CN102853905B - A kind of light intensity test device - Google Patents
A kind of light intensity test device Download PDFInfo
- Publication number
- CN102853905B CN102853905B CN201210376009.3A CN201210376009A CN102853905B CN 102853905 B CN102853905 B CN 102853905B CN 201210376009 A CN201210376009 A CN 201210376009A CN 102853905 B CN102853905 B CN 102853905B
- Authority
- CN
- China
- Prior art keywords
- light
- test device
- light intensity
- intensity test
- liquid crystal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Liquid Crystal (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The invention discloses a kind of light intensity test device, in order to solve the problem cannot carrying out light intensity test to equipment under test existed in prior art, the embodiment of the present invention provides a kind of light intensity test device, light intensity test device comprises light source and light intensity test device, wherein the light of light source transmitting is through the first light path, through the second light path after equipment under test reflection, the light receiving surface of light intensity test device to be positioned at outside the first light path and to be positioned on the second light path, owing to adopting the mode of reflection to test by light source and light intensity test device, thus realize light intensity test.
Description
Technical field
The present invention relates to liquid panel technique, particularly relate to a kind of light intensity test device.
Background technology
Along with the development of Thin Film Transistor (TFT) liquid crystal display (TFT-LCD) technology and the progress of industrial technology, liquid crystal display device production cost reduce, manufacturing process day by day perfect, become the mainstream technology in current display field.LCD is the product that in all displays, power consumption is lower, particularly reflection-type TFT-LCD, owing to eliminating backlight, and its power dissipation ratio transmission-type TFT-LCD the is low order of magnitude.
Tradition transmission type lcd device is when light intensity test, by back side illuminaton, the method of front test carries out light intensity test, and reflective film field effect transistor liquid crystal display or do not have other equipment under test of backlight, light intensity test cannot be carried out according to above-mentioned method owing to there is no backlight.
Existing in prior art as can be seen here cannot to the problem not having the equipment under test of backlight to carry out light intensity test.
Summary of the invention
The object of this invention is to provide a kind of light intensity test device, what exist in solution prior art cannot to the problem not having the equipment under test of backlight to carry out light intensity test.
The invention provides a kind of light intensity test device, light intensity test device comprises light source and light intensity test device, wherein the light of light source transmitting is through the first light path, through the second light path after equipment under test reflection, the light receiving surface of light intensity test device is positioned at outside the first light path, and can receive the light in the second light path.
Preferably, described equipment under test is reflective liquid crystal panel.
Preferably, also comprise light reflecting board, wherein light source launch light through light reflecting board reflection after, directive reflective liquid crystal panel, then through reflective liquid crystal panel reflection after through the second light path.
Preferably, the light that light source is launched is after light reflecting board reflection, and vertical sand shooting is to reflective liquid crystal panel.
Preferably, the light of light source transmitting is parallel with reflective liquid crystal panel.
Preferably, described light reflecting board is provided with light passing hole, the light through described second light path is received by the light receiving surface of light intensity test device by described smooth passing hole.
Preferably, described smooth passing hole is arranged on the central area of described light reflecting board.
Preferably, the profile of described smooth passing hole is circular or polygon or ellipse.
Preferably, the reflecting surface of described light reflecting board is provided with reflecting prism.
Preferably, described reflecting prism is multiple, is arranged at the surrounding of described smooth passing hole respectively.
Preferably, light intensity test device comprises wheelwork further, and wheelwork is used in the plane at reflective liquid crystal panel place, rotates and mobile described reflective liquid crystal panel.Because light intensity test device described in the embodiment of the present invention adopts the mode of reflection to test by light source and light intensity test device, the light that light source is launched is through the first light path, inject light intensity tester through the second light path after reflecting through there is no the equipment under test of backlight, thus realize the light intensity test to equipment under test.
Accompanying drawing explanation
Figure 1 shows that reflective liquid crystal panel testing apparatus sectional view provided by the invention;
Figure 2 shows that the reflective liquid crystal panel testing apparatus sectional view of band reflecting plate provided by the invention;
Figure 3 shows that reflective liquid crystal panel testing apparatus reflecting plate vertical view provided by the invention;
Figure 4 shows that the reflective liquid crystal panel testing apparatus reflecting plate vertical view of band wheelwork provided by the invention.
Embodiment
The invention provides a kind of light intensity test device, in order to solve exist in prior art cannot to the problem not having the equipment under test of backlight to carry out light intensity test.
For the ease of the understanding of those skilled in the art, below in conjunction with the specific embodiments and the drawings of reflective liquid crystal panel, the present invention will be described.
Shown in Figure 1, this figure is testing apparatus sectional view provided by the invention.
The embodiment of the present invention is described using reflective liquid crystal panel as equipment under test, and certain equipment under test also can be that other needs to carry out the equipment of light intensity test, is not described in detail in this.
Light intensity test device described in the embodiment of the present invention specifically can comprise: light source 11 and light intensity test device 12.
Wherein the light of light source 11 transmitting is through the first light path, and through the second light path after reflective liquid crystal panel 13 reflects, the light receiving surface of light intensity test device 12 is positioned at outside the first light path, and is positioned on the second light path.
Light intensity test can be carried out to reflective liquid crystal panel 13 through the mode of reflection like this by light source 11 and light intensity test device 12.
Reflective liquid crystal panel can comprise semi-transparent semi-reflecting liquid crystal panel and total reflection liquid crystal panel.
Because light intensity test device described in the embodiment of the present invention adopts the mode of reflection to test by light source 11 and light intensity test device 12, the light that light source 11 is launched is through the first light path, after equipment under test reflection, inject light intensity tester 12 through the second light path, thus realize the light intensity test to equipment under test.
As shown in Figure 2, light intensity test device described in the embodiment of the present invention can also comprise light reflecting board 14.Wherein the light of light source 11 transmitting is after light reflecting board 14 reflects, directive reflective liquid crystal panel 13, then through the second light path after reflective liquid crystal panel reflection (diffuse reflection), injects the light receiving surface of light intensity tester 12.
For the ease of the calculating of light intensity test device 12 pairs of light intensity, need ensure test time light source 11 incident light can vertical sand shooting to reflective liquid crystal panel 13.The light that light source 11 is launched is after light reflecting board 14 reflects, and vertical sand shooting to reflective liquid crystal panel 13, then through the second light path after reflective liquid crystal panel reflection (diffuse reflection), injects the light receiving surface of light intensity tester 12.
Certainly, the light reflected through light reflecting board 14 also can with reflective liquid crystal panel 13 in other angles.
Preferred scheme is the light parallel with reflective liquid crystal panel 13 that light source 11 is launched.The structure of reflecting plate 14 as shown in Figure 3, reflected light is received for the ease of light intensity test device 12, light reflecting board 14 can offer light passing hole 141, and the light through described second light path is received by the light receiving surface of light intensity test device 12 by described smooth passing hole 141.Light passing hole 141 is arranged on the central area of light reflecting board, can certainly be arranged on other region, and region as to the left in center or center region to the right, the embodiment of the present invention does not limit this.
The profile of light passing hole 141 can be circular, and can certainly be other shape such as polygon, ellipse, the embodiment of the present invention limit this.
In order to guarantee more light directive reflective liquid crystal panel, the reflecting surface of light reflecting board 14 is provided with reflecting prism 142, reflecting prism 142 can be multiple.
Multiple reflecting prisms 142 can be arranged at the surrounding of light passing hole 141.
Conveniently reflective liquid crystal panel zones of different is tested, reflective liquid crystal panel 13 testing apparatus can also comprise wheelwork 15, wheelwork 15 is in the plane at reflective liquid crystal panel 13 place, rotate and mobile reflective liquid crystal panel 13, so just conveniently can carry out light intensity test to reflective liquid crystal panel.
First launch directional light (with the parallel plane light in reflective liquid crystal panel 13 place) from light source 11, and be irradiated to light reflecting board 14.Reflecting prism 142 on light reflecting board 14 is irradiated to dispersed for directional light in reflective liquid crystal panel 13 again.Next, the light diffuse reflection be irradiated on it is gone out by reflective liquid crystal panel 13, and is received by the light intensity test device 12 being located thereon end through the second light path by the light passing hole 141 on light reflecting board 14.
Light intensity test device 12 calculates test result according to the power of the light intensity received.
Conveniently test, light intensity test device of the present invention can further include wheelwork 15, wheelwork 15 can be arranged on one end of reflective liquid crystal panel (or equipment under test), for in the plane at reflective liquid crystal panel place, rotate and mobile described reflective liquid crystal panel.
Reflective liquid crystal panel in the present embodiment can be the panel of semi-transparent semi-reflective, and the panel of semi-transparent semi-reflective both can realize display by backlight, also the external world can be reflected back again through the light of substrate.
The experiment condition of light intensity test device described in the present embodiment of the present invention is specifically as follows darkroom test.
When light is only sent by the backlight of semi-transparent semi-reflective liquid crystal panel, the light source 11 of the light intensity test device namely described in the embodiment of the present invention can be in not opening, the light that the light that light intensity test device now receives sends for backlight.According to the light intensity received, we can measure the brightness of only opening liquid crystal panel in backlight situation.
When the light source 11 of the light intensity test device described in the embodiment of the present invention is opened, when the backlight of liquid crystal panel is closed, the light that the light source 11 of the light intensity test device described in the embodiment of the present invention sends can reflex on the liquid crystal panel of semi-transparent semi-reflective through light reflecting board 14, again through reflecting thus being received by light intensity test device 12, and then test out the intensity of reflected light.The light intensity that the backlight of the light intensity received and liquid crystal panel sends can contrast by the light intensity test device described in the embodiment of the present invention, thus judges the reflecting effect of the panel of semi-transparent semi-reflective.
It can certainly be the light source 11 not only opened backlight but also open light intensity test device, such light is sent by the backlight of semi-transparent semi-reflective liquid crystal panel and the light source 11 of light intensity test device simultaneously, aforesaid method of testing is utilized to test, to be used for the situation of test screen overall brightness.
It is last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention but not to be limited, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to technical scheme of the present invention or equivalent replacement, and these are revised or be equal to the spirit and scope that replacement also can not make amended technical scheme disengaging technical solution of the present invention.
Claims (7)
1. a light intensity test device, it is characterized in that, light intensity test device comprises light source and light intensity test device, wherein the parallel rays of light source transmitting is through the first light path, through the second light path after equipment under test reflection, the light receiving surface of light intensity test device is positioned at outside the first light path, and can receive the light in the second light path;
Described light intensity test device also comprises light reflecting board, wherein light source launch parallel rays through light reflecting board reflection after, directive equipment under test, then through equipment under test reflection after through the second light path; Described light reflecting board is provided with light passing hole, the light through described second light path is received by the light receiving surface of light intensity test device by described smooth passing hole;
Light intensity test device comprises wheelwork further, and wheelwork is used in the plane at reflective liquid crystal panel place, rotates and mobile described reflective liquid crystal panel;
The reflecting surface of described light reflecting board is provided with reflecting prism, light source is launched directional light and is irradiated to light reflecting board, reflecting prism on light reflecting board is irradiated in reflective liquid crystal panel by dispersed for directional light again, the light diffuse reflection be irradiated on it is gone out by reflective liquid crystal panel, and is received by the light intensity test device being located thereon end through the second light path by the light passing hole on light reflecting board.
2. light intensity test device according to claim 1, is characterized in that, described equipment under test is reflective liquid crystal panel.
3. light intensity test device according to claim 1, is characterized in that, the light that light source is launched is after light reflecting board reflection, and vertical sand shooting is to reflective liquid crystal panel.
4. light intensity test device according to claim 3, is characterized in that, the light that light source is launched is parallel with reflective liquid crystal panel.
5. light intensity test device according to claim 1, is characterized in that, described smooth passing hole is arranged on the central area of described light reflecting board.
6. light intensity test device according to claim 1, is characterized in that, the profile of described smooth passing hole is circular or polygon or ellipse.
7. light intensity test device according to claim 1, is characterized in that, described reflecting prism is multiple, is arranged at the surrounding of described smooth passing hole respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210376009.3A CN102853905B (en) | 2012-09-29 | 2012-09-29 | A kind of light intensity test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210376009.3A CN102853905B (en) | 2012-09-29 | 2012-09-29 | A kind of light intensity test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102853905A CN102853905A (en) | 2013-01-02 |
| CN102853905B true CN102853905B (en) | 2015-11-25 |
Family
ID=47400694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210376009.3A Active CN102853905B (en) | 2012-09-29 | 2012-09-29 | A kind of light intensity test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102853905B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181744A (en) * | 2018-02-05 | 2018-06-19 | 北京灵犀微光科技有限公司 | The test device of reflective liquid-crystal display contrast |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354360A (en) * | 2000-11-22 | 2002-06-19 | 精工爱普生株式会社 | Method and apparatus for appraising liquid crystal panel |
| CN1702514A (en) * | 2002-08-27 | 2005-11-30 | Nec液晶技术株式会社 | Reflector and reflection-type LCD using the same |
| CN102422209A (en) * | 2009-05-18 | 2012-04-18 | 夏普株式会社 | Liquid crystal panel and method for inspecting liquid crystal panel |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4229805B2 (en) * | 2003-10-27 | 2009-02-25 | シャープ株式会社 | Reflective display device |
| CN101078666B (en) * | 2006-05-26 | 2010-09-01 | 鸿富锦精密工业（深圳）有限公司 | Reflective type display apparatus detection device and method |
-
2012
- 2012-09-29 CN CN201210376009.3A patent/CN102853905B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354360A (en) * | 2000-11-22 | 2002-06-19 | 精工爱普生株式会社 | Method and apparatus for appraising liquid crystal panel |
| CN1702514A (en) * | 2002-08-27 | 2005-11-30 | Nec液晶技术株式会社 | Reflector and reflection-type LCD using the same |
| CN102422209A (en) * | 2009-05-18 | 2012-04-18 | 夏普株式会社 | Liquid crystal panel and method for inspecting liquid crystal panel |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102853905A (en) | 2013-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW200624940A (en) | Composite diffuser plates and direct-lit liquid crystal displays using same | |
| TW200628899A (en) | Liquid crystal display and electronic apparatus | |
| KR20070071272A (en) | Apparatus for testing liquid crystal display device | |
| US9733513B2 (en) | Transflective liquid crystal display panel comprising a transmission axis of a first polarizer and a transmission axis of a second polarizer forming an angle of 0 to 20 degrees, manufacturing method thereof, and display device | |
| US20180031915A1 (en) | Liquid crystal display device and reflective display module of the same | |
| CN103969899B (en) | Semi-transparent semi-reflective liquid crystal display panel and liquid crystal display device | |
| WO2008100443A3 (en) | High contrast liquid crystal displays | |
| CN103969882B (en) | A kind of liquid crystal panel and display device | |
| CN105334649B (en) | The measurement method of liquid crystal efficiency in liquid crystal display panel | |
| CN103941326B (en) | The light guide structure of a kind of flat faced display and the flat faced display with this light guide structure | |
| US20160342025A1 (en) | Transflective liquid crystal display panel and a liquid crystal display device | |
| CN102853905B (en) | A kind of light intensity test device | |
| US9513506B2 (en) | Transflective liquid crystal panel, display device, array substrate, color filter substrate and fabricating method thereof | |
| US20160342024A1 (en) | A transflective liquid crystal panel and a liquid crystal panel display using the same | |
| JP2012220957A (en) | Semi-transmissive/semi-reflective array substrate and semi-transmissive/semi-reflective liquid crystal display | |
| TW200705060A (en) | Projection display, liquid crystal device and electronic equipment | |
| US9477102B2 (en) | Method of promoting brightness uniformity of liquid crystal module | |
| CN102937762A (en) | Transflective liquid crystal display device | |
| WO2019127735A1 (en) | Method and device for measuring optical parameters of polarizer | |
| KR101988617B1 (en) | Light-leakage preventing jig and visual inspection apparatus using the same | |
| CN105319788A (en) | Liquid crystal display equipment | |
| TW200613782A (en) | Diffusely reflective polarizing film, display apparatus having the same, and method of manufacturing the same | |
| CN102841459A (en) | Liquid crystal display device | |
| WO2004072713A3 (en) | A high contrast liquid crystal dispersion system cell and transmissive device | |
| CN102944956B (en) | Semitransparent and semi-reflective liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |