CN114783334A - Method for recycling burnt display driving chip - Google Patents
Method for recycling burnt display driving chip Download PDFInfo
- Publication number
- CN114783334A CN114783334A CN202210020197.XA CN202210020197A CN114783334A CN 114783334 A CN114783334 A CN 114783334A CN 202210020197 A CN202210020197 A CN 202210020197A CN 114783334 A CN114783334 A CN 114783334A
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- chip
- display
- fpga chip
- port
- mipi
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000004064 recycling Methods 0.000 title claims abstract description 9
- 239000011521 glass Substances 0.000 claims abstract description 21
- 239000000523 sample Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
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Classifications
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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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
- G09G5/39—Control of the bit-mapped memory
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a method for recycling a burnt display driving chip, which is characterized in that an FPGA chip is added through an MIPI control pin of a driving circuit, an IO port of the FPGA chip is connected with pins of MIPI control command ports (D0P, D0N) of the display driving chip, and after a display screen is powered on, all register setting parameters of currently matched display glass are sent through the IO port of the FPGA chip, so that the register configuration of the burnt display driving chip before covering is realized. The invention uses the flexibility of the FPGA chip to insert the new configuration code instruction to be sent in the mobile phone MIPI instruction interval, can be completely compatible with different configuration settings, and does not need to modify the software and hardware of the mobile phone mainboard.
Description
Technical Field
The invention relates to the technical field of display driving chips, in particular to a method for recycling a burnt display driving chip.
Background
The existing display driving chip full-burning register can only burn once, the display glass models matched with the display screen of the same display driving chip are different, the burning setting codes are different and cannot be mutually compatible, and the following conditions can occur:
1. after a new screen is replaced, the display driving chip of the detached damaged mobile phone screen can be normally used, but all registers of the burnt chip can only be matched with the display glass models which are the same as those of the damaged screen. Several suppliers exist on a mobile phone screen of one type, manual classification confirmation is needed, so that classification errors are easy, the display driving chips selected and classified can only be used by matching with the same display glass type as that before disassembly, and if the display glass manufacturer stops production, the disassembled burnt display driving chips cannot be recycled;
2. and (5) carrying out production error burning. The display driving chips of all the registers which are burned cannot be changed in the burning process, cannot be used and can only be discarded.
Disclosure of Invention
In order to solve the problems, the invention improves the recycling rate of the display driving chip, saves social production resources and cost, and provides a method for recycling the burnt display driving chip, so that the display driving chip which is burnt with all registers can be matched with display glass of other manufacturers or other models at will.
The invention adopts the following technical scheme:
a method for recycling a burnt display driving chip comprises a hardware design and a software design, wherein the hardware design comprises the following steps:
a1, adding an FPGA chip to the MIPI control pin of the drive circuit,
a2, connecting the IO port of the FPGA chip with the MIPI control command port (D0P, D0N) pin of the display driving chip,
a3, sending all register setting parameters of the display glass matched currently through an IO port of the FPGA chip after the display screen is powered on;
the software design comprises the following steps:
b1, setting an FPGA chip: setting a pin definition, and MIPI command parameters to be sent,
b2, mounting the IO port of the FPGA chip on the MIPI control command port (D0P, D0N) of the display driving chip,
and B3, downloading a code of the configuration combination of the display chip and the display glass to the display driver chip when the display screen is powered on and reset every time, so as to realize the covering of the previously burnt register configuration of the display driver chip, and inserting new configuration codes between mobile phone MIPI instructions 11-29.
As a preferred technical scheme of the invention, the FPGA chip is a GW1NZ series FPGA chip.
As a preferred technical scheme of the invention, the walking of the MIPI control foot is designed to be equal in length and equal in distance.
As a preferred technical solution of the present invention, the IO port sending mode of the FPGA chip in the step a3 is a mode of sending a low-speed command by using an MIPI soft core of the FPGA chip.
The invention has the beneficial effects that:
according to the invention, the burnt display driving chip is replaced by the display glass of different manufacturers through hardware design and software design, so that the burnt display chip can be repeatedly used after being detached from a product only with a damaged display screen, the flexibility of the FPGA chip is utilized, a new configuration code instruction needing to be sent is inserted into the MIPI instruction gap of the mobile phone, different configuration settings can be completely compatible, and the hardware and the software of a main board of the mobile phone are not required to be changed.
Drawings
FIG. 1 shows control values for NT35596 (show chip) + BS052FHE-N30 (show glass) versus NT35596 (show chip) + H546DAN09.1 (show glass) for display glass parameters.
FIG. 2 is a pin definition illustration of an FPGA chip.
Fig. 3 is a schematic diagram of a register configuration of a display driver chip burned before the FPGA chip is implemented to cover the display driver chip.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings.
A method for recycling a burnt display driving chip comprises a hardware design and a software design, wherein the hardware design comprises the following steps:
a1, adding an FPGA chip to the MIPI control pin of the driving circuit,
a2, connecting the IO port of the FPGA chip with the MIPI control command port (D0P, D0N) pin of the display driving chip,
a3, sending all register setting parameters of the display glass matched currently through an IO port of the FPGA chip after the display screen is powered on;
the software design comprises the following steps:
b1, setting an FPGA chip: setting a pin definition, and MIPI command parameters to be sent,
b2, mounting the IO port of the FPGA chip on the MIPI control command port (D0P, D0N) of the display driving chip,
and B3, downloading a code of the display chip + display glass configuration combination to the display driver chip when the display screen is powered on and reset every time, so as to realize covering the previously burnt register configuration of the display driver chip, and inserting new configuration codes between mobile phone MIPI instructions 11-29.
Further, the FPGA chip is a GW1NZ series FPGA chip.
Furthermore, the walking of the MIPI control foot is designed to be equal in length and equal in distance, so that interference between signals is reduced.
Further, the IO port of the FPGA chip in the step a3 is sent in a low-speed command mode through the MIPI soft core of the FPGA chip.
The following embodiments are implemented by using a damaged display screen NT35596 (display chip) + BS052FHE-N30 (display glass) of all burning registers to disassemble the display chip NT35596 (display chip) to H546DAN09.1 (display glass) for reuse:
then, in step B1, the MIPI command parameters to be sent, which are set by the FPGA chip, are as follows:
IO_LOC "HS_CLK_RX_P" K14,K15；
IO_PORT "HS_CLK_RX_P" PULL_MODE＝UP；
IO_LOC "HS_DATA3_RX_P" H14,H16；
IO_PORT "HS_DATA3_RX_P" PULL_MODE＝UP；
IO_LOC "HS_DATA2_RX_P" G15,G14；
IO_PORT "HS_DATA2_RX_P" PULL_MODE＝UP；
IO_LOC "HS_DATA1_RX_P" J16,J14；
IO_PORT "HS_DATA1_RX_P" PULL_MODE＝UP；
IO_LOC "HS_DATA0_RX_P" J15,K16；
IO_PORT "HS_DATA0_RX_P" PULL_MODE＝UP；
IO_LOC "HS_CLK_TX_P" L2,M1；
IO_PORT "HS_CLK_TX_P" PULL_MODE＝NONE DRIVE＝8；
IO_LOC "HS_DATA3_TX_P" T3,R4；
IO_PORT "HS_DATA3_TX_P" PULL_MODE＝NONE DRIVE＝8；
IO_LOC "HS_DATA2_TX_P" T2,R3；
IO_PORT "HS_DATA2_TX_P" PULL_MODE＝NONE DRIVE＝8；
IO_LOC "HS_DATA1_TX_P" R1,P2；
IO_PORT "HS_DATA1_TX_P" PULL_MODE＝NONE DRIVE＝8；
IO_LOC "HS_DATA0_TX_P" M3,N1；
IO_PORT "HS_DATA0_TX_P" PULL_MODE＝NONE DRIVE＝8；
IO_LOC "ready" R11；
IO_PORT "ready" IO_TYPE＝LVCMOS25 PULL_MODE＝UP DRIVE＝8；
IO_LOC "probe[1]" R6；
IO_PORT "probe[1]" IO_TYPE＝LVCMOS25 PULL_MODE＝UP DRIVE＝8；
IO_LOC "probe[0]" T5；
IO_PORT "probe[0]" IO_TYPE＝LVCMOS25 PULL_MODE＝UP DRIVE＝8；
IO_LOC "hactive_flag" T6；
IO_PORT "hactive_flag" IO_TYPE＝LVCMOS25 PULL_MODE＝UP DRIVE＝8；
IO_LOC "clkx2x4" A9；
IO_PORT "clkx2x4" IO_TYPE＝LVCMOS25 PULL_MODE＝UP；
IO_LOC "rstn" B3；
IO_PORT "rstn" IO_TYPE＝LVCMOS12 PULL_MODE＝UP；
as shown in FIG. 1, the control values of the display glass parameters for NT35596 (display chip) + BS052FHE-N30 (display glass) and NT35596 (display chip) + H546DAN09.1 (display glass) are shown.
As shown in fig. 2, a description is defined for the pins of the FPGA chip.
As shown in fig. 3, a schematic diagram of a register configuration of a display driver chip burned before being overlaid is implemented for an FPGA chip.
Finally, it should be noted that: these embodiments are merely illustrative of the present invention and do not limit the scope of the present invention. In addition, other variations and modifications will be apparent to persons skilled in the art based on the foregoing description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications are intended to be within the scope of the present invention.
Claims (4)
1. A method for recycling a burnt display driving chip is characterized in that: the method comprises a hardware design and a software design, wherein the hardware design comprises the following steps:
a1, adding an FPGA chip to the MIPI control pin of the drive circuit,
a2, connecting the IO port of the FPGA chip with the MIPI control command port (D0P, D0N) pin of the display driving chip,
a3, sending all register setting parameters of the display glass matched currently through an IO port of an FPGA chip after a display screen is powered on;
the software design comprises the following steps:
b1, setting an FPGA chip: setting a pin definition, and MIPI command parameters to be sent,
b2, mounting the IO port of the FPGA chip on the MIPI control command port (D0P, D0N) of the display driving chip,
and B3, downloading a code of the configuration combination of the display chip and the display glass to the display driver chip when the display screen is powered on and reset every time, so as to realize the covering of the previously burnt register configuration of the display driver chip, and inserting new configuration codes between mobile phone MIPI instructions 11-29.
2. The method of claim 1, wherein the method comprises: the FPGA chip is a GW1NZ series FPGA chip.
3. The method of claim 1, wherein the method comprises: the walking of MIPI control foot is the isometric design of isometric.
4. The method of claim 1, wherein the method comprises: and in the step A3, the IO port sending mode of the FPGA chip is a low-speed command mode sent by using the MIPI soft core of the FPGA chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210020197.XA CN114783334A (en) | 2022-01-10 | 2022-01-10 | Method for recycling burnt display driving chip |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210020197.XA CN114783334A (en) | 2022-01-10 | 2022-01-10 | Method for recycling burnt display driving chip |
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| CN114783334A true CN114783334A (en) | 2022-07-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117251220A (en) * | 2023-11-01 | 2023-12-19 | 深圳市维立科技有限公司 | Display initialization control method and related device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217667A (en) * | 2014-09-05 | 2014-12-17 | 武汉精测电子技术股份有限公司 | Test method and test system for implementing COMMAND-mode MIPI (mobile industry processor interface) modules |
| CN204288758U (en) * | 2014-12-17 | 2015-04-22 | 武汉精测电子技术股份有限公司 | Based on the MIPI liquid crystal module Vcom calibration apparatus of FPGA |
| CN106227686A (en) * | 2016-07-21 | 2016-12-14 | 广东高云半导体科技股份有限公司 | A kind of MIPI interface signal level shifting circuit based on domestic FPGA and application thereof |
| CN108933841A (en) * | 2017-05-27 | 2018-12-04 | 嘉兴鹏武电子科技有限公司 | A kind of control method and device of radio-frequency front-end equipment |
| CN109147701A (en) * | 2018-09-21 | 2019-01-04 | 京东方科技集团股份有限公司 | Display control structure, display control method, display base plate and display device |
| CN111221489A (en) * | 2019-12-31 | 2020-06-02 | 福州瑞芯微电子股份有限公司 | Method, device, equipment and medium compatible with various models of display screens |
-
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- 2022-01-10 CN CN202210020197.XA patent/CN114783334A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217667A (en) * | 2014-09-05 | 2014-12-17 | 武汉精测电子技术股份有限公司 | Test method and test system for implementing COMMAND-mode MIPI (mobile industry processor interface) modules |
| CN204288758U (en) * | 2014-12-17 | 2015-04-22 | 武汉精测电子技术股份有限公司 | Based on the MIPI liquid crystal module Vcom calibration apparatus of FPGA |
| CN106227686A (en) * | 2016-07-21 | 2016-12-14 | 广东高云半导体科技股份有限公司 | A kind of MIPI interface signal level shifting circuit based on domestic FPGA and application thereof |
| CN108933841A (en) * | 2017-05-27 | 2018-12-04 | 嘉兴鹏武电子科技有限公司 | A kind of control method and device of radio-frequency front-end equipment |
| CN109147701A (en) * | 2018-09-21 | 2019-01-04 | 京东方科技集团股份有限公司 | Display control structure, display control method, display base plate and display device |
| CN111221489A (en) * | 2019-12-31 | 2020-06-02 | 福州瑞芯微电子股份有限公司 | Method, device, equipment and medium compatible with various models of display screens |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117251220A (en) * | 2023-11-01 | 2023-12-19 | 深圳市维立科技有限公司 | Display initialization control method and related device |
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