CN202677011U - System for testing transmittance of liquid crystal display (LCD) panel - Google Patents
System for testing transmittance of liquid crystal display (LCD) panel Download PDFInfo
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- CN202677011U CN202677011U CN 201220083953 CN201220083953U CN202677011U CN 202677011 U CN202677011 U CN 202677011U CN 201220083953 CN201220083953 CN 201220083953 CN 201220083953 U CN201220083953 U CN 201220083953U CN 202677011 U CN202677011 U CN 202677011U
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- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 238000002834 transmittance Methods 0.000 title abstract description 6
- 239000004973 liquid crystal related substance Substances 0.000 title abstract 2
- 238000012545 processing Methods 0.000 claims abstract description 18
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000012827 research and development Methods 0.000 abstract description 3
- 238000012795 verification Methods 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 230000003321 amplification Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012812 general test Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a system for testing transmittance of a liquid crystal display (LCD) panel. The system for testing the transmittance of the LCD panel comprises a digital signal generating system, a signal processing system, a power supply, a display device, an LCD panel driving circuit and a backlight driving circuit. The backlight driving circuit is used to drive the digital signal generating system to generate light signals, the signal processing system is used to convert the light signals and then process and output the light signals to the display device, the display device is used to respond to the signals generated by the digital signal generating system for testing, the power supply is used to supply drive voltage to the whole system for testing the transmittance of the LCD panel, the digital signal generating system comprises a light-emitting diode (LED) and a light filter, and the signal processing system comprises a photoelectric diode, an amplifier, a digital-to-analog converter and a data processing device. According to the technical scheme, the system for testing the transmittance of the LCD panel is low in cost and convenient to use and maintain, and can meet the testing requirements of verification of research and development and the testing requirements of a manufacturing production line.
Description
Technical field
The utility model is specifically related to a kind of test macro of LCD panel transmitance.
Background technology
At present, the method of testing of LCD panel has two kinds: a kind of method is to detect by the pick-up unit with detecting head, utilization is with the pick-up unit of a plurality of detecting heads, be coupled to the LCD panel by detecting head, do not meet preassigned and be when detecting head detects feedback signal from the LCD panel, and then by optical system for example electron microscope distinguish; Another kind is to analyze by the Image Coding that gathers.Yet these two kinds of method designs are complicated, and equipment exists expensive, and maintaining is complicated, is unfavorable for simultaneously the shortcomings such as workshop streamline use.And some is used as the eyeglass LCD of active 3D eyes tests have more than is needed so high response speed and precision, so adopt this kind equipment to research and develop checking, particularly the production test meeting causes the serious waste of resource.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of test macro of LCD panel is provided, and in to less demanding electronic components of measuring accuracy such as 3D glasses, that avoids existing in the conventional art is expensive, the defective that production cost is higher; Simultaneously, provide a kind of method of testing of this LCD panel, can satisfy research and development checking and production test demand, and with low cost, use, easy to maintenance.
For solving the problems of the technologies described above, technical scheme provided by the utility model is: a kind of LCD panel transmission measurement system comprises the digital signal generation systems, signal processing system, power supply, display device, LCD panel drive circuit and backlight drive circuit; Described backlight drive circuit drives signal generating system and produces light signal, described signal processing system inputs to display device to light signal conversion, processing, described display device responds the test signal that described digital signal generation systems produces, and described power supply provides driving voltage for whole test macro; Described signal generating system comprises light emitting diode, optical filter; Described signal processing system comprises the photodiode for the conversion of light-electricity, and amplifier, digital to analog converter and data processor that described electric signal is processed.
Further design is that the light emitting diode of the disclosed LCD panel of the utility model transmission measurement system is driven luminous by LED driving circuit.
Further design is that the light-emitting diode backlight drive circuit in the disclosed LCD panel of the utility model transmission measurement system is by data processor controlled.
Further design is that the LCD panel drive circuit is by data processor controlled in the disclosed LCD panel of the utility model transmission measurement system.
Owing to adopted above-mentioned technical solutions of the utility model, the test macro of LCD panel can satisfy powerful, can satisfy research and development checking and production test demand, and with low cost, use, easy to maintenance.
Description of drawings
It is the circuit diagram of LCD panel transmission measurement of the present utility model system shown in the accompanying drawing 1;
It is the circuit diagram of LCD panel transmission measurement of the present utility model system shown in the accompanying drawing 2;
It is the process flow diagram of LCD panel transmission measurement method signal generating system part of the present utility model shown in the accompanying drawing 3;
It is the process flow diagram of LCD panel transmission measurement method signal processing system part of the present utility model shown in the accompanying drawing 4;
Wherein, light emitting diode is 110, and optical filter is 109, photodiode is 101, and amplifier is 102, and digital to analog converter is 103, data processor is 104, display device is 105, and LED driving circuit is that 107, LCD panel drive circuit is 106, power supply is 111, the LCD panel is 108, signal generating system 201, signal processing system 301.
Embodiment
Below described most preferred embodiment only be that the utility model is set forth the utility model embodiment, but be not limited to disclosed any implementation form.
1 with shown in the diagram 2 as shown, and a kind of transmittance test macro of LCD panel comprises signal generating system 201, power supply 111, signal processing system 301, display device 105 and LCD panel drive circuit 106 and LED driving circuit 107; Described driving circuit drives signal generating system and produces light signal, described signal processing system inputs to display device 105 to light signal conversion, processing, the test signal that the described digital signal generation systems of described display device 105 responses produces, described power supply 111 provides driving voltage for whole test macro; Wherein said signal generating system comprises light emitting diode 110, optical filter 109; Shown in Fig. 1,2,4, described signal processing system 301 comprises the photodiode 101 for the conversion of light-electricity, and amplifier 102, digital to analog converter 103 and data processor 104 that described electric signal is processed.The parallel rays that is sent by signal generation system projects on the photodiode 101 through LCD, by photodiode 101 light signal is transformed into electric signal, 102 amplifications of electric signal process amplifier are delivered to digital to analog converter 103 and are converted digital signal to, and 104 pairs of digital signals of data processor are processed.The utility model adopts the high-speed silicon PIN photodiode to carry out light signal collection, amplifies through broadband operational amplifier, by high-speed ADC signal is converted into digital quantity, finally calculates transmitance, contrast and response time in MCU.The power supply of whole system is provided by power supply 111.The test macro of the LCD panel transmitance that the utility model provides is a kind of general test macro, and it is low to have a testing cost, the testing efficiency high.
The testing scheme of LCD panel transmitance among the utility model embodiment, preferred technical scheme is: as shown in Figures 1 to 3, test is sent by light emitting diode 110 with light, and mating plate 109 is with point-source light ray furnishing directional light after filtration.In the test process, light emitting diode 110 is driven luminous by LED driving circuit 107, and LCD panel 108 is by the 106 driving work of LCD panel drive circuit.LED driving circuit 107 is by data processor 104 controls.As shown in Figures 1 to 4, the parallel rays that is sent by signal generation system projects on the photodiode 101 through LCD, by photodiode 101 light signal is transformed into electric signal, 102 amplifications of electric signal process amplifier are delivered to digital to analog converter 103 and are converted digital signal to, 104 pairs of digital signals of data processor are processed, calculate the parameters such as transmitance, contrast and response time, show by display device 105.LED driving circuit and LCD panel drive circuit are by data processor 104 controls.
Most preferred embodiment described above only is that the utility model is set forth and illustrated; but be not limited to disclosed any concrete form; possible when carrying out many modifications and variations, and all modifications and variations all should belong to the scope of the utility model claims protection.
Claims (5)
1. the test macro of a LCD panel transmitance comprises the digital signal generation systems, signal processing system, power supply, display device, LCD panel drive circuit and backlight drive circuit; Described backlight drive circuit drives signal generating system and produces light signal, described signal processing system inputs to display device to light signal conversion, processing, described display device responds the test signal that described digital signal generation systems produces, and described power supply provides driving voltage for whole test macro; It is characterized in that: described signal generating system comprises light emitting diode, optical filter; Described signal processing system comprises the photodiode for the conversion of light-electricity, and amplifier, digital to analog converter and data processor that described electric signal is processed.
2. the test macro of LCD panel transmitance according to claim 1, it is characterized in that: described test macro is provided with light emitting diode and provides used light for test macro.
3. the test macro of LCD panel transmitance according to claim 2, it is characterized in that: described light emitting diode is driven luminous by LED driving circuit.
4. the test macro of LCD panel transmitance according to claim 3, it is characterized in that: described backlight drive circuit is by data processor controlled.
5. the test macro of LCD panel transmitance according to claim 1, it is characterized in that: described LCD panel drive circuit is by data processor controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220083953 CN202677011U (en) | 2012-03-08 | 2012-03-08 | System for testing transmittance of liquid crystal display (LCD) panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220083953 CN202677011U (en) | 2012-03-08 | 2012-03-08 | System for testing transmittance of liquid crystal display (LCD) panel |
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| Publication Number | Publication Date |
|---|---|
| CN202677011U true CN202677011U (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220083953 Expired - Lifetime CN202677011U (en) | 2012-03-08 | 2012-03-08 | System for testing transmittance of liquid crystal display (LCD) panel |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540521A (en) * | 2012-03-08 | 2012-07-04 | 歌尔声学股份有限公司 | System and method for testing transmittance of liquid crystal display (LCD) panel |
| CN102645764A (en) * | 2012-04-20 | 2012-08-22 | 歌尔声学股份有限公司 | Liquid crystal display (LCD) transmissivity testing method and device |
-
2012
- 2012-03-08 CN CN 201220083953 patent/CN202677011U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540521A (en) * | 2012-03-08 | 2012-07-04 | 歌尔声学股份有限公司 | System and method for testing transmittance of liquid crystal display (LCD) panel |
| CN102645764A (en) * | 2012-04-20 | 2012-08-22 | 歌尔声学股份有限公司 | Liquid crystal display (LCD) transmissivity testing method and device |
| CN102645764B (en) * | 2012-04-20 | 2015-03-25 | 歌尔声学股份有限公司 | Liquid crystal display (LCD) transmissivity testing method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |