CN108169967B - Display panel, driving circuit and display device - Google Patents
Display panel, driving circuit and display device Download PDFInfo
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- CN108169967B CN108169967B CN201810003074.9A CN201810003074A CN108169967B CN 108169967 B CN108169967 B CN 108169967B CN 201810003074 A CN201810003074 A CN 201810003074A CN 108169967 B CN108169967 B CN 108169967B
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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
- G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
Abstract
The invention discloses a display panel, a driving circuit and a display device, wherein the display panel comprises: the display panel comprises a first substrate, a second substrate and a third substrate, wherein the second substrate and the third substrate are respectively arranged on two sides of the first substrate; a first display mode liquid crystal is arranged between the second substrate and the first substrate; a second display mode liquid crystal is arranged between the third substrate and the first substrate; the first substrate is an array substrate or a color film substrate; the second substrate and the third substrate are color film substrates or array substrates corresponding to the first substrate; the array substrate or the color film substrate is a light-emitting substrate. The display panel, the driving circuit and the display device can be compatible with the advantages of different liquid crystal display modes, so that the diversified requirements of users are met, the functions of the display panel are improved, and the user experience is improved.
Description
Technical Field
The present invention relates to the field of liquid crystal display technologies, and in particular, to a display panel, a driving circuit, and a display device.
Background
An existing liquid crystal display panel is generally formed by a color film substrate and an array substrate in a box-to-box manner, and then liquid crystal is arranged between the color film substrate and the array substrate, but based on the difference of the liquid crystal between the color film substrate and the array substrate, the LCD generally has three different display modes of TN, ADS and VA. Fig. 1 shows a schematic diagram of a cross-sectional device and a display principle of a conventional TN (twisted nematic) display panel, which mainly includes 3 parts: the liquid crystal display panel comprises a CF color film substrate 1, a liquid crystal 2 and a TFT array substrate 3, wherein when the device is in an OFF (OFF) state, an optical path extends out of the CF substrate through the aligned liquid crystal 2 to display a white state, and when the device is in an ON (ON) state, an electric field is formed between the CF substrate and the TFT substrate, so that the liquid crystal 2 is aligned again, the optical path cannot penetrate through the liquid crystal 2 to display a black state, and therefore, the TN type liquid crystal display panel is a normally white mode panel. Fig. 2 shows a schematic view of a cross-sectional device and a display principle of an existing ADS (advanced super-dimensional field switching) display panel, which is similar to a TN display panel in structure and also includes three parts, namely a TFT array substrate 3, a liquid crystal 2 and a CF color film substrate 1, unlike the TN display panel, when the device is in an OFF (OFF) state, the liquid crystal is distributed in parallel in the box, and an optical path cannot pass through the liquid crystal to display a "black state", and when the device is in an ON (ON) state, the liquid crystal is driven by an electric field of the array substrate to rotate transversely, so that the optical path can pass through the liquid crystal to display a "white state", and thus the ADS liquid crystal display panel is a panel in a normally black mode.
In addition, the TN type display panel and the ADS type display panel have advantages and disadvantages, and most obviously, the TN type display panel has high brightness but a relatively small viewing angle, while the ADS type display panel has relatively low brightness but a relatively large viewing angle. However, with the popularization of diversified applications of mobile phones and tablet computers, the existing mobile phones or tablet computers cannot meet the requirements of customers, such as: when a mobile phone or a tablet computer is used for playing video films and the like, a user often wants to share the video films and the like with people around the user, so that the panel is expected to have a wider viewing angle, and when the user processes private services (such as sending short messages, receiving and sending mails and the like) by using the mobile phone or the tablet computer, some privacy is required, the panel is expected to have a narrower viewing angle, and the TN panel or the ADS panel with a single mobile phone panel cannot meet the two requirements at the same time.
Therefore, in the process of implementing the present application, the inventors found that the prior art has at least the following defects: the single display mode in the current display panel cannot meet the diversified requirements of users.
Disclosure of Invention
In view of the above, the present invention is directed to a display panel, a driving circuit and a display device, which are compatible with the advantages of different liquid crystal display modes, so as to meet the diversified requirements of users, improve the functions of the display panel and improve the user experience.
The present invention provides a display panel based on the above object, including: the display panel comprises a first substrate, a second substrate and a third substrate, wherein the second substrate and the third substrate are respectively arranged on two sides of the first substrate; a first display mode liquid crystal is arranged between the second substrate and the first substrate; a second display mode liquid crystal is arranged between the third substrate and the first substrate; the first substrate is an array substrate or a color film substrate; the second substrate and the third substrate are color film substrates or array substrates corresponding to the first substrate; the array substrate or the color film substrate is a light-emitting substrate.
Optionally, the first substrate is a light emitting substrate.
Optionally, the second substrate is disposed on a side of the first substrate close to the display side; the first display mode liquid crystal has a normally bright characteristic.
Optionally, the first display mode liquid crystal is a TN type liquid crystal, and the second display mode liquid crystal is an ADS type liquid crystal or the second display mode liquid crystal is a VA type liquid crystal.
Optionally, the light emitting substrate is an OLED substrate.
The present application further provides a driving circuit based on any one of the above display panels, the driving circuit including: the driving circuit comprises a gating unit, a first switching unit, a second switching unit, a first driving unit, a second driving unit, a third switching unit and a fourth switching unit; the gating unit is respectively connected with the control ends of the first switch unit and the second switch unit; the input ends of the first switch unit and the second switch unit are connected with a data line; the output end of the first switch unit is connected with the control ends of the first drive unit and the third switch unit; the output end of the second switch unit is connected with the control ends of the second driving unit and the fourth switch unit; the input ends of the third switching unit and the fourth switching unit are connected with the first power voltage, and the output ends of the third switching unit and the fourth switching unit are connected with the light-emitting substrate;
the first driving unit is used for charging the pixels corresponding to the first display mode liquid crystal, and the second driving unit is used for charging the pixels corresponding to the second display mode liquid crystal.
Optionally, the gating unit includes a first gating signal and a second gating signal; the first gating signal is connected with the control end of the first switch unit; the second gating signal is connected with the control end of the second switch unit.
Optionally, the first switch unit, the second switch unit, the third switch unit and the fourth switch unit are all thin film transistors; the grid electrode of the thin film transistor is a control end, the first electrode of the thin film transistor is an input end, and the second electrode of the thin film transistor is an output end; the first electrode of the thin film transistor is a source electrode or a drain electrode, and the second electrode of the thin film transistor is a drain electrode or a source electrode corresponding to the first electrode.
Optionally, the first driving unit includes a first storage capacitor and a first liquid crystal capacitor; the output end of the first switch unit is respectively connected with the first end of the first storage capacitor and the first end of the first liquid crystal capacitor, and the second end of the first storage capacitor and the second end of the first liquid crystal capacitor are both connected with a second power supply voltage;
the second driving unit comprises a second storage capacitor and a second liquid crystal capacitor; the output end of the second switch unit is respectively connected with the first end of the second storage capacitor and the first end of the second liquid crystal capacitor, and the second end of the second storage capacitor and the second end of the second liquid crystal capacitor are both connected with a third power supply voltage.
The application also provides a display device which comprises the display panel.
As can be seen from the above, according to the display panel, the driving circuit and the display device provided by the invention, by designing a display panel structure simultaneously including two different display mode liquid crystals, the two different display mode liquid crystals share one substrate, and then one of the array substrate or the color film substrate is set as a light-emitting substrate, so that the two different display mode liquid crystals can be ensured to realize respective display through self-light-emitting design. Therefore, the display panel structure designed by the application is compatible with different display modes, so that a user can select different display modes in different environments according to requirements, the respective advantages of different liquid crystal display modes can be utilized, and richer adaptability and practicability are embodied. Therefore, the display panel, the driving circuit and the display device can be compatible with the advantages of different liquid crystal display modes, so that the diversified requirements of users are met, the functions of the display panel are improved, and the user experience is improved.
Drawings
FIG. 1 is a schematic cross-sectional view of a TN type display panel and a display principle in the prior art;
FIG. 2 is a schematic diagram of a cross-sectional device and a display principle of an ADS type display panel in the prior art;
FIG. 3 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating a display principle of the display panel according to the present invention when displaying a TN mode;
FIG. 5 is a schematic diagram illustrating a display principle of the display panel in the ADS mode;
FIG. 6 is a block diagram of a driving circuit of a display panel according to an embodiment of the present invention;
fig. 7 is a schematic circuit diagram of a display panel driving circuit according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
In order to solve the problem that the current display panel is difficult to meet the diversified requirements of users based on advantages and disadvantages of different display modes, the applicant researches and discovers that the compatibility of different display modes can be realized by a mode of sharing a substrate by utilizing the difference of the normally bright and normally dark characteristics corresponding to the liquid crystals of the different display modes. In addition, in view of the light source problem of the display panel, the applicant proposes that a substrate with a self-luminous effect can be used as a light source to realize display in different display modes, such as OLED technology, which is a technology that is popular and rapidly developed in recent years, and an OLED panel can emit light autonomously, and is currently applied more and more widely in the panel field.
Fig. 3 is a schematic structural diagram of an embodiment of a display panel provided in the present invention. The display panel comprises a first substrate 4, and a second substrate 5 and a third substrate 6 which are respectively arranged at two sides of the first substrate 4; a first display mode liquid crystal 7 is arranged between the second substrate 5 and the first substrate 4; a second display mode liquid crystal 8 is arranged between the third substrate 6 and the first substrate 4; the first substrate 4 is an array substrate or a color film substrate; the second substrate 5 and the third substrate 6 are color film substrates or array substrates corresponding to the first substrate 4; that is, if the first substrate 4 is an array substrate, the second substrate 5 and the third substrate 6 on both sides of the first substrate 4 are color film substrates; on the contrary, if the first substrate 4 is a color film substrate, the second substrate 5 and the third substrate 6 on both sides of the first substrate 4 are both array substrates; the array substrate or the color film substrate is a light-emitting substrate. That is, it is necessary to provide one of the substrates as a light emitting substrate so that effective display of liquid crystals of different display modes can be realized. Preferably, the first substrate is a light emitting substrate. The first substrate shared in the middle is set as the light-emitting substrate, so that only one light-emitting substrate is needed by the whole display panel instead of the light-emitting substrates arranged on two sides, and cost saving and interference among different light sources are facilitated.
As can be seen from the above embodiments, in the display panel of the present application, by designing a display panel structure including two different display mode liquid crystals, the two different display mode liquid crystals share one substrate, and then one of the array substrate or the color filter substrate is set as a light-emitting substrate, so that the self-light-emitting design can ensure that the two different display mode liquid crystals can achieve respective display. Therefore, the display panel structure designed by the application is compatible with different display modes, so that a user can select different display modes in different environments according to requirements, the respective advantages of different liquid crystal display modes can be utilized, and richer adaptability and practicability are embodied. Therefore, the display panel can be compatible with the advantages of different liquid crystal display modes, and further meets the diversified requirements of users, the functions of the display panel are improved, and the user experience is improved.
In some alternative embodiments of the present application, the second substrate 5 is disposed on a side of the first substrate 4 close to the display side; the first display mode liquid crystal 7 has a normally bright characteristic. In this way, when the second display mode liquid crystal 8 located below is selected to operate, since the first display mode liquid crystal 7 located above has a normally-on characteristic, it is possible to ensure that the light path appears directly through the first display mode liquid crystal 7 to the display side of the display panel.
In some optional embodiments of the present application, the first display mode liquid crystal 7 is a TN-type liquid crystal, and the second display mode liquid crystal 8 is an ADS-type liquid crystal or the second display mode liquid crystal is a VA-type liquid crystal. Therefore, the display panel not only comprises the TN display mode but also comprises the ADS display mode, and the intermediate light-emitting substrate can be used for selecting the light-emitting circuit to switch between the TN mode and the ADS mode according to the user experience requirements, so that the advantages and the disadvantages of the two display modes can be freely selected.
More specifically, referring to fig. 4, a schematic diagram of a display principle when the display panel provided by the present invention displays a TN mode is shown; fig. 5 is a schematic diagram of a display principle of the display panel according to the present invention when displaying the ADS mode. As can be seen from fig. 4, when the display panel adopts the TN display mode, the first display mode liquid crystal 7 is turned on, so that the display panel can realize a narrow visual range, and since the second display mode liquid crystal 8 is located below and is in the normally black mode when not operating, the TN display mode above is not adversely affected. Similarly, as can be seen from fig. 5, when the display panel adopts the ADS display mode, the second display mode liquid crystal 8 is turned on, so that the display panel can realize a wider visual range, and since the first display mode liquid crystal 7 above the second display mode liquid crystal is in a normally bright mode when not in operation, light passing through the first display mode liquid crystal 7 and finally reaching the display interface is not affected. Therefore, the present embodiment provides a liquid crystal display panel having both TN and ADS display modes and capable of selectively switching the display modes, where the display panel also includes three portions, namely an array substrate, a liquid crystal and a color filter substrate, and the difference is that the liquid crystal includes two portions, namely a liquid crystal in the TN display mode and a liquid crystal in the ADS display mode, and the color filter substrate includes two portions, namely a color filter substrate corresponding to the TN mode and a color filter substrate corresponding to the ADS mode. Like this, this application display panel can perfectly solve "sharing nature" and "privacy nature" compatible problem: 1) when a user wants to share with people around, the display panel is switched to the ADS mode, the TN panel above does not work at the moment, and the TN panel is in the normally white mode, so that light paths can pass through, and wide-viewing-angle display is realized; 2) when a user wants to have personal privacy, the device is switched to the TN mode, the ADS at the lower part does not work at the moment, and the display at the upper part is not influenced as the normally black mode, so that the narrow-view-angle display is realized.
In some optional embodiments of the present application, the light emitting substrate is an OLED substrate. Therefore, the display panel can realize the switching between different display modes through the OLED light-emitting substrate.
It should be noted that the above embodiments of the present application only provide examples of some common liquid crystal display modes such as TN, ADS, and VA, and analyze the advantages and disadvantages of the common liquid crystal display modes, and actually, the design may be adjusted according to the characteristics and properties of more different display modes, so the present application does not limit the specific display modes. In addition, the adoption of the OLED to realize the light-emitting substrate is also only an optional scheme, and the display panel can also adopt other structures capable of realizing self-light-emitting design.
Referring to fig. 6, a block diagram of a driving circuit of a display panel according to an embodiment of the present invention is shown. In order to realize the switching structure of different liquid crystal display modes described in the above embodiments, it is necessary to design a corresponding driving circuit for signal control. This application adopts the drive circuit who corresponds with the structure, and is specific, display panel's drive circuit includes: a gate unit 11, a first switching unit 12, a second switching unit 15, a first driving unit 13, a second driving unit 16, a third switching unit 14, and a fourth switching unit 17; the gating unit 11 is respectively connected with the control ends of the first switch unit 12 and the second switch unit 15, and is used for respectively controlling the on and off of the first switch unit 12 and the second switch unit 15; the input ends of the first switch unit 12 and the second switch unit 15 are connected with a data line; the output end of the first switching unit 12 is connected with the control ends of the first driving unit 13 and the third switching unit 14; in this way, the signal in the data line is output through the first switching unit 12 and input to the first driving unit 13 for driving the first display mode liquid crystal, that is, the first driving unit is used for charging the pixel corresponding to the first display mode liquid crystal, and input to the third switching unit 14 for controlling the on and off of the third switching unit 14. The output end of the second switching unit 15 is connected with the control ends of the second driving unit 16 and the fourth switching unit 17; thus, the signal in the data line is output through the second switch unit 15 and input to the second driving unit 16 for driving the second display mode liquid crystal, that is, the second driving unit is used for charging the pixel corresponding to the second display mode liquid crystal, and input to the fourth switch unit 17 for controlling the fourth switch unit 17 to be turned on and off. The input ends of the third switching unit 14 and the fourth switching unit 17 are both connected with a first power voltage, and the output ends of the third switching unit 14 and the fourth switching unit 17 are both connected with the light emitting substrate 18; in this way, the voltage signal in the first power supply voltage connection is caused to be input into the light emitting substrate 18 through the third switching unit 14 or the fourth switching unit 17 so that the light emitting substrate 18 emits light.
According to the embodiment, a user can know that the switching of different display modes in the display panel is respectively realized through controlling the gating unit 11, so that different display effects are achieved, and the user experience is improved.
Fig. 7 is a schematic circuit structure diagram of a display panel driving circuit according to an embodiment of the present invention. As can be seen, the gating unit 11 includes a first gating signal GATE1 and a second gating signal GATE 2; the first gating signal GATE1 is connected to the control terminal of the first switching unit 12; the second gating signal GATE2 is connected to the control terminal of the second switching unit 15. Therefore, only different gating signals need to be gated to realize the switching display influencing the display mode.
The first switching unit 12, the second switching unit 15, the third switching unit 14 and the fourth switching unit 17 are all thin film transistors; correspondingly, the first switch unit 12 is a first thin film transistor T1, the second switch unit 15 is a second thin film transistor T2, the third switch unit 14 is a third thin film transistor T3, and the fourth switch unit 17 is a fourth thin film transistor T4; the grid electrode of the thin film transistor is a control end, the first electrode of the thin film transistor is an input end, and the second electrode of the thin film transistor is an output end; the first electrode of the thin film transistor is a source electrode or a drain electrode, and the second electrode of the thin film transistor is a drain electrode or a source electrode corresponding to the first electrode. Therefore, the control of the thin film transistor not only realizes the control of the switching signal, but also enables the whole structure to be easily realized and prepared in the display panel.
The first driving unit 13 includes a first storage capacitor Cst1 and a first liquid crystal capacitor Clc 1; the output terminal of the first switch unit 12 is respectively connected to a first terminal of a first storage capacitor Cst1 and a first terminal of a first liquid crystal capacitor Clc1, and a second terminal of the first storage capacitor Cst1 is connected to a second power voltage Vcom 1; the second driving unit 16 includes a second storage capacitor Cst2 and a second liquid crystal capacitor Clc 2; the output terminal of the second switch unit 15 is respectively connected to the first terminal of the second storage capacitor Cst2 and the first terminal of the second liquid crystal capacitor Clc2, and the second terminal of the second storage capacitor Cst2 and the second terminal of the second liquid crystal capacitor Clc2 are both connected to a third power voltage Vcom 2. Thus, signals in the data lines can be respectively input into the storage capacitors and the liquid crystal capacitors corresponding to different display modes through the structure; the liquid crystal capacitor is used for keeping the pixel voltage after the pixel is charged, and the storage capacitor is added to the pixel liquid crystal capacitor, so that the attenuation of the pixel voltage caused by electric leakage can be reduced, and the stability of the pixel voltage is ensured.
For the circuit shown in fig. 7, when the TN mode is displayed, the signals are selected as GATE1, Vcom1, Data and VDD signals, GATE1 is responsible for turning on the first thin film transistor T1, the Data signal is input, and the pixel corresponding to the TN mode is charged and displayed in combination with Vcom1, and at the same time, the pixel voltage turns on the third thin film transistor T3, and the first power voltage VDD is input to make the OLED emit light and operate. When the ADS mode is displayed, the signals are selected to be GATE2, Vcom2, Data, and VDD signals, the GATE2 is responsible for turning on the second thin film transistor T2, the Data signal is input to combine with Vcom2 to charge the pixel corresponding to the ADS mode for display, meanwhile, the pixel voltage turns on the fourth thin film transistor T4, and the VDD input enables the OLED to emit light to operate. That is, GATE1 and Vcom1 are a set of signals, and GATE2 and Vcom2 are another set of signals, and the specific switching requirement has a customer's free choice, and the switching manner may be to set a key on the device product, or to install a switching APP, etc., which is not limited in this application.
In other embodiments of the present application, a display device is further disclosed, and the display device includes the display panel according to any one of the above embodiments. Therefore, the display device has the same effect as the display panel, and the description of the present embodiment will not be repeated.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
In addition, well known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures for simplicity of illustration and discussion, and so as not to obscure the invention. Furthermore, devices may be shown in block diagram form in order to avoid obscuring the invention, and also in view of the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the present invention is to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the invention, it should be apparent to one skilled in the art that the invention can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.
While the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic ram (dram)) may use the discussed embodiments.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (8)
1. A display panel, comprising: the display panel comprises a first substrate, a second substrate and a third substrate, wherein the second substrate and the third substrate are respectively arranged on two sides of the first substrate; a first display mode liquid crystal is arranged between the second substrate and the first substrate; a second display mode liquid crystal is arranged between the third substrate and the first substrate; the first substrate is an array substrate or a color film substrate; the second substrate and the third substrate are color film substrates or array substrates corresponding to the first substrate; the first substrate is a light-emitting substrate; the second substrate is arranged on one side of the first substrate close to the display side; the first display mode liquid crystal is close to the display side relative to the second display mode liquid crystal; the first display mode liquid crystal is in a normally bright mode when not operating.
2. The display panel according to claim 1, wherein the first display mode liquid crystal is a TN-type liquid crystal, the second display mode liquid crystal is an ADS-type liquid crystal or the second display mode liquid crystal is a VA-type liquid crystal.
3. The display panel according to claim 1 or 2, wherein the light emitting substrate is an OLED substrate.
4. A driving circuit based on the display panel of any one of claims 1 to 3, comprising: the driving circuit comprises a gating unit, a first switching unit, a second switching unit, a first driving unit, a second driving unit, a third switching unit and a fourth switching unit; the gating unit is respectively connected with the control ends of the first switch unit and the second switch unit; the input ends of the first switch unit and the second switch unit are connected with a data line; the output end of the first switch unit is connected with the control ends of the first drive unit and the third switch unit; the output end of the second switch unit is connected with the control ends of the second driving unit and the fourth switch unit; the input ends of the third switching unit and the fourth switching unit are connected with the first power voltage, and the output ends of the third switching unit and the fourth switching unit are connected with the light-emitting substrate;
the first driving unit is used for charging the pixels corresponding to the first display mode liquid crystal, and the second driving unit is used for charging the pixels corresponding to the second display mode liquid crystal.
5. The driving circuit of the display panel according to claim 4, wherein the gate unit includes a first gate signal and a second gate signal; the first gating signal is connected with the control end of the first switch unit; the second gating signal is connected with the control end of the second switch unit.
6. The driving circuit of the display panel according to claim 4, wherein the first switching unit, the second switching unit, the third switching unit, and the fourth switching unit are all thin film transistors; the grid electrode of the thin film transistor is a control end, the first electrode of the thin film transistor is an input end, and the second electrode of the thin film transistor is an output end; the first electrode of the thin film transistor is a source electrode or a drain electrode, and the second electrode of the thin film transistor is a drain electrode or a source electrode corresponding to the first electrode.
7. The driving circuit of the display panel according to claim 4, wherein the first driving unit includes a first storage capacitor and a first liquid crystal capacitor; the output end of the first switch unit is respectively connected with the first end of the first storage capacitor and the first end of the first liquid crystal capacitor, and the second end of the first storage capacitor and the second end of the first liquid crystal capacitor are both connected with a second power supply voltage;
the second driving unit comprises a second storage capacitor and a second liquid crystal capacitor; the output end of the second switch unit is respectively connected with the first end of the second storage capacitor and the first end of the second liquid crystal capacitor, and the second end of the second storage capacitor and the second end of the second liquid crystal capacitor are both connected with a third power supply voltage.
8. A display device characterized in that the display device comprises the display panel according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810003074.9A CN108169967B (en) | 2018-01-02 | 2018-01-02 | Display panel, driving circuit and display device |
Applications Claiming Priority (1)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1949349A (en) * | 2005-10-13 | 2007-04-18 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device and driving method thereof |
| CN103792742A (en) * | 2014-01-23 | 2014-05-14 | 京东方科技集团股份有限公司 | Liquid crystal display device |
| CN105629541A (en) * | 2015-12-30 | 2016-06-01 | 武汉华星光电技术有限公司 | Double-face display device |
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| CN103676364A (en) * | 2013-12-20 | 2014-03-26 | 深圳市华星光电技术有限公司 | Display panel |
| CN104391405A (en) * | 2013-12-31 | 2015-03-04 | 深圳市华星光电技术有限公司 | Display module and LCD (Liquid Crystal Display) device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1949349A (en) * | 2005-10-13 | 2007-04-18 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device and driving method thereof |
| CN103792742A (en) * | 2014-01-23 | 2014-05-14 | 京东方科技集团股份有限公司 | Liquid crystal display device |
| CN105629541A (en) * | 2015-12-30 | 2016-06-01 | 武汉华星光电技术有限公司 | Double-face display device |
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