent portion, and the light emitted from the second light emitting device 230 and the third light emitting device 240 may be used as backlight at other portions of the display screen. Therefore, after the structure is adopted, the bending part of the display screen can display, so that the screen of the electronic equipment is higher in occupation ratio.
The light emitting assembly 200 may be only one, in order to increase the light emitting area of the backlight module, thereby ensuring the light emitting effect of the backlight module, the substrate 210 may be set to have a bar structure, and even the first light emitting device 220, the second light emitting device 230, and the third light emitting device 240 may be set to have a bar structure, when the backlight module is assembled with the display screen main body 100, the extending directions of the substrate 210, the first light emitting device 220, the second light emitting device 230, and the third light emitting device 240 are all parallel to the bending axis of the display screen main body 100. At this time, the substrate 210, the first light emitting device 220, the second light emitting device 230, and the third light emitting device 240 are all relatively large in size, and occupy a relatively large space.
In order to solve the above problem, the backlight module further includes a light source plate 300, the light source plate 300 has a bar structure, and when the backlight module is assembled with the display panel main body 100, the extending direction of the light source plate 300 is parallel to the bending axis of the display panel main body 100. The number of the light emitting assemblies 200 is at least two, and the at least two light emitting assemblies 200 are disposed on the light source plate 300 at intervals. The light emitting assemblies 200 are arranged to be at least two, so that different positions of the backlight module can emit light, and meanwhile, the light emitting effect of the backlight module cannot be influenced by the mode that the light emitting assemblies 200 are arranged at intervals, the size of each light emitting assembly 200 can be reduced, and the whole occupied space of each light emitting assembly 200 is smaller. In addition, when the arrangement mode is adopted, the installation of each light-emitting component 200 is flexible, so that the assembly operation of the backlight module and the display screen main body 100 is convenient.
The light source panel 300 may be electrically connected to the first, second, and third light emitting devices 220, 230, and 240 through the substrate 210, thereby implementing driving of the three. The light source plate 300 may adopt a hard structure, but in order to facilitate the assembly of the backlight module with the display screen main body 100, the light source plate 300 may be provided as a flexible circuit board. At this time, the backlight assembly may be deformed, thereby facilitating the assembly operation. Meanwhile, when the backlight module is stored, the space occupied by the backlight module can be smaller by bending the backlight module, so that the backlight module is convenient to store.
In an alternative embodiment, in order to simplify the structures of the first light emitting device 220, the second light emitting device 230, and the third light emitting device 240, the first light emitting device 220, the second light emitting device 230, and the third light emitting device 240 each include a light emitting chip and a light emitting material, the light emitting chip is disposed on the substrate 210, and the light emitting material wraps the light emitting chip. Specifically, the first light emitting device 220 includes a first light emitting chip 221 and a first light emitting material 222, the second light emitting device 230 includes a second light emitting chip 231 and a second light emitting material 232, the third light emitting device 240 includes a third light emitting chip 241 and a third light emitting material 242, the first light emitting chip 221 is disposed on the first side 211 of the substrate 210, the second light emitting chip 231 is disposed on the second side 212 of the substrate 210, the third light emitting chip 241 is disposed on the third side 213 of the substrate 210, the first light emitting material 222 wraps the first light emitting chip 221, the second light emitting material 232 wraps the second light emitting chip 231, and the third light emitting material 242 wraps the third light emitting chip 241.
The main function of the backlight module is to provide backlight, so that the first light emitting device 220, the second light emitting device 230, and the third light emitting device 240 may all include a backlight, when the number of the light emitting assemblies 200 is at least two, the first light emitting device 220, the second light emitting device 230, and the third light emitting device 240 of each light emitting assembly 200 may all be a backlight, or a part of the light emitting assemblies 200 may include a backlight, and in another part of the light emitting assemblies 200, at least one of the first light emitting device 220, the second light emitting device 230, and the third light emitting device 240 includes a light emitting device other than a backlight, and the function of the light emitting device is different from that of the backlight, for example, the light emitting device may be a flash lamp or a fill light lamp. Of course, the first light emitting device 220, the second light emitting device 230, and the third light emitting device 240 may further include other devices having a light emitting function, which is not limited in this embodiment of the present invention.
Based on the backlight module described in any of the above embodiments, the embodiment of the present invention further discloses a display screen, which includes a display screen main body 100 and the backlight module described in any of the above embodiments, the display screen main body 100 can be bent into a first region 110, a second region 120 and a third region 130, the third region 130 is located between the first region 110 and the second region 120, and the backlight module is disposed corresponding to the third region 130. As described above, with this structure, the display screen can display at the bent portion, so that the screen occupation ratio of the electronic device is higher.
Above-mentioned first face 211 can extend along the thickness direction of display screen, and first light emitting device 220 need adopt the luminous mode work of side this moment, consequently need additionally set up light guide structure for the light that first light emitting device 220 sent evenly jets into third region 130 through this light guide structure, and this kind of mode can lead to backlight unit's structure too complicated, and luminous effect relies on light guide structure's leaded light performance, the not good problem of luminous effect appears easily. Based on this, the first surface 211 may face the third region 130, and at this time, the light emitted by the first light emitting device 220 may be directly transmitted to the third region 130, without additionally adding a light guide structure to achieve light guiding. As can be seen, the first light emitting device 220 works in a top-emission manner, which can simplify the structure of the backlight module and improve the light emitting effect.
Further, since the second surface 212 and the third surface 213 are both side surfaces of the substrate 210, the second light emitting device 230 and the third light emitting device 240 operate in a side light emitting manner, and light guide structures may be disposed corresponding to the second light emitting device 230 and the third light emitting device 240, so that the light emitting effects of the second light emitting device 230 and the third light emitting device 240 are better, and the purpose of optimizing the display effect is achieved.
When the first surface 211 faces the third region 130, the first light emitting device 220 faces the third region 130, and at this time, the first light emitting device 220 includes a backlight, and the first light emitting device 220 further includes at least one of a flash lamp and a fill-in lamp, so that a part of light emitted by the first light emitting device 220 can directly exit the third region 130, thereby implementing a flash or fill-in function. Since the first light emitting device 220 faces the third region 130, the first light emitting device 220 has a better effect when performing a flash or fill light operation.
Based on the display screen described in any of the above embodiments, an embodiment of the present invention further discloses an electronic device, which may include the display screen described in any of the above embodiments.
In an optional embodiment, the electronic device further includes a first main body portion, a second main body portion and a hinge structure 400, the first main body portion is hinged to the second main body portion through the hinge structure 400, the display screen main body 100 is connected to the first main body portion and the second main body portion, and the hinge structure 400 is disposed corresponding to the third area 130. Here, the first body portion may include a first main plate 510, the second body portion may include a second main plate 520, and the hinge structure 400 may be located between the first main plate 510 and the second main plate 520. First main part and the articulated back of second main part, first main part and second main part can rotate relatively to realize the collapsible of display screen main part 100, the size after display screen main part 100 is folded is less, therefore this kind of electronic equipment is portable more, and first main part passes through hinge structure 400 and the second main part is articulated, then can be through optimizing hinge structure 400's concrete structure, make the relative rotation of first main part and second main part more accurate, reliable.
The specific structure of the hinge structure 400 can be flexibly selected, for example, the hinge structure 400 can include a hinge shaft, and the structure of the hinge structure 400 is simpler. Of course, the hinge structure 400 may also take other structural forms, and the embodiment of the present invention is not limited thereto.
As can be seen from the above, the backlight module and the hinge structure 400 can be disposed corresponding to the third region 130, and the backlight module and the hinge structure 400 can be not in contact with each other and can maintain a certain space therebetween, but the backlight module can be connected to the hinge structure 400 in order to improve the utilization of the space in the electronic device. That is, the backlight module can be installed through the hinge structure 400, so that an additional structure for installing the backlight module is not required, and the space occupied by the structure is saved, thereby facilitating the installation of other components in the electronic device.
The electronic device disclosed by the embodiment of the invention can be a smart phone, a tablet computer, an electronic book reader or a wearable device. Of course, the electronic device may also be other devices, and the embodiment of the present invention is not limited in this respect.
In the above embodiments of the present invention, the difference between the embodiments is mainly described, and different optimization features between the embodiments can be combined to form a better embodiment as long as they are not contradictory, and further description is omitted here in view of brevity of the text.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. A display screen is characterized by comprising a display screen main body (100) and a backlight module, wherein the display screen main body (100) can be bent into a first area (110), a second area (120) and a third area (130), the third area (130) is positioned between the first area (110) and the second area (120), and the backlight module is arranged corresponding to the third area (130);
the backlight module comprises a light emitting assembly (200), wherein the light emitting assembly (200) comprises a substrate (210), a first light emitting device (220), a second light emitting device (230) and a third light emitting device (240), the substrate (210) is provided with a first face (211), a second face (212) and a third face (213), the first face (211) is adjacent to the second face (212), the third face (213) is opposite to the second face (212), the first light emitting device (220) is arranged on the first face (211), the second light emitting device (230) is arranged on the second face (212), and the third light emitting device (240) is arranged on the third face (213).
2. A display screen according to claim 1, wherein the backlight module further comprises a light source board (300), the light source board (300) is a bar structure, the number of the light emitting assemblies (200) is at least two, and at least two of the light emitting assemblies (200) are arranged on the light source board (300) at intervals.
3. A display screen according to claim 2, characterised in that the light source board (300) is a flexible circuit board.
4. The display screen of claim 1, wherein the first light emitting device (220), the second light emitting device (230), and the third light emitting device (240) each comprise a light emitting chip disposed on the substrate (210) and a light emitting material encapsulating the light emitting chip.
5. A display screen according to claim 1, wherein the first light emitting device (220) comprises a backlight and the first light emitting device (220) further comprises at least one of a flash and a fill light.
6. A display screen according to claim 1, characterised in that the first face (211) faces the third area (130).
7. An electronic device characterized by comprising a display screen according to any one of claims 1 to 6.
8. The electronic device of claim 7, further comprising a first main body portion, a second main body portion and a hinge structure (400), wherein the first main body portion is hinged to the second main body portion through the hinge structure (400), the display screen main body (100) is connected to the first main body portion and the second main body portion, and the hinge structure (400) is disposed corresponding to the third region (130).
9. The electronic device of claim 8, wherein the backlight module is coupled to the hinge structure (400).
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| CN201911182454.4A CN110824777B (en) | 2019-11-27 | 2019-11-27 | Backlight module, display screen and electronic equipment |
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| CN201911182454.4A CN110824777B (en) | 2019-11-27 | 2019-11-27 | Backlight module, display screen and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110376789A (en) * | 2019-05-31 | 2019-10-25 | 华为技术有限公司 | Backlight module, mobile terminal, the preparation method of lamp bar, lamp bar circuit board |
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| US6635987B1 (en) * | 2000-09-26 | 2003-10-21 | General Electric Company | High power white LED lamp structure using unique phosphor application for LED lighting products |
| JP2003050554A (en) * | 2001-08-08 | 2003-02-21 | Sony Corp | Liquid crystal display device |
| KR100848201B1 (en) * | 2004-04-23 | 2008-07-24 | 도시바 마쯔시따 디스플레이 테크놀로지 컴퍼니, 리미티드 | Surface light source device and display device |
| KR102455039B1 (en) * | 2016-03-18 | 2022-10-17 | 삼성디스플레이 주식회사 | Stretchable display device |
| CN106054454B (en) * | 2016-08-09 | 2019-06-21 | 京东方科技集团股份有限公司 | A kind of back light source structure and its control method, backlight module, display device |
| CN108415186B (en) * | 2018-03-02 | 2021-04-30 | 惠州市华星光电技术有限公司 | Foldable liquid crystal display screen and foldable liquid crystal display |
| CN108761916B (en) * | 2018-06-12 | 2021-04-13 | 武汉天马微电子有限公司 | Backlight module and display device |
| CN108983496A (en) * | 2018-08-02 | 2018-12-11 | 深圳市华星光电技术有限公司 | Backlight module and display device |
| CN208862893U (en) * | 2018-09-19 | 2019-05-14 | 维沃移动通信有限公司 | A kind of mobile terminal |
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| CN110376789A (en) * | 2019-05-31 | 2019-10-25 | 华为技术有限公司 | Backlight module, mobile terminal, the preparation method of lamp bar, lamp bar circuit board |
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