WO2017020518A1 - 阵列基板、液晶显示面板及显示装置 - Google Patents
阵列基板、液晶显示面板及显示装置 Download PDFInfo
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- WO2017020518A1 WO2017020518A1 PCT/CN2015/099338 CN2015099338W WO2017020518A1 WO 2017020518 A1 WO2017020518 A1 WO 2017020518A1 CN 2015099338 W CN2015099338 W CN 2015099338W WO 2017020518 A1 WO2017020518 A1 WO 2017020518A1
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- array substrate
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- wire grid
- polarizing film
- disposed
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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
- G02F1/133528—Polarisers
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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
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- 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
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- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- G02F1/133536—Reflective polarizers
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- 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
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- 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
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- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- 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
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- 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
- G02F1/136286—Wiring, e.g. gate line, drain line
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- 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
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- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
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- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- 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
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- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
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- 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
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- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- 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
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- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
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- 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
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- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
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- G02F1/134363—Electrodes characterised by their geometrical arrangement for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]
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- 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
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- G02F2203/00—Function characteristic
- G02F2203/09—Function characteristic transflective
Definitions
- Embodiments of the present invention relate to an array substrate, a liquid crystal display panel, and a display device.
- transmissive liquid crystal displays emit light under direct sunlight. Therefore, people are constantly seeking ways to achieve better contrast between the display indoors and outdoors.
- Transflective technology has been included in a solution to the reduction of outdoor contrast.
- there are usually two main ways to achieve transflective One is to achieve a single-box thickness of the Electronically Controlled Birefringence (ECB) mode, however this mode usually requires an additional compensation film and the viewing angle is not good.
- EBC Electronically Controlled Birefringence
- the other is a double-box thick transflective mode.
- the process of this mode is complicated, the production cost is high, and the display characteristics are not very good.
- At least one embodiment of the present invention provides an array substrate, a liquid crystal display panel, and a display device, which can make the display panel and the display device including the array substrate provided by the embodiment of the present invention have more uniform brightness and good overall uniformity.
- At least one embodiment of the present invention provides an array substrate including a substrate substrate and a plurality of sub-pixels disposed on the substrate, each of the sub-pixels including a plurality of transmissive regions and a plurality of reflective regions.
- the transmissive area and the reflective area are alternately arranged in a first direction.
- the transmissive area and the reflective area are alternately arranged in a second direction, and the second direction is perpendicular to the first direction.
- the plurality of transmissive regions and/or the plurality of reflective regions in a region where each of the sub-pixels are located are evenly distributed in the sub-pixels.
- a wire is disposed in each of the sub-pixels.
- a gate polarizing film, each of the sub-pixels, the wire grid polarizing film includes a plurality of sets of a plurality of parallelly disposed metal lines disposed in the plurality of reflective regions, each of the reflective regions being provided with a set of the plurality of reflective regions a plurality of metal wires arranged in parallel, wherein a plurality of parallelly disposed metal wires in the wire grid polarizing film are disposed to transmit linearly polarized light having a polarization direction perpendicular to a direction in which the metal wires extend and a direction of reflection polarization parallel to the metal Linearly polarized light in the direction of line extension.
- the metal wire material comprises one or a combination of aluminum, chromium, copper, silver, nickel, iron, and cobalt.
- an array substrate provided by an embodiment of the present invention further includes a plurality of data lines, and the wire grid polarizing film is disposed in the same layer as the plurality of data lines and insulated from each other.
- an array substrate provided by an embodiment of the present invention further includes a plurality of gate lines, and the wire grid polarizing film is disposed in the same layer as the plurality of gate lines and insulated from each other.
- an array substrate further includes a common electrode line disposed in the same layer and extending in the same direction as the gate line, and the wire grid polarizing film and the common electrode line are electrically connected in each of the sub-pixels. Sexual connection.
- a wire grid polarizing film in each sub-pixel is electrically connected to a pixel electrode in the sub-pixel.
- an array substrate provided by an embodiment of the present invention further includes a thin film transistor, and the wire grid polarizing film is multiplexed as a pixel electrode in the sub-pixel, and the pixel electrode is electrically connected to a drain of the thin film transistor.
- the pixel electrode in the sub-pixel is a slit-shaped electrode.
- an array substrate provided by an embodiment of the present invention further includes a common electrode, and the common electrode is located between the pixel electrode and the substrate.
- the wire grid polarizing film is multiplexed as a common electrode in the sub-pixel.
- the common electrode in the sub-pixel is a slit electrode or a comb electrode.
- an array substrate further includes a pixel electrode and a thin film transistor, the pixel electrode is located between the common electrode and the substrate, and the pixel electrode and the drain of the thin film transistor are electrically Sexual connection.
- the wire grid polarizing film is multiplexed as a pixel electrode and a common electrode of a finger structure provided in the same layer.
- a transparent metal oxide conductive layer is disposed on the wire grid polarizing film in each of the sub-pixels.
- the transparent metal oxide conductive layer and the pattern of the wire grid polarizing film are identical.
- At least one embodiment of the present invention further provides a liquid crystal display panel comprising: an opposite opposing substrate and an array substrate, and a liquid crystal layer filled between the array substrate and the opposite substrate;
- the array substrate is the array substrate described in any of the embodiments of the present invention.
- a wire grid polarizing film is disposed in each of the sub-pixels, and each of the sub-pixels includes a plurality of the wire grid polarizing films.
- a plurality of sets of a plurality of parallelly disposed metal lines in the reflective area, each of the reflective areas is provided with a plurality of the plurality of parallelly disposed metal lines, and a plurality of parallelly arranged metal lines in the wire grid polarizing film are disposed
- the linearly polarized light having a polarization direction perpendicular to the extending direction of the metal line and the linearly polarized light having a direction of reflection polarization parallel to the extending direction of the metal line are disposed on a side of the array substrate away from the opposite substrate In the polarizing plate, a direction in which the plurality of parallelly disposed metal wires extend is parallel to a direction of a polarization axis of the lower polarizing plate.
- At least one embodiment of the present invention further provides a display device comprising the liquid crystal display panel according to any embodiment of the present invention.
- 1a is a top plan view of a region in which a sub-pixel in an array substrate includes a plurality of transmissive regions and a plurality of reflective regions according to an embodiment of the present invention
- 1b is a top plan view showing a region in which a sub-pixel in an array substrate includes a plurality of transmissive regions and a plurality of reflective regions according to another embodiment of the present invention
- FIG. 1c is a schematic top view of a region in which a sub-pixel in an array substrate includes a plurality of transmissive regions and a plurality of reflective regions according to another embodiment of the present invention (transmission region and reflective region are in the Alternately arranged in one direction and in the second direction);
- FIG. 1 is a top plan view of a wire grid polarizing film provided in an array substrate according to an embodiment of the invention
- 1e is a schematic top plan view of an array substrate having a wire grid polarizing film according to another embodiment of the present invention.
- FIG. 2a is a schematic perspective view of a plurality of parallelly disposed metal lines in a reflective region in an array substrate according to an embodiment of the present invention
- 2b is a schematic diagram of light transmission and reflection of a plurality of parallelly disposed metal lines in a reflective region in an array substrate according to an embodiment of the present invention
- 3a is a schematic diagram of an array substrate with a wire grid polarizing film according to an embodiment of the invention.
- 3b is a cross-sectional view showing a line-gate polarizing film and a gate line in the same layer in the array substrate according to an embodiment of the present invention (a cross-sectional view taken along line A-A' in FIG. 3a);
- FIG. 4a is a schematic diagram of multiplexing a wire grid polarizing film into a pixel electrode in an array substrate according to an embodiment of the invention
- FIG. 4B is a cross-sectional view of an array substrate of an ADS mode in which a wire grid polarizing film is multiplexed into a pixel electrode according to an embodiment of the present invention (a cross-sectional view taken along line A-A' in FIG. 4a);
- 4c is a cross-sectional view of an array substrate of an ADS mode in which a wire grid polarizing film is multiplexed into a common electrode according to an embodiment of the present invention
- 4D is a cross-sectional view of an array substrate of an ADS mode in which a wire grid polarizing film is multiplexed into a pixel electrode and a transparent metal oxide conductive layer is disposed thereon according to an embodiment of the present invention
- FIG. 5 is a cross-sectional view of an array substrate of an ADS mode in which a wire grid polarizing film and a gate line are disposed in the same layer according to an embodiment of the present invention
- 6a is a schematic diagram of an IPS mode array substrate in which a wire grid polarizing film is multiplexed into a pixel electrode and a common electrode according to an embodiment of the present invention
- 6b is another schematic diagram of an IPS mode array substrate in which a wire grid polarizing film is multiplexed into a pixel electrode and a common electrode according to an embodiment of the present invention
- 6c is a schematic diagram of a pixel electrode and a common electrode of the interposer structure disposed in the same layer;
- FIG. 7 is a schematic diagram of a display panel according to an embodiment of the invention.
- FIG. 8 is a schematic diagram of a method for implementing a dark state in a display panel or a display device in an ADS mode according to an embodiment of the present invention
- FIG. 9 is a schematic diagram of a method for implementing a bright state in a display panel or a display device in an ADS mode according to an embodiment of the present invention.
- LCDs liquid crystal displays
- the display area is divided into a reflective area and a transmissive area, wherein the transmissive area is displayed by means of backlight emission, and the reflective area is displayed by reflecting external ambient light. In this way, in an environment with strong outdoor light, the reflected light can be used to compensate the display effect.
- one sub-pixel contains only one reflective region and one transmissive region, and its display characteristics are not very good, such as uneven brightness.
- WGP wire grid polarizer
- An embodiment of the present invention provides an array substrate, as shown in FIG. 1a, including a substrate substrate 100 and a plurality of sub-pixels 103 on the substrate substrate 100.
- the substrate substrate 100 includes a plurality of data lines 101 and a plurality of gate lines 102 which are interdigitated and insulated from each other, on the substrate.
- a plurality of sub-pixels 103 arranged in an array may be defined on the substrate 100 by a plurality of data lines 101 and a plurality of gate lines 102. It should be noted that the sub-pixel 103 may be defined by a plurality of gate lines and a plurality of data lines, but is not limited thereto.
- One sub-pixel 103 includes, for example, a gate line, a data line, a pixel electrode, and a switching element.
- the sub-pixel 103 is the smallest unit in the array substrate for display.
- Each of the sub-pixels 103 includes a plurality of transmissive regions 105 and a plurality of reflective regions 104 (not limited to the specific number shown in the figures).
- the plurality of transmissive regions 105 are not mutually co-edges
- the plurality of reflective regions 104 are not mutually co-edges.
- Non-co-edges mean that the pattern formed by the transmissive area and the pattern formed by the reflective area have no common side.
- the area where each sub-pixel is located includes a plurality of transmissive areas and reflective areas, so that the embodiment of the present invention can be provided.
- the display panel and the display device of the array substrate have more uniform brightness and good overall uniformity. Moreover, good brightness uniformity can be obtained both indoors and outdoors.
- the transmissive area 105 and the reflective area 104 are alternately arranged in the first direction.
- the first direction is a horizontal direction parallel to the paper surface.
- a plurality of the embodiments described in the embodiments of the present invention are, for example, more than one.
- the transmissive area 105 and the reflective area 104 may all be strip-shaped, for example, rectangular areas, but are not limited thereto.
- the transmissive area 105 and the reflective area 104 may also be other shapes than the rectangular area.
- the shape of the reflective area 104 may include a shape of a line shape, a zigzag shape, a circle shape, or the like.
- the shape of the transmissive area 105 may include a shape of a line shape, a zigzag shape, a circle shape, or the like.
- Fig. 1b shows the case where the transmissive area 105 and the reflective area 104 are both line-shaped.
- the shape of the transmissive area 105 and the reflective area 104 is not specifically limited in the embodiment of the present invention.
- the transmissive area 105 and the reflective area 104 are alternately arranged in the first direction, and the transmissive area 105 and the reflective area 104 are alternately arranged in the second direction.
- the two directions are perpendicular to the first direction.
- the transmission region 105 and the reflective region 104 are alternately arranged in both the first direction and the second direction to make the distribution of the transmissive region 105 and the reflective region 104 more uniform. It is more advantageous to improve the uniformity of luminance distribution of the display panel of the array substrate including the type of the transmissive region and the reflective region.
- a wire grid polarizing film 106 is provided in each of the sub-pixels 103.
- the wire grid polarizing film 106 includes a plurality of sets of a plurality of parallelly disposed metal lines 116 disposed in the plurality of reflective regions 104, and each of the reflective regions 104 is provided with a plurality of sets of parallelly arranged metal lines and lines.
- a plurality of parallelly disposed metal lines 116 in each of the reflective regions 104 of the gate polarizing film 106 are configured to transmit linearly polarized light having a polarization direction perpendicular to a direction in which the metal lines extend and a linear polarization in which a direction of reflection polarization is parallel to a direction in which the metal lines extend.
- Light A plurality of metal wires arranged in parallel are wire grid polarizers.
- FIG. 1d is a schematic view showing a plurality of parallelly disposed metal lines in each of the reflective regions in a case where the transmissive region and the reflective region are both rectangular
- FIG. 1e is a case where each of the transmissive region and the reflective region are in a zigzag shape. Schematic diagram of a plurality of parallel arranged metal lines in the area.
- FIG. 1d and FIG. 1e illustrate a case where a plurality of parallelly disposed metal lines in each reflective region of the wire grid polarizing film are illustrated by alternately arranging the transmissive region and the reflective region in the first direction.
- the transmissive area and the reflective area are alternately arranged in the second direction can be referred to FIG. 1c and the case where the transmissive area and the reflective area are alternately arranged in the first direction.
- a plurality of transmissive regions and a plurality of reflective regions in a region where each sub-pixel is located are uniformly distributed in the sub-pixels, but are not limited thereto.
- the plurality of transmissive regions and/or the plurality of reflective regions may also be unevenly distributed in the sub-pixels.
- the array substrate provided by the embodiment of the present invention includes the sub-pixels including the plurality of transmissive regions and the plurality of reflective regions as described above.
- all of the sub-pixels of the array substrate include a plurality of transmissive regions and a plurality of reflective regions.
- a plurality of transmissive regions and a plurality of reflective regions are included in a portion of the sub-pixels of the array substrate.
- other types of sub-pixels may also be included in the array substrate provided by the embodiments of the present invention.
- a plurality of transmissive regions and a plurality of reflective regions as described above are not included in other types of sub-pixels.
- the sub-pixels including the plurality of transmissive regions and the plurality of reflective regions may be uniformly distributed on the base substrate, or may be unevenly distributed. In the case where the sub-pixels including the plurality of transmissive regions and the plurality of reflective regions are uniformly distributed on the base substrate, the brightness uniformity of the display panel including the array substrate is improved.
- a plurality of parallelly disposed metal lines 116 in the reflective region 104 can be as shown in FIG. 2a.
- Each of the reflective regions 104 includes a plurality of metal wires 116 disposed in parallel.
- the properties of the wire grid polarizing film are as follows: for natural light to be applied to the wire grid bias On the light film, linearly polarized light parallel to the direction of the metal line is almost completely reflected back, and linearly polarized light perpendicular to the direction of the metal line can be transmitted through.
- the width W of each metal wire may be 30 nm to 50 nm.
- the distance P between adjacent two metal wires may be 100-150 nm.
- the height H of each metal wire may be 100-300 nm.
- the plurality of parallelly disposed metal lines in the wire grid polarizing film 106 in the array substrate provided by the embodiment of the present invention can be obtained by depositing a metal film, coating a photoresist, exposing and developing a photoresist pattern, and using a photoresist pattern as a photoresist pattern.
- the mask is formed by etching or the like, and for example, exposure and development can be performed by an interference exposure method using a laser. That is, the laser light of a specific wavelength is used to illuminate the photoresist from two directions of the angle ⁇ to form an interference fringe for exposure, and by changing ⁇ , an uneven lattice structure having various pitches in the laser wavelength range used can be obtained.
- wire grid polarizing film a plurality of parallel-connected metal wires forming a wire grid polarizing film are formed.
- the wire grid polarizing film can also be formed by other methods such as nanoimprinting, and will not be described in detail herein, nor is it limited to form a wire grid polarizing film.
- the wire grid polarizing film is generally made of a metal material.
- the metal wire is a nano-scale metal wire.
- the metal wire material may include one or a combination of aluminum (Al), chromium (Cr), copper (Cu), silver (Ag), nickel (Ni), iron (Fe), or cobalt (Co).
- the wire grid polarizing film can be made of a single metal film. It may also be disposed in the same layer as a common metal line (for example, a gate line, a data line, etc.) in the array substrate.
- the wire grid polarizing film separately made of a metal film may be located above or below the pixel electrode, may or may not be electrically connected to the pixel electrode. Because the wire grid polarizing film and the data lines and the gate lines do not overlap. In different examples, the wire grid polarizing film may be disposed in the same layer as the data line or the gate line and insulated from each other, so that the wire pattern polarizing film can be realized without adding a new patterning process in the conventional array substrate fabrication process. Production can save the number of masks used and the manufacturing process, save production costs and improve production efficiency.
- the array substrate includes a base substrate 100 and a thin film transistor 108, a data line 101, a gate line 102, and sub-pixels 103 on the base substrate 100.
- the wire grid polarizing film in the sub-pixel 103 includes a plurality of sets of a plurality of metal wires 116 arranged in parallel.
- the figure shows five sets of multiple flats
- the metal wires 116 are arranged in rows, but the plurality of metal wires arranged in parallel are not limited to the five groups shown.
- Each of the plurality of parallelly disposed metal lines 116 constitutes a reflective area 104, and between the adjacent two reflective areas 104 is a transmissive area 105.
- a plurality of parallelly disposed metal lines 116 and data lines and gate lines do not coincide.
- FIG. 3b shows a schematic cross-sectional view of the wire grid polarizing film disposed in the same layer as the gate line.
- the gate line 102 is disposed in the same layer as the gate electrode 1084. It can be a cross-sectional view taken along line A-A' in Figure 3a.
- a gate electrode 1084 and a wire grid polarizing film 106 are provided on the base substrate 100.
- a gate insulating layer 1085 is disposed over the layer where the gate electrode 1084 and the wire grid polarizing film 106 are located, an active layer 1083 is disposed over the gate insulating layer 1085, and a source 1082 is disposed over the layer where the active layer 1083 is located.
- drain 1081, the drain 1081 and the source 1082 are spaced apart from each other and are connected to the active layer 1083.
- the drain 1081 and the source 1082 are respectively disposed on both sides of the active layer 1083 at the drain 1081 and the source.
- a first insulating layer 121 is disposed on the layer where the 1082 is located, and a pixel electrode 124 is disposed on the first insulating layer 121.
- the pixel electrode is electrically connected to the drain 1081 of the thin film transistor 108 through the via 125.
- the plurality of parallelly disposed metal lines in the wire grid polarizing film in the array substrate may be multiplexed as a pixel electrode, a common electrode or used for storage, in addition to being a reflective region. capacitance.
- a pixel electrode a common electrode or used for storage, in addition to being a reflective region.
- capacitance a capacitance.
- the pixel electrode and the wire grid polarizing film are multiplexed in the array substrate.
- the wire grid polarizing film 106 is multiplexed as a pixel electrode in each sub-pixel, which is electrically connected to the drain 1081 of the thin film transistor 108 disposed at the intersection of the data line 101 and the gate line 102, and the drain 1081 is generally connected to the data line. 101 same layer settings.
- an array substrate of an Advanced-Super Dimensional Switching (ADS) mode is provided.
- a gate electrode 1084 is disposed on the substrate substrate 100, and a gate insulation is disposed on the layer where the gate electrode 1084 is located.
- the layer 1085 is provided with an active layer 1083 over the gate insulating layer 1085, a source 1082 and a drain 1081 disposed above the layer where the active layer 1083 is located, and a gap between the drain 1081 and the source 1082.
- the drain 1081 and the source 1082 are disposed on both sides of the active layer 1083, and a first insulating layer 121 is disposed on the layer where the drain 1081 and the source 1082 are located, in the first insulating layer 121.
- a common electrode 123 is disposed thereon, a second insulating layer 122 is disposed on the layer where the common electrode 123 is located, and a pixel electrode 124 is disposed on the second insulating layer 122.
- the pixel electrode is electrically connected to the drain 1081 of the thin film transistor 108 through the via 125. Connected.
- each sub-pixel the wire grid polarizing film 106 is multiplexed as a pixel electrode, and each sub-pixel 103 includes a plurality of transmissive regions 105 and a plurality of anti-pixels
- the shot area 104, the transmissive area 105 and the reflective area 104 are alternately arranged (alternately arranged in the first direction). Between adjacent two reflective regions 104 is a transmissive region 105. Between adjacent two transmissive regions 105 is a reflective region 104.
- the pixel electrode 124 is a slit electrode, and includes a terminal electrode 1243 and a plurality of strip electrodes 1241 connected to the terminal electrode 1243.
- a slit 1242 is formed between two adjacent strip electrodes 1241. .
- the wire grid polarizing film is multiplexed into a slit-shaped pixel electrode in each sub-pixel.
- the wire grid polarizing film in each sub-pixel includes a plurality of sets of a plurality of metal wires 116 arranged in parallel, and four sets of a plurality of metal wires 116 arranged in parallel are illustrated in FIG. 4a, but the plurality of metal wires 116 arranged in parallel are not limited to those illustrated in the figure. The four groups described.
- Each of the plurality of parallelly disposed metal lines 116 is a reflective area 104.
- the region where the slit of the pixel electrode is located is the transmission region 105.
- a plurality of parallelly disposed metal lines 116 in the wire grid polarizing film 106 are disposed to transmit linearly polarized light whose polarization direction is perpendicular to the direction in which the metal lines 116 extend and linearly polarized light whose reflection polarization direction is parallel to the direction in which the metal lines 116 extend.
- the width of one strip electrode (the width of the reflection region) in each of the pixel electrodes may be 1.5 to 4 ⁇ m, and further may be 2-3 ⁇ m.
- the distance between the adjacent two strip electrodes of each pixel electrode (the width of the slit, the width of the transmissive area) may be 1 to 9 ⁇ m, further may be 2 to 8 ⁇ m, and further may be 3 to 7 ⁇ m.
- the common electrode 123 is located between the pixel electrode 124 and the base substrate 100.
- the common electrode may be, for example, a plate electrode, but is not limited thereto.
- the common electrode 123 may be disposed on the pixel electrode 124, that is, the pixel electrode 124 is located between the common electrode 123 and the substrate substrate 100.
- the wire grid polarizing film 106 can be multiplexed as the common electrode 123 in the sub-pixel 103.
- the wire grid polarizing film 106 multiplexed as a pixel electrode is formed using an easily oxidizable metal such as Al, since aluminum is easily oxidized, in order to further prevent the produced wire grid polarizing film 106 from being oxidized, for example,
- a transparent metal oxide conductive layer 126 such as an ITO film layer, is disposed on the wire grid polarizing film 106. Further, since the transparent metal oxide conductive layer 126 disposed on the wire-gate polarizing film 106 needs to be broken at each sub-pixel, it is inevitable that the added transparent metal oxide conductive layer 126 is patterned, which increases the array. The production process of the substrate.
- the pattern of the transparent metal oxide conductive layer 126 and the wire grid polarizing film 106 may be set to be uniform in each sub-pixel.
- the transparent metal oxide conductive layer 126 and the wire grid polarizing film 106 can be simultaneously formed by one patterning process. The pattern does not increase the number of masks used.
- the pixel electrode is not limited to a slit-shaped electrode as long as it can form a plurality of transmissive regions and a plurality of reflective regions.
- the wire grid polarizing film may not be multiplexed as a pixel electrode, and may be disposed in the same layer as the gate line or the data line, for example.
- the gate line is disposed in the same layer as the gate, and is formed by patterning the same metal film, and the wire grid polarizing film is disposed in the same layer as the gate line and the gate.
- the transmissive area 105 and the reflective area 104 are alternately arranged in the first direction, and the transmissive area 105 and the reflective area 104 are also alternately arranged in the second direction, and the second direction is vertical. In the first direction.
- FIGS. 4b, 4c, 4d, and 5 are described by taking an ADS type array substrate as an example. But it is not limited to this.
- the array substrate provided by the embodiment of the present invention may also be an In-Plane Switching (IPS) mode, a Twisted Nematic (TN) mode, or a Vertical Alignment (VA) mode array substrate. .
- IPS In-Plane Switching
- TN Twisted Nematic
- VA Vertical Alignment
- the wire grid polarizing film may be multiplexed as a pixel electrode.
- the wire grid polarizing film may be disposed in the same layer as a normal metal wire.
- the wire grid polarizing film may be disposed in the same layer as the data lines or the gate lines and insulated from each other.
- the pixel electrode and the common electrode in the array substrate in the IPS mode are multiplexed with the wire grid polarizing film.
- the pixel electrode and the common electrode in each sub-pixel are arranged in the same layer as the interposer structure.
- the wire grid polarizing film 106 multiplexes the pixel electrode and the common electrode as the interdigitated structure in each sub-pixel (for example, the pixel electrode and the common electrode are finger-shaped or comb-like); and the wire grid polarizing film 106 as a pixel electrode is multiplexed;
- the drain 1081 of the thin film transistor disposed at the intersection of the data line 101 and the gate line 102 is electrically connected, and the drain 1081 can be disposed in the same layer as the data line 101.
- Each of the sub-pixels 103 includes a plurality of transmissive regions 105 and a plurality of reflective regions 104, and the transmissive regions 105 and the reflective regions 104 are alternately arranged. Between adjacent two reflective regions 104 is a transmissive region 105. Between adjacent two transmissive regions 105 is a reflective region 104.
- the pixel electrode 124 of the interdigitated structure includes a terminal electrode 1243 and a plurality of strip electrodes 1241 connected to the terminal electrode 1243 (the strip electrodes are not limited to the number in the figure).
- the common electrode of the interdigitated structure includes a terminal electrode 1233 and a plurality of strip electrodes 1231 connected to the terminal electrode 1233 (the strip electrodes are not limited to the number in the drawing).
- a plurality of sets of parallel arranged metal of the wire grid polarizing film 106 The line constitutes a strip electrode 1241 of the pixel electrode and a strip electrode 1231 of the common electrode.
- a region where the plurality of strip electrodes 1241 and 1231 of the pixel electrode and the common electrode are located is a reflective region, and a strip region between the strip electrode 1241 of the adjacent pixel electrode and the strip electrode 1231 of the common electrode is a transmissive region.
- the wire grid polarizing film 106 as the pixel electrode and the common electrode is due to the drain of the thin film transistor. 1081 production in the same layer. Therefore, the portion of the wire grid polarizing film 106 as the pixel electrode 124 can be directly electrically connected to the drain electrode 1081, and the portion of the wire grid polarizing film 106 as the common electrode 123 needs to be connected to the common electrode line 107 through the via hole, and the common electrode line 107 can be It is disposed in the same layer as the gate line 102 and the gate electrode 1084.
- the wire grid polarizing film 106 as the pixel electrode and the common electrode is the same as the gate electrode 1084 of the thin film transistor. Layer production. Therefore, the portion of the wire grid polarizing film 106 as the pixel electrode 124 needs to be electrically connected to the drain electrode 1081 through the via hole, and the portion of the wire grid polarizing film 106 as the common electrode 123 is directly connected to the common electrode line 107, and the common electrode line 107 can be The gate line 102 and the gate 1084 are disposed in the same layer.
- the wire grid polarizing film 106 as the pixel electrode and the common electrode is disposed to be formed simultaneously with the data line 101 or the gate line 102, and the formation can be omitted.
- the pixel electrode and the common electrode above the drain can save the number of masks used and the manufacturing process.
- the oxide conductive layer may be added in the same manner as in the first embodiment, that is, in each sub-pixel, on the wire grid polarizing film 106.
- a transparent metal oxide conductive layer such as an ITO film layer is provided.
- the pattern of the transparent metal oxide conductive layer and the wire grid polarizing film 106 may be set to be uniform in each sub-pixel.
- the wire grid polarizing film may be connected to the pixel electrode or may be connected to the common electrode line as a part of the storage capacitor.
- the wire grid polarizing film 106 may be electrically connected to the pixel electrode in each sub-pixel, thereby constituting Part of the storage capacitor to increase the storage capacitor helps the device to increase the display resolution.
- the wire grid polarizing film 106 and the common electrode line may be electrically connected in each sub-pixel to form a part of the storage capacitor. In order to increase the storage capacitance, the device is improved in display resolution.
- the embodiment of the present invention further provides a liquid crystal display panel. As shown in FIG. 7, the array substrate 10 and the opposite substrate 20 are oppositely disposed, and the liquid crystal layer 30 is filled between the array substrate 10 and the opposite substrate 20.
- the array substrate 10 is any one of the above array substrates provided by the embodiments of the present invention.
- the counter substrate and the array substrate are disposed opposite each other, and the counter substrate and the array substrate are respectively upper and lower substrates of the display panel.
- a display structure such as a thin film transistor array is formed on the array substrate, and a color resin is formed on the counter substrate.
- the opposite substrate is a color film substrate.
- the opposite substrate may include a color filter unit corresponding to the sub-pixels on the array substrate, and may further include a black matrix or the like.
- an upper polarizing plate 230 is disposed on a side of the opposite substrate 20 away from the array substrate 10
- a lower polarizing plate 130 is disposed on a side of the array substrate 10 away from the opposite substrate 20 , and each sub-pixel 103 is provided.
- the wire grid polarizing film 106 is disposed in the same manner.
- the direction in which the plurality of metal wires extend in the wire grid polarizing film 106 and the direction of the polarizing axis (light transmitting axis) of the lower polarizing plate 130 are parallel to each other.
- the polarizing plate transmits only light in the direction of the polarizing axis.
- the backlight module 140 disposed outside the array substrate is generally included.
- the backlight module may include an LED lamp assembly, a reflector, and a light guide.
- other components may be included, which are not limited herein.
- Embodiments of the present invention also provide a display device including any of the above liquid crystal display panels.
- the display device may be any product or component having a display function, such as a mobile phone, a watch, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
- a display function such as a mobile phone, a watch, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
- the polarization axes of the upper polarizing plate 230 and the lower polarizing plate 130 are perpendicular to each other.
- the direction of the polarization axis of the upper polarizing plate 230 is the x-axis.
- the direction of the polarization axis of the lower polarizing plate 130 is the y-axis direction
- the y-axis is the direction perpendicular to the plane of the paper
- the x-axis is the horizontal direction parallel to the plane of the paper.
- the extending direction of the plurality of metal wires of the wire grid polarizing film and the direction of the polarization axis of the lower polarizing plate 130 are parallel to each other, that is, the direction in which the plurality of metal wires extend is the y-axis direction.
- the initial liquid crystal molecules are arranged in the y-axis direction.
- FIG. 7 only partially shows the structure of the display panel or the display device, and other places not mentioned may be referred to the foregoing description or refer to the general design.
- the ambient light passes through the upper polarizer, it becomes linearly polarized light in the x direction, and the linearly polarized light in the x direction can pass through the transmissive region (the transmissive region can transmit natural light), and is finally absorbed when reaching the lower polarizing plate. There is no reflected light, so it is dark.
- the linearly polarized light in the y direction cannot pass through the wire grid polarizing film (the wire grid polarizing film).
- the plurality of metal wires extend in a direction parallel to the direction of the polarization axis of the lower polarizer.
- the linearly polarized light in the y direction passes through the liquid crystal molecules and is still in the y direction, and the upper polarizing plate cannot pass through the polarizing axis in the x direction, so that the light of the backlight cannot pass, and the dark state is exhibited.
- the liquid crystal molecules rotate along the x-y plane, assuming that the phase retardation of the liquid crystal molecules of the brightest state is ⁇ /2.
- the linearly polarized light in the y direction cannot be reflected back through the wire grid polarizing film in the reflection region, and becomes linearly polarized light in the x direction again through the liquid crystal molecules, and can pass through the upper polarizing plate to exhibit a bright state.
- the linearly polarized light in the y direction can pass through the transmissive region and can pass through the lower polarizer to reach the backlight.
- the backlight light passes through the lower polarizer and becomes linearly polarized light in the y direction. That is, the linearly polarized light in the y direction is a linearly polarized light that can pass through the transmissive region and becomes a x direction through the liquid crystal molecules, and can pass through the upper polarizing plate, so that a bright state can be exhibited by the liquid crystal cell.
- the linearly polarized light in the y direction cannot pass through the wire grid polarizing film of the reflection region, and is reflected back.
- the transmissive area is displayed by means of backlight emission, and the reflective area is used to reflect the external environment. Light is achieved. That is to achieve a bright state display.
- the ADS mode is shown in FIG. 8 and the wire grid polarizing film is multiplexed into the pixel electrode, the implementation methods of the above-mentioned bright state and the dark state are not limited to the structure, and other modes provided by the embodiments of the present invention are not limited. Or other conditions can also refer to the implementation of the above bright state and dark state.
- the embodiment of the present invention includes a plurality of transmissive regions and a plurality of reflective regions by using the sub-pixels, so that the transflective display panel and the display device of the array substrate including the seed pixel have more uniform brightness and good overall uniformity.
- a transflective display mode can be realized by providing a wire grid polarizing film in each reflective region, and a transflective display panel with a single box thickness, no additional compensation film, more uniform brightness, and good overall uniformity can be obtained. And display device.
- the transmissive area and the reflective area may be alternately arranged, and the transmissive area 105 and the reflective area 104 may be alternately arranged in the first direction.
- the transmissive area 105 and the reflective area 104 may also be alternately arranged in the second direction, the second direction being perpendicular to the first direction.
- the wire grid polarizing film can be multiplexed into a pixel electrode.
- the wire grid polarizing film may be disposed in the same layer as the gate line or the data line, and the wire grid polarizing film may be fabricated without adding a new patterning process in the conventional array substrate fabrication process, thereby saving the number of mask plates used and Production process, saving production costs and improving production efficiency.
- the array substrate, the liquid crystal display panel and the display device provided by the embodiments of the invention can realize a transflective display mode with more uniform brightness, good overall uniformity, wide viewing angle, single box thickness, simple process and no additional compensation film. It can solve the problem that the usual transflective mode is not good.
- the display panel and the display device provided by the embodiments of the present invention have a simpler structure, do not require an additional compensation film, and can realize wide viewing angle display.
- the film thickness and the area shape of each layer do not reflect the trueness of the array substrate.
- the actual scale is only intended to illustrate the contents of the embodiments of the present invention. It will be understood that when an element such as a layer, a film, a region or a substrate is referred to as being "on” or “lower” Or there may be intermediate elements.
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Abstract
Description
Claims (22)
- 一种阵列基板,包括衬底基板以及设置在所述衬底基板上的多个子像素,其中,各所述子像素所在区域均包括多个透射区域和多个反射区域。
- 如权利要求1所述的阵列基板,其中,所述透射区域和所述反射区域在第一方向上交替排布。
- 如权利要求2所述的阵列基板,其中,所述透射区域和所述反射区域在第二方向上交替排布,所述第二方向垂直于所述第一方向。
- 如权利要求1-3任一项所述的阵列基板,其中,各所述子像素所在区域内的所述多个透射区域和/或所述多个反射区域均匀分布在所述子像素中。
- 如权利要求1-4任一项所述的阵列基板,其中,各所述子像素内均设置有线栅偏光膜,各所述子像素内,所述线栅偏光膜均包括设置在所述多个反射区域内的多组多条平行设置的金属线,每个所述反射区域设置一组所述多条平行设置的金属线,所述线栅偏光膜中的多条平行设置的金属线配置来透过偏振方向垂直于所述金属线延伸方向的线偏振光以及反射偏振方向平行于所述金属线延伸方向的线偏振光。
- 如权利要求5所述的阵列基板,其中,所述金属线材质包括铝、铬、铜、银、镍、铁、钴中的一种或几种的组合。
- 如权利要求5或6所述的阵列基板,还包括多条数据线,其中,所述线栅偏光膜与所述多条数据线同层设置且相互绝缘。
- 如权利要求5或6所述的阵列基板,还包括多条栅线,其中,所述线栅偏光膜与所述多条栅线同层设置且相互绝缘。
- 如权利要求8所述的阵列基板,还包括与所述栅线同层设置且延伸方向相同的公共电极线,其中,在各所述子像素内所述线栅偏光膜与所述公共电极线电性相连。
- 如权利要求5-7任一项所述的阵列基板,其中,各子像素内的线栅偏光膜与所述子像素内的像素电极电性相连。
- 如权利要求5-7任一项所述的阵列基板,还包括薄膜晶体管,其中,所述线栅偏光膜复用作为所述子像素内的像素电极,所述像素电极与所述薄膜晶体管的漏极电性相连。
- 如权利要求11所述的阵列基板,其中,所述子像素内的像素电极为狭缝状电极或梳状电极。
- 如权利要求12所述的阵列基板,还包括公共电极,其中,所述公共电极位于所述像素电极和所述衬底基板之间。
- 如权利要求5-7任一项所述的阵列基板,其中,各所述子像素内,所述线栅偏光膜复用作为所述子像素内的公共电极。
- 如权利要求14所述的阵列基板,其中,所述子像素内的公共电极为狭缝状电极。
- 如权利要求15所述的阵列基板,还包括像素电极和薄膜晶体管,其中,所述像素电极位于所述公共电极和所述衬底基板之间,所述像素电极与所述薄膜晶体管的漏极电性相连。
- 如权利要求5或6所述的阵列基板,其中,所述线栅偏光膜复用作为同层设置的插指结构的像素电极和公共电极。
- 如权利要求5-17任一项所述的阵列基板,其中,在各所述子像素内,在所述线栅偏光膜上设置有透明金属氧化物导电层。
- 如权利要求18所述的阵列基板,其中,在各所述子像素内,所述透明金属氧化物导电层与所述线栅偏光膜的图案一致。
- 一种液晶显示面板,包括:相对而置的对置基板和阵列基板,以及填充在所述阵列基板和对置基板之间的液晶层;其中,所述阵列基板为如权利要求1-19任一项所述的阵列基板。
- 如权利要求20所述的液晶显示面板,其中,所述阵列基板为如权利要求1-4任一项所述的阵列基板的情况下,各所述子像素内均设置线栅偏光膜,各所述子像素内,所述线栅偏光膜均包括设置在所述多个所述反射区域内的多组多条平行设置的金属线,每个所述反射区域设置一组所述多条平行设置的金属线,所述线栅偏光膜中的多条平行设置的金属线配置来透过偏振方向垂直于所述金属线延伸方向的线偏振光以及反射偏振方向平行于所述金属线延伸方向的线偏振光,在所述阵列基板远离所述对置基板的一侧设置有下偏光板,所述多条平行设置的金属线的延伸方向与所述下偏光板的偏光轴的方向相互平行;所述阵列基板为如权利要求5-19任一项所述的阵列基板的情况下,在所 述阵列基板远离所述对置基板的一侧设置有下偏光板,所述多条平行设置的金属线的延伸方向与所述下偏光板的偏光轴的方向相互平行。
- 一种显示装置,包括如权利要求20或21所述的液晶显示面板。
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CN105116641A (zh) * | 2015-09-24 | 2015-12-02 | 京东方科技集团股份有限公司 | 半透半反液晶显示面板及其制备方法、液晶显示装置 |
CN105468201A (zh) * | 2016-01-28 | 2016-04-06 | 京东方科技集团股份有限公司 | 触摸显示基板、触摸显示面板、触摸显示屏及电子设备 |
CN105866874B (zh) * | 2016-06-01 | 2019-03-15 | 武汉华星光电技术有限公司 | 偏光片及具有该偏光片的显示设备 |
KR102607407B1 (ko) * | 2016-06-03 | 2023-11-28 | 삼성디스플레이 주식회사 | 표시 장치 및 이의 제조 방법 |
KR20170143054A (ko) * | 2016-06-17 | 2017-12-29 | 삼성디스플레이 주식회사 | 액정 표시 장치 |
CN105954921B (zh) * | 2016-07-12 | 2019-04-30 | 深圳市华星光电技术有限公司 | 液晶显示器 |
CN107665054A (zh) * | 2016-07-28 | 2018-02-06 | 京东方科技集团股份有限公司 | 触控屏及其制备方法 |
CN106154655A (zh) * | 2016-08-26 | 2016-11-23 | 京东方科技集团股份有限公司 | 一种阵列基板及其制造方法、显示装置及驱动方法 |
CN106405922B (zh) * | 2016-11-02 | 2019-08-09 | 京东方科技集团股份有限公司 | 显示面板、显示面板的制造方法及显示装置 |
CN106547146A (zh) * | 2017-01-22 | 2017-03-29 | 京东方科技集团股份有限公司 | 像素结构及其制造方法、阵列基板和显示装置 |
CN109416481B (zh) * | 2017-03-16 | 2021-10-01 | 京东方科技集团股份有限公司 | 对置基板、显示面板和显示设备 |
CN108873499A (zh) * | 2017-05-12 | 2018-11-23 | 佳升科技有限公司 | 偏光结构 |
TWI634536B (zh) * | 2017-08-16 | 2018-09-01 | 友達光電股份有限公司 | 顯示面板 |
TWI636566B (zh) * | 2017-09-11 | 2018-09-21 | 友達光電股份有限公司 | 顯示面板 |
CN111316160A (zh) * | 2017-11-27 | 2020-06-19 | 金泰克斯公司 | 可切换偏振显示器 |
CN108415192A (zh) * | 2018-03-26 | 2018-08-17 | 京东方科技集团股份有限公司 | 一种显示基板、显示面板、显示装置及其制作方法 |
CN112394563A (zh) * | 2019-08-19 | 2021-02-23 | 苏州大学 | 偏振选择反射结构及具有其的液晶显示*** |
TWI721776B (zh) | 2020-02-06 | 2021-03-11 | 友達光電股份有限公司 | 主動元件基板及其製造方法 |
CN114981716B (zh) * | 2020-12-25 | 2024-04-16 | 京东方科技集团股份有限公司 | 显示基板、显示面板和显示装置 |
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