CN101256304A - Display module with high colour saturability - Google Patents
Display module with high colour saturability Download PDFInfo
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- CN101256304A CN101256304A CNA2007100849827A CN200710084982A CN101256304A CN 101256304 A CN101256304 A CN 101256304A CN A2007100849827 A CNA2007100849827 A CN A2007100849827A CN 200710084982 A CN200710084982 A CN 200710084982A CN 101256304 A CN101256304 A CN 101256304A
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Abstract
A display module with high color saturation, comprises liquid crystal panel and backlight module. The liquid crystal panel has multicolor filtering device, wherein the filtering device comprises a plurality of filter layers of at least four colors. The backlight module is mounted at one side of the liquid crystal panel and has light source unit. The light source unit is composed of a plurality of light-emitting diodes of at least three colors.
Description
Technical field
The invention relates to a kind of display apparatus module, and particularly relevant for a kind of display apparatus module with high color saturation.
Background technology
No matter the product of display is CRT monitor or LCD display, none is not to be used to provide the user to obtain functions such as image information or amusement.Especially with the Related product of LCD for very because it is light than CRT monitor, approach and do not account for volume, it is more and more higher that the city of LCD display accounts for rate.Moreover, many manufacturers also all are devoted to provide the LCD display of more economical material benefit of user and high image quality.Yet, being subject to the bottleneck of technical development, the resolution of LCD display, color saturation, brightness etc. all can't be satisfied high standard simultaneously.
In general, LCD display can utilize cold-cathode tube (cold cathode fluorescent lamp) or light emitting diode (light emitting diode) as backlight.Because advantages such as the volume of luminous secondary body is little and contaminative is low have been applied in many miniscope products recently gradually.LCD display is to utilize white light-emitting diode as backlight mostly, and the collocation colored filter is done the demonstration of color.With the example that is controlled to be of the color saturation of LCD display, the color saturation of this type product depends on the luminous frequency spectrum of white light-emitting diode and the purity of colored filter.The way that present stage reaches high color saturation is to use the higher colored filter of purity or uses the colored filter in polychrome territory.Yet when the purity of colored filter was high, its thickness can increase, and the penetrance of display integral body is reduced.In addition, when using the colored filter in polychrome territory,, display effect is reduced if the excitation frequency spectrum of the white light-emitting diode that uses is not high.
Summary of the invention
The invention relates to a kind of display apparatus module with high color saturation, it utilizes tool four looks above polychrome filtering structure and the light emitting diode do collocation demonstration of three looks above.The color of light emitting diode is except being to go to choose according to the color of polychrome filtering structure, also makes the luminous frequency spectrum of part light emitting diode be partial to a particular color of polychrome filtering structure, makes display apparatus module have high color saturation.
According to the present invention, a kind of display apparatus module is proposed, it comprises a liquid crystal panel and a backlight module.Liquid crystal panel has a polychrome filtering structure, and this polychrome filtering structure comprises a plurality of filter layers of at least four looks.Backlight module is arranged at a side of liquid crystal panel, and has a light source cell.This light source cell comprises a plurality of light emitting diodes of at least three looks.
According to the present invention, a kind of display apparatus module is also proposed, it comprises a liquid crystal panel and a backlight module.Liquid crystal panel has a polychrome filtering structure, and this polychrome filtering structure comprises a plurality of filter layers of at least four looks.Backlight module is arranged at a side of liquid crystal panel, and has a light source cell, and this light source cell comprises a plurality of light emitting diodes.These light emitting diodes have the luminescent wafer of at least three looks individually.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below:
Description of drawings
Figure 1A illustrates the stereographic map according to the display apparatus module of the embodiment of the invention one;
Figure 1B illustrates the sectional view of the display apparatus module of Figure 1A;
Fig. 2 illustrates the luminous frequency spectrum of adjustment primaries and first graph of a relation of relative light intensity;
Fig. 3 illustrates the synoptic diagram of the gamut range of display apparatus module under display mode of Figure 1B;
The polychrome filtering structure that Fig. 4 illustrates the display apparatus module of Figure 1B has the sectional view of white filter layer;
Fig. 5 A illustrates the stereographic map according to the display apparatus module of the embodiment of the invention two;
Fig. 5 B illustrates the sectional view of the display apparatus module of Fig. 5 A;
Fig. 6 illustrates the structural map of light emitting diode of the light source cell of Fig. 5 A;
Fig. 7 illustrates the luminous frequency spectrum of adjustment primaries and second graph of a relation of relative light intensity;
The polychrome filtering structure that Fig. 8 illustrates the display apparatus module of Fig. 5 B has the sectional view of white filter layer;
Fig. 9 A illustrates the stereographic map according to the display apparatus module of the embodiment of the invention three;
Fig. 9 B illustrates the sectional view of the display apparatus module of Fig. 9 A.
The main element symbol description
1,2,3: display apparatus module
10: liquid crystal panel
11: backlight module
12,22,32: the polychrome filtering structure
13,23,33: light source cell
14: go up Polarizer
15: following Polarizer
16: upper substrate
17: infrabasal plate
18: liquid crystal layer
19: light guide plate
121,221,321: red filter layer
122,222,322: green filter layer
123,223,323: blue color filter layer
124,324: the Yellow filter layer
125: black matrix"
126,226: white filter layer
131,331: red light emitting diodes
132,332: green LED
133,333: blue LED
224: the cyan filter layer
230: light emitting diode
231: the emitting red light wafer
232: the green emitting wafer
233: the blue-light-emitting wafer
334: yellow light-emitting diode
I, II: gamut range
Embodiment
Embodiment one
Please be simultaneously with reference to Figure 1A～1B, it is stereographic map according to the display apparatus module of the embodiment of the invention one that Figure 1A illustrates, Figure 1B illustrates the sectional view of the display apparatus module that is Figure 1A.Shown in Figure 1A～1B, display apparatus module 1 comprises a liquid crystal panel 10 and a backlight module 11, and backlight module 11 is arranged at a side of liquid crystal panel 10.Liquid crystal panel 10 comprises a polychrome filtering structure 12, and this polychrome filtering structure 12 comprises a plurality of filter layers of at least four looks.Backlight module 11 includes a light source cell 13, and this light source cell 13 comprises a plurality of light emitting diodes of at least three looks.
Wherein, in the light source cell 13, the luminous frequency spectrum of the light emitting diode of part is to do according to the colour gamut of at least one color of the glow color that does not belong to light source cell 13 in the polychrome filtering structure 12 to choose, and then can demonstrate the color that is suitable for display apparatus module 1 use when the driven for emitting lights led lighting.For example light source cell 13 comprises the light emitting diode of first color, second color and the 3rd color, and polychrome filtering structure 12 comprises the filter layer of first color, second color, the 3rd color and one the 4th color, therefore when the light emitting diode of driving light source unit 13 parts, be the luminous frequency spectrum that removes to choose light emitting diode according to the colour gamut of the 4th color.Preferably, be to choose the light emitting diode that the frequency spectrum of being partial to the 4th color removes drive part.First color of present embodiment, second color and the 3rd color for example are red, green and blue, and the 4th color is then done explanation with yellow.
Shown in Figure 1A～1B, light source cell 13 comprises a plurality of red light emitting diodes 131, green LED 132 and blue LED 133, is arranged at the side of light guide plate 19.12 of polychrome filtering structures comprise red filter layer (R) 121, green filter layer (G) 122, blue color filter layer (B) 123, Yellow filter layer (Y) 124 and a black matrix" 125.Because yellow color, thereby when the driven for emitting lights diode, can remove to adjust the luminous frequency spectrum of light emitting diode according to the colour gamut of yellow for being lacked in the light source cell 13.Please refer to Fig. 2, what it illustrated is to adjust the luminous frequency spectrum of primaries and first graph of a relation of relative light intensity.As shown in Figure 2, because the wavelength of yellow visible light is between redness and green, by this can be according to the luminous frequency spectrum of yellow to choose the luminous frequency spectrum of red light emitting diodes and green LED.The mode of choosing preferably selects to be partial to yellow luminous frequency spectrum.For example the luminous frequency spectrum of red light emitting diodes is selected the yellow colour gamut (being moved to the left) of deflection, and green LED also is a colour gamut (moving right) of selecting deflection yellow.Wherein, by the luminous frequency spectrum of the material character of adjusting the luminescent wafer in the light emitting diode with the adjustment light emitting diode.In addition, the light emitting diode of different colours is controlled by different driver (not illustrating), wherein all red light emitting diodes 131 series connection, green LED 132 series connection, and blue LED 133 can be connected, and each is gone the light emitting diode of every kind of color to drive by a driver.Select when the red light emitting diode 131 and the luminous frequency spectrum of green emitting secondary body 132, adjust the electric current of red light emitting diodes 131, green LED 132 and blue light-emitting diode 133 to reach white balance by driver again.
Please refer to Fig. 3, it illustrates is the synoptic diagram of the gamut range of Figure 1B display apparatus module under display mode.When light source cell 13 is made up of with blue LED 133 red light emitting diodes 131, green LED 132, collocation polychrome filtering structure 12 is made up of 121～124 of filter layers red, green, blue and yellow, under the mode of choosing of aforesaid luminous frequency spectrum during the driven for emitting lights diode, as shown in Figure 3, the gamut range of display apparatus module 1 becomes wide.The gamut range I of the display apparatus module of only forming by white light-emitting diode compared to light source cell, the gamut range II of the display apparatus module 1 of present embodiment one is big, and the color saturation of display apparatus module 1 rises to 102% by 76% approximately.
Certainly, though first color of present embodiment one, second color and the 3rd color are defined as redness, green and blue respectively, and the 4th color is yellow, yet in actual application, also can be red, green and blue, the 4th color of arranging in pairs or groups be cyan or purple.That is to say that polychrome filtering structure 12 is the filter layers that comprise redness, green, blueness and cyan, or comprise the filter layer of redness, green, blueness and purple.For instance, referring again to Fig. 2, because the wavelength of visible light of cyan is between blueness and green, thereby when driving blue LED and green LED, if can choose the blue LED and the green LED of the luminous frequency spectrum of being partial to cyan, then similarly has the effect of the color saturation that improves display apparatus module.
In addition, in order to increase the brightness of display apparatus module 1, polychrome filtering structure 12 more can comprise the filter layer of white.Display apparatus module with present embodiment one is an example, please refer to Fig. 4, and its polychrome filtering structure that illustrates the display apparatus module of Figure 1B has the sectional view of white filter layer.As shown in Figure 4, polychrome filtering structure 12 except the filter layer that comprises redness, green, blue and yellow 121～124, the white filter layers 126 that increased more.In addition, polychrome filtering structure 12 also can be the filter layer that comprises redness, green, blueness, cyan and white, or the filter layer of redness, green, blueness, purple and white, or be redness, green, blueness, cyan, purple and yellow filter layer.Certainly, the type of drive of the light emitting diode of light source cell 13 is still identical, and except having the effect that increases color saturation, the brightness of display apparatus module 1 more can promote greatly behind the white filter layer of still arranging in pairs or groups.
Embodiment two
Please be simultaneously with reference to Fig. 5 A～5B, it is stereographic map according to the display apparatus module of the embodiment of the invention two that Fig. 5 A illustrates, Fig. 5 B illustrates the sectional view of the display apparatus module of Fig. 5 A.The difference of the display apparatus module 2 of present embodiment two and the display apparatus module 1 of embodiment one is the design of polychrome filtering structure 22 and light source cell 23, will continue to use old label as for other similar elements, does not give unnecessary details at this.Shown in Fig. 5 A～5B, the light source cell 23 of display apparatus module 2 comprises a plurality of light emitting diodes 230, and these light emitting diodes 230 are arranged at light guide plate 19 sides, and has a plurality of luminescent wafers of at least three looks individually.Polychrome filtering structure 22 comprises the filter layer of at least four looks.Comprise that with polychrome filtering structure 22 red filter layer 221, green filter layer 222, blue color filter layer 223 are that example is done explanation with cyan filter layer 224 at present embodiment two.
Design as for light emitting diode please refer to Fig. 6, and it illustrates the structural map of light emitting diode of the light source cell that is Fig. 5 A.As shown in Figure 6, each light emitting diode 230 for example has emitting red light wafer 231, green emitting wafer 232 and blue-light-emitting wafer 233.Wherein, because the driving voltage difference of the luminescent wafer of every kind of color, therefore in fact three luminescent wafers 231～233 in each light emitting diode 230 respectively are to be controlled by three different drivers (not illustrating).For instance, the emitting red light wafer 231 in all light emitting diodes 230 is series connection, and green emitting wafer 232 is series connection, and blue-light-emitting wafer 233 is series connection.Thus, by the luminescent wafer 231～233 of size of current of adjusting each driver to drive different colours respectively.
The color of the filter layer that the polychrome filtering structure 22 of present embodiment two comprises is red, green, blueness and cyan, and wherein cyan is not for belonging to one of color of light emitting diode.Please refer to Fig. 7, it illustrates is to adjust the luminous frequency spectrum of primaries and second graph of a relation of relative light intensity.As shown in Figure 7, because the luminous frequency spectrum of cyan is between green and blueness, thereby the green emitting wafer 232 of each light emitting diode 230 and 233 other luminous frequency spectrums of blue-light-emitting wafer can select to be partial to the frequency spectrum of the colour gamut of cyan, to drive green emitting wafer 232 and blue-light-emitting wafer 233.
Certainly, though the polychrome filtering structure 22 of present embodiment two is the filter layers 221～224 that comprise redness, green, blueness and cyan, yet when in fact using, also can comprise redness, green, blueness and yellow filter layer, or the filter layer of red, green, blue and purple, even redness, green, blueness, cyan, purple and yellow filter layer.In addition, in order to increase the brightness of display apparatus module, can increase the filter layer of white in aforesaid various polychrome filtering structures, please refer to Fig. 8, its polychrome filtering structure that illustrates the display apparatus module of Fig. 5 B has the sectional view of white filter layer.As shown in Figure 8, except comprising the filter layer 221～224 of redness, green, blueness and cyan, comprise that also a white filter layer 226 is in order to increase the brightness of display apparatus module 2 in the polychrome filtering structure 22.
Embodiment three
The difference of the display apparatus module 3 of present embodiment three and the display apparatus module 1 of embodiment one is the design of light source cell 33, will continue to use old label as for other components identical, does not give unnecessary details at this.The light source cell 33 of the display apparatus module 3 of present embodiment three is a plurality of light emitting diodes that comprise at least three looks, and polychrome filtering structure 32 comprises a plurality of filter layers of at least four looks.Preferably, the color of light emitting diode can be corresponding with the color of polychrome filtering structure 32.For example, when the filter layer that polychrome filtering structure 32 has redness, green, blueness and white (or other colors), the light source cell 33 of then being arranged in pairs or groups can comprise redness, green and blue LED.
Yet except above-mentioned redness, green and blue LED, light source cell 33 also can comprise the four kind colors of the light emitting diode of other colors with corresponding polychrome filtering structure 32, the following drawings explanation.Please refer to Fig. 9 A～9B, it is stereographic map according to the display apparatus module of the embodiment of the invention three that Fig. 9 A illustrates, and Fig. 9 B illustrates the sectional view of the display apparatus module of Fig. 9 A.Shown in Fig. 9 B, polychrome filtering structure 32 has red filter layer 321, green filter layer 322, blue color filter layer 323 and Yellow filter layer 324.Shown in Fig. 9 A, light source cell 33 includes red light emitting diodes 331, green LED 332, blue LED 333 and yellow light-emitting diode 334 corresponding to polychrome filtering structure 32, and it is arranged at the side of light guide plate 19.Driver by the light emitting diode of each color goes to drive and adjust electric current, makes the luminous color saturation that reaches white balance and improve display apparatus module 3 of red light emitting diodes 331, green LED 332, blue LED 333 and yellow light-emitting diode 334.
The disclosed display apparatus module of the above embodiment of the present invention is in conjunction with the polychrome filtering structure more than four looks, and removes to choose light emitting diode more than three looks as light source according to the color of polychrome filtering structure.The luminous frequency spectrum of light emitting diode is to go to choose setting according to the color of polychrome filtering structure, and then when the driven for emitting lights diode, can demonstrate to be suitable for the color that display apparatus module uses, and further reaches the effect of high color saturation.
In sum, though the present invention discloses as above with preferred embodiment, so it is not in order to limit the present invention.The persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is as the criterion when looking the accompanying Claim person of defining.
Claims (23)
1. the display apparatus module of a tool high color saturation comprises:
Liquid crystal panel has the polychrome filtering structure, and this polychrome filtering structure comprises a plurality of filter layers of at least four looks; And
Backlight module is arranged at a side of this liquid crystal panel, and has light source cell, and this light source cell comprises a plurality of light emitting diodes of at least three looks.
2. display apparatus module as claimed in claim 1, the luminous frequency spectrum of some of those light emitting diodes goes to choose according to the colour gamut of at least one color of this three look that does not belong to this light source cell in this polychrome filtering structure.
3. display apparatus module as claimed in claim 2, wherein this light source cell is the light emitting diode that comprises first color, second color and the 3rd color at least, and this polychrome filtering structure is the filter layer that comprises this first color, this second color, the 3rd color and the 4th color at least.
4. display apparatus module as claimed in claim 3, wherein this first color is red, and this second color is green, and the 3rd color is blue.
5. display apparatus module as claimed in claim 4, wherein the 4th color is yellow, the red light emitting diodes of this light source cell and green LED other luminous frequency spectrum is chosen the yellow frequency spectrum of deflection.
6. display apparatus module as claimed in claim 4, wherein the 4th color is a cyan, the green LED of this light source cell and this blue LED other luminous frequency spectrum is chosen the frequency spectrum of deflection cyan.
7. display apparatus module as claimed in claim 4, wherein the 4th color is a purple, the red light emitting diodes of this light source cell and blue LED other luminous frequency spectrum is chosen the frequency spectrum of deflection purple.
8. display apparatus module as claimed in claim 4, wherein this polychrome filtering structure also comprises the filter layer of white.
9. display apparatus module as claimed in claim 4, wherein this polychrome filtering structure also comprises cyan, purple and yellow filter layer.
10. display apparatus module as claimed in claim 1, wherein this light source cell is the light emitting diode that comprises first color, second color and the 3rd color at least, and this polychrome filtering structure is the filter layer that comprises this first color, this second color, the 3rd color and the 4th color at least.
11. display apparatus module as claimed in claim 10, wherein this first color is red, and this second color is green, and the 3rd color is blue.
12. display apparatus module as claimed in claim 11, wherein the 4th color is a white.
13. display apparatus module as claimed in claim 11, wherein this light source cell also comprises the light emitting diode of the 4th color.
14. display apparatus module as claimed in claim 13, wherein the 4th color is yellow.
15. the display apparatus module of a tool high color saturation comprises:
Liquid crystal panel has the polychrome filtering structure, and this polychrome filtering structure comprises a plurality of filter layers of at least four looks; And
Backlight module is arranged at a side of this liquid crystal panel, and has light source cell, and this light source cell comprises a plurality of light emitting diodes, and those light emitting diodes have the luminescent wafer of at least three looks individually.
16. display apparatus module as claimed in claim 15, wherein the luminous frequency spectrum of the part luminescent wafer of those light emitting diodes goes to choose according to the colour gamut of at least one color of this three look that does not belong to this light source cell in this polychrome filtering structure.
17. display apparatus module as claimed in claim 16, wherein those light emitting diodes comprise the luminescent wafer of first color, the luminescent wafer of second color and the luminescent wafer of the 3rd color individually, and this polychrome filtering structure is the filter layer that comprises this first color, this second color, the 3rd color and the 4th color at least.
18. display apparatus module as claimed in claim 17, wherein this first color is red, and this second color is green, and the 3rd color is blue.
19. display apparatus module as claimed in claim 18, wherein the 4th color is yellow, and the emitting red light wafer of those light emitting diodes and green emitting wafer other luminous frequency spectrum is chosen the yellow frequency spectrum of deflection.
20. display apparatus module as claimed in claim 18, wherein the 4th color is a cyan, and the green emitting wafer of those light emitting diodes and blue-light-emitting wafer other luminous frequency spectrum is chosen the frequency spectrum of deflection cyan.
21. display apparatus module as claimed in claim 18, wherein the 4th color is a purple, and the emitting red light wafer of those light emitting diodes and blue-light-emitting wafer other luminous frequency spectrum is chosen the frequency spectrum of deflection purple.
22. display apparatus module as claimed in claim 18, wherein this polychrome filtering structure also comprises the filter layer of white.
23. display apparatus module as claimed in claim 18, wherein this polychrome filtering structure also comprises cyan, purple and yellow filter layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100849827A CN101256304A (en) | 2007-02-26 | 2007-02-26 | Display module with high colour saturability |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100849827A CN101256304A (en) | 2007-02-26 | 2007-02-26 | Display module with high colour saturability |
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| CN101256304A true CN101256304A (en) | 2008-09-03 |
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| CNA2007100849827A Pending CN101256304A (en) | 2007-02-26 | 2007-02-26 | Display module with high colour saturability |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793397A (en) * | 2015-03-16 | 2015-07-22 | 厦门天马微电子有限公司 | Liquid crystal display module and liquid crystal display device |
| CN105467674A (en) * | 2015-12-22 | 2016-04-06 | 深圳Tcl新技术有限公司 | Method for improving color gamut of liquid crystal display terminal and liquid crystal display terminal |
| CN111948850A (en) * | 2020-08-25 | 2020-11-17 | 惠州视维新技术有限公司 | Display module, display and determination method of primary colors |
-
2007
- 2007-02-26 CN CNA2007100849827A patent/CN101256304A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104793397A (en) * | 2015-03-16 | 2015-07-22 | 厦门天马微电子有限公司 | Liquid crystal display module and liquid crystal display device |
| US9939681B2 (en) | 2015-03-16 | 2018-04-10 | Xiamen Tianma Micro-Electronics Co., Ltd. | Liquid crystal display module and liquid crystal display device |
| CN104793397B (en) * | 2015-03-16 | 2018-11-02 | 厦门天马微电子有限公司 | Liquid crystal display die set and liquid crystal display device |
| CN105467674A (en) * | 2015-12-22 | 2016-04-06 | 深圳Tcl新技术有限公司 | Method for improving color gamut of liquid crystal display terminal and liquid crystal display terminal |
| WO2017107386A1 (en) * | 2015-12-22 | 2017-06-29 | 深圳Tcl新技术有限公司 | Method for improving color gamut of liquid crystal display terminal, and liquid crystal display terminal |
| CN105467674B (en) * | 2015-12-22 | 2019-09-20 | 深圳Tcl新技术有限公司 | Liquid crystal display terminal colour gamut method for improving and liquid crystal display terminal |
| CN111948850A (en) * | 2020-08-25 | 2020-11-17 | 惠州视维新技术有限公司 | Display module, display and determination method of primary colors |
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