CN114415417A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
- Publication number
- CN114415417A CN114415417A CN202210179469.0A CN202210179469A CN114415417A CN 114415417 A CN114415417 A CN 114415417A CN 202210179469 A CN202210179469 A CN 202210179469A CN 114415417 A CN114415417 A CN 114415417A
- Authority
- CN
- China
- Prior art keywords
- layer
- display panel
- light
- liquid crystal
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 103
- 239000000758 substrate Substances 0.000 claims description 96
- 239000002184 metal Substances 0.000 claims description 59
- 229910052751 metal Inorganic materials 0.000 claims description 59
- 239000002245 particle Substances 0.000 claims description 21
- 229920005989 resin Polymers 0.000 claims description 12
- 239000011347 resin Substances 0.000 claims description 12
- 239000002923 metal particle Substances 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 30
- 230000000737 periodic effect Effects 0.000 abstract description 18
- 239000010410 layer Substances 0.000 description 368
- 239000010408 film Substances 0.000 description 37
- 239000011229 interlayer Substances 0.000 description 21
- 239000010409 thin film Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 8
- 230000001965 increasing effect Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 238000002834 transmittance Methods 0.000 description 7
- 239000012790 adhesive layer Substances 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229910052581 Si3N4 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- -1 silver ions Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133504—Diffusing, scattering, diffracting elements
Abstract
The invention discloses a display panel and a display device, wherein the display panel comprises a liquid crystal dimming panel and a liquid crystal display panel which are sequentially stacked in the light emitting direction of the plane where the display panel is positioned; the liquid crystal dimming panel comprises a first shading layer, and the liquid crystal display panel comprises a second shading layer; in an arrangement plane of the first light-shielding layer, the first light-shielding layer includes a plurality of first repeating units; in the setting plane of the second light shielding layer, the second light shielding layer comprises a plurality of second repeating units, the repeating period T1 of the first repeating unit and the repeating period T2 of the second repeating unit meet the condition that the ratio of T1-T2/T1 is less than or equal to 10%, and the scattering layer is arranged between the first light shielding layer and the second light shielding layer of the display panel to scatter light rays, break through the similar periodic space frequency of the first light shielding layer and the second light shielding layer, reduce the generation of interference grains, avoid the generation of Moire grains, and play a role in improving the display effect of the display panel.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a display panel and a display device.
Background
In the prior art, the display panel with the double-layer liquid crystal box structure has a periodic structure in the upper screen and the lower screen, interference grains, namely Moire grains, are easily generated, the contrast of a display picture is reduced, and the display effect of the display panel is influenced.
Disclosure of Invention
The invention provides a display panel and a display device, which can reduce the interference effect of light paths between double-layer liquid crystal box structures, reduce moire fringes and improve the display effect of the display panel.
In a first aspect, an embodiment of the present invention provides a display panel, where the display panel includes a liquid crystal dimming panel and a liquid crystal display panel, which are sequentially stacked in a light exit direction perpendicular to a plane where the display panel is located;
the liquid crystal dimming panel comprises a first shading layer, and the liquid crystal display panel comprises a second shading layer; in an arrangement plane of the first light-shielding layer, the first light-shielding layer includes a plurality of first repeating units; in an arrangement plane of the second light shielding layer, the second light shielding layer includes a plurality of second repeating units, and a repetition period T1 of the first repeating unit and a repetition period T2 of the second repeating unit satisfy | T1-T2|/T1 ≦ 10%;
the display panel further includes a scattering layer between the first light-shielding layer and the second light-shielding layer.
In a second aspect, an embodiment of the present invention further provides a display device, which includes the display panel provided in the first aspect.
The display panel provided by the embodiment of the invention comprises a liquid crystal dimming panel and a liquid crystal display panel which are sequentially stacked in a light emergent direction perpendicular to a plane where the display panel is located; the liquid crystal dimming panel comprises a first shading layer, and the liquid crystal display panel comprises a second shading layer; in an arrangement plane of the first light-shielding layer, the first light-shielding layer includes a plurality of first repeating units; in the setting plane of the second light shielding layer, the second light shielding layer comprises a plurality of second repeating units, the repeating period T1 of the first repeating unit and the repeating period T2 of the second repeating unit meet the condition that the ratio of T1-T2/T1 is less than or equal to 10%, and the scattering layer is arranged between the first light shielding layer and the second light shielding layer of the display panel to scatter light rays, break through the similar periodic space frequency of the first light shielding layer and the second light shielding layer, reduce the generation of interference grains, avoid the generation of Moire grains, and play a role in improving the display effect of the display panel.
Drawings
Fig. 1 is a schematic structural diagram of a display panel provided 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 schematic cross-sectional view along AA' of FIG. 2;
FIG. 4 is another schematic cross-sectional view taken along direction AA' in FIG. 2;
FIG. 5 is another schematic cross-sectional view taken along direction AA' in FIG. 2;
FIG. 6 is another schematic cross-sectional view taken along direction AA' in FIG. 2;
FIG. 7 is another schematic cross-sectional view taken along direction AA' in FIG. 2;
FIG. 8 is another schematic cross-sectional view taken along direction AA' in FIG. 2;
FIG. 9 is another schematic cross-sectional view taken along direction AA' in FIG. 2;
FIG. 10 is another schematic cross-sectional view taken along direction AA' in FIG. 2;
FIG. 11 is another schematic cross-sectional view taken along direction AA' in FIG. 2;
FIG. 12 is another schematic cross-sectional view taken along direction AA' in FIG. 2;
FIG. 13 is another schematic cross-sectional view taken along direction AA' in FIG. 2;
FIG. 14 is another schematic cross-sectional view taken along direction AA' in FIG. 2;
FIG. 15 is another schematic cross-sectional view taken along direction AA' in FIG. 2;
FIG. 16 is another schematic cross-sectional view taken along direction AA' in FIG. 2;
FIG. 17 is another schematic cross-sectional view taken along direction AA' in FIG. 2;
FIG. 18 is another schematic cross-sectional view taken along direction AA' in FIG. 2;
FIG. 19 is a schematic structural diagram of a scattering layer provided in an embodiment of the present invention;
fig. 20 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a display panel provided in the prior art. As shown in fig. 1, the display panel 100 includes a liquid crystal dimming panel 10 and a liquid crystal display panel 11 sequentially stacked in a light emitting direction (as shown in a Y direction in the figure) perpendicular to a plane of the display panel; the liquid crystal dimming panel 10 includes a first light shielding layer 101, and the liquid crystal display panel includes a second light shielding layer 201; the first light-shielding layer 101 includes a plurality of first repeating units 1011 in the arrangement plane of the first light-shielding layer 101; the second light-shielding layer 201 includes a plurality of second repeating units 2011 in the arrangement plane of the second light-shielding layer 201. Note that the first repeating unit 1011 may be formed of one light shielding structure located on the first light shielding layer 101, as shown in fig. 1; the first repeating unit 1011 may be composed of one light shielding structure located on the first light shielding layer 101 and one non-light shielding region located on the left or right side of the light shielding structure and between the two light shielding structures. Since the upper and lower display screens of the double-screen liquid crystal display product have periodic structures, such as metal wiring, color resistance, etc., X1 is used respectively&X2 represents a vibration waveform, w, of the outgoing light of the display panel passing through the first repeating unit 1011 in the liquid crystal dimming panel 10 and the second repeating unit 2011 in the liquid crystal display panel 111And w2Representing spatial frequency, X1&X2 satisfies the vibration waveform of cosine wave, wherein:
X1＝Acos(w1t)；
t2＝Acos(w2t)；
the spatial frequency is the product of the directional cosine of the wave vector of the plane wave and the reciprocal of the wavelength of the light. Between two periodic objects with similar spatial frequencies, the wave crests of the sine waves are easily interfered after being superposed to generate interference lines, i.e. Moire lines, and when the periodic arrangements of the first repeating unit 1011 and the second repeating unit 2011 are close and the spatial frequency difference is small, i.e. w is small2-w1＜＜w2+w1And the superimposed vibration waveform is represented by X, where:
then:
a and A' are constants, t is interference time, because the superposed vibration waveform X still meets the vibration waveform of cosine waves, interference lines are generated, and when the display panel has interference in both horizontal (as shown in the X direction in the figure) and vertical (as shown in the Y direction in the figure), a lattice shape is formed, so that the contrast of a display picture of the display panel is reduced, and the display effect of the display panel is influenced.
Based on the technical problems, the inventor researches and discovers that the damage of the periodic spatial frequency is the key for reducing the generation of interference grains and avoiding the generation of Moire grains. Based on this, the inventors further studied the technical solutions of the embodiments of the present invention. Specifically, the embodiment of the invention provides a display panel, which comprises a liquid crystal dimming panel and a liquid crystal display panel which are sequentially stacked in a light-emitting direction perpendicular to a plane where the display panel is located; the liquid crystal dimming panel comprises a first shading layer, and the liquid crystal display panel comprises a second shading layer; in an arrangement plane of the first light-shielding layer, the first light-shielding layer includes a plurality of first repeating units; in the setting plane of the second light shielding layer, the second light shielding layer comprises a plurality of second repeating units, and the repeating period T1 of the first repeating unit and the repeating period T2 of the second repeating unit satisfy | T1-T2|/T1 ≦ 10%; the display panel further includes a scattering layer between the first light-shielding layer and the second light-shielding layer.
By adopting the technical scheme, the scattering layer is arranged between the first light shielding layer and the second light shielding layer which are periodically arranged, the periodic spatial frequency close to the first light shielding layer and the second light shielding layer is broken by the scattering layer, so that the interference superposition of the vibration waveforms with the close periodic spatial frequency cannot be met, interference grains are reduced, the generation of mole grains is avoided, and the effects of improving the contrast and the display effect of the display panel are achieved.
The above is the core idea of the present invention, and the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention; fig. 3 is a schematic cross-sectional view along AA' of fig. 2. Referring to fig. 2 and fig. 3, a display panel 200 according to an embodiment of the present invention includes a liquid crystal dimming panel 20 and a liquid crystal display panel 21 stacked in sequence in a light emitting direction perpendicular to a plane of the display panel 200; the liquid crystal dimming panel 20 includes a first light shielding layer 201, and the liquid crystal display panel 21 includes a second light shielding layer 211; in the arrangement plane of the first light-shielding layer 201, the first light-shielding layer 201 includes a plurality of first repeating units 2011; in the arrangement plane of the second light shielding layer 211, the second light shielding layer 211 includes a plurality of second repeating units 2111, and the repetition period T1 of the first repeating unit 2011 and the repetition period T2 of the second repeating unit 2111 satisfy | T1-T2|/T1 ≦ 10%; the display panel 200 further includes a scattering layer 22 between the first light-shielding layer 201 and the second light-shielding layer 211.
Specifically, as shown in fig. 2 and fig. 3, the display panel 200 of the double-layer liquid crystal cell structure includes a liquid crystal dimming panel 20 and a liquid crystal display panel 21 that are sequentially stacked in a light-emitting direction perpendicular to a plane of the display panel 200, the liquid crystal display panel 21 is located on a light-emitting surface of the liquid crystal dimming panel 20, and is aligned and attached to form a double-layer liquid crystal structure, the display panel 200 further includes a backlight light source (not shown), the liquid crystal dimming panel 20 is located on the light-emitting surface of the backlight light source, and the backlight light source provides uniform backlight for the liquid crystal dimming panel 20. The liquid crystal dimming panel 20 includes a plurality of sub-pixels arranged in an array, and the liquid crystal dimming panel 20 realizes fine adjustment of the pixel level of backlight light emission by controlling the opening degree of the sub-pixels in different areas, so as to ensure the display effect of the liquid crystal display panel.
Further, the liquid crystal dimming panel 20 includes a first light shielding layer 201, the liquid crystal display panel 21 includes a second light shielding layer 211, and the first light shielding layer 201 and the second light shielding layer 211 are periodically arranged film layers having light shielding characteristics, such as a metal layer, a color resist layer, and the like. In the arrangement plane of the first light-shielding layer 201, the first light-shielding layer 201 includes a plurality of first repeating units 2011, and in the arrangement plane of the second light-shielding layer 211, the second light-shielding layer 211 includes a plurality of second repeating units 2111. For example, the first repeating unit 2011 and the first repeating unit 2011 may be a plurality of Thin Film Transistors (TFTs) in a driver circuit layer and a pixel circuit configured of the TFTs. The repetition period T1 of the first repeating unit 2011 and the repetition period T2 of the second repeating unit 2111 satisfy | T1-T2|/T1 ≦ 10%, it can be understood that the difference between the length of the repeating period T1 of the first repeating unit 2011 and the length of the repeating period T2 of the second repeating unit 2111 in the direction in which the repeating periods are arranged in the light-emitting plane of the display panel satisfies | T1-T2|/T1 ≦ 10%, the length of the repeating period of the first repeating unit 2011 and the length of the repeating period of the second repeating unit 2111 differ less, for example, the distance between two adjacent scanning lines, or the distance between two adjacent data lines, or the distance between two adjacent color resistors in the row direction or the column direction, when the difference in the distances is small, it is considered that backlight light provided by the backlight light source interferes to generate moire fringes when passing through the two periodically arranged light shielding structures. This embodiment is through setting up scattering layer 22 between first light shield layer 201 and second light shield layer 211, scattering layer 22 is the haze state, scattering layer 22 has scattered light's effect, utilize scattering layer 22 to break the similar periodic spatial frequency of first light shield layer 201 and second light shield layer 211, make the light that passes through first light shield layer 201 and scattering layer 22 in proper order and the light vibration waveform that passes through second light shield layer 211 no longer satisfy the interference stack condition, thereby reduce and produce the interference line between liquid crystal dimming panel 20 and the liquid crystal display panel 21, avoid producing the mole line, play the effect that improves display panel's contrast and display effect.
To sum up, the display panel provided by the embodiment of the present invention includes a liquid crystal dimming panel and a liquid crystal display panel that are sequentially stacked in a light emitting direction perpendicular to a plane where the display panel is located; the liquid crystal dimming panel comprises a first shading layer, and the liquid crystal display panel comprises a second shading layer; in an arrangement plane of the first light-shielding layer, the first light-shielding layer includes a plurality of first repeating units; in the setting plane of the second light shielding layer, the second light shielding layer comprises a plurality of second repeating units, the repeating period T1 of the first repeating unit and the repeating period T2 of the second repeating unit meet the condition that the ratio of T1-T2/T1 is less than or equal to 10%, and the scattering layer is arranged between the first light shielding layer and the second light shielding layer which are periodically arranged, so that the scattering layer is used for breaking the close periodic space frequency of the first light shielding layer and the second light shielding layer, and the vibration waveform interference superposition of the close periodic space frequency can not be met, thereby reducing the interference grains, avoiding the generation of the moire grains, and playing the role of improving the contrast and the display effect of the display panel.
Alternatively, FIG. 4 is another schematic cross-sectional view along AA' of FIG. 2; FIG. 5 is another schematic cross-sectional view taken along direction AA' in FIG. 2; FIG. 6 is another schematic cross-sectional view taken along direction AA' in FIG. 2; FIG. 7 is another schematic cross-sectional view taken along direction AA' in FIG. 2; FIG. 6 is another schematic cross-sectional view taken along direction AA' in FIG. 2; FIG. 8 is another schematic cross-sectional view taken along direction AA' in FIG. 2; FIG. 9 is another schematic cross-sectional view taken along direction AA' in FIG. 2; FIG. 10 is another schematic cross-sectional view taken along direction AA' in FIG. 2; FIG. 11 is another schematic cross-sectional view taken along direction AA' in FIG. 2; fig. 12 is another schematic cross-sectional view along AA' of fig. 2. As shown in fig. 4-12, the liquid crystal dimming panel 20 further includes a first pixel circuit 202, and the first pixel circuit 202 includes a plurality of first metal wire layers 2022; the liquid crystal display panel 21 further includes a second pixel circuit 212 and a second color film substrate 216, the second pixel circuit 212 includes a plurality of second metal wire layers 2122, and the second color film substrate 216 includes a light shielding structure 2162; the first light shielding layer 201 includes at least one of the plurality of first metal wire layers 2022, and the second light shielding layer 211 includes at least one of the plurality of second metal wire layers 2122 and/or the light shielding structure 2162.
Specifically, referring to fig. 4-12, the liquid crystal dimming panel 20 further includes a buffer layer 205 and a driving circuit layer 40 sequentially disposed on one side of the first array substrate 204, the first array substrate 204 may be flexible or rigid, for example, formed by any suitable insulating material having flexibility, and is used for blocking oxygen and moisture, preventing moisture or impurities from diffusing into the liquid crystal dimming display panel 20 through the first array substrate 204, the buffer layer 205 may cover the entire upper surface of the first array substrate 204, the driving circuit layer 40 may include a plurality of first Thin Film transistors 30 (TFTs) periodically arranged and first pixel circuits 202 formed by the first TFTs 30, and the first pixel circuits 202 are used for driving liquid crystals in the first liquid crystal layer 203 to deflect to form dimming picture information. The first pixel circuit 202 includes a plurality of first metal wire layers 2022, for example, as shown in fig. 4 to fig. 12, the present embodiment is described by taking a bottom-gate first thin film transistor 30 as an example, the structure of the driving circuit layer 40 of the liquid crystal dimming panel 20 includes a gate electrode layer 31 on the buffer layer 205, a gate insulating layer 311 on the gate electrode layer 31, an active layer 32 on the gate insulating layer 311, an interlayer insulating layer 312 on the active layer 32, a source electrode 33 and a drain electrode 34 on the interlayer insulating layer 312, the source electrode 33 and the drain electrode 34 are electrically connected (or combined) to a source region and a drain region through contact holes, respectively, a planarization layer 313 on the source electrode 33 and the drain electrode 34 of the first thin film transistor 30 has a planarization effect, a pixel electrode 50 on the planarization layer 313, and a pixel electrode insulating layer 314 on the pixel electrode 50. The gate insulating layer 311, the interlayer insulating layer 312, and the pixel electrode insulating layer 314 may be formed of an inorganic insulating layer such as silicon oxide or silicon nitride, the planarization layer 313 may be formed of an organic insulating layer, and the structure and preparation materials of the driving circuit layer 40 are not further illustrated. Among them, the multi-layer first metal wire layer 2022 includes at least one layer of the gate layer 31, the source electrode 33, the drain electrode 34, and the pixel electrode 50. Only two first thin film transistors 30 are shown in the drawing, and the structures of more first thin film transistors 30 are not shown here.
It is understood that the film structure of the liquid crystal display panel 21 is similar to the structure of the liquid crystal dimming panel 20, the liquid crystal display panel 21 further includes a second array substrate 214, and a buffer layer 215 and a driving circuit layer 40 'sequentially located on one side of the second array substrate 214, the driving circuit layer 40' may include a plurality of second thin film transistors 30 'periodically arranged and a second pixel circuit 212 formed by the second thin film transistors 30', the second pixel circuit 212 is used for driving a second liquid crystal layer 213, and as shown in fig. 4-12, the present embodiment takes the second thin film transistor 30 'of a bottom gate type as an example for structural description, and the driving circuit layer 40' of the liquid crystal display panel 21 includes a gate electrode layer 31 ', a gate insulating layer 311', an active layer 32 ', an interlayer insulating layer 312', and a source electrode 33 'and a drain electrode 34' sequentially located on the buffer layer 215, the source electrode 33 ' and the drain electrode 34 ' are electrically connected (or coupled) to the source region and the drain region through contact holes, respectively, the planarization layer 313 ' on the source electrode 33 ' and the drain electrode 34 ' of the second thin film transistor 30 ', the pixel electrode 50 ' on the planarization layer 313 ', the pixel electrode insulating layer 314 ' on the pixel electrode 50 ', the gate insulating layer 311 ', the interlayer insulating layer 312 ', and the pixel electrode insulating layer 314 ' may be formed of an inorganic insulating layer of silicon oxide or silicon nitride, etc., the planarization layer 313 ' may be formed of an organic insulating layer, and the structure and preparation material of the driving circuit layer 40 ' are not further enumerated here. Wherein the multi-layer second metal wire layer 2022 includes at least one layer of the gate layer 31 ', the source electrode 33', the drain electrode 34 ', and the pixel electrode 50'. Only two second thin film transistors 30 'are shown, and the structure of further second thin film transistors 30' is not shown here.
The liquid crystal display panel 21 further includes a second color film substrate 216, the second color film substrate 216 includes color resistors 2161 and a light shielding structure 2162 located between two adjacent color resistors 2161, and the light shielding structure 2162 includes a Black Matrix (BM) for shielding light between two adjacent color resistors 2161 and preventing light crosstalk. In a plane perpendicular to the light emitting direction of the display panel, the plurality of first metal wire layers 2022, the plurality of second metal wire layers 2122 and the light shielding structures 2162 are usually in a periodic arrangement structure, the first light shielding layer 201 includes at least one of the plurality of first metal wire layers 2022, and when the length of the repetition period of the at least one metal layer in the plurality of second metal wire layers 212 and/or the length of the repetition period of the light shielding structures 2162 is smaller than the length of the repetition period of the at least one metal layer in the plurality of first metal wire layers 2022, the second light shielding layer 211 includes at least one of the plurality of second metal wire layers 2122 and/or the light shielding structures 2162. It can be understood that the backlight light passing through at least one metal layer of the plurality of first metal line layers 2022 and the backlight light passing through at least one metal layer of the plurality of second metal line layers 2122 generate a vibration waveform to be superimposed to form an interference pattern; or, the backlight light passing through at least one metal layer of the plurality of first metal line layers 2022 and the backlight light passing through the light shielding structure 2162 generate a vibration waveform superposition to form an interference pattern; or, the backlight light passing through at least one metal layer of the plurality of first metal line layers 2022 and the backlight light passing through at least one layer of the plurality of second metal line layers 2122 and the light shielding structure 2162 generate vibration waveform superposition to form interference grains, and the output vibration waveform of the display panel 200 interferes the superposition to form moire grains, thereby reducing the contrast and the display effect of the display panel.
It should be noted that the display panel 200 further includes other film layers to cooperate with each other to realize image display, which is not listed here.
It should be noted that fig. 4-12 show the liquid crystal dimming panel 20 and the liquid crystal display panel 21 in a non-contact manner for explaining the structures of the liquid crystal dimming panel 20 and the liquid crystal display panel 21, respectively, and for displaying reference numerals, and the structures are only for explaining the structures and for displaying reference numerals here, and are not limited to the actual structures of the display panel, and the liquid crystal dimming panel 20 and the liquid crystal display panel 21 in the actual structures are disposed in a stacked contact manner. In the following related drawings, the liquid crystal dimming panel 20 and the liquid crystal display panel 21 are shown in a non-contact manner for the purpose of explaining the structures of the liquid crystal dimming panel 20 and the liquid crystal display panel 21 and displaying reference numerals, respectively, and will not be described again.
On the basis of the foregoing embodiment, with continued reference to fig. 4-12, the first light shielding layer 201 includes at least one of the plurality of first metal wire layers 2022, and the second light shielding layer 211 includes at least one of the plurality of second metal wire layers 2122; the display panel 200 further includes a first film 60 and a first substrate 70 between the first light shielding layer 201 and the second light shielding layer 211, the first film 60 is located on the side of the first metal wire layer 2022 close to the liquid crystal display panel 21, and the first substrate 70 is located on the side of the first film 60 close to the second metal wire layer 2122; the scattering layer 22 multiplexes the first film layer 60 and/or the first base substrate 70.
Specifically, as shown in fig. 4 to 12, when the difference between the length of the repetition period of at least one metal layer in the plurality of second metal line layers 212 and the length of the repetition period of at least one metal layer in the plurality of first metal line layers 2022 is small, the second light shielding layer 211 includes at least one of the plurality of second metal line layers 2122. For example, referring to fig. 3 again, the first repeating unit 2011 may be a first thin film transistor 30 constituting the first pixel circuit 202 in a periodic arrangement, and the second repeating unit 2111 may be a second thin film transistor 30' constituting the second pixel circuit 212 in a periodic arrangement; alternatively, the first repeating unit 2011 may be the pixel electrode 50 in the liquid crystal dimming panel 20, and the second repeating unit 2111 may be the pixel electrode 50' of the liquid crystal display panel 21. As shown in the direction Y in the figure, the display panel 200 further includes a first film layer 60 and a first substrate 70 between the first light shielding layer 201 and the second light shielding layer 211, and exemplarily, as shown in fig. 4 to 12, in the liquid crystal dimming panel 20, the first film layer 60 may include at least one of a gate insulating layer 311, an interlayer insulating layer 312, a planarization layer 313, a pixel electrode insulating layer 314, a gate insulating layer 311 ', an interlayer insulating layer 312 ', and a planarization layer 313 '. The liquid crystal dimming panel 20 may further include a first color filter substrate 206, the liquid crystal display panel 21 may further include a second array substrate 212, the first color filter substrate 206 includes a first color filter substrate 2061, the second array substrate 212 includes a second array substrate 214, the first substrate 70 may include the first color filter substrate 2061 in the liquid crystal dimming panel 20 and the second array substrate 214 of the liquid crystal display panel 21, and the scattering layer 22 may multiplex at least one of the gate insulating layer 311, the interlayer insulating layer 312, the planarization layer 313, the pixel electrode insulating layer 314, the gate insulating layer 311 ', the interlayer insulating layer 312 ', and the planarization layer 313 ', and/or at least one of the first color filter substrate 2061 and the second array substrate 214. The first light-shielding layer 201 may be the gate layer 31, and the second light-shielding layer 211 may be at least one of the plurality of second metal wire layers 2122, as shown in fig. 4, the scattering layer 22 may be multiplexed with the interlayer insulating layer 312; as shown in fig. 5, the scattering layer 22 multiplexes the planarization layer 313; as shown in fig. 6, the scattering layer 22 multiplexes the pixel electrode insulating layer 314; as shown in fig. 7, the scattering layer 22 is multiplexed with the first color filter substrate 2061; as in fig. 8, the scattering layer 22 multiplexes the second array substrate 214; as shown in fig. 9, the scattering layer 22 multiplexes the planarization layer 313, the first color filter substrate 2061, and the second array substrate 214; or the second light shielding layer 211 is at least one of the source 33 ', the drain 34' and the pixel electrode 50 'in the multi-layer second metal wire layer 2122, that is, may be any one or more of the second metal wire layer 2122, as shown in fig. 10, the scattering layer 22 may multiplex the gate insulating layer 311'; or the second light shielding layer 211 is a pixel electrode 50 ' in the multi-layer second metal wire layer 2122, as shown in fig. 11 and 12, the scattering layer 22 may multiplex at least one of the interlayer insulating layer 312 ' and the planarization layer 313 ', and by flexibly multiplexing the first film layer 60 as the scattering layer 22, the scattering layer 22 is utilized to break the interference superposition of regular periodic optical paths between the multi-layer first metal wire layer 2022 and the multi-layer second metal wire layer 2122, so as to reduce the moire generation, and improve the contrast and the display effect of the display panel.
Fig. 13 is another schematic cross-sectional view along direction AA' of fig. 2. Referring to fig. 13, since the moire of the display panel is caused by the interference variation generated by the upper and lower periodic spatial frequencies, therefore, the brightness uniformity of the lcd panel 21 is very important, the scattering layer 22 can effectively adjust the brightness uniformity of the lcd panel 21, meanwhile, considering that the distance t between the scattering layer 22 and the first light shielding layer 201 affects the light transmittance of the display panel, the Ratio of the maximum value to the minimum value of the transmittance is defined as a display Contrast Ratio (CR), the inventor has found that the total amount of light entering the eyes of the observer can be calculated by ray tracing from the reversibility of light, when the distance t between the scattering layer 22 and the first light-shielding layer 201 is gradually increased, the larger the display contrast CR value, it shows that the greater the light transmittance, the less the interference superposition, and the less the moire phenomenon has an effect on the display effect.
On the basis of the above embodiment, fig. 14 is another schematic cross-sectional view along the direction AA' in fig. 2; FIG. 15 is another schematic cross-sectional view taken along direction AA' in FIG. 2; fig. 16 is another schematic cross-sectional view along direction AA' of fig. 2. As shown in fig. 14 to fig. 16, optionally, the first light shielding layer 201 includes at least one of the plurality of first metal wire layers 2022, and the second light shielding layer 211 includes a light shielding structure 2162; the display panel 200 further includes a second film layer 60 'located between the first light shielding layer 201 and the second light shielding layer 211, the second film layer 60' being located on a side of the second metal wire layer 2122 close to the light shielding structure 2162; the scattering layer 22 multiplexes the second film layer 60'.
Specifically, as shown in fig. 14-16, when the difference between the length of the repeating period of the light shielding structure 2162 and the length of the repeating period of at least one metal layer of the plurality of metal layer 2022 is small, the second light shielding layer 211 includes the light shielding structure 2162, the light shielding structure 2162 may be a black matrix between two adjacent color resistors 2161, the liquid crystal display panel 21 may further include a common electrode 215 located on a side of the second liquid crystal layer 213 away from the pixel electrode 50 ', and an interlayer insulating layer 315 ' located between the common electrode 215 and the light shielding structure 2162, and the display panel 200 further includes a second film 60 ' located between the first light shielding layer 201 and the second light shielding layer 211. Preferably, the second film layer 60 ' may include at least one of a pixel electrode insulating layer 314 ' and an interlayer insulating layer 315 ', and the scattering layer 22 multiplexes at least one of the pixel electrode insulating layer 314 ' and the interlayer insulating layer 315 '. For example, in fig. 13, the scattering layer 22 multiplexes the pixel electrode insulating layer 314'; in fig. 14, the scattering layer 22 multiplexes the interlayer insulating layer 315'; as shown in fig. 15, the scattering layer 22 multiplexes the pixel electrode insulating layer 314 'and the interlayer insulating layer 315', the scattering layer 22 is disposed on one side of the second metal wire layer 2122 close to the light shielding structure 2162, so as to increase the distance between the first metal wire layer 2022 and the scattering layer 22, and the scattering layer 22 is used to break the interference superposition of the regular periodic light paths between the multiple first metal wire layers 2022 and the light shielding structure 2162, thereby further reducing the moire generation, improving the light transmittance, increasing the contrast ratio CR of the display panel, and enhancing the display effect.
Based on the above embodiment, as shown in fig. 4 to 16, the first film layer 60 includes a first insulating layer 601 and a second insulating layer 602; in the light emitting direction of the display panel (as shown in the Y direction in the figure), the second insulating layer 601 is located on one side of the first insulating layer 602 close to the first substrate 70; the scattering layer 22 multiplexes at least the second insulating layer.
Further referring to fig. 4-16 of the present embodiment, the first film 60 includes a first insulating layer 601 and a second insulating layer 602, and as shown in the direction Y in the figure, when at least two insulating layers exist between the first light shielding layer 201 and the second light shielding layer 211, for example, the first light shielding layer 201 is the gate electrode layer 31, the second light shielding layer 211 is the gate electrode layer 31 ', the first insulating layer 601 may be the gate insulating layer 311, the second insulating layer 602 may be any one of the interlayer insulating layer 312, the planarization layer 313, the pixel electrode insulating layer 314, the second array substrate 214, the gate insulating layer 311', the interlayer insulating layer 312 ', and the planarization layer 313' on the gate insulating layer 311, the scattering layer 22 multiplexes the insulating layers farther from the first light shielding layer 201 than the gate insulating layer 311, and in the case of not changing the thickness of the existing film of the display panel, the second insulating layer 602 farther from the first light shielding layer 201 is preferably used, the distance between the scattering layer 22 and the first light shielding layer 201 can be increased to achieve the purposes of increasing the display contrast ratio CR and the light transmittance, reducing interference superposition, reducing the influence of the moire phenomenon on the display effect, and further optimizing the display effect.
Further, as shown in fig. 10 to fig. 16, optionally, when the light shielding structure 2162 is a black matrix, the second film 60 'may further include at least one of a gate insulating layer 311', an interlayer insulating layer 312 ', a planarization layer 313', a pixel electrode insulating layer 314 ', and an interlayer insulating layer 315', and preferably, the scattering layer 22 multiplexes insulating layers relatively distant from the first light shielding layer 201, for example, the first light shielding layer 201 is the pixel electrode 50, the second light shielding layer 211 is the pixel electrode 50 ', the first insulating layer 601 may be the pixel electrode insulating layer 314', and the scattering layer 22 multiplexes the interlayer insulating layer 315 'distant from the pixel electrode 50', as shown in fig. 14.
On the basis of the foregoing embodiment, fig. 17 is another schematic cross-sectional view along the AA' direction in fig. 2, and as shown in fig. 7, fig. 8 and fig. 17, optionally, the first substrate 70 includes a first color filter substrate 2061 and a second array substrate 214, and the display panel further includes a bonding glue layer 80 located between the first color filter substrate 2061 and the second array substrate 214; the scattering layer 22 multiplexes at least one of the first color filter substrate 2061, the second array substrate 214, and the adhesive layer 80.
Specifically, as shown in fig. 7, 8 and 17, the first substrate 70 may include a first color film substrate 2061 of the liquid crystal dimming panel and a second array substrate 214 of the liquid crystal display panel 21, the adhesive layer 80 is used for mounting the liquid crystal dimming panel 20 and the liquid crystal display panel 21 to be tightly attached, and the scattering layer 22 multiplexes at least one of the first color film substrate 2061, the second array substrate 214 and the adhesive layer 80, so as to effectively homogenize the emergent light of the liquid crystal dimming panel 20 and prevent the liquid crystal dimming panel 20 and the liquid crystal display panel 21 from forming an interference moire phenomenon. As shown in fig. 17, the scattering layer 22 is a laminated adhesive layer 80, and the original film structure of the display panel is not required to be changed, so that the operation is simple and easy to implement, and the display effect of the display panel is less affected.
On the basis of the above embodiment, fig. 18 is another schematic cross-sectional view along the direction AA' in fig. 2. As shown in fig. 18, the scattering layer 22 is provided in the liquid crystal display panel 21; the liquid crystal dimming panel 20 further includes a first array substrate 204 and a first color film substrate 2061, and the liquid crystal display panel 21 further includes a second array substrate 214 and a second color film substrate 2163; the thickness t1 of the second array base substrate 214 is greater than the thickness t2 of the first array base substrate 204, and/or the thickness t3 of the first color filter base substrate 2061 is greater than the thickness t4 of the second color filter base substrate 2163.
Specifically, as shown in fig. 18, for example, as shown in fig. 3 and 18, in order to further increase the distance t between the scattering layer 22 and the first light shielding layer 201, it is preferable that the scattering layer 22 is disposed in the liquid crystal display panel 21 above the adhesive layer 80, so that the distance t is larger, and the position of the diffusion film 22 has an advantage of being easier to adjust. Further, the thickness of the substrate between the first light-shielding layer 201 and the second light-shielding layer 211 may be increased, for example, the thickness t1 of the second array substrate 214 may be set to be greater than the thickness t2 of the first array substrate 204; or, the thickness t3 of the first color film substrate 2061 is set to be greater than the thickness t4 of the second color film substrate 2163; or the thickness t1 of the second array substrate 214 is larger than the thickness t2 of the first array substrate 204, and the thickness t3 of the first color film substrate 2061 is larger than the thickness t4 of the second color film substrate 2163, so as to increase the distance t between the scattering layer 22 and the first light-shielding layer 201, further reduce or even eliminate the moire phenomenon, increase the display contrast ratio CR, and improve the display effect.
Experimental tests show that under the condition that the diffusion haze of the scattering layer 22 is fixed, the line widths of the repetition periods of the first repeatable units 2022 which can be designed are different at different distances t, wherein the diffusion haze (haze) refers to the percentage of the light flux scattered by the material to the light flux transmitted by the material, and is also called turbidity, so as to measure the turbidity degree of the transparent or semitransparent material, and is used as an index for representing scattering. Taking the first light-shielding layer 201 as the multilayer first metal wire layer 2022 in the first color film substrate 206, taking the second light-shielding layer 201 as the black matrix BM in the liquid crystal display panel as an example, the repetition period of the first repeating unit 2111 is the BM line width, and increasing the thickness of the substrate glass and the distance t between the scattering layer 22 and the first light-shielding layer 201 can increase the design range of the BM line width of the black matrix BM, and the larger the maximum line width of the BM is, the larger the structural design space of the display panel is, which is beneficial to the structural design of the display panel; further, it is fixed to set up the BM linewidth, when increasing distance t, can reduce the half angle value of scattering layer 22, and the half angle value is less, and display panel's light transmittance is big more, and it is big more to show contrast CR, and the display effect promotes more obviously. The half-angle value refers to an included angle between a direction in which the luminous intensity value of the material is half of the axial intensity value and the luminous axial direction (normal direction), 2 times of the half-angle value is a visual angle (or called half-power angle), and the larger the half-angle value is, the more divergent the light rays are; the smaller the half angle value is, the more concentrated the light is, and the clearer the display effect is.
It should be noted that, considering the problem of hole halo (hole) of the whole lcd, the smaller the distance T between the first array substrate 204 of the lcd panel 20 and the second color filter substrate 2163 of the lcd panel 21, the better it is, without affecting the display effect, the thickness T1 of the second array substrate 214 and the thickness T3 of the first color filter substrate 2061 are set within the reasonable range as much as possible, and the specific values are related to the film layer arrangement of the lcd panel, and are not limited herein.
On the basis of the above embodiment, fig. 19 is a schematic structural diagram of a scattering layer provided in an embodiment of the present invention. As shown in fig. 3 to 19, the scattering layer 22 includes a scattering layer substrate 221 and scattering particles 222 doped in the scattering layer substrate 221; the refractive index of the scattering particles 222 is n1, and the refractive index of the scattering layer substrate is n2, wherein n1 ≠ n 2.
Specifically, in combination with the scattering layer 22 shown in fig. 3 to 19, at least one of the first film layer 60, the second film layer 60', the first substrate 70, and the adhesive layer 80 provided in the foregoing embodiments may be multiplexed, the scattering particles 222 are doped in the scattering layer base 221 through a high temperature CVD process, and the scattering layer 22 is uniformly atomized through processes such as uniform stirring, coating, baking, and the like. Wherein, the scattering particle 222 shape can be spherical, cubic and nonstandard shape etc., specific shape is not restricted here, refractive index n1 that sets up scattering particle 222 is different with the refractive index n2 of scattering layer base 221, realize the refraction index differentiation in the membrane layer, backlight changes propagation path after the scattering of scattering layer 22, and then reach the haze effect, make the light through first light shield layer 201, scattering layer 22 and the light vibration waveform through second light shield layer 211 no longer satisfy the interference stack condition, can reduce or even eliminate the interference line, avoid producing the moire, play the effect that improves display panel's contrast and display effect.
On the basis of the above-described embodiment, as shown in fig. 2 to 19, the scattering particles 222 include transparent resin particles or metal particles.
Specifically, the scattering particles 222 include transparent resin particles or metal particles, the transparent resin particles can reduce light shielding and improve the light-emitting rate of the display panel, and optionally, the diameter of the transparent resin particles is D1, and D1 is less than or equal to 5 μm and less than or equal to 100 μm. For example, if resin particles such as phenolic resin and polyvinyl chloride resin are adopted, the transparent resin particles with the size of micron are selected, so that the light rays can be uniformly scattered while the light rays are not shielded, the light rays are prevented from being interfered and superposed, the mole lines are reduced, and the contrast and the display effect of the display panel can be effectively improved. Alternatively, transparent resin particles may be provided as the scattering particles 222 in the first base substrate 70.
Further, in consideration of the fact that the resin material may melt due to the high temperature during the preparation process of the insulating layer, the insulating layer may be made of high-temperature-resistant metal particles or high-temperature-resistant transparent resin particles to scatter light. Optionally, the diameter of the metal particles is D2, and D2 is not less than 5nm and not more than 10 nm. For example, silver ions and the like adopt metal particles with smaller sizes on the premise of minimum influence on transmittance, thereby not only meeting the scattering effect on light, but also facilitating the doping of the metal particles.
Based on the same inventive concept, the embodiment of the invention also provides a display device. Fig. 20 is a schematic structural diagram of a display device according to an embodiment of the present invention, and as shown in fig. 20, the display device includes any one of the display panels provided in the foregoing embodiments. Illustratively, as shown in fig. 20, the display device 300 includes a display panel 200. Therefore, the display device also has the advantages of the display panel in the above embodiments, and the same points can be understood by referring to the above explanation of the display panel, which is not repeated herein.
The display device 300 provided in the embodiment of the present invention may be a mobile phone as shown in fig. 20, and may also be any electronic product with a display function, including but not limited to the following categories: the touch screen display system comprises a television, a notebook computer, a desktop display, a tablet computer, a digital camera, an intelligent bracelet, intelligent glasses, a vehicle-mounted display, industrial control equipment, a medical display screen, a touch interaction terminal and the like, and the embodiment of the invention is not particularly limited in this respect.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (12)
1. The display panel is characterized by comprising a liquid crystal dimming panel and a liquid crystal display panel which are sequentially stacked in a light emergent direction perpendicular to a plane where the display panel is located;
the liquid crystal dimming panel comprises a first shading layer, and the liquid crystal display panel comprises a second shading layer; in an arrangement plane of the first light-shielding layer, the first light-shielding layer includes a plurality of first repeating units; in an arrangement plane of the second light shielding layer, the second light shielding layer includes a plurality of second repeating units, and a repetition period T1 of the first repeating unit and a repetition period T2 of the second repeating unit satisfy | T1-T2|/T1 ≦ 10%;
the display panel further includes a scattering layer between the first light-shielding layer and the second light-shielding layer.
2. The display panel of claim 1, wherein the liquid crystal dimming panel further comprises a first pixel circuit comprising a plurality of first metal line layers;
the liquid crystal display panel further comprises a second pixel circuit and a second color film substrate, wherein the second pixel circuit comprises a plurality of second metal wire layers, and the second color film substrate comprises a shading structure;
the first shading layer comprises at least one of the first metal wire layers, and the second shading layer comprises at least one of the second metal wire layers and/or the shading structure.
3. The display panel according to claim 2, wherein the first light shielding layer comprises at least one of a plurality of the first metal line layers, and the second light shielding layer comprises at least one of a plurality of the second metal line layers;
the display panel further comprises a first film layer and a first substrate, wherein the first film layer and the first substrate are positioned between the first shading layer and the second shading layer, the first film layer is positioned on one side, close to the liquid crystal display panel, of the first metal wire layer, and the first substrate is positioned on one side, close to the second metal wire layer, of the first film layer;
the scattering layer multiplexes the first membrane layer and/or the first substrate.
4. The display panel according to claim 2, wherein the first light shielding layer comprises at least one of the plurality of first metal line layers, and the second light shielding layer comprises the light shielding structure;
the display panel further comprises a second film layer positioned between the first shading layer and the second shading layer, and the second film layer is positioned on one side, close to the shading structure, of the second metal wire layer;
the scattering layer multiplexes the second membrane layer.
5. The display panel according to claim 3, wherein the first film layer comprises a first insulating layer and a second insulating layer;
in the light emergent direction of the display panel, the second insulating layer is positioned on one side of the first insulating layer close to the first substrate;
the scattering layer multiplexes at least the second insulating layer.
6. The display panel of claim 3, wherein the first substrate comprises a first color filter substrate and a second array substrate, and further comprising a bonding glue layer between the first color filter substrate and the second array substrate;
and the scattering layer multiplexes at least one of the first color film substrate, the second array substrate and the bonding glue layer.
7. The display panel according to claim 1, wherein the scattering layer is provided in the liquid crystal display panel;
the liquid crystal dimming panel further comprises a first array substrate and a first color film substrate, and the liquid crystal display panel further comprises a second array substrate and a second color film substrate;
the thickness of the second array substrate is greater than that of the first array substrate, and/or the thickness of the first color film substrate is greater than that of the second color film substrate.
8. The display panel according to claim 1, wherein the scattering layer comprises a scattering layer substrate and scattering particles doped in the scattering layer substrate;
the refractive index of the scattering particles is n1, the refractive index of the scattering layer substrate is n2, wherein n1 ≠ n 2.
9. The display panel according to claim 1, wherein the scattering particles comprise transparent resin particles or metal particles.
10. The display panel according to claim 9, wherein the transparent resin particles have a diameter of D1, 5 μm. ltoreq. D1. ltoreq.100 μm.
11. The display panel according to claim 9, wherein the metal particles have a diameter D2, D2 ≦ 10nm, 5nm ≦ D2 ≦ D.
12. A display device characterized by comprising the display panel according to any one of claims 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210179469.0A CN114415417B (en) | 2022-02-25 | 2022-02-25 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210179469.0A CN114415417B (en) | 2022-02-25 | 2022-02-25 | Display panel and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114415417A true CN114415417A (en) | 2022-04-29 |
| CN114415417B CN114415417B (en) | 2023-10-24 |
Family
ID=81260729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210179469.0A Active CN114415417B (en) | 2022-02-25 | 2022-02-25 | Display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114415417B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043282A (en) * | 2009-10-14 | 2011-05-04 | Nec液晶技术株式会社 | Optical writing device |
| US20160139454A1 (en) * | 2013-07-30 | 2016-05-19 | Sharp Kabushiki Kaisha | Light diffusion member, method for manufacturing same, and display device |
| CN107703670A (en) * | 2017-10-23 | 2018-02-16 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| US20180143468A1 (en) * | 2015-05-27 | 2018-05-24 | Panasonic Intellectual Property Management Co., Ltd. | Optical device |
| US20190285936A1 (en) * | 2018-03-19 | 2019-09-19 | A.U. Vista, Inc. | Liquid crystal display device and method of forming the same |
| US20190331955A1 (en) * | 2018-04-27 | 2019-10-31 | A.U. Vista, Inc. | Color sequential display device and display method thereof |
-
2022
- 2022-02-25 CN CN202210179469.0A patent/CN114415417B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043282A (en) * | 2009-10-14 | 2011-05-04 | Nec液晶技术株式会社 | Optical writing device |
| US20160139454A1 (en) * | 2013-07-30 | 2016-05-19 | Sharp Kabushiki Kaisha | Light diffusion member, method for manufacturing same, and display device |
| US20180143468A1 (en) * | 2015-05-27 | 2018-05-24 | Panasonic Intellectual Property Management Co., Ltd. | Optical device |
| CN107703670A (en) * | 2017-10-23 | 2018-02-16 | 京东方科技集团股份有限公司 | A kind of display panel and display device |
| US20190285936A1 (en) * | 2018-03-19 | 2019-09-19 | A.U. Vista, Inc. | Liquid crystal display device and method of forming the same |
| US20190331955A1 (en) * | 2018-04-27 | 2019-10-31 | A.U. Vista, Inc. | Color sequential display device and display method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114415417B (en) | 2023-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107632453B (en) | Display panel, manufacturing method thereof and display device | |
| US7142272B2 (en) | Liquid crystal display device | |
| US7990506B2 (en) | Liquid crystal display device and electronic apparatus | |
| CN109541865A (en) | Array substrate, display panel and display device | |
| CN110459581B (en) | Display panel and display device | |
| US8520173B2 (en) | Display device | |
| WO2017020518A1 (en) | Array substrate, liquid crystal display panel and display device | |
| WO2016206261A1 (en) | Viewing angle enlarging film and wide viewing angle thin film transistor liquid crystal display device comprising the same | |
| CN110299085B (en) | Display panel and display device | |
| CN112558337A (en) | Liquid crystal display device with switchable viewing angle and driving method thereof | |
| WO2022036740A1 (en) | Liquid crystal display apparatus and electronic device | |
| JP5251357B2 (en) | LIGHTING DEVICE, LIQUID CRYSTAL DISPLAY DEVICE, AND ELECTRONIC DEVICE | |
| US6954244B2 (en) | Reflection liquid crystal display device with reflection electrode region having two widths | |
| US6657684B2 (en) | Reflective LCD with reflector having particular direction to illumination device | |
| US20240069370A1 (en) | Display module and display apparatus | |
| CN114415417B (en) | Display panel and display device | |
| WO2003071343A1 (en) | A liquid crystal display | |
| KR20080093617A (en) | Display apparatus | |
| KR102516687B1 (en) | Reflective control film and display apparatus comprising the same | |
| CN114930234B (en) | Display panel, manufacturing method thereof and display device | |
| CN114545676B (en) | Color filter and display panel | |
| CN114253022B (en) | Display device | |
| CN114627771B (en) | Display panel and display device | |
| JP2003337344A (en) | Semitransmission type liquid crystal display device | |
| CN116520608A (en) | Display module and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |