CN114114744A - Display device - Google Patents
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- CN114114744A CN114114744A CN202111443065.XA CN202111443065A CN114114744A CN 114114744 A CN114114744 A CN 114114744A CN 202111443065 A CN202111443065 A CN 202111443065A CN 114114744 A CN114114744 A CN 114114744A
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- 239000000758 substrate Substances 0.000 claims abstract description 96
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 43
- 239000011159 matrix material Substances 0.000 claims description 19
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 16
- 239000010408 film Substances 0.000 description 12
- 239000010409 thin film Substances 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a display device, which comprises a color film substrate and a display panel; the substrate of the color film substrate is provided with a color pixel area and a transparent pixel area, a plurality of color sub-pixels are arranged in the color pixel area, and a plurality of transparent sub-pixels are arranged in the transparent pixel area; the display panel comprises a transparent substrate, an array substrate and a liquid crystal layer arranged between the transparent substrate and the array substrate, and is provided with a plurality of transparent pixel units; when the display device is in a color display state, the color pixel area is positioned on the light emergent side of the display panel and corresponds to the display area of the display panel; when the display device is in a black-and-white display state, the transparent pixel area is positioned on the light emergent side of the display panel and corresponds to the display area of the display panel. The color pixel area and the transparent pixel area are arranged on the substrate of the color film substrate and alternatively correspond to the display area of the display panel, so that the display device can be switched between color display and black-and-white display, and the utilization rate of light is high during black-and-white display.
Description
Technical Field
The invention relates to the technical field of displays, in particular to a display device.
Background
The display panel has the advantages of lightness, thinness, durability, low power consumption and the like which accord with energy conservation and environmental protection, the electronic paper display becomes a display which accords with the public demand, the electronic paper display can display images by utilizing an external light source, and the backlight source is not needed by a liquid crystal display, so that information on the electronic paper can still be clearly seen under the environment of strong outdoor sunlight without the problem of viewing angle, and the electronic paper display is widely applied to electronic readers (such as electronic books and electronic newspapers) or other electronic elements (such as price labels) due to the advantages of power saving, high reflectivity, contrast ratio and the like.
In the existing products, the electronic paper display adopts reflected ambient light to realize picture display, but the displayed picture is usually black and white, and cannot be switched between black and white display and color display; in addition, the existing color display usually needs to be provided with a color resistance layer for filtering light, so as to realize color display, when a black-and-white picture needs to be displayed, the gray scale voltage is changed to enable the red, green and blue sub-pixels to synthesize the black-and-white picture, and due to the light filtering effect of the color resistance layer, the utilization rate of light is low.
Disclosure of Invention
In order to overcome the drawbacks and deficiencies of the prior art, an object of the present invention is to provide a display device, which solves the problems that the display cannot be switched between black-and-white display and color display, and the light utilization rate is low during black-and-white display in the prior art.
The purpose of the invention is realized by the following technical scheme:
the invention provides a display device, which comprises a color film substrate and a display panel;
the color film substrate comprises a substrate, wherein a color pixel area and a transparent pixel area are arranged on the substrate, a plurality of color sub-pixels distributed in an array manner are arranged in the color pixel area, and a plurality of transparent sub-pixels distributed in an array manner are arranged in the transparent pixel area;
the display panel comprises a transparent substrate, an array substrate, a liquid crystal layer, an upper polarizer and a lower polarizer, wherein the liquid crystal layer is arranged between the transparent substrate and the array substrate, the upper polarizer and the lower polarizer are respectively arranged at the upper side and the lower side of the liquid crystal layer, the light transmission axes of the upper polarizer and the lower polarizer are mutually vertical, and the display panel is provided with a plurality of transparent pixel units which are distributed in an array manner;
when the display device is in a color display state, the color pixel area is positioned on the light emergent side of the display panel and corresponds to the display area of the display panel, and the transparent pixel units correspond to the color sub-pixels one by one; when the display device is in a black-and-white display state, the transparent pixel area is positioned on the light emergent side of the display panel and corresponds to the display area of the display panel, and the transparent pixel units correspond to the transparent sub-pixels one by one.
Further, the color film substrate further comprises a driver, and the driver is used for driving the substrate to move, so that the color pixel area and the transparent pixel area alternatively correspond to the display area.
Furthermore, the substrate is of a flexible annular structure, the substrate is provided with an accommodating cavity, the display panel is arranged in the accommodating cavity, the color pixel area and the transparent pixel area are respectively located on two opposite sides of the accommodating cavity and are parallel to the display panel, and the driver is used for driving the substrate to rotate.
Furthermore, a first black matrix and a second black matrix are arranged on the substrate, the first black matrix is positioned in the color pixel area and separates the color sub-pixels from each other, and the second black matrix is positioned in the transparent pixel area and separates the transparent sub-pixels from each other; or a black matrix is arranged on the transparent substrate and separates the transparent pixel units from one another.
Furthermore, the display device further comprises a light source module, the light source module is arranged on one side, away from the liquid crystal layer, of the lower polarizer, and light rays emitted by the light source module face the display panel.
Furthermore, the display panel further comprises a reflecting layer, and the reflecting layer is arranged on one side of the lower polarizer, which is far away from the liquid crystal layer.
Furthermore, a fluorescent layer is arranged on one side of the reflecting layer facing the liquid crystal layer.
Furthermore, the display device further comprises a light source module, the light source module is arranged on one side, away from the liquid crystal layer, of the lower polarizer, the reflecting layer is arranged on one side, away from the lower polarizer, of the light source module, and light rays emitted by the light source module face the display panel.
Further, the display device further comprises a light source module, the light source module is arranged on one side, away from the liquid crystal layer, of the upper polarizer, and light rays emitted by the light source module face the display panel.
Furthermore, the lower polarizer is arranged on the array substrate, and the upper polarizer is arranged on the transparent substrate or on one side of the light source module close to the liquid crystal layer.
The invention has the beneficial effects that: the method comprises the steps that a color pixel area and a transparent pixel area are arranged on a substrate of a color film substrate, and when a display device needs a color display state, the color pixel area on the color film substrate corresponds to a display area of a display panel; when the display device needs a black-and-white display state, the transparent pixel area on the color film substrate corresponds to the display area of the display panel, so that the display device can be switched between color display and black-and-white display.
Drawings
FIG. 1 is a schematic structural diagram of a display device in a color display state according to one embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a display device in a black-and-white display state according to a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a display panel according to an embodiment of the invention;
FIG. 4 is a schematic plan view of a reflective layer according to an embodiment of the present invention;
FIG. 5 is a second schematic plan view illustrating a reflective layer according to a first embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a display device according to a second embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a display device according to a third embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a display panel and a light source module according to a third embodiment of the present invention;
fig. 9 is a schematic structural diagram of a display panel and a light source module according to a fourth embodiment of the invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the display device according to the present invention with reference to the accompanying drawings and preferred embodiments is as follows:
[ example one ]
Fig. 1 is a schematic structural diagram of a display device according to a first embodiment of the present invention, fig. 2 is a schematic structural diagram of the display device according to the first embodiment of the present invention in a black-and-white display state, fig. 3 is a schematic structural diagram of a display panel according to the first embodiment of the present invention, fig. 4 is a schematic planar structural diagram of a reflective layer according to the first embodiment of the present invention, and fig. 5 is a second schematic planar structural diagram of the reflective layer according to the first embodiment of the present invention.
As shown in fig. 1 to 5, a display device according to an embodiment of the present invention includes a color film substrate 10 and a display panel 20, where the color film substrate 10 is used to control the display device to switch between color display and black-and-white display, and the display panel 20 is used to control gray-scale luminance of the display device, so as to implement picture display.
As shown in fig. 1 and fig. 2, the color filter substrate 10 includes a substrate 11, a color pixel region 111 and a transparent pixel region 112 are disposed on the substrate 11, a plurality of color sub-pixels 111a are disposed in the color pixel region 111, and a plurality of transparent sub-pixels 112a are disposed in the transparent pixel region 112. A color resist layer is disposed in the color pixel region 111, and the color resist layer includes color resist materials of three colors of red (R), green (G), and blue (B), and correspondingly forms sub-pixels of three colors of red (R), green (G), and blue (B), that is, the color sub-pixel 111a includes sub-pixels of three colors of red (R), green (G), and blue (B). And the transparent pixel region 112 is not provided with a color resist layer and is in a transparent state.
As shown in fig. 3, the display panel 20 includes a transparent substrate 21, an array substrate 22, a liquid crystal layer 23, an upper polarizer 24 and a lower polarizer 25, the liquid crystal layer 23 is disposed between the transparent substrate 21 and the array substrate 22, the upper polarizer 24 and the lower polarizer 25 are respectively disposed on the upper side and the lower side of the liquid crystal layer 23, the transmission axes of the upper polarizer 24 and the lower polarizer 25 are perpendicular to each other, and the display panel 20 has a plurality of transparent pixel units distributed in an array. In this embodiment, the upper polarizer 24 is disposed on a side of the transparent substrate 21 away from the liquid crystal layer 23 and attached to the transparent substrate 21, and the lower polarizer 25 is disposed on a side of the array substrate 22 away from the liquid crystal layer 23 and attached to the array substrate 22. The transparent substrate 21 is made of plain glass, and the transparent substrate 21 is transparent without a color resist layer.
As shown in fig. 1, when the display device is in a color display state, the color pixel region 111 is located on the light-emitting side of the display panel 20 and corresponds to the display region of the display panel 20, and the transparent pixel units correspond to the color sub-pixels 111a one-to-one, so that the image displayed by the display device is in color; as shown in fig. 2, when the display device is in a black-and-white display state, the transparent pixel area 112 is located on the light-emitting side of the display panel 20 and corresponds to the display area of the display panel 20, and the transparent pixel units correspond to the transparent sub-pixels 112a one-to-one, so that the display device displays black and white images and has high light transmittance.
In this embodiment, the color filter substrate 10 further includes a driver 12, and the driver 12 is configured to drive the substrate 11 to move, so that the color pixel region 111 and the transparent pixel region 112 alternatively correspond to the display region, so that the display device can be switched between a color display state and a black-and-white display state.
Further, the substrate 11 is a flexible ring-shaped structure, the substrate 11 has a receiving cavity 101, the display panel 20 is disposed in the receiving cavity 101, and the color pixel region 111 and the transparent pixel region 112 are respectively located at two opposite sides of the receiving cavity 101 and are parallel to the display panel 20. For example, in fig. 1, in the color display state, the color pixel region 111 is located at the upper side of the accommodating chamber 101 (i.e., the light exit side of the display panel 20), and the transparent pixel region 112 is located at the lower side of the accommodating chamber 101; as shown in fig. 2, in the black-and-white display state, the transparent pixel region 112 is located at the upper side of the accommodating chamber 101 (i.e., the light exit side of the display panel 20), and the color pixel region 111 is located at the lower side of the accommodating chamber 101. A driver 12 is also provided in the accommodation chamber 101 so that the driver 12 drives the substrate 11 to rotate from inside the substrate 11. The driver 12 includes a roller contacting an inner wall of the substrate 11 and a motor driving the roller to rotate, and drives the substrate 11 to rotate together when the roller rotates. Of course, in other embodiments, the substrate 11 may also be a flat plate structure, and the driver 12 is used to drive the substrate 11 to slide, but the occupied area of the color filter substrate 10 may be increased, which may also increase the area of the display device, and the area of the display area may remain unchanged, which may result in a low space utilization, but this embodiment is not excluded. Alternatively, the driver 12 may drive the display panel 20 to slide so that the display region may selectively correspond to the color pixel region 111 and the transparent pixel region 112.
In this embodiment, the substrate 11 is further provided with a first black matrix 111b and a second black matrix 112b, the first black matrix 111b is located in the color pixel region 111 and separates the plurality of color sub-pixels 111a from each other, and the second black matrix 112b is located in the transparent pixel region 112 and separates the plurality of transparent sub-pixels 112a from each other. Of course, in other embodiments, a black matrix may be disposed on the transparent substrate 21, and the black matrix may space a plurality of transparent pixel units from each other, so that the first and second black matrices 111b and 112b need not be disposed on the substrate 11.
In this embodiment, positive liquid crystal molecules, that is, liquid crystal molecules having positive dielectric anisotropy, are used in the liquid crystal layer 23, and in an initial state, the positive liquid crystal molecules in the liquid crystal layer 23 are aligned parallel to the transparent substrate 21 and the array substrate 22, and the alignment directions of the positive liquid crystal molecules near the transparent substrate 21 and the positive liquid crystal molecules near the array substrate 22 are parallel or antiparallel.
The array substrate 22 defines a plurality of transparent pixel units on a side facing the liquid crystal layer 23 by a plurality of scan lines and a plurality of data lines which are insulated from each other and crossed, a pixel electrode 222 and a thin film transistor are arranged in each transparent pixel unit, and the pixel electrode 222 is electrically connected with the data lines of the adjacent thin film transistors through the thin film transistors. The thin film transistor includes a gate electrode, an active layer, a drain electrode, and a source electrode, the gate electrode and the scan line are located in the same layer and electrically connected, the gate electrode and the active layer are isolated by an insulating layer, the source electrode and the data line are electrically connected, and the drain electrode and the pixel electrode 222 are electrically connected through a contact hole. When the display device is in a color display state, the first black matrix 111b corresponds to the scanning lines and the data lines up and down; when the display device is in a black-and-white display state, the second black matrix 112b vertically corresponds to the scanning lines and the data lines.
As shown in fig. 3, in the present embodiment, a common electrode 221 is further disposed on a side of the array substrate 22 facing the liquid crystal layer 23, and the common electrode 221 and the pixel electrode 222 are located at different layers and insulated and isolated by an insulating layer. The common electrode 221 may be located above or below the pixel electrode 222 (the common electrode 221 is located below the pixel electrode 222 in fig. 3). Preferably, the common electrode 221 is a planar electrode disposed over the entire surface, and the pixel electrode 222 is a block electrode disposed in one block in each transparent pixel unit or a slit electrode having a plurality of electrode bars to form a Fringe Field Switching (FFS) mode. Of course, In other embodiments, the pixel electrode 222 and the common electrode 221 may be located on the same layer, but they are insulated from each other, each of the pixel electrode 222 and the common electrode 221 may include a plurality of electrode strips, and the electrode strips of the pixel electrode 222 and the electrode strips of the common electrode 221 are alternately arranged to form an In-Plane Switching (IPS) mode; alternatively, in other embodiments, the array substrate 22 is provided with the pixel electrode 222 on a side facing the liquid crystal layer 23, and the transparent substrate 21 is provided with the common electrode 221 on a side facing the liquid crystal layer 23 to form a TN mode or a VA mode, and for other descriptions of the TN mode and the VA mode, reference is made to the prior art, and details are not repeated here.
In this embodiment, the display panel 20 further includes a reflective layer 26, and the reflective layer 26 is disposed on a side of the lower polarizer 25 away from the liquid crystal layer 23. The lower polarizer 25 is attached to the side of the array substrate 22 away from the liquid crystal layer 23, and the reflective layer 26 is disposed on the side of the lower polarizer 25 away from the array substrate 22.
Further, a side of the reflective layer 26 facing the liquid crystal layer 23 is provided with a fluorescent layer 261, and when the light is strong, the fluorescent layer 261 can absorb and store the light energy, and when the light is weak, the fluorescent layer 261 can release the light energy and compensate the light.
In this embodiment, the display device does not need to be provided with the light source module 30, and the external ambient light is reflected by the reflective layer 26 to realize image display. That is, the display device in this embodiment can be used as an electronic book. When the ambient light is strong, the reflective layer 26 reflects the external ambient light to realize the image display. Also, the fluorescent layer 261 may absorb a portion of light energy and store it, and the fluorescent layer 261 may emit light and compensate for brightness when light is dark. For example, in a color display, the color resist absorbs a portion of light, so that the display device displays a dark image, and the fluorescent layer 261 can emit light and compensate for the brightness. Of course, the color display state and the black-and-white display state of the display device can be switched according to the intensity of the external environment light. For example, when the external environment light is strong, the display device uses a color display state; when the external environment light is weak, the display device uses a black and white display state.
Further, as shown in fig. 4, the fluorescent layer 261 may be distributed on the reflective layer 26 in a dot shape; as shown in fig. 5, the fluorescent layer 261 may also be distributed on the reflective layer 26 in a stripe shape, so as to prevent the fluorescent layer 261 from completely covering the reflective layer 26, which results in a great decrease in the reflective capability of the reflective layer 26.
[ example two ]
Fig. 6 is a schematic structural diagram of a display device according to a second embodiment of the invention. As shown in fig. 6, the display device according to the second embodiment of the present invention is substantially the same as the display device according to the first embodiment (fig. 1 to fig. 5), except that in this embodiment, the display device further includes a light source module 30, the light source module 30 is disposed on a side of the upper polarizer 24 away from the liquid crystal layer 23, and light emitted from the light source module 30 is directed toward the display panel 20.
In this embodiment, the light source module 30 is disposed on the upper side of the color film substrate 10. The light source module 30 is a lateral light source, the light source module 30 includes a light source 31 and a light guide plate 32, the light source 31 is disposed on a side surface of the light guide plate 32, a plurality of dots are disposed on a side of the light guide plate 32 away from the color filter substrate 10, the dots guide light emitted from the light source 31 to the display panel 20, and the reflective layer 26 can reflect the light source module 30 back and pass through the light guide plate 32, so that a user can see a displayed image, and of course, external ambient light can also pass through the light guide plate 32 and irradiate towards the display panel 20. The light source module 30 can be turned on when the external ambient light is weak, so as to compensate the external ambient light. When the light of the external environment is strong, the light source module 30 can be turned off to reduce the power consumption. Of course, in other embodiments, the light source module 30 may also be disposed in the accommodating cavity 101 of the substrate 11.
In this embodiment, the lower polarizer 25 is disposed on the array substrate 22, and the upper polarizer 24 is disposed on the transparent substrate 21. Of course, the upper polarizer 24 may also be disposed on a side of the light source module 30 close to the liquid crystal layer 23.
In this embodiment, the light source module 30 is disposed on the upper side of the color film substrate 10, so that the light source module 30 provides a light source for the display device, and the display device can be used as an electronic book and a normal display; moreover, the light source module 30 can also protect the color film substrate 10 to a certain extent, so as to prevent the color film substrate 10 from being damaged during rotation.
It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the first embodiment, and are not described herein again.
[ third example ]
Fig. 7 is a schematic structural diagram of a display device according to a third embodiment of the invention, and fig. 8 is a schematic structural diagram of a display panel and a light source module according to the third embodiment of the invention. As shown in fig. 7 and 8, a display device according to a third embodiment of the present invention is substantially the same as the display device according to the second embodiment (fig. 6), except that in the present embodiment, the light source module 30 is disposed in the accommodating cavity 101 of the substrate 11 and located on a side of the lower polarizer 25 away from the liquid crystal layer 23, and light emitted by the light source module 30 is directed toward the display panel 20.
In this embodiment, the display device does not need to have the reflective layer 26 to reflect the external ambient light, and directly provides the light source through the light source module 30. The light source module 30 can provide a stable and reliable light source for the display device no matter the light of the external environment is strong or weak. That is, the light source module 30 is used to provide light source for the display device, whether the display device is used as an electronic book or a normal display. In this embodiment, the light source module 30 may adopt a side-entry light source or a collimated light source.
It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the present embodiment, and are not described herein again.
[ example four ]
Fig. 9 is a schematic structural diagram of a display panel and a light source module according to a fourth embodiment of the invention. As shown in fig. 9, the display device according to the fourth embodiment of the present invention is substantially the same as the display device according to the third embodiment (fig. 7 and 8), except that in the present embodiment, the light source module 30 is disposed in the accommodating cavity 101 of the substrate 11 and located on a side of the lower polarizer 25 away from the liquid crystal layer 23, the reflective layer 26 is disposed on a side of the light source module 30 away from the lower polarizer 25, and light emitted from the light source module 30 is directed toward the display panel 20. That is, in the embodiment, the reflective layer 26 is disposed on a side of the light source module 30 away from the lower polarizer 25, so that the display device can display by using external ambient light, and can also display according to the light source provided by the light source module 30, thereby reducing power consumption. In the embodiment, the light source module 30 is a side-entry light source.
It should be understood by those skilled in the art that the rest of the structure and the operation principle of the present embodiment are the same as those of the present embodiment, and are not described herein again.
In this document, the terms of upper, lower, left, right, front, rear and the like are used to define the positions of the structures in the drawings and the positions of the structures relative to each other, and are only used for the sake of clarity and convenience in technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims. It is also to be understood that the terms "first" and "second," etc., are used herein for descriptive purposes only and are not to be construed as limiting in number or order.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The display device is characterized by comprising a color film substrate (10) and a display panel (20);
the color film substrate (10) comprises a substrate (11), wherein a color pixel area (111) and a transparent pixel area (112) are arranged on the substrate (11), a plurality of color sub-pixels (111a) distributed in an array manner are arranged in the color pixel area (111), and a plurality of transparent sub-pixels (112a) distributed in an array manner are arranged in the transparent pixel area (112);
the display panel (20) comprises a transparent substrate (21), an array substrate (22), a liquid crystal layer (23), an upper polarizer (24) and a lower polarizer (25), the liquid crystal layer (23) is arranged between the transparent substrate (21) and the array substrate (22), the upper polarizer (24) and the lower polarizer (25) are respectively arranged on the upper side and the lower side of the liquid crystal layer (23), the light transmission axes of the upper polarizer (24) and the lower polarizer (25) are mutually vertical, and the display panel (20) is provided with a plurality of transparent pixel units which are distributed in an array manner;
when the display device is in a color display state, the color pixel area (111) is positioned on the light emergent side of the display panel (20) and corresponds to the display area of the display panel (20), and the transparent pixel units correspond to the color sub-pixels (111a) one by one; when the display device is in a black-and-white display state, the transparent pixel regions (112) are located on the light emergent side of the display panel (20) and correspond to the display regions of the display panel (20), and the transparent pixel units correspond to the transparent sub-pixels (112a) one by one.
2. The display device according to claim 1, wherein the color filter substrate (10) further comprises a driver (12), and the driver (12) is configured to drive the substrate (11) to move, so that the color pixel region (111) and the transparent pixel region (112) alternatively correspond to the display region.
3. The display device according to claim 2, wherein the substrate (11) is a flexible ring-shaped structure, the substrate (11) has a receiving cavity (101), the display panel (20) is disposed in the receiving cavity (101), the color pixel region (111) and the transparent pixel region (112) are respectively located at two opposite sides of the receiving cavity (101) and are parallel to the display panel (20), and the driver (12) is configured to drive the substrate (11) to rotate.
4. The display device according to claim 1, wherein a first black matrix (111b) and a second black matrix (112b) are further disposed on the substrate (11), the first black matrix (111b) being located in the color pixel region (111) and spacing the plurality of color sub-pixels (111a) from each other, the second black matrix (112b) being located in the transparent pixel region (112) and spacing the plurality of transparent sub-pixels (112a) from each other; or a black matrix is arranged on the transparent substrate (21), and the black matrix separates the plurality of transparent pixel units from one another.
5. The display device according to claim 1, further comprising a light source module (30), wherein the light source module (30) is disposed on a side of the lower polarizer (25) away from the liquid crystal layer (23), and light emitted from the light source module (30) is directed toward the display panel (20).
6. The display device according to claim 1, wherein the display panel (20) further comprises a reflective layer (26), and the reflective layer (26) is disposed on a side of the lower polarizer (25) away from the liquid crystal layer (23).
7. A display device as claimed in claim 6, characterized in that the side of the reflective layer (26) facing the liquid crystal layer (23) is provided with a fluorescent layer (261).
8. The display device according to claim 6, further comprising a light source module (30), wherein the light source module (30) is disposed on a side of the lower polarizer (25) away from the liquid crystal layer (23), the reflective layer (26) is disposed on a side of the light source module (30) away from the lower polarizer (25), and light emitted from the light source module (30) is directed toward the display panel (20).
9. The display device according to claim 6, further comprising a light source module (30), wherein the light source module (30) is disposed on a side of the upper polarizer (24) away from the liquid crystal layer (23), and light emitted from the light source module (30) is directed toward the display panel (20).
10. The display device according to claim 9, wherein the lower polarizer (25) is disposed on the array substrate (22), and the upper polarizer (24) is disposed on the transparent substrate (21) or on a side of the light source module (30) close to the liquid crystal layer (23).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114942543A (en) * | 2022-05-25 | 2022-08-26 | Tcl华星光电技术有限公司 | Display device |
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| CN107463032A (en) * | 2017-09-29 | 2017-12-12 | 上海天马微电子有限公司 | Liquid crystal display panel and display device |
| CN111812870A (en) * | 2020-07-06 | 2020-10-23 | 昆山龙腾光电股份有限公司 | Display panel and display device |
| US20200393728A1 (en) * | 2019-06-17 | 2020-12-17 | Shanghai Tianma Micro-Electronics Co.,Ltd. | Display panel and display device |
| CN214751220U (en) * | 2021-06-21 | 2021-11-16 | 昆山龙腾光电股份有限公司 | Display panel and display device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107463032A (en) * | 2017-09-29 | 2017-12-12 | 上海天马微电子有限公司 | Liquid crystal display panel and display device |
| US20200393728A1 (en) * | 2019-06-17 | 2020-12-17 | Shanghai Tianma Micro-Electronics Co.,Ltd. | Display panel and display device |
| CN111812870A (en) * | 2020-07-06 | 2020-10-23 | 昆山龙腾光电股份有限公司 | Display panel and display device |
| CN214751220U (en) * | 2021-06-21 | 2021-11-16 | 昆山龙腾光电股份有限公司 | Display panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114942543A (en) * | 2022-05-25 | 2022-08-26 | Tcl华星光电技术有限公司 | Display device |
| CN114942543B (en) * | 2022-05-25 | 2023-05-30 | Tcl华星光电技术有限公司 | Display device |
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