CN100458526C - Adjusting device for liquid crystal display - Google Patents
Adjusting device for liquid crystal display Download PDFInfo
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- CN100458526C CN100458526C CNB2006100036155A CN200610003615A CN100458526C CN 100458526 C CN100458526 C CN 100458526C CN B2006100036155 A CNB2006100036155 A CN B2006100036155A CN 200610003615 A CN200610003615 A CN 200610003615A CN 100458526 C CN100458526 C CN 100458526C
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B13/00—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material
- B32B13/04—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B13/12—Layered products comprising a a layer of water-setting substance, e.g. concrete, plaster, asbestos cement, or like builders' material comprising such water setting substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2255/00—Coating on the layer surface
- B32B2255/26—Polymeric coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/06—Embossing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- Liquid Crystal (AREA)
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The present invention provides an adjusting device for a liquid crystal display adjusting the liquid crystal display so that a flicker is minimized on the basis of a reflection light quantity detected by a photosensor so disposed that direct incidence of illumination light from a light source on a light receiving surface is prevented and reflection light from the liquid crystal display is made incident. Since the light receiving surface of the photosensor comes closer to the liquid crystal display than to the light source, direct incidence of the illumination light from the light source on the light receiving surface is prevented and the reflection light from a liquid crystal panel is made incident. The potential of a common electrode of the liquid crystal display is adjusted so that the flicker is minimized on the basis of the reflection light quantity detected by the photosensor. Thereby, direct incidence of the illumination light from the light source on the light receiving surface of the photosensor is prevented by a simple construction, change of the reflection light quantity reflected by the electrode of a pixel in a light transmission state of the liquid crystal display is detected with high sensitivity and the potential of the common electrode of the liquid crystal display can be accurately adjusted so that the flicker is minimized.
Description
Technical field
The present invention relates to a kind of flicker that pixel is configured to rectangular liquid crystal indicator and be adjusted into minimum device.
Background technology
When checking the show state of liquid crystal panel 20, under state, provide drive signal, test pattern is presented on the liquid crystal panel 20 to driving circuit with panel type luminaire 10 irradiating liquid crystal panels 20, thus overlooker's observation test image.At this moment, incide light guide plate 11, incide the light beam of the reflecting surface 15 of each slot part 14, crooked about 90 degree and incide each pixel of liquid crystal panel 20 from the light beam of fluorescent light 12.The light beam of each pixel of the state by transmitted light is in 26 reflections of downside electrode, incide light guide plate 11 by each pixel once more, by the reflecting surface 15 of incident angle less than critical angle, penetrate to foreign side from the upper surface of panel type luminaire 10, observe image by the overlooker.
Patent documentation 1:JP spy opens 2000-249998 communique (with reference to the 3rd page, Fig. 1).
In the display panels testing fixture of in patent documentation 1, putting down in writing, because operating personnel observe to the image of foreign side's output the upper surface from panel type luminaire 10 with the mode of range estimation, thereby judge whether well, so has the problem that product can produce deviation, while operating personnel's eye fatigue.In addition, because must be on the test pattern light guide plate 11 correct a plurality of grooves of formation, so the shortcoming that exists installation cost to uprise.
Summary of the invention
The present invention proposes in order to eliminate relevant shortcoming, its purpose is to provide a kind of like this device, promptly, to prevent that illumination light from light source is directly incident on sensitive surface and makes the mode that reflected light from liquid crystal indicator incides sensitive surface dispose photoelectric sensor, based on adjusting liquid crystal indicator, make flicker become minimum by the detected reflection light quantity of this photoelectric sensor.
In order to address the above problem, structural being characterised in that of the present invention is provided with: light source, its from the front surface of liquid crystal panel to liquid crystal indicator irradiating illumination light; Photoelectric sensor, it is being relative to the configuration near the position of liquid crystal panel and the front surface of above-mentioned liquid crystal panel than above-mentioned light source, thereby prevents that above-mentioned illumination light is directly incident on sensitive surface, and makes the reflected light from above-mentioned liquid crystal panel incide sensitive surface; And, make flicker become minimum device based on the current potential of the common electrode of adjusting above-mentioned liquid crystal indicator by the detected reflection light quantity of this photoelectric sensor.
Structural being characterised in that of the present invention is provided with: light source, its from the front surface of liquid crystal panel to liquid crystal indicator irradiating illumination light; Photoelectric sensor, its front surface with above-mentioned liquid crystal panel relative to and dispose, thereby make reflected light incide sensitive surface from above-mentioned liquid crystal panel; Occulter, it is configured between above-mentioned light source and the above-mentioned sensitive surface, so that be not directly incident on above-mentioned sensitive surface from the illumination light of above-mentioned light source; Make flicker become minimum device based on the current potential of the common electrode of adjusting above-mentioned liquid crystal indicator by the detected reflection light quantity of above-mentioned photoelectric sensor.
Structural being characterised in that of the present invention, above-mentioned light source be by be configured in above-mentioned photoelectric sensor around light conductor and this light conductor luminophor luminous and by the Current Control light quantity is constituted.
Structural being characterised in that of the present invention, above-mentioned light source and above-mentioned photoelectric sensor are installed on the inside top of the shell that is formed by the shading member.
In inventing as constituted above, because the sensitive surface of photoelectric sensor more approaches liquid crystal indicator than light source, thus can prevent to be directly incident on sensitive surface from the illumination light of light source, and make reflected light incide sensitive surface from liquid crystal panel.Based on the current potential of adjusting the common electrode of liquid crystal indicator by the detected reflection light quantity of this photoelectric sensor, so that flicker becomes minimum.Thus, use simple structure, the blocking illumination light is directly incident on the sensitive surface of photoelectric sensor from light source, the highly sensitive variation that detects by the reflection light quantity of the electrode reflection of the pixel of the light transmission state of liquid crystal indicator, can correctly adjust the current potential of the common electrode of liquid crystal indicator, so that flicker becomes minimum.
In inventing as constituted above, owing between the sensitive surface of light source and photoelectric sensor, dispose occulter, so can prevent to be directly incident on sensitive surface, and make reflected light incide sensitive surface from the liquid crystal panel of liquid crystal indicator from the illumination light of light source.Based on by the detected reflection light quantity of this photoelectric sensor, adjust the current potential of the common electrode of liquid crystal indicator, so that flicker becomes minimum.Thus, use simple structure, really blocking is directly incident on the illumination light of the sensitive surface of sensor from light source, the highly sensitive variation that detects by the reflection light quantity of the electrode reflection of the pixel of the light transmission state of liquid crystal indicator, the current potential of the common electrode of adjustment liquid crystal indicator that can be correct is so that flicker becomes minimum.
In inventing as constituted above, the light conductor of configuration is the luminophor of light emitting diode, LED, incandescent lamp, Halogen lamp LED etc. around photoelectric sensor, by from light quantity with wavelength Current Control etc., that do not change light source, that the light of the luminophor of the method control that light do not flash is carried out is luminous, so from the reflected light of liquid crystal panel from around incide the sensitive surface of photoelectric sensor.Thus, reflected light does not produce inequality, thus the highly sensitive variation that detects reflection light quantity, and the current potential of the common electrode of adjustment liquid crystal indicator that can be correct, so that flicker becomes minimum.
In inventing as constituted above, light source and photoelectric sensor are installed in the inside top of the shell that is formed by the shading member, covering by this shell under the state of liquid crystal panel front surface, illumination light shines the liquid crystal panel front surface, so can be under the state of blocking from the light of outside, make the sensitive surface that incides photoelectric sensor from the reflected light of liquid crystal panel, can highly sensitively detect catoptrical variation.
Description of drawings
Fig. 1 is the figure of the embodiment of expression adjusting device for liquid crystal display of the present invention.
Fig. 2 is the figure of expression liquid crystal indicator.
Fig. 3 is the sectional view of liquid crystal panel.
Fig. 4 is the figure of the X electrode of each pixel of expression.
Fig. 5 is the figure of expression processing from the signal in each stage of the output current of photoelectric sensor.
Fig. 6 is illustrated in the figure that has disposed the example of occulter between light source and the photoelectric sensor.
Fig. 7 is the figure of expression with the light source of light emitting diode and light conductor formation.
Fig. 8 is the figure of expression liquid crystal indicator with the inspection adjusting gear.
Fig. 9 is the figure of expression liquid crystal indicator with the groundwork of checking adjusting gear.
Figure 10 is the figure that is illustrated in when returning work in the work shown in Figure 9.
Figure 11 is the figure when being illustrated in the power supply that cuts off liquid crystal indicator 10 in the course of work shown in Figure 9.
Figure 12 is the figure of expression when working routine carried out edition upgrading.
Embodiment
Below, describe based on the embodiment of accompanying drawing at adjusting device for liquid crystal display of the present invention.The liquid crystal indicator of the current potential of common electrode being adjusted by this adjusting gear 10, as shown in Figure 1, 2, comprising: glass substrate 11, the liquid crystal panel 12 that is located at the central authorities of glass substrate 11, the driving IC chip 13 that is crimped on glass substrate 11 edge parts and FPC (Flexible Printed Circuit: flexible electric circuit board) 14 etc.FPC14 forms electronic circuit on transparent or translucent flexible substrate, its opaque electrode portion accompanies ACF (Anisotropic Conductive Film: the anisotropic conductive film of band etc. anisotropic conducting film), and be crimped on the transparency electrode portion of glass substrate 11.
Adjusting device for liquid crystal display 20 is provided with main part 29, and this main part 29 has: light source 21, the front surface irradiating illumination light of the liquid crystal panel 12 of the liquid crystal indicator 10 of its state before installation is backlight; Photoelectric sensor 22, its incident is from the reflected light of liquid crystal panel 12; Current potential adjustment part 23, it adjusts the current potential of the common electrode of liquid crystal indicator 10 based on by photoelectric sensor 22 detected reflection light quantities, so that flicker becomes minimum.In addition, also can be in the liquid crystal indicator 10 that state backlight has been installed, do not light backlight, but by light source 21 to liquid crystal panel 12 front surface irradiating illumination light, based on by photoelectric sensor 22 detected reflection light quantities from liquid crystal panel 12, adjust the common electrode of liquid crystal indicator 10, so that flicker becomes minimum.
Be provided with FPC25 on the clamp portion 24 of adjusting device for liquid crystal display 20, this FPC25 has the electrode that contacts and electrically connect with the electrode of the FPC14 of liquid crystal indicator 10.Liquid crystal indicator 10 is located and is loaded on the clamp portion 24 with FPC14,16 the contacted mode of electrode, FPC25 by based on stationary installation 26 and by elasticity by being pressed on the FPC14, thereby be connected with current potential adjustment part 23.Current potential adjustment part 23 electrically connects by cable 27 with clamp portion 24.
When adjusting the current potential of common electrode of liquid crystal indicator 10, in order illumination light to be shone be installed in the front surface of the liquid crystal panel 12 of the liquid crystal indicator 10 on the clamp portion 24, in inside top the shell 28 of the case shape of light source 21 and photoelectric sensor 22 has been installed, has been covered liquid crystal indicator 10 in the mode of the front surface of covering liquid crystal panel 12.Shell 28 forms with the shading member of black, so that light can not enter the inside of case shape from the outside.As light source 21, the preferred sensitivity White LED of the light of wavelength preferably that sends photoelectric sensor 22 that uses.Photoelectric sensor 22 is installed in sensitive surface the ratio light source 21 of inside top of shell 28 apart from the near position of liquid crystal panel 12, preventing being directly incident on sensitive surface from the illumination light of light source 21, and makes the reflected light from liquid crystal panel 12 incide sensitive surface.
Current potential adjustment part 23 has: signal of video signal generating unit 30, and it is presented on the liquid crystal panel 12 for the image that will be suitable for detecting flicker, produces relevant signal of video signal, and sends to the driving IC chip 13 of liquid crystal indicator 10; Signal efferent 31, it handles the detecting signal from photoelectric sensor 22, output and the big or small corresponding signal that glimmers; Instruction department 32, it sends instruction to driving IC chip 13, so that the public current potential that applies on the common electrode of liquid crystal indicator 10 changes continuously; And, potential setting portion 33, its based on instruction department 32 to the public current potential of driving IC chip 13 indication and this moment the signal from 31 outputs of signal efferent, the public current potential that flicker is become hour is located in the driving IC chip 13.During at every turn from the roll signal of mouse 53 intake rollers 54, instruction department 32 sends instruction to driving IC chip 13, so that the public current potential that applies on the common electrode of liquid crystal indicator 10 changes continuously.
Below, describe at the work of the adjusting device for liquid crystal display 20 of above-mentioned embodiment.To the liquid crystal indicator 10 that the current potential of common electrode is adjusted, be positioned and be loaded on the clamp portion 24, FPC25 is crimped on the FPC14 by stationary installation 26, makes liquid crystal indicator 10 be connected to main part 29.When pressing the left button 55 of mouse 53 for a long time, instruction department 32 is opened the power switch of liquid crystal indicator 10.Shell 28 covers liquid crystal indicator 10, with the front surface of covering liquid crystal panel 12.When clicking the left button 55 of (left click) mouse 53, instruction department 32 makes 23 work of current potential adjustment part, makes light source 21 luminous simultaneously, makes the front surface of illumination light irradiating liquid crystal panel 12.At this moment, owing to photoelectric sensor 22 is relative to the configuration with the front surface of liquid crystal panel 12 near the position of liquid crystal panel 12 than light source 21 at sensitive surface, so can prevent to be directly incident on the sensitive surface of photoelectric sensor 22 from the illumination light of light source 21.And, because under state by the front surface of shell 28 covering liquid crystal panel 12, illumination light is shone the front surface of liquid crystal panel 12, so the reflected light from liquid crystal panel 12 can incide the sensitive surface of photoelectric sensor 22 under the state of blocking from the light of outside, thereby can highly sensitively detect catoptrical variation.
Instruction department 32 sends signal of video signal to signal of video signal generating unit 30 and produces instruction, and signal of video signal generating unit 30 produces the signal of video signal of the image that is suitable for detecting flicker, sends to the driving IC chip 13 of liquid crystal indicator 10 by FPC25,14.Driving IC chip 13 corresponding signal of video signal and the X electrode 18 of liquid crystal panel 12 is connected to common electrode in turn in a frame period by in a horizontal cycle Y electrode 17 being applied control voltage successively, thereby is presented on the liquid crystal panel 12 image.At this moment, in the pixel that the X electrode 18 that is connected with common electrode and the Y electrode 17 that applied voltage intersect, become light transmission state, the illumination light that incides liquid crystal panel 12 is become bright by the reflection of the reflecting part of X electrode 18, the reflecting part that does not arrive X electrode 18 owing to illumination light in the pixel corresponding with the Y electrode 17 that does not apply voltage does not have reflection, so deepening.And, be applied to the control voltage on the Y electrode 17 owing to be alternating voltage, so when positive and negative control voltage is different, the shading value difference of every frame picture is glimmered thereby produce by the positive and negative alternate of every frame.This flicker can reduce by the public current potential adjustment to the common electrode that connects X electrode 18 successively.
At every turn from mouse 53 when the roll signal of instruction department 32 intake rollers 54, instruction department 32 is to the public potential setting terminal input signal of driving IC chip 13, the public current potential of driving IC chip 13 all can have displacement when each input signal.Because a frame period is little more a lot of than the interval from the signal of instruction department 32 input, so the size of the flicker of each the public current potential can detect each signal input the time.
Signal efferent 31 is voltage by electric current, voltage conversion circuit with the current transformation that detects corresponding with the reflection light quantity of exporting from photoelectric sensor 22 from liquid crystal panel 12.When having detected the image that has flicker with photoelectric sensor 22, the output of electric current, voltage conversion circuit shown in Fig. 5 (a), become corresponding flicker and faint variation detect voltage 35.Detect voltage 35 and remove flip-flop by exchanging regenerative loop, become the waveform voltage 36 shown in Fig. 5 (b), amplifying by amplifying circuit becomes the waveform amplification voltage 37 shown in Fig. 5 (c).Signal efferent 31 at waveform amplification voltage 37, detects the peak-peak in each frame period and the difference of minimum peak (Peak to Peak) by peak holding circuit, with this difference as with the flicker big or small corresponding signal and export.In potential setting portion 33, store the difference in each frame period successively, according to each signal that sends continuously from mouse 53, relatively be set in the difference in each frame period of each the public current potential in the driving IC chip 13, difference is set in the public potential setting portion of driving IC chip 13 for hour utility voltage.
In the above-described embodiment, for the illumination light from light source 21 is not directly incident on the sensitive surface of photoelectric sensor 22, photoelectric sensor 22 is being relative to the configuration with the front surface of liquid crystal panel 12 near the position of liquid crystal panel 12 than light source 21, but also can be as shown in Figure 6, configuration occulter 48 between the sensitive surface of light source 21 and photoelectric sensor 22.
As shown in Figure 7, also can around photoelectric sensor 22, dispose the light conductor 40 of ring-type, by from a plurality of positions of outer peripheral face, for example at two positions that diametric(al) is separated, the light that light emitting diode 41 is sent imports to light conductor 40, make light conductor 40 luminous, thereby constitute light source 21.Therefore, owing to make the light conductor 40 on every side that is configured in photoelectric sensor 22 luminous by light from light emitting diode 41, so from the reflected light of liquid crystal panel 12 from around incide the sensitive surface of photoelectric sensor 22, in reflected light, do not form inequality, the variation that can high-precision test goes out reflection light quantity.Make light conductor 40 luminous luminophors be not limited to light emitting diode 41, as LED, incandescent lamp, Halogen lamp LED etc., so long as get final product by the luminophor of Current Control light quantity.
Below, describe with inspection adjusting gear 49 at liquid crystal indicator shown in Figure 8.Use in the inspection adjusting gear 49 at liquid crystal indicator, in order to make operating personnel see that the picture inspection has or not bright spot, stain, foul etc., be provided with side by side in main part 29 and current potential adjustment part 23: picture inspection portion 50, it makes whole pixels 45 of liquid crystal panel 12 be light transmission state; Liquid crystal amperometric determination portion 51, it is used for being determined at liquid crystal panel 12 value of current flowing; RGB flexible examination portion 52, it is used to make the rgb value of the image that shows on liquid crystal panel 12 to change, operating personnel are seeing that the picture inspection has or not bright spot, stain, foul etc., in addition, the mouse 53 that is connected of instruction department 32, and instruction portion 32 and signal of video signal generation portion 30 are shared with current potential adjustment part 23.
When checking adjustment work, when pressing the left button 55 of mouse 53 for a long time, instruction department 32 opens it when the power-off of liquid crystal indicator 10, when opening it is closed.Instruction department 32, when the signal of each input left click mouse 53, the kind of the work that will carry out according to the order transmission work sign on of picture inspection portion 50, current potential adjustment part 23, liquid crystal amperometric determination portion 51, RGB flexible examination portion 52 pushes forward; When clicking (right click) right button 56, the kind of the work of sending the work sign in reverse order and carrying out is returned a step backward at every turn.Instruction department 32 is at every turn from the X-axis movable signal of the roll signal of mouse 53 intake rollers 54 or mouse 53 time, current potential adjustment part 23 makes the public current potential that applies on the common electrode of liquid crystal indicator 10 change at work, and RGB flexible examination portion 52 makes the RGB rank change at work.
To at liquid crystal indicator when checking that the program of carrying out various work in the adjusting gear 49 is carried out edition upgrading, when the roller 54 of mouse 53 rolls, select to be presented at the project on the display part that is connected with main part 10; If left click is then determined option.If right click is then cancelled determining of option.
Below, describe with the work of checking adjusting gear 49 at liquid crystal indicator.Groundwork as shown in Figure 9, liquid crystal indicator 10 is positioned and is loaded on the clamp portion 24, electrically connect with main part 29 and (step S1) is set, when pressing the left button 55 of mouse 53 for a long time, instruction department 32 is opened the power supply (step S2) of liquid crystal indicator 10.When power supply was opened, picture inspection portion 50 started working, and sent to signal of video signal generating unit 30 and checked that signal of video signal produces instruction; Signal of video signal generating unit 30 produces the inspection signal of video signal that makes whole pixels 45 become light transmission state, sends by FRC25,14 driving IC chip 13 to liquid crystal indicator 10.Operating personnel are seeing that the image inspection of liquid crystal panel 12 has or not (step S3) such as bright spot, stain, fouls.
When left click mouse 53 (step S4), instruction department 32 makes 23 work of current potential adjustment part, and the current potential of the common electrode of liquid crystal indicator 10 is adjusted as mentioned above in current potential adjustment part 23, so that flicker becomes minimum (step S5).
When left click mouse 53 (step S6), instruction department 32 makes 51 work of liquid crystal amperometric determination portion, and liquid crystal amperometric determination portion 51 measures the electric current (step S7) that flows through between Y electrode 17 and the X electrode 18.
When left click mouse 53 (step S8), instruction department 32 makes 52 work of RGB flexible examination portion.RGB flexible examination portion 52 makes whole pixels 45 become light transmission state, and rgb value is changed, and shows the image that the colourity that makes red, green, blue has changed on liquid crystal panel 12.Operating personnel are seeing that the image inspection of liquid crystal panel 12 has or not (step S9) such as bright spot, stain, fouls.When left click mouse 53 (step S10), a series of inspection adjustment finishes, and instruction department 32 is closed the power supply (step S11) of liquid crystal indicator 10.
The work identical with Fig. 9 proceeds to step S5, afterwards, carrying out return will carry out on liquid crystal panel 12 showing when the current potential of the common electrode of checking image and liquid crystal indicator 10 is adjusted, as shown in figure 10 once more, after step S5 finishes, right click mouse 53 (step S12).By the right button of right click mouse 53, the implementation of various work is returned one in proper order, and picture inspection portion 50 is task again, sends to liquid crystal indicator 10 and checks signal of video signal.Operating personnel are seeing that the image inspection of liquid crystal panel 12 has or not (step S13) such as bright spot, stain, fouls.When left click mouse 53 (step S14), instruction department 32 is adjusted the current potential (step S15) of the common electrode of liquid crystal indicator 10 once more in current potential adjustment part 23.When left click mouse 53 (step S16), thereby instruction department 32 is closed the power supply power cut-off (step S17) of liquid crystal indicator 10.
The work identical with Fig. 9 proceeds to step S7, when cutting off the power supply of liquid crystal indicator 10 in the process of amperometric determination, as shown in figure 11, presses left button 55 (step S18) for a long time in the amperometric determination of step S7.By pressing left button 55 for a long time, instruction department 32 is closed the power supply of liquid crystal indicator 10 and power cut-off (step S19).
As shown in figure 12,, the DIPSW that is located at main part 29 is set at the edition upgrading pattern, opens the power supply (step S21) of main part 10 making liquid crystal indicator when checking that program that adjusting gear 49 carries out various work is carried out edition upgrading.Because at the display part that is connected with main part 10, demonstration is the project (step S22) of the edition upgrading or the edition upgrading of parameter of firmware, so the roller 54 of roll mouse 53 comes option (step S23), and left click identify project (step S24).Because the file (step S25) of upgrading in the display part version of display when determining is so come select File (step S26) by scroll wheel 54.Left click is determined file (step S27).Thus, carry out edition upgrading (step 28).In addition, in the time of cancelling the selection of having done, right click mouse 53.
Like this, because by in the palm of one hand, operating the instruction manipulation that mouse 53 just can make liquid crystal indicator carry out various work with inspection adjusting gear 49, the location of operating key etc., operation steps etc. so forget it, just can carry out various work, can improve operating efficiency, shorten the adjustment time of checking.
Claims (6)
1. an adjusting device for liquid crystal display is characterized in that, is provided with: light source, its from the front surface of liquid crystal panel to liquid crystal indicator irradiating illumination light; Photoelectric sensor, it is being relative to the configuration near the position of above-mentioned liquid crystal panel and the front surface of above-mentioned liquid crystal panel than above-mentioned light source, thereby prevents that above-mentioned illumination light is directly incident on sensitive surface, and makes the reflected light from above-mentioned liquid crystal panel incide sensitive surface; And, make flicker become minimum device based on the current potential of the common electrode of adjusting above-mentioned liquid crystal indicator by the detected reflection light quantity of this photoelectric sensor.
2. adjusting device for liquid crystal display as claimed in claim 1 is characterized in that, above-mentioned light source be by be configured in above-mentioned photoelectric sensor around light conductor and this light conductor luminophor luminous and by the Current Control light quantity is constituted.
3. adjusting device for liquid crystal display as claimed in claim 1 or 2 is characterized in that, above-mentioned light source and above-mentioned photoelectric sensor are installed on the inside top of the shell that is formed by the shading member.
4. an adjusting device for liquid crystal display is characterized in that, is provided with: light source, its from the front surface of liquid crystal panel to liquid crystal indicator irradiating illumination light; Photoelectric sensor, its front surface with above-mentioned liquid crystal panel relative to and dispose, thereby make reflected light incide sensitive surface from above-mentioned liquid crystal panel; Occulter, it is configured between above-mentioned light source and the above-mentioned sensitive surface, so that be not directly incident on above-mentioned sensitive surface from the illumination light of above-mentioned light source; And, make flicker become minimum device based on the current potential of the common electrode of adjusting above-mentioned liquid crystal indicator by the detected reflection light quantity of above-mentioned photoelectric sensor.
5. adjusting device for liquid crystal display as claimed in claim 4 is characterized in that, above-mentioned light source be by be configured in above-mentioned photoelectric sensor around light conductor and this light conductor luminophor luminous and by the Current Control light quantity is constituted.
6. as claim 4 or 5 described adjusting device for liquid crystal display, it is characterized in that above-mentioned light source and above-mentioned photoelectric sensor are installed on the inside top of the shell that is formed by the shading member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005008963A JP2006195351A (en) | 2005-01-17 | 2005-01-17 | Adjusting device for liquid crystal display |
| JP2005008963 | 2005-01-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1808243A CN1808243A (en) | 2006-07-26 |
| CN100458526C true CN100458526C (en) | 2009-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100036155A Expired - Fee Related CN100458526C (en) | 2005-01-17 | 2006-01-09 | Adjusting device for liquid crystal display |
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| Country | Link |
|---|---|
| JP (1) | JP2006195351A (en) |
| KR (1) | KR20060083870A (en) |
| CN (1) | CN100458526C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007286234A (en) * | 2006-04-14 | 2007-11-01 | Seiko Epson Corp | Illuminating system, illuminator, and reflection-type display body |
| JP2011002745A (en) * | 2009-06-22 | 2011-01-06 | Victor Co Of Japan Ltd | Light modulation device and projection type display |
| CN107123398A (en) * | 2017-03-21 | 2017-09-01 | 青岛海信电器股份有限公司 | The VCOM voltage adjusting methods and device of LCDs |
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- 2006-01-09 CN CNB2006100036155A patent/CN100458526C/en not_active Expired - Fee Related
- 2006-01-12 KR KR1020060003475A patent/KR20060083870A/en not_active Application Discontinuation
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2000249998A (en) * | 1999-03-02 | 2000-09-14 | Matsushita Electric Ind Co Ltd | Liquid crystal display panel inspection illuminator and liquid crystal display panel inspection method |
| US6795137B1 (en) * | 1999-04-26 | 2004-09-21 | Microsoft Corporation | Methods and apparatus for implementing transmissive display devices |
| JP2002162934A (en) * | 2000-09-29 | 2002-06-07 | Eastman Kodak Co | Flat-panel display with luminance feedback |
| JP2002148618A (en) * | 2000-11-15 | 2002-05-22 | Heiwa Corp | Liquid crystal display unit adjusting device and game machine equipped with liquid crystal display unit adjusted by the liquid crystal display unit adjusting device |
| CN1398392A (en) * | 2000-11-30 | 2003-02-19 | 汤姆森许可公司 | Method and appts. for controlling common mode electrode voltage in LCOS/LCD |
| CN1462991A (en) * | 2002-05-30 | 2003-12-24 | 三星电子株式会社 | Lcd |
| US20040000628A1 (en) * | 2002-06-28 | 2004-01-01 | Kinpo Electronics, Inc | Brightness feedback display device |
| US20040200953A1 (en) * | 2003-04-09 | 2004-10-14 | Eastman Kodak Company | OLED display with integrated photosensor |
| US20040246722A1 (en) * | 2003-05-23 | 2004-12-09 | Chien-Jen Chang | Direct-type back light module with photo sensors |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1808243A (en) | 2006-07-26 |
| KR20060083870A (en) | 2006-07-21 |
| JP2006195351A (en) | 2006-07-27 |
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