CN110910770A - Display panel and display device - Google Patents
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- CN110910770A CN110910770A CN201911207048.9A CN201911207048A CN110910770A CN 110910770 A CN110910770 A CN 110910770A CN 201911207048 A CN201911207048 A CN 201911207048A CN 110910770 A CN110910770 A CN 110910770A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1248—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition or shape of the interlayer dielectric specially adapted to the circuit arrangement
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1259—Multistep manufacturing methods
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Abstract
The embodiment of the invention provides a display panel and a display device, relates to the technical field of display, and aims to reduce the influence of a shading layer on light emitting at a large viewing angle. The display panel includes: the array substrate comprises a first substrate, a pixel circuit layer and a light-emitting device layer; a display region and a non-display region surrounding the display region, the display region including a light emitting portion and a non-light emitting portion; the touch metal wire is positioned on the non-light-emitting part; the filter layer is positioned on one side, back to the first substrate, of the light-emitting device layer and comprises a plurality of color resistors and a plurality of light shading layers; the shading layer is located on the non-light emitting portion and comprises a first shading layer and a second shading layer, the first shading layer is located on one side, back to the first substrate, of the second shading layer, the touch metal wires are located between the first shading layer and the second shading layer, the width of the first shading layer in the direction perpendicular to the extending direction of the first shading layer is L1, the width of the second shading layer in the direction perpendicular to the extending direction of the second shading layer is L2, and L1 is smaller than L2.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a display panel and a display device.
[ background of the invention ]
A plurality of metal wires such as touch metal wires are arranged in the display panel, and a polaroid structure is further arranged in the display panel for reducing the reflectivity of the screen. However, since the polarizer is brittle, when the display panel is bent, the polarizer is easily creased or even broken. For this reason, in the prior art, a filter layer is generally used instead of a polarizer. As shown in fig. 1, fig. 1 is a schematic diagram of a film layer structure of a display panel in the prior art, where a filter layer 1 'includes a color resistor 2' and a light shielding layer 3 ', where the color resistor 2' is used to filter light having a color different from that of the color of the light in the external environment, so as to perform a filtering function, and the light shielding layer 3 'is used to shield a metal trace of a non-light-emitting portion, such as a touch metal line 4', so as to prevent the metal trace from being visible to human eyes.
However, with this arrangement, the light shielding layer 3' can shield the light emitted from the lower portion of the large viewing angle, which affects the light emission from the large viewing angle.
[ summary of the invention ]
In view of this, embodiments of the present invention provide a display panel and a display device, which reduce the influence of a light-shielding layer on light emitted from a large viewing angle.
In one aspect, an embodiment of the present invention provides a display panel, including:
the array substrate comprises a first substrate, and a pixel circuit layer and a light-emitting device layer which are stacked on the first substrate;
a display region and a non-display region surrounding the display region, the display region including a light emitting portion and a non-light emitting portion;
the touch metal wire is positioned on the non-luminous part and used for detecting a touch position;
the filter layer is positioned on one side, opposite to the first substrate, of the light-emitting device layer and comprises a plurality of color resistors and a plurality of light shading layers;
wherein, in the direction perpendicular to the plane of the first substrate, the color of the color resistance is the same as the color of the light emitted by the light-emitting device layer overlapped with the color resistance; the light shielding layers are located on the non-light emitting portion and comprise a first light shielding layer and a second light shielding layer, the first light shielding layer is located on one side, facing away from the first substrate, of the second light shielding layer, the touch metal wires are located between the first light shielding layer and the second light shielding layer, the width of the first light shielding layer in the direction perpendicular to the extending direction of the first light shielding layer is L1, the width of the second light shielding layer in the direction perpendicular to the extending direction of the second light shielding layer is L2, and L1 is less than L2.
On the other hand, the embodiment of the invention also provides a display device which comprises the display panel. One of the above technical solutions has the following beneficial effects:
in the technical solution provided in the embodiment of the present invention, the light shielding layer in the filter layer adopts a double-layer light shielding structure: the light shield layer includes first light shield layer and second light shield layer, wherein, first light shield layer is used for sheltering from the touch-control metal wire that is located between first light shield layer and the second light shield layer, avoid external environment light to be reflected to people's eye by touch-control metal wire, the second light shield layer is used for sheltering from the slant light that jets out to the luminescent device layer on the one hand, avoid slant light to jet out the colour mixture phenomenon that leads to via the colour drag that adjacent luminescent device layer corresponds, on the other hand, still be used for sheltering from non-luminous portion, avoid external environment light to be walked the line reflection to people's eye by the metal in the array substrate, thereby effectively reduce screen reflectivity. Further, based on the relative position relationship of the first light shielding layer and the second light shielding layer, the first light shielding layer is located on one side of the second light shielding layer far away from the light emitting device layer, the width L1 of the first light shielding layer is smaller than the width L2 of the second light shielding layer, the first light shielding layer can be prevented from shielding light rays with a large viewing angle, and the second light shielding layer is closer to the light emitting device layer, so that the width L2 of the second light shielding layer can be set to be larger under the condition of the same brightness of the viewing angle, and the screen reflectivity is further reduced.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a film layer structure of a display panel in the prior art;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A1-A2 of FIG. 2;
FIG. 4 is another cross-sectional view taken along line A1-A2 of FIG. 2;
fig. 5 is a schematic diagram of a film structure of a display panel according to an embodiment of the invention;
fig. 6 is a schematic view of another film structure of a display panel according to an embodiment of the invention;
fig. 7 is a schematic structural diagram of a display panel according to an embodiment of the invention;
FIG. 8 is a schematic structural diagram of a barrier layer according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram corresponding to a process flow for forming a barrier layer according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that although the terms first, second, and third may be used to describe the light-shielding layers in the embodiments of the present invention, the light-shielding layers should not be limited to these terms. These terms are only used to distinguish the light-shielding layers from each other. For example, the first light-shielding layer may also be referred to as a second light-shielding layer, and similarly, the second light-shielding layer may also be referred to as a first light-shielding layer, without departing from the scope of the embodiments of the present invention.
An embodiment of the present invention provides a display panel, as shown in fig. 2 and fig. 3, fig. 2 is a schematic structural diagram of the display panel provided in the embodiment of the present invention, and fig. 3 is a cross-sectional view of fig. 2 along a direction a1-a2, where the display panel includes: the array substrate 1, the array substrate 1 includes the first substrate 2, and pixel circuit layer 3 and luminescent device layer 4 that stack up and set up on the first substrate 2; a display area 5 and a non-display area 6 surrounding the display area 5, the display area 5 including a light emitting portion 7 and a non-light emitting portion 8; the touch metal line 9 is located at the non-light emitting portion 8, and the touch metal line 9 is used for detecting a touch position, specifically, the touch metal line 9 refers to a metal line for detecting the touch position, and may specifically refer to a metal trace forming a touch electrode or a metal trace forming a touch signal transmission line.
In addition, the display panel further includes a filter layer 10, the filter layer 10 is located on a side of the light-emitting device layer 4 opposite to the first substrate 2, and the filter layer 10 includes a plurality of color resists 11 and a plurality of light-shielding layers 12; the color resistor 11 is used for filtering light with a color different from that of the light itself in the external environment light, so as to play a role of filtering light, meanwhile, the filter layer 10 replaces a polarizer in the prior art to improve the anti-reflection capability of the display panel, the thickness of the display panel is reduced, and in the direction perpendicular to the plane of the first substrate 2, the color of the color resistor 11 is the same as the color of the light emitted by the light emitting device layer 4 overlapped with the color resistor, so as to avoid mixed light; the light shielding layer 12 is located on the non-light emitting portion 8, the light shielding layer 12 includes a first light shielding layer 13 and a second light shielding layer 14, the first light shielding layer 13 is located on a side of the second light shielding layer 14 opposite to the first substrate 2, the touch metal wire 9 is located between the first light shielding layer 13 and the second light shielding layer 14, a width of the first light shielding layer 13 perpendicular to an extending direction thereof is L1, a width of the second light shielding layer 14 perpendicular to the extending direction thereof is L2, wherein L1 < L2.
First, referring to fig. 3 again, the pixel circuit layer 3 includes an active layer 15, a gate layer 16 and a source-drain layer 17 which are stacked, the light-emitting device layer 4 includes an anode layer 18, a light-emitting layer 19 and a cathode layer 20 which are stacked, electrons and holes are injected into the light-emitting layer 19 from the cathode layer 20 and the anode layer 18, respectively, excitons are formed in the light-emitting layer 19 and light-emitting molecules are excited, so that the light-emitting layer 19 emits visible light, and the "light-emitting portion 7" refers to a region where the light-emitting layer 19 is located.
In the display panel provided in the embodiment of the present invention, the light shielding layer 12 in the filter layer 10 adopts a double-layer light shielding structure: the light shielding layer 12 includes a first light shielding layer 13 and a second light shielding layer 14, wherein the first light shielding layer 13 is used for shielding the touch metal wire 9 between the first light shielding layer 13 and the second light shielding layer 14, and prevent the external environment light from being reflected to human eyes by the touch metal wire 9, the second light shielding layer 14 is used for shielding the oblique light emitted from the light emitting device layer 4 on the one hand, and prevent the oblique light from emitting to human eyes via the color resistors 11 corresponding to the adjacent light emitting device layer 4, on the other hand, the light shielding layer is further used for shielding the non-light emitting portion 8, and prevent the external environment light from being reflected to human eyes by the metal wires in the array substrate 1, thereby effectively reducing the screen reflectivity. Further, based on the relative position relationship between the first light shielding layer 13 and the second light shielding layer 14, the first light shielding layer 13 is located on the side of the second light shielding layer 14 away from the light emitting device layer 4, and by making the width L1 of the first light shielding layer 13 smaller than the width L2 of the second light shielding layer 14, the first light shielding layer 13 can be prevented from shielding the light with a large viewing angle, and because the second light shielding layer 14 is closer to the light emitting device layer 4, the width L2 of the second light shielding layer 14 can be set larger under the condition that the viewing angle brightness is the same, so as to further reduce the screen reflectivity.
Therefore, by adopting the display panel provided by the embodiment of the invention, the shielding of the light shielding layer 12 on the light with a large viewing angle is effectively reduced, the emergent light brightness in a large viewing angle range is improved, the reflectivity of the screen can be further reduced, and the metal routing in the display panel is prevented from being visible to human eyes to a greater extent.
Optionally, referring to fig. 3 again, the orthographic projection of the color resistor 11 on the first plane covers the orthographic projection of the touch metal line 9 on the first plane, the first plane is perpendicular to the plane of the substrate, and the extending direction of the first plane is parallel to the extending direction of the light shielding layer 12.
Compared with the prior art in which the touch metal wire and the filter layer are arranged in different layers, and the touch metal wire is arranged on the side of the filter layer opposite to the light-emitting surface, in the embodiment of the invention, by adopting the arrangement mode, on one hand, the touch metal wire 9 does not need to occupy extra film thickness, so that the overall thickness of the display panel is effectively reduced, and on the other hand, the second light shielding layer 14 is further arranged between the touch metal wire 9 and the array substrate 1 at intervals, so that the distance between the touch metal wire 9 and the conductive film layers (such as the gate layer, the source drain electrode layer, the anode layer and the cathode layer) in the array substrate 1 is increased, thereby reducing the parasitic capacitance between the touch metal wire 9 and the conductive film layers, and effectively improving the transmission.
Alternatively, referring again to FIG. 3, the size of the non-light emitting portion 8 in the width direction of the second light shielding layer 14 is L3, L3 ≧ L2; the width of the touch metal wire 9 in the direction perpendicular to the extending direction is L4, and L1 is more than or equal to L4. The L3 is more than or equal to the L4, so that the overlarge coverage area of the second light shielding layer 14 can be avoided, and the influence on the normal light emission of the light emitting part 7 is avoided; the L1 is greater than or equal to L4, that is, the orthographic projection of the first light shielding layer 13 on the first substrate 2 covers the orthographic projection of the touch metal line 9 on the first substrate 2, so that the first light shielding layer 13 can completely cover the touch metal line 9, and the touch metal line 9 is effectively prevented from being visible to human eyes.
Further, L3/L2 ═ L2/L4, i.e., L22By the arrangement, on the premise that the size L3 of the non-light emitting portion 8 and the width L4 of the touch metal line 9 are determined, the width L2 of the second light shielding layer 14 can be increased as much as possible, on the premise that the second light shielding layer 14 does not influence light emission at a large viewing angle, the coverage area of the second light shielding layer 14 is increased, and the screen reflectivity is further improved.
Optionally, the orthographic projection of the first light shielding layer 13 on the substrate is overlapped with the geometric center of the orthographic projection of the second light shielding layer 14 overlapped with the first light shielding layer 13 on the substrate, so as to ensure that the distance between the first light shielding layer 13 and two adjacent light emitting device layers 4 is close, and further ensure that the first light shielding layer 13 is prevented from influencing the large-viewing-angle light emission of the two adjacent light emitting device layers 4.
Alternatively, as shown in fig. 4, fig. 4 is another cross-sectional view taken along a1-a2 direction in fig. 2, and the light-shielding layer 12 further includes a third light-shielding layer 21, where the third light-shielding layer 21 covers a side surface of the touch metal line 9, the side surface being a surface parallel to the extending direction of the touch metal line 9 and intersecting with the first substrate 2, that is, the extending direction of the side surface in the touch metal line 9 intersects with the first substrate 2. After the third light shielding layer 21 is arranged, the third light shielding layer 21 can shield the side surface of the touch metal wire 9, so that external environment light is prevented from being reflected to human eyes by the side surface of the touch metal wire 9, and the reflectivity of the screen is further reduced.
Further, the third light shielding layer 21 and the first light shielding layer 13 are formed by the same patterning process, and the third light shielding layer 21 is inclined toward the geometric center of the first light shielding layer 13 along the direction in which the second light shielding layer 14 faces the first light shielding layer 13. So set up, third light shield layer 21 need not to adopt extra composition technology to form, has reduced process flow and will have reduced the cost of manufacture, moreover, makes the slope of third light shield layer 21 set up, when guaranteeing that third light shield layer 21 covers the side of touch-control metal wire 9, can also reduce the width of first light shield layer 13 to further avoid the sheltering from of first light shield layer 13 to the light-emitting of big visual angle.
Optionally, as shown in fig. 5, fig. 5 is a schematic diagram of a film structure of the display panel provided in the embodiment of the present invention, the display panel further includes a packaging layer 22, and the packaging layer 22 is located on a side of the light emitting device layer 4 opposite to the first substrate 2, so as to prevent external water and oxygen from invading into the array substrate 1 to affect the light emitting device layer 4 and the pixel circuit layer 3, improve the working stability of the light emitting device layer 4 and the pixel circuit layer 3, and further improve the light emitting stability of the display panel.
Optionally, referring to fig. 5 again, the filter layer 10 is located on the surface of the encapsulation layer 22 opposite to the first substrate 2, that is, after the encapsulation layer 22 is formed on the side of the light emitting device layer 4 facing the light emitting surface, the filter layer 10 is directly formed on the surface of the encapsulation layer 22.
At this time, the specific manufacturing process flow of the display panel is as follows:
step S1: a pixel circuit layer 3 and a light emitting device layer 4 are formed on a first substrate 2 to form an array substrate 1.
Step S2: an encapsulation layer 22 is formed on the side of the light-emitting device layer 4 facing away from the first substrate 2.
Step S3: a second light-shielding layer 14 is formed on the surface of the encapsulation layer 22 opposite to the first substrate 2, a touch metal line 9 is formed on the side of the second light-shielding layer 14 opposite to the first substrate 2, a first light-shielding layer 13 and a third light-shielding layer 21 are formed on the side of the touch metal line 9 opposite to the first substrate 2, and a color resist 11 is formed on the side of the first light-shielding layer 13 and the third light-shielding layer 21 opposite to the first substrate 2.
Step S4: an optical glue 33 is formed on the side of the color resists 11 facing away from the first substrate 2 to ensure that the display panel has a flat surface.
Alternatively, as shown in fig. 6, fig. 6 is another schematic diagram of a film structure of the display panel provided in the embodiment of the present invention, where the display panel further includes a liquid adhesive 23 and a second substrate 24; the liquid adhesive 23 is attached to the surface of the encapsulation layer 22 opposite to the first substrate 2, the filter layer 10 and the touch metal line 9 are located on one side of the liquid adhesive 23 opposite to the first substrate 2, and the second substrate 24 is located on one side of the filter layer 10 and the touch metal line 9 opposite to the first substrate 2, where the second substrate 24, the filter layer 10 and the touch metal line 9 form a color film substrate 34 paired with the array substrate 1, the color film substrate 34 is attached to the array substrate 1 through the liquid adhesive 23, and it should be noted that the second substrate 24 is a light-transmitting substrate.
At this time, the specific manufacturing process flow of the display panel is as follows:
step K1: a pixel circuit layer 3 and a light emitting device layer 4 are formed on a first substrate 2 to form an array substrate 1.
Step K2: the color filter substrate 34 is formed by etching the color filter 11 on the second substrate 24 to form a groove, forming a first light shielding layer 13 and a third light shielding layer 21 in the groove, forming a touch metal line 9 on one side of the first light shielding layer 13 opposite to the second substrate 24, and forming a second light shielding layer 14 on one side of the touch metal line 9 opposite to the second substrate 24.
Step K3: an encapsulation layer 22 is formed on the array substrate 1.
Step K4: a layer of liquid adhesive 23 is attached to the encapsulation layer 22, and the color film substrate 34 is attached to the array substrate 1.
Optionally, as shown in fig. 7 and fig. 8, fig. 7 is a schematic structural diagram of a display panel provided in an embodiment of the present invention, fig. 8 is a schematic structural diagram of a barrier layer provided in an embodiment of the present invention, the non-display area 6 includes a first non-display area 25, and a chip bonding area 26 is disposed on a side of the first non-display area 25 away from the display area 5; the display panel further comprises a barrier layer 27, the barrier layer 27 is located in the first non-display area 25, and the liquid adhesive 23 is located on a side of the barrier layer 27 facing the display area 5. By arranging the barrier layer 27 in the first non-display area 25, the liquid adhesive 23 can be blocked by the barrier layer 27, and the liquid adhesive is prevented from further overflowing to the chip binding area 26 to influence the pins in the chip binding area 26, so that poor contact and other problems are avoided.
Further, referring again to fig. 8, the barrier layer 27 includes a planarization layer 28 and a light-to-heat conversion layer 29, and the light-to-heat conversion layer 29 is located on a side of the planarization layer 28 facing away from the first substrate 2. Specifically, referring to fig. 9, fig. 9 is a schematic structural diagram corresponding to the process flow for forming the barrier layer according to the embodiment of the present invention, and the process flow for forming the barrier layer 27 is as follows:
step H1: a planarization layer 28 is formed in the first non-display region 25.
Step H2: the encapsulation layer 22 is formed on the side of the light emitting device layer 4 facing away from the first substrate 2, and the photothermal conversion layer 29 is formed on the side of the planarization layer 28 facing away from the first substrate 2.
Step H3: the photo-thermal conversion layer 29 is irradiated with laser light to increase the height of expansion.
Step H4: the liquid adhesive 23 is attached, and the light-to-heat conversion layer 29 is used to block the liquid adhesive 23 and prevent the liquid adhesive from overflowing to the chip bonding region 26.
Adopt light-to-heat conversion layer 29 to form barrier layer 27, based on the characteristic that light-to-heat conversion layer 29 is heated and expanded, before light-to-heat conversion layer 29 is heated and expanded, light-to-heat conversion layer 29's height is less, has avoided light-to-heat conversion layer 29 to influence the manufacturing process of array substrate 1 and encapsulation layer 22, and after light-to-heat conversion layer 29 is heated and expanded, light-to-heat conversion layer 29's height is great, can effectively block liquid laminating glue 23, avoids it to spill over to chip binding region 26.
Optionally, referring to fig. 5 again, the touch metal line 9 includes a driving electrode metal line 30 and a sensing electrode metal line 31, the driving electrode metal line 30 and the sensing electrode metal line 31 are disposed in different layers, an insulating layer 32 is disposed between the driving electrode metal line 30 and the sensing electrode metal line 31, and the driving electrode metal line 30 and the sensing electrode metal line 31 are electrically connected through a via hole in the insulating layer 32. A coupling capacitor is formed between the driving electrode metal wire 30 and the sensing electrode metal wire 31, and when a finger touches the display screen, the capacitance of the coupling capacitor between the driving electrode metal wire 30 and the sensing electrode metal wire 31 at the touch position changes, so that the touch position is detected according to the variation of the coupling capacitor.
Optionally, the display panel is a flexible display panel, and after the filter layer 10 is used to replace a polarizer with a brittle texture, since the filter layer 10 is an organic film layer with a small thickness, the filter layer 10 has a good bending resistance, and when the display panel is bent or folded, the filter layer 10 is not easily broken, so that the bending resistance of the display panel is improved, and the reliability of the filter layer 10 in effectively reducing the reflectivity of the screen is improved.
As shown in fig. 10, fig. 10 is a schematic structural diagram of a display device according to an embodiment of the present invention, and the display device includes the display panel 100. The specific structure of the display panel 100 has been described in detail in the above embodiments, and is not described herein again. Of course, the display device shown in fig. 10 is only a schematic illustration, and the display device may be any electronic device with a display function, such as a mobile phone, a tablet computer, a notebook computer, an electronic book, or a television.
Since the display device provided by the embodiment of the present invention includes the display panel 100 described above, with this display device, by using the light shielding layer 12 in the filter layer 10 in the double-layer light shielding structure and setting the width L1 of the first light shielding layer 13 far away from the light emitting device layer 4 to be smaller than the width L2 of the second light shielding layer 14 close to the light emitting device layer 4, it is possible to avoid the first light shielding layer 13 from shielding the light emitted from the light emitting device layer 4 at a large viewing angle, and increase the width L2 of the second light shielding layer 14 under the condition that the viewing angle brightness is the same, thereby further reducing the screen reflectance.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (15)
1. A display panel, comprising:
the array substrate comprises a first substrate, and a pixel circuit layer and a light-emitting device layer which are stacked on the first substrate;
a display region and a non-display region surrounding the display region, the display region including a light emitting portion and a non-light emitting portion;
the touch metal wire is positioned on the non-luminous part and used for detecting a touch position;
the filter layer is positioned on one side, opposite to the first substrate, of the light-emitting device layer and comprises a plurality of color resistors and a plurality of light shading layers;
wherein, in the direction perpendicular to the plane of the first substrate, the color of the color resistance is the same as the color of the light emitted by the light-emitting device layer overlapped with the color resistance; the light shielding layers are located on the non-light emitting portion and comprise a first light shielding layer and a second light shielding layer, the first light shielding layer is located on one side, facing away from the first substrate, of the second light shielding layer, the touch metal wires are located between the first light shielding layer and the second light shielding layer, the width of the first light shielding layer in the direction perpendicular to the extending direction of the first light shielding layer is L1, the width of the second light shielding layer in the direction perpendicular to the extending direction of the second light shielding layer is L2, and L1 is less than L2.
2. The display panel according to claim 1, wherein an orthogonal projection of the color resists on a first plane covers an orthogonal projection of the touch metal lines on the first plane, the first plane is perpendicular to a plane of the substrate, and an extending direction of the first plane is parallel to an extending direction of the light shielding layer.
3. The display panel according to claim 1,
a size of the non-light emitting portion in the width direction of the second light shielding layer is L3, L3 is not less than L2;
the width of the touch metal wire in the direction perpendicular to the extending direction of the touch metal wire is L4, and L1 is more than or equal to L4.
4. The display panel according to claim 3,
L3/L2＝L2/L4。
5. the display panel according to claim 1, wherein an orthogonal projection of the first light shielding layer on the substrate coincides with a geometric center of an orthogonal projection of the second light shielding layer overlapping the first light shielding layer on the substrate.
6. The display panel according to claim 1,
the light shielding layer further comprises a third light shielding layer, the third light shielding layer covers the side face of the touch metal wire, and the side face is parallel to the surface, intersecting with the first substrate, of the extending direction in the touch metal wire.
7. The display panel according to claim 6,
the third light shielding layer and the first light shielding layer are formed by adopting the same composition process, and the third light shielding layer inclines towards the geometric center of the first light shielding layer along the direction of the second light shielding layer towards the first light shielding layer.
8. The display panel according to claim 1,
the display panel further comprises an encapsulation layer, and the encapsulation layer is located on one side, back to the first substrate, of the light-emitting device layer.
9. The display panel according to claim 8, wherein the filter layer is located on a surface of the encapsulation layer facing away from the first substrate.
10. The display panel according to claim 8, further comprising a liquid-state laminating adhesive and a second substrate;
the liquid laminating adhesive is attached to the surface, back to the first substrate, of the packaging layer, the filter layer and the touch metal wire are located on one side, back to the first substrate, of the liquid laminating adhesive, and the second substrate is located on one side, back to the first substrate, of the filter layer and the touch metal wire.
11. The display panel according to claim 10,
the non-display area comprises a first non-display area, and a chip binding area is arranged on one side, far away from the display area, of the first non-display area;
the display panel further comprises a barrier layer, the barrier layer is located in the first non-display area, and the liquid adhesive is located on one side, facing the display area, of the barrier layer.
12. The display panel according to claim 11, wherein the barrier layer comprises a planarization layer and a light-to-heat conversion layer on a side of the planarization layer facing away from the first substrate.
13. The display panel according to claim 1,
the touch control metal wire comprises a driving electrode metal wire and a sensing electrode metal wire, the driving electrode metal wire and the sensing electrode metal wire are arranged in different layers, and an insulating layer is arranged between the driving electrode metal wire and the sensing electrode metal wire.
14. The display panel according to claim 1, wherein the display panel is a flexible display panel.
15. A display device comprising the display panel according to any one of claims 1 to 14.
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