CN106200169B - liquid crystal display panel and method for manufacturing the same - Google Patents
liquid crystal display panel and method for manufacturing the same Download PDFInfo
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- CN106200169B CN106200169B CN201610538291.9A CN201610538291A CN106200169B CN 106200169 B CN106200169 B CN 106200169B CN 201610538291 A CN201610538291 A CN 201610538291A CN 106200169 B CN106200169 B CN 106200169B
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 131
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 21
- 239000000758 substrate Substances 0.000 claims abstract description 43
- 239000010409 thin film Substances 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 156
- 125000006850 spacer group Chemical group 0.000 claims description 24
- 230000005684 electric field Effects 0.000 claims description 10
- 230000003071 parasitic effect Effects 0.000 claims description 9
- 239000011159 matrix material Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
-
- 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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
-
- 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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136222—Colour filters incorporated in the active matrix substrate
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Liquid Crystal (AREA)
- Geometry (AREA)
Abstract
The invention discloses a liquid crystal display panel and a manufacturing method thereof. The liquid crystal display panel comprises a display device panel, a liquid crystal layer and an alignment panel. The display device panel comprises a substrate, a first display device layer, a second display device layer and a third display device layer. A first display device layer disposed on the substrate, the first display device layer including a signal line, a common line, and a thin film transistor switch; the second display device layer is arranged on the first display device layer and comprises a color resistance layer and a planarization layer; the third display device layer is arranged on the second display device layer and comprises a pixel electrode and a shading control electrode, and the shading control electrode is connected with the common line; the light shielding control electrode is used for receiving a preset voltage from the common line so as to form a liquid crystal light shielding block in the liquid crystal layer together with the common electrode in the alignment panel, and the liquid crystal light shielding block is used for shielding light emitted by one of two adjacent pixel units of the liquid crystal display panel to the other. The invention can improve the aperture opening ratio.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a liquid crystal display panel and a manufacturing method thereof.
[ background of the invention ]
A conventional display device panel using a technology (COA) of integrating a Color-filter On Array panels with Color-resist layers includes a scan line, a data line, a common line, a thin film transistor switch, a shield electrode, a Color-resist layer, and a pixel electrode, and the thin film transistor switch is connected to the scan line, the data line, and the pixel electrode.
The shielding electrode is used for reducing the capacitance value of a parasitic capacitance formed by the data line and the pixel electrode so as to prevent the pixel electrode from being interfered by the data line.
however, the aperture ratio of the above conventional display device panel is low due to the presence of the shielding electrode.
Therefore, a new technical solution is needed to solve the above technical problems.
[ summary of the invention ]
the invention aims to provide a liquid crystal display panel and a manufacturing method thereof, which can improve the aperture opening ratio of the liquid crystal display panel.
in order to solve the problems, the technical scheme of the invention is as follows:
A liquid crystal display panel, comprising: a display device panel, the display device panel comprising: a substrate; a first display device layer disposed on the substrate, the first display device layer including a signal line, a common line, and a thin film transistor switch; a second display device layer disposed on the first display device layer, the second display device layer including a color-resist layer and a planarization layer disposed on the color-resist layer; a third display device layer disposed on the second display device layer, the third display device layer including a pixel electrode, a light-shielding control electrode, the light-shielding control electrode being connected to the common line; a liquid crystal layer; the alignment panel and the display device panel are combined into a whole, and the liquid crystal layer is arranged between the alignment panel and the display device panel; the light shielding control electrode is used for receiving a preset voltage from the common line so as to form a liquid crystal light shielding block in the liquid crystal layer together with the common electrode in the alignment panel, the liquid crystal light shielding block is a part of the liquid crystal layer between the light shielding control electrode and the common electrode, and the liquid crystal light shielding block is used for shielding light emitted to the other one of two adjacent pixel units of the liquid crystal display panel; the liquid crystal display panel is a curved panel, and the liquid crystal shading block is also used for avoiding the phenomenon of poor display in the liquid crystal display panel caused by the offset of a black matrix layer in the alignment panel when the display device panel and the alignment panel are bent; the third display device layer further comprises a light shielding member and a spacer, the light shielding member covers the light shielding control electrode, and the light shielding member and the liquid crystal light shielding block together shield light rays emitted from one of the two adjacent pixel units to the other; the shading control electrode is also used for shielding the interference of an electric field formed by the charges in the signal line on the pixel electrode; the spacer is disposed on the light shielding control electrode, the spacer and the light shielding member are formed in the same photo-masking process, and the height of the spacer in a predetermined direction is greater than the height of the light shielding member in the predetermined direction, wherein the predetermined direction is a direction perpendicular to the substrate and directed from the first display device layer to the second display device layer.
in the above liquid crystal display panel, a straight line corresponding to at least a part of the light-shielding control electrode is parallel to the signal line, the light-shielding control electrode is located above the signal line in a predetermined direction, a width of a cross section of the light-shielding control electrode is greater than a width of a cross section of the signal line, and the light-shielding control electrode has a predetermined distance from an adjacent pixel electrode; the shading control electrode comprises a first side edge and a second side edge, the signal line is provided with a third side edge and a fourth side edge, the projection of the first side edge on the substrate and the projection of the third side edge on the substrate have a first distance, and the projection of the second side edge on the substrate and the projection of the fourth side edge on the substrate have a second distance.
in the above liquid crystal display panel, the second display device layer is configured to make light passing through the display device panel form a color corresponding to a color block in the color resistance layer, and to increase a distance between the pixel electrode and the signal line in the predetermined direction, so as to reduce a parasitic capacitance formed by the pixel electrode and the signal line.
A method of manufacturing a liquid crystal display panel, the method comprising the steps of: A. manufacturing a display device panel; B. manufacturing an alignment panel; C. combining the display device panel and the alignment panel into a whole, and arranging a liquid crystal layer between the alignment panel and the display device panel; wherein the step A comprises the following steps: a1, disposing a first display device layer on a substrate, wherein the first display device layer includes a signal line, a common line, and a thin film transistor switch; a2, arranging a second display device layer on the first display device layer, wherein the second display device layer comprises a color resistance layer and a planarization layer, and the planarization layer is arranged on the color resistance layer; a3, arranging a third display device layer on the second display device layer, wherein the third display device layer comprises a pixel electrode and a light-shielding control electrode, and the light-shielding control electrode is connected with the common line; the light shielding control electrode is used for receiving a preset voltage from the common line so as to form a liquid crystal light shielding block in the liquid crystal layer together with the common electrode in the alignment panel, the liquid crystal light shielding block is a part of the liquid crystal layer between the light shielding control electrode and the common electrode, and the liquid crystal light shielding block is used for shielding light emitted to the other one of two adjacent pixel units of the liquid crystal display panel; the liquid crystal display panel is a curved panel, and the liquid crystal shading block is also used for avoiding the phenomenon of poor display in the liquid crystal display panel caused by the offset of a black matrix layer in the alignment panel when the display device panel and the alignment panel are bent; the step a3 includes: a31, arranging the pixel electrode and the shading control electrode on the planarization layer; a32, arranging a light shielding member and a spacer on the light shielding control electrode; the light shielding member covers the light shielding control electrode, the light shielding member and the liquid crystal light shielding block are used for shielding light rays emitted from one of two adjacent pixel units to the other, the light shielding control electrode is also used for shielding interference of an electric field formed by charges in the signal line to the pixel electrode, the spacer and the light shielding member are formed in the same photomask process, and the height of the spacer in a preset direction is larger than that of the light shielding member in the preset direction, wherein the preset direction is a direction which is perpendicular to the substrate and points to the second display device layer from the first display device layer.
In the above method for manufacturing a liquid crystal display panel, a straight line corresponding to at least a part of the light-shielding control electrode is parallel to the signal line, the light-shielding control electrode is located above the signal line in a predetermined direction, a width of a cross section of the light-shielding control electrode is larger than a width of a cross section of the signal line, and the light-shielding control electrode has a predetermined distance from an adjacent pixel electrode; the shading control electrode comprises a first side edge and a second side edge, the signal line is provided with a third side edge and a fourth side edge, the projection of the first side edge on the substrate and the projection of the third side edge on the substrate have a first distance, and the projection of the second side edge on the substrate and the projection of the fourth side edge on the substrate have a second distance.
In the above method for manufacturing a liquid crystal display panel, the second display device layer is configured to make light passing through the display device panel form a color corresponding to a color block in the color resist layer, and to increase a distance between the pixel electrode and the signal line in the predetermined direction, so as to reduce a parasitic capacitance formed between the pixel electrode and the signal line.
Compared with the prior art, the invention can improve the aperture opening ratio of the liquid crystal display panel.
In order to make the aforementioned and other objects of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
[ description of the drawings ]
Fig. 1 is a plan view of a display device panel in a liquid crystal display panel of the present invention;
FIG. 2 is a schematic view of section A-A' of FIG. 1;
FIG. 3 is a schematic view of section B-B' of FIG. 1;
FIG. 4 is a flow chart of a method for manufacturing a liquid crystal display panel according to the present invention;
FIG. 5 is a flowchart of the steps in FIG. 4 for making a display device panel;
Fig. 6 is a flowchart of the step of providing a third display device layer on the second display device layer in fig. 5.
[ detailed description ] embodiments
The word "embodiment" as used herein means an example, instance, or illustration. In addition, the articles "a" and "an" as used in this specification and the appended claims may generally be construed to mean "one or more" unless specified otherwise or clear from context to be directed to a singular form.
the Liquid Crystal Display panel of the present invention may be a TFT-LCD (Thin Film Transistor Liquid Crystal Display).
Referring to fig. 1, 2 and 3, fig. 1 is a plan view of a display device panel in a liquid crystal display panel of the present invention, fig. 2 is a schematic view of a section a-a 'in fig. 1, and fig. 3 is a schematic view of a section B-B' in fig. 1.
the liquid crystal display panel comprises a display device panel, a liquid crystal layer and an alignment panel, wherein the alignment panel and the display device panel are combined into a whole, the liquid crystal layer is arranged between the alignment panel and the display device panel, and the liquid crystal layer comprises liquid crystal molecules.
The display device panel comprises a substrate, a first display device layer 201, a second display device layer 202 and a third display device layer 203.
the first display device layer 201 is disposed on the substrate, the first display device layer 201 includes a signal line, a common line, and a thin film transistor switch, the signal line includes a scan line 101 and a data line 102, the thin film transistor switch includes a gate electrode, a source electrode, and a drain electrode, the scan line 101 is connected to the gate electrode, and the data line 102 is connected to the source electrode.
The second display device layer 202 is disposed on the first display device layer 201, the second display device layer 202 includes a color-resist layer and a planarization (OC) layer 103, the planarization layer 103 is disposed on the color-resist layer, the color-resist layer includes at least three color-resist blocks 204, and at least three of the color-resist blocks 204 include a red color-resist block, a green color-resist block, and a blue color-resist block.
the third display device layer 203 is disposed on the second display device layer 202, the third display device layer 203 includes a pixel electrode 104, a light-shielding control electrode 205, the light-shielding control electrode 205 is connected to the common line, and the pixel electrode 104 is connected to the drain electrode.
The light shielding control electrode 205 is configured to receive a predetermined voltage (a predetermined current) from the common line, so as to form a liquid crystal light shielding block in the liquid crystal layer together with the common electrode in the alignment panel, where the liquid crystal light shielding block is a portion of the liquid crystal layer between the light shielding control electrode 205 and the common electrode, and the liquid crystal light shielding block is configured to shield light emitted from one of two adjacent pixel units of the liquid crystal display panel to the other. Namely, the liquid crystal light shielding block is used for preventing the liquid crystal display panel from light leakage.
In addition, the liquid crystal light shielding block is further used for avoiding the phenomenon of poor display in the liquid crystal display panel caused by the deviation of a black matrix layer (BM) in the alignment panel due to the bending of the display device panel and the alignment panel under the condition that the liquid crystal display panel is a curved panel.
in the liquid crystal display panel of the present invention, the third display device layer 203 further includes a light shielding member 105, the light shielding member 105 covers the light shielding control electrode 205, and the light shielding member 105 and the liquid crystal light shielding block together shield light emitted from one of the two adjacent pixel units to the other. That is, the light shielding member 105 is used to assist the liquid crystal molecule light shielding block to shield light emitted from one of two adjacent pixel units to the other. That is, the light shielding member 105 is used to assist the liquid crystal molecule light shielding block in preventing the liquid crystal display panel from leaking light.
In the liquid crystal display panel of the present invention, the light shielding control electrode 205 is also used to shield the pixel electrode 104 from the interference of the electric field formed by the charges in the signal line. Specifically, the light shielding control electrode 205 is used to shield an electric field between the data line 102 and the pixel electrode 104, thereby preventing the data line 102 from interfering with the pixel electrode 105.
In the liquid crystal display panel of the present invention, a straight line corresponding to at least a part of the light-shielding control electrode 205 is parallel to the signal line, the light-shielding control electrode 205 is located above the signal line in a predetermined direction 208, the predetermined direction 208 is a direction perpendicular to the substrate and directed from the first display device layer 201 to the second display device layer 202, a width of a cross section of the light-shielding control electrode 205 is greater than a width of a cross section of the signal line, and the light-shielding control electrode 205 has a predetermined pitch with an adjacent pixel electrode 104. That is, the light shielding control electrode 205 shields the signal line in the predetermined direction 208.
Specifically, a portion of the light shielding control electrode 205 extending (flying) in a direction perpendicular to the predetermined direction 208 is used to shield the pixel electrode 104 from interference caused by an electric field formed by the charges in the signal line.
The light shielding control electrode 205 includes a first side and a second side, the signal line has a third side and a fourth side, a projection of the first side on the substrate and a projection of the third side on the substrate have a first distance 206, and a projection of the second side on the substrate and a projection of the fourth side on the substrate have a second distance 207. The first side and the second side are sides (edges) of a portion where the light shielding control electrode 205 extends (flies) in a direction perpendicular to the predetermined direction 208, respectively.
In the liquid crystal display panel of the present invention, the second display device layer 202 is configured to enable light passing through the display device panel to form a color corresponding to a color block in the color resistance layer, and to increase a distance between the pixel electrode 104 and the signal line in the predetermined direction 208, so as to reduce a parasitic capacitance formed by the pixel electrode 104 and the signal line.
In the liquid crystal display panel of the present invention, the liquid crystal display panel includes a display region and a peripheral region, the peripheral region is disposed at least one side of the display region, the first display device layer 201, the second display device layer 202, and the third display device layer 203 are all disposed in the display region, and the light-shielding control electrode 205 is connected to the common line at the peripheral region.
in the liquid crystal display panel of the present invention, the third display device layer 203 further includes a spacer disposed on the light-shielding control electrode 205, the spacer and the light-shielding member 105 are formed in the same photo-masking process, and a height of the spacer in the predetermined direction 208 is greater than a height of the light-shielding member 105 in the predetermined direction 208.
In the predetermined direction, the height of the light-shielding member 105 above the data line 102 is 1 micrometer, the height of the light-shielding member 105 above the scan line 101 is 2 micrometers, and the height of the spacer is 3 micrometers to 4 micrometers.
Through the technical scheme, the interference of the data line 102 to the pixel electrode 104 can be reduced on the premise of removing the shielding electrode. That is, the interference caused by the data line 102 to the pixel electrode 104 is reduced without using a shielding electrode to reduce the parasitic capacitance between the data line 102 and the pixel electrode 104. Therefore, the aperture ratio of the liquid crystal display panel of the invention is improved.
referring to fig. 4 and 5, fig. 4 is a flowchart of a method of manufacturing a liquid crystal display panel of the present invention, and fig. 5 is a flowchart of a step of manufacturing a display device panel in fig. 4.
The manufacturing method of the liquid crystal display panel comprises the following steps:
and A (step 401), manufacturing a display device panel.
and B (step 402), manufacturing an alignment panel.
and C (step 403), combining the display device panel and the alignment panel into a whole, and arranging a liquid crystal layer between the alignment panel and the display device panel, wherein the liquid crystal layer comprises liquid crystal molecules.
wherein the step A (step 401) comprises:
a1 (step 4011), disposing a first display device layer 201 on a substrate, wherein the first display device layer 201 includes a signal line, a common line, and a thin film transistor switch, the signal line includes a scan line 101 and a data line 102, the thin film transistor switch includes a gate electrode, a source electrode, and a drain electrode, the scan line 101 is connected to the gate electrode, and the data line 102 is connected to the source electrode.
a2 (step 4012), disposing a second display device layer 202 on the first display device layer 201, wherein the second display device layer 202 includes a color-resist layer and a planarization layer 103, the planarization layer 103 is disposed on the color-resist layer, the color-resist layer includes at least three color-resist blocks 204, and at least three color-resist blocks 204 include a red color-resist block, a green color-resist block, and a blue color-resist block.
a3 (step 4013), disposing a third display device layer 203 on the second display device layer 202, wherein the third display device layer 203 comprises a pixel electrode 104 and a light-shielding control electrode 205, the light-shielding control electrode 205 is connected to the common line, and the pixel electrode 104 is connected to the drain electrode.
The light shielding control electrode 205 is configured to receive a predetermined voltage (a predetermined current) from the common line, so as to form a liquid crystal light shielding block in the liquid crystal layer together with the common electrode in the alignment panel, where the liquid crystal light shielding block is a portion of the liquid crystal layer between the light shielding control electrode 205 and the common electrode, and the liquid crystal light shielding block is configured to shield light emitted from one of two adjacent pixel units of the liquid crystal display panel to the other. Namely, the liquid crystal light shielding block is used for preventing the liquid crystal display panel from light leakage.
in addition, the liquid crystal light shielding block is further used for avoiding the phenomenon of poor display in the liquid crystal display panel caused by the deviation of a black matrix layer (BM) in the alignment panel due to the bending of the display device panel and the alignment panel under the condition that the liquid crystal display panel is a curved panel.
In the method for manufacturing a liquid crystal display panel according to the present invention, the step a1 (the step 4011) includes:
The scan line 101 of the signal lines, the common line, and the gate electrode of the thin film transistor switch are disposed on the substrate.
And arranging an insulating layer on the substrate, the scanning line 101 and the grid electrode.
A semiconductor layer is disposed on the insulating layer.
A source and a drain of the thin film transistor switch are disposed on at least a portion of the semiconductor layer and the insulating layer.
and arranging a protective layer on the insulating layer, the semiconductor layer, the source electrode and the drain electrode.
The step a2 (the step 4012) includes:
and arranging the color resistance layer on the protective layer.
The planarization layer 103 is provided on the color resist layer.
As shown in fig. 6, the step a3 (the step 4013) includes:
a31 (step 40131), disposing the pixel electrode 104 and the light shielding control electrode 205 on the planarization layer 103.
a32 (step 40132), disposing a light shielding member 105 on the light shielding control electrode 205.
the light shielding member 105 covers the light shielding control electrode 205, and the light shielding member 105 and the liquid crystal light shielding block together shield light emitted from one of the two adjacent pixel units to the other. That is, the light shielding member 105 is used to assist the liquid crystal molecule light shielding block to shield light emitted from one of two adjacent pixel units to the other. That is, the light shielding member 105 is used to assist the liquid crystal molecule light shielding block in preventing the liquid crystal display panel from leaking light.
In the method for manufacturing a liquid crystal display panel of the present invention, the light shielding control electrode 205 is also used to shield the pixel electrode 104 from the interference of the electric field formed by the charges in the signal line. Specifically, the light shielding control electrode 205 is used to shield an electric field between the data line 102 and the pixel electrode 104, thereby preventing the data line 102 from interfering with the pixel electrode 105.
In the method for manufacturing a liquid crystal display panel of the present invention, a straight line corresponding to at least a part of the light-shielding control electrode 205 is parallel to the signal line, the light-shielding control electrode 205 is located above the signal line in a predetermined direction 208, the predetermined direction 208 is a direction perpendicular to the substrate and directed from the first display device layer 201 to the second display device layer 202, a width of a cross section of the light-shielding control electrode 205 is greater than a width of a cross section of the signal line, and the light-shielding control electrode 205 has a predetermined pitch from the adjacent pixel electrode 104. That is, the light shielding control electrode 205 shields the signal line in the predetermined direction 208.
Specifically, a portion of the light shielding control electrode 205 extending (flying) in a direction perpendicular to the predetermined direction 208 is used to shield the pixel electrode 104 from interference caused by an electric field formed by the charges in the signal line.
The light shielding control electrode 205 includes a first side and a second side, the signal line has a third side and a fourth side, a projection of the first side on the substrate and a projection of the third side on the substrate have a first distance 206, and a projection of the second side on the substrate and a projection of the fourth side on the substrate have a second distance 207. The first side and the second side are sides (edges) of a portion where the light shielding control electrode 205 extends (flies) in a direction perpendicular to the predetermined direction 208, respectively.
in the method for manufacturing a liquid crystal display panel of the present invention, the second display device layer 202 is used for forming the color of the light transmitted through the display device panel corresponding to the color block in the color resistance layer, and for increasing the distance between the pixel electrode 104 and the signal line in the predetermined direction 208, so as to reduce the parasitic capacitance formed by the pixel electrode 104 and the signal line.
in the method for manufacturing a liquid crystal display panel of the present invention, the third display device layer 203 further includes a spacer, and the step a32 (the step 40132) is:
a light-shielding member 105 and the spacer are provided on the light-shielding control electrode 205.
The spacers are disposed on the light-shielding control electrode 205, the spacers and the light-shielding member 105 are formed in the same photo-masking process, and the height of the spacers in the predetermined direction 208 is greater than the height of the light-shielding member 105 in the predetermined direction 208.
In the predetermined direction, the height of the light-shielding member 105 above the data line 102 is 1 micrometer, the height of the light-shielding member 105 above the scan line 101 is 2 micrometers, and the height of the spacer is 3 micrometers to 4 micrometers.
In the liquid crystal display panel manufacturing method of the present invention, the liquid crystal display panel includes a display region and a peripheral region, the peripheral region is provided on at least one side of the display region, the first display device layer 201, the second display device layer 202, and the third display device layer 203 are all provided in the display region, and the light-shielding control electrode 205 is connected to the common line at the peripheral region.
Through the technical scheme, the interference of the data line 102 to the pixel electrode 104 can be reduced on the premise of removing the shielding electrode. That is, the interference caused by the data line 102 to the pixel electrode 104 is reduced without using a shielding electrode to reduce the parasitic capacitance between the data line 102 and the pixel electrode 104. Therefore, the aperture ratio of the liquid crystal display panel of the invention is improved.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.
Claims (6)
1. a liquid crystal display panel, comprising:
a display device panel, the display device panel comprising:
A substrate;
a first display device layer disposed on the substrate, the first display device layer including a signal line, a common line, and a thin film transistor switch;
A second display device layer disposed on the first display device layer, the second display device layer including a color-resist layer and a planarization layer disposed on the color-resist layer;
A third display device layer disposed on the second display device layer, the third display device layer including a pixel electrode, a light-shielding control electrode, the light-shielding control electrode being connected to the common line;
A liquid crystal layer;
The alignment panel and the display device panel are combined into a whole, and the liquid crystal layer is arranged between the alignment panel and the display device panel;
The light shielding control electrode is used for receiving a preset voltage from the common line so as to form a liquid crystal light shielding block in the liquid crystal layer together with the common electrode in the alignment panel, the liquid crystal light shielding block is a part of the liquid crystal layer between the light shielding control electrode and the common electrode, and the liquid crystal light shielding block is used for shielding light emitted to the other one of two adjacent pixel units of the liquid crystal display panel;
The liquid crystal display panel is a curved panel, and the liquid crystal shading block is also used for avoiding the phenomenon of poor display in the liquid crystal display panel caused by the offset of a black matrix layer in the alignment panel when the display device panel and the alignment panel are bent;
the third display device layer further comprises a light shielding member and a spacer, the light shielding member covers the light shielding control electrode, and the light shielding member and the liquid crystal light shielding block together shield light rays emitted from one of the two adjacent pixel units to the other;
The shading control electrode is also used for shielding the interference of an electric field formed by the charges in the signal line on the pixel electrode;
The spacer is disposed on the light shielding control electrode, the spacer and the light shielding member are formed in the same photo-masking process, and the height of the spacer in a predetermined direction is greater than the height of the light shielding member in the predetermined direction, wherein the predetermined direction is a direction perpendicular to the substrate and directed from the first display device layer to the second display device layer.
2. The liquid crystal display panel according to claim 1, wherein a straight line corresponding to at least a part of the light-shielding control electrode is parallel to the signal line, the light-shielding control electrode is located above the signal line in a predetermined direction, a width of a cross section of the light-shielding control electrode is larger than a width of a cross section of the signal line, and the light-shielding control electrode has a predetermined pitch from an adjacent pixel electrode;
the shading control electrode comprises a first side edge and a second side edge, the signal line is provided with a third side edge and a fourth side edge, the projection of the first side edge on the substrate and the projection of the third side edge on the substrate have a first distance, and the projection of the second side edge on the substrate and the projection of the fourth side edge on the substrate have a second distance.
3. the liquid crystal display panel according to claim 1, wherein the second display device layer is configured to make light passing through the display device panel form a color corresponding to a color block in the color resistance layer, and to increase a distance between the pixel electrode and the signal line in the predetermined direction so as to reduce a parasitic capacitance formed by the pixel electrode and the signal line.
4. A method for manufacturing a liquid crystal display panel, the method comprising the steps of:
A. manufacturing a display device panel;
B. Manufacturing an alignment panel;
C. Combining the display device panel and the alignment panel into a whole, and arranging a liquid crystal layer between the alignment panel and the display device panel;
Wherein the step A comprises the following steps:
a1, disposing a first display device layer on a substrate, wherein the first display device layer includes a signal line, a common line, and a thin film transistor switch;
a2, arranging a second display device layer on the first display device layer, wherein the second display device layer comprises a color resistance layer and a planarization layer, and the planarization layer is arranged on the color resistance layer;
a3, arranging a third display device layer on the second display device layer, wherein the third display device layer comprises a pixel electrode and a light-shielding control electrode, and the light-shielding control electrode is connected with the common line;
The light shielding control electrode is used for receiving a preset voltage from the common line so as to form a liquid crystal light shielding block in the liquid crystal layer together with the common electrode in the alignment panel, the liquid crystal light shielding block is a part of the liquid crystal layer between the light shielding control electrode and the common electrode, and the liquid crystal light shielding block is used for shielding light emitted to the other one of two adjacent pixel units of the liquid crystal display panel;
The liquid crystal display panel is a curved panel, and the liquid crystal shading block is also used for avoiding the phenomenon of poor display in the liquid crystal display panel caused by the offset of a black matrix layer in the alignment panel when the display device panel and the alignment panel are bent;
The step a3 includes:
a31, arranging the pixel electrode and the shading control electrode on the planarization layer;
a32, arranging a light shielding member and a spacer on the light shielding control electrode;
the light shielding member covers the light shielding control electrode, the light shielding member and the liquid crystal light shielding block are used for shielding light rays emitted from one of two adjacent pixel units to the other, the light shielding control electrode is also used for shielding interference of an electric field formed by charges in the signal line to the pixel electrode, the spacer and the light shielding member are formed in the same photomask process, and the height of the spacer in a preset direction is larger than that of the light shielding member in the preset direction, wherein the preset direction is a direction which is perpendicular to the substrate and points to the second display device layer from the first display device layer.
5. The method for manufacturing a liquid crystal display panel according to claim 4, wherein a straight line corresponding to at least a part of the light-shielding control electrode is parallel to the signal line, the light-shielding control electrode is located above the signal line in a predetermined direction, a width of a cross section of the light-shielding control electrode is larger than a width of a cross section of the signal line, and the light-shielding control electrode has a predetermined pitch from an adjacent pixel electrode;
the shading control electrode comprises a first side edge and a second side edge, the signal line is provided with a third side edge and a fourth side edge, the projection of the first side edge on the substrate and the projection of the third side edge on the substrate have a first distance, and the projection of the second side edge on the substrate and the projection of the fourth side edge on the substrate have a second distance.
6. The method of claim 4, wherein the second display device layer is configured to enable light passing through the display device panel to form a color corresponding to a color block in the color resist layer, and to increase a distance between the pixel electrode and the signal line in the predetermined direction so as to reduce a parasitic capacitance formed by the pixel electrode and the signal line.
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| CN201610538291.9A CN106200169B (en) | 2016-07-08 | 2016-07-08 | liquid crystal display panel and method for manufacturing the same |
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| CN107797352B (en) * | 2017-11-17 | 2020-06-05 | 深圳市华星光电半导体显示技术有限公司 | Array substrate, display panel, display device and manufacturing method of array substrate |
| CN109407388A (en) * | 2018-11-14 | 2019-03-01 | 惠科股份有限公司 | Display panel manufacturing method, display panel and display device |
| CN116648659B (en) * | 2021-12-24 | 2025-09-26 | 京东方科技集团股份有限公司 | Display substrate and manufacturing method thereof, display panel, and display device |
| US12510791B2 (en) | 2022-01-26 | 2025-12-30 | HKC Corporation Limited | Array substrate and liquid crystal display panel |
| CN114299894B (en) * | 2022-01-26 | 2022-10-11 | 惠科股份有限公司 | Array substrate and liquid crystal display panel |
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| JP3125872B2 (en) * | 1998-09-14 | 2001-01-22 | 日本電気株式会社 | Active matrix type liquid crystal display |
| JP2001051288A (en) * | 1999-08-13 | 2001-02-23 | Fuji Xerox Co Ltd | Liquid crystal display device and production thereof |
| CN102854674A (en) * | 2012-09-04 | 2013-01-02 | 深圳市华星光电技术有限公司 | Display panel and liquid crystal display |
| CN104656325B (en) * | 2015-03-18 | 2017-06-27 | 深圳市华星光电技术有限公司 | The preparation method and COA type liquid crystal panels of COA type liquid crystal panels |
| CN105511189B (en) * | 2016-02-16 | 2018-10-26 | 深圳市华星光电技术有限公司 | VA type COA liquid crystal display panels |
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