CN108508649B - Chromaticity adjusting method of liquid crystal display device, liquid crystal display device and terminal equipment - Google Patents
Chromaticity adjusting method of liquid crystal display device, liquid crystal display device and terminal equipment Download PDFInfo
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- 238000000411 transmission spectrum Methods 0.000 claims abstract description 75
- 238000000295 emission spectrum Methods 0.000 claims abstract description 45
- 238000004383 yellowing Methods 0.000 abstract description 2
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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Abstract
The invention discloses a chromaticity adjusting method of a liquid crystal display device, the liquid crystal display device and terminal equipment, wherein the chromaticity adjusting method of the liquid crystal display device comprises the steps that the liquid crystal display device comprises a backlight source and a liquid crystal display panel positioned on the backlight source, the liquid crystal display panel comprises a color filter layer, and the chromaticity adjusting method comprises the steps of adjusting the transmittance of a transmission spectrum of a blue color resistance in the color filter layer at the position corresponding to the maximum light intensity of a blue emission spectrum peak of the backlight source; and the ratio of the transmittance of the transmission spectrum of the blue color resistance in the adjusted color filter layer corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source to the maximum transmittance of the transmission spectrum of the blue color resistance in the adjusted color filter layer is less than 0.84. Compared with the prior art, the technical scheme of the invention reduces the transmittance of blue color resistance in the color filter layer to blue light, improves the chroma yellowing problem of the liquid crystal display device caused by the light alignment film, and simultaneously improves the dominant wavelength of blue backlight.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a chromaticity adjusting method of a liquid crystal display device, the liquid crystal display device and terminal equipment.
Background
For the liquid crystal display device, the contrast of the liquid crystal display device is reduced and the display quality of the liquid crystal display device is reduced by the traditional rubbing alignment technology, the photo-alignment technology is widely applied because the problem of rubbing alignment can be solved, but the transmittance of a photo-alignment film to blue light is low, so that the chromaticity of the liquid crystal display device is yellow.
In order to solve the problem of yellow chromaticity of the liquid crystal display device caused by the light alignment film, the transmittance of the color filter layer to red light, green light and blue light needs to be adjusted simultaneously, and the transmittance of the color filter layer to blue light needs to be improved in the adjustment process, but the improvement of the transmittance of the color filter layer to blue light can cause the dominant wavelength of blue backlight to be reduced, so that the requirement of the display device on the dominant wavelength of blue light is difficult to meet.
Disclosure of Invention
In view of this, the present invention provides a chromaticity adjusting method for a liquid crystal display device, and a terminal device, which reduce the transmittance of blue color resistance in a color filter layer to blue light and improve the dominant wavelength of blue backlight, compared with the prior art.
In a first aspect, an embodiment of the present invention provides a chromaticity adjusting method for a liquid crystal display device, where the liquid crystal display device includes a backlight source and a liquid crystal display panel located on the backlight source, the liquid crystal display panel includes a color filter layer, and the chromaticity adjusting method includes:
adjusting the transmittance of the transmission spectrum of the blue color resistance in the color filter layer corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source; adjusting the transmittance of the transmission spectrum of the blue color resistance in the color filter layer corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source; and the ratio of the transmittance of the adjusted transmission spectrum of the blue color resistance in the color filter layer corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source to the maximum transmittance of the transmission spectrum of the blue color resistance in the color filter layer is less than 0.84.
In a second aspect, an embodiment of the present invention further provides a liquid crystal display device, including:
the liquid crystal display panel comprises a backlight source and a liquid crystal display panel positioned on the backlight source, wherein the liquid crystal display panel comprises a color filter layer;
the ratio of the transmittance of the blue color resistance in the color filter layer at the position corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source to the maximum transmittance of the transmission spectrum of the blue color resistance in the color filter layer is less than 0.84.
In a third aspect, an embodiment of the present invention further provides a terminal device, including the liquid crystal display device according to the second aspect.
The embodiment of the invention provides a chromaticity adjusting method of a liquid crystal display device, the liquid crystal display device and terminal equipment, wherein the liquid crystal display device comprises a backlight source and a liquid crystal display panel positioned on the backlight source, the liquid crystal display panel comprises a color filter layer, and the transmittance of the transmission spectrum of a blue color resistor in the color filter layer corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source is adjusted, so that the ratio of the transmittance of the transmission spectrum of the blue color resistor in the adjusted color filter layer corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source to the maximum transmittance of the transmission spectrum of the blue color resistor in the adjusted color filter layer is smaller than 0.84, the transmittance of the blue color resistor in the color filter layer to blue light is reduced compared with the prior art, and the dominant wavelength of the blue backlight is improved.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of transmission spectra of a photo alignment film and a rubbing alignment film;
FIG. 2 is a chromaticity diagram of the liquid crystal display device;
fig. 3 is a schematic structural diagram of a liquid crystal display device according to an embodiment of the invention;
fig. 4 is a schematic flowchart illustrating a chromaticity adjusting method of an lcd apparatus according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a transmission spectrum of a color filter layer and an emission spectrum of a backlight source in a liquid crystal display device according to an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. Throughout this specification, the same or similar reference numbers refer to the same or similar structures, elements, or processes. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The embodiment of the invention provides a chromaticity adjusting method of a liquid crystal display device, wherein the liquid crystal display device comprises a backlight source and a liquid crystal display panel positioned on the backlight source, the liquid crystal display panel comprises a color filter layer, and the chromaticity adjusting method comprises the steps of adjusting the transmittance of a transmission spectrum of a blue color resistor in the color filter layer corresponding to the maximum light intensity of a blue emission spectrum peak of the backlight source; and the ratio of the transmittance of the adjusted transmission spectrum of the blue color resistance in the color filter layer at the position corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source to the maximum transmittance of the transmission spectrum of the blue color resistance in the color filter layer is less than 0.84.
For the liquid crystal display device, the contrast of the liquid crystal display device is reduced and the display quality of the liquid crystal display device is reduced by the traditional rubbing alignment technology, the photo-alignment technology is widely applied because the problem of rubbing alignment can be solved, but the transmittance of a photo-alignment film to blue light is low, so that the chromaticity of the liquid crystal display device is yellow. FIG. 1 is a schematic diagram of the transmission spectra of a photo-alignment film and a rubbing alignment film, as shown in FIG. 1, curve 11 is the transmission spectrum of the rubbing alignment film, and curve 12 is the transmission spectrum of the photo-alignment film, and it can be seen from FIG. 1 that the transmittance of the photo-alignment film to blue light is lower compared to the rubbing alignment film, that is, the transmittance of curve 12 to the short wavelength band corresponding to curve 11 is lower, so that the chromaticity of the liquid crystal display device is yellow.
In order to solve the problem of yellow chromaticity of the liquid crystal display device caused by the optical alignment film, the transmittances of a red color resistor, a green color resistor and a blue color resistor in a color filter layer of a liquid crystal display panel can be adjusted simultaneously so as to reduce the light transmittance of the color filter layer to green light and improve the transmittance of the color filter layer to blue light, but the improvement of the transmittance of the color filter layer to blue light can cause the reduction of the dominant wavelength of blue backlight. Specifically, a certain spectral color is mixed with a determined standard illuminator according to a certain proportion to match a sample color, and the wavelength of the spectral color is the dominant wavelength of the sample color. Fig. 2 is a chromaticity diagram of the liquid crystal display device, as shown in fig. 2, an abscissa represents an x value of a color coordinate in the chromaticity diagram, and an ordinate represents a y value of the color coordinate in the chromaticity diagram, corresponding to the chromaticity diagram shown in fig. 2, a white point coordinate is connected with a blue chromaticity point corresponding to the backlight source, and an intersection point of an extension line and a color spectrum locus is a dominant wavelength of the blue backlight source.
Fig. 2 illustrates a method for determining the dominant wavelength, an exemplary white point o and a blue chromaticity point b corresponding to the backlight source are marked, and a connection line between the white point o and the blue chromaticity point b is an extension line, so that the dominant wavelength of the blue backlight can be determined to be 470 nm. When the blue color resistance in the color filter layer is adjusted to increase the transmittance of the color filter layer to blue light, the blue chromaticity point corresponding to the backlight source moves to the lower right corner, for example, the blue chromaticity point corresponding to the backlight source moves to the position b1, and referring to the dominant wavelength marked on the color spectrum locus of fig. 2, it can be seen that the dominant wavelength of the blue backlight is reduced to 440nm relative to the dominant wavelength 470nm of the blue backlight before adjustment.
The liquid crystal display device comprises a backlight source and a liquid crystal display panel positioned on the backlight source, wherein the liquid crystal display panel comprises a color filter layer, and the transmittance of the transmission spectrum of a blue color resistor in the color filter layer at the position corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source is adjusted, so that the ratio of the transmittance of the transmission spectrum of the blue color resistor in the adjusted color filter layer at the position corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source to the maximum transmittance of the transmission spectrum of the blue color resistor in the adjusted color filter layer is smaller than 0.84, the transmittance of the blue color resistor in the color filter layer to blue light is reduced compared with the prior art, and the dominant wavelength of the blue backlight is improved.
The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
Fig. 3 is a schematic structural diagram of a liquid crystal display device according to an embodiment of the present invention, and as shown in fig. 3, the liquid crystal display device includes a backlight 1 and a liquid crystal display panel 2 located on the backlight 1, and the liquid crystal display panel 2 includes a color filter layer 211. The color filter layer 211 includes a red color filter R, a green color filter G, and a blue color filter B, thereby achieving a color display effect of the liquid crystal display device. It should be noted that fig. 3 only exemplarily sets the color resistance matrix arrangement in the color filter layer 211, and the embodiment of the present invention does not limit the arrangement manner of the color resistances of the colors in the color filter layer 211.
Fig. 4 is a schematic flow chart of a chromaticity adjusting method of a liquid crystal display device according to an embodiment of the present invention, which can be applied to a scene where chromaticity of the liquid crystal display device needs to be adjusted, as shown in fig. 4, the chromaticity adjusting method of the liquid crystal display device includes:
s110, adjusting the transmittance of the transmission spectrum of the blue color resistance in the color filter layer corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source; and the ratio of the transmittance of the transmission spectrum of the blue color resistance in the adjusted color filter layer corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source to the maximum transmittance of the transmission spectrum of the blue color resistance in the adjusted color filter layer is less than 0.84.
Fig. 5 is a schematic diagram of a transmission spectrum of a color filter layer and an emission spectrum of a backlight source in a liquid crystal display device according to an embodiment of the invention. Referring to fig. 3 and 5, a curve 1 is a blue emission spectrum of a backlight 1 in a liquid crystal display device, a curve 2 is a transmission spectrum of a green color filter G in a color filter layer 211, a curve 3 is a transmission spectrum of a red color filter R in the color filter layer 211, a curve 4 is a transmission spectrum of a blue color filter B in the color filter layer 211 after adjustment, a curve 5 is a transmission spectrum of a blue color filter B in the color filter layer 211 in a liquid crystal display device in the related art, an abscissa represents a wavelength in nm, and an ordinate represents normalized light intensity corresponding to the curve 1, and an ordinate represents normalized transmittance corresponding to the curve 2, the curve 3, the curve 4, and the curve 5.
The maximum intensity of the blue emission spectrum peak of the backlight source 1 is the point C on the curve 1, and the transmittance of the transmission spectrum of the blue color resistor B in the color filter layer 211 at the maximum intensity of the blue emission spectrum peak of the backlight source 1 corresponds to the transmittance of the point a on the curve 4, which is the same as the point C in the abscissa, and corresponds to the ordinate. The maximum transmittance of the transmission spectrum of the blue color filter B in the color filter layer 211 is the ordinate corresponding to the point B on the curve 4. The transmittance of the blue color resist B in the color filter layer 211 at the position where the transmission spectrum corresponds to the maximum intensity of the blue emission spectrum peak of the backlight, that is, the ordinate of the point a is adjusted, the ordinate of the point a after adjustment is set to a0, that is, the transmittance of the blue color resist B in the color filter layer 211 at the position where the transmission spectrum corresponds to the maximum intensity of the blue emission spectrum peak of the backlight is set to a0, and the ordinate of the point B is set to B0, that is, the maximum transmittance of the transmission spectrum of the blue color resist B in the color filter layer 211 is set to B0.
In fig. 5, by setting the ratio of the transmittance at the maximum intensity of the blue emission spectrum peak of the backlight 1 corresponding to the transmission spectrum of the blue color resist B in the color filter layer 211 after adjustment to be less than 0.84, that is, setting the ratio of a0 to B0 to be less than 0.84, the curve 4 reduces the transmittance at the maximum intensity of the blue color spectrum peak of the backlight 1 corresponding to the transmission spectrum of the blue color resist B in the color filter layer 211 relative to the curve 5, that is, reduces the transmittance of the blue color resist B in the color filter layer 211 to blue light relative to the prior art, and with reference to fig. 2, the transmittance of the blue color resist B in the color filter layer 211 reduces the transmittance of the blue light to make the blue chromaticity point corresponding to the backlight 1 move upward, for example, the blue chromaticity point corresponding to the backlight moves to the position B2, and with reference to the dominant wavelength marked on the color spectrum locus of fig. 2, it can be seen that, by adjusting the transmittance at the position where the transmission spectrum of the blue color resistor B in the color filter layer 211 corresponds to the maximum light intensity of the blue emission spectrum peak of the backlight source, the ratio of the transmittance at the position where the transmission spectrum of the blue color resistor B in the color filter layer 211 corresponds to the maximum light intensity of the blue emission spectrum peak of the backlight source to the maximum transmittance of the transmission spectrum of the blue color resistor B in the color filter layer 211 is smaller than 0.84, which improves the dominant wavelength of the blue backlight compared with the prior art.
Optionally, as shown in fig. 5, when the transmission spectrum of the blue color resist B in the color filter layer 211 is adjusted, only the transmittance of the portion of the color filter layer 211 where the transmission spectrum of the blue color resist B overlaps with the blue emission spectrum peak of the backlight 1, that is, only the portion in the region D corresponding to the curve 4 in fig. 5 is adjusted, so that the ratio of the transmittance of the color filter layer 211 where the transmission spectrum of the blue color resist B corresponds to the maximum light intensity of the blue emission spectrum peak of the backlight 1 to the maximum transmittance of the blue color resist B in the color filter layer 211 is smaller than 0.84 by adjusting the transmittance of the color filter layer 211 where the transmission spectrum of the blue color resist B corresponds to the maximum light intensity of the blue emission spectrum peak of the backlight 1, the transmittance of the blue color resist B in the color filter layer 211 is reduced, the dominant wavelength of the blue backlight is increased, and difficulty in adjusting the transmittance of the blue color resist B in the color filter layer 211 in a large range can be avoided A big problem. In addition, since only the transmittance of the portion of the color filter layer 211 where the transmission spectrum of the blue color filter B overlaps the peak of the blue emission spectrum of the backlight 1 is adjusted, the maximum transmittance of the transmission spectrum of the blue color filter B in the color filter layer 211, that is, the adjustment of the ordinate corresponding to the point B on the curve 4 in fig. 5, is avoided, and the influence of simultaneously adjusting the transmittance of the color filter layer 211 for red light, green light, and blue light to solve the problem of chromaticity yellowing of the liquid crystal display device is reduced.
Optionally, a ratio of a transmittance of the adjusted transmission spectrum of the blue color resistance in the color filter layer corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source to the maximum transmittance of the transmission spectrum of the blue color resistance in the color filter layer may be set to be greater than 0.5. In order to solve the problem that the white point of the liquid crystal display device deviates from the target white point, the prior art adjusts the white point of the liquid crystal display device by using an RGB 3gamma method, but causes the loss of at least 10% of the brightness and the contrast of the liquid crystal display device, by only adjusting the transmittance of the part where the transmission spectrum of the blue color resistance B in the color filter layer 211 is overlapped with the blue emission spectrum peak of the backlight source 1 and setting the ratio of the transmittance of the transmission spectrum of the blue color resistance B in the adjusted color filter layer 211 corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source 1 to the maximum transmittance of the transmission spectrum of the blue color resistance B in the color filter layer 211 to be more than 0.5, the ratio of the transmittance of the transmission spectrum of the blue color resistance in the adjusted color filter layer corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source to the maximum transmittance of the transmission spectrum of the blue color resistance B in the color filter layer is avoided from being too small, the brightness and contrast of the liquid crystal display device are improved compared with the RGB 3gamma adjustment method.
The liquid crystal display device comprises a backlight source and a liquid crystal display panel positioned on the backlight source, wherein the liquid crystal display panel comprises a color filter layer, and the transmittance of the transmission spectrum of a blue color resistor in the color filter layer at the position corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source is adjusted, so that the ratio of the transmittance of the transmission spectrum of the blue color resistor in the adjusted color filter layer at the position corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source to the maximum transmittance of the transmission spectrum of the blue color resistor in the adjusted color filter layer is smaller than 0.84, the transmittance of the blue color resistor in the color filter layer to blue light is reduced compared with the prior art, and the dominant wavelength of the blue backlight is improved.
The embodiment of the present invention further provides a liquid crystal display device, as shown in fig. 3, the liquid crystal display device includes a backlight 1 and a liquid crystal display panel 2 located on the backlight 1, and along a direction away from the backlight 1, the liquid crystal display panel 2 includes an array substrate 22, the liquid crystal layer 23 and the color filter substrate 21, the color filter substrate 21 includes a color filter layer 211, and a ratio of a transmittance at a position where a transmission spectrum of a blue color resistor B in the color filter layer 211 corresponds to a maximum light intensity of a blue emission spectrum peak of the backlight 1 to a maximum transmittance of the transmission spectrum of the blue color resistor B in the color filter layer 211 is set to be less than 0.84, so that a transmittance of the blue color resistor B in the color filter layer 211 to blue light is reduced, in combination with fig. 2, the transmittance of the blue color resistor B in the color filter layer 211 to blue light is reduced, so that a blue chromaticity point corresponding to the backlight 1 moves upward, and a dominant wavelength of the blue backlight is increased.
Optionally, a ratio of a transmittance of the transmission spectrum of the blue color resistor B in the color filter layer 211 corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight 1 to the maximum transmittance of the transmission spectrum of the blue color resistor B in the color filter layer 211 may be set to be greater than 0.5. In order to solve the problem that the white point of the liquid crystal display device deviates from the target white point, the RGB 3gamma method is used to adjust the white point of the liquid crystal display device, but the loss of at least 10% of the brightness and the contrast of the liquid crystal display device can be caused, by setting the ratio of the transmittance of the transmission spectrum of the blue color resistance B in the adjusted color filter layer 211 corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source 1 to the maximum transmittance of the transmission spectrum of the blue color resistance B in the color filter layer 211 to be more than 0.5, the problem that the brightness of the liquid crystal display device is seriously reduced because the ratio of the transmittance of the transmission spectrum of the blue color resistance in the adjusted color filter layer corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source to the maximum transmittance of the transmission spectrum of the blue color resistance B in the color filter layer is too small is solved, and the brightness and the contrast of the liquid crystal display device are improved compared with the brightness and the contrast of the liquid crystal display device by using an RGB 3gamma adjusting method.
Optionally, the backlight source may include a blue LED, and red phosphor and green phosphor coated on the blue LED, and the blue LED added with the red phosphor and the green phosphor can enable the backlight source to have a higher excitation peak in a blue band compared to a common white LED, which is beneficial to improving the color gamut of the liquid crystal display device.
The embodiment of the present invention further provides a terminal device, which includes the liquid crystal display device according to the above embodiment, so that the terminal device according to the embodiment of the present invention has the beneficial effects described in the above embodiment, and details are not repeated here. For example, the terminal device may be an in-vehicle terminal device, and by setting a ratio of a transmittance at a position where a transmission spectrum of the blue color resistor B in the color filter layer 211 of the terminal device corresponds to a maximum light intensity of a blue emission spectrum peak of the backlight 1 to a maximum transmittance of a transmission spectrum of the blue color resistor B in the color filter layer 211 to be less than 0.84, a requirement of the in-vehicle terminal device for a blue dominant wavelength of the backlight can be met.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (8)
1. The method for adjusting the chromaticity of the liquid crystal display device is characterized in that the liquid crystal display device comprises a backlight source and a liquid crystal display panel positioned on the backlight source, the liquid crystal display panel comprises a color filter layer, and the method for adjusting the chromaticity comprises the following steps:
adjusting the transmittance of the transmission spectrum of the blue color resistance in the color filter layer corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source; and the ratio of the transmittance of the adjusted transmission spectrum of the blue color resistance in the color filter layer corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source to the maximum transmittance of the transmission spectrum of the blue color resistance in the color filter layer is more than 0 and less than 0.84.
2. The chromaticity adjusting method according to claim 1, wherein a transmittance of a portion where a transmission spectrum of a blue color resistance in the color filter layer overlaps with a peak of a blue emission spectrum of the backlight is adjusted.
3. The chromaticity adjusting method according to claim 1, wherein a ratio of a transmittance of a transmission spectrum of the adjusted blue color filter in the color filter layer at a position corresponding to a maximum light intensity of a blue emission spectrum peak of the backlight source to a maximum transmittance of a transmission spectrum of the blue color filter in the color filter layer is greater than 0.5.
4. A liquid crystal display device, comprising:
the liquid crystal display panel comprises a backlight source and a liquid crystal display panel positioned on the backlight source, wherein the liquid crystal display panel comprises a color filter layer;
the ratio of the transmittance of the blue color resistance in the color filter layer at the position corresponding to the maximum light intensity of the blue emission spectrum peak of the backlight source to the maximum transmittance of the transmission spectrum of the blue color resistance in the color filter layer is more than 0 and less than 0.84.
5. The liquid crystal display device according to claim 4, wherein a ratio of a transmittance of a transmission spectrum of the blue color resist in the color filter layer corresponding to a maximum light intensity of a peak of a blue emission spectrum of the backlight to a maximum transmittance of a transmission spectrum of the blue color resist in the color filter layer is greater than 0.5.
6. The LCD device of claim 4, wherein the backlight comprises a blue LED and red and green phosphors coated on the blue LED.
7. A terminal device characterized by comprising the liquid crystal display device according to any one of claims 4 to 6.
8. The terminal device according to claim 7, wherein the terminal device comprises a vehicle-mounted terminal device.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1383501A (en) * | 2000-05-04 | 2002-12-04 | 皇家菲利浦电子有限公司 | Assembly of display device and illumination system |
| TW579491B (en) * | 2001-03-06 | 2004-03-11 | Ibm | Liquid crystal display device and display device |
| CN1949046A (en) * | 2005-10-11 | 2007-04-18 | 比亚迪股份有限公司 | High colour purity CSTN liquid crystal display and method of implementing high colour purity |
| CN101031843A (en) * | 2004-08-18 | 2007-09-05 | 索尼株式会社 | Backlight device and color liquid crystal display apparatus |
| CN102722050A (en) * | 2012-03-19 | 2012-10-10 | 友达光电股份有限公司 | Color filter and liquid crystal display device |
| CN105474081A (en) * | 2013-08-23 | 2016-04-06 | 夏普株式会社 | Liquid crystal display |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1383501A (en) * | 2000-05-04 | 2002-12-04 | 皇家菲利浦电子有限公司 | Assembly of display device and illumination system |
| TW579491B (en) * | 2001-03-06 | 2004-03-11 | Ibm | Liquid crystal display device and display device |
| CN101031843A (en) * | 2004-08-18 | 2007-09-05 | 索尼株式会社 | Backlight device and color liquid crystal display apparatus |
| CN1949046A (en) * | 2005-10-11 | 2007-04-18 | 比亚迪股份有限公司 | High colour purity CSTN liquid crystal display and method of implementing high colour purity |
| CN102722050A (en) * | 2012-03-19 | 2012-10-10 | 友达光电股份有限公司 | Color filter and liquid crystal display device |
| CN105474081A (en) * | 2013-08-23 | 2016-04-06 | 夏普株式会社 | Liquid crystal display |
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