CN2750342Y

CN2750342Y - Color filter and liquid crystal display device

Info

Publication number: CN2750342Y
Application number: CN 200420095701
Authority: CN
Inventors: 吴美玲; 叶圣修; 彭家鹏
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Innolux Corp
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Innolux Corp
Priority date: 2004-11-20
Filing date: 2004-11-20
Publication date: 2006-01-04
Anticipated expiration: 2014-11-20

Abstract

The utility model relates to a color filter which comprises a plurality of picture elements. Each of the picture elements comprises three picture sub-elements, a red one, a green one and a blue one, and each picture sub-element comprises a reflecting region and a penetration region, wherein the reflecting regions and the penetration regions of two adjacent picture sub-elements of the picture elements are arranged in the mode of staggered arrangement. The utility model also relates to a liquid crystal display device which adopts the color filter, which can avoid generating strip-shaped color difference under the mode of total reflection or full penetration display. In this way, the display color difference can be improved and the consistency of color display of images can also be improved.

Description

Colored filter and liquid crystal indicator

[technical field]

The utility model relates to a kind of colored filter and uses the liquid crystal indicator of this colored filter, refers in particular to a kind of liquid crystal indicator that is applied in the colored filter of semi-penetrating semi-reflecting type liquid crystal displaying device and uses this colored filter.

[background technology]

Divide from the mode of utilizing to incident light, at present liquid crystal indicator can be divided into three kinds of penetration, reflective and semi-penetration, semi-reflectives.Wherein, semi-penetrating semi-reflecting type liquid crystal displaying device possesses the advantage of penetration and reflective LCD device simultaneously.When semi-penetrating semi-reflecting type liquid crystal displaying device uses under the stronger environment of outdoor environment light, need not light backlight, dependence is reflected external environment light and light source is provided, and power consumption is low than the penetration display device; When the indoor or outdoors surround lighting is more weak, then light backlight, utilize the light of backlight and extraneous light that light source is provided simultaneously, compare reflective LCD device higher brightness can be provided.Because semi-penetrating semi-reflecting type liquid crystal displaying device is to utilize reflected light simultaneously and penetrate light, so its requirement to colored filter also has different with penetration or reflective LCD device.

Fig. 1 is a kind of floor map of colored filter of prior art semi-penetrating semi-reflecting type liquid crystal displaying device.This colored filter 1 comprises the picture element 10,11 of a plurality of orderly arrangements, and each picture element 10,11 comprises redness, green, blue three sub-picture elements respectively, and wherein, Fig. 1 shows arranging of wherein any two adjacent picture elements 10,11.

Picture element 10 comprises redness, green, blue three sub-picture elements, indicates with 101,102,103 respectively.Each sub-picture element 101,102,103 comprises an echo area R and a penetrating region T respectively.The set-up mode of echo area R and penetrating region T is identical with picture element 10 in the picture element 11.Wherein, when the display device desire realized the demonstration of a picture, external environment light needed twice echo area R by colored filter 1 successively, and the penetrating region T that the light of backlight only need be by colored filter 1 once.

Owing to the different and equal problem of opticpath of light source that penetrating region T and echo area R are utilized, the color representation in two districts will produce difference (aberration), promptly seems inconsistent in brightness, contrast and color saturation.And in the colored filter 1, echo area R in each picture element 10,11 and each the sub-picture element 101,102,103 thereof all is arranged on the same side, and the also unified relative side that is arranged on echo area R of penetrating region T, thereby, the prior art semi-penetrating semi-reflecting type liquid crystal displaying device that adopts this colored filter 1 is in total reflection or penetrate the strip heterochromia that can produce under the display mode as shown in Figure 2 entirely, influence the consistance of display device color demonstration.

[utility model content]

For the semi-penetrating semi-reflecting type liquid crystal displaying device that overcomes prior art in total reflection or penetrate the problem that can produce the strip heterochromia under the display mode entirely, the utility model provides a kind of colored filter that shows aberration that improves.

For realizing the technical problems to be solved in the utility model, the utility model provides a kind of colored filter, it comprises a plurality of picture elements, each picture element comprises the sub-picture element of red, green, blue three looks, each sub-picture element comprises echo area and penetrating region, wherein, the echo area of two adjacent sub-picture elements and penetrating region are to be staggered in each picture element.

The utility model also provides a kind of liquid crystal indicator of this colored filter of application.

Compared to prior art, the penetrating region of the utility model colored filter and echo area are to be crisscross arranged at homonymy not, thereby, the liquid crystal indicator of using this colored filter is in total reflection or penetrate entirely and can avoid producing the strip heterochromia under the display mode, thereby can improve the demonstration aberration, improve the consistance that image color shows.

[description of drawings]

Fig. 1 is the floor map of the colored filter of prior art semi-penetrating semi-reflecting type liquid crystal displaying device.

Fig. 2 is that the prior art semi-penetrating semi-reflecting type liquid crystal displaying device is in total reflection or penetrate color display effect synoptic diagram under the display mode entirely.

Fig. 3 is the part floor map of the utility model colored filter first embodiment.

Fig. 4 to Fig. 8 is the diagrammatic cross-section of any one sub-picture element in the colored filter shown in Figure 3.

Fig. 9 is the floor map of the utility model colored filter second embodiment.

Figure 10 is the floor map of the utility model colored filter the 3rd embodiment.

Figure 11 is the diagrammatic cross-section that the utility model is used the liquid crystal indicator of this colored filter.

Figure 12 is that the utility model liquid crystal indicator is in total reflection or penetrate color display effect synoptic diagram under the display mode entirely.

[embodiment]

The utility model colored filter first embodiment such as Fig. 3 are to shown in Figure 8.Wherein, Fig. 3 is the part floor map of colored filter 100, and Fig. 4 to Fig. 8 is the diagrammatic cross-section of any one sub-picture element in the colored filter 100, and multiple structure can be adopted in its penetrating region 130 and echo area 140.

Fig. 4 is the diagrammatic cross-section of penetrating region 130 and echo area 140 first embodiments in the colored filter 100.Colored filter 100 is arranged on the transparent glass substrate (not indicating), wherein, and this penetrating region 130 and the identical thickness of echo area 140 tools, and be to adopt identical colorized optical filtering sheet material to make.

Fig. 5 is the diagrammatic cross-section of penetrating region 130 and echo area 140 second embodiments in the colored filter 100.The penetrating region 130 of this colored filter 100 adopts identical colorized optical filtering sheet material to make with echo area 140, and wherein these echo area 140 thickness are thin than penetrating region 130.

Fig. 6 and Fig. 7 are the diagrammatic cross-sections of penetrating region 130 and echo area 140 the 3rd embodiment in the colored filter 100.The penetrating region 130 of this colored filter 100 adopts identical colorized optical filtering sheet material to make with echo area 140, wherein the thickness of this echo area 140 is thin than penetrating region 130, and echo area 140 increases a hyaline layer (OverCoat) 150 to keep identical height with this penetrating region 130.

Fig. 8 is the diagrammatic cross-section of penetrating region 130 and echo area 140 the 4th embodiment in the colored filter 100.The penetrating region 130 of this colored filter 100 adopts identical colorized optical filtering sheet material to make with echo area 140, and wherein, this echo area 140 partly is provided with hole (Holes) or groove (Recess) structure.

First kind of arrangement mode of penetrating region 130 and echo area 140 as shown in Figure 3 in this colored filter 100.This colored filter 100 comprises the picture element of a plurality of orderly arrangements, each picture element comprises redness, green, blue three sub-picture elements respectively, Fig. 3 shows wherein two adjacent picture elements 110,120, and the echo area is identical with the arrangement mode of echo area, penetrating region and penetrating region in these two the adjacent picture elements 110,120.

Wherein, this picture element 110 comprises redness, green, blue three sub-picture elements, indicates with 111,112,113 respectively, comprises a penetrating region 130 and echo area 140 respectively in each sub-picture element 111,112,113.That is, picture element 110 comprises three penetrating regions 130 and three echo areas 140 altogether.Wherein, in two adjacent sub-picture elements 111 and 112,112 and 113, wherein penetrating region 130 and echo area 140 are arranged on not homonymy.With

sub-picture element

111 and 112 is example, and wherein penetrating region 130 and echo area 140 all are to be the diagonal angle setting.The arrangement mode of penetrating region 130 and echo area 140 is identical with

sub-picture element

111 and 112 in the sub-picture element 112 and 113.Thereby, three penetrating regions, 130 V-shaped arrangements in this picture element 110, echo area 140 is reverse V-shaped arrangement.

This picture element 120 also comprises redness, green, blue three sub-picture elements, indicates with 121,122,123 respectively, and it also comprises three penetrating regions 130 and three echo areas 140.The V-shaped arrangement of arranging of three echo areas 140 in the picture element 120, it is opposite with the reverse V-shaped arrangement of three echo areas 140 in the picture element 110.Arranging of three penetrating regions 130 is reverse V-shaped arrangement in the picture element 120, and it is opposite with the V-type arrangement of three penetrating regions 130 in the picture element 110.

Fig. 9 is the floor map of second kind of embodiment of the utility model colored filter.Colored filter 200 is with colored filter 100 differences: the arrangement mode of echo area and echo area, penetrating region and penetrating region is identical in the picture element 210,220 of wherein any two adjacent settings, promptly, three V-shaped arrangements of penetrating region in the picture element 210, the echo area is reverse V-shaped arrangement; The also V-shaped arrangement of three penetrating regions in the picture element 220, the echo area also is reverse V-shaped arrangement.

Figure 10 is the floor map of the third embodiment of the utility model colored filter.Colored filter 300 is with colored filter 200 differences: three penetrating regions are reverse V-shaped arrangement in its picture element 310, the V-shaped arrangement in echo area; Three penetrating regions also are reverse V-shaped arrangement in the picture element 320, the also V-shaped arrangement in echo area.

The penetrating region 130 of this colored filter 100 and echo area 140 are except that can adopting identical colorized optical filtering sheet material, and it also can adopt different colorized optical filtering sheet material to make respectively.Wherein, penetrating region 130 adopts the higher relatively material of color saturation, and the relatively low material of color saturation is adopted in echo area 140.

With liquid crystal indicator commonly used is example, and Figure 11 is the diagrammatic cross-section of the utility model display device.This liquid crystal indicator 90 comprises that two glass substrates that are oppositely arranged, 91,92, one liquid crystal layers 94 are positioned between this two plate base 91,92.Colored filter 100 is located at upper substrate 92 surfaces, and an electrode layer 93 is oppositely arranged on the infrabasal plate 91.Wherein, this colored filter 100 comprises a penetrating region 130, an echo area 140, this penetrating region 130 comprises a penetrated bed 131, this echo area 140 further comprise a reflection horizon 141 should and one with the hyaline layer (Over Coat) 151 of these reflection horizon 141 stacking settings.This electrode layer 93 comprises penetration region (indicating) that the penetrating region 130 with colored filter 100 is oppositely arranged and the reflector space (indicating) that is oppositely arranged with the echo area 140 of colored filter 100.

Penetrating region 130 in the sub-picture element 110,120 of each of the utility model colored filter 100 and echo area 140 are crisscross arranged at homonymy not, thereby, the semi-penetration, semi-reflective display device 90 that adopts this colored filter 100 in total reflection or penetrate entirely under the display mode display effect as shown in figure 10, it is avoided in total reflection or penetrates the strip heterochromia that produces under the display mode entirely, thereby reduce to show aberration, improve the consistance that image color shows.

The utility model also has other change design, as: colored filter 100 also can be arranged on the infrabasal plate 91 of this semi-penetrating semi-reflecting type liquid crystal displaying device 90; Penetrating region 130 and echo area 140 are except that can adopting identical colorized optical filtering sheet material, also can adopt different colorized optical filtering sheet material to make respectively, can adopt the higher relatively material of color saturation as penetrating region 130, the relatively low material of color saturation can be adopted in echo area 140.

Claims

1. colored filter, it comprises a plurality of picture elements, each picture element comprises the sub-picture element of red, green, blue three looks, and each sub-picture element comprises echo area and penetrating region, it is characterized in that: the echo area of two adjacent sub-picture elements and penetrating region are to be staggered in each picture element.

2. colored filter as claimed in claim 1 is characterized in that: the echo area of two adjacent sub-picture elements is diagonal angle settings in each picture element.

3. colored filter as claimed in claim 1 is characterized in that: the penetrating region of two adjacent sub-picture elements is diagonal angle settings in each picture element.

4. colored filter as claimed in claim 1 is characterized in that: the penetrating region in each picture element is V-shaped arrangement, and the echo area is to be reverse V-shaped arrangement.

5. colored filter as claimed in claim 1 is characterized in that: the V-shaped arrangement of arranging of echo area in each picture element, arranging of penetrating region is reverse V-shaped arrangement.

6. colored filter as claimed in claim 1 is characterized in that: the thickness of this echo area is thin than penetrating region.

7. colored filter as claimed in claim 6 is characterized in that: further increase by a hyaline layer on this echo area so that keep identical height with this penetrating region.

8. colored filter as claimed in claim 1 is characterized in that: this echo area partly is provided with hole or groove structure.

9. a semi-penetrating semi-reflecting type liquid crystal displaying device comprises a colored filter, it is characterized in that: this colored filter is any described colored filter of claim 1 to 8.

10. colored filter, it comprises a plurality of picture elements, each picture element comprises the sub-picture element of red, green, blue three looks, each sub-picture element comprises echo area and penetrating region, it is characterized in that: in each picture element, each echo area is only adjacent with penetrating region, and each penetrating region is only adjacent with the echo area.