CN101425264B - Brightness evening display apparatus and method - Google Patents
Brightness evening display apparatus and method Download PDFInfo
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- CN101425264B CN101425264B CN2008101810617A CN200810181061A CN101425264B CN 101425264 B CN101425264 B CN 101425264B CN 2008101810617 A CN2008101810617 A CN 2008101810617A CN 200810181061 A CN200810181061 A CN 200810181061A CN 101425264 B CN101425264 B CN 101425264B
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Abstract
The invention discloses a display device of brightness uniformity and a method thereof. The device comprises a flexible display module, a sensing module and a control module. The flexible display module comprises a plurality of display units. The sensing module is arranged in the bent area of the flexible display module and generates curvature signals correspondingly according to the bent curvature of the flexible display module. The control module receives curvature signals and controls the penetration rate of each display unit according to the curvature signals.
Description
Technical field
The present invention relates to a kind of display device and method, relate in particular to a kind of even brightness display device and method.
Background technology
Two-d display panel (as: display panels etc.) has plurality of advantages, as: characteristic such as frivolous, power saving, therefore two-d display panel replaces traditional display device gradually, and range of application is very extensive, for example: mobile computer, TV, PDA(Personal Digital Assistant), mobile phone, digital frame etc., all can see the application of two-d display panel.Recently in response to the different demands of polyelectron product more, more the display panel of flexible (bendable) is provided in development.
Traditionally, two-d display panel has backlight module, in order to provide two-d display panel required light source.Wherein, (light guide plate LGP), and utilizes the microstructure of light guide plate, and makes backlight module that uniform light source can be provided to have light guide plate in the backlight module.
Yet, when the flexible of two-d display panel tool, when bending shows, no matter panel presents the shape of indent (concave) or evagination (convex), all cause its brightness of some viewing area in the display panel bright especially, and produce in the dark especially situation of the brightness of some viewing area.That is to say that flexible two-d display panel when panel bending shows, can produce different uniformity coefficient in the brightness, and cause the not good problem of display effect.Therefore,, and can't make flexible two-d display panel in the process that bending shows if only adopt the microstructure of light guide plate mentioned in the previous transferring technology, keep each display unit brightness evenly.
Therefore, how solving the problem of the brightness irregularities of flexible display panel in the prior art, is a subject under discussion that needs to be resolved hurrily.
Summary of the invention
Technical matters to be solved by this invention is to propose a kind of even brightness display device and method, by device proposed by the invention or method, can allow display panel in the process that bending shows, still can keep the homogenising of brightness.So, the display effect of flexible display panel, the not crooked and influence that produces brightness irregularities of reason, and then can promote the display effect of whole display panel.
For achieving the above object, the present invention proposes a kind of even brightness display device, comprises: flexible display module, sensing module and control module.Flexible display module has most display units (pixel).Sensing module is arranged at the bending area of flexible display module, according to flexible display module crooked curvature, the corresponding curvature signal that produces.Control module receives curvature signal, and controls the penetrance of each display unit according to curvature signal.
And for achieving the above object, the present invention also proposes a kind of even brightness display packing, comprises the following step: the flexible display module with most display units is provided; According to flexible display module crooked curvature, the corresponding curvature signal that produces; Receive curvature signal, and control the penetrance of each display unit according to curvature signal.
By device proposed by the invention or method, can allow display panel in the process that bending shows, still can keep the homogenising of brightness.So, the display effect of flexible display panel, the not crooked and influence that produces brightness irregularities of reason, and then can promote the display effect of whole display panel.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is the first embodiment synoptic diagram of even brightness display device;
Fig. 2 A is that display unit is implemented the table of comparisons in the lumen degree one of flat state;
Fig. 2 B is that display unit is implemented the table of comparisons in the lumen degree one of indent state;
Fig. 2 C is that display unit is implemented the table of comparisons in the lumen degree one of evagination state;
Fig. 2 D is that display unit is implemented the table of comparisons in the average flow lightness one of each state;
Fig. 2 E is that display unit is implemented the table of comparisons in the penetrance one of each state;
Fig. 3 is the second embodiment synoptic diagram of even brightness display device;
Fig. 4 implements synoptic diagram for sensing module is provided with position one;
Fig. 5 is the process flow diagram of even brightness display packing.
Wherein, Reference numeral:
10: flexible display module
12: display unit
122: liquid crystal layer
124: inner layer dielectric layer
14: bending area
16: frame
20: sensing module
30: control module
Embodiment
Please refer to Fig. 1, this figure is depicted as the first embodiment synoptic diagram of even brightness display device.Even brightness display device proposed by the invention comprises: flexible display module 10, sensing module 20 and control module 30.
Wherein, sensing module 20 comprises strain gauge (strain gauge) or piezoelectric.When sensing module 20 comprises strain gauge, and during crooked flexible display module 10, the power of the flexible display module 10 that is passed to will make flexible display module 10 produce strains, and produce corresponding curvature signal by the strain gauge sensing.On the other hand, sensing module 20 comprises piezoelectric, when flexible display module 10 flexural deformations, can produce different magnitudes of voltage, and then produces corresponding curvature signal.
Please for being provided with position one, sensing module implements synoptic diagram with reference to Fig. 4 earlier.In this, display unit 12 comprises at least two metal levels, and wherein sensing module 20 just is arranged between the metal level.As shown in Figure 4, sensing module 20 can be arranged at liquid crystal (Liquid Crystal) layer 122 (interlayerdielectric is ILD) between the layer 124 with the internal layer dielectric.Because, sensing module 20 can be strain gauge (strain gauge) or piezoelectric, when sensing module 20 is arranged between the metal level and has strain gauge, if display unit 12 is because of the bending of flexible display module 10, make the sensing module 20 in the display unit 12 produce strain because of bending, this moment, sensing module 20 just can produce corresponding curvature signal.
On the other hand, when being arranged at sensing module 20 between the metal level when having piezoelectric,, and then produce corresponding curvature signal if display unit 12 because of flexible display module 10 flexural deformations, will make sensing module 20 produce different magnitudes of voltage.After producing curvature signal, can control the penetrance of each display unit 12 according to curvature signal, though allow display device be flat state or case of bending all can keep overall brightness evenly.
In this, flexible display module 10 is divided into nine zones, and measures flexible display module 10 respectively under each state, the lumen degree (brightness) that each is regional.Be flexible display module 10 when the flat state as Fig. 2 A, one of the lumen degree in nine zones is implemented the table of comparisons; Fig. 2 B is flexible display module 10 when the indent state, and one of the lumen degree in nine zones is implemented the table of comparisons; Fig. 2 C is flexible display module 10 when the evagination state, and one of the lumen degree in nine zones is implemented the table of comparisons.Can learn by Fig. 2 A～Fig. 2 C, flexible display module 10 under each state, the lumen degree that each is regional.
Please continue with reference to Fig. 2 D is flexible display module 10 when each state, and average flow lightness one is implemented the table of comparisons.In Fig. 2 D flexible display module 10 is divided into three scopes and is a, b and c, wherein the lumen degree of a, b, three scopes of c is on average got by Fig. 2 A～Fig. 2 C respectively.Illustrate, the lumen degree of a scope is promptly by the 1st three lumen degree of going average ((1481+1513+1547)/3=1513.67) among Fig. 2 A under the flat state; The lumen degree of b scope is promptly by the 2nd three lumen degree of going average ((2056+2163+1852)/3=2023.67) among Fig. 2 A under the flat state; Under the flat state lumen degree of c scope promptly by three lumen degree of the 3rd row among Fig. 2 A average ((2240+2296+2187)/3=2241), by that analogy.Therefore, by the flexible as can be known display module 10 of Fig. 2 D under each state, the lumen degree of each indication range.Numerical value by Fig. 2 D also can find out, before the adjustment of not passing through control module 30 as yet, and the lumen degree and the non-uniform Distribution of each indication range in the flexible display module 10.
No matter in order to allow flexible display module 10 (plane, indent, evagination) under any state, whole brightness can show evenly that therefore, an embodiment of the table of comparisons that control module 30 is comprised is shown in Fig. 2 E.The table of comparisons of Fig. 2 E has stored corresponding to each case of bending of each indication range (a, b, c) and the control value of penetrance.In this, control module 30 can be controlled the penetrance of each indication range according to the table of comparisons, makes the lumen degree of each scope all be positioned at a preset range, and then the lumen degree of each indication range is evenly distributed.
Illustrate, please be simultaneously with reference to Fig. 2 D and Fig. 2 E, when in the evagination state, the lumen degree of a scope is 1233.33, the case of bending of sensing module 20 sensing a scopes, and make control module 30 control a scope penetrances is 5.0%, and therefore with after the lumen degree cooperation penetrance originally, the shown lumen degree of a scope is 61.67 (1233.33*5.0%=61.67).The lumen degree and the penetrance of b scope done checking when getting the evagination state again, and this moment, the lumen degree of b scope was 1752.67, and its penetrance is 3.52%, and after both cooperated, the shown lumen degree of b scope was 61.69 (1752.67*3.52%=61.69).By that analogy, can verify each numerical value of other case of bending in the table of comparisons, can find each indication range of flexible display module 10, under with a kind of case of bending, shown lumen degree all the position within a preset range, that is to say that flexible display module 10 can allow integral body keep uniform brightness under with a kind of case of bending.
Must illustrate that in this above-mentioned Fig. 2 A～Fig. 2 E is only for for an embodiment as an illustration, not as limit.Only enumerate plane, indent, three kinds of different case of bendings of evagination among Fig. 2 A～Fig. 2 E, and only divide a, b, three indication ranges of c.In addition, also can be by a plurality of sensing modules 20 are set, in order to more accurate adjustment penetrance, for example: can be with the state of bending based on angle of bend, make different angle of bend can corresponding produce different curvature signal, again according to the penetrance of each display unit 12 in the flexible display module 10 of the more accurate adjustment of curvature signal.So, the lumen degree that can control display units 12 whole in the flexible display module 10 more accurately all is positioned at preset range, no matter make flexible display module 10 under each angle of bend, all can reach uniform brightness and show.
Please refer to the second embodiment synoptic diagram of Fig. 3 for the even brightness display device.In second embodiment, flexible display module 10 comprises frame 16, and frame 16 can be glue frame or metal frame etc., but not as limit.Sensing module 20 can be provided with in regular turn along one of them side of frame 16.In addition, sensing module 20 also can corresponding be arranged on the dual-sides of frame 16 certainly, and perhaps in order to save the bending area 14 that cost only is arranged on a certain side, that is sensing module 20 can be done the setting of varying number or position on demand.
Please refer to Fig. 5, this figure is depicted as the process flow diagram of even brightness display packing, comprises the following step.
Step S10: the flexible display module with most display units is provided.
Step S20: according to flexible display module crooked curvature, the corresponding curvature signal that produces.
Step S30: receive curvature signal, and control the penetrance of each display unit according to curvature signal.In step S30, can comprise the following step: store control value corresponding to the curvature of each display unit and penetrance in the table of comparisons.According to the table of comparisons, the lumen degree of controlling whole display units all is positioned at preset range.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (6)
1. an even brightness display device is characterized in that, comprises:
One flexible display module has most display units;
At least one sensing module is arranged at a bending area of this flexible display module, according to this bending area crooked curvature, the corresponding curvature signal that produces; And
One control module receives this curvature signal, and this control module comprises comparison list, stores the curvature signal corresponding to each this display unit, this control module according to this table of comparisons control all should a majority display unit brightness all be positioned at a preset range.
2. according to the even brightness display device of claim 1, it is characterized in that this flexible display module comprises a frame, this at least one sensing module is provided with in regular turn along at least one side of this frame.
3. according to the even brightness display device of claim 1, it is characterized in that this display unit comprises a liquid crystal layer and an inner layer dielectric layer, this sensing module is arranged between this liquid crystal layer and this inner layer dielectric layer.
4. according to the even brightness display device of claim 1, it is characterized in that this sensing module comprises a strain gauge.
5. according to the even brightness display device of claim 1, it is characterized in that this sensing module comprises a piezoelectric.
6. an even brightness display packing is characterized in that, comprises the following step:
Flexible display module with most display units is provided;
According to this flexible display module crooked curvature, corresponding generation one curvature signal; And
Receive this curvature signal, store control value corresponding to the curvature of each this display unit and penetrance in comparison list, and all be positioned at a preset range according to the brightness of whole these display units of this table of comparisons control.
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| CN2008101810617A CN101425264B (en) | 2008-11-20 | 2008-11-20 | Brightness evening display apparatus and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2793214A1 (en) * | 2013-04-16 | 2014-10-22 | Samsung Display Co., Ltd. | Flexible display device and method of controlling the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103853514A (en) * | 2012-12-04 | 2014-06-11 | 联想(北京)有限公司 | Information processing method and electronic equipment |
| CN104423919B (en) * | 2013-09-10 | 2017-12-26 | 联想(北京)有限公司 | A kind of image processing method and electronic equipment |
| KR102181236B1 (en) * | 2014-04-18 | 2020-11-23 | 삼성디스플레이 주식회사 | Display apparatus and method of controlling display apparatus |
| CN104751765B (en) * | 2015-03-09 | 2018-10-12 | 联想(北京)有限公司 | A kind of display control method and electronic equipment |
| CN104965343B (en) * | 2015-07-10 | 2017-12-26 | 东莞理工学院 | A kind of liquid crystal display and the method for making LCD brightness uniformly show |
| CN109212833B (en) * | 2018-10-30 | 2021-07-16 | 厦门天马微电子有限公司 | Curved surface display device |
| CN112542118A (en) * | 2019-09-20 | 2021-03-23 | 北京小米移动软件有限公司 | Flexible screen display adjusting method and device and storage medium |
| CN111276521A (en) * | 2020-02-11 | 2020-06-12 | 深圳市华星光电半导体显示技术有限公司 | Flexible display module and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2793214A1 (en) * | 2013-04-16 | 2014-10-22 | Samsung Display Co., Ltd. | Flexible display device and method of controlling the same |
| US9570042B2 (en) | 2013-04-16 | 2017-02-14 | Samsung Display Co., Ltd. | Flexible display device and method of controlling the same |
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