CN101334552A - Liquid crystal display flat light source device and flat light source drive method - Google Patents
Liquid crystal display flat light source device and flat light source drive method Download PDFInfo
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- CN101334552A CN101334552A CNA2007101067992A CN200710106799A CN101334552A CN 101334552 A CN101334552 A CN 101334552A CN A2007101067992 A CNA2007101067992 A CN A2007101067992A CN 200710106799 A CN200710106799 A CN 200710106799A CN 101334552 A CN101334552 A CN 101334552A
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Abstract
The invention relates to a plane light source device and a plane light source driving method, in particular to the panel light source device of a liquid crystal display and the plane light source driving method thereof. The plane light source device and the plane light source driving method of the invention are applied to the liquid crystal display; the plane light source device comprises a first substrate, a frame, a second substrate, a fluorescent layer, a plurality of pillars and an external electrode layer, etc.; wherein, a plane chamber body is formed between the first substrate and the second substrate, the plane chamber body is internally filled by mixed gases; the external electrode layer comprises at least a plurality of mutually independent electrode pairs; after a plurality of electrode pairs are respectively driven, the fluorescent layer excites the mixed gases to discharge and generate a plurality of corresponding luminous zones; the interval lines between the luminous zones and the scanning lines in the liquid crystal display are approximately parallel or vertical to each other; a plurality of luminous zones are started in a way of same time, alternation or interval, thus improving the image fuzzy phenomena of the liquid crystal display due to slow rotation of the liquid crystals.
Description
Technical field
The present invention relates to a kind of planar light source device and planar light source driving method of LCD, particularly relate to a kind of LCD of can improving because of showing overlapping planar light source device and the planar light source driving method (Plane Light DeviceFor Liquid Crystal Display And Driving Method Of The Same) that causes the LCD of image fog phenomenon of video data.
Background technology
LCD is one of mainstream technology of present display device, its cardinal principle is to utilize the liquid crystal molecule correspondence to have the characteristic of reversing when same electric field not, can make the light that passes through can be according to the windup-degree of liquid crystal molecule, produce difference and penetrate brightness, again by the three primary colors filter layer that distributes in advance, promptly can demonstrate the image data that the institute desire shows (data is data, information, below all be called data).
Because the liquid crystal molecule of LCD is can not be luminous voluntarily, provide light so must need a light supply apparatus in the LCD, just can make LCD operate demonstration smoothly, and existing known light supply apparatus generally is based on a cold cathode fluorescent lamp, because cold cathode fluorescent lamp is in order to a linear light to be provided, so need the collocation light guide plate just can achieve the goal, the linear light that cold cathode fluorescent lamp provided is to convert its linear light to planar light by light guide plate, provides LCD to use.
At present because the viewing area of LCD is increasing, so existing known another kind of plane formula light supply apparatus also is developed, its major technique is to be filled with mixed gas in the plane formula cavity, and in cavity the coating one fluorescence material, and utilize the electrode pair in the cavity that one electric field is provided, make excite mixed gas discharge after, directly provide a planar light to use to LCD, no longer need light guide plate conversion, can improve when the large scale liquid crystal display and produce the shortcoming of dark space because of the configuration cold cathode fluorescent lamp.
But, LCD is when show image, when if light supply apparatus keeps continuing luminous state always, because there is the physical characteristics that can't reverse fast according to the electric field transformation in the liquid crystal molecule in the LCD, and produce the phenomenon of image fog can cause show image the time because video data is overlapping, this problems affect display quality, the utmost point need to solve immediately.
This shows that the planar light source device of above-mentioned existing LCD and planar light source driving method obviously still have inconvenience and defective, and demand urgently further being improved in product structure, driving method and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product and method do not have appropriate structure and method to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of planar light source device and planar light source driving method of new LCD, real one of the current important research and development problem that belongs to also becomes the improved target of current industry utmost point need.
Because the defective that the planar light source device of above-mentioned existing LCD and planar light source driving method exist, the inventor enriches practical experience and professional knowledge for many years based on being engaged in this type of product design manufacturing, and cooperate scientific principle to use, actively studied innovation, in the hope of founding a kind of planar light source device and planar light source driving method of new LCD, can improve the planar light source device and the planar light source driving method of general existing LCD, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective of the planar light source device existence of existing LCD, and provide a kind of planar light source device of LCD of new structure, technical matters to be solved is it to be avoided because there is the physical characteristics that can't reverse fast according to the electric field transformation in the liquid crystal molecule in the LCD, and produce the phenomenon of image fog when causing show image because video data is overlapping, and then the image display quality of lifting LCD, be very suitable for practicality.
An also purpose of the present invention is, overcome the defective of the planar light source driving method existence of existing LCD, and provide a kind of new planar light source driving method, technical matters to be solved is it to be avoided because there is the physical characteristics that can't reverse fast according to the electric field transformation in the liquid crystal molecule in the LCD, and produce the phenomenon of image fog when causing show image because video data is overlapping, and then the image display quality of lifting LCD, thereby be suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of planar light source device that the present invention proposes, it is applied in the LCD, and it comprises: one first substrate; One fluorescence coating, its setting are positioned on this first substrate; One framework, its setting be positioned at this first substrate around; One second substrate is connected in this framework around it, makes to form a plane cavity between this first substrate and this second substrate, is filled with a mixed gas in this plane cavity; An and external electrode layer, its setting is positioned on the another side of this first substrate with respect to this plane cavity, and it comprises a plurality of separate electrode pairs at least, and these plurality of electrodes are to after being driven respectively, make this fluorescence coating excite this mixed gas discharge, produce the luminous zone of a plurality of correspondences.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid planar light source device, it more comprises a plurality of pillars, is to be provided with between this first substrate and this second substrate.
Aforesaid planar light source device, it more comprises an insulation course.Its setting is positioned at the opposite side of this external electrode layer with respect to this first substrate, and is covered in this external electrode layer, and to protect this external electrode layer, wherein this insulation course is to be insulating tape.
Aforesaid planar light source device, wherein said plane cavity are a plane cavity that is communicated with, the not mercurous metal of this mixed gas.
Aforesaid planar light source device, wherein said these plurality of electrodes to be with simultaneously, in turn or mode at interval be driven respectively.
Sweep trace in the aforesaid planar light source device, the septal line between wherein said these a plurality of luminous zones and this LCD is parallel to each other approximately or is vertical mutually.
The object of the invention to solve the technical problems also realizes by the following technical solutions.According to a kind of planar light source device that the present invention proposes, it is applied in the LCD, and it comprises: one first substrate; One fluorescence coating, its setting are positioned on this first substrate; One framework, its setting be positioned at this first substrate around; One second substrate is connected in this framework around it, makes to form a plane cavity between this first substrate and this second substrate, is filled with a mixed gas in this plane cavity; One first external electrode layer, its setting are positioned on the another side of this first substrate with respect to this plane cavity; And one second external electrode layer, its setting is positioned on the another side of this second substrate with respect to this plane cavity; Wherein, this first external electrode layer and this second external electrode layer comprise a plurality of separate electrodes respectively and form a plurality of independently electrode pairs, these plurality of electrodes make this fluorescence coating excite this mixed gas discharge to after being driven respectively, produce the luminous zone of a plurality of correspondences.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid planar light source device, it more comprises a plurality of pillars, is to be provided with between this first substrate and this second substrate.
Aforesaid planar light source device; it more comprises one first insulation course, and its setting is positioned at the opposite side of this first external electrode layer with respect to this first substrate, and is covered in this first external electrode layer; to protect this first external electrode layer, wherein this first insulation course is to be insulating tape.
Aforesaid planar light source device; it more comprises one second insulation course, and its setting is positioned at the opposite side of this second external electrode layer with respect to this second substrate, and is covered in this second external electrode layer; to protect this second external electrode layer, wherein this second insulation course is to be the printing opacity insulating tape.
Aforesaid planar light source device, wherein said plane cavity are a plane cavity that is communicated with, the not mercurous metal of this mixed gas.
Aforesaid planar light source device, wherein said these plurality of electrodes to be with simultaneously, in turn or mode at interval be driven respectively.
Sweep trace in the aforesaid planar light source device, the septal line between wherein said these a plurality of luminous zones and this LCD is parallel to each other approximately or is vertical mutually.
The object of the invention to solve the technical problems also realizes in addition by the following technical solutions.A kind of planar light source driving method according to the present invention's proposition, it is applied in the LCD in order to drive a planar light source device, wherein this planar light source device comprises a plurality of luminous zones, and this method comprises the following steps: to close all these a plurality of luminous zones when the default data input time zone of the picture of this LCD initial; These a plurality of luminous zones of sequence starting when the real screen data input time zone of this LCD initial; And close all these a plurality of luminous zones during the termination in the real screen data input time zone of this LCD.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid planar light source driving method just starts next luminous zone synchronously when wherein said each luminous zone is closed.
Aforesaid planar light source driving method, the unlatching time zone of wherein said these luminous zones, a plurality of front and back overlaps.
Aforesaid planar light source driving method, the unlatching time zone of wherein said each these a plurality of luminous zone equates.
Sweep trace in the aforesaid planar light source driving method, the septal line between wherein said these a plurality of luminous zones and this LCD is parallel to each other approximately or is vertical mutually.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, major technique of the present invention thes contents are as follows:
In order to achieve the above object, the present invention proposes a kind of planar light source device, and it is applied in the LCD, and it comprises one first substrate; One fluorescence coating, its setting are positioned on first substrate; One framework, its setting be positioned at first substrate around; One second substrate is connected in framework around it, makes to form a plane cavity between first substrate and second substrate, fills a mixed gas in the cavity of plane; A plurality of pillars are to be provided with between first substrate and second substrate; An and external electrode layer, its setting is positioned on the another side of first substrate with respect to the plane cavity, it comprises a plurality of separate electrode pairs at least, plurality of electrodes is to after being driven respectively, make fluorescence coating excite mixed gas discharge, produce the luminous zone of a plurality of correspondences, the sweep trace in the septal line between a plurality of luminous zones and the LCD is parallel to each other approximately or is vertical.
According to above-mentioned conception, this planar light source device more comprises an insulation course, and its setting is positioned on the opposite side surface of external electrode layer with respect to first substrate, and is covered in external electrode layer, and with the protection external electrode layer, insulation course can be insulating tape.
According to above-mentioned conception, this plane cavity is a plane cavity that is communicated with, the not mercurous metal of this mixed gas.
According to above-mentioned conception, this plurality of electrodes to be with simultaneously, in turn or mode at interval be driven respectively, make a plurality of luminous zones in turn or mode at interval start, when image data is not imported as yet, corresponding luminous zone is closed, can be improved LCD because of showing the overlapping phenomenon that causes image fog of video data.
In addition, in order to achieve the above object, the present invention proposes a kind of planar light source driving method in addition, can be applied in the LCD in order to drive a planar light source device, wherein planar light source device comprises a plurality of luminous zones, sweep trace in septal line between a plurality of luminous zones and the LCD is parallel to each other approximately or is vertical, and this method comprises the following steps: to close all a plurality of luminous zones when the default data input time zone of picture of LCD initial; The a plurality of luminous zones of sequence starting when the real screen data input time zone of LCD initial; And close all a plurality of luminous zones during the termination in the real screen data input time zone of LCD.
According to above-mentioned conception, when closing, each luminous zone just starts next luminous zone synchronously.
According to above-mentioned conception, the unlatching time zone of luminous zone, a plurality of front and back overlaps.
According to above-mentioned conception, the unlatching time zone of each a plurality of luminous zone equates.
By technique scheme, the planar light source device of LCD of the present invention and planar light source driving method have following advantage and beneficial effect at least:
Planar light source device of the present invention and since utilize a plurality of luminous zones with simultaneously, in turn or mode at interval start, can avoid LCD because of liquid crystal rotates the slow image fog phenomenon that caused, and then the image display quality of lifting LCD.
Planar light source driving method of the present invention and since utilize a plurality of luminous zones with simultaneously, in turn or mode at interval start, can avoid LCD because of liquid crystal rotates the slow image fog phenomenon that caused, and then the image display quality of lifting LCD.
In sum, the present invention is planar light source device and the planar light source driving method about a kind of planar light source device and planar light source driving method, particularly a kind of LCD.Planar light source device of the present invention and planar light source driving method are applied in the LCD, and its planar light source device comprises one first substrate, a framework, one second substrate, a fluorescence coating, a plurality of pillar and an external electrode layer etc.; Wherein, form a plane cavity between first substrate and second substrate, fill mixed gas in it; External electrode layer comprises a plurality of separate electrode pairs at least, plurality of electrodes is to after being driven respectively, make fluorescence coating excite mixed gas discharge, produce the luminous zone of a plurality of correspondences, sweep trace in septal line between a plurality of luminous zones and the LCD is parallel to each other approximately or is vertical, a plurality of luminous zones with simultaneously, in turn or mode at interval start, can improve LCD because of liquid crystal rotated the slow phenomenon that causes image fog.Planar light source device of the present invention, can avoid because there is the physical characteristics that can't reverse fast according to the electric field transformation in the liquid crystal molecule in the LCD, and produce the phenomenon of image fog when causing show image because video data is overlapping, and then promote the image display quality of LCD.Planar light source driving method of the present invention, can avoid because there is the physical characteristics that can't reverse fast according to the electric field transformation in the liquid crystal molecule in the LCD, and produce the phenomenon of image fog when causing show image because video data is overlapping, and then promote the image display quality of LCD.The present invention has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product structure, driving method or function, obvious improvement is arranged technically, and produced handy and practical effect, and the planar light source device of more existing LCD and planar light source driving method have the outstanding effect of enhancement, thereby being suitable for practicality more, and having the extensive value of industry, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the cut-away section structural representation of the planar light source device of first embodiment of the invention.
Fig. 2 is the synoptic diagram of the corresponding LCD in a plurality of luminous zones of the planar light source device of first embodiment of the invention.
Fig. 3 is the cut-away section structural representation of the planar light source device of second embodiment of the invention.
Fig. 4 is the driving sequential synoptic diagram of planar light source driving method of the present invention.
Fig. 5 is the driving sequential synoptic diagram of the planar light source driving method of another embodiment of the present invention.
Fig. 6 is the driving sequential synoptic diagram of the planar light source driving method of yet another embodiment of the invention.
1,3: planar light source device 10,30: the first substrates
100,100 ': luminous zone 101: the luminous zone septal line
11,31: plane cavity 12,32: the second substrates
13,33: framework 14,34: fluorescence coating
15,35: pillar 16: external electrode layer
17: insulation course 2: LCD
37: the first insulation courses of 36: the first external electrode layers
39: the second insulation courses of 38: the second external electrode layers
40: picture is preset data input time zone 41: real screen data input time zone
Time zone, 43: the second intervals, time zone, 42: the first intervals
51,52,53: time zone 54,55,56 is opened in the luminous zone: the time zone is opened in the luminous zone
57,58: time zone 55 ', 56 ' is opened in the luminous zone: the time zone is opened in the luminous zone
57 ', 58 ': the time zone is opened in the luminous zone
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, planar light source device and its embodiment of planar light source driving method, structure, driving method step, feature and the effect thereof of the LCD that foundation the present invention is proposed, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can clearly present in the following detailed description that cooperates with reference to graphic preferred embodiment.
Seeing also shown in Figure 1ly, is the cut-away section structural representation of the planar light source device of first embodiment of the invention.The planar light source device 1 of first embodiment of the invention, it comprises:
One first substrate 10, the preferably is a glass substrate;
One fluorescence coating 14 is provided with the top that is positioned at first substrate 10, is to form with the powder coated of fluorescence material;
One framework 13, be provided be positioned at first substrate 10 around;
One second substrate 12, be connected in framework 13 around it, make and form a plane cavity 11 between first substrate 10 and second substrate 12, framework 13 is in order to support first substrate 10 and second substrate 12, plane cavity 11 is a plane cavity that is communicated with, be filled with a mixed gas in it, the preferably is the mixed gas of mercurous metal not;
A plurality of pillars 15 are provided with between first substrate 10 and second substrate 12, in order to the space of supporting first substrate 10 and second substrate 12 and keeping plane cavity 11;
One external electrode layer 16, setting is positioned on first surface of substrate 10 with respect to the another side of plane cavity 11; And
One insulation course 17, its setting are positioned on the opposite side of external electrode layer 16 with respect to first substrate 10, and are covered in external electrode layer 16, in order to protection external electrode layer 16, and the preferably, this insulation course 17 is to be an insulating tape.
Wherein, this external electrode layer 16 comprises a plurality of separate electrode pair (not shown) at least, plurality of electrodes is to after being driven respectively, because plurality of electrodes is to being the outside that setting is positioned at plane cavity 11, driving energy need transmit by a dielectric energy barrier (for example first substrate made from glass material 10), make plurality of electrodes to corresponding respectively fluorescence coating 14 excite mixed gas and discharge, produce the luminous zone 100 of a plurality of correspondences, 100 ' etc., outwards luminous towards second substrate 12, please shown in Figure 2 in conjunction with consulting, it is the synoptic diagram of the corresponding LCD in a plurality of luminous zones of the planar light source device of first embodiment of the invention, a plurality of luminous zones 100, septal line 101 between 100 ' and the sweep trace 20 in the LCD 2 are parallel to each other approximately, make integral planar light supply apparatus 1 be divided into a plurality of luminous zones that are parallel to each other 100,100 '.
With present embodiment, this planar light source device 1 is to be divided into 4 luminous zones, but luminous zone quantity can be decided according to the size of the LCD 2 that reality cooperated, the distribution that plurality of electrodes is right can be decided according to the design requirement of luminous zone with configuration, so the present invention should be as limit, sometimes for the configuration of the sweep trace that cooperates some LCD, can also be designed so that the sweep trace 20 vertical (not shown) approximately mutually in septal line 101 and the LCD 2 between a plurality of luminous zone 100,100 '.
According to above-mentioned structure, this plurality of electrodes is right, be with simultaneously, in turn or mode at interval be driven respectively, make a plurality of luminous zone 100,100 ' also with simultaneously, in turn or mode at interval be activated respectively, if the time of the document signal input that the startup of a plurality of luminous zones and time of closing can fluid,matching crystal displays 2, then when the document signal of LCD 2 causes image overlap, pairing luminous zone is closed, produced fuzzy phenomenon in the time of promptly can avoiding its image to show.Therefore, the quantity of the disclosed a plurality of luminous zones of this case, but the data transmission quantity of fluid,matching crystal display 2 and data transmission time and decide, 4 luminous zones described in the foregoing description only are in order to illustrate, the present invention is not as limit.
Seeing also shown in Figure 3ly, is the cut-away section structural representation of the planar light source device of second embodiment of the invention.The planar light source device 3 of present embodiment comprises one first substrate 30, a fluorescence coating 34, a framework 33, one second substrate 32 and a plurality of pillar 35 etc. equally, and its basic structure is identical with previous embodiment; Wherein: form a plane cavity 31 between this first substrate 30 and second substrate 32, this plane cavity 31 is a plane cavity that is communicated with, and is filled with a mixed gas in it; Different is, present embodiment planar light source device 3, and it comprises:
One first external electrode layer 36, setting is positioned on first substrate 30 another outer surface with respect to plane cavity 31;
One second external electrode layer 38, setting is positioned on second substrate 32 another outer surface with respect to plane cavity 31;
One first insulation course 37, setting is positioned at the opposite side of first external electrode layer 36 with respect to first substrate 30, and is covered in first external electrode layer 36, to protect first external electrode layer 36; And
One second insulation course 39; setting is positioned at the opposite side of second external electrode layer 38 with respect to second substrate 32; and be covered in second external electrode layer 38; to protect second external electrode layer 38; the preferably; this first insulation course 37 and second insulation course 39 are to be respectively an insulating tape, and wherein, this second insulation course 39 is to be a printing opacity insulating tape.
Wherein, this first external electrode layer 36 and second external electrode layer 38, comprise a plurality of separate electrode (not shown) respectively and form a plurality of independently electrode pair (not shown), this plurality of electrodes is to after being driven respectively, because plurality of electrodes is to all being the outside that setting is positioned at plane cavity 11, driving energy still need be by a dielectric energy barrier (for example first substrate made from glass material 30 and second substrate 32 etc.) transmission, make plurality of electrodes to corresponding respectively fluorescence coating 34 excite mixed gas and discharge, the same luminous zone 100 that produces a plurality of correspondences, 100 ' etc., outwards luminous towards second substrate 12, please shown in Figure 2 in conjunction with consulting again, a plurality of luminous zones 100, septal line 101 between 100 ' and the sweep trace 20 in the LCD 2 are parallel to each other approximately, make integral planar light supply apparatus 1 be divided into a plurality of luminous zones that are parallel to each other 100,100 '.With present embodiment, planar light source device 1 is divided into 4 luminous zones, but the quantity of luminous zone can be decided according to the size of the LCD 2 that reality cooperated, the distribution that plurality of electrodes is right can be decided according to the design requirement of luminous zone with configuration, so the present invention is not as limit, sometimes for the configuration of the sweep trace that cooperates some LCD, can also be designed so that the sweep trace 20 vertical (not shown) approximately mutually in septal line 101 and the LCD 2 between a plurality of luminous zone 100,100 '.
The present invention also discloses a kind of planar light source driving method in addition, can be luminous and offer LCD and use in order to drive planar light source device, wherein this planar light source device comprises a plurality of luminous zones that are parallel to each other and distribute, sweep trace in septal line between a plurality of luminous zones and the LCD is parallel to each other approximately or is vertical, and wherein this method comprises the steps:
At first, seeing also shown in Figure 4ly, is the driving sequential synoptic diagram of planar light source driving method of the present invention.When the default data input time zone 40 of the picture of LCD initial, close all a plurality of luminous zones, promptly be activated without any the luminous zone in this time zone, first interval 42, wherein, this picture is preset data input time zone 40, it is agreement specification for the data input of general LCD, for example under the frequency of 120 hertz (Hz), the default data input time zone 40 of picture is preset as 8.3 milliseconds (ms), and first time zone 42, interval (i.e. the time interval that is activated without any the luminous zone) for example is 0.052 millisecond (ms), because real image data is not transfused to as yet in the time zone 42, first interval, so the time zone is activated without any the luminous zone, so can reduce the phenomenon that wrong image shows.
Then, the a plurality of luminous zones of sequence starting when the real screen data input time zone 41 of LCD initial, wherein, real screen data input time zone 41 is time intervals of the actual input of LCD image data, basically, the start time point in this real screen data input time zone 41 is slow compared to the start time point in the default data input time zone 40 of picture, can guarantee that the lump-sum image data is unlikely to the incomplete state of formation data because of importing too early, and cause image data to show wrong phenomenon.
In addition, with present embodiment, this planar light source device comprises 4 luminous zones that are parallel to each other and distribute, it is the then a plurality of luminous zones of startup, a ground that time zone 51,52,53,54 is opened in a plurality of luminous zones of described sequence starting, that is to say, when closing, each luminous zone just starts next luminous zone synchronously, for example the real screen data input time zone 41 of LCD is 7.92 milliseconds (ms), and the unlatching time zone of each a plurality of luminous zone equates, is respectively 1.98 milliseconds (ms).
Another embodiment sees also shown in Figure 5, is the driving sequential synoptic diagram of the planar light source driving method of another embodiment of the present invention.This planar light source device in the present embodiment, also comprise 4 luminous zones that are parallel to each other and distribute, it is to overlap that 55,56,57,58 in time zone is opened in a plurality of luminous zones, that is to say, just close earlier started next luminous zone before a luminous zone is closed after, the foregoing description is to cooperate the state of importing image data and luminous zone quantity and decide.And
At last, close all a plurality of luminous zones during the termination in the real screen data input time zone 41 of LCD, be to be activated without any the luminous zone in this time zone, second interval 43, for example second time zone 43, interval (i.e. the time interval that is activated without any the luminous zone) can be 0.052 millisecond (ms), this time zone 43, second interval can make the demonstration electric capacity in the LCD discharge stored current, therefore the time zone does not have any luminous zone and is activated, so can reduce the phenomenon of wrong image demonstration.
Another embodiment of the present invention sees also shown in Figure 6, is the driving sequential synoptic diagram of the planar light source driving method of yet another embodiment of the invention.According to design requirement, luminous zone among the figure is opened time zone 55 ', 56 ', 57 ', 58 ' and can also be designed to (open and close simultaneously) synchronously with real screen data input time zone 41, that is plurality of electrodes is to being to drive simultaneously, through practical design and test, can also reach identical effect.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (18)
1, a kind of planar light source device, it is applied in the LCD, it is characterized in that it comprises:
One first substrate;
One fluorescence coating, its setting are positioned on this first substrate;
One framework, its setting be positioned at this first substrate around;
One second substrate is connected in this framework around it, makes to form a plane cavity between this first substrate and this second substrate, is filled with a mixed gas in this plane cavity; And
One external electrode layer, its setting is positioned on the another side of this first substrate with respect to this plane cavity, and it comprises a plurality of separate electrode pairs at least, and these plurality of electrodes are to after being driven respectively, make this fluorescence coating excite this mixed gas discharge, produce the luminous zone of a plurality of correspondences.
2, planar light source device according to claim 1 is characterized in that it more comprises a plurality of pillars, is to be provided with between this first substrate and this second substrate.
3, planar light source device according to claim 1; it is characterized in that it more comprises an insulation course, its setting is positioned at the opposite side of this external electrode layer with respect to this first substrate, and is covered in this external electrode layer; to protect this external electrode layer, wherein this insulation course is to be insulating tape.
4, planar light source device according to claim 1; It is characterized in that wherein said plane cavity is a plane cavity that is communicated with, the not mercurous metal of this mixed gas.
5, planar light source device according to claim 1, it is characterized in that wherein said these plurality of electrodes to be with simultaneously, in turn or mode at interval be driven respectively.
6, planar light source device according to claim 1 is characterized in that sweep trace in septal line and this LCD between wherein said these a plurality of luminous zones is parallel to each other approximately or vertical mutually.
7, a kind of planar light source device, it is applied in the LCD, it is characterized in that it comprises:
One first substrate;
One fluorescence coating, its setting are positioned on this first substrate;
One framework, its setting be positioned at this first substrate around;
One second substrate is connected in this framework around it, makes to form a plane cavity between this first substrate and this second substrate, is filled with a mixed gas in this plane cavity;
One first external electrode layer, its setting are positioned on the another side of this first substrate with respect to this plane cavity; And
One second external electrode layer, its setting are positioned on the another side of this second substrate with respect to this plane cavity;
Wherein, this first external electrode layer and this second external electrode layer comprise a plurality of separate electrodes respectively and form a plurality of independently electrode pairs, these plurality of electrodes make this fluorescence coating excite this mixed gas discharge to after being driven respectively, produce the luminous zone of a plurality of correspondences.
8, planar light source device according to claim 7 is characterized in that it more comprises a plurality of pillars, is to be provided with between this first substrate and this second substrate.
9, planar light source device according to claim 7; it is characterized in that it more comprises one first insulation course; its setting is positioned at the opposite side of this first external electrode layer with respect to this first substrate; and be covered in this first external electrode layer; to protect this first external electrode layer, wherein this first insulation course is to be insulating tape.
10, planar light source device according to claim 7; it is characterized in that it more comprises one second insulation course; its setting is positioned at the opposite side of this second external electrode layer with respect to this second substrate; and be covered in this second external electrode layer; to protect this second external electrode layer, wherein this second insulation course is to be the printing opacity insulating tape.
11, planar light source device according to claim 7 is characterized in that wherein said plane cavity is a plane cavity that is communicated with, the not mercurous metal of this mixed gas.
12, planar light source device according to claim 7, it is characterized in that wherein said these plurality of electrodes to be with simultaneously, in turn or mode at interval be driven respectively.
13, planar light source device according to claim 7 is characterized in that sweep trace in septal line and this LCD between wherein said these a plurality of luminous zones is parallel to each other approximately or vertical mutually.
14, a kind of planar light source driving method, it is applied in the LCD in order to drive a planar light source device, and wherein this planar light source device comprises a plurality of luminous zones, it is characterized in that this method comprises the following steps:
When the default data input time zone of the picture of this LCD initial, close all these a plurality of luminous zones;
These a plurality of luminous zones of sequence starting when the real screen data input time zone of this LCD initial; And
Close all these a plurality of luminous zones during the termination in the real screen data input time zone of this LCD.
15, planar light source driving method according to claim 14 is characterized in that just starting synchronously when wherein said each luminous zone is closed next luminous zone.
16, planar light source driving method according to claim 14 is characterized in that the unlatching time zone of wherein said these luminous zones, a plurality of front and back overlaps.
17, planar light source driving method according to claim 14 is characterized in that the unlatching time zone of wherein said each these a plurality of luminous zone equates.
18, planar light source driving method according to claim 14 is characterized in that sweep trace in septal line and this LCD between wherein said these a plurality of luminous zones is parallel to each other approximately or vertical mutually.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007101067992A CN101334552A (en) | 2007-06-29 | 2007-06-29 | Liquid crystal display flat light source device and flat light source drive method |
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| CNA2007101067992A CN101334552A (en) | 2007-06-29 | 2007-06-29 | Liquid crystal display flat light source device and flat light source drive method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102474936A (en) * | 2009-08-19 | 2012-05-23 | 琳得科株式会社 | Light emitting sheet and manufacturing method thereof |
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2007
- 2007-06-29 CN CNA2007101067992A patent/CN101334552A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102474936A (en) * | 2009-08-19 | 2012-05-23 | 琳得科株式会社 | Light emitting sheet and manufacturing method thereof |
| US8860304B2 (en) | 2009-08-19 | 2014-10-14 | Lintec Corporation | Light emitting sheet and manufacturing method thereof |
| CN102474936B (en) * | 2009-08-19 | 2015-08-19 | 琳得科株式会社 | Light tiles and preparation method thereof |
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