CN114019716A - Mini LED liquid crystal display module and control circuit thereof - Google Patents
Mini LED liquid crystal display module and control circuit thereof Download PDFInfo
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- CN114019716A CN114019716A CN202110986007.5A CN202110986007A CN114019716A CN 114019716 A CN114019716 A CN 114019716A CN 202110986007 A CN202110986007 A CN 202110986007A CN 114019716 A CN114019716 A CN 114019716A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 29
- 238000009792 diffusion process Methods 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 8
- 238000012986 modification Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Classifications
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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
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
-
- 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
-
- 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
- G02F1/133612—Electrical details
-
- 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
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
Abstract
A Mini LED liquid crystal display module and a control circuit thereof comprise a Mini LED lamp panel, a blue light enhancement film and a QD film, wherein the blue light enhancement film is attached to the surface of the Mini LED lamp panel, and the QD film is attached to one side face, far away from the Mini LED lamp panel, of the blue light enhancement film; the LED display panel comprises a Mini LED liquid crystal display module, an integrated circuit, an MCU chip, a Mini LED driving chip, a second connector, a first connector and an LCD display screen, wherein blue light is emitted through an LED bare chip on a Mini LED lamp panel, the brightness of the blue light of the lamp panel is improved through a blue light enhancement film, the blue light is converted into white light through a QD film, and finally the front side is uniformly luminous through the stacking of conventional film materials.
Description
Technical Field
The invention relates to the field of liquid crystal display screens, in particular to a Mini LED liquid crystal display module and a control circuit thereof.
Background
The Mini LED straight lamp panel is based on a PCB hard board, an FPC soft board and an LCD glass substrate as carriers, an integrated circuit based on algorithm control is designed on the Mini LED straight lamp panel, packaging design is conducted, an SMT process is used for fixing a minimum bare wafer on the Mini LED straight lamp panel, a surface optical reflection process is conducted, a sealing and measuring technology, a die bonding technology and a series of high-precision process flows are conducted, and therefore light emitting application is achieved.
Traditional backlight lamp plate is through the refraction that one row of LED side is luminous to lead to the board light, and the reflection of diaphragm comes the light conversion that the side entered to straight upper formula, and such mode structural thickness is hardly done thinly, and light loss is very big, and luminance hardly promotes, can only bright dark entirely moreover, to sum up, this application now provides a Mini LED liquid crystal display module assembly and control circuit and solves the problem that the aforesaid appears.
Disclosure of Invention
In view of the above, the present invention is directed to a Mini LED liquid crystal display module and a control circuit thereof to solve the problems of the background art.
Based on the purpose, the invention provides a Mini LED liquid crystal display module which comprises a Mini LED lamp panel, a blue light enhancement film and a QD film, wherein the blue light enhancement film is attached to the surface of the Mini LED lamp panel, and the QD film is attached to one side face, far away from the Mini LED lamp panel, of the blue light enhancement film.
Preferably, a lower diffusion film is also included, the lower diffusion film being attached to a side of the QD film that is distal from the blue light enhancement film.
More preferably, the liquid crystal display further comprises a lower brightness enhancement film attached to one side of the lower diffusion film away from the QD film.
More preferably, the light-emitting device further comprises an upper brightness enhancement film attached to one side surface of the lower brightness enhancement film, which is far away from the lower diffusion film.
More preferably, the light-emitting device further comprises an upper diffusion film, and the upper diffusion film is attached to one side surface of the upper brightness enhancement film, which is far away from the lower brightness enhancement film.
The utility model provides a control circuit of Mini LED liquid crystal display module, includes Mini LED liquid crystal display module, integrated circuit, MCU chip, Mini LED driver chip, second connector, first connector and LCD display screen, Mini LED liquid crystal display module includes Mini LED lamp plate, MCU chip and integrated circuit electric connection, Mini LED driver chip passes through the data line with the MCU chip and is connected, the second connector passes through the data line and is connected with Mini LED driver chip, and the second connector passes through the PC conversion line and is connected with Mini LED lamp plate, first connector passes through the data line with the MCU chip and is connected, the LCD display screen passes through the data line with Mini LED lamp plate and is connected, the inside LCD driver chip that has inlayed of LCD display screen, and the LCD driver chip passes through the PC conversion line and is connected with first connector.
More preferably, the power supply device further comprises a power supply chip and a guest power supply interface, wherein the power supply chip is electrically connected with the MCU chip, and the guest power supply interface is electrically connected with the power supply chip.
More preferably, the system further comprises a communication interface used by a client, and the communication interface used by the client is connected with the MCU chip through a data line.
From the above, it can be seen that the beneficial effects of the present invention are: according to the invention, the LED bare chip on the Mini LED lamp panel emits blue light, the brightness of the blue light of the lamp panel is improved through the blue light enhancement film, the blue light is converted into white light through the QD film, and finally the front side is uniformly illuminated through the stacking of conventional films; the economical and reliable lamp panel principle is achieved by the aid of the serial connection and the block division control; compared with the traditional side-emitting LED backlight source, the Mini LED module scheme provided by the invention has more advantages and is suitable for matching with a high-end liquid crystal display solution: the color effect can be compared to that of an OLED; the Mini LED can achieve high brightness (1000nit) and color saturation that traditional discrete LED schemes cannot compare; most importantly, the Mini LED lamp panel technology can be combined with fine Local Dimming Zones to achieve the effect that a High Dynamic Range (HDR) presents high contrast of 1000000:1, so that the black and white in the picture are darker, and the color is more natural and gorgeous.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a Mini LED lamp panel principle logic scheme in the present invention;
fig. 3 is a block diagram of a control circuit of the Mini LED liquid crystal display module in the present invention.
In the reference symbols: 1.Mini LED lamp panel; 2. a blue light enhancement film; a QD film; 4. a lower diffusion film; 5. a lower brightness enhancement film; 6, a bright enhancement film is arranged; 7. an upper diffusion film; 8. a second connector; a Mini LED driving chip; 10, MCU chip; 11. an integrated circuit; 12. a power supply chip; 13. a guest power supply interface; 14. the customer uses a communication interface; 15. a first connector; an LCD display screen; 161 LCD driver chip.
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 specific embodiments and the accompanying drawings.
It is to be noted that technical terms or scientific terms used in the embodiments of the present invention should have the ordinary meanings as understood by those having ordinary skill in the art to which the present disclosure belongs, unless otherwise defined. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Examples
Referring to fig. 1 to 3, a Mini LED liquid crystal display module includes a Mini LED lamp panel 1, a blue light enhancement film 2 and a QD film 3, wherein the blue light enhancement film 2 is attached to the surface of the Mini LED lamp panel 1, and the QD film 3 is attached to a side surface of the blue light enhancement film 2 away from the Mini LED lamp panel 1.
As a modification of the above, a lower diffusion film 4 is further included, and the lower diffusion film 4 is attached to a side of the QD film 3 away from the blue enhancement film 2.
As a modification of the above, the liquid crystal display further includes a lower brightness enhancement film 5, and the lower brightness enhancement film 5 is attached to a side of the lower diffusion film 4 away from the QD film 3.
As a modification of the above, the light diffusion film further includes an upper brightness enhancement film 6, and the upper brightness enhancement film 6 is attached to one side surface of the lower brightness enhancement film 5 away from the lower diffusion film 4.
As a modification of the above, the light source device further includes an upper diffusion film 7, and the upper diffusion film 7 is attached to a side surface of the upper brightness enhancement film 6 away from the lower brightness enhancement film 5.
A control circuit of a Mini LED liquid crystal display module comprises a Mini LED liquid crystal display module, an integrated circuit 11, an MCU chip 10, a Mini LED driving chip 9, a second connector 8, a first connector 15 and an LCD display screen 16, the Mini LED liquid crystal display module comprises a Mini LED lamp panel 1, the MCU chip 10 is electrically connected with an integrated circuit 11, the Mini LED driving chip 9 is connected with the MCU chip 10 through a data line, the second connector 8 is connected with the Mini LED driving chip 9 through a data line, and the second connector 8 is connected with the Mini LED lamp panel 1 through a PC conversion line, the first connector 15 is connected with the MCU chip 10 through a data line, the LCD display screen 16 is connected with the Mini LED lamp panel 1 through a data line, an LCD driving chip 161 is embedded in the LCD display screen 16, and the LCD driving chip 161 is connected to the first connector 15 through a PC switching line.
As an improvement of the above scheme, the system further comprises a power supply chip 12 and a guest power supply interface 13, wherein the power supply chip 12 is electrically connected with the MCU chip 10, and the guest power supply interface 13 is electrically connected with the power supply chip 12.
As a modification of the above scheme, the method further comprises a client use communication interface 14, and the client use communication interface 14 is connected with the MCU chip 10 through a data line.
In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the present invention. The foregoing description is only a preferred embodiment of the invention, which can be embodied in many different forms than described herein, and therefore the invention is not limited to the specific embodiments disclosed above. And that those skilled in the art may, using the methods and techniques disclosed above, make numerous possible variations and modifications to the disclosed embodiments, or modify equivalents thereof, without departing from the scope of the claimed embodiments. Any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.
Claims (8)
1. The utility model provides a Mini LED liquid crystal display module which characterized in that includes:
a Mini LED lamp panel (1);
the blue light enhancement film (2), the blue light enhancement film (2) is attached to the surface of the Mini LED lamp panel (1); and
the QD film (3) is attached to one side face, away from the Mini LED lamp panel (1), of the blue light enhancement film (2).
2. The Mini LED liquid crystal display module set forth in claim 1, further comprising a lower diffusion film (4), wherein the lower diffusion film (4) is attached to a side of the QD film (3) away from the blue light enhancement film (2).
3. The Mini LED liquid crystal display module set forth in claim 2, further comprising a lower brightness enhancement film (5), wherein the lower brightness enhancement film (5) is attached to a side of the lower diffusion film (4) away from the QD film (3).
4. The Mini LED liquid crystal display module set according to claim 3, further comprising an upper brightness enhancement film (6), wherein the upper brightness enhancement film (6) is attached to one side surface of the lower brightness enhancement film (5) far away from the lower diffusion film (4).
5. The Mini LED liquid crystal display module set according to claim 4, further comprising an upper diffusion film (7), wherein the upper diffusion film (7) is attached to one side surface of the upper brightness enhancement film (6) away from the lower brightness enhancement film (5).
6. A control circuit of a Mini LED liquid crystal display module is characterized by comprising:
the Mini LED liquid crystal display module comprises a Mini LED lamp panel (1);
an integrated circuit (11);
the MCU chip (10), the said MCU chip (10) is connected with integrated circuit (11) electrically;
the Mini LED driving chip (9), wherein the Mini LED driving chip (9) is connected with the MCU chip (10) through a data line;
the second connector (8) is connected with the Mini LED driving chip (9) through a data line, and the second connector (8) is connected with the Mini LED lamp panel (1) through a PC conversion line;
the first connector (15), the said first connector (15) is connected with MCU chip (10) through the data link; and
LCD display screen (16), LCD display screen (16) and Mini LED lamp plate (1) pass through the data line and are connected, LCD display screen (16) are inside to be inlayed LCD driver chip (161), and LCD driver chip (161) pass through the PC conversion line and are connected with first connector (15), LCD display screen (16) pass through the data line and are connected with Mini LED lamp plate (1).
7. The control circuit of a Mini LED liquid crystal display module according to claim 6, further comprising:
the power supply chip (12), the power supply chip (12) is electrically connected with the MCU chip (10); and
and the guest power supply interface (13) is electrically connected with the power supply chip (12).
8. The control circuit of a Mini LED liquid crystal display module according to claim 7, further comprising a customer use communication interface (14), wherein said customer use communication interface (14) is connected with the MCU chip (10) through a data line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110986007.5A CN114019716A (en) | 2021-08-26 | 2021-08-26 | Mini LED liquid crystal display module and control circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110986007.5A CN114019716A (en) | 2021-08-26 | 2021-08-26 | Mini LED liquid crystal display module and control circuit thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114019716A true CN114019716A (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110986007.5A Pending CN114019716A (en) | 2021-08-26 | 2021-08-26 | Mini LED liquid crystal display module and control circuit thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140211448A1 (en) * | 2013-01-30 | 2014-07-31 | Shenzhen China Star Optoelectronics Technology Co. Ltd. | Backlight Module and Liquid Crystal Display Device |
| US20150160401A1 (en) * | 2013-12-06 | 2015-06-11 | Japan Display Inc. | Backlight and liquid-crystal display apparatus using the same |
| CN109239979A (en) * | 2018-11-23 | 2019-01-18 | 深圳市国显科技有限公司 | A kind of Mini LED direct-type backlight LCM liquid crystal display die set and brightness control method |
| CN109471298A (en) * | 2018-10-18 | 2019-03-15 | 广东普加福光电科技有限公司 | A kind of miniature LED LCD backlight structure and preparation method thereof based on quantum dot |
| CN109976041A (en) * | 2019-04-10 | 2019-07-05 | 苏州乐轩科技有限公司 | Light-emitting diode backlight module |
| CN110581150A (en) * | 2018-06-08 | 2019-12-17 | 鼎茂光电股份有限公司 | display device |
| CN110609410A (en) * | 2019-09-23 | 2019-12-24 | 京东方科技集团股份有限公司 | Display device and manufacturing method |
| CN112735259A (en) * | 2021-01-18 | 2021-04-30 | 东莞市德普特电子有限公司 | Mini LED backlight source structure for realizing high brightness and display device |
-
2021
- 2021-08-26 CN CN202110986007.5A patent/CN114019716A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140211448A1 (en) * | 2013-01-30 | 2014-07-31 | Shenzhen China Star Optoelectronics Technology Co. Ltd. | Backlight Module and Liquid Crystal Display Device |
| US20150160401A1 (en) * | 2013-12-06 | 2015-06-11 | Japan Display Inc. | Backlight and liquid-crystal display apparatus using the same |
| CN110581150A (en) * | 2018-06-08 | 2019-12-17 | 鼎茂光电股份有限公司 | display device |
| CN109471298A (en) * | 2018-10-18 | 2019-03-15 | 广东普加福光电科技有限公司 | A kind of miniature LED LCD backlight structure and preparation method thereof based on quantum dot |
| CN109239979A (en) * | 2018-11-23 | 2019-01-18 | 深圳市国显科技有限公司 | A kind of Mini LED direct-type backlight LCM liquid crystal display die set and brightness control method |
| CN109976041A (en) * | 2019-04-10 | 2019-07-05 | 苏州乐轩科技有限公司 | Light-emitting diode backlight module |
| CN110609410A (en) * | 2019-09-23 | 2019-12-24 | 京东方科技集团股份有限公司 | Display device and manufacturing method |
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