CN105700210B - LCD display panel and its manufacturing method - Google Patents
LCD display panel and its manufacturing method Download PDFInfo
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- CN105700210B CN105700210B CN201610289189.XA CN201610289189A CN105700210B CN 105700210 B CN105700210 B CN 105700210B CN 201610289189 A CN201610289189 A CN 201610289189A CN 105700210 B CN105700210 B CN 105700210B
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- display panel
- lcd display
- chip
- burning
- data information
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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
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
-
- 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
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention discloses a kind of LCD display panel and its manufacturing methods, which comprises SMT piece S1, is carried out on LCD display panel；S2, screen test is carried out to LCD display panel, by data information burning into chip during screen test；S3, ATE electric performance test is carried out to LCD display panel.The present invention by carrying out the burning of chip in the screen test stage, complete after the piece step to realize the dual reduction of time and cost, it can be achieved that confirm the improvement of situation after the improvement and burning of burning technology, and reduce burning instrument and jig by burning step.
Description
Technical field
The present invention relates to technical field of liquid crystal display, more particularly to a kind of LCD display panel and preparation method thereof.
Background technique
Join shown in Fig. 1, now the production method basic procedure of LCD display panel is as follows in the art, is controlled first using burning
Have and burning is carried out to the internal NVM (nonvolatile memory) of chip (such as PWM IC and P-Gamma IC), by chip interior institute
Required voltage and setting data recording enter chip interior, then carry out SMT piece, ATE electric performance test and point screen
Test.
It needs to be P-Gamma IC and PWM IC using burning instrument and jig before SMT piece in the prior art
Burning twice can bring manually and waste of time, lead to increased costs, and can not also check whether in time after burning
Burning OK, while being also required to manage the version of multiple burning datas.
Therefore, in view of the above technical problems, it is necessary to which a kind of LCD display panel and preparation method thereof is provided.
Summary of the invention
In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a kind of LCD display panel and its manufacturing methods.
To achieve the goals above, technical solution provided in an embodiment of the present invention is as follows:
A kind of manufacturing method of LCD display panel, which comprises
S1, SMT piece is carried out on LCD display panel；
S2, screen test is carried out to LCD display panel, by data information burning into chip during screen test；
S3, ATE electric performance test is carried out to LCD display panel.
As a further improvement of the present invention, the step S2 specifically:
LCD display panel is powered on；
Chip establishes constant voltage, provides power supply support；
Sequence controller reads several data informations, and by the data information burning into corresponding chip；
After the completion of burning, sequence controller controls chip operation, carries out the screen test of LCD display panel.
As a further improvement of the present invention, the data information memory in the step S2 is in flash memory, sequence controller
Data information is read from flash memory.
As a further improvement of the present invention, the chip includes for the first chip of pulse width modulation and for ash
The second chip of correction is spent, the data information includes pulse width modulation data information and gray correction data information.
As a further improvement of the present invention, the step S2 further include:
Sequence controller closes metal-oxide-semiconductor, reads pulse width modulation data information and gray correction data information, and by arteries and veins
It rushes width modulated data information and gray correction data information and distinguishes burning into the first chip and the second chip；
After the completion of burning, sequence controller opens metal-oxide-semiconductor, controls the first chip operation by metal-oxide-semiconductor, carries out LCD and shows
The screen test of panel.
Correspondingly, a kind of LCD display panel, the LCD display panel include LCD display, electrically connect with LCD display
The XB plate connect and the CB plate being electrically connected with XB plate, the CB plate are electrically connected with sequence controller and several chips, the XB
The flash memory for storing burning/recording chip data information is electrically connected on plate.
As a further improvement of the present invention, the LCD display is electrically connected with XB plate by several flip chip.
As a further improvement of the present invention, the flash memory is electrically connected by flexible flat cable and CB plate.
As a further improvement of the present invention, the chip includes for the first chip of pulse width modulation and for ash
Spend the second chip of correction.
As a further improvement of the present invention, it is electrically connected with metal-oxide-semiconductor on the sequence controller, sequence controller passes through
Metal-oxide-semiconductor controls the first chip operation, carries out the screen test of LCD display panel.
The present invention is completed after piece step by the burning in screen test stage progress chip, burning step, can
Realize the improvement for confirming situation after the improvement and burning of burning technology, and reduce burning instrument and jig, realize the time with
The dual reduction of cost；LCD display panel has the advantages of simple structure and easy realization, and need to only increase flash memory on XB plate.
Detailed description of the invention
Fig. 1 is the flow diagram of LCD display panel manufacturing method in the prior art.
Fig. 2 is the flow diagram of LCD display panel manufacturing method in a preferred embodiment of the invention.
Fig. 3 is the idiographic flow schematic diagram of screen test in a preferred embodiment of the invention.
Fig. 4 is the control principle circuit diagram of sequence controller (TCON) in a preferred embodiment of the invention.
Fig. 5 is the structural schematic diagram of LCD display panel in a preferred embodiment of the invention.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to protection of the present invention
Range.
Join shown in Fig. 2, in a preferred embodiment of the invention, the manufacturing method of LCD display panel includes following step
It is rapid:
S1, SMT piece is carried out on LCD display panel；
S2, screen test is carried out to LCD display panel, by data information burning into chip during screen test；
S3, ATE electric performance test is carried out to LCD display panel.
Wherein, as shown in connection with fig. 3, step S2 specifically:
LCD display panel is powered on；
Chip establishes constant voltage, provides power supply support；
Sequence controller (TCON) reads several data informations, and by the data information burning into corresponding chip.It is preferred that
Ground, for data information memory in flash memory (Flash), sequence controller reads data information from flash memory；
After the completion of burning, sequence controller controls chip operation, carries out the screen test of LCD display panel.
Chip in present embodiment includes for the first chip (PWM IC) of pulse width modulation and for gray scale school
Positive the second chip (P-Gamma IC), data information pulse width modulation data information (PWM Code) and gray correction data
Information (P-Gamma Code).
Specifically, by taking burning PWM IC and P-Gamma IC as an example, the manufacturing method of LCD display panel in present embodiment
It is specific as follows:
The step of deleting burning PWM Code and P-gamma Code, first carries out screen test after the completion of SMT piece.
Burning is carried out to PWM IC and P-Gamma IC in the screen test stage.PWM IC used at present is come
It says, 3.3V voltage can be first established after just powering on, this voltage can power to TCON and Flash, provide electricity to read data
It supports in source；Then TCON reads the data information inside Flash, and the data information of reading includes PWM Code and P-gamma
PWM Code therein and P-gamma Code are respectively written into PWM IC and P-Gamma IC, complete burning by Code.
Further, to join shown in Fig. 4, sequence controller (TCON) is connected with metal-oxide-semiconductor, during burning, sequence controller
Metal-oxide-semiconductor is closed, reads PWM Code and P-gamma Code, and PWM Code and P-gamma Code are distinguished into burning into PWM
In IC and P-Gamma IC；After the completion of burning, sequence controller (TCON) opens metal-oxide-semiconductor, controls PWM IC work by metal-oxide-semiconductor
Make, carry out the screen test of LCD display panel, after the picture on LED display is shown correctly, terminates detection.
After the completion of screen test, continue to carry out ATE electric performance test to LCD display panel, ATE electric performance test
Method with it is identical in the prior art, no longer repeated herein.
Burning and detecting step in present embodiment are only carried out in booting moment, and the duration can be shorter, can effectively control
Time processed, and initial stage step and burning instrument and jig are reduced, and display situation can be examined according to subsequent screen to confirm
Fundamental voltage whether OK.
Join the LCD display panel 100 shown in Fig. 5, in an of the invention preferred embodiment, including LCD display 10, with
The XB plate (X Board) 20 that LCD display 10 is electrically connected and the CB plate (Control Board) being electrically connected with XB plate 20
30, CB plates 30 are electrically connected with sequence controller (TCON) and several chips (not shown), are electrically connected with and are used on XB plate 20
Store the flash memory (not shown) of burning/recording chip data information.
Preferably, the chip in present embodiment includes the first chip (PWM IC) for pulse width modulation and is used for
The second chip (P-Gamma IC) of gray correction is electrically connected with CB plate 30 respectively.Flash memory (Flash) is electrically connected at XB
On plate 20, for storing the burning datas information such as PWM Code and P-gamma Code.
Further, LCD display 10 and XB plate 20 is electrically connected by several flip chip (COF) 40 in present embodiment
It connects, flash memory is electrically connected by flexible flat cable (FFC) 50 and CB plate 30.It is electrically connected on sequence controller (TCON)
Metal-oxide-semiconductor (not shown), sequence controller are worked by metal-oxide-semiconductor control the first chip (PWM IC), carry out the point of LCD display panel
Screen test.
It needs sequence controller (TCON) carrying out Code improvement in present embodiment, read-write step is added, on XB plate
Flash memory Flash for storing burning data information is installed, with the reading for burning data information during screen test.
It should be understood that the chip in above embodiment is illustrated by taking PWM IC and P-Gamma IC as an example,
It may be other kinds of chip in other embodiments, such as Level Shifter IC, DVR are accordingly deposited in flash memory
The data information of storage is also not necessarily limited to PWM Code and P-gamma Code, or Level Shifter Code, DVR
The data information of Code etc., storage are correspondingly arranged according to the difference of chip, the structure of burning step and display panel with it is above-mentioned
Embodiment is identical, and no longer citing is described in detail herein.
The present invention passes through the burning in screen test stage progress chip, burning step it can be seen from embodiment of above
Suddenly it is completed after piece step, it can be achieved that confirming the improvement of situation after the improvement and burning of burning technology, and reduce burning
Instrument and jig are recorded, realizes the dual reduction of time and cost；LCD display panel has the advantages of simple structure and easy realization, only need to be in XB plate
Upper increase flash memory.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (4)
1. a kind of manufacturing method of LCD display panel, which is characterized in that the described method includes:
S1, SMT piece is carried out on LCD display panel；
S2, screen test is carried out to LCD display panel, by data information burning into chip during screen test；
S3, ATE electric performance test is carried out to LCD display panel；
The step S2 specifically:
LCD display panel is powered on；
Chip establishes constant voltage, provides power supply support；
Sequence controller reads several data informations, and by the data information burning into corresponding chip；
After the completion of burning, sequence controller controls chip operation, carries out the screen test of LCD display panel.
2. the manufacturing method of LCD display panel according to claim 1, which is characterized in that the data in the step S2
Information is stored in flash memory, and sequence controller reads data information from flash memory.
3. the manufacturing method of LCD display panel according to claim 1, which is characterized in that the chip includes being used for arteries and veins
The first chip of width modulated and the second chip for gray correction are rushed, the data information includes pulse width modulation data
Information and gray correction data information.
4. the manufacturing method of LCD display panel according to claim 3, which is characterized in that the step S2 further include:
Sequence controller closes metal-oxide-semiconductor, reads pulse width modulation data information and gray correction data information, and pulse is wide
It spends modulation data information and gray correction data information and distinguishes burning into the first chip and the second chip；
After the completion of burning, sequence controller opens metal-oxide-semiconductor, controls the first chip operation by metal-oxide-semiconductor, carries out LCD display panel
Screen test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610289189.XA CN105700210B (en) | 2016-04-29 | 2016-04-29 | LCD display panel and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610289189.XA CN105700210B (en) | 2016-04-29 | 2016-04-29 | LCD display panel and its manufacturing method |
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| CN105700210A CN105700210A (en) | 2016-06-22 |
| CN105700210B true CN105700210B (en) | 2019-04-05 |
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| CN201610289189.XA Active CN105700210B (en) | 2016-04-29 | 2016-04-29 | LCD display panel and its manufacturing method |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105976779B (en) * | 2016-07-01 | 2019-02-12 | 深圳市华星光电技术有限公司 | Sequence controller and its data-updating method, liquid crystal display panel |
| CN109426015B (en) * | 2017-08-31 | 2021-07-30 | 深圳市国显科技有限公司 | Liquid crystal display screen electric testing jig for automatically detecting OTP missed burning and testing method thereof |
| CN108346404B (en) * | 2018-03-05 | 2020-11-24 | 昆山龙腾光电股份有限公司 | Parameter debugging method for time schedule controller and screen driving circuit |
| CN108761868B (en) * | 2018-07-11 | 2024-01-05 | 武汉精测电子集团股份有限公司 | Automatic Gamma detection machine for display panel |
| CN109903713B (en) * | 2019-03-06 | 2020-11-24 | 深圳市华星光电技术有限公司 | Display compensation circuit and display compensation method |
| CN110673365A (en) * | 2019-08-29 | 2020-01-10 | 晟光科技股份有限公司 | Production method of industrial control LCD display panel |
| CN110910848A (en) * | 2019-11-28 | 2020-03-24 | Tcl华星光电技术有限公司 | Driving circuit and driving method of liquid crystal display |
| CN111273471A (en) * | 2020-01-03 | 2020-06-12 | Tcl华星光电技术有限公司 | Display device |
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| CN105700210A (en) | 2016-06-22 |
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