TWI522711B - Display device - Google Patents

Description

monitor

This invention relates to a display, and more particularly to the design of a light-shielding projection in a display.

Since liquid crystal displays (LCDs) have the advantages of low voltage operation, no radiation scattering, light weight, and small size, they have become the mainstream of displays in recent years, and are constantly moving toward colorization.

The color filter film can be used for full color display, color filter substrate, color filter film (COA) technology and The technique of creating an array on a color filter (AOC) is a relatively common technology. Taking COA technology as an example, since the color filter film is directly formed on the pixel array, the mismatching of the color filter film and the pixel array is small, and the pixel factor of high pixel is high. It has been widely used in commercially available products.

The present invention provides a display capable of effectively avoiding light leakage caused by light-shielding protrusions to improve display quality.

The display of the present invention includes a first substrate, a second substrate, a display medium, a pixel array, and at least one light-shielding protrusion. The second substrate is disposed opposite to the first substrate. The display medium is disposed between the first substrate and the second substrate. The pixel array is disposed on the first substrate and located between the first substrate and the display medium, and includes a plurality of pixel units, each of the pixel units including at least one pixel electrode for driving the display medium. The light-shielding protrusion is disposed between the first substrate and the second substrate, and is in contact with the display medium. The sidewall of the light-shielding protrusion has a line, and the tangent forms an angle with the surface of the first substrate or the surface of the second substrate, and the angle is less than 60 degrees. .

In an embodiment of the invention, the light shielding protrusion is disposed between the second substrate and the display medium.

In an embodiment of the invention, the light shielding protrusion comprises a stacked light shielding pattern and a common electrode layer, and the common electrode layer is in contact with the display medium.

In an embodiment of the invention, the common electrode layer and the light shielding protrusion are substantially conformal.

In an embodiment of the invention, the light-shielding protrusion comprises a light-shielding pattern, a common electrode layer and a coating layer stacked in sequence, and the light-shielding pattern is disposed between the second substrate and the common electrode layer, and the coating layer In contact with the display medium.

In an embodiment of the invention, the light shielding protrusion is disposed between the first substrate and the display medium.

In an embodiment of the invention, a color filter film is further included and integrated in In the pixel array.

In an embodiment of the invention, the pixel electrode is disposed on the color filter film.

In an embodiment of the invention, the color filter film comprises a plurality of color filter patterns, and the at least one light-shielding protrusion is formed by at least two overlapping color filter patterns.

In an embodiment of the invention, the area on both sides of the light-shielding protrusion is a light-transmitting area.

In an embodiment of the invention, the pixel unit is electrically connected to a data line and a scan line, and at least one of the pixel electrodes is spaced apart from the data line without overlapping with the data line, and at least one light-shielding protrusion is located at least Two adjacent pixel electrodes overlap with two adjacent pixel electrodes.

In an embodiment of the invention, the pixel unit is electrically connected to a data line and a scan line, and each pixel unit includes a first pixel electrode and a second pixel electrode, and the first pixel electrode a horizontal interval from the data line and not overlapping the data line, the second pixel electrode partially overlapping the data line, and at least one light-shielding protrusion is located between the two adjacent first pixel electrodes and adjacent to the first two The pixel electrodes partially overlap.

In an embodiment of the invention, at least one of the light-shielding protrusions is located between two adjacent second pixel electrodes.

In an embodiment of the present invention, each of the pixel units is electrically connected to a scan line, a first data line, and a second data line, and each pixel unit includes a first pixel electrode and a first pixel. Two-pixel electrode, first pixel electrode and first data The second pixel electrode is electrically connected to the second data line, wherein the first data line and the second data line are alternately arranged, and the two adjacent first data lines and the second data line are located adjacent to each other. Between the first pixel electrodes, the first pixel electrode does not overlap with the first data line and the second data line, and at least one light-shielding protrusion is located between two adjacent first pixel electrodes, and at least one light-shielding protrusion And partially overlapping the two adjacent first pixel electrodes, and overlapping the second data line adjacent to the second data line and the second data line.

In an embodiment of the invention, the second pixel electrode partially overlaps the first data line and the second data line, and at least one light-shielding protrusion is located in a region between two adjacent second pixel electrodes. And a gap exists between the first data line and the second data line, and the width of the gap, the sum of the line width of the first data line and the line width of the second data line is greater than the second pixel electrode located adjacent to the second The width of at least one light-shielding protrusion between.

Based on the above, the angle design of the light-shielding protrusion in the display of the present invention can effectively improve the light leakage problem occurring at the edge of the light-shielding protrusion, so that the display of the present invention has good display quality.

The above described features and advantages of the invention will be apparent from the following description.

200, 300‧‧‧ display

210‧‧‧First substrate

210a, 240a‧‧‧ surface

220‧‧‧ pixel array

230‧‧‧Color filter film

232‧‧‧Color filter pattern

240‧‧‧second substrate

250, 250'‧‧‧ shading projections

250a, 250a’‧‧‧ side wall

260‧‧‧ Display media

262‧‧‧ liquid crystal molecules

θ , θ' ‧‧‧ angle

DL‧‧‧ data line

DL1‧‧‧ first data line

DL2‧‧‧ second data line

G1, G2, G3‧‧‧ gap

W1, W4‧‧‧ width

W2, W3‧‧‧ line width

P‧‧‧ pixel unit

PE1‧‧‧ first pixel electrode

PE2‧‧‧second pixel electrode

SL‧‧‧ scan line

SW1‧‧‧ first switch

SW2‧‧‧second switch

T, T’‧‧‧ tangent

1 is a top plan view of a display according to a first embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view taken along line A-A' and line B-B' of Fig. 1.

Fig. 3 is a schematic cross-sectional view taken along line A-A' and line B-B' of Fig. 1.

Figure 4 is a further cross-sectional view taken along line A-A' and line B-B' of Figure 1.

Figure 5 is a further cross-sectional view taken along line A-A' and line B-B' of Figure 1.

Figure 6 is a top plan view of a display in accordance with a second embodiment of the present invention.

Fig. 7 is a schematic cross-sectional view taken along line C-C' and line D-D' in Fig. 6.

Figure 8 is a schematic cross-sectional view taken along line C-C' and line D-D' of Figure 6;

Fig. 9 is a bar graph showing the total number of sheets of the color filters of each group according to the experimental example, and a line graph showing the average value of the unevenness of display of each group of color filters.

Fig. 10A is a scanning electron micrograph of a light-shielding projection of the color filters of Groups 14 to 22 according to Experimental Examples.

Fig. 10B is a scanning electron micrograph of the light-shielding protrusions of the first to thirteenth color filters according to the experimental example.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a top plan view of a display according to a first embodiment of the present invention, and Fig. 2 is a cross-sectional view taken along line A-A' and line B-B' of Fig. 1. Referring to FIG. 1 and FIG. 2 , the display 200 of the embodiment includes a first substrate 210 , a second substrate 240 , a display medium 260 , a pixel array 220 , and at least one light-shielding protrusion 250 . The second substrate 240 is disposed opposite to the first substrate 210. The display medium 260 is disposed between the first substrate 210 and the second substrate 240. The first substrate 210 and the second substrate 240 are, for example, a glass substrate, a plastic substrate, a flexible substrate, or another substrate. The display medium 260 is, for example, a liquid crystal layer including a plurality of liquid crystal molecules 262. In particular, for the convenience of explanation, only draw The liquid crystal molecules 262 located at one side wall 250a of the light-shielding protrusion 250 are exemplified, but the display medium 260 substantially includes uniformly distributed liquid crystal molecules 262.

The pixel array 220 is disposed on the first substrate 210 and located between the first substrate 210 and the display medium 260. The pixel array 220 includes a plurality of pixel units P. In the embodiment, the pixel unit P includes, for example, a first pixel electrode PE1, a second pixel electrode PE2, a first switch SW1, and a second switch SW2 for driving the display medium 260. In detail, the pixel unit P is electrically connected to the scan line SL and the data line DL, respectively, the first switch SW1 is electrically connected to the scan line SL and the data line DL, and the first pixel electrode PE1 is connected to the first switch SW1. . The second switch SW2 is electrically connected to the scan line SL and the data line DL, and the second pixel electrode PE2 is electrically connected to the second switch SW2. The first pixel electrode PE1 and the second pixel electrode PE2 are disposed, for example, on the color filter film 230. Here, the first switch SW1 and the second switch SW2 in each pixel unit P are connected to the same scan line SL and the same data line DL, a so-called 1D1G architecture. In particular, although in the present embodiment, the same data line DL has different line widths as an example, that is, the line width of the data line DL between the two adjacent first pixel electrodes PE1 is smaller than two. The line width of the data line DL between the adjacent second pixel electrodes PE2, but the present invention is not limited thereto. That is to say, in other embodiments, the data lines DL may also have the same line width or a plurality of different line widths.

In the present embodiment, the display 200 includes, for example, a color filter film 230 integrated in the pixel array 220. The color filter film 230 includes, for example, a plurality of color filter patterns 232. The color filter film 230 of the embodiment is disposed on the first pixel electrode Below the PE1 and the second pixel electrode PE2. In detail, the color filter film 230 is disposed on the first substrate 210 to cover the scan line SL, the data line DL, the first switch SW1, and the second switch SW2. The color filter pattern 232 is, for example, a red filter pattern, a green filter pattern, or a blue filter pattern.

The light-shielding protrusion 250 is disposed between the first substrate 210 and the second substrate 240 and is in contact with the display medium 260. The sidewall 250a of the light-shielding protrusion 250 has a line T, a tangent T and a surface of the first substrate 210 or the second substrate 240. 210a, 240a form an angle θ , and the angle θ is less than 60 degrees. The surface 210a, 240a of the first substrate 210 or the second substrate 240 refers to the surface 210a of the first substrate 210, the surface 240a of the second substrate 240, or the first substrate 210 or the first substrate 210 disposed on the light-shielding protrusion 250. The surfaces of the surfaces 210a, 240a of the two substrates 240 are parallel. In detail, in the present embodiment, the light-shielding protrusions 250 are located between the second substrate 240 and the display medium 260 and disposed on the surface 240a of the second substrate 240. Therefore, the included angle θ is formed by the tangent T of the side wall 250a of the light-shielding protrusion 250 and the surface 240a of the second substrate 240. In the present embodiment, the light-shielding protrusions 250 are, for example, located above the color filter film 230 but are not in contact with the color filter film 230.

In the present embodiment, the light-shielding protrusion 250 is, for example, a single-layer pattern composed of a light-shielding material. Therefore, the included angle θ is formed by the tangent T of the side wall 250a of the light-shielding protrusion 250 and the surface 240a of the second substrate 240. The angle θ is, for example, between 30 and 60 degrees, and preferably 45 degrees. The material of the light-shielding protrusions 250 is, for example, a black resin, which is produced, for example, by making the black resin polymer have a proper degree of crosslinking and baking it with a specific temperature so that the light-shielding protrusions formed on the surface 240a of the second substrate 240 are formed. The angle θ of the object 250 is less than 60 degrees. The degree of crosslinking of the material of the light-shielding protrusions 250 is, for example, 50% to 80%, and the baking temperature is, for example, 230 ° C to 240 ° C.

In particular, although the light-shielding protrusion 250 includes only a light-shielding material as an example in the present embodiment, the present invention is not limited thereto. In other words, the light-shielding protrusions 250 may also be composed of more film layers. For example, in another embodiment, as shown in FIG. 3, the light-shielding protrusions 250 include, for example, a light-shielding pattern 252 and a common electrode layer 254, which are sequentially stacked on the second substrate 240, and the common electrode layer 254 and the display medium. 260 contacts. In this embodiment, the included angle θ is substantially formed by the tangent T of the sidewall of the outermost common electrode layer 254 and the surface 240a of the second substrate 240. Here, the common electrode layer 254 is formed conformally with the light shielding pattern 252, for example, and thus the sidewall of the common electrode layer 254 is substantially parallel to the tangent of the sidewall of the light shielding pattern 252. In another embodiment, as shown in FIG. 4, the light-shielding protrusions 250 may also include a light-shielding pattern 252, a common electrode layer 254, and a cladding layer 256 which are sequentially stacked on the second substrate 240. Between a substrate 210 and the common electrode layer 254, the cladding layer 256 is in contact with the display medium 260. In this embodiment, the included angle θ is substantially formed by the tangent T of the sidewall of the outermost cladding layer 256 and the surface 240a of the second substrate 240. Wherein, the cladding layer 256 and the common electrode layer 254 are conformally formed, for example, with the light shielding pattern 252, and thus the sidewall of the cladding layer 256 is substantially parallel to the tangent of the sidewall of the light shielding pattern 252. Of course, although the film layers in the light-shielding protrusions 250 are formed in common with each other in the above-described embodiment, they are not limited thereto. In other words, as long as the light-shielding projection 250a thereof side walls 250 of the tangent T to the surface 240a of the second substrate 240 is formed an angle θ less than 60 degrees that meet the requirements of the invention.

In the present embodiment, the first pixel electrode PE1 is, for example, at a horizontal interval from the data line DL and does not overlap the data line DL. That is, there is a gap G1 between the first pixel electrode PE1 and the data line DL. The light-shielding protrusion 250 is, for example, located between two adjacent first pixel electrodes PE1 and partially overlaps the two adjacent first pixel electrodes PE1. In other words, the light-shielding protrusion 250 is, for example, a gap G1 between the first pixel electrode PE1 and the data line DL and an edge of the first pixel electrode PE1, and a region on both sides of the light-shielding protrusion 250 is a light-transmitting region. In addition, the light-shielding protrusions 250 are further disposed above the partial scan lines SL to shield the first switch SW1 and the second switch SW2. Furthermore, in the present embodiment, the light shielding protrusions 250 are covered over the partial data lines DL as an example, but in another embodiment, the light shielding protrusions 250 may also substantially cover the entire data line DL.

In the present embodiment, the display 200 includes, for example, a light-shielding protrusion 250'. The light-shielding protrusions 250 ′ are formed, for example, by two overlapping color filter patterns 252 , and are disposed between the first substrate 210 and the display medium 260 and are in contact with the display medium 260 . The sidewall 250a' of the light-shielding protrusion 250' has a line T', and the tangent T' forms an angle θ' with the surface 210a of the first substrate 210, and the angle θ' is less than 60 degrees. The included angle θ' is, for example, between 30 degrees and 60 degrees. Here, the angle θ' is substantially formed between the flat surface of the color filter pattern 232 and the tangent T' of the sidewall 250a' of the light-shielding protrusion 250', wherein the upper surface of the color filter pattern 232 is, for example, the first substrate The surface 210a of 210 is substantially parallel.

In the embodiment, the second pixel electrode PE2 is, for example, connected to the data line DL. Partial overlap. That is, the data line DL substantially shields the gap G2 between the second pixel electrodes PE2 and the edge of the second pixel electrode PE2. The light-shielding protrusion 250' is, for example, located between two adjacent second pixel electrodes PE2, overlapping the data line DL but not overlapping the second pixel electrode PE2, that is, the width of the light-shielding protrusion 250' is smaller than the data line. The line width of the DL. In particular, although in the present embodiment, the gap between the second pixel element PE2 and the edge of the second pixel electrode PE2 is substantially shielded by the data line DL, in another example, If the data line DL is at a horizontal interval from the second pixel electrode PE2 and does not overlap with the data line DL, the light-shielding protrusion 250' can be used to shield the gap G2 between the data line DL and the second pixel electrode PE2. Avoid the occurrence of light leakage.

Fig. 5 is a schematic cross-sectional view showing another line taken along line A-A' and line BB' of Fig. 1. Referring to FIG. 2 and FIG. 5 simultaneously, the structure illustrated in FIG. 5 is similar to the structure illustrated in FIG. 2, and the main difference between the two is that the light-shielding protrusions 250 in FIG. 5 are fabricated in color filter. The film 230 is in contact with the color filter film 230, a so-called BOA (Black Matrix on Array) structure. In detail, the light-shielding protrusion 250 is located between the first substrate 210 and the display medium 260, and is in contact with the display medium 260. The sidewall 250a of the light-shielding protrusion 250 has a line T, and the tangent T forms a surface 210a of the first substrate 210. An angle θ , the angle θ is less than 60 degrees. Here, the angle θ is substantially formed between the upper surface of the first pixel electrode PE1 and the tangent T of the sidewall 250a of the light-shielding protrusion 250, wherein the upper surface of the first pixel electrode PE1 is, for example, the first substrate 210 Surface 210a is substantially parallel. The common electrode layer 254 is disposed on the second substrate 240, for example. 2 and FIG. 5, in order to make the light-shielding protrusions 250 have a relative horizontal positional relationship with the pixel electrodes PE1 and the data lines DL, the light-shielding protrusions 250 may be disposed between the second substrate 240 and the display medium 260 as needed. Or it is disposed between the first substrate 210 and the display medium 260. Furthermore, the display 200 illustrated in FIG. 5 may also include the light-shielding protrusions 250 ′ illustrated in FIG. 2 .

In the above embodiment, the light-shielding protrusions 250 are located above the partial regions of the pixel electrode PE1, the data line DL, and the scan line SL to shield the gap G1 between the data line DL and the pixel electrode PE1 and the first switch SW1. And the second switch SW2. Since the angles T, T' of the side walls 250a, 250a' of the light-shielding protrusions 250, 250' and the surfaces 210a, 240a of the first substrate 210 or the second substrate 240 form an angle θ of less than 60 degrees, the light-shielding protrusions 250 are located. The liquid crystal molecules 262 at the sidewalls 250a, 250a' of 250' may have an appropriate tilting angle without excessive tilting. In this way, light leakage in the conventional liquid crystal display can be avoided. In other words, the display can be displayed evenly with good display quality and low manufacturing cost.

[Second embodiment]

6 is a top view of a display according to a second embodiment of the present invention, FIG. 7 is a cross-sectional view taken along line C-C' and line DD' of FIG. 6, and FIG. 8 is a cross-sectional view taken along line C-C of FIG. Another cross-sectional view of the 'line and D-D' line. Referring to FIG. 6 to FIG. 8, the display 300 of the present embodiment is similar in structure to the display 200, and the following mainly describes the main differences. In the embodiment, a plurality of first data lines DL1 and second data lines DL2 are disposed on the first substrate 210. The first data line DL1 and the second data line DL2 are alternately arranged, and the two adjacent first data lines DL1 and second data lines DL2 are located in two phases. Between the adjacent first pixel electrodes PE1 and the two adjacent second pixel electrodes PE2, wherein the first pixel electrode PE1 is electrically connected to the first data line DL1, and the second pixel electrode PE2 is second. The data line DL2 is electrically connected. In detail, each pixel unit P is electrically connected to the scan line SL, the first data line DL1, and the second data line DL2, respectively. The first switch SW1 and the scan line SL are electrically connected to the first data line DL1, and the first pixel electrode PE1 is electrically connected to the first switch SW1. The second switch SW2 is electrically connected to the scan line SL and the second data line DL2, and the second pixel electrode PE2 is electrically connected to the second switch SW2. The first pixel electrode PE1 and the second pixel electrode PE2 are disposed, for example, on the color filter film 230. Here, the first switch SW1 and the second switch SW2 in each pixel unit P are connected to the same scan line SL and different data lines DL1, DL2, a so-called 2D1G architecture.

In this embodiment, the color filter film 230 is disposed under the first pixel electrode PE1 and the second pixel electrode PE2, and covers the scan line SL, the first data line DL1, the second data line DL2, and the first switch SW1. And a second switch SW2.

In this embodiment, the light-shielding protrusions 250 are disposed between the first substrate 210 and the second substrate 240, and are in contact with the display medium 260. The sidewalls 250a of the light-shielding protrusions 250 have a line T, a tangent T and the first substrate 210 or The surfaces 210a, 240a of the second substrate 240 form an angle θ with an included angle θ of less than 60 degrees. The surfaces 210a and 240a of the first substrate 210 or the second substrate 240 refer to the surface 210a of the first substrate 210 and the surface 240a of the second substrate 240 where the light-shielding protrusions 250 are disposed.

In the present embodiment, the first pixel electrode PE1 does not overlap, for example, the first data line DL1 and the second data line DL2. That is, the first pixel electrode PE1 and There is a gap G1 between the first data line DL1 and the second data line DL2. The light-shielding protrusion 250 is, for example, located between two adjacent first pixel electrodes PE1 and partially overlaps the two adjacent first pixel electrodes PE1. In other words, the light-shielding protrusion 250 shields the first pixel electrode PE1 from the first data line DL1 and the gap G1 between the first pixel electrode PE1 and the second data line DL2, and shields the first data line DL1 and the second data line. A gap G3 between the DL2, and a region on both sides of the light-shielding protrusion 250 is a light-transmitting region. Further, the light shielding protrusions 250 are further disposed above the partial scanning lines SL to shield the first switch SW1. Furthermore, the display 300 may also include a light-shielding protrusion 250' as illustrated in FIG.

In this embodiment, the two adjacent second pixel electrodes PE2 are partially overlapped with the first data line DL1 and the second data line DL2, for example. In addition, a gap G3 exists between the first data line DL1 and the second data line DL2, and a gap G3 between the first data line DL1 and the second data line DL2 and the second adjacent pixel electrode PE2 The gap G2 overlaps. In the present embodiment, the gap G3 is covered by the light-shielding protrusions 250. In more detail, the light-shielding protrusion 250 is, for example, located in a region between two adjacent second pixel electrodes PE2, and the width W1 of the gap G3 between the first data line DL1 and the second data line DL2 is The sum (W1+W2+W3) of the line width W2 of one data line DL1 and the line width W3 of the second data line DL2 is, for example, greater than the width of the light-shielding protrusion 250 between the two adjacent second pixel electrodes PE2. W4. Therefore, the light-shielding protrusions 250 do not completely shield the first data line DL1 and the second data line DL2.

As shown in FIG. 7, in the embodiment, the light-shielding protrusion 250 is fabricated. Above the color filter film 230, but not in contact with the color filter film 230. In detail, the light-shielding protrusions 250 are located between the second substrate 240 and the display medium 260.

Figure 8 is a schematic cross-sectional view taken along line C-C' and line DD' of Figure 6; The light-shielding protrusion 250 in FIG. 8 is formed on the color filter film 230 and is in contact with the color filter film 230, that is, a so-called BOA structure. That is, the light-shielding protrusion 250 is located between the first substrate 210 and the display medium 260, and is in contact with the display medium 260. The sidewall 250a of the light-shielding protrusion 250 has a line T, and the tangent T forms a surface 210a of the first substrate 210. An angle θ , the angle θ is less than 60 degrees. Here, the angle θ is substantially formed between the upper surface of the first pixel electrode PE1 and the tangent T of the sidewall 250a of the light-shielding protrusion 250, wherein the upper surface of the first pixel electrode PE1 is, for example, the first substrate 210 Surface 210a is substantially parallel.

In this embodiment, the light-shielding protrusion 250 shields the gap G3 between the first pixel electrode PE1 and the first data line DL1 and the second data line DL2, and the first pixel electrode PE1 and the first data line DL1 and the second A gap G1 between the data lines DL2. In a region between the two adjacent second pixel electrodes PE2, the light-shielding protrusions 250 shield the gap G3 between the first data line DL1 and the second data line DL2. Since the surface of the second substrate 210 or the sidewall 240 of the protrusion 250a of the light shielding material 250 to the first substrate tangent angle T θ 210a, 240a are formed is smaller than 60 degrees, the liquid crystal molecules located in the light-shielding projection 250a at the side wall 250 of the can 262 Have an appropriate tipping angle without overturning. In this way, light leakage in the conventional liquid crystal display can be avoided. In other words, the display of the present invention can display uniformly, has good display quality, and has low manufacturing cost.

In particular, although in the above-described embodiment, the pixel array having the structure of FIGS. 1 to 7 is taken as an example, the spirit of the present invention lies in the angle design of the light-shielding protrusion, and thus the light-shielding projection Can be applied to various forms of pixel structure.

[Experimental example]

In this experimental example, the measurement of the unevenness ratio (CF mura ratio) was performed on a plurality of sets of color filters to observe the relationship between the display unevenness ratio and the inclination angle of the side walls of the light-shielding protrusions in the color filter. The inclination angle of the side wall of the light-shielding protrusion refers to the angle formed between the normal line of the side wall of the light-shielding protrusion and the surface of the substrate, and the experimental results are shown in FIG. 9. 9 is a bar graph showing the total number of sheets of each color filter according to an experimental example, and a line graph showing the average value of the unevenness of display of each group of color filters, wherein the abscissa indicates the group number to be tested. The left ordinate indicates the total number of color filters of each group, and the right ordinate indicates the average value of the display unevenness of each group of color filters. As is apparent from Fig. 9, statistically unevenness was observed in the first to thirteenth color filters, but statistically unevenness was not observed in the 14th to 22nd color filters. That is, the 14th to 22nd color filters have improved display quality. Therefore, the average side wall tilt angles of the light-shielding protrusions in the color filters of the 14th to 22nd and the 1st to 13th color filters were separately observed using a scanning electron microscope, and the observed average phenomenon is as shown in FIGS. 10A and 10B, respectively. . As can be seen from FIG. 10A, in the color filter group in which the display unevenness is remarkably improved, the average tilt angle of the side wall of the light-shielding protrusion (the portion from the dotted line) is approximately less than 60 degrees, and is substantially between 30. Degree to 60 degrees. Conversely, having In the color filter group in which the unevenness is displayed, the average inclination angle of the side wall of the light-shielding protrusion (the portion from the dotted line) is approximately greater than 60 degrees.

In particular, although the pixel array having the 1D1G and 2D1G architectures is taken as an example in the above embodiment, the present invention is not limited thereto. In other words, the light-shielding protrusion of the present invention can be applied to various forms of pixel structures.

In summary, the angle θ formed by the tangent of the sidewall of the light-shielding protrusion of the present invention and the surface of the first substrate or the second substrate is less than 60 degrees, so that liquid crystal molecules located at the sidewall of the light-shielding protrusion may have appropriate tilting Angle without overturning. In this way, light leakage caused by excessive tilting angle of liquid crystal molecules at the edge of the black matrix layer in the liquid crystal display can be avoided. In other words, the display can be displayed evenly with good display quality. In addition, since the manufacturing method of the light-shielding protrusion hardly causes an increase in the manufacturing cost of the display, and does not affect the aperture ratio of the pixel. Therefore, the display of the embodiment has high display quality and low production cost.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

210‧‧‧First substrate

210a, 240a‧‧‧ surface

230‧‧‧Color filter film

232‧‧‧Color filter pattern

240‧‧‧second substrate

250, 250'‧‧‧ shading projections

250a, 250a’‧‧‧ side wall

260‧‧‧ Display media

262‧‧‧ liquid crystal molecules

θ , θ' ‧‧‧ angle

DL‧‧‧ data line

G1, G2‧‧‧ gap

PE1‧‧‧ first pixel electrode

PE2‧‧‧second pixel electrode

T, T’‧‧‧ tangent

Claims (14)

A display includes: a first substrate; a second substrate disposed opposite the first substrate; a display medium disposed between the first substrate and the second substrate; a pixel array disposed on the first a substrate and located between the first substrate and the display medium, comprising a plurality of pixel units, each of the pixel units including at least one pixel electrode for driving the display medium, wherein each of the pixel units and the pixel unit The first data line and the scan line are electrically connected, and each of the pixel units includes a first pixel electrode and a second pixel electrode, and the first pixel electrode is spaced apart from the first data line by a horizontal interval without And overlapping with the first data line, the second pixel electrode partially overlaps the first data line, and the at least one light shielding protrusion is located between two adjacent first pixel electrodes and adjacent to the first picture And the at least one light-shielding protrusion is disposed between the first substrate and the second substrate, in contact with the display medium, the sidewall of the at least one light-shielding protrusion has a line, the tangent and the first The surface of the substrate or the first The surface of the substrate form an angle, the angle is less than 60 degrees. The display of claim 1, wherein the at least one light-shielding protrusion is disposed between the second substrate and the display medium. The display of claim 2, wherein the at least one light-shielding protrusion comprises a stacked light-shielding pattern and a common electrode layer, the common electrode layer being in contact with the display medium. The display of claim 3, wherein the common electrode layer is substantially conformal to the light shielding pattern. The display of claim 2, wherein the at least one light-shielding protrusion comprises a light-shielding pattern sequentially stacked, a common electrode layer, and a blanket The light shielding pattern is disposed between the second substrate and the common electrode layer, and the coating layer is in contact with the display medium. The display of claim 1, wherein the at least one light-shielding protrusion is disposed between the first substrate and the display medium. The display of claim 1, further comprising a color filter film integrated in the pixel array. The display of claim 7, wherein the at least one pixel electrode is disposed on the color filter film. The display device of claim 7, wherein the color filter film comprises a plurality of color filter patterns, and the at least one light-shielding protrusion is formed by at least two overlapping color filter patterns. The display of claim 1, wherein the area on both sides of the at least one light-shielding protrusion is a light-transmitting area. The display device of claim 1, wherein each of the pixel units is electrically connected to a data line and a scan line, and the at least one pixel electrode is spaced from the data line by a horizontal distance without the data line. Overlap, the at least one light-shielding protrusion is located between two adjacent pixel electrodes and partially overlaps two adjacent pixel electrodes. The display of claim 1, wherein the at least one light-shielding protrusion is located between two adjacent second pixel electrodes. The display device of claim 1, wherein each of the pixel units is electrically connected to a second data line, and the first pixel electrode is electrically connected to the first data line, the second pixel The electrode is electrically connected to the second data line, wherein the first data line and the second data line are alternately arranged, and the two adjacent first data lines and the second data line are located adjacent to each other Between the pixel electrodes, the first pixel electrode does not overlap with the first data line and the second data line, and the at least one light-shielding protrusion is further adjacent to the second data line and the second data line Lines overlap. The display device of claim 13, wherein the second pixel electrode partially overlaps the first data line and the second data line, and the at least one light-shielding protrusion is located at two adjacent second pixels. a gap exists between the first data line and the second data line, and the width of the gap, the line width of the first data line and the line width of the second data line are greater than a width of the at least one light-shielding protrusion between the two adjacent second pixel electrodes.