CN212112052U - COF liquid crystal display module - Google Patents
COF liquid crystal display module Download PDFInfo
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- CN212112052U CN212112052U CN202021166848.9U CN202021166848U CN212112052U CN 212112052 U CN212112052 U CN 212112052U CN 202021166848 U CN202021166848 U CN 202021166848U CN 212112052 U CN212112052 U CN 212112052U
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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
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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
- G09G3/36—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 using liquid crystals
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The utility model discloses a COF liquid crystal display module, include: a liquid crystal display panel and a COF driving module; the COF driving module comprises an FPC submodule and a COG driving submodule; the COG drive submodule and the FPC submodule are bonded; the COG drive submodule is respectively connected with the liquid crystal display panel and the external control module through the FPC submodule. The utility model discloses a design, effectively solved current COF solution because of the too big produced puzzlement of circuit machining precision lower limit, the circuit size can reach the level that equals with COG solution's conventional size, can seamless compatible mainstream chip in the current display panel field, has greatly reduced the COF cost, and the design is exquisite, really realizes upgrading and upgrading, is worth the society and widelys promoting.
Description
Technical Field
The utility model relates to a liquid crystal display technology field especially relates to a COF liquid crystal display module.
Background
In the field of liquid crystal display modules, the current mainstream solution is the COG technology, and referring to fig. 1, a wider step 2a needs to be left at the edge of a panel 1a for placing a chip 3a by adopting the COG solution. When the COF technology is adopted by the panel with the same size, the resolution ratio can be higher than that of the liquid crystal display module adopting the COG technology because no chip occupies a part of the area of the panel, so that the area occupation ratio of a display area is improved, and the COF technology is the future development trend of the liquid crystal display module.
At present, the existing COF solution is greatly limited due to insufficient line precision of the FPC, the line precision of the existing FPC is generally limited by the line width/line distance reaching 40/40um, the line with the highest precision in the global range can reach the size of 20/20um, and the cost is extremely high; this is far from the conventional size (about 10 um) of the COG solution, which causes the COF solution to be greatly limited in chip type selection and greatly increases the chip cost, so how to break through the trouble caused by the excessively large lower limit of the line precision of the FPC becomes a problem to be solved urgently in the development of the COF technology.
Based on this, the utility model discloses and research and development.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide a COF liquid crystal display module.
The technical scheme of the utility model as follows:
a COF liquid crystal display module includes: a liquid crystal display panel and a COF driving module; the COF driving module comprises an FPC submodule and a COG driving submodule; the COG drive submodule and the FPC submodule are bonded; the COG drive submodule is respectively connected with the liquid crystal display panel and the external control module through the FPC submodule; when the display panel is used, a control signal output by the external control module is input into the COG drive submodule through the FPC submodule, the COG drive submodule generates a drive signal according to the control signal, and the drive signal is output to the liquid crystal display panel through the FPC submodule, so that the liquid crystal display panel is driven to display corresponding contents.
Preferably, the FPC sub-module includes a first FPC cable and a second FPC cable; the liquid crystal display panel is connected to the COG drive submodule through the first FPC flat cable; the COG driver submodule is connected to the external control module through the second FPC flat cable.
Preferably, the COG driving sub-module comprises COG glass arranged on the FPC sub-module and a driving chip arranged on the COG glass; the COG glass is bonded with the driving chip; the COG glass is respectively connected with the first FPC flat cable and the second FPC flat cable, and the liquid crystal display panel is connected to the driving chip through the first FPC flat cable and the COG glass; the driving chip is connected to the external control module through the COG glass and the second FPC flat cable.
Preferably, the COG glass and the FPC sub-module are in a four-side bonded fully-enclosed structure.
Preferably, the COG glass and the FPC sub-module are of a three-edge bonded semi-enclosed structure.
Preferably, the COG glass includes a first lead and a second lead, the first lead is connected to the first FPC cable, and the second lead is connected to the second FPC cable; the liquid crystal display screen is connected to the driving chip through a first FPC flat cable and a first lead, and the driving chip is connected to the external control module through a second lead and a second FPC flat cable.
Preferably, the COG glass is ITO glass.
By adopting the scheme, the utility model discloses following beneficial effect has:
1. the design of the utility model effectively solves the puzzlement of the prior COF solution caused by overlarge lower limit of the circuit precision of the FPC, the circuit size can reach the level equal to the conventional size of the COG solution, the COF solution can be seamlessly compatible with the mainstream chip in the prior display panel field, the COF cost is greatly reduced, the design is exquisite, the upgrading and updating are really realized, and the COF solution is worthy of social and vigorous popularization;
2. in the preferred scheme, the utility model discloses realize separating traditional COG glass's step and demonstration district, can do the enhancement processing such as copper facing, silvering, gilding, heavy gold to COG's circuit, compare with traditional COG solution and can stop galvanic corrosion phenomenon, and improve power supply capacity, promote the display effect; in addition, after the COG step is removed, the line precision of the liquid crystal display panel can be reduced by one order of magnitude, the processing difficulty is greatly reduced, the product yield is improved, the requirement on the processing technology is reduced, the dependence on high-end equipment and raw materials is reduced, the production cost is reduced, the energy conservation and the environmental protection are facilitated, and the method is worthy of being popularized in the society vigorously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a prior art COG solution;
fig. 2 is a schematic structural diagram of a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The first embodiment is as follows:
referring to fig. 2, the present embodiment provides a COF liquid crystal display module, including: a liquid crystal display panel 1 and a COF driving module 2; the COF driving module 2 comprises an FPC submodule 21 and a COG driving submodule 22; the COG driving submodule 22 is bonded with the FPC submodule 21; the COG driver submodule 22 is respectively connected with the liquid crystal display panel 1 and an external control module through the FPC submodule 21; when in use, a control signal output by the external control module is input into the COG driver submodule 22 through the FPC submodule 21, the COG driver submodule 22 generates a driving signal according to the control signal, and the driving signal is output to the liquid crystal display panel 1 through the FPC submodule 21 so as to drive the liquid crystal display panel 1 to display corresponding content;
the COG driver sub-module 22 and the FPC sub-module 21 are of a fully-enclosed structure with four sides bound.
In this embodiment, the COG driving sub-module 22 includes COG glass 221 disposed on the FPC sub-module 21 and a driving chip 222 disposed on the COG glass 221; the COG glass 221 is bonded to the driving chip 222; the COG glass 221 includes a first lead 2211 and a second lead 2212, correspondingly, the FPC sub-module 21 includes a first FPC flat cable 211 and a second FPC flat cable 212, the first lead 2211 is connected to the first FPC flat cable 211, the second lead 2212 is connected to the second FPC flat cable 212, the liquid crystal display panel is connected to the driver chip 222 through the first FPC flat cable 211 and the first lead 2211, and the driver chip 222 is connected to the external control module through the second lead 2212 and the second FPC flat cable 212;
further, the COG glass 221 and the FPC sub-module 21 are of a four-side bonded fully-enclosed structure.
In this embodiment, the COG glass 221 is ITO glass.
In this embodiment, the first lead 2211 and the second lead 2212 are subjected to any one of copper plating, silver plating, gold plating and gold immersion, so that the first lead 2211 and the second lead 2212 can be effectively prevented from being corroded, and the service life of the first lead 2211 and the second lead 2212 can be prolonged.
The utility model discloses working process and principle as follows: first, the external control module generates a control signal, the control signal is input to the driving chip 222 through the second FPC flat cable 212 and the second lead 2212, the driving chip 222 generates a driving signal according to the received control signal, and the driving signal is output to the liquid crystal display panel 1 through the first lead 2211 and the first FPC flat cable 211, so as to drive the liquid crystal display panel 1 to display corresponding content.
Example two:
referring to fig. 3, the present embodiment provides a COF liquid crystal display module, which is basically the same as the first embodiment in terms of composition and structural layout, except that: the COG driver sub-module 22 and the FPC sub-module 21 are of a three-side bonded semi-enclosed structure.
The COF liquid crystal display module provided by the embodiment has the same technical effect as the first embodiment.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a design, effectively solved current COF solution because of the too big produced puzzlement of FPC's circuit precision lower limit, the circuit size can reach the level that equals with COG solution's conventional size, can seamlessly compatible the mainstream chip in current display panel field, has greatly reduced the COF cost, and the design is exquisite, really realizes upgrading.
2. In the preferred scheme, the utility model discloses realize separating traditional COG glass's step and demonstration district, can do the enhancement processing such as copper facing, silvering, gilding, heavy gold to COG's circuit, compare with traditional COG solution and can stop galvanic corrosion phenomenon, and improve power supply capacity, promote the display effect; in addition, after the COG step is removed, the line precision of the liquid crystal display panel can be reduced by one order of magnitude, the processing difficulty is greatly reduced, the product yield is improved, the requirement on the processing technology is reduced, the dependence on high-end equipment and raw materials is reduced, the production cost is reduced, the energy conservation and the environmental protection are facilitated, and the method is worthy of being popularized in the society vigorously.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A COF liquid crystal display module is characterized by comprising: a liquid crystal display panel and a COF driving module; the COF driving module comprises an FPC submodule and a COG driving submodule; the COG drive submodule and the FPC submodule are bonded; the COG drive submodule is respectively connected with the liquid crystal display panel and the external control module through the FPC submodule; when the display panel is used, a control signal output by the external control module is input into the COG drive submodule through the FPC submodule, the COG drive submodule generates a drive signal according to the control signal, and the drive signal is output to the liquid crystal display panel through the FPC submodule, so that the liquid crystal display panel is driven to display corresponding contents.
2. The COF liquid crystal display module of claim 1, wherein the FPC sub-module comprises a first FPC flex cable and a second FPC flex cable; the liquid crystal display panel is connected to the COG drive submodule through the first FPC flat cable; the COG driver submodule is connected to the external control module through the second FPC flat cable.
3. The COF liquid crystal display module of claim 2, wherein the COG driver sub-module comprises COG glass disposed on the FPC sub-module and a driver chip disposed on the COG glass; the COG glass is bonded with the driving chip; the COG glass is respectively connected with the first FPC flat cable and the second FPC flat cable, and the liquid crystal display panel is connected to the driving chip through the first FPC flat cable and the COG glass; the driving chip is connected to the external control module through the COG glass and the second FPC flat cable.
4. The COF liquid crystal display module of claim 3, wherein the COG glass and the FPC sub-module are in a quad-enclosed structure.
5. The COF liquid crystal display module of claim 3, wherein the COG glass and the FPC sub-module are three-side bonded semi-enclosed structures.
6. The COF liquid crystal display module of claim 3, wherein the COG glass comprises a first lead and a second lead, the first lead is connected with the first FPC cable, and the second lead is connected with the second FPC cable; the liquid crystal display screen is connected to the driving chip through a first FPC flat cable and a first lead, and the driving chip is connected to the external control module through a second lead and a second FPC flat cable.
7. The COF liquid crystal display module of claim 3, wherein the COG glass is ITO glass.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021166848.9U CN212112052U (en) | 2020-06-22 | 2020-06-22 | COF liquid crystal display module |
| PCT/CN2021/074790 WO2021258736A1 (en) | 2020-06-22 | 2021-02-02 | Cof driving module, cof display module, and methods for manufacturing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021166848.9U CN212112052U (en) | 2020-06-22 | 2020-06-22 | COF liquid crystal display module |
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| Publication Number | Publication Date |
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| CN212112052U true CN212112052U (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021166848.9U Active CN212112052U (en) | 2020-06-22 | 2020-06-22 | COF liquid crystal display module |
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| Country | Link |
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| CN (1) | CN212112052U (en) |
| WO (1) | WO2021258736A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021258736A1 (en) * | 2020-06-22 | 2021-12-30 | 深圳市全洲自动化设备有限公司 | Cof driving module, cof display module, and methods for manufacturing same |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3063831B2 (en) * | 1997-08-11 | 2000-07-12 | 日本電気株式会社 | Display device and manufacturing method thereof |
| JP2004020703A (en) * | 2002-06-13 | 2004-01-22 | Nanox Corp | Liquid crystal display device |
| JP4938239B2 (en) * | 2004-04-23 | 2012-05-23 | シャープ株式会社 | Display device |
| KR100652519B1 (en) * | 2005-07-18 | 2006-12-01 | 삼성전자주식회사 | Tape substrate comprising dual metal layer and chip on film package using the same |
| JP4588748B2 (en) * | 2007-09-25 | 2010-12-01 | Ｏｋｉセミコンダクタ株式会社 | COF package |
| CN201298121Y (en) * | 2008-10-31 | 2009-08-26 | 厦门赛特勒电子有限公司 | LCD module with improved drive chip package structure |
| CN204065606U (en) * | 2014-09-16 | 2014-12-31 | 冀雅(廊坊)电子有限公司 | A kind of COG LCD MODULE |
| JP2020030298A (en) * | 2018-08-22 | 2020-02-27 | 株式会社ジャパンディスプレイ | Display device and integrated circuit module |
| CN209895115U (en) * | 2019-05-10 | 2020-01-03 | 深圳市优丽达科技有限公司 | Liquid crystal driving chip packaging structure |
| CN111179755A (en) * | 2020-01-03 | 2020-05-19 | 京东方科技集团股份有限公司 | Chip packaging structure and display device |
| CN212112052U (en) * | 2020-06-22 | 2020-12-08 | 深圳市全洲自动化设备有限公司 | COF liquid crystal display module |
-
2020
- 2020-06-22 CN CN202021166848.9U patent/CN212112052U/en active Active
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2021
- 2021-02-02 WO PCT/CN2021/074790 patent/WO2021258736A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021258736A1 (en) * | 2020-06-22 | 2021-12-30 | 深圳市全洲自动化设备有限公司 | Cof driving module, cof display module, and methods for manufacturing same |
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| Publication number | Publication date |
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| WO2021258736A1 (en) | 2021-12-30 |
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