CN107463032B - Liquid crystal display panel and display device - Google Patents
Liquid crystal display panel and display device Download PDFInfo
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- CN107463032B CN107463032B CN201710905674.XA CN201710905674A CN107463032B CN 107463032 B CN107463032 B CN 107463032B CN 201710905674 A CN201710905674 A CN 201710905674A CN 107463032 B CN107463032 B CN 107463032B
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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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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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
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134327—Segmented, e.g. alpha numeric display
Abstract
The invention provides a liquid crystal display panel and a display device, comprising: the liquid crystal display panel comprises an upper substrate, a lower substrate and a liquid crystal layer positioned between the upper substrate and the lower substrate, wherein the lower substrate comprises a pixel electrode and a field display electrode, the pixel electrode is positioned on one side of the field display electrode, which faces the upper substrate, and is arranged at an insulating interval with the field display electrode, and the upper substrate comprises a common electrode; the color filter is positioned on the upper substrate or the lower substrate; in a first display state, the pixel electrode has a data voltage, and the common electrode has a common voltage; in a second display state, the field display electrode has a field display voltage, the common electrode has a common voltage, and the pixel electrode is floating. The free switching between black-and-white field display and color image display can be realized in the same liquid crystal display panel, and the purpose of reducing power consumption during black-and-white field display is achieved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a liquid crystal display panel and a display device thereof.
Background
As the display panel is more and more commonly used in various electronic devices, for example, the display panel has been widely used in devices such as smart phones, tablet personal computers, laptop computers, digital cameras, camcorders, Personal Digital Assistants (PDAs), and thin televisions, and research on the display panel has been more and more intensive.
With the development of display technology, display screens undergo a significant change from black and white to color, and bring rich sensory experience to people. At present, a commonly used color display is a liquid crystal display panel, and the development principle of the conventional liquid crystal display is to place liquid crystal between a lower substrate and a color film substrate, and drive the liquid crystal by an electric field generated between two electrodes to cause an electric field effect of liquid crystal molecules so as to control the light source transmission or shielding function, thereby displaying an image. A color liquid crystal display is provided with a color filter, each pixel unit is generally composed of three sub-pixels which respectively correspond to three color resistance areas of red (R), green (G) and blue (B) on the color filter, the red (R), green (G) and blue (B) signals of an image provided by a driving integrated circuit respectively drive the corresponding sub-pixels, and a white light source presents different colors when passing through the color resistance areas of different colors on the color filter, so that the display of a color image is realized. In addition, in the conventional red (R), green (G) and blue (B) three-color liquid crystal display, different driving voltages are set by the driving integrated circuit, the liquid crystal display is driven to display different gray scales, the power consumption is high, and if the power consumption is reduced by adopting a frequency reduction mode, pixel leakage occurs, which causes abnormal display brightness of the middle gray scale, and further causes abnormal image color.
However, in practical applications, it is often necessary to display a black and white screen, for example, when a mobile phone or a wearable device such as a wristwatch is in a standby state, a part or all of the display panel is also required to be in a black and white display state for displaying time or incoming call prompts, but if the black and white screen is displayed by the conventional color display, a large amount of energy is consumed, which results in a waste of electric energy.
Disclosure of Invention
The invention provides a liquid crystal display panel and a display device capable of switching between black-and-white field display and color image display and reducing drive power consumption during black-and-white field display.
First, the present invention provides a liquid crystal display panel, comprising: the liquid crystal display panel comprises an upper substrate, a lower substrate and a liquid crystal layer positioned between the upper substrate and the lower substrate, wherein the lower substrate comprises a pixel electrode and a field display electrode, the pixel electrode is positioned on one side of the field display electrode, which faces the upper substrate, and is arranged at an interval with the field display electrode in an insulating manner, and the upper substrate comprises a common electrode; the color filter is positioned on the upper substrate or the lower substrate; in a first display state, the pixel electrode has a data voltage, and the common electrode has a common voltage; in a second display state, the field display electrode has a field display voltage, the common electrode has a common voltage, and the pixel electrode is floating.
In one embodiment of the present invention, in the first display state, the field display electrode has the same common voltage as the common electrode.
In one embodiment of the present invention, the liquid crystal display panel needs to be subjected to a discharge process before switching from the first display state to the second display state.
In an embodiment of the present invention, the lower substrate further includes a data line and a scan line, the data line and the scan line are crossed to form a plurality of pixel units arranged in an array, each pixel unit includes a plurality of sub-pixels, a switch element and a pixel electrode are disposed in each sub-pixel, and the pixel electrode is electrically connected to the corresponding data line through the switch element.
In an embodiment of the invention, the pixel unit at least includes a first sub-pixel, a second sub-pixel and a third sub-pixel, which respectively correspond to a red color resistance, a green color resistance and a blue color resistance of the color filter; each field display electrode covers N pixel units, wherein N is a positive integer.
In an embodiment of the invention, the liquid crystal display panel further includes an integrated circuit including an electrode control unit, and the field display electrodes are electrically connected to the electrode control unit through connection lines, respectively.
In one embodiment of the present invention, the connection line and the scan line are formed in the same layer, or the connection line and the data line are formed in the same layer.
The invention further provides a display device comprising any one of the liquid crystal display panels.
In an embodiment of the invention, a liquid crystal display panel in the display device is a transmissive liquid crystal display panel, the pixel electrode and the field display electrode are transparent conductive electrodes, and the display device further includes a backlight module.
In one embodiment of the present invention, the liquid crystal display panel in the above display device is a reflective liquid crystal display panel, and the pixel electrode is multiplexed as a reflective electrode; the color filter is positioned between the pixel electrode and the upper substrate.
Compared with the prior art, the technical scheme provided by the invention has the following advantages: the invention provides a liquid crystal display panel, comprising: the liquid crystal display panel comprises an upper substrate, a lower substrate and a liquid crystal layer positioned between the upper substrate and the lower substrate, wherein the lower substrate comprises a pixel electrode and a field display electrode, the pixel electrode is positioned on one side of the field display electrode, which faces the upper substrate, and is arranged at an interval with the field display electrode in an insulating manner, and the upper substrate comprises a common electrode; the color filter is positioned on the upper substrate or the lower substrate; in a first display state, the pixel electrode has a data voltage, and the common electrode has a common voltage; in a second display state, the field display electrode has a field display voltage, the common electrode has a common voltage, and the pixel electrode is floating. The display panel can realize free switching between black-and-white field display and color image display in the same liquid crystal display panel, achieve the best display effect during color image display, and reduce power consumption during black-and-white field display.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
FIG. 1 is a schematic diagram of an LCD panel according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a lower substrate of a liquid crystal display panel according to an embodiment of the present invention;
FIG. 3 is a diagram of a field display electrode according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a display device according to an embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
First, referring to fig. 1 and 2, fig. 1 is a schematic view of a liquid crystal display panel according to an embodiment of the present invention, and fig. 2 is a schematic view of a lower substrate of the liquid crystal display panel according to an embodiment of the present invention, including a lower substrate 10, an upper substrate 20, and a liquid crystal layer 30 located between the lower substrate 10 and the upper substrate 20, where the liquid crystal layer 30 is sealed in a box-shaped space formed by the lower substrate 10 and the upper substrate 20.
In this embodiment, for example, the upper substrate may be a color filter substrate, and the lower substrate may be an array substrate.
The lower substrate 10 may be the structure shown in fig. 2, and specifically, the lower substrate may be an array substrate including a display area and a frame area. In the display region, the lower substrate 10 includes a lower substrate 101 and a driving array on the lower substrate 101, the driving array includes a plurality of data lines DL and a plurality of scan lines GL, the data lines DL and the scan lines GL are crossed to define a plurality of pixel units P arranged in an array, each pixel unit at least includes a sub-pixel Pn, and each sub-pixel Pn includes at least one scan line GL, at least one data line DL, at least one switching element T, and at least one pixel electrode 12. In the present embodiment, each pixel unit at least includes three sub-pixels Pn, such as a first sub-pixel P1, a second sub-pixel P2, and a third sub-pixel P3. The scan line and the data line may be made of metal materials, but the invention is not limited thereto, and may also be made of alloys, nitrides of metal materials, oxides of metal materials, oxynitrides of metal materials, or stacked layers of metal materials and other conductive materials.
Each switching element T includes a gate electrode, a semiconductor channel overlapping the gate electrode, a gate insulating layer disposed between the gate electrode and the semiconductor channel, and a source electrode and a drain electrode electrically connected to both sides of the semiconductor channel, respectively. The gate of the switching element T is electrically connected to the scanning line GL, and the source of the switching element T is electrically connected to the data line DL. The pixel electrode 12 is electrically connected to the drain of the switching element T. In the present embodiment, the gate and the scan line can be selectively formed by the same film layer; the source, the drain and the data line DL may be selectively formed in the same film. However, the invention is not limited thereto, and in other embodiments, the film relationship between the gate and the scan line and/or the film relationship between the source and the drain and the data line may be designed appropriately according to actual requirements. The pixel electrode 12 may be made of a transparent conductive material such as indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, indium germanium zinc oxide, or may be made of a metal material.
Further, the lower substrate 10 further includes a field display electrode 11 located between the lower substrate 101 and the pixel electrode 12, the field display electrode 11 and the pixel electrode 12 are disposed in different layers, and the pixel electrode 12 is located on a side of the field display electrode 11 facing the upper substrate 20 and is spaced apart from the field display electrode 11 by at least one insulating layer. In the present embodiment, for example, each field display electrode 11 may cover N pixel units P, and at least partially overlap with the corresponding pixel electrode 12, where N is a positive integer.
Further, the lower substrate 10 further includes an integrated circuit for display driving, and for the frame region, the data lines and the scan lines may be electrically connected to corresponding signal interfaces on the integrated circuit, for example, directly or through peripheral wiring. The integrated circuit further comprises an electrode control unit, and the field display electrodes 11 may be electrically connected to the electrode control unit on the integrated circuit, respectively, for example, by corresponding connection lines.
The upper substrate 20 includes an upper substrate 201, and a common electrode 21 and a color filter 22 on the upper substrate 201, for example, the common electrode 21 may be located on a side of the color filter 22 away from the upper substrate 201 and cover the color filter 22, the color filter 22 includes a plurality of color resistors of different colors, and the plurality of color resistors of different colors are arranged in an array and respectively correspond to different sub-pixels Pn, so that light emitted from each sub-pixel displays a color corresponding to the color resistor. The common electrode 21 may be electrically connected to a common signal interface in the integrated circuit described above, for example, through a common signal line. In this embodiment, the common electrode is located on a side of the color filter away from the upper substrate, but of course, the common electrode may also be located on a side of the color filter facing the upper substrate, which is not limited in the present invention; in the embodiment, the color filter is disposed on the upper substrate, but the color filter can also be disposed on the lower substrate, for example, the invention is not limited thereto.
By arranging and setting the colors of the color resistors in the color filter 22, the superimposed color of the colors of the corresponding sub-pixels in each pixel unit is white, and may be, for example: each pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, which respectively correspond to the red color resistance, the green color resistance, and the blue color resistance of the color filter 22, and when all the sub-pixels in a certain pixel unit are in an on state, the pixel unit displays a superimposed color of red, green, and blue, that is, white. Of course, the present embodiment is only described by taking the example that each pixel unit corresponds to the red color resistor R, the green color resistor G, and the blue color resistor B, and in other embodiments, other colors may be set as long as the requirement that the superimposed color of the display colors of all the sub-pixels in each pixel unit is white is satisfied.
The adjacent color resists can be spaced apart by a black matrix, for example, to prevent color mixing.
Further, the upper substrate and the lower substrate are respectively provided with an alignment film on the side close to the liquid crystal layer, for example, to provide an initial alignment for the liquid crystal molecules of the liquid crystal layer.
Furthermore, the upper substrate and the lower substrate are respectively provided with a polarizer on the side away from the liquid crystal layer, for example, to change the polarization direction of incident light or emergent light.
The liquid crystal display panel provided by the invention can be in the first display state and the second display state in a time-sharing manner, and the first display state and the second display state can be freely switched under the control of a driving signal in an integrated circuit.
When the display panel is in the first display state, the pixel electrode is enabled to have a data voltage according to a scanning signal from the scanning line and a data signal from the data line, and the common electrode is enabled to have a common voltage according to a common voltage signal from the common signal line, so that a potential difference is formed between the pixel electrode and the common electrode. For each sub-pixel, under the driving of the potential difference between the pixel electrode and the common electrode, the liquid crystal molecules of the liquid crystal layer are rotated and/or twisted and the like, and the liquid crystal molecules are matched with the polarizing devices on the upper substrate and the lower substrate, so that each sub-pixel has an off state and an on state in a time-sharing mode; when the sub-pixels are in an on state, light passes through the sub-pixels, the sub-pixels display colors of color resistances corresponding to the sub-pixels, and each sub-pixel presents colors required by different images by controlling data signals provided by data lines electrically connected with the sub-pixels, so that the liquid crystal display device realizes color image display.
Further, when in the first display state, a storage voltage signal may be provided to the field display electrode 11 through the connection line, so that a storage capacitor is formed between the field display electrode 11 and the pixel electrode 12, and at this time, the field display electrode 11 is a storage electrode and provides a storage voltage for each pixel unit. Preferably, the storage voltage signal is, for example, a common voltage signal, i.e. when the field display electrode has a common voltage equal to the common voltage.
When the liquid crystal display panel is in the second display state, the pixel electrodes 12 are suspended to enable the field display electrodes 11 to have a field display voltage, and the common electrode 21 to have a common voltage through the common signal line, so that a potential difference is formed between the field display electrodes 11 and the common electrode 21, each field display electrode 11 covers an integral number of pixel units P, for each pixel unit, under the driving of the potential difference formed between the field display electrodes and the common electrode, liquid crystal molecules of the liquid crystal layer are subjected to state changes such as rotation and/or distortion, and all sub-pixels in each pixel unit are simultaneously in an off state or an on state by matching with the polarizing devices on the upper substrate and the lower substrate, when all sub-pixels in the pixel unit are simultaneously in the off state, light cannot pass through all sub-pixels of the pixel unit, and the pixel unit displays black, that is, all the pixel units corresponding to the field display electrodes display black; when all the sub-pixels in the pixel unit are in an on state at the same time, light passes through all the sub-pixels in the pixel unit, the pixel unit displays the superposed colors of all the sub-pixels, namely displays white, and simultaneously all the pixel units corresponding to the field display electrodes display white. The field display signals provided by the connecting lines electrically connected with the field display electrodes are controlled, so that the area corresponding to each field display electrode is black or white, and black and white field patterns defined by the fixed shapes of the field display electrodes are displayed. Compared with the conventional color liquid crystal display, the liquid crystal display panel provided by the embodiment can realize black-and-white field display only by providing a high voltage and a low voltage for the field display electrodes to control each field display electrode to enable the corresponding area of each field display electrode to be in an on state or an off state, so that the power consumption of a driving circuit in the liquid crystal display panel can be reduced, the liquid crystal display panel has color image display and black-and-white field display which can be switched with each other, simultaneously, the better display effect during the color image display is realized, and the driving power consumption during the black-and-white field display is reduced.
In this embodiment, each field display electrode covers an integer number of pixel units, and the color superimposed color of the multiple sub-pixels in each pixel unit is white, which is just exemplified, but in other embodiments, each field display electrode may cover a non-integer number of pixel units as long as the superimposed color of all the sub-pixels in the coverage range of each field display electrode is white.
Further, before switching from the first display state to the second display state, the liquid crystal display panel may be subjected to a discharge process. If the liquid crystal display panel needs to be directly switched to the second display state in the first display state, a discharge voltage needs to be charged into the pixel electrode and the common electrode firstly before the liquid crystal display panel is switched to the second display state from the first display state, so that the potential difference between the pixel electrode and the common electrode is zero, for example, an OV voltage can be respectively supplied to the pixel electrode and the common electrode, the common voltage is charged into the common electrode after residual charges in the liquid crystal layer are released, field display voltages are charged into the field display electrodes, and the liquid crystal display panel enters the second display state, so that the display quality of the second display state is prevented from being influenced by the residual charges in the first display state.
To describe the principle of implementing black and white field display in detail, taking implementation of the english letter C as an example, please refer to fig. 3, specifically, a first field display electrode 111 and a second field display electrode 112 are disposed in a partial display area of a liquid crystal display panel, the first field display electrode 111 and the second field display electrode 112 are disposed in an insulated manner, and are respectively electrically connected to an electrode control unit in an integrated circuit through a connection line S, where the connection line S may be a metal line, and may be formed in the same layer as a scan line or in the same layer as a data line.
When the letter C needs to be displayed, the pixel electrodes are arranged in a suspended manner, meanwhile, the common electrode has a common voltage, a field display voltage is provided for the first field display electrode 111, a potential difference is generated between the first field display electrode 111 and the common electrode, light passes through the pixel units in the area, all the pixel units corresponding to the first field display electrode 111 are in an on state at the same time, and at the moment, the display area corresponding to the first field display electrode 111 displays white; meanwhile, another field display voltage is provided to the second field display electrode 112, so that another potential difference is generated between the second field display electrode 112 and the common electrode, all the pixel units corresponding to the second field display electrode 112 are in an off state at the same time, light cannot pass through the pixel units in the area, and at this time, the second field display electrode 112 displays black corresponding to the display area, so that the letter C displayed on the black substrate can be seen.
In this embodiment, each field display electrode covers an integer number of pixel units, and the color superimposed color of the multiple sub-pixels in each pixel unit is white, which is just exemplified, but in other embodiments, each field display electrode may cover a non-integer number of pixel units as long as the superimposed color of all the sub-pixels in the coverage range of each field display electrode is white.
According to the same principle, the shape of the field display electrode can be set as required for displaying different black and white patterns. The above-mentioned can be through a field display electrode not only can piece together a letter or other patterns, certainly can also set up as, certain pattern or number, letter are made up by the combination of a plurality of field display electrodes, as numeral 8, can be made up by 7 fixed positions, field display electrodes of fixed shape, and can be through controlling the field on each field display electrode to show the voltage composition different figures, letters, etc.
The liquid crystal display panel can be used in various modes such as ECB, TN, and VA modes.
The liquid crystal display panel may be a transmissive liquid crystal display panel or a reflective liquid crystal display panel. When the lcd panel is a transmissive lcd panel, the pixel electrodes and the field display electrodes are transparent conductive electrodes, and may be formed of one or more transparent conductive materials, such as indium tin oxide, indium zinc oxide, aluminum tin oxide, aluminum zinc oxide, indium germanium zinc oxide, and the like; in the case where the liquid crystal display panel is a reflective liquid crystal display panel, the pixel electrode is multiplexed as a reflective electrode, and the color filter is located on a side of the reflective electrode facing the upper substrate so that reflected light can pass through the color filter to display a color image, and in this case, the pixel electrode is formed by vapor deposition using a metal material such as aluminum or silver, or a compound or an alloy containing a metal material such as aluminum or silver as one component, and the field display electrode may be a transparent conductive electrode or a metal electrode.
The invention also provides a display device which comprises the transmission type liquid crystal display panel and the backlight module. The display device is, for example, a mobile phone or a wearable display device. Fig. 4 is a schematic diagram of a wearable display device, which can display time and incoming call prompts through black and white fields when the wearable display device is in a standby state, display a color picture after being turned on, realize free switching between color image display and black and white field display, and reduce driving power consumption during black and white field display.
In addition, the invention also provides another display device which comprises the reflective liquid crystal display panel and can further reduce the power consumption by reflecting external natural light such as sunlight to display a picture.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (9)
1. A liquid crystal display panel, comprising:
the liquid crystal display panel comprises an upper substrate, a lower substrate and a liquid crystal layer positioned between the upper substrate and the lower substrate, wherein the lower substrate comprises a pixel electrode and a field display electrode, the pixel electrode is positioned on one side of the field display electrode, which faces the upper substrate, and is arranged at an insulating interval with the field display electrode, and the upper substrate comprises a common electrode;
the color filter is positioned on the upper substrate or the lower substrate;
the lower substrate further comprises a data line and a scanning line, the data line and the scanning line are arranged in a crossed mode to form a plurality of pixel units which are arranged in an array mode, each pixel unit comprises a plurality of sub-pixels, and each pixel unit at least comprises a first sub-pixel, a second sub-pixel and a third sub-pixel which respectively correspond to a red color resistance, a green color resistance and a blue color resistance of the color filter; each field display electrode covers N pixel units, wherein N is a positive integer; or each field display electrode covers a non-integer number of pixel units, and the superimposed color of all the sub-pixel display colors in the coverage range of each field display electrode is white;
in a first display state, the pixel electrode has a data voltage, and the common electrode has a common voltage; in a second display state, the field display electrode has a field display voltage, the common electrode has a common voltage, and the pixel electrode is floating.
2. The liquid crystal display panel of claim 1, wherein in the first display state, the field display electrode has a common voltage same as the common electrode.
3. The liquid crystal display panel according to claim 1, wherein the liquid crystal display panel is subjected to a discharge process before being switched from the first display state to the second display state.
4. The liquid crystal display panel according to claim 1, wherein a switching element and a pixel electrode are provided in each of the sub-pixels, and the pixel electrode is electrically connected to the corresponding data line through the switching element.
5. The liquid crystal display panel according to claim 4, further comprising an integrated circuit including electrode control units, wherein the field display electrodes are electrically connected to the electrode control units through connection lines, respectively.
6. The liquid crystal display panel according to claim 5, wherein the connection lines are formed in the same layer as the scan lines;
or, the connecting line and the data line are formed in the same layer.
7. A display device comprising the liquid crystal display panel according to any one of claims 1 to 6.
8. The display device according to claim 7, wherein the liquid crystal display panel is a transmissive liquid crystal display panel, the pixel electrodes and the field display electrodes are transparent conductive electrodes, and the display device further comprises a backlight module.
9. The display device according to claim 7, wherein the liquid crystal display panel is a reflective liquid crystal display panel, and the pixel electrode is multiplexed as a reflective electrode;
the color filter is positioned between the pixel electrode and the upper substrate of the upper substrate.
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| CN110412798B (en) * | 2019-06-17 | 2022-08-02 | 上海天马微电子有限公司 | Display panel and display device |
| CN114114744B (en) * | 2021-11-30 | 2023-07-25 | 昆山龙腾光电股份有限公司 | Display device |
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| CN1419156A (en) * | 2001-09-06 | 2003-05-21 | 夏普株式会社 | Active matrix display |
| KR20050069422A (en) * | 2003-12-31 | 2005-07-05 | 엘지.필립스 엘시디 주식회사 | The wide viewing-angle mode liquid crystal display device and method for fabricating the same |
| CN1794054A (en) * | 2004-12-23 | 2006-06-28 | Lg.菲利浦Lcd株式会社 | Liquid crystal display device and fabricating method thereof |
| CN102346996A (en) * | 2010-08-04 | 2012-02-08 | 深圳莱宝高科技股份有限公司 | Display apparatus and driving circuit thereof |
| CN105223743A (en) * | 2015-08-25 | 2016-01-06 | 昆山龙腾光电有限公司 | The switchable liquid crystal indicator in visual angle |
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| CN107463032A (en) | 2017-12-12 |
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