TWI619991B - Display device - Google Patents

Abstract

The present invention provides a display device including a substrate and a black matrix layer, a first color filter and a second color filter, which are disposed on the substrate. The black matrix layer has a first opening, a second opening, and a third opening, which are sequentially arranged along the direction. The first opening and the second opening are disposed adjacent to each other, and the second opening and the third opening are disposed adjacent to each other. The first color filter covers the first opening and extends into the second opening. The second color filter covers the third opening and extends into the second opening. There is a gap between the first color filter and the second color filter in the second opening.

Description

Display device

The present invention relates to a display device, and particularly to a display device in which a color filter of a non-white sub-pixel extends into a white sub-pixel.

With the continuous improvement of the technology of liquid crystal display devices, liquid crystal display devices can be widely used in flat-screen televisions, notebook computers, smart phones and various types of consumer electronics. In order to solve the disadvantage that the viewing angle of the liquid crystal display device is too small, the industry has developed a wide viewing angle liquid crystal display device. However, when the conventional liquid crystal display device is viewed in a large viewing angle direction, the viewer will see that the light of the sub-pixels is emitted from the sub-pixels adjacent to it, thus causing the disadvantage of screen color shift. In particular, when the sub-pixels with darker color brightness are adjacent to the sub-pixels with lighter color, the light of the sub-pixels with darker color lightness is mixed with the light of the white sub-pixels with brighter color light to produce a more pronounced color Partial effect.

The main object of the present invention is to provide a display device to reduce the color shift when viewing the display device at a large viewing angle.

An embodiment of the present invention provides a display device including a first substrate, a black matrix layer, a first color filter, and a second color filter. The black matrix layer is disposed on the first substrate, and the black matrix layer has a first opening, a second opening, and a third opening, which are sequentially arranged along a direction, wherein the first opening and the second opening are disposed adjacent to each other. And the second opening and the third opening are disposed adjacent to each other. The first color filter is disposed on the first substrate, and the first color filter substantially covers the first opening and extends into the second opening. The second color filter is disposed on the first substrate, and the second color filter substantially covers the third opening and extends into the second opening. The first color filter and the first color filter located in the second opening are located in the second opening. There is a gap between the two color filters.

In the display device of the present invention, the first color filter and the second color filter in the second pixel or the fourth pixel adjacent to the white first pixel are extended to correspond to the white first time. In the second opening of the pixel, the color of the second or fourth pixel viewed at a large viewing angle can avoid excessive mixing with the color of the white first pixel, so it can still be close to or still be the first color filter. The color of the light sheet or the second color filter, thereby reducing the color shift when viewing the display device at a wide viewing angle.

Please refer to Figure 1 and Figure 2. FIG. 1 is a schematic top view of a display device according to a first embodiment of the present invention, and FIG. 2 is a schematic cross-sectional view taken along section line A-A 'of FIG. 1. As shown in FIGS. 1 and 2, the color filter substrate 10 a of the display device 10 of this embodiment includes a first substrate 12, a black matrix layer 14, and a plurality of color filters. The first substrate 12 has a first surface 12 a, and the black matrix layer 14 and the color filter are disposed on the first surface 12 a of the first substrate 12. The black matrix layer 14 has a plurality of openings, and each opening corresponds to each sub-pixel of each pixel P of the display frame. For example, the display device 10 of this embodiment may have a plurality of pixels P arranged in a matrix, and each pixel P includes a first pixel SP1, a second pixel SP2, a third pixel SP3, and a fourth pixel SP4. , Arranged in a 2´2 matrix. In each pixel P, the third sub-pixel SP3 and the fourth sub-pixel SP4 are sequentially arranged along the first direction D1 to form a first row of sub-pixels, and the first sub-pixel SP1 and the second sub-pixel SP2 are also arranged along the first sub-pixel. One direction D1 is sequentially arranged to form a second column of sub-pixels, and the first column of sub-pixels and the second column of sub-pixels are sequentially arranged along the second direction D2. Therefore, for the pixels P in the same column, the third-time pixel SP3 and the fourth-time pixel SP4 are alternately arranged along the first direction D1, and the first-time pixel SP1 and the second-time pixel SP2 are arranged along the first direction. The directions D1 are alternately arranged in order. In addition, the first direction D1 in this embodiment may be a horizontal direction of the display screen, and the second direction D2 may be a vertical direction of the display screen, but the present invention is not limited thereto.

The openings of the black matrix layer 14 may include a first opening 141a, a second opening 142a, and a third opening 143a, which are sequentially arranged along the first direction D1. The first opening 141a and the second opening 142a are disposed adjacent to each other, and the second opening 142a and the third opening 143a are disposed adjacent to each other. That is, the first opening 141a, the second opening 142a, and the third opening 143a correspond to three adjacent sub-pixels arranged in the first direction D1, respectively. In this embodiment, the openings may include a plurality of first openings 141a, a plurality of second openings 142a, and a plurality of third openings 143a. The first openings 141a and the third openings 143a are sequentially alternately arranged along the first direction D1. A second opening 142a is disposed between a first opening 141a and a third opening 143a. Each of the first openings 141a and each of the third openings 143a correspond to any two adjacent pixels SP2 of the pixels P adjacent to each other and arranged in the first direction D1. That is, each of the first openings 141 a and each of the third openings 143 a are disposed at positions corresponding to each other in different pixels P. Each second opening 142a corresponds to a first pixel SP1 of each pixel P. In addition, the color filter may include a first color filter 161 and a second color filter 162. Each first color filter 161 substantially covers each first opening 141a and extends into each second opening 142a. Each second color filter 162 substantially covers each third opening 143a and extends into each second opening 142a. In other words, the color filter 161 and the second color filter 162 extend to the same second Inside the opening 142a. Specifically, each of the first color filters 161 may have a first extension portion 161a located in the second opening 142a and not covering the second opening 142a. Each of the second color filters 162 may have a second extension portion 162a, which is located in the second opening 142a and does not cover the second opening 142a. Part of the second opening 142a is not covered by the first extension 161a and the second extension 162a, and both sides of the second opening 142a are covered by the first extension 161a and the second extension 162a, respectively. Figure and Figure 2.

Take two adjacent pixels P arranged in the first direction D1 as the first pixel P1 and the second pixel P2 as an example for description, each first opening 141a corresponds to the second pixel SP2 of each first pixel P1. Therefore, the second sub-pixel SP2 of each first pixel P1 can display the color of each first color filter 161 covering each first opening 141a. Each third opening 143a corresponds to the second sub-pixel SP2 of each second pixel P2, so the second sub-pixel SP2 of each second pixel P2 can display the color of each second color filter 162 covering each third opening 143a . Each second opening 142a corresponds to each first pixel SP1.

In addition, there is a gap G between the first extension portion 161a of the first color filter 161 and the second extension portion 162a of the second color filter 162 in the second opening 142a. The color brightness of the color presented by the first pixel SP1 is greater than the color brightness of the color presented by the second pixel SP2 adjacent thereto. In this embodiment, the gap G in the second opening 142a is not provided with a color filter, so that white light can directly penetrate the gap G and display white. Therefore, the first pixel SP1 can be a white sub-pixel, but this The invention is not limited to this. The color of the second pixel SP2 may be non-white, but is not limited thereto. In another variation, the colors of the first pixel SP1 and the second pixel SP2 may also be non-white. In addition, the first color filter 161 and the second color filter 162 are, for example, the same color or different colors.

It is worth noting that when the viewer looks at the display device 10 with a large viewing angle when he or she is inclined to one side of the second color filter 162, for example, viewing the display device 10 at the position PO1, since the first color filter 161 extends to the first Inside the two openings 142a, the viewer can see the first light L1 with the information of the second pixel SP2 of each first pixel P1 passes through the first extension 161a located in the second opening 142a, so that it can be viewed at a wide viewing angle The color of the second pixel SP2 of the first pixel P1 can be prevented from being excessively mixed with the color of the first pixel SP1 of the second pixel P2, so it can be close to or still be the color of the first color filter 161, thereby reducing the The color shift of the color of the second pixel SP2 of one pixel P1. Similarly, when the display device is viewed toward a side of the first color filter 161 with a large viewing angle, for example, the display device is viewed at the position PO2, since the second color filter 162 extends into the second opening 142a, the viewing A person can see that the second light L2 with the information of the second pixel SP2 of the second pixel P2 passes through the second extension portion 162a located in the second opening 142a, so that the second of the second pixel P2 viewed at a large viewing angle The color of the sub-pixel SP2 can avoid excessive mixing with the color of the first pixel SP1 of the second pixel P2, so it can be close to or still be the color of the second color filter 162, thereby reducing the second pixel of the second pixel P2. Color cast of SP2. Thereby, the display device 10 of this embodiment can effectively reduce the color shift effect. Further, the distance G1 between the side of the first color filter 161 facing the second color filter 162 and the side of the second opening 142a adjacent to the first opening 141a, that is, the width of the first extension 161a The distance G2 between one side of the second color filter 162 facing the first color filter 161 and one side of the second opening 142a adjacent to the third opening 143a, that is, the width of the second extension 162a , Which can be larger than 5 microns, respectively, so that the color of the second pixel SP2 viewed in the positive viewing angle (about 0 degrees) and the large viewing angle (about 60 degrees) on the x-axis and y-axis in the CIE 1931 color space The differences can be less than 0.02, respectively.

In this embodiment, each first color filter 161 may further include a third extension portion 161b extending into the second opening 142a of the first pixel SP1 corresponding to the same first pixel P1, and each second color filter The light sheet 162 may further include a fourth extension portion 162 b extending into the second opening 142 a of the first pixel SP1 corresponding to the different pixel P. In other words, the first extension portion 161a and the third extension portion 161b of each of the first color filters 161 respectively extend into different second openings 142a, and the second extension portion 162a of each second color filter 162 and The fourth extension portions 162b respectively extend into different second openings 142a.

In addition, the openings of the black matrix layer 14 may further include a plurality of fourth openings 144a and a plurality of fifth openings 145a. In addition, the color filter may further include a plurality of third color filters 163 and a plurality of fourth color filters 164. Each fourth opening 144a corresponds to each third-time pixel SP3, and each fifth opening 145a corresponds to each fourth-time pixel SP4. The fourth opening 144a, the fifth opening 145a, the second opening 142a, and the third opening 143a located in the first pixel P1 or the fourth opening 144a, the fifth opening 145a, the second opening 142a, and the first opening 144a located in the second pixel P2. An opening 141a may also be arranged in a 2´2 matrix. In addition, since each third color filter 163 substantially covers each fourth opening 144a, each third sub-pixel SP3 can display the color of each third color filter 163. Each of the fourth color filters 164 substantially covers each of the fifth openings 145a, so that each of the fourth sub-pixels SP4 can display the color of each of the fourth color filters 164.

In this embodiment, since the first opening 141a and the third opening 143a are disposed at positions corresponding to each other in different pixels P, the first color filter 161 and the second color filter 162 have the same color, for example. And the corresponding first pixel P1 and the second pixel SP2 of the second pixel P2 can display the same color. In addition, the width of the first extension portion 161a and the width of the second extension portion 162a may be substantially the same as each other, so that a viewer does not have a color difference when watching at the position PO1 or the position PO2. Furthermore, the first color filter 161 or the second color filter 162 corresponding to the second sub-pixel SP2, the third color filter 163 corresponding to the third sub-pixel SP3, and the first color filter 163 corresponding to the fourth sub-pixel SP4. The four color filters 164 have different colors, and can be three colors that can be mixed into white. Thereby, the colors displayed by the second pixel SP2, the third pixel SP3, and the fourth pixel SP4 can be mixed into white. For example, the first color filter 161 or the second color filter 162, the third color filter 163, and the fourth color filter 164 may have blue, red, and green colors, or yellow, red, and green colors, respectively. Cyan and magenta, but the present invention is not limited to this. The first color filter 161 or the second color filter 162, the third color filter 163, and the fourth color filter. The colors of 164 are also interchangeable. Furthermore, the color filter is not provided in the gap G between the first color filter 161 and the second color filter 162 in this embodiment, so that light can directly penetrate the gap G and present the light. colour. Therefore, when the backlight color is white, the color of the first pixel SP1 is white, which can be used to increase the brightness of each pixel P. Although the brightness of white is greater than the brightness of other colors, this embodiment can effectively avoid the second pixel adjacent to the first pixel SP1 by providing the first extension 161a and the second extension 162a. The color of SP2 has a color shift at a large viewing angle, so the color of the second pixel SP2 may have a large difference in color brightness from the color of the white first pixel SP1. Preferably, since the difference between the color brightness of white and blue is greater than the difference between the color brightness of red and green, the colors of the first color filter 161 and the second color filter 162 may be blue. , But it is not limited to this, and may be red or green. In addition, the color filter substrate 10a may optionally further include a flat layer 18 and an alignment layer 20 to sequentially cover the color filter, but the present invention is not limited thereto.

In this embodiment, the display device 10 further includes an array substrate 10b and a display medium layer 10c. The color filter substrate 10a, the array substrate 10b, and the display medium layer 10c constitute a display panel. The array substrate 10 b includes a second substrate 22 and a plurality of pixel electrodes 24. The second substrate 22 has a second surface 22 a and is disposed on the first surface 12 a facing the first substrate 12. The display medium layer 10 c is disposed between the first substrate 12 and the second substrate 22. For example, the display medium layer 10c may be a liquid crystal layer, so the display device 10 may be a liquid crystal display device, but is not limited thereto. The pixel electrode 24 is disposed between the display medium layer 10 c and the second substrate 22, and each pixel electrode 24 is disposed corresponding to each opening.

Please refer to Figure 3 and refer to Figures 1 and 2 together. FIG. 3 is a schematic top view illustrating an array substrate of each sub-pixel of the first embodiment. In order to clearly display the array substrate 10b of each sub-pixel, FIG. 3 only shows the structure of the array substrate 10b corresponding to a single-time pixel, and the structures in each sub-pixel are the same as each other, but the present invention is not limited thereto. As shown in FIGS. 1 to 3, each pixel electrode 24 may include a plurality of slits 24 a, and the array substrate 10 b may further include a common electrode layer 26 disposed between the pixel electrode 24 and the second substrate 22. The common electrode layer 26 overlaps the slit 24 a of the pixel electrode 24, and an insulating layer 28 may be disposed between the common electrode layer 26 and the pixel electrode 24. Therefore, when the display device 10 displays a picture, a horizontal electric field may be generated between the pixel electrode 24 and the common electrode layer 26 to drive the liquid crystal molecules of the liquid crystal layer 10 c to rotate horizontally. Therefore, the display device 10 of this embodiment is a fringe field switching (FFS) type liquid crystal display device, but the present invention is not limited thereto. In another modified embodiment, the display device 10 may be another type of liquid crystal display device. For example, the common electrode layer 26 may have a plurality of slits, which are alternately arranged with the slits of the pixel electrode 24 in order. Alternatively, the common electrode layer 26 having a plurality of slits may be further disposed on the same plane as the pixel electrode 24 to constitute an in-plane switching (IPS) type liquid crystal display device. Alternatively, the common electrode layer 26 of the display device 10 may be provided between the color filter and the liquid crystal layer 10 c to form a vertical electric field type liquid crystal display device with the pixel electrode 24.

In addition, the array substrate 10 b may further include a thin film transistor TFT, a data line DL, and a scan line SL, which are disposed between the common electrode layer 26 and the second substrate 22. The gate electrode GE, the drain electrode DE, and the source electrode SE of each thin film transistor TFT are electrically connected to each scanning line SL, each pixel electrode 24, and each data line DL. In this embodiment, in order to electrically connect the drain electrode DE of the thin film transistor TFT with the pixel electrode 24, the common electrode layer 26 may have a plurality of sixth openings 26a, and each sixth opening 26a corresponds to the thin film transistor TFT. Where the drain electrode DE is connected to each pixel electrode 24. The electrical connection method of the thin film transistor, the data line and the scanning line of the present invention is not limited to this, and can be adjusted to an appropriate electrical connection method according to actual needs, and the number of the thin film transistor, the data line and the scanning line can also be adjusted. Make adjustments as needed. In addition, since each thin film transistor TFT is arranged corresponding to the black matrix layer 14 arranged between any two adjacent sub-pixels in the second direction D2 so as to be shielded by the black matrix layer 14, it is arranged in the second direction D2. The first width W1 of the black matrix layer 14 between any two adjacent sub-pixels is larger than the second width W2 of the black matrix layer 14 between any two adjacent sub-pixels arranged in the first direction D1, so that it is arranged at Any two adjacent sub-pixels in the second direction D2 are less likely to have a color shift when viewed at a large viewing angle.

In this embodiment, the display device 10 may further include a backlight module 30 disposed on the first surface 12 a facing the first substrate 12, and the backlight module 30 generates a light source as a backlight source of the display panel. Specifically, the backlight module 30 is disposed below the array substrate 10b, and the backlight module 30 may include a plurality of white light emitting diodes 32 for generating white light. In this embodiment, the white light emitting diode 32 includes a blue light emitting diode chip 32a, a red fluorescent powder 32b, and a green fluorescent powder 32c, and the red fluorescent powder 32b and the green fluorescent powder 32c are uniformly mixed and disposed in The light emitting surface of the blue diode wafer 32a.

Please refer to Figure 4, and also refer to Figure 1. FIG. 4 is a schematic diagram showing the relationship between the wavelength of the white light generated by the white light emitting diode of the first embodiment and another modified embodiment and the normalized brightness. As shown in FIG. 4, the white light generated by the white light emitting diode 32 of the first embodiment corresponds to the first curve C1. In the first embodiment, the white light has a first maximum brightness within 430 nm to 455 nm, a second maximum brightness within 625 nm to 640 nm, and the first maximum brightness is greater than the second maximum brightness. Furthermore, the white light has a third maximum brightness from 605 nm to 625 nm, and the second maximum brightness is greater than the third maximum brightness. Further, white light may have a fourth maximum brightness within 640 nm to 655 nm, which is smaller than the third maximum brightness. In addition, the white light has a fifth maximum brightness between 505 nm and 580 nm, which is greater than the fourth maximum brightness and smaller than the second maximum brightness.

It is worth noting that, because the first color filter 161 and the second color filter 162 extend into the second opening 142a, respectively, when the white light of the backlight module 30 penetrates the first time in a manner close to the vertical display panel At the pixel SP1, the white light passes through the first extension portion 161a of the first color filter 161 and the second extension portion 162a of the second color filter 162 in addition to the gap G. Therefore, the color of the white light is the same as that of the first The color of the extension portion 161a and the color of the second extension portion 162a are mixed. In the first embodiment, the white light can be adjusted to the amount of the red phosphor 32b and the green phosphor 32c to make the white light appear yellowish, so that the color displayed by the pixel SP1 for the first time can be close to or be pure white. It is worth noting that the white light-emitting diode 32 of this embodiment can not only make the white light yellowish by increasing the number of red phosphors 32b and green phosphors 32c, but also increase the light-emitting brightness of the white light-emitting diodes 32. For example, it can increase the luminous brightness by about 20%. In addition, since the first extension portion 161a and the second extension portion 162a are provided in the second opening 142a, compared with the second opening 142a where the first extension portion 161a and the second extension portion 162a are not provided, the light transmittance will be lower. Decrease, for example: to approximately 80% of the original. However, in this embodiment, by increasing the light emitting brightness of the white light emitting diode 32, the brightness of the screen displayed by the display device 10 is not reduced by the arrangement of the first extension portion 161a and the second extension portion 162a.

In another modified embodiment, the white light emitting diode 32 includes a blue light emitting diode wafer 32a and a yellow fluorescent powder, and the yellow light emitting powder is disposed on a light emitting surface of the blue light emitting diode wafer 32a. The yellow phosphor may be, for example, YAG, but is not limited thereto. The white light generated by the white light emitting diode 32 of this modified embodiment corresponds to the second curve C2. White light can also adjust the amount of yellow phosphor to make the white light appear yellowish, so the color displayed by the first pixel SP1 can be close to or pure white. In this modified embodiment, the white light has a first maximum brightness within 430 nm to 455 nm, and has a sixth maximum brightness within 505 nm to 655 nm, which is less than the first maximum brightness.

The display device of the present invention is not limited to the above embodiments. The following will continue to disclose other embodiments or variations of the present invention, but in order to simplify the description and highlight the differences between the embodiments or variations, the same elements are labeled with the same reference numerals in the following, and repeated parts will not be described To repeat.

Please refer to FIG. 5 and FIG. 6. FIG. 5 illustrates a schematic top view of a display device according to a second embodiment of the present invention, and FIG. 6 is a schematic cross-sectional view taken along the section line B-B 'of FIG. As shown in FIG. 5 and FIG. 6, compared with the first embodiment, the sub-pixels adjacent to the white first pixel SP1 ′ in the first direction D1 in this embodiment are first pixels having different colors, respectively. The secondary pixel SP2 'and the fourth pixel SP4'. Specifically, the fourth, third, second, and first pixels SP4 ', SP3', SP2 ', and SP1' located in the same column of pixels P 'are sequentially arranged along the first direction D1. The fourth, third, second, and first pixels SP4 ', SP3', SP2 ', and SP1' arranged in order along the first direction D1 constitute a pixel P '. The black matrix layer 14 includes a plurality of first openings 141a ', a plurality of second openings 142a', a plurality of third openings 143a ', and a plurality of fourth openings 144a', and the third openings 143a ', the fourth openings 144a', The first openings 141a 'and the second openings 142a' are alternately arranged in order along the first direction D1. The color filter includes a plurality of first color filters 161 ', a plurality of second color filters 162', and a plurality of third color filters 163 '. Each first color filter 161 ', each second color filter 162', and each third color filter 163 'substantially cover each first opening 141a', each third opening 143a ', and each fourth Opening 144a '. Furthermore, each of the first openings 141a ', each of the second openings 142a', each of the third openings 143a ', and each of the fourth openings 144a' corresponds to each of the second-time pixels SP2 ', each of the first-time pixels SP1', and The fourth sub-pixel SP4 'and each third sub-pixel SP3' are set, so each second sub-pixel SP2 'can display the color of each first color filter 161' covering each first opening 141a ', and each third The pixels SP3 ′ may display the colors of the third color filters 161 ′ covering the fourth openings 144a ′, and the fourth pixels SP4 ′ may display the second color filters covering the third openings 143a ′. Color of sheet 162 '. In addition, the color filter of this embodiment may further include a white color filter 166 disposed on the first surface 12a of the first substrate 12 in the second opening 142a ', and the white color filter 166 covers the gap. G.

In this embodiment, two pixels P ′ adjacent to and arranged in the first direction D1 are respectively taken as the first pixel P1 ′ and the second pixel P2 ′ as an example for description, corresponding to the second pixel of the first pixel P1 ′. The first color filter 161 'of the sub pixel SP2' extends into the second opening 142a 'of the first pixel SP1' corresponding to the first pixel P1 ', and corresponds to the fourth pixel SP4 of the second pixel P2' The 'second color filter 162' extends into the second opening 142a 'of the first pixel SP1' corresponding to the first pixel P1 '. Since the first color filter 161 'and the second color filter 162' respectively correspond to sub-pixels at different positions in each pixel P ', they have different colors.

Further, the first color filter 161 ', the second color filter 162', and the third color filter 163 'have different colors, and can be three colors that can be mixed into white. Thereby, the colors displayed by the second pixel SP2 ', the fourth pixel SP4', and the third pixel SP3 'can be mixed into white, and the white first pixel SP1' can be used to increase the brightness of each pixel P ' . For example, the first, second, and third color filters 161 ', 162', and 163 'may have blue, red, and green colors, or cyan, magenta, and yellow colors, respectively. For limitation, the colors of the first, second, and third color filters 161 ', 162', and 163 'can also be interchanged with each other. In another modified embodiment, in each pixel P ′, the fourth opening 144a ′ corresponding to the third pixel SP3 ′, the first opening 141a ′ corresponding to the second pixel SP2 ′, and the first pixel SP1 ′ The second opening 142a 'and the third opening 143a' corresponding to the fourth pixel SP4 'may be sequentially arranged along the first direction D1, so that the white first pixel SP1' and the adjacent second pixel SP2 ' And the fourth pixel SP4 'is located in the same pixel P'.

In this embodiment, the arrangement of the first, second, third and fourth pixels SP1 ', SP2', SP3 ', SP4' among the pixels P 'located in adjacent columns is different. Specifically, taking adjacent first pixels P1 'and third pixels P3' arranged in the second direction D2 as an example, the fourth, third, second, and first pixels in the first pixel P1 'are SP4 ', SP3', SP2 ', and SP1' are arranged in order along the first direction D1, and in the third pixel P3 'are the second, first, fourth, and third sub-pixels SP2', SP1 ', SP4 'and SP3' are sequentially arranged along the first direction D1. In this way, the colors of the second and first pixels SP2 ', SP1' of the third pixel P3 'can also be mixed with the colors of the fourth and third pixels SP1' and SP3 'of the first pixel P1', so that The color mixing of the display device 10 'is more uniform. The sub-pixel arrangement of the present invention is not limited thereto, and those skilled in the art should easily understand that the sub-pixel arrangement of the present invention may be other ways.

Please refer to FIG. 7, which is a schematic cross-sectional view of a display device according to a third embodiment of the present invention. As shown in FIG. 7, compared to the second embodiment, the width of the first extension portion 161 a ′ extending into the second opening 142 a ′ in the display device 10 ″ of this embodiment is different from that of the second extension portion 162 a ′. Specifically, since different colors have different color brightness, and the second pixel SP2 'and the fourth pixel SP4' adjacent to the first pixel SP1 'of white in the first direction D1 respectively have Different colors, so that in order to obtain greater compensation for colors with lower color brightness when viewing at a large viewing angle, a color filter with a lower color brightness extends wider into the second opening 142a '. For example When the color of the first color filter 161 "is blue and the color of the second color filter 162" is red, since the color lightness of red is greater than the color lightness of blue, the first color filter 161 The distance G1 'between one side of "facing the second color filter 162" and one side of the second opening 142a' adjacent to the first opening 141a ', that is, the width of the first extension 161a' is greater than The second color filter 162 "faces the first color filter Plate 161 "with one side of the second opening 142a 'adjacent the third opening 143a' G2 spacing between one of the sides ', i.e., the second extending portion 162a' width.

In summary, in the display device of the present invention, the first color filter and the second color filter in the second or fourth pixel adjacent to the white first pixel are extended to Among the first white pixels, the color of the second or fourth pixel viewed at a large viewing angle can avoid excessive mixing with the colors of the first white pixel, so it can still be close to or still be the first color filter. The color of the light sheet or the second color filter, thereby reducing the color shift when viewing the display device at a wide viewing angle. The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the scope of patent application of the present invention shall fall within the scope of the present invention.

10, 10 ’, 10” ‧‧‧ display device

10a‧‧‧color filter substrate

10b‧‧‧Array substrate

10c‧‧‧Display media layer

12‧‧‧ the first substrate

12a‧‧‧first surface

14‧‧‧ Black Matrix Layer

141a 、 141a’‧‧‧First opening

142a, 142a’‧‧‧ second opening

143a, 143a’‧‧‧ third opening

144a 、 144a’‧‧‧ Fourth opening

145a‧‧‧Fifth opening

161, 161 ’, 161” ‧‧‧ the first color filter

161a, 161a’‧‧‧First extension

161b‧‧‧Third Extension

162,162 ’, 162” ‧‧‧Second color filter

162a 、 162a’‧‧‧second extension

162b‧‧‧Fourth extension

163, 163’‧‧‧ Third color filter

164‧‧‧Fourth color filter

166‧‧‧White color filter

18‧‧‧ flat layer

20‧‧‧Alignment layer

22‧‧‧second substrate

22a‧‧‧Second surface

24‧‧‧pixel electrode

24a‧‧‧Slit

26‧‧‧Common electrode layer

28‧‧‧ Insulation

30‧‧‧ backlight module

32‧‧‧White light emitting diode

32a‧‧‧Blue Diode

32b‧‧‧ red phosphor

32c‧‧‧Green phosphor

C1‧‧‧ the first curve

C2‧‧‧ the second curve

D1‧‧‧ first direction

D2‧‧‧ Second direction

G‧‧‧ Clearance

G1, G1 ’, G2, G2’ ‧‧‧ pitch

L1‧‧‧First Light

L2‧‧‧Second Light

P, P’‧‧‧ pixels

P1, P1’‧‧‧ the first pixel

P2, P2’‧‧‧ second pixel

P3’‧‧‧ third pixel

PO1, PO2‧‧‧Location

SP1, SP1 ’‧‧‧ the first pixel

SP2, SP2 ’‧‧‧ second pixel

SP3, SP3’‧th third pixel

SP4, SP4 ’‧‧‧ fourth pixel

TFT‧‧‧ thin film transistor

DL‧‧‧Data Line

SL‧‧‧scan line

GE‧‧‧Gate

DE‧‧‧ Drain

SE‧‧‧Source

W1‧‧‧first width

W2‧‧‧Second width

FIG. 1 is a schematic top view of a display device according to a first embodiment of the present invention. Fig. 2 is a schematic cross-sectional view taken along section line A-A 'of Fig. 1. FIG. 3 is a schematic top view illustrating an array substrate of each sub-pixel of the first embodiment. FIG. 4 is a schematic diagram showing the relationship between the wavelength of the white light generated by the white light emitting diode of the first embodiment and another modified embodiment and the normalized brightness. FIG. 5 is a schematic top view of a display device according to a second embodiment of the present invention. Fig. 6 is a schematic cross-sectional view taken along section line B-B 'of Fig. 5. FIG. 7 is a schematic cross-sectional view of a display device according to a third embodiment of the present invention.

Claims (16)

A display device includes: a first substrate; a black matrix layer disposed on the first substrate, and the black matrix layer has a first opening, a second opening, and a third opening, and is formed along a direction. In a sequential arrangement, wherein the first opening and the second opening are disposed adjacent to each other, and the second opening and the third opening are disposed adjacent to each other; a first color filter is disposed on the first substrate, and The first color filter substantially covers the first opening and extends into the second opening; and a second color filter is disposed on the first substrate, and the second color filter is substantially Covering the third opening and extending into the second opening, wherein there is a gap between the first color filter and the second color filter in the second opening, and the first color A distance between a side of the filter facing the second color filter and a side of the second opening adjacent to the first opening and the second color filter facing the first color filter One side of the sheet and the second opening are adjacent to one of the third openings Spacing between greater than 5 microns, respectively. The display device according to claim 1, wherein the first color filter and the second color filter have the same color. The display device according to claim 1, wherein a distance between a side of the first color filter facing the second color filter and a side of the second opening adjacent to the first opening is The distance between one side of the second color filter facing the first color filter and one side of the second opening adjacent to the third opening is substantially the same. A display device is a fringe field switching liquid crystal display device, including: A first substrate; a black matrix layer disposed on the first substrate, and the black matrix layer having a first opening, a second opening, and a third opening, which are sequentially arranged along a direction, wherein the first An opening and the second opening are disposed adjacent to each other, and the second opening and the third opening are disposed adjacent to each other; a first color filter is disposed on the first substrate, and the first color filter A sheet substantially covers the first opening and extends into the second opening; a second color filter is disposed on the first substrate, and the second color filter substantially covers the third opening, And extends into the second opening, wherein a gap exists between the first color filter and the second color filter in the second opening, and the first color filter and the second color The filters have different colors, and the first color filter is blue and the second color filter is red; a second substrate is disposed facing the first substrate; a liquid crystal layer is disposed Between the first substrate and the second substrate; three pixel electrodes, Placed between the liquid crystal layer and the second substrate, and the pixel electrodes are respectively disposed corresponding to the first opening, the second opening, and the third opening; and a common electrode layer is disposed between the pixel electrodes and the Between the second substrates, each of the pixel electrodes includes a plurality of slits. The display device according to claim 4, wherein a distance between a side of the first color filter facing the second color filter and a side of the second opening adjacent to the first opening and A distance between a side of the second color filter facing the first color filter and a side of the second opening adjacent to the third opening is greater than 5 microns, respectively. The display device according to claim 4, wherein the first color filter faces the second color The distance between one side of the filter and one side of the second opening adjacent to the first opening is larger than the side of the second color filter facing one of the first color filter and the first color filter. The distance between two openings adjacent to one side of the third opening. The display device according to claim 1 or 4, further comprising a white color filter disposed in the second opening and covering the gap. The display device according to claim 1, wherein the black matrix layer further includes a fourth opening and a fifth opening, and the fourth opening, the fifth opening, the second opening, and the third opening are arranged in a matrix. . The display device according to claim 8, further comprising a third color filter and a fourth color filter, wherein the third color filter covers the fourth opening, and the fourth color filter covers The fifth opening, and the second color filter, the third color filter, and the fourth color filter have different colors to mix white. The display device according to claim 9, wherein the colors of the first color filter and the second color filter have blue. The display device according to claim 1 or 4, wherein the black matrix layer further includes a fourth opening, the fourth opening, the first opening, the second opening, and the third opening are sequentially arranged along the direction. . The display device according to claim 11, further comprising a third color filter, wherein the first Three color filters cover the fourth opening, and the first color filter, the second color filter, and the third color filter have different colors to mix white. The display device according to claim 1, further comprising: a second substrate disposed to face the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; and three pixel electrodes, The pixel electrodes are disposed between the liquid crystal layer and the second substrate, and the pixel electrodes are respectively disposed corresponding to the first opening, the second opening, and the third opening. The display device according to claim 13, further comprising a common electrode layer disposed between the pixel electrodes and the second substrate, and each of the pixel electrodes includes a plurality of slits. The display device according to claim 1 or 4, further comprising a backlight module, which is arranged facing the first substrate, and the backlight module generates a white light, and the white light has a first light within 430 nm to 455 nm. A maximum brightness has a second maximum brightness from 625 nm to 640 nm, and the first maximum brightness is greater than the second maximum brightness. The display device according to claim 15, wherein the white light has a third maximum brightness from 605 nm to 625 nm, and the second maximum brightness is greater than the third maximum brightness.