CN111929947A - Foldable direct type backlight module and liquid crystal display device - Google Patents
Foldable direct type backlight module and liquid crystal display device Download PDFInfo
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- CN111929947A CN111929947A CN202010802273.3A CN202010802273A CN111929947A CN 111929947 A CN111929947 A CN 111929947A CN 202010802273 A CN202010802273 A CN 202010802273A CN 111929947 A CN111929947 A CN 111929947A
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- side wall
- backlight module
- type backlight
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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
-
- 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
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The embodiment of the invention discloses a foldable direct type backlight module and a liquid crystal display device. The backlight module includes: the back plate comprises a bottom structure and a side wall structure, the bottom structure forms the bottom of the groove, and the side wall structure forms the side wall of the groove; the side wall structure comprises a first side wall and a second side wall which are oppositely arranged; the plane where the first side wall and the second side wall are located is vertical to the first direction; the first direction is the same as the extending direction of the bending shaft of the direct type backlight module; the plurality of light bars are sequentially arranged on the bottom structure; the plurality of light bars extend along a first direction; the flexible diffusion membrane is arranged on the back plate; the flexible diffusion film is used for optically diffusing the light emitted by the light bar; the parts of the first side wall and the second side wall corresponding to the bending shafts are provided with opposite insertion structures; the opposite insertion structure comprises an opening part and a moving part, and the moving part is opposite to the insertion opening part. Compared with the prior art, the embodiment of the invention realizes the folding of the backlight module on the basis of reducing the cost.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a foldable direct type backlight module and a liquid crystal display device.
Background
With the development of the flat panel television industry, the backlight module as an important component part not only continuously changes in optical indexes, optical quality and cost composition in order to adapt to different market requirements, but also satisfies the development trend of folding. Therefore, the backlight module needs to break through the conventional scheme and provide a new backlight method.
In the prior art, the LED backlight module includes a direct type backlight and a side type backlight, and both of the two backlight modules are widely used. However, none of the existing backlight modules can satisfy the requirement of being foldable. Meanwhile, the existing foldable display devices all adopt an Active-matrix organic light-emitting diode (AMOLED) display screen, which is expensive.
Disclosure of Invention
The embodiment of the invention provides a foldable direct type backlight module and a liquid crystal display device, which aim to realize the folding of the backlight module on the basis of reducing the cost.
In a first aspect, an embodiment of the present invention provides a foldable direct type backlight module, including:
the back plate is in a groove shape; the back plate comprises a bottom structure and a side wall structure, the bottom structure forms the bottom of the groove, and the side wall structure forms the side wall of the groove; the side wall structure comprises a first side wall and a second side wall which are oppositely arranged; the plane where the first side wall and the second side wall are located is vertical to the first direction; the first direction is the same as the extending direction of the bending shaft of the direct type backlight module;
the plurality of light bars are sequentially arranged on the bottom structure; the plurality of light bars extend along the first direction;
the flexible diffusion membrane is arranged on the back plate; the flexible diffusion membrane is used for optically diffusing the light emitted by the light bar;
the parts of the first side wall and the second side wall, which correspond to the bending shafts, are provided with opposite insertion structures; the opposite insertion structure comprises an opening part and a moving part, and the moving part is oppositely inserted into the opening part.
Optionally, the opening portion includes: the device comprises a first plate-shaped structure and a second plate-shaped structure, wherein one end of the first plate-shaped structure is fixedly connected with one end of the second plate-shaped structure.
Optionally, the distance between the adjacent light bars on the two sides of the bending shaft is a first distance, and the distance between the adjacent light bars on the same side of the bending shaft is a second distance; the first distance is greater than the second distance.
Optionally, the foldable direct-type backlight module further comprises: and the butterfly hinge is arranged on the part corresponding to the bending shaft.
Optionally, the flexible diffusion membrane comprises a main body structure and a suspension loop structure, wherein the suspension loop structure is located at the edge of the main body structure; the hanging lug structure is used for fixing the flexible diffusion membrane on the side wall structure of the back plate.
Optionally, the main structure of the flexible diffusion membrane includes an atomization structure layer, a first substrate layer, a light-increasing structure layer, a second substrate layer, and a diffusion structure layer, which are stacked.
Optionally, the atomizing structure layer comprises scattering particles; the light-increasing structure layer comprises prisms; the diffusion structure includes scattering particles.
Optionally, the foldable direct-type backlight module further comprises: the light reflecting piece is arranged on one side, close to the light bar, of the bottom structure.
Optionally, the foldable direct-type backlight module further comprises: and the reflective ink layer is positioned on one side of the side wall structure close to the light bar.
In a second aspect, an embodiment of the present invention further provides a liquid crystal display device, including: the foldable direct type backlight module according to any embodiment of the invention.
According to the embodiment of the invention, the extending direction of the light bar is parallel to the bending axis, the flexible diffusion membrane is matched with the back plate to be folded, and the first side wall and the second side wall are provided with the opposite insertion structures at the positions of the bending axis, so that the folding of the backlight module is realized, and the folding design of the liquid crystal display device is facilitated. In specific application, the liquid crystal display device can be folded into a plurality of display surfaces according to the requirements of users, and different complete pictures, spliced pictures and the like can be displayed on different display surfaces by matching with the design of board card hardware and software. Or, can install and accomodate according to every display surface size, save house space. Therefore, the embodiment of the invention expands the application range and competitiveness of the liquid crystal display device. In addition, compared with the conventional flexible AMOLED display screen, the AMOLED display screen is beneficial to reducing the cost. In summary, the embodiment of the invention realizes the folding of the backlight module on the basis of reducing the cost, and is beneficial to the application range and popularization of the liquid crystal display device.
Drawings
Fig. 1 is a schematic structural diagram of a foldable direct-type backlight module according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic structural diagram of an opposite insertion structure according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a foldable direct-type backlight module according to an embodiment of the present invention in a folded state;
FIG. 5 is an enlarged schematic view of the region 101 in FIG. 4;
fig. 6 is a schematic partial structure diagram of a back plate according to an embodiment of the present invention;
FIG. 7 is a schematic structural view of FIG. 6 in a folded state;
FIG. 8 is a schematic structural view of the butterfly hinge of FIG. 7;
fig. 9 is a schematic structural diagram of a flexible diffusion membrane according to an embodiment of the present invention;
FIG. 10 is a schematic view of the structure of the hanger of FIG. 9;
fig. 11 is a schematic diagram illustrating a structure of a flexible diffusion membrane according to an embodiment of the present invention;
fig. 12 is a schematic structural view of another foldable direct-type backlight module according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a foldable direct type backlight module according to an embodiment of the present invention, and fig. 2 is a schematic structural diagram of a cross-section along a-a in fig. 1. Referring to fig. 1 and 2, the foldable direct type backlight module includes: a back panel 100, a plurality of light bars 200, and a flexible diffuser film 300. The back plate 100 is in a groove shape, the back plate 100 includes a bottom structure 110 and a sidewall structure 120, the bottom structure 110 forms a bottom of the groove, and the sidewall structure 120 forms a sidewall of the groove; the sidewall structure 120 includes a first sidewall 121 and a second sidewall 122 oppositely disposed; the planes of the first sidewall 121 and the second sidewall 122 are perpendicular to the first direction X; and the first direction X is the same as the extending direction of the bending axis 400 of the direct-type backlight module. The plurality of light bars 200 are sequentially arranged on the bottom structure 110; the plurality of light bars 200 all extend along the first direction X. The flexible diffusion membrane 300 is disposed on the back plate 100; the flexible diffusion film 300 is used to optically diffuse the light emitted from the light bar 200.
Wherein, a plurality of lamp strips 200 are placed in parallel, and the extending direction of lamp strip 200 is the same with the extending direction of axle 400 of buckling for the folding position is dodged to the interval region of lamp strip 200, and the folding of backlight unit can not be influenced in lamp strip 200's setting, thereby is favorable to backlight unit's folding. In fig. 1 and 2, the backlight module exemplarily includes four foldable areas, and a bending axis 400 is between two adjacent foldable areas. The bending axis 400 indicates a position along which the backlight module can be folded, and the bending axis 400 may represent an area or a line, and similar to the symmetry axis, the bending axis 400 may have no physical structure and only represents the position where the backlight module is bent. In each foldable area, the number of light bars 200 is set according to specific needs.
Optionally, the distance between the adjacent light bars 200 on both sides of the bending shaft 400 is a first distance d1, and the distance between the adjacent light bars 200 on the same side of the bending shaft 400 is a second distance d 2; the first distance d1 is greater than the second distance d 2. Set up like this, be favorable to lamp strip 200 to dodge at backlight unit's folding in-process.
The flexible diffusion film 300 is a foldable and bendable optical film having a diffusion function, and is used to match with the folding of the back plate 100, thereby facilitating the overall folding performance of the backlight module.
The first sidewall 121 and the second sidewall 122 are deformed when the backlight module is folded, and therefore, the portions of the first sidewall 121 and the second sidewall 122 corresponding to the bending axis 400 are provided with the opposite insertion structures 130. Fig. 3 is a schematic structural diagram of an opposite insertion structure according to an embodiment of the present invention, fig. 4 is a schematic structural diagram of a foldable direct type backlight module according to an embodiment of the present invention in a folded state, and fig. 5 is an enlarged structural diagram of an area 101 in fig. 4. Referring to fig. 3 to 5, the insertion structure 130 includes an opening 131 and a moving portion 132, and the moving portion 132 is inserted into the opening 131. For example, when the back plate 100 is folded, the moving portion 132 moves in the opening 131 to ensure the flexibility of the back plate 100 during folding, so as to prevent the first sidewall 121 and the second sidewall 122 of the back plate 100 from being unable to be folded due to wrinkles at the position of the folding axis 400.
As can be seen from the above analysis, in the embodiment of the invention, the extending direction of the light bar 200 is parallel to the bending axis 400, the flexible diffusion film 300 is folded in cooperation with the back plate 100, and the first sidewall 121 and the second sidewall 122 are provided with the inserting structure 130 at the position of the bending axis 400, so that the folding of the backlight module is realized, thereby facilitating the folding design of the liquid crystal display device. In specific application, the liquid crystal display device can be folded into a plurality of display surfaces according to the requirements of users, and different complete pictures, spliced pictures and the like can be displayed on different display surfaces by matching with the design of board card hardware and software. Or, can install and accomodate according to every display surface size, save house space. Therefore, the embodiment of the invention expands the application range and competitiveness of the liquid crystal display device. In addition, compared with the conventional flexible AMOLED display screen, the AMOLED display screen is beneficial to reducing the cost. In summary, the embodiment of the invention realizes the folding of the backlight module on the basis of reducing the cost, and is beneficial to the application range and popularization of the liquid crystal display device.
With continued reference to fig. 3-5, in addition to the above embodiments, optionally, the insertion structure 130 is a Y-shaped insertion structure, and the opening 131 includes: the structure comprises a first plate-shaped structure 133 and a second plate-shaped structure 134, wherein one end of the first plate-shaped structure 133 is fixedly connected with one end of the second plate-shaped structure 134, and the other end of the first plate-shaped structure forms an opening. In this way, the moving portion 132 is located between the first plate-shaped structure 133 and the second plate-shaped structure 134, thereby being beneficial to avoiding light leakage of the backlight module.
Fig. 6 is a partial schematic structural view of a back panel according to an embodiment of the present invention, fig. 7 is a schematic structural view of fig. 6 in a folded state, and fig. 8 is a schematic structural view of the butterfly hinge in fig. 7. Referring to fig. 6 to 8, in an embodiment of the present invention, optionally, the foldable direct type backlight module further includes: the butterfly hinge 500 is provided at a portion corresponding to the bending shaft 400, and the butterfly hinge 500 is provided at a portion corresponding to the bending shaft 400. The butterfly hinge 500 can be folded forward and backward, the folding angle is flexible, and the 360-degree bending design of the backlight module is facilitated.
Fig. 9 is a schematic structural diagram of a flexible diffusion membrane according to an embodiment of the present invention, and fig. 10 is a schematic structural diagram of a hanger structure in fig. 9. Referring to fig. 9 and 10, in one embodiment of the present invention, the flexible diffusion membrane 300 optionally includes a main body structure 310 and a hanging ear structure 320, the hanging ear structure 320 being located at an edge of the main body structure 310; the hanging lug structure 320 is used to fix the flexible diffusion membrane 300 to the sidewall structure 120 of the back plate 100. Wherein the ear structure 320 comprises an ear inner hook 311. Therefore, the flexible diffusion membrane 300 and the back plate 100 are fixed by the hooks, on one hand, other film layers such as an adhesive layer are not needed to be arranged between the flexible diffusion membrane 300 and the light bar 200, and the diffusion effect of the flexible diffusion membrane 300 on light is favorably improved; on the other hand, the flexible diffusion membrane 300 is provided with the ear structure 320, so as to increase the stiffness and stability of the flexible diffusion membrane 300.
Fig. 11 is a schematic diagram of a film structure of a flexible diffusion film according to an embodiment of the present invention. Referring to fig. 11, in an embodiment of the present invention, optionally, the main structure 310 of the flexible diffusion membrane 300 includes an atomization structure layer 311, a first substrate layer 312, a light-enhancing structure layer 313, a second substrate layer 314, and a diffusion structure layer 315, which are stacked. The first substrate layer 312 and the second substrate layer 314 are used for providing support for the atomizing structure layer 311, the light-enhancing structure layer 313 and the diffusion structure layer 315. Illustratively, the material of the first and second substrate layers 312 and 314 includes polyethylene terephthalate (PET). The atomization structure layer 311 is used for atomizing light emitted by the light bar 200, so that the light emitted by the backlight module is uniform, and optionally, the atomization structure layer 311 includes scattering particles. The light increasing structure layer 313 serves to increase light, and optionally, the light increasing structure layer 313 includes prisms. The diffusing structure layer 315 is used to cover the polarized light caused by the prisms, so that the light emitted from the backlight is uniform.
With continued reference to fig. 11, in an embodiment of the present invention, optionally, the main body structure 310 of the flexible diffusion membrane 300 further includes an optical adhesive layer 316, and the optical adhesive layer 316 is disposed between the light-enhancing structure layer 313 and the second substrate layer 314. The optical adhesive layer 316 is used for bonding the light-enhancing structure layer 313 and the second substrate layer 314. In addition, the optical adhesive layer 316 is colorless and transparent, and has high light transmittance, which is beneficial to the diffusion of the flexible diffusion film 300.
Fig. 12 is a schematic structural view of another foldable direct-type backlight module according to an embodiment of the present invention. Referring to fig. 12, in an embodiment of the present invention, optionally, the foldable direct-type backlight module further includes a reflective sheet 600, and the reflective sheet 600 is disposed on a side of the bottom structure 110 close to the light bar 200, that is, the reflective sheet 600 is disposed between the bottom structure and the light bar 200. Therefore, light emitted by the light bar 200 can be emitted from one side of the flexible diffusion film 300 completely, and the light-emitting rate of the backlight module is enhanced.
With continued reference to fig. 12, in an embodiment of the present invention, optionally, the foldable direct-type backlight module further includes a reflective ink layer 700, where the reflective ink layer 700 is located on a side of the sidewall structure 120 close to the light bar 200. Illustratively, the light reflecting ink layer 700 is a white ink layer. In the embodiment of the invention, the reflective ink layer is arranged on the side wall structure 120 to replace a reflective sheet, and the groove formed by the back plate has a reflective function as a whole, so that the light reflection is realized, the light extraction rate is enhanced, and the folding performance of the backlight module is facilitated.
The embodiment of the invention also provides a liquid crystal display device, which can be a television, a tablet computer, a computer display, wearable equipment, an information inquiry machine or the like. The liquid crystal display device comprises the foldable direct type backlight module provided by any embodiment of the invention, and the technical principle and the generated effect are similar and are not described again.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. The utility model provides a collapsible straight following formula backlight unit which characterized in that includes:
the back plate is in a groove shape; the back plate comprises a bottom structure and a side wall structure, the bottom structure forms the bottom of the groove, and the side wall structure forms the side wall of the groove; the side wall structure comprises a first side wall and a second side wall which are oppositely arranged; the plane where the first side wall and the second side wall are located is vertical to the first direction; the first direction is the same as the extending direction of the bending shaft of the direct type backlight module;
the plurality of light bars are sequentially arranged on the bottom structure; the plurality of light bars extend along the first direction;
the flexible diffusion membrane is arranged on the back plate; the flexible diffusion membrane is used for optically diffusing the light emitted by the light bar;
the parts of the first side wall and the second side wall, which correspond to the bending shafts, are provided with opposite insertion structures; the opposite insertion structure comprises an opening part and a moving part, and the moving part is oppositely inserted into the opening part.
2. The foldable direct type backlight module according to claim 1, wherein the opening portion comprises: the device comprises a first plate-shaped structure and a second plate-shaped structure, wherein one end of the first plate-shaped structure is fixedly connected with one end of the second plate-shaped structure.
3. The foldable direct type backlight module according to claim 1, wherein a distance between the adjacent light bars on two sides of the bending axis is a first distance, and a distance between the adjacent light bars on the same side of the bending axis is a second distance; the first distance is greater than the second distance.
4. The foldable direct type backlight module according to claim 1, further comprising: and the butterfly hinge is arranged on the part corresponding to the bending shaft.
5. The foldable direct type backlight module according to claim 1, wherein the flexible diffusion film comprises a main structure and a hanging structure, and the hanging structure is located at an edge of the main structure; the hanging lug structure is used for fixing the flexible diffusion membrane on the side wall structure of the back plate.
6. The foldable direct type backlight module according to claim 1, wherein the main structure of the flexible diffusion film comprises an atomization structure layer, a first substrate layer, a light enhancement structure layer, a second substrate layer and a diffusion structure layer, which are stacked.
7. The foldable direct type backlight module as claimed in claim 6, wherein the atomizing structure layer comprises scattering particles; the light-increasing structure layer comprises prisms; the diffusion structure includes scattering particles.
8. The foldable direct type backlight module according to claim 1, further comprising: the light reflecting piece is arranged on one side, close to the light bar, of the bottom structure.
9. The foldable direct type backlight module according to claim 8, further comprising: and the reflective ink layer is positioned on one side of the side wall structure close to the light bar.
10. A liquid crystal display device, comprising: the foldable direct type backlight module according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010802273.3A CN111929947B (en) | 2020-08-11 | 2020-08-11 | Foldable direct type backlight module and liquid crystal display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010802273.3A CN111929947B (en) | 2020-08-11 | 2020-08-11 | Foldable direct type backlight module and liquid crystal display device |
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| CN111929947A true CN111929947A (en) | 2020-11-13 |
| CN111929947B CN111929947B (en) | 2022-10-04 |
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|---|---|---|---|---|
| CN2684226Y (en) * | 2004-03-15 | 2005-03-09 | 英业达股份有限公司 | Lifting device for LCD of portable electronic installation |
| CN102693683A (en) * | 2011-03-21 | 2012-09-26 | 纬创资通股份有限公司 | Display |
| CN103608745A (en) * | 2011-06-07 | 2014-02-26 | 微软公司 | Flexible display foldable assembly |
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| CN111929947B (en) | 2022-10-04 |
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Denomination of invention: Foldable straight down backlight module and liquid crystal display device Effective date of registration: 20221101 Granted publication date: 20221004 Pledgee: Jiangsu Kunshan Rural Commercial Bank Co.,Ltd. Pledgor: JIANGSU ECHOM SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2022320010635 |