WO2014190648A1 - 显示基板及其制造方法和液晶显示面板 - Google Patents
显示基板及其制造方法和液晶显示面板 Download PDFInfo
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- WO2014190648A1 WO2014190648A1 PCT/CN2013/084458 CN2013084458W WO2014190648A1 WO 2014190648 A1 WO2014190648 A1 WO 2014190648A1 CN 2013084458 W CN2013084458 W CN 2013084458W WO 2014190648 A1 WO2014190648 A1 WO 2014190648A1
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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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
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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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133553—Reflecting elements
- G02F1/133555—Transflectors
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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
- G02F1/1333—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
- G02F1/133514—Colour filters
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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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
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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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133784—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by rubbing
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- G—PHYSICS
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- 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
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/13378—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
- G02F1/133788—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
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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
- G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
- G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
- G02F1/1393—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the birefringence of the liquid crystal being electrically controlled, e.g. ECB-, DAP-, HAN-, PI-LC cells
- G02F1/1395—Optically compensated birefringence [OCB]- cells or PI- cells
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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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
- G02F1/133757—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle with different alignment orientations
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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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133753—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle
- G02F1/133761—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers with different alignment orientations or pretilt angles on a same surface, e.g. for grey scale or improved viewing angle with different pretilt angles
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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
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133773—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers the alignment material or treatment being different for the two opposite substrates
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0439—Pixel structures
- G09G2300/0456—Pixel structures with a reflective area and a transmissive area combined in one pixel, such as in transflectance pixels
Definitions
- Embodiments of the present invention relate to a display substrate, a method of fabricating the same, and a liquid crystal display panel. Background technique
- the liquid crystal display panel is generally formed by a color film substrate and an array substrate, and a liquid crystal layer is encapsulated in a space between the color filter substrate and the array substrate; since the liquid crystal molecules do not emit light themselves, the display panel requires a light source to display an image, according to the light source.
- the liquid crystal display panel can be divided into a transmissive liquid crystal display panel, a reflective liquid crystal display panel, and a transflective liquid crystal display panel. Among them, the transflective liquid crystal display panel is also called a transflective liquid crystal display panel.
- the transflective liquid crystal display panel is mainly formed by a color film substrate and an array substrate, and a liquid crystal cell is formed by filling a liquid crystal between the color filter substrate and the array substrate.
- the transflective liquid crystal display panel has a plurality of pixel regions, each of the pixel regions including a plurality of sub-pixel regions, each of the sub-pixel regions including a transmissive region and a reflective region.
- the transflective liquid crystal display panel When the transflective liquid crystal display panel is in the reflective working mode, the light entering the reflective area passes through the reflective area twice, and when the transflective liquid crystal display is in the transmissive working mode, the light entering the transmissive area passes through the transmissive area only once, thus,
- the light path emitted by the different light sources in the transflective liquid crystal display panel in different working modes is different in the optical path of the reflective region and the transmissive region, so that the color difference between the transmissive region and the reflective region is larger in different working modes, resulting in transflect The images displayed on the LCD display are inconsistent in color.
- the transflective liquid crystal display panel usually adopts a double-box thick pitch design, that is, the cell thickness of the liquid crystal cell in the reflective area is half of the cell thickness of the liquid crystal cell corresponding to the transmissive area, so as to ensure the passage.
- the amount of phase retardation of the light of the transmissive region and the reflective region can be matched to ensure a small chromatic aberration and color coordination of the transmissive region and the reflective region.
- the liquid crystal display panel of such a structure has a difference in the thickness of the liquid crystal cell, which results in a complicated manufacturing process of the liquid crystal display panel, and the uniformity of the cell thickness is difficult to control, and the junction of the reflective region and the transmissive region may be different due to the thickness of the liquid crystal cell.
- the liquid crystal molecules are deformed, resulting in a low contrast at the junction and poor color saturation.
- an embodiment of the present invention provides a display substrate for forming a transflective liquid crystal display panel including a transmissive region and a reflective region, the display substrate comprising: an alignment layer, the alignment layer comprising: An orientation structure and a second orientation structure, the first orientation structure is located in the transmission region, the second orientation structure is located in the reflection region, the first orientation structure is an oblique orientation structure, and the second orientation structure is a vertical orientation structure.
- the display substrate is an array substrate
- the array substrate includes: a first substrate substrate, an array substrate structure, and the alignment layer, wherein the array substrate structure is formed on the first substrate substrate, The alignment layer is formed over the array substrate structure.
- the display substrate is a color film substrate
- the color film substrate comprises: a second substrate substrate, a color film substrate structure and the alignment layer, wherein the color film substrate structure is formed on the first substrate On the substrate, the alignment layer is formed on the color filter substrate structure.
- Another embodiment of the present invention provides a method of manufacturing a display substrate for forming a transflective liquid crystal display panel including a transmissive region and a reflective region, the method comprising: forming a display substrate structure on a substrate substrate; Forming an alignment layer base layer on the display substrate structure; orienting the alignment layer base layer, forming a first alignment structure in the transmission region and forming a second alignment structure in the reflection region, the first The orientation structure is an oblique orientation structure, and the second orientation structure is a vertical orientation structure.
- the step of orienting the alignment layer base layer, forming the first orientation structure in the transmission region and forming the second alignment structure in the reflection region comprises: The alignment layer base layer is subjected to a rubbing alignment treatment such that the first alignment structure and the second alignment structure form an oblique alignment structure; and the second alignment structure is subjected to photo-alignment treatment such that the second alignment structure forms a vertical orientation structure.
- the step of orienting the alignment layer base layer, forming the first orientation structure in the transmission region and forming the second alignment structure in the reflection region comprises: The alignment layer base layer is subjected to photo-alignment treatment such that the first alignment structure and the second alignment structure form an oblique alignment structure; and the second alignment structure is subjected to photo-alignment treatment such that the second alignment structure forms a vertical orientation structure.
- the forming the display substrate structure on the substrate of the substrate comprises: forming an array substrate structure on the substrate substrate, or forming a color film substrate structure on the village substrate.
- a further embodiment of the present invention provides a transflective liquid crystal display panel including a transmissive region and a reflective region, the liquid crystal display panel comprising: an array substrate and a color filter substrate, wherein the array substrate and the color filter substrate are oppositely disposed, A liquid crystal layer is filled between the array substrate and the color filter substrate, a first alignment film is formed on the array substrate, and a second alignment film is formed on the color filter substrate, the first alignment film and the The orientation structure of the second alignment film is set such that the amount of phase retardation of the light passing through the transmission region and the reflection region is substantially equal in a state where the display panel is not pressed.
- an orientation structure of the first alignment film and the second alignment film is set such that an effective refractive index of light rays passing through a liquid crystal layer in the transmission region under a condition that the display panel is not pressed It is substantially equal to twice the effective refractive index of the liquid crystal layer in the reflective region to light.
- the thickness of the liquid crystal layer of the transmissive region is substantially equal to the thickness of the liquid crystal layer of the reflective region.
- the first alignment film has an oblique alignment structure in the transmissive region and a vertical alignment structure in the reflective region
- the second alignment film has a tilt in both the transmissive region and the reflective region Orientation structure.
- the second alignment film has an oblique alignment structure in the transmissive region and a vertical alignment structure in the reflective region, and the first alignment film has a tilt in both the transmissive region and the reflective region Orientation structure.
- the liquid crystal layer is a positive liquid crystal layer.
- FIG. 1 is a partial cross-sectional view showing an example of a structure of a display substrate according to a first embodiment of the present invention
- FIG. 2 is a partial cross-sectional view showing another example of the structure of a display substrate according to the first embodiment of the present invention
- FIG. 3 is a schematic view showing a partial cross-sectional structure of a liquid crystal display panel according to a third embodiment of the present invention.
- Fig. 4 is a view showing the arrangement of liquid crystal molecules in the case where a voltage is applied to the liquid crystal display panel of Fig. 3. detailed description
- the display substrate and the manufacturing method thereof and the liquid crystal display panel provided by the embodiments of the present invention can achieve the matching of the phase delay amount of the light passing through the transmissive area and the reflective area by designing the orientation structure of the alignment layer of the display substrate, so that it is not necessary Changing the thickness of the liquid crystal display panel, thereby improving the contrast and color saturation at the junction of the reflective area and the transmissive area, thereby improving the display quality of the liquid crystal display panel, and at the same time, the single-thickness structure design can be used for the liquid crystal display.
- the manufacturing process of the panel First embodiment
- a first embodiment of the present invention provides a display substrate for forming a transflective liquid crystal display panel, the liquid crystal display panel having a transmissive area and a reflective area, the display substrate comprising: an alignment layer, the orientation layer comprising: a first alignment structure And a second orientation structure, the first orientation structure is located in the transmission region, the second orientation structure is located in the reflection region, the first orientation structure is an oblique orientation structure, and the second orientation structure is a vertical orientation structure.
- the term “inclined orientation structure” means that liquid crystal molecules adjacent thereto can be formed to be greater than 0 degrees between the plane of the alignment film and no other external force.
- An orientation structure of less than 90 degrees of pretilt angle (preferably forming a pretilt angle greater than 0 degrees and less than 60 degrees).
- the term “vertical alignment structure” means an alignment structure capable of forming a pretilt angle of about 90 degrees between a liquid crystal molecule adjacent thereto and a plane of the alignment film without any external force.
- the term “display substrate” may refer to a substrate for constituting a liquid crystal display panel, such as an array substrate or a color filter substrate. In a liquid crystal display panel using COA (Color Filter on Array) technology, a “display substrate” can also be used to indicate a counter substrate which is opposed to the array color filter substrate to form a liquid crystal cell.
- the array substrate 10 includes: a first substrate substrate 1.
- the array substrate structure 2 and the alignment layer 3, the array substrate structure 2 is formed on the first substrate substrate On the board 1, the alignment layer 3 is formed on the array substrate structure 2.
- the alignment layer 3 includes: a first orientation structure and a second orientation structure, the first orientation structure is located in the transmission area, and the second orientation structure is located in the reflection area, the first orientation The structure is an oblique orientation structure, and the second orientation structure is a vertical orientation structure.
- the reflective substrate 201 is formed in the array substrate structure 2, and the reflective layer 201 is located in the reflective region.
- the array substrate structure 2 may further include: a gate line and a data line, the gate line and the data line defining a pixel unit, a thin film transistor (TFT) formed in the pixel unit, and a pixel electrode electrically connected to the thin film transistor, formed in the pixel A passivation layer between the electrode and the thin film transistor.
- TFT thin film transistor
- the specific structure of the array substrate structure 2 described in this embodiment is only an example, and other specific structures may be employed in other examples.
- the gate lines, data lines, pixel units, thin film transistors, pixel electrodes, and passivation layers included in the array substrate described in the present embodiment are not shown in the drawings.
- the reflective layer 201 may be formed in the reflective region and between the passivation layer and the first substrate substrate 1.
- an array polarizing layer 4 is further formed on the back surface of the first substrate substrate 1.
- the phase retardation amount of the light passing through the transmission region and the reflection region can be matched without changing the cell thickness of the liquid crystal display panel, thereby The contrast and color saturation at the junction of the reflective area and the transmissive area are improved, thereby improving the display quality of the liquid crystal display panel.
- the color filter substrate 20 includes: a second substrate substrate 5, a color filter substrate structure 6 and an alignment layer 3.
- the color filter substrate structure 6 is formed on the second substrate substrate 5, and the alignment layer 3 is formed on Above the color film substrate structure 6, the alignment layer 3 comprises: a first orientation structure and a second orientation structure, the first orientation structure is located in the transmission region, the second orientation structure is located in the reflection region, and the first orientation structure is an oblique orientation structure, the second The orientation structure is a vertical orientation structure.
- the color film substrate structure 6 may include: a color matrix pattern, a black matrix pattern, and a common electrode layer, and the common electrode layer is formed above the color matrix pattern and the black matrix pattern.
- the specific structure of the color filter substrate structure 6 described in this embodiment is only an example, and other specific structures may be employed in other examples. Further, the color matrix pattern, the black matrix pattern, and the common electrode layer included in the color filter substrate described in the embodiment are not shown in the drawings.
- a color film polarizing layer 8 is formed on the back surface of the second substrate substrate 5.
- the matching of the phase retardation amount of the light passing through the transmission region and the reflection region can be realized without changing the cell thickness of the liquid crystal display panel, Thereby increasing the contrast and color saturation at the junction of the reflective and transmissive areas And the degree, which further improves the display quality of the liquid crystal display panel.
- the alignment structure of the alignment layer of the display substrate by designing the alignment structure of the alignment layer of the display substrate, the matching of the phase retardation amount of the light passing through the transmission region and the reflection region is achieved, so that it is not necessary to change the cell thickness of the liquid crystal display panel, thereby The contrast and color saturation at the junction of the reflective area and the transmissive area are improved, thereby improving the display quality of the liquid crystal display panel.
- a single box-thick structural design can enclose the manufacturing process of the liquid crystal display panel.
- a second embodiment of the present invention provides a method for manufacturing a display substrate for a transflective liquid crystal display panel, the method comprising:
- Step 1001 Form a display substrate structure on the substrate of the village.
- Step 1002 forming an alignment layer base layer on the display substrate structure.
- Step 1003 performing an alignment treatment on the alignment layer base layer such that a first alignment structure is formed in the first region and a second alignment structure is formed in the second region, the first alignment structure being an oblique alignment structure, and the second orientation
- the structure is a vertically oriented structure.
- step 1003 includes:
- Step 1013 Performing a rubbing orientation treatment on the alignment layer base layer such that the first alignment structure and the second alignment structure form an oblique alignment structure.
- Step 1023 The second alignment structure is photo-aligned such that the second alignment structure forms a vertical alignment structure.
- step 1003 includes:
- Step 1033 The alignment layer base layer is subjected to photo-alignment treatment such that the first alignment structure and the second alignment structure form an oblique alignment structure.
- Step 1043 An additional photo-alignment treatment is performed on the second alignment structure such that the second alignment structure forms a vertical alignment structure.
- step 1001 includes:
- Step 1011 Form an array substrate structure on the substrate of the village.
- step 1021 forming a color filter substrate structure on the substrate of the village.
- the manufacturing method provided by the second embodiment of the present invention by designing the manufacturing method of the alignment layer of the display substrate, the matching of the phase retardation amount of the light passing through the transmissive region and the reflective region can be realized, so that the cartridge of the liquid crystal display panel does not need to be changed. Thick, thereby increasing the contrast at the junction of the reflective and transmissive areas And color saturation, thereby improving the display quality of the liquid crystal display panel, and at the same time, the single-cassette structure design can cylindricalize the manufacturing process of the liquid crystal display panel.
- FIG. 3 is a partial cross-sectional structural diagram of a liquid crystal display panel according to a third embodiment of the present invention.
- the liquid crystal display panel comprises: an array substrate and a color filter substrate.
- the array substrate and the color filter substrate are oppositely disposed, and the liquid crystal layer 9 is filled between the array substrate and the color filter substrate.
- Fig. 3 is the arrangement of liquid crystal molecules in the liquid crystal layer when the liquid crystal display panel is in an unpressurized state.
- Fig. 4 is a view showing the arrangement of liquid crystal molecules in the liquid crystal layer when a voltage is applied to the liquid crystal display panel of Fig. 3.
- the array substrate may be the array substrate 10 provided in the first embodiment, and the color filter substrate may be a color film substrate in which the alignment layer is entirely in an oblique alignment structure;
- the color filter substrate may be the display substrate 20 provided in the first embodiment described above, and the array substrate may be an array substrate in which the alignment layers are entirely in an oblique alignment structure.
- the color film substrate is the color film substrate according to the first embodiment, and the array substrate is an array substrate in which the alignment layer as a whole has an oblique alignment structure.
- the color filter substrate comprises: a second substrate substrate 5, a color filter substrate structure 6 and an alignment layer 3, wherein the alignment layer 3 of the color filter substrate comprises: a first orientation structure and a second orientation structure, the first orientation structure is located in transmission a second alignment structure is located in the reflective region, the first alignment structure is an oblique alignment structure, and the second orientation structure is a vertical alignment structure.
- the color film substrate structure 6 may include: a color matrix pattern, a black matrix pattern, and a common electrode layer, the common electrode layer being formed over the color matrix pattern and the black matrix pattern.
- the array substrate includes: a first substrate substrate 1, an array substrate structure 2, and an alignment layer 7.
- the array substrate structure 2 may include: a gate line and a data line, the gate line and the data line defining a pixel unit formed in the pixel unit a thin film transistor (TFT) and a pixel electrode electrically connected to the thin film transistor, a passivation layer formed between the pixel electrode and the thin film transistor, and an internal reflection layer formed between the passivation layer and the first substrate 201.
- TFT thin film transistor
- the alignment layer 7 of the array substrate is entirely of an oblique alignment structure.
- the specific structure of the array substrate structure 2 and the color filter substrate structure 6 described in this embodiment is only an example, and other specific structures may be employed in other examples.
- the array substrate the array provided by the above-mentioned first embodiment is used, and the orientation layer of the color filter substrate is a tilt-oriented structure as a whole.
- the specific description of the array substrate can be referred to the first embodiment, and the color film is not described herein again.
- the substrate comprises: a second substrate substrate, a color film substrate structure and an orientation layer,
- the alignment layer of the film substrate is an overall oblique alignment structure. The corresponding drawings are not given in this case.
- the liquid crystal layer 9 is a positive liquid crystal layer.
- an array polarizing layer 4 may be formed on the back surface of the first substrate substrate 1, and a color film polarizing layer 8 may be formed on the back surface of the second substrate substrate 5.
- the principle of the embodiment of the present invention will be described in detail with reference to FIGS. 3 and 4.
- the portion of the alignment layer 7 on the array substrate located in the transmissive region is provided with a certain inclination angle, and the alignment layer 3 on the color filter substrate is located.
- the portion of the transmissive region is provided with a certain inclination angle, so that the liquid crystal adjacent to the alignment layer 7 on the array substrate and the alignment layer 3 on the color filter substrate in the transmissive region will have a certain deflection, and will drive adjacent liquid crystal generation.
- the deflection for example, the transmission zone is an optically compensated bending ⁇ 'J (Optically Compensated Birefringence, OCB) mode.
- the alignment layer 7 on the array substrate is located at a portion of the reflective region with a certain inclination angle, and the portion of the alignment layer 3 on the color filter substrate located at the reflective region is provided with a vertical alignment structure, so The liquid crystal molecules of the direct orientation have substantially no deflection, so that the liquid crystal of the alignment layer 3 on the color film substrate in the reflection region is not deflected, and the liquid crystal of the alignment layer 7 on the array substrate is deflected.
- the light of the liquid crystal layer per unit thickness passing through the transmissive region When light passes through the transmissive region and the reflective region, the light of the liquid crystal layer per unit thickness passing through the transmissive region generates a large amount of phase retardation with respect to the light of the liquid crystal layer per unit thickness passing through the reflective region. Moreover, by setting different tilt angles of the alignment layers on the color filter substrate of the transmissive region and the reflective region as described above, the effective refractive index of the light passing through the liquid crystal layer pair in the transmissive region is larger than that in the reflective region. The effective refractive index of the light through which the molecules pass through the layer.
- phase retardation amount the effective refractive index X actual distance
- ⁇ 3 ⁇ 4 ⁇ ⁇ 3 ⁇ 4 ⁇
- the liquid crystal layer 9 located in the transmissive region and the reflective region is vertically aligned by the vertical electric field, and the transmissive region and the reflective region are vertically arranged.
- the vertically aligned liquid crystal layer 9 does not generate a phase retardation amount. Since the polarization direction of the emitted light does not change, the emitted light is completely blocked by the color film polarizing layer 8. The display of the dark state.
- the phase delay amount of the light passing through the transmission region and the reflection region is matched, thereby There is no need to change the thickness of the liquid crystal display panel, thereby improving the contrast and color saturation of the boundary between the reflective area and the transmissive area, thereby improving the display quality of the liquid crystal display panel.
- the single-thickness structure design can be used to liquidize the liquid crystal. The manufacturing process of the display panel.
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
Description
Claims
Priority Applications (2)
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US14/235,947 US9354471B2 (en) | 2013-05-31 | 2013-09-27 | Display substrate, method for fabricating the same and liquid crystal display panel |
US15/138,556 US10168576B2 (en) | 2013-05-31 | 2016-04-26 | Display substrate, method for fabricating the same and liquid crystal display panel |
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CN201310211853.5 | 2013-05-31 | ||
CN201310211853.5A CN103293770B (zh) | 2013-05-31 | 2013-05-31 | 显示基板及制造方法和液晶显示面板 |
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US14/235,947 A-371-Of-International US9354471B2 (en) | 2013-05-31 | 2013-09-27 | Display substrate, method for fabricating the same and liquid crystal display panel |
US15/138,556 Division US10168576B2 (en) | 2013-05-31 | 2016-04-26 | Display substrate, method for fabricating the same and liquid crystal display panel |
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CN107505775A (zh) * | 2017-09-07 | 2017-12-22 | 昆山龙腾光电有限公司 | 半透半反液晶显示面板、显示面板的制作方法及显示装置 |
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CN103792721B (zh) | 2014-01-22 | 2016-06-29 | 京东方科技集团股份有限公司 | 一种半透半反液晶显示面板及其制作方法、显示装置 |
KR102131117B1 (ko) * | 2014-02-07 | 2020-07-08 | 삼성디스플레이 주식회사 | 편광자, 편광자를 갖는 표시 장치, 및 편광자 제조 방법 |
DE112016003418B4 (de) * | 2015-07-28 | 2023-01-19 | Alps Alpine Co., Ltd. | Mehrlagenstruktur und Verfahren zum Herstellen einer Mehrlagenstruktur |
CN106444134B (zh) * | 2016-09-26 | 2019-08-30 | 京东方科技集团股份有限公司 | 显示面板和显示装置 |
CN106814497B (zh) * | 2017-01-19 | 2020-02-28 | 京东方科技集团股份有限公司 | 一种半透半反显示面板及其制作方法、显示装置 |
GB201803948D0 (en) * | 2018-03-12 | 2018-04-25 | Mbda Uk Ltd | An imaging device |
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US10168576B2 (en) | 2019-01-01 |
US20150029454A1 (en) | 2015-01-29 |
US20160238864A1 (en) | 2016-08-18 |
US9354471B2 (en) | 2016-05-31 |
CN103293770B (zh) | 2015-12-23 |
CN103293770A (zh) | 2013-09-11 |
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