CN106815048B - Manufacturing method of driving unit and display device comprising driving unit - Google Patents
Manufacturing method of driving unit and display device comprising driving unit Download PDFInfo
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- CN106815048B CN106815048B CN201611243194.3A CN201611243194A CN106815048B CN 106815048 B CN106815048 B CN 106815048B CN 201611243194 A CN201611243194 A CN 201611243194A CN 106815048 B CN106815048 B CN 106815048B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 238000005520 cutting process Methods 0.000 claims abstract description 58
- 238000000034 method Methods 0.000 claims abstract description 18
- 238000003860 storage Methods 0.000 claims abstract description 16
- 239000000523 sample Substances 0.000 claims abstract description 14
- 230000006870 function Effects 0.000 claims description 27
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 14
- 239000000463 material Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
- G06F21/79—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data in semiconductor storage media, e.g. directly-addressable memories
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
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Abstract
The application discloses a display device and a manufacturing method for manufacturing a driving unit in the display device. The display device comprises a display panel and a driving unit; the driving unit includes: a flexible circuit board; the memory chip is positioned on the flexible circuit board and is electrically connected with the flexible circuit board; the burning contact is positioned on the flexible circuit board and is electrically connected with the storage chip; the burning lead is positioned on the flexible circuit board and is connected with the storage chip and the burning contact; and the cutting line is positioned between the memory chip and the burning contact. The manufacturing method for manufacturing the driving unit in the display device includes: providing a burning device with a burning probe; and cutting off the burning contact along the cutting line after the burning is finished. Therefore, on one hand, an interface for reading data is removed, and the risk of data leakage is reduced; on the other hand, the burning contact is not required to be subjected to additional insulation treatment, so that the process steps are reduced, and the production efficiency is improved.
Description
Technical Field
The present disclosure relates generally to the field of display technologies, and more particularly, to a method for manufacturing a driving unit and a display device including the driving unit.
Background
With the development of display technologies, in order to improve display effects and meet more demands for new functions of display, technologies for adding memory chips to realize the functions are developed. For example: in order to solve the problems of luminous efficiency and luminous uniformity of the organic light emitting display panel, a memory chip having a compensation function may be added. After the memory chip 11 is bonded to the flexible circuit board 1(FPC), the memory chip must be burned with data in order to achieve such a function. Referring to fig. 1, the current practice is to connect the burning pins of the memory chip to the position of the flexible circuit board connector 14 through the leads 12, and burn data through the connector 14. This increases the number of pins written into the interface of the connector 14, increases the size of the connector, and changes the lighting jig related thereto, which cannot meet the customer's needs. In view of information security, after the connector is used for storing data in the memory chip, other people take the FPC, and can easily read out the information stored in the memory chip through the connector, which is not beneficial to information security.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a display device and a method of manufacturing a driving unit included in the display device, which are intended to solve the technical problems in the prior art.
In one aspect, the present application discloses a display device including a driving unit; the driving unit includes: a flexible circuit board; the memory chip is positioned on the flexible circuit board and is electrically connected with the flexible circuit board; the burning contact is positioned on the flexible circuit board and is electrically connected with the storage chip; the burning lead is positioned on the flexible circuit board and is connected with the storage chip and the burning contact; and the cutting line is positioned between the memory chip and the burning contact.
In another aspect, an embodiment of the present application provides a method for manufacturing a driving unit in the display device, including:
providing a burning device with a burning probe;
contacting the burning probe with the burning contact;
performing a burning program, and withdrawing the burning probe after the burning program is completed;
cutting along the cutting line.
According to the scheme of the embodiment of the application, the storage chip is arranged on the flexible circuit board, the burning contact is arranged outside the cutting line, and is cut off after burning is completed, so that the safety of information in the storage chip can be guaranteed while the existing display function of the display device is enhanced or a new display function is displayed.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 shows a schematic block diagram of a prior art drive unit;
FIG. 2A shows a schematic block diagram of a drive unit of one embodiment of the present application;
FIG. 2B shows a schematic block diagram of the drive unit of FIG. 2A after burning;
FIG. 3A is a schematic block diagram of another drive unit according to an embodiment of the present application;
FIG. 3B shows a schematic block diagram of the drive unit of FIG. 3A after burning;
FIG. 4 is a schematic diagram illustrating the connection of a driving unit to a display panel according to an embodiment of the present application;
FIG. 5A is a step diagram illustrating a method of fabricating a drive unit according to an embodiment of the present application;
FIG. 5B is a schematic diagram illustrating a manufacturing process of the driving unit in the embodiment of FIG. 5A;
fig. 6 shows a schematic view of a display device of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 2A, a schematic structural diagram of a driving unit in one embodiment of the present application is shown. The display device of the application comprises a display panel and a driving unit. Wherein the driving unit includes: a flexible circuit board 1; the memory chip 11 is positioned on the flexible circuit board 1 and is electrically connected with the flexible circuit board 1; the burning contact 120 is positioned on the flexible circuit board 1 and is electrically connected with the storage chip; the burning lead 12 is positioned on the flexible circuit board 1 and connected with the storage chip 11 and the burning contact 120; and the cutting line 13 is positioned between the memory chip 11 and the burning contact 120. Specifically, the information of the burning device is transmitted into the memory chip 11 through the burning contact 120 and the burning lead 12. The burning lead 12 and the burning contact 120 are disposed on the flexible circuit board 1, so as to avoid the burning contact disposed at the position of the connector 14 in the prior art, so that the size of the connector 14 is increased, and the lighting fixture corresponding to the connector needs to be changed correspondingly, so that the cost is increased. In addition, in the prior art, a competitor can easily read data through the connector 14 after purchasing the display device, the burning contact is arranged outside the cutting line, and the burning contact is cut off after burning is completed, so that the competitor cannot read the data, and the information safety is protected.
The memory chip 11 is different from the driving chip and the touch chip in the prior art, and can enhance the functions of the display device, such as: when the display data volume is too large, the driving chip is not enough to meet the data processing, and the storage chip 11 can help the driving chip to process the data to display a better display effect; it can also implement new functions of display, such as: in order to solve the problems of luminous efficiency and uniformity of the organic light emitting display panel, the memory chip 11 may implement a compensation function. The key point for implementing the above functions is the data in the memory chip 11, and in order to burn the data implementing the above functions in the memory chip, the burning contact 120 must be set, and the data in the burning device is burned into the memory chip 11 through a preset program to implement the above functions. Of course, the data in the data storage device can be modified or read through a preset program, which brings hidden danger of data security. Therefore, it is a core idea of the present application to secure data while realizing the function of the memory chip 11. According to the method and the device, the burning contact is arranged outside the cutting line, so that the burning contact is cut after burning data, and the hidden danger that the data passes through the burning contact inclined path is avoided while the function of the storage chip 11 is realized.
Optionally, the cutting line 13 divides the drive unit into a reserved area and a cut area. The memory chip 11, the flexible circuit board connector 14, part of the burning leads 12 and most of the flexible circuit board are positioned in the reserved area; a small portion of the flexible circuit board, the burning contact 120 and a small portion of the burning lead 12 are located in the cutting area. The cutting area is cut by the cutting line 13 after the burn is completed, see fig. 2B. In some existing methods, the burning contact on the surface of the flexible circuit board needs to be attached with an insulating tape, which increases the material cost and the process cost. The burning contact is cut along the cutting area without using an insulating tape, so that the material and process cost is reduced, the burning contact is prevented from being exposed, and the risk of data leakage caused by reading data from the burning contact by a competitor is avoided.
In some optional embodiments of this embodiment, the cutting area is triangular, the cutting area is located at an included angle between two collar edges of the flexible circuit board, and the change of the existing flexible circuit board can be reduced to the greatest extent by setting the cutting area at the included angle of the flexible circuit board 1, without increasing the area of the existing flexible circuit board, which is beneficial to reducing the cost. As shown in fig. 2A. The cut drive unit is shown in fig. 2B, with the cut region cut away, leaving a reserved region. Optionally, the cutting zone has a first area S1, the retention zone has a second area S2, and the first area S1 is less than 10% of the second area S2, i.e., S1<0.1 × S2. The reserved area of the flexible circuit board 1 is designed with a circuit, if the area of the cutting area is larger, the design of the flexible circuit board circuit needs to be adjusted greatly, and if the area of the cutting area is smaller, the adjustment needs to be made smaller. And the cutting area is small, which is beneficial to reducing the material cost.
Referring to fig. 3A, which is a schematic structural diagram of a driving unit in other alternative embodiments of this embodiment, fig. 3B is a schematic structural diagram of the driving unit of fig. 3A after cutting. The difference from fig. 2A is that the cutting area is rectangular or square, the cutting area is located at the edge 15 of the flexible circuit board, and the straight line of the cutting line 13 is parallel to or coincident with the straight line of the edge 15 of the flexible circuit board. Alternatively, the straight line of the cutting line 13 coincides with the straight line of the flexible circuit board edge 15, as shown in fig. 3A. The cut drive unit is shown in fig. 3B, with the cut region cut away, leaving a reserved region. The flexible circuit board 1 arranged in this way is additionally provided with a cutting area relative to the existing flexible circuit board, the flexible circuit board circuit wiring design is not required to be adjusted relative to the existing flexible circuit board, the influence on the flexible circuit board wiring is small, and the flexible circuit board circuit design cost is reduced. Optionally, the cutting zone has a first area S1, the retention zone has a second area S2, and the first area S1 is less than 10% of the second area S2, i.e., S1<0.1 × S2. Too large area of the cutting area can cause material waste and material cost increase, and the small area of the cutting area is beneficial to reducing the material cost.
Fig. 4 is a schematic diagram illustrating a connection relationship between a driving unit and a display panel according to another embodiment of the present application. The display device of the present embodiment includes a display panel and a driving unit. The drive unit includes: a flexible circuit board; the memory chip 11 is positioned on the flexible circuit board and electrically connected with the flexible circuit board; the burning contact 120 is positioned on the flexible circuit board and is electrically connected with the storage chip; the burning lead 12 is positioned on the flexible circuit board and connected with the storage chip 11 and the burning contact 120; and the cutting line 13 is positioned between the memory chip 11 and the burning contact 120. Specifically, the information of the burning device is transmitted into the memory chip 11 through the burning contact 120 and the burning lead 12. The width of the connector 14 is not increased by arranging the burning leads 12 and the burning contacts 120 on the flexible circuit board, so that jig change is avoided, and cost is reduced.
In some alternative embodiments of the present application, a display device of the present application includes a display panel including a display area 100, and a non-display area 101 surrounding the display area, and a driving unit. The driving unit further comprises a press interface 16, wherein the press interface 16 is located in the non-display area 101 of the display panel and is used for communicating data between the display panel and the flexible circuit board.
Optionally, the memory chip 11 communicates with the display panel through the flexible circuit board and the pressure interface 15, and the memory chip 11 communicates data with the display device through the flexible circuit board and the connector 14. That is, the information of the display device may be processed by the memory chip 11 and then transmitted to the display panel, or the information of the display panel may be processed by the memory chip 11 and then transmitted to the display device, or the information of the display panel may be processed and then returned to the display panel. The memory chip described herein stores data to it through a preset program, and may also modify the data inside through a preset program. Optionally, the memory chip may be any one of a coded Flash memory (Flash IC), a Random Access Memory (RAM), a double data rate synchronous dynamic random access memory (DDR), or a Synchronous Dynamic Random Access Memory (SDRAM). Preferably, the memory chip is a coded Flash memory (Flash IC). The provision of the memory chip may help the display panel to enhance existing display-related functions or to implement additional new functions.
Optionally, the display device of this embodiment includes a display panel and a driving unit, and the driving unit may further include a driving chip 17. As shown in fig. 4, the driving chip 17 is located on the flexible circuit board and electrically connected to the flexible circuit board. The driving signal is transmitted from the flexible circuit board connector 14 and the flexible circuit board to the driving chip 17 by the display device for processing, and the processed driving signal is transmitted to the display panel through the voltage interface 16 to drive the display of the display panel. It should be noted that the driving chip 17 in the present application may also be located in the non-display area 101 of the display panel, or other locations that can be thought of by those skilled in the art, and the location of the driving chip is not limited in the present application.
Optionally, the display device of this embodiment includes a display panel and a driving unit, and the driving unit may further include a touch chip 18, as shown in fig. 4, the touch chip 18 is located on the flexible circuit board and electrically connected to the flexible circuit board. Touch signals in the display panel are transmitted to the touch chip 18 through the voltage interface 16 to process touch information, and the processed information is transmitted to the display device through the flexible circuit board and the flexible circuit board connector 14, so that the touch function of the display device is realized. It should be noted that the touch chip 18 in the present application may also be located in the non-display area 101 of the display panel, or other locations that can be thought of by those skilled in the art, and the location of the touch chip is not limited in the present application.
In addition, the driving chip and the touch chip can be combined into the same chip, and the driving and touch functions can be realized by using one chip.
Another aspect of the embodiments of the present application provides a method for manufacturing a driving unit, which is used to manufacture the driving unit described in any of the above embodiments, and the method for manufacturing a driving unit of the present embodiment includes:
providing a burning device with a burning probe;
contacting the burning probe with the burning contact;
performing a burning program, and withdrawing the burning probe after the burning program is completed;
cutting along the cutting line.
Fig. 5A is a process diagram of a method for manufacturing a driving unit according to an embodiment of the present application. FIG. 5B is a schematic diagram of a process for manufacturing the driving unit in the embodiment of FIG. 5A. The following describes a method for manufacturing the driving unit of this embodiment with reference to fig. 5A and 5B. It should be noted that fig. 5A shows only one of the manufacturing methods of the driving unit of the present application, and the manufacturing method of the driving unit of the present application is not limited thereto.
S10: : the burning probe is aligned and contacted with the burning contact through an alignment device; preferably, referring to fig. 5A, the alignment device aligns and contacts the burning probe with the burning contact 120 through the alignment mark 16.
S20: : performing a burning program, and withdrawing the burning probe after the burning is finished; the information is burned into the memory chip through the burning device so as to realize a new display function or improve the processing capability of the existing function and realize a better display effect.
S30: : cutting along a cutting line, and removing the burning contact; the cutting device can be used for cutting by mechanical force or laser. Optionally, the cutting device uses the alignment mark 16 to perform alignment cutting on the cutting edge and the cutting line of the cutting device.
According to the application, the burning contact 120 is arranged outside the cutting line 13, the burning contact 120 is cut after burning is finished, so that a competitor cannot read data while the function of the memory chip 11 is realized, and the information safety is protected.
Fig. 6 shows a schematic view of a display device of the present application. A display device as disclosed in the present application is shown in fig. 6. The display device of the present application includes the aforementioned driving unit. Further, the display device includes a display area and a non-display area. Wherein the driving unit of the present application is located in the non-display area. Therefore, the existing functions of the display panel can be enhanced or the display and other additional functions can be completed without influencing the display effect of the display panel. It will be appreciated by those skilled in the art that the display device may comprise some other known structure in addition to the flexible circuit board as described above.
The display device comprises a driving unit, a storage chip is arranged in the driving unit, so that the existing function of a display panel can be enhanced or other additional functions can be realized; the cutting line is arranged, and the burning contact is cut off from the cutting line after burning is finished, so that the process cost caused by attaching an insulating tape on the burning contact can be prevented from being increased, and the risk of data leakage caused by exposure of the burning contact can be avoided.
The display device of the present application may be any device including the driving unit as described above, including but not limited to a cellular phone 1000, a tablet computer, a display of a computer, a display applied to a smart wearable device, a display applied to a vehicle such as an automobile, and the like as shown in fig. 6. As long as the display device includes the structure of the driving unit included in the display device disclosed in the present application, it is considered to fall within the scope of protection of the present application.
It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (6)
1. A display device is characterized by comprising a display panel and a driving unit;
the driving unit includes:
a flexible circuit board;
the memory chip is positioned on the flexible circuit board and is electrically connected with the flexible circuit board; the memory chip is only used for storing data; storing data into the memory chip through a preset program, and/or modifying the data in the memory chip through the preset program;
the burning contact is positioned on the flexible circuit board and is electrically connected with the storage chip;
the burning lead is positioned on the flexible circuit board and is connected with the storage chip and the burning contact;
the cutting line is positioned between the memory chip and the burning contact; the cutting line divides the flexible circuit board into a cutting area and a reserved area; the burning contact, part of the burning lead and part of the flexible circuit board are positioned in the cutting area; cutting off the cutting area along the cutting line after completing burning;
wherein the cutting area is triangular in shape; the cutting area is positioned at the included angle of two adjacent edges of the flexible circuit board;
the driving chip is positioned on the flexible circuit board and is electrically connected with the flexible circuit board; the driving chip is used for processing the data stored in the storage chip and driving the display panel.
2. The display device according to claim 1, wherein the cutting region has a first area S1, and the retention region has a second area S2, S1<0.1 × S2.
3. The display device according to claim 1, wherein:
the memory chip is any one of a coding flash memory, a random access memory, a double-rate synchronous dynamic random access memory or a synchronous dynamic random access memory.
4. The display device according to claim 1, wherein:
the driving unit further comprises a touch chip, wherein the touch chip is located on the flexible circuit board, is electrically connected with the flexible circuit board and is used for the touch function of the display panel.
5. A method of manufacturing a driving unit for use in a display device according to any one of claims 1 to 4, comprising:
providing a burning device with a burning probe;
contacting the burning probe with the burning contact;
performing a burning program, and withdrawing the burning probe after the burning program is completed;
cutting along the cutting line.
6. The manufacturing method of a drive unit according to claim 5, characterized in that:
arranging an alignment mark on the flexible circuit board; the burning process also comprises an alignment process of the burning probe and the burning contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243194.3A CN106815048B (en) | 2016-12-29 | 2016-12-29 | Manufacturing method of driving unit and display device comprising driving unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611243194.3A CN106815048B (en) | 2016-12-29 | 2016-12-29 | Manufacturing method of driving unit and display device comprising driving unit |
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| Publication Number | Publication Date |
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| CN106815048A CN106815048A (en) | 2017-06-09 |
| CN106815048B true CN106815048B (en) | 2020-10-23 |
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| CN201611243194.3A Active CN106815048B (en) | 2016-12-29 | 2016-12-29 | Manufacturing method of driving unit and display device comprising driving unit |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109493745B (en) * | 2018-11-28 | 2020-06-16 | 武汉华星光电技术有限公司 | Display device and manufacturing method thereof |
| CN114582276A (en) * | 2022-04-08 | 2022-06-03 | 武汉天马微电子有限公司 | Demura burning device, method, equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003272337A (en) * | 2002-03-18 | 2003-09-26 | Asahi Glass Co Ltd | Method for manufacturing spacer ring made of glass for magnetic disk and spacer ring |
| CN103049540A (en) * | 2012-12-26 | 2013-04-17 | 深圳瑞高信息技术有限公司 | Method and device for burning large files |
| CN203490437U (en) * | 2013-09-30 | 2014-03-19 | 成都天马微电子有限公司 | Flexible printed circuit board and OTP recording device |
| CN105448337B (en) * | 2014-08-06 | 2019-06-04 | 扬智科技股份有限公司 | Data recording system and data burning method |
| CN105824675A (en) * | 2016-03-24 | 2016-08-03 | 深圳市科美集成电路有限公司 | Circuit board burning tool, system and method |
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Effective date of registration: 20211029 Address after: No.8, liufangyuan Henglu, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: WUHAN TIANMA MICROELECTRONICS Co.,Ltd. Patentee after: Wuhan Tianma Microelectronics Co.,Ltd. Shanghai Branch Patentee after: Tianma Micro-Electronics Co.,Ltd. Address before: Room 509, building 1, No. 6111, Longdong Avenue, Pudong New Area, Shanghai, 200120 Patentee before: SHANGHAI TIANMA AM-OLED Co.,Ltd. Patentee before: Tianma Micro-Electronics Co.,Ltd. |
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