TWI463192B - Color filter - Google Patents
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本發明涉及一種彩色濾光片，尤其涉及一種具有改進的圖元結構的彩色濾光片。 The present invention relates to a color filter, and more particularly to a color filter having an improved primitive structure.
彩色濾光片(Color Filter)廣泛地應用於攝像技術中。外界的光學影像訊號由鏡頭攝入後，需要經過彩色濾光片的過濾，才能形成供影像感測器接收的彩色影像。顯然，彩色濾光片的光學性能直接影響相機的整體性能。 Color Filters are widely used in camera technology. After the external optical image signal is taken in by the lens, it needs to be filtered by the color filter to form a color image for the image sensor to receive. Obviously, the optical performance of a color filter directly affects the overall performance of the camera.
請參閱圖1及圖2，一習知的彩色濾光片100一般包括一基板10、一遮光部11、一濾光部12及一電極層13。該基板10為採用玻璃製成的透明光滑平板。該遮光部11形成於該基板10上，其為採用黑色樹脂膜或鉻膜等遮光材料製成的具有多個微細網格的矩陣結構，覆蓋於該基板10的部分表面上，用於防止圖元間的漏光和不必要的反射。該濾光部12由具有紅、綠、藍三原色透光性的彩色濾光膜層構成。該等彩色濾光膜層可採用彩色的樹脂等材料製成，其填充於基板10表面上未被遮光部11覆蓋的位置，亦即佈設於上述遮光部11具有的矩陣結構的網格中，從而被劃分為多個圖元120。請進一步參閱圖2，於習知技術中，濾光部12中的單個圖元120一般是一個由遮光部11劃分出來的正方形區域，該圖元120內部又進一步由遮光部11劃分為四個面積相等的正方形次圖元121 、122、123、124。其中，沿對角線排布的兩個次圖元121、123中分別設置有紅色(red，圖中縮寫為R)及藍色(blue，圖中縮寫為B)的彩色濾光膜層，而另兩個次圖元122、124中均設有綠色(green，圖中縮寫為G)的彩色濾光膜層。該電極層13為採用銦錫金屬氧化物(Indium Tin Oxides,ITO)製成的透明導電薄膜，其通過濺鍍等方式形成於該遮光部11及該濾光部12表面上將遮光部11及濾光部12完全覆蓋，從而將遮光部11及濾光部12封裝於該電極層13與基板10之間。 Referring to FIG. 1 and FIG. 2 , a conventional color filter 100 generally includes a substrate 10 , a light shielding portion 11 , a filter portion 12 , and an electrode layer 13 . The substrate 10 is a transparent smooth plate made of glass. The light shielding portion 11 is formed on the substrate 10, and is a matrix structure having a plurality of fine meshes made of a light shielding material such as a black resin film or a chromium film, covering a part of the surface of the substrate 10 for preventing the image. Light leakage and unnecessary reflection between the elements. The filter portion 12 is composed of a color filter layer having a light transmittance of three primary colors of red, green, and blue. The color filter film layer may be made of a material such as a colored resin, and is filled in a position on the surface of the substrate 10 that is not covered by the light shielding portion 11 , that is, in a grid of the matrix structure of the light shielding portion 11 . It is thus divided into a plurality of primitives 120. Referring to FIG. 2, in the prior art, the single primitive 120 in the filter portion 12 is generally a square region divided by the light shielding portion 11, and the interior of the primitive 120 is further divided into four by the light shielding portion 11. Equal square sub-element 121 , 122, 123, 124. Wherein, the color filter layers of red (red, abbreviated as R) and blue (blue, abbreviated as B) are respectively disposed in the two secondary elements 121 and 123 arranged diagonally. The other two sub-elements 122 and 124 are provided with a color filter layer of green (green, abbreviated as G in the figure). The electrode layer 13 is a transparent conductive film made of Indium Tin Oxides (ITO), which is formed on the surface of the light shielding portion 11 and the filter portion 12 by sputtering or the like, and the light shielding portion 11 and The filter portion 12 is completely covered, and the light shielding portion 11 and the filter portion 12 are sealed between the electrode layer 13 and the substrate 10.
該彩色濾光片100被安裝於一攝像裝置例如相機(圖未示)上進行使用時，大多是安裝於相機的鏡頭(圖未示)和影像感測器(圖未示)之間，基板10置於鏡頭所處一側，電極層13置於影像感測器所處一側。當鏡頭攝入光學影像訊號時，該光學影像訊號通過基板10到達該濾光部12，經過該濾光部12的過濾作用即可形成彩色影像。具體地，上述光學影像訊號透過每個圖元120中的四個次圖元121、122、123、124時，可以被分別過濾而得到紅、綠、藍三原色的單色出射光線，該三種單色出射光線的比例由透過該圖元120的光線的具體顏色確定。上述三種單色出射光線依照不同比例混合於一起從該圖元120上射出，即可使該圖元120整體上呈現出各種不同的色彩。根據透過每個圖元120的光線的具體顏色，多個圖元120可以分別顯示不同的色彩，組合成與被拍攝影像顏色相符的彩色光學影像訊號。該彩色光學影像訊號被影像感測器接收，即可被轉換為可以傳輸及存儲的電子影像訊號。該電極層13則可為影像感測器的光/電轉換工作提供必要的輔助電場。 When the color filter 100 is mounted on an imaging device such as a camera (not shown), it is mostly mounted between a lens (not shown) of the camera and an image sensor (not shown). 10 is placed on the side where the lens is located, and the electrode layer 13 is placed on the side where the image sensor is located. When the lens ingests the optical image signal, the optical image signal reaches the filter portion 12 through the substrate 10, and the color filter is formed by the filtering action of the filter portion 12. Specifically, when the optical image signals are transmitted through the four sub-pictures 121, 122, 123, and 124 in each of the primitives 120, they may be separately filtered to obtain monochromatic outgoing rays of three primary colors of red, green, and blue. The proportion of the emitted light is determined by the specific color of the light transmitted through the primitive 120. The three kinds of monochromatic emergent rays are mixed and emitted from the primitive 120 in different proportions, so that the primitive 120 can exhibit various colors as a whole. Depending on the specific color of the light passing through each primitive 120, the plurality of primitives 120 can respectively display different colors and combine into a color optical image signal that matches the color of the captured image. The color optical image signal is received by the image sensor and can be converted into an electronic image signal that can be transmitted and stored. The electrode layer 13 can provide the necessary auxiliary electric field for the optical/electrical conversion operation of the image sensor.
然而，該習知彩色濾光片100雖然可以形成彩色影像，但其每個 圖元120中的次圖元121、122、123、124色彩種類較少，僅有紅綠藍三種，於實際應用中可能導致圖元120的色域不夠寬廣。另外，由於每個次圖元121/122/123/124僅允許一種顏色的光線通過，因此該習知彩色濾光片100對鏡頭攝入的光學影像訊號的能量利用率較低，可能導致於影像感測器上形成的影像亮度不足。 However, the conventional color filter 100 can form a color image, but each of them The secondary primitives 121, 122, 123, and 124 in the primitive 120 have fewer color types, and are only red, green, and blue. In practical applications, the color gamut of the primitive 120 may not be broad enough. In addition, since each sub-element 121/122/123/124 allows only one color of light to pass through, the conventional color filter 100 has low energy utilization rate for the optical image signal taken by the lens, which may result in The image formed on the image sensor is not bright enough.
有鑒於此，有必要提供一種可獲得更寬廣的色域及更高的光源能量利用率的彩色濾光片。 In view of this, it is necessary to provide a color filter that can obtain a wider color gamut and higher energy utilization of the light source.
一種彩色濾光片，包括一用於使光學影像訊號透過而形成彩色影像的濾光部，該濾光部包括多個用以形成彩色影像的圖元，其中每個圖元包括八個次圖元，該八個次圖元共具有七種不同的顏色，透過該八個次圖元形成的七種顏色的出射光線混合於一起從該圖元上射出，使該圖元整體上呈現彩色。 A color filter includes a filter for transmitting an optical image signal to form a color image, the filter portion comprising a plurality of primitives for forming a color image, wherein each primitive includes eight sub-pictures The eight sub-pictures have a total of seven different colors, and the outgoing rays of the seven colors formed by the eight sub-pictures are mixed and ejected from the picture element, so that the picture element is colored overall.
與習知技術相比，本發明提供的彩色濾光片的每個圖元都含有共具有七種不同顏色的八個次圖元，與每個圖元僅含有三種不同顏色的四個圖元的習知彩色濾光片相比，光學影像訊號透過該彩色濾光片可形成色彩種類更多的出射光線，組合於一起可以獲得更加寬廣的色域。另外，該彩色濾光片還可對每種單色光都提供比習知彩色濾光片更大的透光面積，對光學影像訊號的能量利用率較高。 Compared with the prior art, the color filter provided by the present invention contains eight sub-primitives having seven different colors in total, and each primitive contains only four primitives of three different colors. Compared with the conventional color filter, the optical image signal can form a variety of outgoing light rays through the color filter, and together, a wider color gamut can be obtained. In addition, the color filter can provide a larger light transmission area for each monochromatic light than the conventional color filter, and has higher energy utilization rate for the optical image signal.
200‧‧‧彩色濾光片 200‧‧‧Color filters
20‧‧‧基板 20‧‧‧Substrate
21‧‧‧遮光部 21‧‧‧Lighting Department
220‧‧‧圖元 220‧‧‧ graphics
221、222、223、224、225、226、227、228‧‧‧次圖元 221, 222, 223, 224, 225, 226, 227, 228 ‧ ‧ primitives
23‧‧‧電極層 23‧‧‧Electrical layer
100‧‧‧彩色濾光片 100‧‧‧Color filters
10‧‧‧基板 10‧‧‧Substrate
11‧‧‧遮光部 11‧‧‧Lighting Department
120‧‧‧圖元 120‧‧‧ graphic elements
121、122、123、124‧‧‧次圖元 121, 122, 123, 124‧‧
13‧‧‧電極層 13‧‧‧Electrode layer
圖1為習知彩色濾光片的截面結構示意圖。 1 is a schematic cross-sectional view of a conventional color filter.
圖2為習知彩色濾光片的遮光部及濾光部的結構示意圖。 2 is a schematic view showing the structure of a light shielding portion and a filter portion of a conventional color filter.
圖3為本發明彩色濾光片較佳實施例的截面結構示意圖。 3 is a schematic cross-sectional view showing a preferred embodiment of a color filter of the present invention.
圖4為本發明彩色濾光片較佳實施例的遮光部及濾光部的結構示意圖。 4 is a schematic structural view of a light shielding portion and a filter portion of a preferred embodiment of the color filter of the present invention.
請參閱圖3及圖4，本發明的較佳實施例為一彩色濾光片200，該彩色濾光片200用於數碼相機等攝像裝置中，其包括一基板20、一遮光部21、一濾光部22及一電極層23。 Referring to FIG. 3 and FIG. 4, a preferred embodiment of the present invention is a color filter 200. The color filter 200 is used in a camera device such as a digital camera, and includes a substrate 20, a light shielding portion 21, and a The filter portion 22 and an electrode layer 23.
該基板20為採用玻璃製成的透明的光滑平板，該彩色濾光片200的其他部分均堆疊形成於該基板20上。該遮光部21為採用黑色樹脂膜或鉻膜等遮光材料製成的網狀結構，用於防止圖元間的漏光和不必要的反射。該遮光部21具有多個微細的正方形網格(圖未標)，其中每個正方形網格又被遮光部21進一步分隔成八個大小相等的等腰直角三角形次網格(圖未標)。 The substrate 20 is a transparent smooth plate made of glass, and other portions of the color filter 200 are stacked on the substrate 20. The light shielding portion 21 is a mesh structure made of a light shielding material such as a black resin film or a chromium film, and is used to prevent light leakage and unnecessary reflection between the elements. The opaque portion 21 has a plurality of fine square grids (not labeled), wherein each square grid is further divided by the opaque portion 21 into eight equal-sized isosceles right-angled triangle sub-grids (not labeled).
該濾光部22由具有紅(red，圖中縮寫為R)、綠(green，圖中縮寫為G)、藍(blue，圖中縮寫為B)、黃(yellow，圖中縮寫為Y)、青(cyan，圖中縮寫為C)、紫(magenta，圖中縮寫為M)、白(white，圖中縮寫為W)七種色彩的透光性的彩色濾光膜層構成。該彩色濾光膜層可採用彩色的樹脂等材料製成(其中白色濾光膜層採用無色透明材料製造即可)，其填充於基板20表面上未被遮光部21覆蓋的位置，亦即佈設於上述遮光部21的網格中，從而被劃分為影像顯示所需的多個圖元220。請進一步參閱圖4，於遮光部21每個正方形網格的八個次網格中，有六個次網格內分別設置有該濾光部22的紅色、藍色、黃色、青色、紫色及白色的彩色濾光膜層，剩下兩個次網格中均設置綠色濾光膜層，從而形成八個面積大 致相等的次圖元221、222、223、224、225、226、227、228。當光學影像訊號透過該圖元220的八個次圖元221、222、223、224、225、226、227、228，一共可以形成七種顏色的出射光線。上述七種單色出射光線依照不同比例混合於一起，即可使該圖元220整體上呈現出各種不同的色彩。 The filter portion 22 has red (red, abbreviated as R in the figure), green (green, abbreviated as G in the figure), blue (blue, abbreviated as B in the figure), and yellow (yellow in the figure). , cyan (cyan, abbreviated as C in the figure), purple (magenta, abbreviated as M in the figure), white (white, abbreviated as W in the figure) are composed of seven color translucent color filter layers. The color filter layer may be made of a material such as a colored resin (wherein the white filter layer is made of a colorless transparent material), and is filled in a position on the surface of the substrate 20 that is not covered by the light shielding portion 21, that is, the layout. The grid of the light shielding portion 21 is divided into a plurality of primitives 220 required for image display. 4, in the eight sub-grids of each square grid of the shading portion 21, the red, blue, yellow, cyan, purple, and purple portions of the filter portion 22 are respectively disposed in the six sub-grids. White color filter layer, green filter layer is set in the remaining two sub-grids, forming eight large areas Equivalent secondary primitives 221, 222, 223, 224, 225, 226, 227, 228. When the optical image signal passes through the eight sub-pictures 221, 222, 223, 224, 225, 226, 227, 228 of the primitive 220, a total of seven colors of outgoing light can be formed. The above seven kinds of monochromatic outgoing rays are mixed together according to different ratios, so that the primitive 220 as a whole exhibits various colors.
該電極層23為採用銦錫金屬氧化物(Indium Tin Oxides,ITO)製成的透明導電薄膜，其通過濺鍍等方式形成於該遮光部21及該濾光部22表面上將遮光部21及濾光部22完全覆蓋，從而將遮光部21及濾光部22封裝於該電極層23與基板20之間。 The electrode layer 23 is a transparent conductive film made of Indium Tin Oxides (ITO), which is formed on the surface of the light shielding portion 21 and the filter portion 22 by sputtering or the like, and the light shielding portion 21 and The filter portion 22 is completely covered, and the light shielding portion 21 and the filter portion 22 are sealed between the electrode layer 23 and the substrate 20.
該彩色濾光片200被安裝於一習知攝像裝置例如相機(圖未示)上進行使用時，其裝設於相機的鏡頭(圖未示)和影像感測器(圖未示)之間，基板20置於鏡頭所處一側，電極層23置於影像感測器所處一側。當鏡頭攝入光學影像訊號時，該光學影像訊號通過基板20到達該濾光部22，經過該濾光部22的過濾作用即可形成彩色影像。具體地，上述光學影像訊號透過每個圖元220中的八個次圖元221、222、223、224、225、226、227、228時，可以被分別過濾而得到紅色、綠色、藍色、黃色、青色、紫色及白色共七種顏色的出射光線，該七種單色出射光線的比例由透過該圖元220的光線的具體顏色確定。上述七種單色出射光線依照不同比例混合於一起從該圖元220上射出，即可使該圖元220整體上呈現出各種不同的色彩。根據透過每個圖元220的光線的具體顏色，多個圖元220可以分別顯示不同的色彩，組合成與被拍攝影像顏色相符的彩色光學影像訊號。該彩色光學影像訊號被影像感測器接收，即可被轉換為可以傳輸及存儲的電子影像訊號。該電極層23則 可為影像感測器的光/電轉換工作提供必要的輔助電場。 When the color filter 200 is mounted on a conventional imaging device such as a camera (not shown), it is mounted between a lens (not shown) of the camera and an image sensor (not shown). The substrate 20 is placed on the side where the lens is located, and the electrode layer 23 is placed on the side where the image sensor is located. When the lens takes in the optical image signal, the optical image signal reaches the filter portion 22 through the substrate 20, and the color filter is formed by the filtering action of the filter portion 22. Specifically, when the optical image signals are transmitted through the eight secondary elements 221, 222, 223, 224, 225, 226, 227, and 228 in each primitive 220, they may be separately filtered to obtain red, green, and blue colors. Yellow, cyan, purple, and white have a total of seven colors of outgoing light, and the ratio of the seven monochromatic outgoing rays is determined by the specific color of the light transmitted through the primitive 220. The above-mentioned seven kinds of monochromatic emergent rays are mixed and emitted from the primitive 220 in different proportions, so that the primitive 220 as a whole exhibits various colors. Depending on the specific color of the light passing through each primitive 220, the plurality of primitives 220 can respectively display different colors and combine into a color optical image signal that matches the color of the captured image. The color optical image signal is received by the image sensor and can be converted into an electronic image signal that can be transmitted and stored. The electrode layer 23 is It can provide the necessary auxiliary electric field for the optical/electrical conversion of the image sensor.
如前所述，該彩色濾光片200的每個圖元220都含有八個次圖元221、222、223、224、225、226、227、228，一共可形成紅色、綠色、藍色、黃色、青色、紫色及白色七種顏色的出射光線。而上述習知彩色濾光片100中，每個圖元120僅含有四個次圖元121、122、123、124，且只能形成紅色、綠色、藍色三種顏色的出射光線。顯然，與習知技術相比，該彩色濾光片200可提供的出射光線的色彩種類較多，混合於一起可以使其獲得比習知彩色濾光片100更加寬廣的色域。 As described above, each of the primitives 220 of the color filter 200 has eight sub-pictures 221, 222, 223, 224, 225, 226, 227, 228, which can form a total of red, green, blue, The outgoing light of seven colors of yellow, cyan, purple and white. In the above conventional color filter 100, each primitive 120 contains only four sub-pictures 121, 122, 123, and 124, and can only form outgoing light of three colors of red, green, and blue. Obviously, compared with the prior art, the color filter 200 can provide a variety of colors of the emitted light, and mixing them together can obtain a wider color gamut than the conventional color filter 100.
另外，於上述習知彩色濾光片100中，其每個圖元120含有的四個次圖元121、122、123、124面積大致相等，各占複合圖元總透光面積的約1/4。由於光學影像訊號由紅色、綠色、藍色三種基本單色光組成，使用中，光學影像訊號中含有的紅色光只能透過上述次圖元121，綠色光只能透過上述次圖元122及124，藍色光只能透過上述次圖元123。因此，紅色光和藍色光都只能透過每個圖元120的總透光面積的約1/4，綠色光只能透過每個圖元120的總透光面積的約1/2。這樣可能導致該習知彩色濾光片100的透光性能較差，對光學影像訊號的能量利用率較低。 In addition, in the conventional color filter 100 described above, the four sub-pictures 121, 122, 123, and 124 included in each of the primitive elements 120 have substantially the same area, each occupying about 1/ of the total light transmission area of the composite picture element. 4. Since the optical image signal is composed of three basic monochromatic lights of red, green and blue, in use, the red light contained in the optical image signal can only pass through the above-mentioned secondary element 121, and the green light can only pass through the above secondary elements 122 and 124. The blue light can only pass through the above secondary element 123. Therefore, both red and blue light can only pass through about 1/4 of the total light transmission area of each primitive 120, and green light can only pass through about 1/2 of the total light transmission area of each primitive 120. This may result in poor light transmission performance of the conventional color filter 100 and low energy utilization rate for optical image signals.
而於本發明提供的彩色濾光片200中，每個圖元220的八個次圖元221、222、223、224、225、226、227、228各占該圖元220的總透光面積的約1/8。由於黃光由紅光與綠光混合形成，青光由綠光與藍光混合形成，紫光由藍光與紅光混合形成，白光由紅光、綠光、藍光三者混合形成，所以上述的黃色次圖元223允許紅光與綠光透過，青色次圖元224允許綠光與藍光透過，紫色次圖元 225允許藍光與紅光透過，白色次圖元226允許紅光、綠光與藍光均透過。當光學影像訊號到達該彩色濾光片200的任一圖元220時，該圖元220中的紅色次圖元221、黃色次圖元223、紫色次圖元225、白色次圖元226均允許紅光透過，即紅色光可以透過該圖元220的總透光面積的約1/2。類似地，綠、黃、青、白四色的次圖元227、228、223、224、226均允許綠光透過，即綠色光可以透過該圖元220的總透光面積的約5/8。藍、青、紫、白三色的次圖元222、224、225、226均允許藍光透過，即藍色光可以透過該圖元220的總透光面積的約1/2。由此可見，於該彩色濾光片200的每個圖元220的總透光面積與習知彩色濾光片100的每個圖元120的總透光面積相等的前提下，該彩色濾光片200對於每種單色光都可提供比習知彩色濾光片100更大的透光面積，具有更好的透光性能，對光學影像訊號的能量利用率較高。 In the color filter 200 provided by the present invention, the eight sub-pictures 221, 222, 223, 224, 225, 226, 227, and 228 of each picture element 220 each occupy the total light transmission area of the picture element 220. About 1/8. Since yellow light is formed by mixing red light and green light, cyan light is formed by mixing green light and blue light, purple light is formed by mixing blue light and red light, and white light is formed by mixing red light, green light and blue light, so the above yellow times are formed. The primitive 223 allows red and green light to pass through, and the cyan secondary element 224 allows green and blue light to pass through, and the purple secondary primitive 225 allows blue and red light to pass through, and white sub-picture 226 allows red, green, and blue light to pass through. When the optical image signal reaches any of the primitives 220 of the color filter 200, the red secondary primitive 221, the yellow secondary primitive 223, the purple secondary primitive 225, and the white secondary primitive 226 in the primitive 220 are allowed. The red light is transmitted, that is, the red light can pass through about 1/2 of the total light transmission area of the primitive 220. Similarly, the secondary elements 227, 228, 223, 224, and 226 of the green, yellow, cyan, and white colors all allow green light to pass through, that is, the green light can pass through about 5/8 of the total light transmission area of the primitive 220. . The sub-pictures 222, 224, 225, and 226 of blue, cyan, purple, and white all allow blue light to pass through, that is, blue light can pass through about 1/2 of the total light transmission area of the picture element 220. It can be seen that the color filter is provided on the premise that the total light transmission area of each of the primitives 220 of the color filter 200 is equal to the total light transmission area of each of the primitives 120 of the conventional color filter 100. The sheet 200 can provide a larger light transmissive area than the conventional color filter 100 for each monochromatic light, has better light transmission performance, and has higher energy utilization rate for optical image signals.
可以理解，遮光部21的網格也可製作成其他形狀，對應地，每個圖元220及其中包含的八個次圖元221、222、223、224、225、226、227、228也可以是其他形狀，只要確保每個圖元220均包含八個次圖元221、222、223、224、225、226、227、228，光學影像訊號透過該圖元220一共可形成上述七種顏色的出射光線即可。 It can be understood that the grid of the light shielding portion 21 can also be made into other shapes. Correspondingly, each primitive 220 and the eight secondary primitives 221, 222, 223, 224, 225, 226, 227, 228 included therein can also be Other shapes, as long as each of the primitives 220 includes eight secondary elements 221, 222, 223, 224, 225, 226, 227, 228, and the optical image signals can form the above seven colors through the primitives 220. Light can be emitted.
綜上所述，本發明符合發明專利要件，爰依法提出專利申請。惟，以上所述者僅為本發明之較佳實施例，本發明之範圍並不以上述實施例為限，舉凡熟悉本案技藝之人士援依本發明之精神所作之等效修飾或變化，皆應涵蓋於以下申請專利範圍內。 In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in light of the spirit of the present invention are It should be covered by the following patent application.
21‧‧‧遮光部 21‧‧‧Lighting Department
220‧‧‧圖元 220‧‧‧ graphics
221、222、223、224、225、226、227、228‧‧‧次圖元 221, 222, 223, 224, 225, 226, 227, 228 ‧ ‧ primitives
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5013138A (en) * | 1987-01-27 | 1991-05-07 | Agfa-Gevaert N.V. | Liquid crystal display |
| US6361905B2 (en) * | 1997-09-26 | 2002-03-26 | Flex Products, Inc. | Color filters for displays |
| CN201251657Y (en) * | 2004-04-09 | 2009-06-03 | 三星电子株式会社 | High-brightness displayer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5013138A (en) * | 1987-01-27 | 1991-05-07 | Agfa-Gevaert N.V. | Liquid crystal display |
| US6361905B2 (en) * | 1997-09-26 | 2002-03-26 | Flex Products, Inc. | Color filters for displays |
| CN201251657Y (en) * | 2004-04-09 | 2009-06-03 | 三星电子株式会社 | High-brightness displayer |
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