CN104049417A - Display panel - Google Patents

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Publication number
CN104049417A
CN104049417A CN201410299338.1A CN201410299338A CN104049417A CN 104049417 A CN104049417 A CN 104049417A CN 201410299338 A CN201410299338 A CN 201410299338A CN 104049417 A CN104049417 A CN 104049417A
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CN
China
Prior art keywords
pattern
shape
display panels
area
display panel
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Granted
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CN201410299338.1A
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Chinese (zh)
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CN104049417B (en
Inventor
陈彦良
萧家斌
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AU Optronics Corp
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AU Optronics Corp
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Abstract

A display panel. The display panel is provided with a plurality of pixel areas and a shading area, and the shading area is arranged around the pixel areas. The display panel comprises a first substrate, a pixel array, an insulating layer, a second substrate, a plurality of spacers and a display medium. The pixel array is located on the first substrate. The insulating layer covers the pixel array, wherein the insulating layer is provided with a plurality of pattern areas positioned in the shading area. The second substrate is opposite to the first substrate. The spacers are disposed on the second substrate and respectively disposed in the light-shielding region corresponding to the pattern region of the insulating layer. The area of the spacer is A1, the area of the pattern region is A2, and A2/A1 is 1-2. The display medium is positioned between the first substrate and the second substrate.

Description

Display panel
Technical field
The present invention relates to a kind of display panel, particularly a kind of display panel that improves light leak problem.
Background technology
Along with scientific and technological progress, bulky cathode-ray tube (CRT) (Cathode Ray Tube, CRT) display has gradually entered into history.Therefore, liquid crystal display (Liquid Crystal Display, LCD), organic luminuous dipolar object display (Organic Light Emitting Diode display, OLED display), electrophoretic display device (EPD) (Electro-Phoretic Display, EPD), the display panel such as plasma display panel (Plasma Display Panel, PDP) little by little becomes the main flow of following display.
In order to control accurately the gap (cell gap) of active component array base board and the subtend substrate of display panel, generally can between two substrates, add separation material with supporting gap.When display panel is bent or presses, (for example, while carrying out mobile light separation material test (moving PS test)) can cause the dislocation (or slip) of separation material, and the separation material of dislocation can cause the rete on the active component array base board of scratch viewing area, or make the orientation effect of the both alignment layers on active component array base board bad, thereby cause display panel to have the problem of light leak.Moreover, if separation material misplaces in oblique direction, due to separation material two adjacent pixel regions of scratch asymmetrically, the problem that the separation material therefore misplacing in oblique direction more easily amplifies display panel light leak.Because the dislocation of separation material can cause the problem of display panel light leak, therefore how developing display panel that the magnitude of misalignment of separation material is less real is one of target that developer wanted to reach.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of display panel, can reduce the magnitude of misalignment of the separation material causing to improve the problem of display panel light leak when display panel is bent or presses.
To achieve these goals, the invention provides a kind of display panel.Display panel has a plurality of pixel regions and a shading region, and shading region arranges around pixel region.Display panel comprises first substrate, pel array, insulation course, second substrate, a plurality of separation material and display medium.Pel array is positioned on first substrate.Insulation course covers pel array, and wherein insulation course has a plurality of pattern area and is arranged in shading region.Second substrate is positioned at the subtend of first substrate.Separation material is positioned on second substrate, and the pattern area of corresponding insulation course is arranged in shading region respectively, and wherein the area of separation material is A1, and the area of pattern area is A2, and A2/A1=1~2.Display medium is between first substrate and second substrate.
Technique effect of the present invention is:
The design of pattern area of the present invention can increase separation material on second substrate and the friction force between the insulation course on first substrate, to reduce the magnitude of misalignment of the separation material being caused when display panel is bent or presses, and then can improve the problem of display panel light leak.
Below in conjunction with the drawings and specific embodiments, describe the present invention, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the vertical view according to the display panel of the first embodiment of the present invention;
Fig. 2 is the enlarged diagram of the region R of Fig. 1;
Fig. 3 A and Fig. 3 B are respectively the diagrammatic cross-section of the region R I-I ' along the line of Fig. 2;
Fig. 4 is the enlarged diagram according to the region R of the second embodiment of the present invention;
Fig. 5 is the enlarged diagram according to the region R of the third embodiment of the present invention;
Fig. 6 is the enlarged diagram according to the region R of the fourth embodiment of the present invention;
Fig. 7 is the enlarged diagram according to the region R of the fifth embodiment of the present invention;
Fig. 8 A and Fig. 8 B are respectively the diagrammatic cross-section of the region R I-I ' along the line of Fig. 7;
Fig. 9 is the enlarged diagram according to the region R of the sixth embodiment of the present invention;
Figure 10 is the enlarged diagram according to the region R of the seventh embodiment of the present invention;
Figure 11 is the enlarged diagram according to the region R of the eighth embodiment of the present invention;
Figure 12 is the enlarged diagram according to the region R of the ninth embodiment of the present invention;
Figure 13 is the enlarged diagram according to the region R of the tenth embodiment of the present invention;
Figure 14 to Figure 16 is respectively the diagrammatic cross-section of the region R I-I ' along the line of Figure 13;
Figure 17 is the enlarged diagram according to the region R of the 11st embodiment of the present invention;
Figure 18 is the diagrammatic cross-section of the region R I-I ' along the line of Figure 17;
Figure 19 is the enlarged diagram according to the region R of the 12nd embodiment of the present invention;
Figure 20 is the enlarged diagram according to the region R of the 13rd embodiment of the present invention;
Figure 21 is the diagrammatic cross-section of the region R I-I ' along the line of Figure 20;
Figure 22 is the enlarged diagram according to the region R of the 14th embodiment of the present invention;
Figure 23 is the enlarged diagram according to the region R of the 15th embodiment of the present invention;
Figure 24 is the enlarged diagram according to the region R of the 16th embodiment of the present invention.
Wherein, Reference numeral
100 display panels
102 pixel regions
104 shading regions
110 first substrates
112 pel arrays
114 insulation courses
114a, 150a surface
114b depressed part
116 pattern area
116a, 116a ', 156a pattern
120 second substrates
122 separation materials
130 display mediums
142,144 both alignment layers
150 first frictional layers
150c annular recess
160 second frictional layers
170 light shield layers
180 dielectric layers
216a, 256a center pattern
216b, 256b annular patterns
A1, A2, A2 ', A2 " area
D1, D2, D3 direction
DL data line
H difference in height
I-I ' line
P dot structure
PE pixel electrode
R region
SL sweep trace
T active member
θ 1, θ 2 angles
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present invention and principle of work are described in detail:
Fig. 1 is the vertical view according to the display panel of the first embodiment of the present invention, the enlarged diagram of the region R that Fig. 2 is Fig. 1, and Fig. 3 A and Fig. 3 B are respectively the diagrammatic cross-section of the region R I-I ' along the line of Fig. 2.Fig. 1 and Fig. 2 only show the partial component of display panel 100, about the detailed structure of display panel 100 and member thereof, please refer to Fig. 3 A or Fig. 3 B.
Referring to Fig. 1 to Fig. 3 B, display panel 100 has a plurality of pixel regions 102 and a shading region 104, and shading region 104 102 settings around pixel region.Moreover display panel 100 comprises first substrate 110, pel array 112, insulation course 114, second substrate 120, a plurality of separation material 122 and display medium 130.Display panel 100 is for example display panels, organic LED display panel, electrophoretic display panel, electric slurry display panel or other suitable display panels.
The material of first substrate 110 can be glass, quartz, organic polymer or metal etc.
Pel array 112 is positioned on first substrate 110.Pel array 112 forms array format by a plurality of dot structure P and is formed.Each dot structure P comprises sweep trace SL, data line DL, active member T and pixel electrode PE.In the present embodiment, sweep trace SL, data line DL and active member T are for example the shading regions 104 that is arranged in display panel 100, and pixel electrode PE is for example the pixel region 102 that is arranged in display panel 100.
Sweep trace SL is not identical with the bearing of trend of data line DL, and preferably the bearing of trend of sweep trace SL is vertical with the bearing of trend of data line DL.In the present embodiment, sweep trace SL extends along D1 direction, and data line DL extends along D2 direction, and D1 direction and D2 direction orthogonal in fact.In addition, sweep trace SL is to be positioned at not identical rete with data line DL, and accompanies insulation course (not illustrating) between the two.Sweep trace SL and data line DL are mainly used to transmit the driving signal that drives this dot structure P.Sweep trace SL and data line DL are used metal material.Yet, the invention is not restricted to this.According to other embodiment, it is for example the stack layer that comprises the oxide of alloy, metal material, the oxides of nitrogen of the nitride of metal material, metal material or metal material and other conductive material that sweep trace SL and data line DL also can be used other conductive materials.
Active member T and sweep trace SL and data line DL are electrically connected.Active member T can be bottom grid film transistor or top grid type thin film transistor (TFT), and it comprises grid, passage, source electrode and drain electrode.
Pixel electrode PE and active member T are electrically connected.Pixel electrode PE is for example transparency conducting layer, it comprises metal oxide, for example, be indium tin oxide, indium-zinc oxide, aluminium tin-oxide, aluminium zinc oxide, indium germanium zinc oxide or other suitable oxide or the above-mentioned at least stack layer of the two.
Insulation course 114 covers pel array 112, and wherein insulation course 114 has a plurality of pattern area 116.Pattern area 116 is arranged in the shading region 104 of display panel 100, and pattern area 116 comprises a plurality of pattern 116a.In the present embodiment, the area A 2 ' of each pattern 116a is 4 μ m 2~25 μ m 2, and the area of each pattern area 116 is A2 (that is, the summation of the area A 2 ' of a plurality of pattern 116a).As shown in Figure 2, the shape of pattern 116a is for example rectangle, and a plurality of pattern 116a is arranged in rectangular array in pattern area 116.Moreover as shown in Figure 3A, pattern 116a comprises a plurality of projections, and the height of pattern 116a (being for example projection) can be identical or not identical, but the invention is not restricted to this.In other embodiments, as shown in Figure 3 B, pattern 116a ' comprises a plurality of grooves, and the degree of depth of pattern 116a (being for example groove) can be identical or not identical.The height difference H of pattern area 116 (or depth difference) is 0.2 μ m~1 μ m.
The material of insulation course 114 is for example to comprise inorganic material, organic material or above-mentioned combination.Inorganic material is for example the stack layer that comprises monox, silicon nitride, silicon oxynitride or above-mentioned at least two kinds of materials.In the present embodiment, insulation course 114 can be described as again flatness layer or protective seam.The formation method of the pattern 116a of pattern area 116 or pattern 116a ' (projection or groove) is for example to comprise lithography technique, half mode (half-tone) light shield technique or other suitable methods.For instance, can be in the pattern area 116 of insulation course 114, to form pattern 116a or pattern 116a ' by lithography technique or half mode light shield technique, or first another patterning rete that forms in pattern area 116 then conformally cover insulation course 114 again to form pattern 116a or pattern 116a '.In addition, these patterns 116a or pattern 116a ' can also be with pattern area 116 beyond other patterns of insulation course 114 in same processing step, form, or can also be other formation, the present invention without particular limitation of.
Second substrate 120 is positioned at the subtend of first substrate 110.The material of second substrate 120 can be glass, quartz or organic polymer etc.According to another embodiment of the present invention, on second substrate 120, also can comprise and be provided with colour filter array layer, it comprises red, green, blue look filter pattern.In addition, on second substrate 120, also can comprise shielding pattern layer is set, it is arranged between the pattern of colour filter array layer.In the present embodiment, shielding pattern layer is for example the shading region 104 that is arranged in display panel 100, and the red, green, blue look filter pattern of colour filter array layer is for example the pixel region 102 that is arranged in display panel 100.
Separation material 122 is positioned on second substrate 120, and the pattern area 116 of corresponding insulation course 114 is arranged in shading region 104 respectively.In more detail, separation material 122 is between first substrate 110 and second substrate 120, and separation material 122 is arranged in the shading region 104 of display panel 100 and the pattern area of corresponding insulation course 114 116 arranges.That is separation material 122 overlaps in the direction of vertical projection with the pattern area 116 of insulation course 114.In the present embodiment, the area of each pattern area 116 is A2 (that is, the summation of the area A 2 ' of a plurality of pattern 116a), and the area A 1 of each separation material 122 is 28 μ m 2~202 μ m 2, and A2/A1=1~2.That is to say, the area A 2 of pattern area 116 is for example the area A 1 that is equal to or greater than separation material 122.
It is worth mentioning that, the insulation course 114 of the present embodiment has the pattern area 116 that surfaceness is larger, and pattern area 116 overlaps and contacts with separation material 122.Therefore, the design of the pattern area 116 of the present embodiment can increase separation material 122 on second substrate 120 and the friction force between the insulation course 114 on first substrate 110.Thus, the magnitude of misalignment of the separation material 122 causing can be reduced when display panel 100 is bent or presses, and then the problem of display panel 100 light leaks can be improved.
Display medium 130 is between first substrate 110 and second substrate 120.When display panel 100 is display panels, display medium 130 is for example liquid crystal molecule.In other embodiments, when display panel 100 is organic LED display panel, display medium 130 is for example organic luminous layer.When display panel 100 is electrophoretic display panel, display medium 130 is for example electrophoretic display medium.When display panel 100 is electric slurry display panel, display medium 130 is for example electricity slurry display medium.
In addition, on the insulation course 114 of first substrate 110 and on second substrate 120, also can comprise and be respectively arranged with both alignment layers 142 and both alignment layers 144, wherein both alignment layers 142 is arranged between the insulation course 114 and display medium 130 on first substrate 110, and both alignment layers 144 is arranged between second substrate 120 and display medium 130.In other words, both alignment layers 142 and both alignment layers 144 cover respectively the inner side (that is, be adjacent to a side of display medium 130) of first substrate 110 and second substrate 120, so that display medium 130 is specific orientation.
The embodiment of above-mentioned Fig. 1 to Fig. 3 B take pattern 116a or pattern 116a ' (projection or groove) as rectangle and is arranged in rectangular array to illustrate as example, but the invention is not restricted to this.In other embodiments, the shape of pattern 116a or pattern 116a ' can also be the combination that comprises rectangle, square, rhombus, kite shape, circle, ellipse, triangle, parallelogram, polygon or other suitable shapes or above-mentioned shape.Moreover in other embodiments, pattern 116a or pattern 116a ' are arranged in rectangular array, irregular figure, concentric circles, at least one annular patterns or other suitable arrangement modes.In other words, the present invention is without particular limitation of size, shape or the arrangement mode etc. of the pattern of pattern area 116, for example, as long as separation material 122 overlaps with pattern area 116 and A2 >=A1 (A2/A1=1~2) is covered by among scope of the present invention.
Fig. 4 to Fig. 6 is respectively the enlarged diagram according to the region R of the of the present invention second to the 4th embodiment.The embodiment of Fig. 4 to Fig. 6 is similar to the embodiment of above-mentioned Fig. 1 to Fig. 3 B, and therefore same or analogous element represents with same or analogous symbol, and no longer repeat specification.The difference of the embodiment of the embodiment of Fig. 4 to Fig. 6 and above-mentioned Fig. 1 to Fig. 3 B is, the shape of the pattern 116a of pattern area 116 or arrangement mode difference.
Please refer to Fig. 4, the shape of pattern 116a is for example rectangle, and a plurality of pattern 116a is arranged in irregular figure in pattern area 116.Moreover in the present embodiment, pattern 116a comprises a plurality of projections, but the invention is not restricted to this.In other embodiments, the pattern of pattern area 116 can also be to comprise a plurality of grooves.
Please refer to Fig. 5, the shape of pattern 116a is for example rhombus, and a plurality of pattern 116a is arranged in rectangular array in pattern area 116.Moreover in the present embodiment, pattern 116a comprises a plurality of projections, but the invention is not restricted to this.In other embodiments, the pattern of pattern area 116 can also be to comprise a plurality of grooves.
Please refer to Fig. 6, the shape of pattern 116a is for example rhombus, and a plurality of pattern 116a is arranged in X-shaped pattern in pattern area 116.In more detail, D3 direction and D1 direction and D2 direction are not parallel each other, and wherein D3 direction and D1 direction and D2 direction form the angle that is less than 90 degree.That is D3 direction and D1 direction form the angle theta 1 that is less than 90 degree, and D3 direction and the formation of D2 direction are less than the angle theta 2 of 90 degree.In the present embodiment, because the distribution density of the pattern 116a in D3 direction is greater than the distribution density of the pattern 116a in D1 direction or D2 direction, therefore can improve oblique direction (that is, D3 direction) friction force (that is pattern area 116 has larger surfaceness in oblique direction).Thus, the separation material 122 that the causes magnitude of misalignment in oblique direction (that is, D3 direction) can be reduced when display panel 100 is bent or presses, and then the problem of display panel 100 light leaks can be improved.Moreover in the present embodiment, pattern 116a comprises a plurality of projections, but the invention is not restricted to this.In other embodiments, the pattern of pattern area 116 can also be to comprise a plurality of grooves.
Fig. 7 is the enlarged diagram according to the region R of the fifth embodiment of the present invention, and Fig. 8 A and Fig. 8 B are respectively the diagrammatic cross-section of the region R I-I ' along the line of Fig. 7.The embodiment of Fig. 7 to Fig. 8 B is similar to the embodiment of above-mentioned Fig. 1 to Fig. 3 B, and therefore same or analogous element represents with same or analogous symbol, and no longer repeat specification.The difference of the embodiment of Fig. 7 to Fig. 8 B and above-mentioned Fig. 1 to Fig. 3 B is, the shape of the pattern of pattern area 116 or arrangement mode difference.
Please refer to Fig. 7, the shape of pattern 116a is for example circular, and a plurality of pattern 116a is arranged in hexagon-shaped pattern in pattern area 116.Moreover as shown in Figure 8 A, pattern 116a comprises a plurality of projections with circular section, but the invention is not restricted to this.In other embodiments, as shown in Figure 8 B, pattern 116a ' comprises a plurality of grooves with circular section.In other words, the present invention is also without particular limitation of the projection of pattern 116a or the cross sectional shape of groove, and it is for example to comprise square-section (as shown in Fig. 3 A and Fig. 3 B), circular section or other suitable cross sectional shapes.The height difference H of pattern area 116 (or depth difference) is 0.2 μ m~1 μ m.
Fig. 9 is the enlarged diagram according to the region R of the sixth embodiment of the present invention.The embodiment of Fig. 9 is similar to the embodiment of above-mentioned Fig. 1 to Fig. 3 B, and therefore same or analogous element represents with same or analogous symbol, and no longer repeat specification.The difference of the embodiment of the embodiment of Fig. 9 and above-mentioned Fig. 1 to Fig. 3 B is, the shape of the pattern of pattern area 116 or arrangement mode difference.
Please refer to Fig. 9, the center pattern 216a that a plurality of patterns are arranged in annular patterns 216b and are positioned at annular patterns 216b inside in pattern area 116, and the shape of center pattern 216a and annular patterns 216b is for example rectangle.Moreover in the present embodiment, center pattern 216a and annular patterns 216b comprise a plurality of projections, but the invention is not restricted to this.In other embodiments, the pattern of center pattern 216a and annular patterns 216b can also be to comprise a plurality of grooves.The height difference H (or depth difference) of pattern area 116 (comprising center pattern 216a or annular patterns 216b) is 0.2 μ m~1 μ m.
In the present embodiment, the area A 2 ' of each center pattern 216a is 4 μ m 2~25 μ m 2, the area A 2 of each annular patterns 216b " and be 3 μ m 2~105 μ m 2, and the area of each pattern area 116 be A2 (that is, the area A 2 of the area A of center pattern 216a 2 ' and annular patterns 216b " summation).Moreover in the present embodiment, the area A 1 of each separation material 122 is 28 μ m 2~202 μ m 2, and A2/A1=1~2.That is to say, the area A 2 of pattern area 116 is for example the area A 1 that is equal to or greater than separation material 122.
The shape of embodiment Shi Yi center pattern 216a of above-mentioned Fig. 9 is identical with the shape of annular patterns 216b and to be all rectangle be that example illustrates, but the invention is not restricted to this.In other embodiments, the shape of center pattern 216a or annular patterns 216b can also be the combination that comprises rectangle, square, rhombus, kite shape, circle, ellipse, triangle, parallelogram, polygon or other suitable shapes or above-mentioned shape.Moreover in other embodiments, the shape of center pattern 216a can also be different from the shape of annular patterns 216b.In other words, the present invention is without particular limitation of size, shape or the arrangement mode etc. of the pattern of pattern area 116, for example, as long as separation material 122 overlaps with pattern area 116 and A2 >=A1 (A2/A1=1~2) is covered by among scope of the present invention.
Figure 10 to Figure 12 is respectively the enlarged diagram according to the region R of the 7th to the 9th embodiment of the present invention.The embodiment of Figure 10 to Figure 12 is similar to the embodiment of above-mentioned Fig. 9, and therefore same or analogous element represents with same or analogous symbol, and no longer repeat specification.The difference of the embodiment of Figure 10 to Figure 12 and the embodiment of above-mentioned Fig. 9 is, the shape of pattern area 116 center pattern 216a or annular patterns 216b or arrangement mode difference.
Please refer to Figure 10, the shape of center pattern 216a is for example identical with the shape of annular patterns 216b and is all rhombus.Moreover in the present embodiment, center pattern 216a and annular patterns 216b comprise a plurality of projections, but the invention is not restricted to this.In other embodiments, the pattern of center pattern 216a and annular patterns 216b can also be to comprise a plurality of grooves.
Please refer to Figure 11, the center pattern 216a that a plurality of patterns are arranged in two annular patterns 216b and are positioned at annular patterns 216b inside in pattern area 116.The shape of center pattern 216a is for example identical with the shape of annular patterns 216b and is all circle, is arranged in concentric circles.In other words, the present invention is also without particular limitation of the quantity of center pattern 216a or the number of turns of annular patterns 216b etc.For instance, in other embodiments, can also be do not comprise center pattern 216a and only comprise at least one annular patterns 216b, or the quantity of center pattern 216a can also be a plurality of, or the number of turns of annular patterns 216b can also be a plurality of.Moreover in the present embodiment, center pattern 216a and annular patterns 216b comprise a plurality of projections, but the invention is not restricted to this.In other embodiments, the pattern of center pattern 216a and annular patterns 216b can also be to comprise a plurality of grooves.
Please refer to Figure 12, the shape of center pattern 216a is for example different from the shape of annular patterns 216b, wherein the rectangle that is shaped as that is shaped as circle and annular patterns 216b of center pattern 216a.Moreover in the present embodiment, center pattern 216a and annular patterns 216b comprise a plurality of projections, but the invention is not restricted to this.In other embodiments, the pattern of center pattern 216a and annular patterns 216b can also be to comprise a plurality of grooves.
The embodiment of above-mentioned Fig. 1 to Figure 12 take the pattern area 116 of insulation course 114 to have a plurality of pattern 116a and illustrate as example, but the invention is not restricted to this.In other embodiments, can also be also to include frictional layer in the pattern area 116 of insulation course 114.
Figure 13 is the enlarged diagram according to the region R of the tenth embodiment of the present invention, and Figure 14 to Figure 16 is respectively the diagrammatic cross-section of the region R I-I ' along the line of Figure 13.The embodiment of Figure 13 to Figure 16 is similar to the embodiment of above-mentioned Fig. 1 to Fig. 3 B, and therefore same or analogous element represents with same or analogous symbol, and no longer repeat specification.The difference of the embodiment of the embodiment of Figure 13 to Figure 16 and above-mentioned Fig. 1 to Fig. 3 B is, in the pattern area 116 of insulation course 114, also includes frictional layer.
Referring to Figure 13 and Figure 14, insulation course 114 also comprises a plurality of depressed part 114b, and depressed part 114b lays respectively in pattern area 116.A plurality of the first frictional layers 150 lay respectively in the depressed part 114b of insulation course 114, so that the surperficial 114a of insulation course 114 presents smooth.In other words, the first frictional layer 150 fills up depressed part 114b, and the surperficial 150a of the first frictional layer 150 and the surperficial 114a of insulation course 114 flush.Moreover a plurality of the second frictional layers 160 lay respectively on separation material 122, and the first frictional layer 150 and the second frictional layer 160 contact with each other.In the present embodiment, the area of each pattern area 116 is A2 (that is, the area of the first frictional layer 150), the area A 1 of each separation material 122 (that is, the area of the second frictional layer 160) be 28 μ m 2~202 μ m 2, and A2/A1=1~2.That is to say, the area A 2 of pattern area 116 is for example the area A 1 that is equal to or greater than separation material 122.
The material of the first frictional layer 150 and the second frictional layer 160 is for example the material that coefficient of static friction is greater than 1.0.In the present embodiment, the material of the first frictional layer 150 is identical with the material of the second frictional layer 160, and the material of the first frictional layer and the second frictional layer comprises aluminium, titanium, cast iron, iron, copper, nickel, platinum, silver or other suitable materials.Yet, the invention is not restricted to this, in other embodiments, the material of the first frictional layer 150 can also be different from the material of the second frictional layer 160, so long as can make the coefficient of static friction in this two-layer when contact be greater than 1.0 material and can reduce the magnitude of misalignment of separation material 122.The formation method of the first frictional layer 150 is for example first on insulation course 114, to form friction material layer (not illustrating), then by chemical mechanical milling tech or etch back process, forms the first frictional layer 150 in depressed part 114b again.The formation method of the second frictional layer 160 and separation material 122 is for example first on second substrate 120, sequentially to form separation material material layer (not illustrating) and friction material layer (not illustrating), then by chemical mechanical milling tech or etch back process, forms the second frictional layer 160 and separation material 122 again.
It is worth mentioning that, the insulation course 114 of the present embodiment has the pattern area 116 that friction force is larger, and pattern area 116 overlaps and contacts with separation material 122, and separation material 122 also has larger friction force with the surface of contact of pattern area 116.That is the first frictional layer 150 and the second frictional layer 160 contact with each other.Therefore, first frictional layer 150 of the present embodiment and the design of the second frictional layer 160 can increase separation material 122 on second substrate 120 and the friction force between the insulation course 114 on first substrate 110.Thus, the magnitude of misalignment of the separation material 122 causing can be reduced when display panel 100 is bent or presses, and then the problem of display panel 100 light leaks can be improved.
The embodiment of above-mentioned Figure 14 take to be provided with the first frictional layer 150 in depressed part 114b and to illustrate as example, but the invention is not restricted to this.In other embodiments, can also be in depressed part 114b, also to comprise being provided with other retes.
For instance, as shown in figure 15, in depressed part 114b, can also comprise and be provided with light shield layer 170.In more detail, in the embodiment of Figure 15, a plurality of light shield layers 170 lay respectively in the depressed part 114b of insulation course 114, and light shield layer 170 is between the first frictional layer 150 and insulation course 114.Thus, in other embodiments, when the first frictional layer 150 overlaps with active member T, light shield layer 170 can, in order to avoid the light from backlight or external light source reflect on the first frictional layer 150 and be irradiated to active member T, therefore can be avoided the problem of light leakage current (photo current leakage) and have good display quality.The material of light shield layer 170 is for example black resin or other suitable materials.
Again for instance, as shown in figure 16, in depressed part 114b, also can comprise and be provided with light shield layer 170 and dielectric layer 180.In more detail, in the embodiment of Figure 16, a plurality of light shield layers 170 and a plurality of dielectric layer 180 lay respectively in the depressed part 114b of insulation course 114, and wherein light shield layer 170 is between the first frictional layer 150 and dielectric layer 180, and dielectric layer 180 is between light shield layer 170 and insulation course 114.Thus, in other embodiments, when the first frictional layer 150 overlaps with active member T, light shield layer 170 can, in order to avoid the light from backlight or external light source reflect on the first frictional layer 150 and be irradiated to active member T, therefore can be avoided the problem of light leakage current and have good display quality.Moreover when the material of insulation course 114 is organic material, dielectric layer 180 can be in order to isolated the first frictional layer 150 and active member T, and then avoids producing capacity effect.In the present embodiment, the material of dielectric layer 180 comprises monox, silicon nitride or other suitable materials, and the material of insulation course 114 comprises organic material or other suitable materials.
In addition, the embodiment of above-mentioned Figure 13 to Figure 16 flushes (that is the surperficial 114a of insulation course 114 presents smooth) for example illustrates with the surperficial 150a of the first frictional layer 150 and the surperficial 114a of insulation course 114, but the invention is not restricted to this.In other embodiments, can also be that the surperficial 150a of the first frictional layer 150 and the surperficial 114a of insulation course 114 do not flush.For instance, the first frictional layer 150 can protrude from the surperficial 114a of insulation course 114 or depression, the present invention without particular limitation of, as long as the height of corresponding adjusting play thing 122 is to maintain the gap (cell gap) of first substrate 110 and second substrate 120.Moreover in other embodiments, the first frictional layer 150 or the second frictional layer 160 or both comprise a plurality of patterns, please refer in detail the description of following examples.
Figure 17 is the enlarged diagram according to the region R of the 11st embodiment of the present invention, and the diagrammatic cross-section of the region R I-I ' along the line that Figure 18 is Figure 17.The embodiment of Figure 17 to Figure 18 is similar to the embodiment of above-mentioned Figure 13 to Figure 14, and therefore same or analogous element represents with same or analogous symbol, and no longer repeat specification.The difference of the embodiment of Figure 17 to Figure 18 and the embodiment of above-mentioned Figure 13 to Figure 14 is, the first frictional layer 150 also comprises a plurality of pattern 156a.
In the present embodiment, the area A 2 ' of each pattern 156a is 4 μ m 2~25 μ m 2.As shown in figure 17, the shape of pattern 156a is for example rectangle, and a plurality of pattern 156a is arranged in rectangular array in pattern area 116.Moreover as shown in figure 18, pattern 156a comprises a plurality of projections, but the invention is not restricted to this.In other embodiments, pattern 156a comprises a plurality of grooves.The formation method of pattern 156a (projection or groove) is for example to comprise chemical mechanical milling tech, etch back process or other suitable methods.In the present embodiment, the area of each pattern area 116 is A2, and the area A 1 of each separation material 122 is 28 μ m 2~202 μ m 2, and A2/A1=1~2.That is to say, the area A 2 of pattern area 116 is for example the area A 1 that is equal to or greater than separation material 122.
It is worth mentioning that, the pattern area 116 of the insulation course 114 of the present embodiment all has larger surfaceness and friction force, and pattern area 116 overlaps and contacts with separation material 122, and separation material 122 also has larger friction force with the surface of contact of pattern area 116.That is the pattern 156a of the first frictional layer 150 and the second frictional layer 160 contact with each other.Therefore, first frictional layer 150 of the present embodiment and the design of the second frictional layer 160 can increase separation material 122 on second substrate 120 and the friction force between the insulation course 114 on first substrate 110.Thus, the magnitude of misalignment of the separation material 122 causing can be reduced when display panel 100 is bent or presses, and then the problem of display panel 100 light leaks can be improved.
The embodiment of above-mentioned Figure 17 to Figure 18 take pattern 156a as rectangle and is arranged in rectangular array to illustrate as example, but the invention is not restricted to this.In other embodiments, the shape of pattern 156a can also be the combination that comprises rectangle, square, rhombus, kite shape, circle, ellipse, triangle, parallelogram, polygon or other suitable shapes or above-mentioned shape.Moreover in other embodiments, pattern 156a is arranged in rectangular array, irregular figure, concentric circles, at least one annular patterns or other suitable arrangement modes.In other words, the present invention is without particular limitation of size, shape or the arrangement mode etc. of the pattern of pattern area 116, for example, as long as separation material 122 overlaps with pattern area 116 and A2 >=A1 (A2/A1=1~2) is covered by among scope of the present invention.
Figure 19 is the enlarged diagram according to the region R of the 12nd embodiment of the present invention.The embodiment of Figure 19 is similar to the embodiment of above-mentioned Figure 17 to Figure 18, and therefore same or analogous element represents with same or analogous symbol, and no longer repeat specification.The difference of the embodiment of Figure 19 and the embodiment of above-mentioned Figure 17 to Figure 18 is, the shape of the pattern of frictional layer or arrangement mode difference.
Please refer to Figure 19, the center pattern 256a that a plurality of patterns of the first frictional layer 150 are arranged in annular patterns 256b and are positioned at annular patterns 256b inside in pattern area 116, and the shape of center pattern 256a and annular patterns 256b is for example rectangle.Moreover in the present embodiment, center pattern 256a and annular patterns 256b comprise a plurality of projections, but the invention is not restricted to this.In other embodiments, the pattern of center pattern 256a and annular patterns 256b can also be to comprise a plurality of grooves.
In the present embodiment, the area A 2 ' of each center pattern 256a is 4 μ m 2~25 μ m 2, the area A 2 of each annular patterns 256b " and be 3 μ m 2~105 μ m 2.Moreover in the present embodiment, the area of each pattern area 116 is A2, the area A 1 of each separation material 122 is 28 μ m 2~202 μ m 2, and A2/A1=1~2.That is to say, the area A 2 of pattern area 116 is for example the area A 1 that is equal to or greater than separation material 122.
The shape of embodiment Shi Yi center pattern 256a of above-mentioned Figure 19 is identical with the shape of annular patterns 256b and to be all rectangle be that example illustrates, but the invention is not restricted to this.In other embodiments, the shape of center pattern 256a or annular patterns 256b can also be the combination that comprises rectangle, square, rhombus, kite shape, circle, ellipse, triangle, parallelogram, polygon or other suitable shapes or above-mentioned shape.Moreover in other embodiments, the shape of center pattern 256a can also be different from the shape of annular patterns 256b.In other words, the present invention is without particular limitation of size, shape or the arrangement mode etc. of the pattern of pattern area 116, for example, as long as separation material 122 overlaps with pattern area 116 and A2 >=A1 (A2/A1=1~2) is covered by among scope of the present invention.
Figure 20 is the enlarged diagram according to the region R of the 13rd embodiment of the present invention, and the diagrammatic cross-section of the region R I-I ' along the line that Figure 21 is Figure 20.The embodiment of Figure 20 to Figure 21 is similar to the embodiment of above-mentioned Figure 19, and therefore same or analogous element represents with same or analogous symbol, and no longer repeat specification.The difference of the embodiment of Figure 20 to Figure 21 and the embodiment of above-mentioned Figure 19 is, the shape of the first frictional layer 150 center pattern 256a or annular patterns 256b or arrangement mode difference.
Referring to Figure 20 and Figure 21, the shape of center pattern 256a is for example identical with the shape of annular patterns 256b and is all rhombus.Moreover in the present embodiment, center pattern 256a and annular patterns 256b comprise a plurality of projections, but the invention is not restricted to this.In other embodiments, the pattern of center pattern 256a and annular patterns 256b can also be to comprise a plurality of grooves.In addition, in the present embodiment, when center pattern 256a and annular patterns 256b are projection, between center pattern 256a and annular patterns 256b, can form annular recess 150c, and the second frictional layer 160 can be for example the shape with ring-type projection, correspondence is sticked in annular recess 150c, further to reduce the magnitude of misalignment of the separation material 122 being caused when display panel 100 is bent or presses.
Figure 22 to Figure 24 is respectively the enlarged diagram according to the region R of the 14 to the 16 embodiment of the present invention.The embodiment of Figure 22 to Figure 24 is similar to the embodiment of above-mentioned Figure 17 to Figure 18, and therefore same or analogous element represents with same or analogous symbol, and no longer repeat specification.The difference of the embodiment of Figure 22 to Figure 24 and the embodiment of above-mentioned Figure 17 to Figure 18 is, the shape of the pattern of frictional layer or arrangement mode difference.
Please refer to Figure 22, the shape of pattern 156a is for example rectangle, and a plurality of pattern 156a is arranged in mosaic shape in pattern area 116, to increase equably the friction force of all directions.Moreover in the present embodiment, pattern 156a comprises a plurality of projections, but the invention is not restricted to this.In other embodiments, pattern 156a comprises a plurality of grooves.
Please refer to Figure 23, the shape of pattern 156a is for example T shape, and a plurality of pattern 156a rule arrangement in pattern area 116, to increase equably the friction force of all directions.Moreover in the present embodiment, pattern 156a comprises a plurality of projections, but the invention is not restricted to this.In other embodiments, pattern 156a comprises a plurality of grooves.
Please refer to Figure 24, the shape of pattern 156a is for example rail shape, for example, to increase the friction force of D1 direction (horizontal direction).Moreover in the present embodiment, pattern 156a comprises a plurality of projections, but the invention is not restricted to this.In other embodiments, pattern 156a comprises a plurality of grooves.
In sum, in display panel of the present invention, the pattern area of the corresponding insulation course of separation material is arranged in shading region and A2/A1=1~2.Because insulation course has surfaceness or the larger pattern area of friction force, and pattern area overlaps and contacts with separation material, and therefore the design of pattern area of the present invention can increase separation material on second substrate and the friction force between the insulation course on first substrate.Thus, the magnitude of misalignment of the separation material causing can be reduced when display panel is bent or presses, and then the problem of display panel light leak can be improved.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.

Claims (33)

1. a display panel, is characterized in that, this display panel has a plurality of pixel regions and a shading region, and this shading region arranges around the plurality of pixel region, comprising:
One first substrate;
One pel array, is positioned on this first substrate;
One insulation course, covers this pel array, and wherein this insulation course has a plurality of pattern area and is arranged in this shading region;
One second substrate, is positioned at the subtend of this first substrate;
A plurality of separation materials, are positioned on this second substrate, and respectively the plurality of pattern area that should insulation course are arranged in this shading region, and wherein the area of the plurality of separation material is A1, and the area of the plurality of pattern area is A2, and A2/A1=1~2; And
One display medium, between this first substrate and this second substrate.
2. display panel as claimed in claim 1, is characterized in that, the area A 1 of the plurality of separation material is 28 μ m 2~202 μ m 2.
3. display panel as claimed in claim 1, is characterized in that, the plurality of pattern area comprises a plurality of patterns.
4. display panel as claimed in claim 3, is characterized in that, the area A 2 ' of the plurality of pattern is 4 μ m 2~25 μ m 2.
5. display panel as claimed in claim 3, is characterized in that, the difference in height of the plurality of pattern is 0.2 μ m~1 μ m.
6. display panel as claimed in claim 3, is characterized in that, this pel array comprises the multi-strip scanning line extending along a D1 direction and many data lines that extend along a D2 direction.
7. display panel as claimed in claim 6, it is characterized in that, also comprise that a D3 direction and this D1 direction and this D2 direction are not parallel each other, and the distribution density of the plurality of pattern in this D3 direction is greater than the distribution density of the plurality of pattern in this D1 direction or this D2 direction.
8. display panel as claimed in claim 7, is characterized in that, this D1 direction and this D2 direction are orthogonal, and this D3 direction and this D1 direction and this D2 direction form the angle that is less than 90 degree.
9. display panel as claimed in claim 3, is characterized in that, the plurality of pattern comprises a plurality of projections or a plurality of groove.
10. display panel as claimed in claim 3, is characterized in that, the shape of the plurality of pattern comprises the combination of rectangle, square, rhombus, kite shape, circle, ellipse, triangle, parallelogram, polygon or above-mentioned shape.
11. display panels as claimed in claim 10, is characterized in that, the plurality of pattern is arranged in a rectangular array or an irregular figure in the plurality of pattern area.
12. display panels as claimed in claim 3, is characterized in that, the plurality of pattern is arranged in a concentric circles or at least one annular patterns in the plurality of pattern area.
13. display panels as claimed in claim 12, is characterized in that, also comprise a center pattern, are positioned at the inside of this at least one annular patterns.
14. display panels as claimed in claim 13, it is characterized in that, the shape of this at least one annular patterns Huo Gai center pattern comprises the combination of rectangle, square, rhombus, kite shape, circle, ellipse, triangle, parallelogram, polygon or above-mentioned shape.
15. display panels as claimed in claim 14, is characterized in that, the shape of the shape Yu Gai center pattern of this at least one annular patterns is identical.
16. display panels as claimed in claim 14, is characterized in that, the shape of the shape Yu Gai center pattern of this at least one annular patterns is different.
17. display panels as claimed in claim 1, is characterized in that, also comprise a plurality of depressed parts, lay respectively in the plurality of pattern area of this insulation course.
18. display panels as claimed in claim 17, it is characterized in that, also comprise a plurality of the first frictional layers and a plurality of the second frictional layer, wherein the plurality of the first frictional layer lays respectively in the plurality of depressed part of this insulation course, the plurality of the second frictional layer lays respectively on the plurality of separation material, and the plurality of the first frictional layer and the plurality of the second frictional layer contact with each other.
19. display panels as claimed in claim 18, is characterized in that, the material of the plurality of the first frictional layer and the plurality of the second frictional layer is the material that coefficient of static friction is greater than 1.0.
20. display panels as claimed in claim 19, is characterized in that, the material of the plurality of the first frictional layer is identical with the material of the plurality of the second frictional layer.
21. display panels as claimed in claim 20, is characterized in that, the material of the plurality of the first frictional layer and the plurality of the second frictional layer comprises aluminium, titanium, cast iron, iron, copper, nickel, platinum or silver.
22. display panels as claimed in claim 18, is characterized in that, also comprise a plurality of light shield layers, lay respectively between the plurality of depressed part and the plurality of the first frictional layer of this insulation course.
23. display panels as claimed in claim 22, is characterized in that, also comprise a plurality of dielectric layers, lay respectively between the plurality of depressed part and the plurality of light shield layer of this insulation course.
24. display panels as claimed in claim 23, it is characterized in that, the material of the plurality of dielectric layer comprises monox or silicon nitride, and the material of this insulation course comprise organic material.
25. display panels as claimed in claim 18, is characterized in that, the plurality of the first frictional layer or the plurality of the second frictional layer comprise a plurality of patterns.
26. display panels as claimed in claim 25, is characterized in that, the plurality of pattern comprises a plurality of projections or a plurality of groove.
27. display panels as claimed in claim 25, is characterized in that, the shape of the plurality of pattern comprises the combination of rectangle, square, rhombus, kite shape, circle, ellipse, triangle, parallelogram, polygon or above-mentioned shape.
28. display panels as claimed in claim 27, is characterized in that, the plurality of pattern is arranged in a rectangular array or an irregular figure in the plurality of pattern area.
29. display panels as claimed in claim 25, is characterized in that, the plurality of pattern is arranged in a concentric circles or at least one annular patterns in the plurality of pattern area.
30. display panels as claimed in claim 29, is characterized in that, also comprise a center pattern, are positioned at the inside of this at least one annular patterns.
31. display panels as claimed in claim 30, it is characterized in that, the shape of this at least one annular patterns Huo Gai center pattern comprises the combination of rectangle, square, rhombus, kite shape, circle, ellipse, triangle, parallelogram, polygon or above-mentioned shape.
32. display panels as claimed in claim 31, is characterized in that, the shape of the shape Yu Gai center pattern of this at least one annular patterns is identical.
33. display panels as claimed in claim 31, is characterized in that, the shape of the shape Yu Gai center pattern of this at least one annular patterns is different.
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