TW201024850A - A liquid crystal display comprising - Google Patents

Abstract

A liquid crystal display comprising a backlight module with a green spectrum mated with a color filter is provided, and the light of the green spectrum can pass through the color filter. The green spectrum comprises a first peak occurred in 480-500nm, a second peak occurred in 505-525nm, and a third peak occurred in 535-555nm. Moreover, the color filter comprising a plurality of black matrixes, red, green and blue pixels must be mated with the green spectrum of the back light module. Per green pixel under the standard C light source of CIE has a y coordinate Gy on the CIE 1931 coordinate, and the Gy ≥ 0.635. The coordinate of the green pixels on the CIE 1931 coordinate is improved, so that the LCD increases the NTSC area and fits the wide color space standard related to the Adobe RGB.

Description

201024850 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a ship-age ageing device, and more particularly to a liquid crystal display device that improves NTSG and conforms to the Ad〇be RGB specification. [Prior Art] According to the rapid development of Internet and radio communication technology, Longhua has gradually become popular among individuals. Therefore, portable information products such as notebook computers, mobile phones, digital cameras, and personal digital assistants are all available. Rapid development and growth. Because the liquid crystal display has the advantages of thinness, light weight, low power consumption, no pollution, and the advantages of semi-conducting technology, it is in line with the rise of the Internet digital information market. In the past 30 years, the application of products has grown more rapidly. From the early application of low-information capacity display products such as simple towns and computers, it has gradually expanded to sophisticated monitors or portable information products. Its technology covers materials, equipment, processes, product features and many other aspects of development, it can be said that it is a thousand miles. Today, it continues to grow with amazing momentum, and it has become the mainstream of the next-generation flat display device market. At present, digital display devices (such as electric sports cameras, rear projection TVs, TVs, LCD monitors and LCD TVs) are rumored that the products on the market are full of colors. Including domestic and European, American, and Japanese big factories, all of them are fighting for rights in the market. However, in various large stores, we can read the TV-words of various manufacturers, and the image quality will be displayed immediately. Let consumers compare the performance of image quality (such as brightness, contrast, color reproduction and color cast) between them, and compare them to purchase. The reproduction of color has a great influence on the image product f, which will affect the consumer's choice of products. The color shirt reproduction is a technology that is in the field of liquid crystal display. What kind of color is right, it is often seen. However, in this field, with the continuous launch of high-quality digital TVs around the world, in the era of image quality, people began to pay attention to it. The two colors of the color form are added to white. The color light addition method is described as follows: = (Red), green (green), blue (9) ue) The three colors 'is the basic component of mixing and generating other color lights. 'The two colors are independent' and it is impossible to make any color light from the other two colors. Mixed production 201024850 students. RGB tri-color light is mixed in different proportions to produce most of the colors in nature. The RGB three primary colors (two primary colors π) are added in equal proportions to obtain white light. The more light that is mixed, the higher the brightness and the lower the chroma. Used in computer screens, TVs, projectors, etc., with complementary colors, w (white) two. The three primary colors are added in any two colors to obtain a complementary color. Color is the message produced by the human eye, and it is transmitted to the brain to get the feeling of colorful. The color #> value can be derived from X, Y ′ Z, and the color value can be calculated by the following formula, and the X, y value converted from XYZ is green to CIE 1931. X = kZ Rp- )s(i }χ(λ ) m . .. r = kXR〇^)s(k )ν(λ) mz = r(k )s(/. } m K=_ 19〇m — 8(λ): Relative spectral power distribution of the illuminant Χ(λ), y(X), ζ(λ): Color-matching functions for C1E 2*

Standard Observer (1931) R(X); Spectral reflectance of specimen

= x .Κ -r ^

- Y

X + Y+Z = z

X + 7 + Z y + z = 1 The NTSC color gamut is a standard. Because of this standard, display manufacturers can use this to determine the color gamut performance of the display'. For example, a typical LCD display has 75% NTSC, and it has a color rendering capability of 75% NTSC color gamut. The color gamut color rendering capability is different from the color display capabilities of general computer screen specifications (such as 1.67 million colors). High-definition digital TV (high-quality TV 201024850 visual i because of the must-have secret, so its color gamut table Wei Li, is quite embarrassing. For example, a significant color gamut area ratio of 72% NTSC' indicates the display Can display (10)

〇72% NTSC: long ' Δ means three = the two primary color gamut area is the known three primary color chromaticity coordinates, the leg and theorem to find its area, as shown below, a, b, 〇 respectively _ three The area of the individual corners of the color coordinates is NTSC. s = a + b + c/2 Δ = s(s - a)(s - b)(s - c) Currently, the color reproduction of ϋ is displayed. There are three different update frequencies depending on the projected image: PAL and SECAM . The NTSC color television system is the standard for the singularity of television broadcasts defined by the National Television Standards Committee of 952, called the Orthogonal Balanced Modulation System. pAL is called line-by-line inverting quadrature balance. The amplitude modulation system is a color television broadcasting standard established by Germany in 1962. China uses this system to view the standard of television broadcasting, which is called “scale transmission color and storage”. These three kinds of TVs are all compatible systems. The PAL color TV system stipulates that the total number of lines in the image is milk, and the cat is separated. The sweeping cat frequency is 15625 Hz, the period is 64#s; the field sweeping cat frequency is Shi, the building frequency is 25Hz. When the TV signal is sent, the time for transmitting images in each line is recorded, and the rest is 11. 8/ Zs is the reverse time of sweeping the cat, no image is transmitted. The number of sweeping cats per field is 625/2=312. 5 lines, of which 25 lines are retweed and no image is transmitted.

image. The color model uses YUV. The horizontal sharpness line of the image should be the number of black and white vertical bars that can be clearly distinguished on the image divided by the aspect ratio factor. The formula for calculating the level of TV is: Level Definition TVL/PH = Effective Line Time (//s) x2 X Frequency Width (MHz) | Aspect Ratio Factor in PAL Color TV Standard '- Frame TV Picture from 625 The line scan line is composed, that is, there are 625 pictures = line, and the ratio of the width to the height of the TV face is 4, 3, so that 833 pictures per line can be calculated. On the other hand, the effective number of lines per frame is 575 lines. Therefore, the current TV standard in China is 575 x0. 7 = side TVL/PH. It should be noted that the vertical clarity of the TV is determined by the television system and is independent of the transmission of the television signal and the video bandwidth. The PAL TV standard specifies a line period of 64/zs. The effective line time is 52 2#s, the nominal video bandwidth is 6, and the 201024850 view. D. Because it must display multiple specifications, its color gamut performance capability is quite important. . For example, the gamut area ratio of a display device is 72/. The NTSC ‘ indicates that the display can display a range of colors for the seventy percent of the job. 72% NTSC is about the current standard for traditional television sets (CRT). The color area of the three primary colors mentioned above is obtained by using the known chromaticity coordinates of the three primary colors, and the area is as follows. The area is as follows. The individual side lengths of the three-color coordinates indicate that the area of the triangle is For NTSC. — 十 D + c/2 Δ = s(s - a)(s - b)(s - c)

The month of the month (j reproduces the color of the shirt) 'There are three different types of projection images: the team system, the PAL system and the SECAM system. The NTSC color TV system is the color TV refurbishment defined by the National Television Standards Committee of 952. , called orthogonal flat __. Hidden county line by line orthogonal 曰 ^ 1962 De Guanding color TV money standard, (four) make New _ style. SE_ for France to develop a color television broadcasting standard, called sequential transmission color The three types of electric interlaced brooms. The broom frequency is Cong Hz, the cycle pin s 娄 2 2 frequency is applied; when the TV signal is sent, the time of transmitting the image in each line is 11.8. /zs疋仃The back time of the broom is not transmitted. The number of sweeping cats per field is 625/2 312. 5仃, of which 25 rows are retweed and no image is transmitted, so each frame There are only 575 lines of images. The color model is used. The number of horizontal lines of the image should be divided by the number of black and white vertical bars divided by the aspect ratio of green. Which is the standard for calculating the level of clarity of this TV: (10)x2x frequency width (10)z) + aspect ratio coefficient has two uniqueness:: (4) view plane from 625 lines _ line group , That is a total entity. The actual ratio of the real 1 is 4 to 3, so it can be calculated that the number of effective lines of the image of θ, spear, and mother Φ 每 per line is 575 lines, so the current electricity in China is 4 〇 3 TVL/ ΡΗ. It should be noted that the vertical clarity of the TV is relatively small with the transmission of TV signals and video bandwidth. The hidden TV bar calibration cycle is -, effective line time _. plus, the nominal video bandwidth is 6 MHz ^ 7 201024850 The standard definition of the current TV standard is:

Level Definition (SDTV) = 52 (#s) x2 x6 (MHz) + (4/ 3) = 468 TVL/ PH As early as the 1980s, the International Radio Consultative Committee (CCIR) developed digital TV image digitization. The standard, called the CCIR 601 standard, is now changed to the ITU-R BT. 601 standard. This standard specifies the sampling frequency used when converting a color TV image into a digital image, the conversion relationship between two color spaces of RGB and YCbCr, and the like. CCIR specifies a common TV image sampling frequency for the NTSC, PAL, and SECAM systems. ColorSpace, also known as gamut space, represents the range of colors that a color image can represent. CMYK and RGB are two different color spaces, CMYK is the color space commonly used on output devices such as printers and printers; RGB is subdivided into: AdobeRGB,

Apple RGB, ColorMatch RGB, CIE RGB and sRGB and many different color spaces. Among them, Apple RGB is the default color space of Apple's Apple display, which is commonly used in flat design and print phototypes; CIE RGB is the color space standard set by international color organizations. Take

The two color spaces of Adobe RGB and sRGB are the most common. The relative gamut of the ice (3) is relatively narrow, and it can not meet the higher-end professional color requirements. Please refer to the figure, Ad〇beRGB*A, sRGB is B' . As a result, more and more monitors support the wider gamut of M〇be RGB. In fact, it is still not enough to support M〇be for sights, printers or presses. _ Seeing the display of Ad〇be RGB on the market, it is mainly achieved by the high color rendering of the foot LED. The same color filter with high color rendering (7) can achieve a high color of NTSC above 95%. Saturation' does not fully reflect the gamut range covered by *Ad〇beRGB, especially in the green part. In view of the above problems, the present invention provides a liquid crystal display device for improving navigation and a wider color gamut. SUMMARY OF THE INVENTION The main object of the present invention is to provide a liquid crystal display device, which improves the green light-emitting frequency of the light source of the backlight module to improve the color of the green color, thereby improving the liquid crystal display device 8 201024850 NTSC And conforms to the gamut specification of Adobe RGB. A secondary object of the present invention is to provide a liquid crystal display device. Since the color coordinate value of the green light source of the backlight module has been improved, the green light-emitting spectrum can penetrate the liquid crystal module to match the green light-emitting spectrum of the light source. A permeable color filter. In order to achieve the above object, the present invention discloses a liquid crystal display device, which provides a green light-emitting spectrum of a backlight module, and a color filter that matches a liquid crystal module that allows the green light-emitting spectrum to penetrate, wherein the green light is emitted. The spectrum includes a wavelength of 48〇~5〇〇nm of the first peak, a wavelength of 505~525im of a second peak, and a wavelength of 535~555nm of a third peak. Further, the color filter must be matched with the backlight module. The green light-emitting spectrum includes a plurality of black _ matrices, a plurality of red pixel regions, a plurality of green pixel regions, and a plurality of blue pixel regions in the color filter, wherein the green halogen regions are under a standard C light source. On the CIE leg chromaticity coordinates, the coordinates of the coffee are marked as Gy, and the value of the green color of the CIE 1931 is increased by $0. 635', which increases the specifications of the liquid crystal display device and the Adobe RGB conforming to the wide color gamut. [Embodiment] In order to make the t-reviewer have a better understanding and understanding of the structural features and the achieved effects of the present invention, it is better to use the better remuneration and the detailed system to explain the following: v due to liquid crystal display ϋThe liquid crystal molecule is the basic element. The liquid crystal of (4) is sandwiched between two glass plates that have undergone alignment treatment, and can be combined into a liquid crystal display device which is currently popular and often life-related. w "Intermediate molecules between SJ% and liquid red, not only have the liquid easy to escape from the outside, but also the optical directionality f of the crystal money, so can _ = the alignment of the liquid crystal changes to other directions , causing the light to penetrate the liquid crystal two plant changes, this is the electric field of the radiant radiance to produce the phenomenon of light modulation, the photoelectric effect of my liquid crystal. _This effect can be used to produce a variety of crystallographic displays = liquid crystal display, super twisted nematic liquid crystal display, and thin film transistor liquid crystal display = column type to twist the nematic liquid crystal display structure to illustrate the basic structure On the pulse w plant, in the _ tree: _=:= 9 201024850 two = grain alignment film 'When the nematic liquid crystal is poured into the gap between the upper and lower glass, the liquid: the child has the liquid age _ sex, shame Very ice _ grain direction system. In the proximity, position, 'the liquid crystal molecules are subjected to a large binding force, so the liquid crystal molecules which are divided by the upper and lower substrate grooves have a small binding force, and a twisted discharge is formed in the liquid crystal cell. _ Nematic liquid crystal molecules are conjugated. Touch, so this working mode is called twisting nematic. Further, a polarizing plate is attached to each of the outer sides of the upper and lower substrates. Furthermore, the step-by-step description of the display shows the principle of operation. Green, the light emitted by the white surface is passed through the first polarizing plate, and the wire is polarized to a linear aurora. In the drawing, the crystal is gradually twisted with the liquid crystal molecules. The direction advances, because the penetration planes of the upper and lower polarizing plates are in the same direction, that is, the transmission axes of the two polarizing plates are perpendicular to each other', and the two polarizing plates can pass through to form a bright state. When the voltage is applied, if the voltage is applied, the liquid crystal molecules tend to be parallel to the direction of the applied electric field. Therefore, the liquid crystal molecules are perpendicular to the surface of the glass substrate, and the polarized light is directly transmitted to the polarizing plate, and the light is absorbed by the polarizing plate. Unable to pass, forming a dark state. Therefore, using the appropriate driving voltage, the filament of the pair can be obtained. This display surface is the pattern of the bottom black word. Please refer to Figure 2 'In the LCD display system, the liquid crystal molecules are not like other self-illuminating sources (such as 0LED). Their own shirts will emit light, LQ) is used for Lai Zhen, so it must be matched with _P〇lanzer and Responsible for the modulation of light and dark, so a backlight module 10 is required for LCD applications. The back-discrimination group must provide sufficient brightness output, uniformity of intensity distribution, color uniformity, color rendering, etc., and is also an important design issue for the backlight module. The backlight module 10 includes at least one light source 12, which enters from the light source 12 (10)%)

Light Pipe (transmission rate 60%), through p〇iarizer (transmission rate 4%), Liquid Crys 95% transmission rate, color filter (penetration rate 3〇%), Αη8_Γ (penetration) Rate shame%) 'The final surface reflection (90% penetration), so from the light source to the outside of the screen, only 5% less than the light. The cold cathode tube of the light source 12 has a broad spectrum characteristic, but has a relative peak in the red, green, and blue regions, but the color gamut of the LCD is about 70% NTSC, so the color output is used as an LCD backlight. There is a fresh disk real performance color light film technology color liquid crystal display 201024850 == Γ get full color display function, that is, in color filter 3. The filter film of each of the three green and blue halogen regions 32, 34, and 36 and the plurality of black light sources 12' pass through the plurality of red, green, and sin=32, 34, and 36 of the color filter 30. 'Can be regarded as three new color light sources, this and the traditional mapping tube, = line:, green, blue three grab the same color performance by the external driving voltage in: change the light as the child __, and then change the text first Partial 15 from the transmission rate. It's like every light towel, three different electric ❹ 昼 =: light intensity of alizarin red, green, blue. As the polarization angle changes, the red, green, and blue sub-pixel regions 32, 34, and 36 of the different color film are mixed, and the pixels of different colors and brightness are formed by each pixel. The color continues to be the spectrum of the light source of the preferred embodiment of the present invention; as shown in the figure, the green spectrum provided by the backlight module light source of the present invention includes a first peak 咄It is longer than 480~5GGmn, and the wavelength of the second peak (10) is 5G5~525n. The wavelength is from 555mm to 555nm, and the first peak of the 波1〇 has the largest scale. The 1202 has the largest peak of 517nm and the third peak. (10) having a maximum of 545 coffee, the phosphor powder formulation in the lamp source of the present invention comprises - a phosphor powder selected from one of a group consisting of a 4.Ce, Tb and LaPCkEu or Any combination, and/or a 'then' is selected from the group consisting of Μ104. and face: EU, Mn, or the light source includes red phosphor powder as the peak of the wavelength at 58Qnm Above, it is selected from the group consisting of =:Eu, γ (P,v)〇4:Eu and χ_. (4—x)MgF2.(10) Among them - or any combination; and the peak containing the wavelength of the blue fluorescent powder is below 4, which is selected from the group consisting of BAM:Eu and Sn(P〇4)3C!:Eu One or any combination of the components: In the basic structure of the gold color filter, red, green, and blue fine color variegated regions are disposed between the glass substrates, and black is interposed between red, green, and blue. The matrix 33, the black matrix 33 has a contrast of 201024850 liters and prevents the color material mixing (10). Because "contrast" is the ratio of light transmittance when the light is in the dark state and the dark state. When the contrast value is larger, the image is clearer. Therefore, in order to make the contrast increase, when the applied voltage drives the liquid crystal. (ie dark state, light is occluded), the driven vegan - 疋 is very dark. Therefore, the black matrix 33 is effectively applied to prevent light leakage. At the same time, in order to prevent the color mixture between the red, green and blue materials, the red, green and blue halogen regions 32, 34, 36 of the color filter cannot be in contact with each other, so a colorless material must be disposed between the color materials. The opaque light-shielding film provides the effect of "avoiding light leakage" and "three primary colors mixed". In addition, the outermost coating-layer protective film '(10) protects the red, green and blue filters from unnecessary damage in the subsequent process, and also avoids the between their color film and the light-shielding layer. The difference is flattened. The white light transmittance of the red and green 'blue film' is about 25%. The green spectrum of the backlight module light source of the present invention is matched, and the ciE chromaticity Gy> 0.635 of the green halogen regions of the color sheet under the CIE standard c light source is preferably Gx=0. 26

Gy=0.642; and, please refer to FIG. 4, which is a spectrum diagram of a green pixel region of a color filter according to a preferred embodiment of the present invention; as shown in the figure, the green pixel region is worn. The half-height width of the transmissive spectrum is 90 nm each. ❹

Finally, FIG. 5 is a schematic diagram of a color coordinate of a liquid crystal display device according to a preferred embodiment of the present invention in CIE 1931; as shown, the use of the present invention includes the first spectrum and the first frequency β. And a light source of the backlight module of the second frequency to penetrate the liquid crystal module (and with the green color of the color filter that can penetrate the first spectrum, the second spectrum, and the third spectrum In the picture area, the x coordinate on the cIE 1931 chromaticity coordinate is Gx, and the y coordinate is Gy, where ^^(―丨.丨幻和计丨 and GxSO. l*Gy+0.15, and Gy^o.71; The red coordinates on the CIE 1931 chromaticity coordinates are Gx, where Rxg〇. 64; and the blue is on the CIE: 1931 chromaticity coordinates, the y coordinate is By,

Chromat Rx ---.. ---- icity Ry Gx Gy Bx By Value 0.660 0.329 0.209 0.711 0.146 0.056 Adobe 0.64 0.33 0.201 0.710 0. 15 0.06 12 201024850

RGB As can be seen from the above table and the drawings, the liquid crystal display device provided by the present invention can conform to the wide color gamut specification of Ad〇be RGB 'C is the liquid crystal display device of the present invention, to solve the high color rendering lamp of the prior art. Although the source can achieve high color saturation above NTSC, it does not fully display the gamut range of the cover covered by Ad〇be _, especially in the green part. : As mentioned above, the present invention is truly novel, progressive, and available to the industrial users. The special requirements for the special patents of the Chinese patents are undoubtedly unquestioned, and the invention patents are filed according to law. Give the right to benefit, to the feeling of prayer. The above-mentioned embodiments of the present invention are not limited to the meaning of the present invention, and the variations, structures, characteristics and fine materials of the present invention are available. And modifications are intended to be included within the scope of the invention. [Simple description of the map]

Fig. 1. AdQbe RGB and sRGB !2 of the system: Fig. 3: It is the structure of the pure-hybrid/infra-red device of the present invention, and the structure of the device is not intended. Spectrum of the light source; 吁 ΓΓ ΓΓ ( ( ( 10 10 10 10 10 10 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【 【昼素区34 Red 昼素区

Red pixel area Adobe RGB sRGB liquid crystal display device of the present invention

Claims (1)

201024850 X. Patent application scope: I·-槪晶装置, its towel (5) belongs to the device. The wavelength of the first peak is in the wavelength of ~5_m, the wavelength of the second peak is between 5G5~525nm and one. The wavelength of the third peak is between 535 and 555 nm. 2. If the read crystal is transposed as described in the application for the patent, the cap-peak system has a maximum peak of 489 nm. 3. If the application for the liquid detection device of the 丨 丨 item is applied, the second peak of the towel has the maximum peak value of 517 nm. ', 4. Please read the crystal age device as described in the special item The third peak of the towel has The largest peak at 545nm. 5, in the case of the special fiber _1, the liquid crystal display is thin, the towel crystal display device comprises at least one lamp official, the lamp tube comprises a first phosphor powder, which is selected from Lap〇 ^Ce, Tb and LaPOiEu one or any combination of the groups. The liquid crystal display device of claim 5, wherein the lamp tube comprises a first fluorescent uncle, which is selected from the group consisting of Zn2Si〇4:Mn and BAM:Eu, Mn. One or any combination. 7. The liquid crystal display device of the first embodiment of the present invention, wherein the liquid crystal display device comprises a color light-emitting sheet, the color filter comprising a plurality of black matrices, a plurality of red pixel regions, The complex green halogen region and the complex blue pixel region, wherein the green pixel regions have a penetration spectrum of 480 to 555 nm. 8. The liquid crystal display device of claim 7, wherein the green pixel region has a half-height width of a transmission spectrum of $90 nm. 9. A liquid crystal display device wherein the light of the liquid crystal display device is included in the cie 1931 chromaticity coordinate, the X coordinate is Gx, and the y coordinate is Gy, wherein Gxg(-U3)*Gy+l and Gx$0.1*Gy+ 0.15, and Gyg〇.71. 10. The liquid crystal display device of claim 9, wherein the liquid crystal display device is a color 3; a color filter comprising a plurality of black matrices, a plurality of red pixel regions, and a plurality of green pixels The region and the complex blue halogen region, wherein the green pixels region is Cy 14 201024850 1931, the y coordinate on the chromaticity coordinate is Gy, wherein Gy g is 0.635. 11. The liquid crystal display device of claim 10, wherein the green pixel region has a half-height wave width S90 nm. 12. The liquid crystal display device of claim 9, wherein the liquid crystal display device comprises at least one lamp tube, the lamp tube comprising a first phosphor powder selected from the group consisting of LaP04: Ce, Tb and LaP04: One of or a combination of groups of Eu. 13. The liquid crystal display device of claim 12, wherein the lamp tube comprises a second phosphor selected from the group consisting of Zn2Si04:Mn and BAM:Eu, Mn. Or any combination.