CN114913820A - Mini-LED partition design method - Google Patents
Mini-LED partition design method Download PDFInfo
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- CN114913820A CN114913820A CN202210510063.6A CN202210510063A CN114913820A CN 114913820 A CN114913820 A CN 114913820A CN 202210510063 A CN202210510063 A CN 202210510063A CN 114913820 A CN114913820 A CN 114913820A
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- display area
- led
- mini
- main display
- secondary display
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
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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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention discloses a Mini-LED partition design method, which comprises the following steps: dividing the panel display area into a main display area and a secondary display area, wherein the main display area is positioned in the center, and the secondary display area is distributed at the peripheral edge of the main display area; step two: the main display area is formed by an LED through a PCB packaged by NCSP, and the LED lamp bead driving mode of the main display area adopts an active driving circuit and is driven by a GIP device in a cascade mode; step three: the secondary display area is formed by splicing a plurality of PCBs (printed Circuit boards) packaged by COB (chip on Board) of LEDs, and a semi-active driving circuit is adopted in the driving mode of LED lamp beads of the secondary display area; according to the brand-new Mini-LED backlight driving design, current induction driving is achieved through the Pixel driving electrodes on the LCD panel on the upper layer of the Mini-LED backlight, the TFT devices are designed on the Mini-LED back plate to achieve accurate control over LED lamp beads, the use of ICs is reduced while the backlight is divided into ten thousand grades, the Mini-LED backlight multi-stage division is achieved by using different packaging methods, the cost is reduced, and the process difficulty is reduced.
Description
Technical Field
The invention belongs to the technical field of LED display, and particularly relates to a Mini-LED partition design method.
Background
In recent years, with the rapid development of semiconductor display technology, Mini-LED technology is applied to LCD flat panel displays, making it possible to realize High Contrast Ratio (HCR) and High Dynamic Range (HDR). Compared with an OLED display panel based on phosphorescent organic materials, the LCD display panel with the Mini-LED as the backlight achieves nearly the same display effect, has longer service life and lower cost, and is suitable for middle-size and large-size LCD panels. However, due to the limitation of materials, in the current Mini-LED technology, when realizing a backlight multi-level region, a corresponding driving circuit needs to be provided for a Mini-LED back plate, and an IC needs to perform corresponding driving control, which undoubtedly increases the manufacturing cost of the Mini-LED backlight.
Disclosure of Invention
The invention aims to provide a Mini-LED partition design method to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a Mini-LED partition design method comprises the following steps: dividing the panel display area into a main display area and a secondary display area, wherein the main display area is positioned in the center, and the secondary display area is distributed at the peripheral edge of the main display area;
step two: the main display area is formed by an LED through a PCB packaged by NCSP, and the LED lamp bead driving mode of the main display area adopts an active driving circuit and is driven by a GIP device in a cascade mode;
step three: the secondary display area is formed by splicing a plurality of PCB boards packaged by COB (chip on board) of the LED, a semi-active driving circuit is adopted in the LED lamp bead driving mode of the secondary display area, the secondary display area integrated by a plurality of PCB boards is driven by one IC (integrated circuit), and the luminous efficiency of the LED lamp beads in the secondary display area is close to that of the LED lamp beads in the main display area.
Preferably, the secondary display area occupies 20% of the peripheral edge of the panel display area, and is uniformly distributed, so that the LED density decreases from the display central area to the outside.
Preferably, COB encapsulation is that LED lamp pearl lug beading in secondary display area is on the PCB board in main display area, and it is convenient fast to seal the form.
Preferably, the NCSP is five-surface luminous, and in order to enable the light type to be more open, the top shading layer is made of titanium dioxide, so that the top shading layer has a semi-reflecting and semi-transmitting function, and the LED light can be turned on.
Compared with the prior art, the invention has the beneficial effects that: the invention provides a brand-new Mini-LED backlight driving design, which realizes current induction driving through a Pixel driving electrode on an LCD panel on the upper layer of the Mini-LED backlight, realizes accurate control on LED lamp beads by designing a TFT (thin film transistor) device on a Mini-LED backboard, reduces the use of ICs (integrated circuits) while realizing ten-thousand-level backlight partitioning, realizes multi-level Mini-LED backlight partitioning by utilizing different packaging methods, reduces the cost and reduces the process difficulty.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic diagram of driving a secondary display area according to the present invention;
fig. 3 is a driving schematic diagram of a main display area of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1 to 3, the present invention provides a technical solution: a Mini-LED partition design method comprises the following steps: dividing the panel display area into a main display area and a secondary display area, wherein the main display area is positioned in the center, and the secondary display area is distributed at the peripheral edge of the main display area; the LED density is decreased from the central display area to the outside;
step two: the main display area is formed by an LED through a PCB packaged by NCSP, and the LED lamp bead driving mode of the main display area adopts an active driving circuit and is driven by a GIP device in a cascade mode; compared with the TFT substrate, the main purpose is to save cost, reduce the use of IC, and have higher driving efficiency;
step three: the secondary display area is formed by splicing a plurality of PCB boards packaged by COB (chip on board) of the LED, a semi-active driving circuit is adopted in the LED lamp bead driving mode of the secondary display area, the secondary display area integrated by a plurality of PCB boards is driven by one IC (integrated circuit), and the luminous efficiency of the LED lamp beads in the secondary display area is close to that of the LED lamp beads in the main display area.
In this embodiment, preferably, the secondary display area occupies 20% of the peripheral edge of the panel display area, and is uniformly distributed; in this embodiment, preferably, the COB packaging means that the LED lamp beads of the secondary display area are directly soldered on the PCB board of the primary display area; in this embodiment, preferably, NCSP is five-sided light emitting, and in order to make the light type open more, the top light shield layer uses titanium white, has the function of semi-reflecting and semi-permeable, can make LED light open, and the lamp pearl quantity that uses under the same OD is still less.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A Mini-LED partition design method is characterized in that: the method comprises the following steps: dividing the panel display area into a main display area and a secondary display area, wherein the main display area is positioned in the center, and the secondary display area is distributed at the peripheral edge of the main display area;
step two: the main display area is formed by an LED through a PCB packaged by NCSP, and the LED lamp bead driving mode of the main display area adopts an active driving circuit and is driven by a GIP device in a cascade mode;
step three: the secondary display area is formed by splicing a plurality of PCB boards packaged by COB (chip on board) of the LED, a semi-active driving circuit is adopted in the LED lamp bead driving mode of the secondary display area, the secondary display area integrated by a plurality of PCB boards is driven by one IC (integrated circuit), and the luminous efficiency of the LED lamp beads in the secondary display area is close to that of the LED lamp beads in the main display area.
2. The Mini-LED partition design method of claim 1, wherein: the secondary display area accounts for 20% of the peripheral edge of the panel display area and is uniformly distributed.
3. The Mini-LED partition design method of claim 1, wherein: COB packaging is that LED lamp beads of the secondary display area are directly welded on a PCB of the primary display area.
4. The Mini-LED partition design method of claim 1, wherein: the NCSP is five-sided luminous, and in order to make the light type open, the top shading layer uses titanium dioxide, has the function of semi-reflection and semi-permeability, can make LED light open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210510063.6A CN114913820B (en) | 2022-05-11 | 2022-05-11 | Mini-LED partition design method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210510063.6A CN114913820B (en) | 2022-05-11 | 2022-05-11 | Mini-LED partition design method |
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| Publication Number | Publication Date |
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| CN114913820A true CN114913820A (en) | 2022-08-16 |
| CN114913820B CN114913820B (en) | 2023-01-31 |
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| CN202210510063.6A Active CN114913820B (en) | 2022-05-11 | 2022-05-11 | Mini-LED partition design method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11929044B1 (en) | 2022-11-30 | 2024-03-12 | HKC Corporation Limited | Backlight module and display apparatus |
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|---|---|---|---|---|
| JP2005353507A (en) * | 2004-06-14 | 2005-12-22 | Toyoda Gosei Co Ltd | Backlight device |
| CN109725458A (en) * | 2017-10-31 | 2019-05-07 | 乐金显示有限公司 | Back light unit and liquid crystal display device including back light unit |
| CN109935173A (en) * | 2019-03-29 | 2019-06-25 | 上海天马微电子有限公司 | A kind of display module and display device |
| CN111312068A (en) * | 2020-04-02 | 2020-06-19 | 深圳创维－Rgb电子有限公司 | Mini lamp bead, manufacturing method, backlight source and display device |
| CN211238242U (en) * | 2019-05-16 | 2020-08-11 | 东莞市高博影视器材有限公司 | Double-color adjustable LED |
| CN112151591A (en) * | 2020-09-30 | 2020-12-29 | 武汉天马微电子有限公司 | Display panel and display device |
| CN212847514U (en) * | 2020-09-30 | 2021-03-30 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN113703224A (en) * | 2021-08-26 | 2021-11-26 | 安徽芯瑞达科技股份有限公司 | Four-wafer Mini LED backlight module |
| CN216213448U (en) * | 2021-10-28 | 2022-04-05 | 盐城东山精密制造有限公司 | Integrated RGB packaging structure of little integrated wick |
-
2022
- 2022-05-11 CN CN202210510063.6A patent/CN114913820B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005353507A (en) * | 2004-06-14 | 2005-12-22 | Toyoda Gosei Co Ltd | Backlight device |
| CN109725458A (en) * | 2017-10-31 | 2019-05-07 | 乐金显示有限公司 | Back light unit and liquid crystal display device including back light unit |
| CN109935173A (en) * | 2019-03-29 | 2019-06-25 | 上海天马微电子有限公司 | A kind of display module and display device |
| CN211238242U (en) * | 2019-05-16 | 2020-08-11 | 东莞市高博影视器材有限公司 | Double-color adjustable LED |
| CN111312068A (en) * | 2020-04-02 | 2020-06-19 | 深圳创维－Rgb电子有限公司 | Mini lamp bead, manufacturing method, backlight source and display device |
| CN112151591A (en) * | 2020-09-30 | 2020-12-29 | 武汉天马微电子有限公司 | Display panel and display device |
| CN212847514U (en) * | 2020-09-30 | 2021-03-30 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN113703224A (en) * | 2021-08-26 | 2021-11-26 | 安徽芯瑞达科技股份有限公司 | Four-wafer Mini LED backlight module |
| CN216213448U (en) * | 2021-10-28 | 2022-04-05 | 盐城东山精密制造有限公司 | Integrated RGB packaging structure of little integrated wick |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11929044B1 (en) | 2022-11-30 | 2024-03-12 | HKC Corporation Limited | Backlight module and display apparatus |
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| CN114913820B (en) | 2023-01-31 |
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