CN107316595A - The ageing testing method of burn-in test backlight arrangement and liquid crystal display panel - Google Patents
The ageing testing method of burn-in test backlight arrangement and liquid crystal display panel Download PDFInfo
- Publication number
- CN107316595A CN107316595A CN201710534211.7A CN201710534211A CN107316595A CN 107316595 A CN107316595 A CN 107316595A CN 201710534211 A CN201710534211 A CN 201710534211A CN 107316595 A CN107316595 A CN 107316595A
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- Prior art keywords
- backboard
- test
- burn
- liquid crystal
- crystal display
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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
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
-
- 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
Abstract
The present invention provides the ageing testing method of a kind of burn-in test backlight arrangement and liquid crystal display panel.The burn-in test backlight arrangement of the present invention, including backboard, carry cover plate, light source, heater and blowing device, wherein, the backboard collectively forms a box body with carrying cover plate, the light source, which is located in the box body, to be used to provide test brightness to liquid crystal display panel, heater and blowing device are installed on the backboard side, the heat that blowing device sends heater forms hot blast and is blown into backboard i.e. box body, and then the liquid crystal display panel carried on carrying cover plate is heated by carrying cover plate progress heat transfer, its temperature-controllable simultaneously can provide brightness, being capable of direct test form of the analog sample in high temperature furnace, for carrying out burn-in test to liquid crystal display panel, pattern generator of arranging in pairs or groups carries out burn-in test particularly for the liquid crystal display panel to non-bonding COF and PCB.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of burn-in test backlight arrangement and liquid crystal display panel
Ageing testing method.
Background technology
Liquid crystal display (Liquid Crystal Display, LCD) has thin fuselage, power saving, radiationless etc. numerous excellent
Point, is widely used, such as：LCD TV, mobile phone, personal digital assistant (PDA), digital camera, computer screen
Curtain or notebook computer screen etc., occupy an leading position in flat display field.Wherein, Thin Film Transistor-LCD
(Thin Film Transistor Liquid Crystal Display, TFT-LCD) is the main product of current flat panel display
One of kind, it mainly includes liquid crystal display panel, backlight module (backlight module, BLU) and external drive circuit；Liquid
The operation principle of LCD panel is at thin film transistor (TFT) array (Thin Film Transistor Array, TFT Array)
Liquid crystal molecule, and the application driving on two plate bases are poured between substrate and colored filter (Color Filter, CF) substrate
Voltage controls the direction of rotation of liquid crystal molecule, and the light of backlight module is reflected into generation picture.
Referring to Fig. 1, Fig. 1 drives the schematic diagram of framework for TFT-LCD in the prior art, existing TFT-LCD mainly drives
Principle is：R/G/B compressed signals, control signal and power are passed through wire rod and COF chips (chip on film core by system board
Piece) and pcb board 200 on connector 210 (connector) be connected so that liquid crystal display panel obtain needed for electricity
Source, signal, specifically, pcb board 200 pass through S-COF chips 300 (Source-Chip on Film, source electrode chip on film chip)
With the viewing area 500 of G-COF chips 400 (Gate-Chip on Film, grid chip on film chip) and display panel
(Display Area) is connected, further, is also included located at the fan-out area 600 at display panel edge in the driving framework
Scan line and data wire in (Fan Out Area), viewing area 500 are respectively connecting to S-COF cores via fan-out area 600
Piece 300 and G-COF chips 400.
The burn-in test (Aging test) of product can be carried out before usual TFT-LCD shipment, such as 50 DEG C high temperature tests, specifically
Ground, (good with COF chips and the equal bonding of pcb board (bonding) Open cell in liquid crystal display panel after assembly is completed
Liquid crystal display panel) collocation backlight module, input signal simultaneously put into high temperature furnace carry out short time test, so as to carry out product sieve
Choosing.
But current LCD factory also has more Pure cell and (there is not bonding liquid with COF chips and pcb board
LCD panel) shipment, as shown in Fig. 2 Pure cell are merely able to by being fanned out to before no laser cutting (laser cut)
Test board (test pad) 650 on region 600 be connected with outside pattern generator-shorting bar signal equipment and
Pure cell are lighted, such as need Aging to test, then need to provide news to Pure cell using shorting bar signals equipment
Number, then shorting bar signals equipment need to also need while be put into inside high temperature furnace, can just carry out aging tests, but
Shorting bar signal equipment builds are larger, are difficult to be put into high temperature furnace, and are difficult to carry out alignment function in high temperature furnace.
The content of the invention
It is old for being carried out to liquid crystal display panel it is an object of the invention to provide a kind of burn-in test backlight arrangement
Change test, temperature-controllable simultaneously can provide brightness, being capable of direct test form of the analog sample in high temperature furnace.
The present invention also aims to provide a kind of ageing testing method of liquid crystal display panel, surveyed using above-mentioned aging
Backlight arrangement on probation, without sample is placed on inside high temperature stove, it is possible to directly quickly draw testing result.
To achieve the above object, the invention provides a kind of burn-in test backlight arrangement, for LCD
Plate carries out burn-in test, including：
Backboard, the backboard include bottom plate and with the bottom plate several side plates connected vertically；
Being covered on is used for the transparent carrying cover plate for carrying liquid crystal display panel on the backboard, the backboard is covered with carrying
Plate collectively forms a box body；
The light source in the backboard is installed on, the light source, which is located in the box body, to be used to provide survey to liquid crystal display panel
Try brightness；
The heater and blowing device of the backboard side are installed on, wherein, the heater is located at backboard with blowing
Between wind apparatus, for providing heat, the heat that the blowing device sends heater forms hot blast and is blown into backboard,
And then the liquid crystal display panel carried on carrying cover plate is heated by carrying cover plate progress heat transfer.
The light source includes two LED light bars, and two LED light bar is respectively arranged on the two opposite sides plate of the backboard.
It is respectively equipped with the backboard on the inwall of two opposite sides plate to the projecting inward and symmetrical boss of backboard, it is described to hold
The edge for carrying cover plate is positioned on the boss of the two opposite sides plate and the carrying cover plate is covered on the backboard.
The light source is installed on the side plate where the boss and positioned at the lower section of the boss.
The heater and blowing device are installed on the side of side plate on the backboard, and the side plate is air stave,
The air stave is provided with multiple air vents, and hot blast is blown into backboard by the blowing device by the plurality of air vent.
The light source is installed on the side plate of the backboard, and the side plate for being provided with light source is luminous side plate, the emission side
Plate is side plates different on the backboard from the air stave.
The blowing device includes multiple electric fans being set up in parallel, and the heater is electrical heating resistance wire.
The material of the carrying cover plate is glass.
The present invention also provides a kind of ageing testing method of liquid crystal display panel, including：Aging as described above is provided to survey
Backlight arrangement, liquid crystal display panel and pattern generator to be tested on probation, the liquid crystal display panel and figure are produced
Device is attached and is positioned on the carrying cover plate of the burn-in test backlight arrangement, opens the burn-in test backlight
Source device, provides test brightness to the liquid crystal display panel and is heated.
In test process, the temperature heated to liquid crystal display panel is controlled by adjusting heater and blowing device
Degree.
Beneficial effects of the present invention：The present invention burn-in test backlight arrangement, including backboard, carrying cover plate, light source,
Heater and blowing device, wherein, the backboard collectively forms a box body with carrying cover plate, and the light source is located at the box body
Interior to be used to provide test brightness to liquid crystal display panel, heater and blowing device are installed on the backboard side, blowing dress
Put the heat formation hot blast for sending heater and be blown into backboard i.e. box body, and then heat transfer pair is carried out by carrying cover plate
The liquid crystal display panel that carries is heated on carrying cover plate, and its temperature-controllable simultaneously can provide brightness, being capable of direct analog sample
Test form in high temperature furnace, for carrying out burn-in test to liquid crystal display panel, collocation pattern generator is particularly for right
Non- bonding COF and PCB liquid crystal display panel carries out burn-in test.The ageing testing method of the liquid crystal display panel of the present invention,
Using above-mentioned burn-in test backlight arrangement, required survey directly can be heated to backlight arrangement using the burn-in test
Temperature is tried, without sample is placed on inside high temperature stove, and testing result directly can be quickly drawn.
In order to be able to be further understood that the feature and technology contents of the present invention, refer to below in connection with the detailed of the present invention
Illustrate and accompanying drawing, however accompanying drawing only provide with reference to and explanation use, not for being any limitation as to the present invention.
Brief description of the drawings
Below in conjunction with the accompanying drawings, it is described in detail by the embodiment to the present invention, technical scheme will be made
And other beneficial effects are apparent.
In accompanying drawing,
Fig. 1 is the schematic diagram that TFT-LCD drives framework；
Fig. 2 is the schematic diagram of non-bonding COF and PCB liquid crystal display panel；
Fig. 3 is the schematic top plan view of the burn-in test backlight arrangement of the present invention；
Fig. 4 is the schematic top plan view of Fig. 3 dorsulum inner light sources；
Fig. 5 is cross-sectional view of the burn-in test backlight arrangement along A-A ' hatchings in Fig. 3；
Fig. 6 is cross-sectional view of the burn-in test backlight arrangement along B-B ' hatchings in Fig. 3；
Fig. 7 is the signal for carrying out burn-in test to liquid crystal display panel with backlight arrangement by the burn-in test of the present invention
Figure.
Embodiment
Further to illustrate the technological means and its effect of the invention taken, below in conjunction with being preferable to carry out for the present invention
Example and its accompanying drawing are described in detail.
Referring to Fig. 3, a kind of burn-in test backlight arrangement, for carrying out burn-in test to liquid crystal display panel 900,
Including：
Backboard 10, the backboard 10 include bottom plate 11 and with the bottom plate 11 several side plates 12 connected vertically；
Being covered on is used for the transparent carrying cover plate 20 for carrying liquid crystal display panel 900, the backboard on the backboard 10
10 collectively form a box body with carrying cover plate 20；
The light source 30 in the backboard 10 is installed on, the light source 30 is located in the box body and is used for liquid crystal display panel
900 provide test brightness；
The heater 40 and blowing device 50 of the side of backboard 10 are installed on, wherein, the heater 40 is located at
Between backboard 10 and blowing device 50, for providing heat, the blowing device 50 forms the heat that heater 40 is sent
Hot blast is simultaneously blown into backboard 10, and then carries out heat transfer to carrying the LCD carried on cover plate 20 by carrying cover plate 20
Plate 900 is heated.
Specifically, as shown in figure 4, the light source 30 includes two LED light bars 31, two LED light bar 31 is respectively arranged in institute
State on the two opposite sides plate 12 of backboard 10, the side plate 12 for being provided with light source 30 is luminous side plate.
Specifically, as shown in Figure 5 and Figure 6, it is respectively equipped with the backboard 10 on the inwall of two opposite sides plate 12 to backboard
10 projecting inward and symmetrical boss 125, the edge of the carrying cover plate 20 is positioned on the boss 125 of the two opposite sides plate 12
And the carrying cover plate 20 is covered on the backboard 10.
Specifically, the light source 30 is installed on the side plate 12 at the place of boss 125 and under the boss 125
Side.
Specifically, as shown in figure 5, the heater 40 and blowing device 50 are installed on side plate 12 in the backboard 10
Side, the side plate 12 is air stave, and the air stave is provided with multiple air vents 128, and the blowing device 50 passes through this
Hot blast is blown into backboard 10 and is blown into box body by multiple air vents 128.
Specifically, the luminous side plate is side plates 12 different on the backboard 10 from the air stave.
Specifically, the blowing device 50 includes multiple electric fans being set up in parallel, and the heater 40 is electrical heating
Resistance wire.
Specifically, the heater 40 and the blowing device 50 can adjust, by adjusting in electrical heating resistance wire
Electric current and electric fan wind speed, the liquid crystal display panel 900 that the burn-in test can be controlled to be carried with backlight arrangement to it
The temperature of heating.
Specifically, the material of the carrying cover plate 20 is transparent Heat Conduction Material, such as glass.
Specifically, the material of the backboard 10 is heat-insulating heat-preserving material.
The burn-in test backlight arrangement of the present invention, for carrying out burn-in test to liquid crystal display panel 900, especially
Burn-in test is carried out to non-bonding COF and PCB liquid crystal display panel 900, its temperature-controllable simultaneously can provide brightness, can be direct
Test form of the analog sample in high temperature furnace, directly can quickly draw testing result.
Referring to Fig. 7, based on above-mentioned burn-in test backlight arrangement, the present invention also provides a kind of liquid crystal display panel
Ageing testing method, including：Burn-in test backlight arrangement 100 as described above, LCD to be tested are provided
Plate 900 and pattern generator 800, the liquid crystal display panel 900 are non-bonding COF and PCB Pure cell, by the liquid crystal
Display panel 900 is attached with pattern generator 800 and is positioned over the carrying lid of the burn-in test backlight arrangement 100
On plate 20, the burn-in test backlight arrangement is opened, test brightness is provided to the liquid crystal display panel 900 and is added
Heat.
Specifically, in test process, the electric current and blowing device in electrical heating resistance wire by adjusting heater 40
50 electric fan wind speed controls the temperature heated to liquid crystal display panel 900.
The ageing testing method of the liquid crystal display panel of the present invention, using above-mentioned burn-in test backlight arrangement 100,
Required test temperature directly can be heated to using the burn-in test backlight arrangement 100, without sample is placed on high temperature
Inside stove, and it directly can quickly draw testing result.
In summary, burn-in test backlight arrangement of the invention, including backboard, carrying cover plate, light source, heater
And blowing device, wherein, the backboard collectively forms a box body with carrying cover plate, the light source be located in the box body be used for
Liquid crystal display panel provides test brightness, and heater and blowing device are installed on the backboard side, and blowing device will be heated
The heat that device is sent forms hot blast and is blown into backboard i.e. box body, and then carries out heat transfer to carrying cover plate by carrying cover plate
The liquid crystal display panel of upper carrying is heated, and its temperature-controllable simultaneously can provide brightness, can directly analog sample in high temperature furnace
Interior test form, for carrying out burn-in test to liquid crystal display panel, collocation pattern generator is particularly for non-bonding COF
Burn-in test is carried out with PCB liquid crystal display panel.The ageing testing method of the liquid crystal display panel of the present invention, using above-mentioned
Burn-in test backlight arrangement, directly can be heated to required test temperature, nothing with backlight arrangement using the burn-in test
Sample need to be placed on inside high temperature stove, and directly can quickly draw testing result.
It is described above, for the person of ordinary skill of the art, can be with technique according to the invention scheme and technology
Other various corresponding changes and deformation are made in design, and all these changes and deformation should all belong to the claims in the present invention
Protection domain.
Claims (10)
1. a kind of burn-in test backlight arrangement, it is characterised in that for carrying out aging survey to liquid crystal display panel (900)
Examination, including：
Backboard (10), the backboard (10) include bottom plate (11) and with the bottom plate (11) several side plates (12) connected vertically；
Being covered on is used for the transparent carrying cover plate (20) for carrying liquid crystal display panel (900), the back of the body on the backboard (10)
Plate (10) collectively forms a box body with carrying cover plate (20)；
The light source (30) in the backboard (10) is installed on, the light source (30) is located in the box body and is used for LCD
Plate (900) provides test brightness；
The heater (40) and blowing device (50) of the backboard (10) side are installed on, wherein, the heater (40)
Between backboard (10) and blowing device (50), for providing heat, the blowing device (50) sends out heater (40)
The heat gone out forms hot blast and is blown into backboard (10), and then carries out heat transfer to carrying cover plate (20) by carrying cover plate (20)
The liquid crystal display panel (900) of upper carrying is heated.
2. burn-in test backlight arrangement as claimed in claim 1, it is characterised in that the light source (30) includes two LED
Lamp bar (31), two LED light bar (31) is respectively arranged on the two opposite sides plate (12) of the backboard (10).
3. burn-in test backlight arrangement as claimed in claim 1, it is characterised in that two opposite sides in the backboard (10)
It is respectively equipped with the inwall of plate (12) to the projecting inward and symmetrical boss (125) of backboard (10), the carrying cover plate (20)
Edge is positioned on the boss (125) of the two opposite sides plate (12) and the carrying cover plate (20) is covered on the backboard (10)
On.
4. burn-in test backlight arrangement as claimed in claim 3, it is characterised in that the light source (30) is installed on described
On side plate (12) where boss (125) and positioned at the lower section of the boss (125).
5. burn-in test backlight arrangement as claimed in claim 1, it is characterised in that the heater (40) and blowing
Device (50) is installed on the side of side plate (12) in the backboard (10), and the side plate (12) is air stave, the air stave
Multiple air vents (128) are provided with, hot blast is blown into backboard (10) by the blowing device (50) by the plurality of air vent (128)
It is interior.
6. burn-in test backlight arrangement as claimed in claim 5, it is characterised in that the light source (30) is installed on described
On the side plate (12) of backboard (10), the side plate (12) for being provided with light source (30) is luminous side plate, and the luminous side plate leads to described
Wind side plate is side plates (12) different on the backboard (10).
7. burn-in test backlight arrangement as claimed in claim 1, it is characterised in that the blowing device (50) includes many
The individual electric fan being set up in parallel, the heater (40) is electrical heating resistance wire.
8. burn-in test backlight arrangement as claimed in claim 1, it is characterised in that the material of the carrying cover plate (20)
For glass.
9. a kind of ageing testing method of liquid crystal display panel, it is characterised in that including：There is provided as any in claim 1-8
Burn-in test backlight arrangement (100), liquid crystal display panel (900) and pattern generator (800) to be tested described in,
The liquid crystal display panel (900) and pattern generator (800) are attached and the burn-in test backlight is positioned over
On the carrying cover plate (20) of device (100), the burn-in test is opened with backlight arrangement (100), to the LCD
Plate (900) provides test brightness and heated.
10. the ageing testing method of liquid crystal display panel as claimed in claim 9, it is characterised in that in test process, passes through
Heater (40) and blowing device (50) is adjusted to control the temperature for heating liquid crystal display panel (900).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710534211.7A CN107316595B (en) | 2017-07-03 | 2017-07-03 | Backlight source device for aging test and aging test method of liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710534211.7A CN107316595B (en) | 2017-07-03 | 2017-07-03 | Backlight source device for aging test and aging test method of liquid crystal display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107316595A true CN107316595A (en) | 2017-11-03 |
| CN107316595B CN107316595B (en) | 2020-09-01 |
Family
ID=60181126
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|---|---|---|---|
| CN201710534211.7A Active CN107316595B (en) | 2017-07-03 | 2017-07-03 | Backlight source device for aging test and aging test method of liquid crystal display panel |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108037398A (en) * | 2018-01-16 | 2018-05-15 | 昆山精讯电子技术有限公司 | A kind of display module ageing tester and ageing testing method |
| CN108132551A (en) * | 2018-01-30 | 2018-06-08 | 合肥研力电子科技有限公司 | A kind of lighting jig |
| CN108267873A (en) * | 2018-01-26 | 2018-07-10 | 惠州市华星光电技术有限公司 | A kind of method and system for examining GOA circuit reliabilities |
| CN110082941A (en) * | 2019-03-27 | 2019-08-02 | 长沙湘计海盾科技有限公司 | A kind of liquid crystal display light heating component and light heating means |
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| CN108267873A (en) * | 2018-01-26 | 2018-07-10 | 惠州市华星光电技术有限公司 | A kind of method and system for examining GOA circuit reliabilities |
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| CN110082941A (en) * | 2019-03-27 | 2019-08-02 | 长沙湘计海盾科技有限公司 | A kind of liquid crystal display light heating component and light heating means |
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|---|---|
| CN107316595B (en) | 2020-09-01 |
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Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee after: TCL Huaxing Photoelectric Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Patentee before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |