TWI515480B - Display panel and display device - Google Patents

Description

Display panel and display device

The present invention relates to an image display, and more particularly to an image display having a light shielding layer.

Some image displays that are commonly used today, such as liquid crystal displays (LCDs), usually include an image display panel. The image display panel usually includes a color filter substrate and an active device array substrate, and the image display panel is mostly composed of a color filter substrate and an active device array substrate.

The conventional color filter substrate forms a black and white light-shielding layer on the glass substrate, and then forms a color filter between the black light-shielding layers interlaced with each other, and finally covers a flat protective film. Generally, the black light shielding layer and the color filter are both located on the glass substrate, and the black light shielding layer is located between the respective color filters.

Embodiments of the present invention provide a display panel, wherein the first light shielding strip formed can reduce light leakage.

Embodiments of the present invention provide a display panel including a first substrate, a transparent pattern layer, a light shielding layer, and a second substrate. The first substrate has a display area and a non-display area surrounding the display area. The transparent pattern layer is disposed between the first substrate and the second substrate, and at least a portion of the transparent pattern layer is located in the display area, wherein the transparent pattern layer has a plurality of trenches to divide the plurality of transparent layers. The light shielding layer includes a plurality of first light shielding strips, and the first light shielding strips are disposed in the trenches and in the display area. The second substrate is combined with the first substrate.

The embodiment of the invention provides a display device, which includes the foregoing display panel and a backlight module, and the backlight module is disposed on the first substrate and the second substrate. Below.

In summary, the light shielding layer and the transparent pattern layer provided by the embodiments of the present invention define a plurality of trenches through the transparent pattern layer, and the trenches are staggered with each other to divide the transparent pattern layer into a plurality of transparent layers. The trenches expose the intersections of the respective color filters with each other, and the first light-shielding strips and the second light-shielding strips are respectively located within the trenches and between different transparent layers. It should be noted that the light shielding layer and the transparent pattern layer are located on the color filter layer, whereby the distance between the first light shielding strip and the second light shielding strip and the active device array substrate is shortened, thereby reducing the light leakage condition, thereby reducing the large angle color. The probability of occurrence.

In addition, the light shielding layer and the transparent pattern layer may also be located on the active device array substrate. Accordingly, the first light shielding strip and the second light shielding strip not only increase image contrast, but also shield incident light from the backlight module to be active. The array of components reduces the probability of leakage current generated by the active device array and reduces light leakage, thereby reducing the probability of occurrence of large-angle color shift of the left and right azimuth viewing angles.

Further, by controlling the width of the trench between the transparent layers, the widths of the first light-shielding strip and the second light-shielding strip can be reduced, so that the aperture ratio is improved.

In order to further understand the technology, method and effect of the present invention in order to achieve the intended purpose, reference should be made to the detailed description and drawings of the present invention. The drawings and the annexed drawings are intended to be illustrative and not to limit the invention.

1a, 1b, 1c, 2, 3a, 3b, 4‧‧‧ display panels

5‧‧‧Display device

10‧‧‧First substrate

100, 102, 104‧‧‧ color filter substrates

106‧‧‧Looking color filter substrate

110, 120‧‧‧ color filter layer

110a, 110b, 110c, 120a, 120b, 120c‧‧‧ color filters

20‧‧‧second substrate

200, 206‧‧‧ active component array substrate

202, 204‧‧‧Active electroluminescent device array substrate

210‧‧‧Active components

220‧‧‧Information line

230‧‧‧ scan line

240‧‧‧ peripheral lines

250‧‧‧Organic light-emitting element array

30, 32, 34, 36‧‧‧ shading

30a, 32a, 34a‧‧‧ frame type light shielding layer

30b, 32b, 34b, 36b‧‧‧ first shading strip

30c‧‧‧second shading strip

40, 42‧‧‧ transparent pattern layer

40a, 42a‧‧‧ transparent layer

60‧‧‧Adhesive layer

50, 52‧‧‧ fill layer

70‧‧‧Backlight module

Upper part of A1‧‧‧

A2‧‧‧ lower half

BM‧‧‧black layer

M1‧‧‧ display area

M2‧‧‧ non-display area

P1‧‧‧ element pixel area

L1, L2‧‧‧ width

S1, S4‧‧‧ first end face

S2, S3‧‧‧ second end face

1A is a schematic plan view of a display panel according to a first embodiment of the present invention.

1B is a schematic cross-sectional view taken along line R-R of FIG. 1A.

1C is a schematic cross-sectional view taken along line Q-Q of FIG. 1A.

1D is a schematic cross-sectional view of a display panel in accordance with a second embodiment of the present invention.

1E is a schematic cross-sectional view of a display panel according to a third embodiment of the present invention.

2 is a schematic cross-sectional view of a display panel in accordance with a fourth embodiment of the present invention.

3A is a schematic cross-sectional view of a display panel in accordance with a fifth embodiment of the present invention.

3B is a top plan view of a display panel according to a sixth embodiment of the present invention.

4 is a top plan view of a display panel in accordance with a seventh embodiment of the present invention.

Figure 5 is a cross-sectional view showing a display device in accordance with an embodiment of the present invention.

The exemplary embodiments are described with reference to the accompanying drawings, in which FIG. It should be noted that the inventive concept may be embodied in many different forms and should not be construed as being limited to the illustrative embodiments set forth herein. Rather, these exemplary embodiments are provided so that this invention will be in the In each of the figures, the relative proportions of the various layers and regions may be exaggerated, and like numerals indicate the like elements.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various elements, such elements are not limited by the terms. The terms are used to distinguish one element from another, and thus the first element discussed below may be referred to as a second element without departing from the teachings of the inventive concept. In addition, the term "and/or" may be used herein to indicate that it includes all of the associated listed items and all combinations of one or more.

1A is a schematic plan view of a display panel according to a first embodiment of the present invention, FIG. 1B is a cross-sectional view taken along line R-R of FIG. 1A, and FIG. 1C is a cross-sectional view taken along line Q-Q of FIG. 1A. Referring to FIGS. 1A , 1B and 1C , the display panel 1 a includes a first substrate 10 , a second substrate 20 , a light shielding layer 30 , and a transparent pattern layer 40 . The first substrate 10 is coupled to the second substrate 20 , and the light shielding layer 30 and the transparent pattern layer 40 are disposed between the first substrate 10 and the second substrate 20 .

The first substrate 10 has a display area M1 and a non-display area M2 surrounding the display area M1. Generally, the first substrate 10 is a transparent insulating substrate, and the material thereof may be glass, plastic or quartz, and the invention is not limited thereto.

The display panel 1a may further include a color filter layer 110, and the color filter layer 110 may be disposed on the first substrate 10 and located in the display area M1. The color filter layer 110 includes a plurality of color filters 110a, 110b, and 110c of various colors. For example, the colors of the color filters 110a, 110b, and 110c may be red, green, blue, transparent, or black. The color filters 110a, 110b, and 110c are photoresists of respective colors, and the material used may be a color photoresist material. For different product design considerations, the arrangement of the color filters 110a, 110b, and 110c may be mosaic, triangle, straight strip, etc., so the photoresists of the color filters 110a, 110b, and 110c may be The same color can also be different colors. In addition, it should be noted that the color filter layer 110 may also be disposed on the second substrate 20, and the first substrate 10 does not need to be designed with the color filter layer 110. However, the present invention is not limited to the configuration of the color filter layer 110 and the color and material of the color filters 110a, 110b, and 110c.

The light shielding layer 30 is disposed between the first substrate 10 and the second substrate 20 . In detail, the light shielding layer 30 is located on the color filter layer 110 and is in contact with the color filter layer 110. The light shielding layer 30 includes a plurality of juxtaposed first light shielding strips 30b and a plurality of second light shielding strips 30c juxtaposed. The first light-shielding strips 30b and the second light-shielding strips 30c are disposed in the display area M1, and the width L1 of the first light-shielding strips 30b is smaller than the width L2 of the second light-shielding strips 30c. It is worth noting that the width L1 of the first light-shielding strip 30b is mainly less than 10 μm, and the width L1 may be at least between 1 and 2 micrometers (μm). The first light-shielding strips 30b and the second light-shielding strips 30c are interlaced with each other to define a plurality of unit pixel regions P1, and each of the unit pixel regions P1 corresponds to each of the color filters 110a, 110b, and 110c, that is, each The color filters 110a, 110b, and 110c are disposed corresponding to the unit pixel regions P1. In addition, the light shielding layer 30 may further include a frame type light shielding layer 30a disposed in the non-display area M2 and surrounding the color filter layer 110.

The main purpose of the light shielding layer 30 is to shield the light from the backlight module, so that it can be mainly used to prevent the appearance of the image from being affected by the leakage of the incident light and to prevent the light from being illuminated. The action of the false optical switch is caused by the active element. The material used for the light shielding layer 30 may be a black photosensitive resin, a black photoresist material, or the like, and is, for example, a positive black photosensitive resin material or a negative black photosensitive resin material. In practice, for the consideration of process cost, the materials of the frame type light shielding layer 30a, the first light shielding strip 30b, and the second light shielding strip 30c may be different kinds of black photosensitive resin or black photoresist material. However, the present invention does not limit the material of the light shielding layer 30.

The transparent pattern layer 40 has a plurality of trenches that are staggered with each other to divide the transparent pattern layer 40 into a plurality of patterns. The pattern is a plurality of transparent layers 40a, and each transparent layer 40a is disposed in each of the unit pixel regions P1. It should be noted that, in this embodiment, the arrangement of the trenches is staggered in the longitudinal direction and the lateral direction. However, in other embodiments, the trench may also have only a longitudinal or lateral direction. However, the present invention does not limit the shape of the trench.

In the embodiment of the present invention, the transparent pattern layer 40 partially covers the color filter layer 110, and the color filter layer 110 is disposed between the first substrate 10 and the transparent pattern layer 40 and correspondingly located in the unit of the light shielding layer 30. The pixel region P1 is formed to form the color filter substrate 100. Wherein, the trenches expose portions of the color filter layers 110, and further, the trenches expose the intersections of the respective color filters 110a, 110b, and 110c with each other.

It should be noted that the first light-shielding strips 30b and the second light-shielding strips 30c are respectively located in the longitudinal and lateral trenches and are located between different transparent layers 40a, and the widths of the longitudinal and lateral trenches are the first light-shielding strips. The width L1 of 30b and the width L2 of the second light-shielding strip 30c.

The material of the transparent pattern layer 40 may be a transparent photoresist material. As shown in FIG. 1B and FIG. 1C, the cross-sectional shape of the transparent layer 40a may be a trapezoid, and each transparent layer 40a has a first end surface S1 and an opposite first end surface. The second end surface S2 of S1 in which the diameter of each transparent layer 40a is tapered or equal from the direction of the first end surface S1 toward the second end surface S2. However, the present invention does not limit the material and shape of the transparent layer 40a.

The display panel 1a may further include a plurality of data lines 220, a plurality of scan lines 230, and a plurality of active elements 210, wherein the active elements 210 are coupled to the data lines 220 and the scan lines 230, and the plurality of active elements 210 form an active device array. . The data lines 220, the plurality of scan lines 230, and the active device 210 are disposed on the second substrate 20, and the active device 210 is located in the display area M1. The active device array composed of the active elements 210 corresponds to the arrangement formed by the above-described color filters 110a, 110b, and 110c. The peripheral line 240 is disposed in the non-display area M2, and accordingly, an active device array substrate 200 is formed.

The filling layer 50 is disposed in a gap between the first substrate 10 and the second substrate 20 to change the direction of incident light. In this embodiment, the material of the filling layer 50 may be a liquid crystal material, and the liquid crystal material may be of various types, and may be a Nematic Liquid Crystal, a Smectic Liquid Crystal, or a Cholesteric Liquid Crystal ( Cholesteric Liquid Crystal) et al. However, the invention is not limited thereto.

In addition, it is worth noting that the display panel 1a may further include a conductive film (not shown) and an alignment film (not shown). The alignment film has fine grooves and is disposed on both sides of the liquid crystal layer 50 for aligning the direction of the liquid crystal before the electric field is applied. The conductive film is disposed between the alignment film and the first substrate 10 or the second substrate 20 for conducting electricity to control the rotation direction of the liquid crystal. In general, the alignment film is usually a polyimide film, and the conductive film is usually an indium tin oxide film.

The adhesive layer 60 is an adhesive for bonding the first substrate 10 and the second substrate 20. In the embodiment, the adhesive layer 60 is disposed on the non-display area M2 and surrounds the display area M1, and the color filter substrate 100 and the active device array substrate 200 are bonded. Generally, the material of the adhesive layer 60 is mainly an epoxy resin, and the adhesive layer 60 can be distinguished as a thermosetting resin or a photohardening resin in terms of hardening. However, the invention is not limited thereto.

It should be noted that the light shielding layer 30 is located on the color filter layer 110, according to which the first light shielding strip 30b and the second light shielding strip 30c and the active device array substrate 200 are The pitch is shortened, thereby reducing the light leakage situation, thereby reducing the probability of occurrence of a large angle color shift of the upper and lower azimuth angles of view. Further, by controlling the width of the trench, the widths of the first light-blocking strip 30b and the second light-blocking strip 30c can be reduced, and the aperture ratio can be improved.

Specifically, in the present embodiment, the frame type light shielding layer 30a is formed in the non-display area M2 of the first substrate 10, and the material of the frame type light shielding layer 30a is a negative type black photosensitive resin.

The color filter layer 110 is formed on the first substrate 10 and located in the display area M1, and the plurality of color filters 110a, 110b, and 110c of various colors may be arranged in a mosaic, a straight line or a triangle. The present invention is not limited to the arrangement of the color filters of the respective colors.

Next, a transparent photoresist material is overlaid on the color filter layer 110 and the frame type light shielding layer 30a to form a transparent insulating layer. A plurality of longitudinal and lateral grooves interlaced with each other are formed on the transparent insulating layer through the reticle to form a transparent pattern layer 40. That is, the transparent pattern layer 40 divides the plurality of transparent layers 40a, and the longitudinal and lateral trenches are located between the different transparent layers 40a, wherein the trenches expose the respective color filters 110a, 110b, and 110c to each other. At the junction, the cross section of each transparent layer 40a has a trapezoidal shape.

Then, a positive-type black photosensitive resin layer (not shown) is overlaid on the transparent pattern layer 40 so that a part of the positive-type black photosensitive resin material covers the respective transparent layers 40a, and another part of the positive-type black photosensitive resin The material fills the longitudinal and lateral channels. It is to be noted that the thickness of the positive type black photosensitive resin layer is larger than the thickness of the transparent pattern layer 40.

Thereafter, comprehensive exposure is performed to lower the thickness of the positive-type black photosensitive resin layer, thereby forming the first light-blocking strip 30b and the second light-blocking strip 30c. In practice, the thickness of the first light-shielding strip 30b and the second light-shielding strip 30c is substantially slightly lower than the thickness of the transparent pattern layer 40. However, the thickness of the first light-shielding strip 30b and the second light-shielding strip 30c may be flush with the thickness of the transparent pattern layer 40. It should be noted that the width L1 of the first light shielding strip 30b is smaller than the width L2 of the second light shielding strip 30c, and the first The width L1 of the light-shielding strip 30b is mainly less than 10 μm, and the width L1 may be at least between 1 and 2 micrometers (μm).

However, in other embodiments, the transparent insulating layer may also cover only the color filter layer 110 without covering the frame type light shielding layer 30a. Accordingly, in the subsequent process, the positive black photosensitive resin layer is overlaid on the frame type light shielding layer 30a, so that the frame type light shielding layer 30a includes the lower layer of the negative black photosensitive resin material and the upper layer of the positive type black. Photosensitive resin material.

1D is a schematic cross-sectional view of a display panel in accordance with a second embodiment of the present invention. Referring to FIG. 1D, the display panel 1b of the second embodiment of the present invention is similar in structure to the display panel 1a of the first embodiment. For example, the display panels 1a and 1b also include the active device array substrate 200. However, there is still a difference between the display panels 1a and 1b. Only differences between the display panels 1a and 1b will be described below, mainly because the light shielding layer 32 of the second embodiment is different from the light shielding layer 30 of the first embodiment, and the same features of the display panels 1a and 1b are not Repeat the detailed description.

The color filter layer 110 is disposed on the first substrate 10 , and the light shielding layer 32 is disposed between the first substrate 10 and the second substrate 20 . The light shielding layer 32 includes a frame type light shielding layer 32a, a plurality of juxtaposed first light shielding strips 32b and a plurality of juxtaposed second light shielding strips (not shown), and the transparent pattern layer 40 includes a plurality of transparent layers 40a. Specifically, the plurality of juxtaposed first light-blocking strips 32b and the plurality of juxtaposed second light-shielding strips are interlaced with each other to define a plurality of unit pixel regions P1, and the transparent layer 40a is disposed in each of the unit pixel regions P1. The color filter substrate 102 is formed accordingly.

It should be noted that the transparent pattern layer 40 is only distributed on the display area M1, so that the transparent pattern layer 40 is not covered on the frame type light shielding layer 32a, and the thickness of the first light shielding strip 32b and the second light shielding strip is larger than that of the transparent pattern layer 40. thickness.

Specifically, in the second embodiment, the frame type light shielding layer 32a, the color filter layer 110, and the transparent pattern layer 40 are formed on the first substrate 10 in the same manner. The material of the frame type light shielding layer 32a is a negative black photosensitive resin.

Next, a negative black photosensitive resin layer (not shown) is overlaid on the transparent pattern layer 40. And the frame type light shielding layer 32a, so that a part of the negative black photosensitive resin material covers the respective transparent layers 40a and the frame type light shielding layer 32a, and another part of the negative black photosensitive resin material fills the longitudinal direction and Horizontal ditches. It is to be noted that the thickness of the negative black photosensitive resin layer is larger than the thickness of the transparent pattern layer 40.

Then, the non-comprehensive exposure is performed by a gray-tone mask or a half-tone mask, thereby removing the second end surface S2 located on the transparent pattern layer 40. The negative-type black photosensitive resin material lowers the thickness of the negative-type black photosensitive resin layer located in the longitudinal and lateral grooves, thereby forming the first light-blocking strip 32b and the second light-shielding strip. In practice, the thickness of the first light-shielding strip 32b and the second light-shielding strip is substantially slightly higher than the thickness of the transparent pattern layer 40. However, the thickness of the first light-shielding strip 32b and the second light-shielding strip may be flush with the thickness of the transparent pattern layer 40.

1E is a schematic cross-sectional view of a display panel according to a third embodiment of the present invention. Referring to FIG. 1E, the display panel 1c of the third embodiment of the present invention is similar in structure to the display panel 1a of the first embodiment. For example, the display panels 1a and 1c also include the active device array substrate 200. However, there is still a difference between the display panels 1a and 1c. Only the differences between the display panels 1a and 1c will be described below, and the features of the display panels 1a and 1c will not be repeated.

In the third embodiment, the display panel 1c includes a light shielding layer 34, and the light shielding layer 34 includes a plurality of juxtaposed first light shielding strips 34b and a plurality of juxtaposed second light shielding strips (not shown). In detail, as shown in FIG. 1E, the first light shielding strip 34b includes an upper half A1 and a lower half A2. The lower half A2 is located between the color filters 110a, 110b and 110c, and the lower half is A2 extends from the surface of the first substrate 10 to the bottom surface of the transparent pattern layer 40, and the upper half A1 extends from the bottom surface of the transparent pattern layer 40 toward the second substrate 20. Similarly, the transparent pattern layer 40 partially covers the color filter layer 110, and the color filter layer 110 is disposed between the first substrate 10 and the transparent pattern layer 40 and corresponding to the unit pixel region P1 defined by the light shielding layers 34. .

It should be noted that in the third embodiment, the material of the upper half A1 and the lower half are A2 is a black photosensitive resin material of different photosensitive forms. However, in other embodiments, the material of the upper half A1 and the lower half A2 may be black photosensitive resin materials of the same photosensitive type. The present invention does not limit the materials of the upper half A1 and the lower half A2.

Specifically, in the third embodiment, the frame type light shielding layer 34a and the lower half A2 of the first light shielding strip 34b are simultaneously formed. It is to be noted that the material of the frame type light shielding layer 34a and the lower half A2 of the first light shielding strip 34b is a negative black photosensitive resin.

Next, a positive-type black photosensitive resin layer (not shown) is overlaid on the transparent pattern layer 40 and the frame-type light-shielding layer 34a, so that a part of the positive-type black photosensitive resin material covers the respective transparent layers 40a and the frame-type light-shielding layer 34a. Further, another portion of the positive type black photosensitive resin material covers the lower half A2. It is to be noted that the thickness of the positive type black photosensitive resin layer is larger than the thickness of the transparent pattern layer 40.

Thereafter, comprehensive exposure is performed to lower the thickness of the positive-type black photosensitive resin layer, thereby forming the first light-blocking strips 34b and the second light-shielding strips. It is to be noted that the material of the upper half A1 of the first light-shielding strip 34b is a positive-type black photosensitive resin material, and the material of the lower half A2 is a negative-type black photosensitive resin material. In practice, the thickness of the first light-shielding strip 34b and the second light-shielding strip is substantially slightly lower than the thickness of the transparent pattern layer 40.

However, it must be noted that in other embodiments, the material of the upper half A1 of the first light-shielding strip 34b and the material of the lower half A2 may both be negative-type black photosensitive resin materials. In detail, under different process steps, a negative black photosensitive resin layer (not shown) may be overlaid on the transparent pattern layer 40 and the frame type light shielding layer 34a, and the multi-gray mask may be used. Non-integral exposure to remove the negative black photosensitive resin material on the second end face S2 of the transparent pattern layer 40, and to reduce the thickness of the negative black photosensitive resin layer located in the longitudinal and lateral grooves, thereby further The first light blocking strip 34b and the second light blocking strip 34c are formed. In practice, the thickness of the first light-shielding strip 34b and the second light-shielding strip 34c is substantially slightly larger than the thickness of the transparent pattern layer 40.

Further, it is to be noted that the material of the upper half and the lower half of the light shielding layer 34 may be a black photosensitive resin material of a different photosensitive type. However, the present invention does not limit the materials of the upper and lower halves of the light shielding layer 34.

2 is a cross-sectional view of a display panel in accordance with a fourth embodiment of the present invention. Referring to FIG. 2, the display panel 2 of the fourth embodiment of the present invention is similar in structure to the display panel 1b of the second embodiment. For example, the display panels 2 and 1b both include the color filter substrate 102. However, there is still a difference between the display panels 2 and 1b. Only the differences between the display panels 2 and 1b will be described below, and the features of the display panels 2 and 1b will not be repeated.

In the fourth embodiment, the color filter layer 110 is disposed on the first substrate 10 , and the light shielding layer 32 is disposed between the first substrate 10 and the second substrate 20 . It should be noted that, in the fourth embodiment, the display panel 2 is an organic light emitting display (OLED), and thus the display panel 2 is different from the 1b in that the display panel 2 further includes an organic light emitting film layer. 250.

In detail, the display panel 2 includes an organic light-emitting film layer 250 in addition to the plurality of active elements 210, thereby forming the active electroluminescent element array substrate 202. The organic luminescent film layer 250 is electrically connected to the active device array formed by the active device 210. The organic light-emitting film layer 250 includes a first electrode (not shown), an organic light-emitting layer (not shown), and a second electrode (not shown).

It is to be noted that the organic light-emitting film layer 250 may be an array formed of organic light-emitting film layers of different colors, such as red, blue, and green. Or an arrangement formed by a white organic light-emitting film layer. Since the active electroluminescent device array substrate 202 is self-illuminating, the display panel 2 may use only the organic luminescent film layer 250 as incident light under different product considerations.

The filling layer 52 is disposed in a gap between the first substrate 10 and the second substrate 20. In the embodiment, the material of the filling layer 52 may be air, an organic filler or an inorganic filler. However, the material of the filling layer 52 is not limited by the embodiment of the present invention.

3A is a cross-sectional view of a display panel in accordance with a fifth embodiment of the present invention. See 3A, in the fifth embodiment, the light shielding layer 36 is located on the second substrate 20 side and is in contact with the organic light emitting film layer 250. The light shielding layer 36 includes a plurality of juxtaposed first light shielding strips 36b and a plurality of juxtaposed second light shielding strips. (not shown). In detail, the first light-shielding strip 36b is located on the data line 220, and the second light-shielding strip is located on the scan line. However, in other embodiments, the first light-shielding strip 36b may also be located on the scan line, and the second light-shielding strip is located on the data line 220. Therefore, the positions of the first light-shielding strip 36b and the second light-shielding strip in FIG. 3A are only for The illustrations are not intended to limit the invention.

The first light-shielding strips 36b and the second light-shielding strips are interlaced with each other to define a plurality of unit pixel regions P1, and each of the pixel pixel regions P1 respectively corresponds to an active device array formed by the active device 210, that is, each active device 210 is correspondingly arranged in these unit pixel regions P1. It is worth noting that the width L1 of the first light-shielding strip 36b is mainly less than 10 μm, and the width may be at least between 1 and 2 micrometers (μm).

The transparent pattern layer 42 includes a plurality of transparent layers 42a, and each of the transparent layers 42a is disposed in each of the unit pixel regions P1. In detail, the transparent pattern layer 42 has a plurality of longitudinal and lateral trenches, and the trenches are staggered with each other to divide the transparent pattern layer 42 into a plurality of patterns.

The pattern is the transparent layer 42a. The cross-sectional shape of the transparent layer 42a may be a trapezoid, and each transparent layer 42a has a first end surface S4 and a second end surface S3 opposite to the first end surface S4, wherein the diameter of each transparent layer 42a is oriented from the direction of the first end surface S4. The direction of the second end face S3 is tapered or equal. However, the present invention does not limit the material and shape of the transparent layer 42a.

In the fifth embodiment of the present invention, the transparent pattern layer 42 partially covers the organic light-emitting film layer 250, and the active device 210 is disposed between the second substrate 20 and the organic light-emitting film layer 250 and correspondingly located in the unit pixel regions P1. The active electroluminescent element array substrate 204 is formed. Wherein, the trenches expose the intersections of the active elements 210 with each other, and further, the trenches expose the respective data lines 220 and the scan lines. It should be noted that the pattern is a plurality of transparent layers 42a, and the first light-shielding strips 36b and the second light-shielding strips are respectively located in the longitudinal and lateral trenches and are located Between the different transparent layers 42a, the widths of the longitudinal and lateral grooves are the width of the first light-shielding strip 36b and the width of the second light-shielding strip.

It should be noted that, since the light shielding layer 36 is located on the side of the active electroluminescent device array substrate 204, that is, above the data line 220 and the scanning line, the first light shielding strip 36b and the second light shielding strip not only increase image contrast, but also The light from the organic light-emitting film layer 250 is shielded from the active device array to reduce the probability of leakage current generated by the active device array and to reduce light leakage, thereby reducing the probability of occurrence of left and right large-view characters.

Further, by controlling the width of the trench, the widths of the first light-blocking strip 36b and the second light-shielding strip can be reduced, so that the aperture ratio is improved. In the fifth embodiment, the first light-shielding strips 36b, the second light-shielding strips, and the black-grain layer BM may be black photosensitive resin materials of the same photosensitive type according to different process requirements, and may also be different photosensitive patterns. Black photosensitive resin material. It should be noted that the order and method of making the first light-shielding strip 36b, the second light-shielding strip, and the black-grain layer BM can be adjusted and changed according to different process requirements. The present invention does not limit the structure and fabrication of the light shielding layer 36.

The display panel 3a may further include a conventional color filter substrate 106. The conventional color filter substrate 106 includes a color filter layer 120, and the color filter layer 120 is located in the display region M1. The color filter layer 120 includes a plurality of color filters 120a, 120b, and 120c of various colors and a black layer BM. However, the present invention does not limit the structure of the conventional color filter substrate 106.

3B is a cross-sectional view of a display panel according to a sixth embodiment of the present invention. Referring to FIG. 3B, the display panel 3b of the sixth embodiment of the present invention is similar in structure to the display panel 3a of the fifth embodiment. For example, the display panels 3b and 3a also include the conventional color filter substrate 106. However, there is still a difference between the display panels 3b and 3a. Only the differences between the display panels 3b and 3a will be described below, mainly because the display panel 3b of the sixth embodiment is a liquid crystal display panel, and the same features of the display panels 3b and 3a will not be described in detail.

In the sixth embodiment, the light shielding layer 36 is located on the side of the active device array substrate 206 and is in contact with the data line 220 and the scanning line. The light shielding layer 36 includes a plurality of juxtaposed first light shielding strips 36b and a plurality of juxtaposed second light shielding strips. In detail, the first light-shielding strip 36b is located on the data line 220, and the second light-shielding strip (not shown) is located on the scan line. However, the positions of the first light-shielding strips 36b and the second light-shielding strips are for illustrative purposes only and are not intended to limit the invention.

The transparent pattern layer 42 partially covers the active elements 210, and the active elements 210 are disposed between the second substrate 20 and the transparent pattern layer 42 and correspondingly located in the unit pixel regions P1, thereby forming the active device array substrate 206. Wherein, the trenches expose the intersections of the active elements 210 with each other, and further, the trenches expose the respective data lines 220 and the scan lines. It should be noted that the pattern is a plurality of transparent layers 42a, and the first light-shielding strips 36b and the second light-shielding strips are respectively located in the longitudinal and lateral trenches and are located between different transparent layers 42a, and the longitudinal direction is The width of the lateral trench is the width of the first light-shielding strip 36b and the width of the second light-shielding strip.

It should be noted that, since the light shielding layer 36 is located on the active device array substrate 206 side, that is, above the data line 220 and the scan line, the first light shielding strip 36b and the second light shielding strip not only increase the image contrast, but also can be shielded from the image. The incident light of the backlight module is irradiated to the active device array to reduce the probability of leakage current generated by the active device array and reduce the light leakage, thereby reducing the probability of occurrence of left and right large-view characters.

4 is a cross-sectional view showing a display panel of a seventh embodiment of the present invention. Referring to FIG. 4 , the display panel 4 of the seventh embodiment of the present invention includes a color filter substrate 100 , an active device array substrate 206 , a light shielding layer 36 , and a transparent pattern layer 42 . The color filter substrate 100 is coupled to the active device array substrate 206, and the light shielding layer 36 and the transparent pattern layer 42 are disposed between the color filter substrate 100 and the active device array substrate 206.

In view of the above, the display panel 4 of the seventh embodiment of the present invention is similar in structure to the display panel 1a of the first embodiment and the display panel 3b of the sixth embodiment. Detailed The display panels 4 and 1a all include the color filter substrate 100, and the display panels 4 and 3b also include the active device array substrate 206, the light shielding layer 36, and the transparent pattern layer 42. It should be noted that, according to the above description, the display panel of the present invention can have a combination of different related designs according to different product designs without departing from the spirit of the present invention.

Figure 5 is a cross-sectional view showing a display device in accordance with an embodiment of the present invention. Referring to FIG. 5 , the display device 5 includes a display panel 1 a and a backlight module 70 . The backlight module 70 is disposed under the first substrate 10 and the second substrate 20 .

The backlight module 70 is used to provide a sufficient and uniform light source for the display panel 1. The backlight module 70 can be a side type backlight module, a direct type back light module, or the like. The illumination source of the backlight module 70 may be a cold cathode fluorescent tube or a light emitting diode. The type of the backlight module 70 is for illustrative purposes only and is not intended to limit the present invention.

In summary, the light shielding layer and the transparent pattern layer provided by the embodiments of the present invention define a plurality of trenches through the transparent pattern layer, and the trenches are staggered with each other to divide the transparent pattern layer into a plurality of transparent layers. The trenches expose the intersections of the respective color filters with each other, and the first light-shielding strips and the second light-shielding strips are respectively located within the trenches and between different transparent layers. It should be noted that the light shielding layer and the transparent pattern layer are located on the color filter layer, whereby the distance between the first light shielding strip and the second light shielding strip and the active device array substrate is shortened, thereby reducing the light leakage condition, thereby reducing the vertical and horizontal azimuth angles. The probability of a large angle color shift occurs.

In addition, the light shielding layer and the transparent pattern layer may also be located on the active device array substrate. Accordingly, the first light shielding strip and the second light shielding strip not only increase image contrast, but also shield incident light or organic light from the backlight module. The light of the film layer is irradiated to the active device array to reduce the probability of leakage current generated by the active device array and reduce the light leakage, thereby reducing the probability of occurrence of large-angle color shift of the left and right azimuth viewing angles.

It is worth noting that, in general, the conventional black shading layer is formed in crisscross In the process, the black light-shielding material is first set on the glass substrate. However, in the development process, if the shape of the conventional black light-shielding layer formed is too small, the probability of the Matrix Pattern defect is easily increased. However, the present invention forms a plurality of criss-crossed trenches through the transparent pattern layer, thereby facilitating the improvement of the aspect ratio of the trenches, thereby controlling the widths of the first light-shielding strips and the second light-shielding strips located in the trenches. Therefore, by controlling the width of the trench between the transparent layers, the widths of the first light-shielding strip and the second light-shielding strip can be reduced, and the aperture ratio can be improved.

The invention can be applied to a variety of different display devices. According to the above description, the display device of the present invention can be configured with different backlight modules. However, in other embodiments of the invention, the display device can be designed according to the requirements of the product, and thus the present invention does not limit the type of the display.

The above is only an embodiment of the present invention, and is not intended to limit the scope of the invention. It is still within the scope of patent protection of the present invention to make any substitutions and modifications of the modifications made by those skilled in the art without departing from the spirit and scope of the invention.

1a‧‧‧ display panel

10‧‧‧First substrate

100‧‧‧Color filter substrate

110‧‧‧Color filter layer

110a, 110b, 110c‧‧‧ color filters

20‧‧‧second substrate

200‧‧‧Active component array substrate

210‧‧‧Active components

220‧‧‧Information line

240‧‧‧ peripheral lines

30‧‧‧Lighting layer

30a‧‧‧Frame type shading

30b‧‧‧First shading strip

40‧‧‧Transparent pattern layer

40a‧‧‧Transparent layer

60‧‧‧Adhesive layer

50‧‧‧fill layer

M1‧‧‧ display area

M2‧‧‧ non-display area

S1‧‧‧ first end face

S2‧‧‧ second end face

Claims (10)

A display panel includes: a first substrate having a display area and a non-display area surrounding the display area; a second substrate coupled to the first substrate; a transparent pattern layer disposed on the transparent pattern layer Between the first substrate and the second substrate, and at least a portion of the transparent pattern layer is located in the display area, wherein the transparent pattern layer has a plurality of trenches to divide the transparent pattern layer into at least two transparent layers separated from each other And a light shielding layer, the light shielding layer includes a plurality of first light shielding strips, and the first light shielding strips are disposed in the plurality of light shielding strips. The display panel of claim 1, wherein the light shielding layer further comprises a plurality of second light shielding strips, wherein the first light shielding strips and the second light shielding strips are disposed in the trenches and are interlaced with each other. Divide multiple cell pixel regions. The display panel of claim 1, wherein the transparent layer has a first end surface and a second end surface opposite to the first end surface, wherein a width of each of the transparent layers perpendicular to the trench is from the first The direction of one end face is tapered toward the direction of the second end face. The display panel of claim 1, wherein the display panel further comprises a color filter layer, the color filter layer comprises a plurality of color filters, and the transparent pattern layer partially covers the color filter layer And the color filter layer is disposed between the first substrate and the light shielding layer. The display panel of claim 1, wherein the light shielding layer further comprises a frame type light shielding layer, and the frame type light shielding layer is disposed in the non-display area. The display panel of claim 4, wherein the first light shielding strip comprises an upper half and a lower half, the lower half being located between the color filters, and the lower half is a surface of the first substrate extends to a bottom surface of the transparent pattern layer, and the upper portion extends from a bottom surface of the transparent pattern layer toward the second substrate Stretch. The display panel of claim 6, wherein the material of the upper half is different from the material of the lower half. The display panel of claim 1, wherein the display panel further comprises a plurality of data lines, a plurality of scan lines, and a plurality of active components, wherein the active components are coupled to the data lines and the scan lines. The plurality of data lines, the plurality of scan lines, and the active elements are disposed on the second substrate to form an active device array, and the active elements are disposed in the display area. The display panel of claim 8, wherein the transparent pattern layer partially covers the active components, and the active components are disposed under the transparent layer, and the trenches are parallel to the data lines. A display device comprising: a display panel comprising a first substrate having a display area and a non-display area surrounding the display area; a second substrate coupled to the first substrate; a transparent pattern layer, the transparent The pattern layer is disposed between the first substrate and the second substrate, and at least a portion of the transparent pattern layer is located in the display area, wherein the transparent pattern layer has a plurality of trenches to divide the transparent pattern layer into at least two a transparent layer that is separated from each other; and a light shielding layer, the light shielding layer includes a plurality of first light shielding strips, wherein the first light shielding strips are disposed in the plurality of light barriers; and a backlight module, wherein the backlight module is disposed in the first A substrate and a lower portion of the second substrate.