CN114779538A - Display panel and adjusting method of display panel - Google Patents

Display panel and adjusting method of display panel Download PDF

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Publication number
CN114779538A
CN114779538A CN202210324394.0A CN202210324394A CN114779538A CN 114779538 A CN114779538 A CN 114779538A CN 202210324394 A CN202210324394 A CN 202210324394A CN 114779538 A CN114779538 A CN 114779538A
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China
Prior art keywords
display panel
power supply
negative electrode
positive electrode
signal line
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Granted
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CN202210324394.0A
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Chinese (zh)
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CN114779538B (en
Inventor
唐榕
李荣荣
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HKC Co Ltd
Mianyang HKC Optoelectronics Technology Co Ltd
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HKC Co Ltd
Mianyang HKC Optoelectronics Technology Co Ltd
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Priority to CN202210324394.0A priority Critical patent/CN114779538B/en
Publication of CN114779538A publication Critical patent/CN114779538A/en
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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
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • G02F1/13398—Spacer materials; Spacer properties
    • 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
    • G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0257—Reduction of after-image effects

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Geometry (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

The application discloses a display panel and an adjusting method of the display panel, wherein the display panel comprises a first substrate, a second substrate and a liquid crystal layer, the first substrate and the second substrate are arranged in a box-to-box mode, the liquid crystal layer is arranged between the first substrate and the second substrate, the display panel further comprises a power supply routing, a positive electrode and a negative electrode, and the power supply routing is arranged on the first substrate or the second substrate; the positive electrode and the negative electrode are oppositely arranged on the first substrate or the second substrate, the positive electrode and the negative electrode are electrically connected with the power supply wiring, the positive electrode, the negative electrode and the power supply wiring are all located at the shading portion of the display panel, and when the power supply wiring is electrified, an electric field is formed between the positive electrode and the negative electrode to adsorb impurity ions in the liquid crystal layer. According to the mode, the electric field is formed between the positive electrode and the negative electrode, impurity ions in the liquid crystal layer are adsorbed at the shading part, the residual image is improved, and the display effect of the display panel is improved.

Description

Display panel and adjusting method of display panel
Technical Field
The present application relates to the field of display technologies, and in particular, to a display panel and a method for adjusting the display panel.
Background
Usually, the dynamic picture normally displayed by the display panel is formed by switching one picture to another picture, and because the display panel is used for a long time, internal devices can be heated or illuminated unstably, the situation that positive and negative voltages of pixel voltages are asymmetric can occur, and further the impurity ions in the liquid crystal material can be gathered in a single direction, if the impurity ions are gathered in a display area, when the picture is switched, the original picture can be remained in the next picture, namely, the bad display phenomenon of residual images is formed, and the display effect is influenced.
Therefore, improving the image sticking phenomenon occurring in the display panel is a technical problem to be solved urgently in the art.
Disclosure of Invention
The present application provides a display panel and a method for adjusting the display panel, which form an electric field to adsorb impurity ions in a liquid crystal layer, thereby improving an image sticking and enhancing a display effect.
The application discloses a display panel, which comprises a first substrate, a second substrate and a liquid crystal layer, wherein the first substrate and the second substrate are arranged oppositely to each other, the liquid crystal layer is arranged between the first substrate and the second substrate, the display panel further comprises a power supply routing wire, a positive electrode and a negative electrode, and the power supply routing wire is arranged on the first substrate or the second substrate; the positive electrode and the negative electrode are oppositely arranged on the first substrate or the second substrate, the positive electrode and the negative electrode are electrically connected with the power supply wiring, the positive electrode, the negative electrode and the power supply wiring are located at the light shielding part of the display panel, and when the power supply wiring is electrified, an electric field is formed between the positive electrode and the negative electrode to adsorb impurity ions in the liquid crystal layer.
Optionally, the display panel further includes a spacer, the spacer is disposed between the first substrate and the second substrate, and the spacer is located between the positive electrode and the negative electrode.
Optionally, the display panel further includes a signal line and a pixel unit, the signal line includes a driving signal line and a power supply signal line, the driving signal line is electrically connected to the pixel unit, the power supply signal line is electrically connected to the positive electrode and the negative electrode, and the power supply signal line is the power supply trace.
Optionally, the display panel further includes a signal line and a plurality of pixel units, the signal line is electrically connected to the plurality of pixel units, the positive electrode and the negative electrode, a power supply switch is disposed between the signal line and the positive electrode and/or the negative electrode, the power supply switch controls the connection and disconnection of a circuit between the positive electrode and the negative electrode, and the signal line is the power supply trace.
Optionally, gaps are provided between the positive electrode and the spacer, and between the spacer and the negative electrode.
Optionally, an ion-adsorbing material is compounded in the spacer.
Optionally, the ion-labile material comprises at least one of an iron oxide, nickel ferricyanide, indium tin oxide, and lanthanum tin oxide material.
The application also discloses a method for adjusting the display panel, which is used for adjusting any display panel disclosed by the application and comprises the following steps:
before the display panel drives display, power is supplied to the power supply wires to form an electric field between the positive electrode and the negative electrode;
the electric field adsorbs impurity ions in the liquid crystal layer to the light shielding part of the display panel;
the power supply of the power supply wiring is disconnected, and the positive electrode and the negative electrode are not conducted;
the display panel drives the pixel unit to display.
Optionally, the display panel includes signal lines, the signal lines include driving signal lines and power supply signal lines, and the power supply routing lines are the power supply signal lines;
the step of the display panel driving the pixel unit to display comprises the following steps:
the driving signal line drives the pixel unit;
and displaying the pixel unit.
Optionally, the display panel includes a signal line and a power supply switch, and the step of supplying power to the power supply trace to form an electric field between the positive electrode and the negative electrode before the display panel drives the display includes:
before the display panel drives to display, power is supplied to the power supply wiring;
the power supply switch is turned on, and an electric field is formed between the positive electrode and the negative electrode;
the process of disconnecting the power supply of the power supply routing, wherein the positive electrode and the negative electrode are not conducted comprises the following steps:
disconnecting the power supply of the power supply routing;
the power supply switch is switched off, and the positive electrode and the negative electrode are not conducted;
the power supply wiring is the signal line;
the step of the display panel driving the pixel unit to display comprises the following steps:
supplying power to the signal lines, the signal lines driving the pixel units;
and displaying by pixel units.
For impurity ion in the liquid crystal material gathers the display area, can produce the scheme that the afterimage influences display effect, this application is through setting up the power supply line in display panel, positive electrode and negative electrode, and give the positive electrode and the negative electrode power supply of relative setting through the power supply line, make and form the electric field between positive electrode and the negative electrode, the electric field that forms can adsorb impurity ion in the liquid crystal layer respectively at positive electrode and negative electrode, and with impurity ion gathering in display panel's shading portion department, even display panel normally shows, can not influence display effect yet, and then improve display panel's afterimage problem, improve display panel's display effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic cross-sectional view of a display panel according to an embodiment of the present disclosure;
FIG. 2 is a schematic top view of a display panel according to an embodiment of the present disclosure;
FIG. 3 is a schematic cross-sectional view of a second display panel according to an embodiment of the present application;
FIG. 4 is a schematic top view of a second display panel according to an embodiment of the present disclosure;
FIG. 5 is a schematic cross-sectional view of a third display panel according to an embodiment of the present application;
FIG. 6 is a schematic top view of a fourth display panel according to an embodiment of the present application;
FIG. 7 is a flowchart illustrating steps of a method for adjusting a display panel according to the present application;
fig. 8 is a schematic view of a display device of the present application.
10, a display device; 20. a display panel; 210. a first substrate; 220. a second substrate; 221. a light shielding portion; 230. a liquid crystal layer; 240. a spacer; 241. a gap; 250. power supply routing; 251. a positive electrode; 252. a negative electrode; 253 power supply switch; 260. a signal line; 261. a driving signal line; 262. a power supply signal line; 270. a pixel unit; 30. a backlight module is provided.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
The present application is described in detail below with reference to the figures and alternative embodiments.
The first embodiment is as follows:
fig. 1 is a schematic cross-sectional view of a display panel according to an embodiment of the present application, and fig. 2 is a schematic top view of the display panel according to the embodiment of the present application, and it can be seen from fig. 1 and fig. 2 that, as a first embodiment of the present application, a display panel 20 is disclosed, which includes a first substrate 210, a second substrate 220, and a liquid crystal layer 230, wherein the first substrate 210 and the second substrate 220 are arranged in a cell-to-cell manner, the liquid crystal layer 230 is arranged between the first substrate 210 and the second substrate 220, the display panel 20 further includes a power supply trace 250, a positive electrode 251, and a negative electrode 252, and the power supply trace 250 is arranged on the first substrate 210 or the second substrate 220; the positive electrode 251 and the negative electrode 252 are oppositely disposed on the first substrate 210 or the second substrate 220, the positive electrode 251 and the negative electrode 252 are electrically connected to the power supply trace 250, the positive electrode 251, the negative electrode 252 and the power supply trace 250 are all located at the light-shielding portion 221 of the display panel 20, and when the power supply trace 250 is powered on, an electric field is formed between the positive electrode 251 and the negative electrode 252 to adsorb impurity ions in the liquid crystal layer 230.
For the scheme that the display effect is affected by the afterimage generated when the impurity ions in the liquid crystal material are gathered in the display area, the power supply routing 250, the positive electrode 251 and the negative electrode 252 are arranged in the display panel 20, and the power is supplied to the positive electrode 251 and the negative electrode 252 which are oppositely arranged through the power supply routing 250, so that an electric field is formed between the positive electrode 251 and the negative electrode 252, the formed electric field can enable the impurity ions in the liquid crystal layer 230 to be respectively adsorbed at the positive electrode 251 and the negative electrode 252, and the impurity ions are gathered at the light shielding portion 221 of the display panel 20, even if the display panel 20 normally displays, the display effect is not affected, the afterimage problem of the display panel 20 is further improved, and the display effect of the display panel 20 is improved.
In this embodiment, the first substrate 210 may be an array substrate, a color filter substrate, a cassette on board substrate, a COA (color filter layer is disposed on the array substrate) substrate, and correspondingly, the second substrate 220 may be a color filter substrate, an array substrate, a COA substrate, and a cassette on board substrate, which are not particularly limited herein, and the present application only describes the first substrate 210 as an array substrate and the second substrate 220 as a color filter substrate.
Generally, the display panel 20 further includes a signal line 260 and a pixel unit 270, the signal line 260 includes a driving signal line 261 and a power supply signal line 262, the driving signal line 261 is electrically connected to the pixel unit 270, the power supply signal line 262 is electrically connected to the positive electrode 251 and the negative electrode 252, and the power supply signal line 262 is the power supply trace 250.
The signal lines 260 generally include a plurality of scan lines and a plurality of data lines, the plurality of signal lines 260 and the plurality of data lines are respectively arranged in a staggered manner to form a plurality of pixel units 270, and the signal lines 260 include a driving signal line 261 and a power supply signal line 262, wherein the driving signal line 261 is electrically connected to the pixel units 270 to control the pixel units 270 to display normally and to turn off (i.e. not to display), and the power supply signal line 262 is electrically connected to the positive electrode 251 and the negative electrode 252, respectively, when the power supply signal line 262 is powered, an electric field is formed between the positive electrode 251 and the negative electrode 252 to attract impurity ions in the liquid crystal layer 230 to the positive electrode 251 and the negative electrode 252, i.e. to collect the impurity ions to the light shielding portion 221, and when the power supply signal line 262 is not powered, the positive electrode 251 and the negative electrode 252 are not conducted, and no electric field exists in the whole display panel 20, the impurity ions will not move in the liquid crystal layer 230.
Moreover, the power supply states of the driving signal line 261 and the power supply signal line 262 are opposite, that is, when the driving signal line 261 supplies power, the power supply signal line 262 does not supply power, and when the driving signal line 261 does not supply power, the power supply signal line 262 supplies power, and before the driving signal line 261 supplies power, the power supply signal line 262 completes one-time power supply, so that the impurity ions in the liquid crystal layer 230 can always gather at the light shielding portion 221, and further when the driving signal line 261 supplies power, when the pixel unit 270 normally displays a picture, or when the display panel 20 performs picture switching, the problem of image retention due to the existence of the impurity ions is avoided, or the problem of image retention is rarely caused, and the display effect is improved. In practical applications, the power supply states of the driving signal line 261 and the power supply signal line 262 may be controlled by code programming data of an integrated circuit chip (IC), and the timing of supplying power to the driving signal line 261 and the power supply signal line 262 is controlled by the IC, respectively.
Specifically, the positive electrode 251 and the negative electrode 252 are arranged in a horizontal direction and are arranged at intervals, the power supply line 250 is electrically connected with the positive electrode 251 and the negative electrode 252, in an actual manufacturing process, the power supply line 250, the positive electrode 251 and the negative electrode 252 can be connected in a via hole form, the power supply line 250, the positive electrode 251 and the negative electrode 252 can be located at different layers and completed through different processes, and the power supply line 250, the positive electrode 251 and the negative electrode 252 are insulated by arranging an insulating layer, so that when the power supply line 250 is normally powered, an electric field is formed between the positive electrode 251 and the negative electrode 252, positive impurity ions in the liquid crystal layer 230 are gathered near the negative electrode 252, negative impurity ions are gathered near the positive electrode 251, and even if the power supply is disconnected, no impurity ions in the liquid crystal layer 230 can move at will not exist in the electric field, and is limited to the light-shielding portion 221 of the display panel 20, so that the original screen does not remain when the screen is displayed.
In this application, the positive electrode 251 and the negative electrode 252 may be made of at least one of silver, copper, aluminum or titanium materials, or made of at least two of the materials mixed together, so as to form a stable electric field when the power supply trace 250 supplies power, so as to improve the adsorption effect of the impurity ions in the liquid crystal layer 230 and improve the afterimage.
Example two:
fig. 3 is a schematic cross-sectional view of a second display panel according to the second embodiment of the present disclosure, fig. 4 is a schematic top view of the second display panel according to the second embodiment of the present disclosure, and referring to fig. 3 and fig. 4, as a second embodiment of the present disclosure, the display panel 20 further includes a spacer 240, the spacer 240 is disposed between the first substrate 210 and the second substrate 220, and the spacer 240 is located between the positive electrode 251 and the negative electrode 252.
The display panel 20 is usually further provided with a spacer 240 to support the first substrate 210 and the second substrate 220, and to keep the cell thickness of the display panel 20 stable, in this embodiment, the spacer 240 is disposed between the positive electrode 251 and the negative electrode 252, when the power supply trace 250 is energized, an electric field is formed around the spacer 240, so as to collect the impurity ions near the spacer 240, and due to the presence of the spacer 240, the electric field formed by the positive electrode 251 and the negative electrode 252 surrounds the spacer 240, so as to facilitate the impurity ions in the liquid crystal layer 230 to be adsorbed on the periphery of the spacer 240, and limit the impurity ions at the light shielding portion 221 where the spacer 240 is located, so as to avoid the impurity ions from being collected in the display region.
Further, gaps 241 are provided between the positive electrode 251 and the spacer 240, and between the spacer 240 and the negative electrode 252. The gap 241 is set to make the positive electrode 251 and the negative electrode 252 have a certain distance from the spacer 240, and more impurity ions can be stored in the gap 241, so as to increase the concentration of the impurity ions at the light shielding portion 221 and avoid the impurity ions from being concentrated to the display region. Moreover, when the positive electrode 251 and the negative electrode 252 are disposed, the side of the positive electrode 251 away from the spacer 240 and the side of the negative electrode 252 away from the spacer 240 are both tangent to the edge of the light-shielding portion 221, or the positive electrode 251 and the negative electrode 252 are both located within the edge of the light-shielding portion 221, so as to further avoid the impurity ions from being collected in the display region.
Specifically, the setting range of the gap 241 is 50um to 300um, and the value of the gap is calculated according to the pixel size of the existing design, so as to ensure that the impurity ions can be gathered near the spacer 240 and limited at the position of the light shielding portion 221, and at the same time, the distances between the positive electrode 251 and the negative electrode 252 and the spacer 240 are not too large to exceed the region of the light shielding portion 221, and the display effect is not affected.
Of course, no gap may be provided between the positive electrode 251 and the negative electrode 252 and the spacer 240, that is, the positive electrode 251 and the negative electrode 252 are disposed next to the spacer 240, so that the power supply trace 250 needs to be separately disposed and cannot be shared with the existing signal line 260, and power supply to the positive electrode 251 and the negative electrode 252 through the power supply trace 250 may also be achieved, an electric field is formed between the positive electrode 251 and the negative electrode 252, and thus, the impurity ions in the liquid crystal layer 230 are adsorbed.
Example three:
fig. 5 is a schematic cross-sectional view of a display panel according to an embodiment of the present application, and referring to fig. 5, this embodiment is a further improvement of the second embodiment, in which an ion-easily-adsorbed material is compounded inside the spacer 240, and the ion-easily-adsorbed material includes at least one of iron oxide, nickel ferricyanide, indium tin oxide, and lanthanum tin oxide.
In this embodiment, a special ion-adsorbing material is further compounded inside the spacer 240, and together with the application of the electric field formed by the positive electrode 251 and the negative electrode 252, the impurity ions gathered around the spacer 240 are adsorbed onto the sidewall of the spacer 240 by the ion-adsorbing material, and the adsorption effect is further enhanced, so that more impurity ions, even farther away from the spacer 240, can be adsorbed, and the impurity ions in the liquid crystal layer 230 are favorably adsorbed and limited at the light-shielding portion 221, thereby further enhancing the effect of improving the afterimage.
Example four:
fig. 6 is a schematic top view of a display panel according to a fourth embodiment of the present disclosure, and referring to fig. 6, as a fourth embodiment of the present disclosure, different from the first embodiment, the display panel 20 further includes a signal line 260 and a plurality of pixel units 270, the signal line 260 is electrically connected to the plurality of pixel units 270, the positive electrode 251 and the negative electrode 252, a power supply switch 253 is disposed between the signal line 260 and the positive electrode 251 and/or the negative electrode 252, the power supply switch 253 controls on and off of a circuit between the positive electrode 251 and the negative electrode 252, and the signal line 260 is the power supply trace 250.
In this embodiment, the signal line 260 supplies power to the pixel unit 270, the positive electrode 251 and the negative electrode 252 at the same time, but a power supply switch 253 is provided between the signal line 260 and the positive electrode 251 and/or the negative electrode 252, and whether an electric field is formed between the positive electrode 251 and the negative electrode 252 is controlled by controlling whether the positive electrode 251 and/or the negative electrode 252 supplies power or not through the power supply switch 253, so that the sequence of forming the electric field and displaying the picture of the pixel unit 270 can be controlled, and further, before the picture is displayed by the pixel unit 270, the power supply switch 253 is turned on, so that the positive electrode 251 and the negative electrode 252 are energized to form an electric field to adsorb impurity ions in the liquid crystal layer 230, thereby preventing the impurity ions from being collected in the display region, and the power supply switch 253 is turned off after adsorption is completed, because there is no electric field in the display panel 20, the impurity ions are limited at the light shielding region 221, when the pixel unit 270 displays a picture, the picture residual caused by the impurity ions does not occur, so as to improve the residual image and the display effect of the display panel 20.
Fig. 7 is a flowchart of steps of a method for adjusting a display panel, and referring to fig. 7, the present application further discloses a method for adjusting a display panel, which is used for adjusting the display panel disclosed in the present application, and includes the steps of:
s1: before the display panel drives the display, supplying power to the power supply wires to form an electric field between the positive electrode and the negative electrode;
s2: the electric field adsorbs impurity ions in the liquid crystal layer to the light shielding part of the display panel;
s3: the power supply of the power supply wiring is disconnected, and the positive electrode and the negative electrode are not conducted;
s4: the display panel drives the pixel unit to display.
In the embodiment, before the display panel drives and displays, the power is supplied to the power supply wires, so that the positive electrode is electrified and positive, the negative electrode is electrified and negative, an electric field is formed between the positive electrode and the negative electrode, impurity ions in the liquid crystal layer are adsorbed, the positive impurity ions are gathered to the negative electrode, the negative impurity ions are gathered to the positive electrode, and the impurity ions are prevented from gathering to the display area to influence the display effect when the pixel unit displays.
The display panel comprises signal lines, the signal lines comprise driving signal lines and power supply signal lines, and the power supply wiring lines are the power supply signal lines;
step S4 of the display panel driving the pixel unit to display includes:
s411: the driving signal line drives the pixel unit;
s412: and displaying the pixel unit.
The normal display of the display panel is controlled by a signal line, when the signal line comprises a driving signal line and a power supply signal line, the driving display of the display panel and the formation of an electric field are controlled independently, different functions can be started at different time intervals, so that the power supply signal line supplies power to a positive electrode and a negative electrode to control the formation of the electric field, the driving signal line supplies power to a pixel unit to control whether a picture is displayed, and therefore before the picture is lightened, impurity ions in a liquid crystal layer are adsorbed, the residual image is improved, and the display effect is improved.
In addition, when the display panel includes the signal line and the power supply switch, the step S1 of supplying power to the power supply trace to form an electric field between the positive electrode and the negative electrode before the display panel drives the display includes:
s11: before the display panel drives to display, power is supplied to the power supply wiring;
s12: the power supply switch is turned on, and an electric field is formed between the positive electrode and the negative electrode;
the step S3 of disconnecting the power supply of the power supply trace and making the positive electrode and the negative electrode non-conductive includes:
s31: disconnecting the power supply of the power supply routing;
s32: the power supply switch is switched off, and the positive electrode and the negative electrode are not conducted;
the power supply wiring is the signal wire;
the step S4 of the display panel driving the pixel unit to display includes:
s421: supplying power to the signal lines, the signal lines driving the pixel units;
s422: and displaying the pixel unit.
In the embodiment, the signal line not only controls the pixel unit to display the picture, but also supplies power to the positive electrode and the negative electrode, and controls whether the signal line supplies power to the positive electrode and the negative electrode through the power supply switch, so as to control whether the display panel forms an electric field between the positive electrode and the negative electrode, specifically, before the display panel drives and displays, the power supply line is supplied with power, and the power supply switch is opened, so that the positive electrode and the negative electrode form an electric field, after absorbing impurity ions in the liquid crystal layer, the power supply line is disconnected, and the power supply switch is turned off, the positive electrode and the negative electrode do not form an electric field any more, so that the impurity ions in the display panel are absorbed and are limited at the light shielding part where the positive electrode and the negative electrode are located and do not move any more, when the signal line supplies power again and drives the pixel unit, the picture unit does not have a picture remaining phenomenon when displaying the picture, thereby improving the afterimage problem of the display panel and improving the display effect.
Fig. 8 is a schematic view of a display device according to the present application, and referring to fig. 8, the present application further discloses a display device 10, which includes a backlight module 30 and any one of the display panels 20 disclosed in the present application, wherein the backlight module 30 is disposed on one side of the light incident surface of the display panel 20.
Display device 10 in this application is as liquid crystal display panel, display panel 20 itself can not give out light, must provide the light source for it through backlight unit 30, just can make display device 10 normally show the picture, moreover, display panel 20 of this application is before showing the picture, the impurity ion in the liquid crystal layer 230 has adsorbed, and the restriction is in shading portion 221 department, even appear asymmetric electric field in picture switching or display panel 20, the afterimage phenomenon can not appear yet, therefore, display device 10's display effect is better, more do benefit to and improve market competition.
It should be noted that, the limitations of each step in the present disclosure are not considered to limit the order of the steps without affecting the implementation of the specific embodiments, and the steps written in the foregoing may be executed first, or executed later, or even executed simultaneously, and as long as the present disclosure can be implemented, all the steps should be considered as belonging to the protection scope of the present application.
It should be noted that the inventive concept of the present application can form many embodiments, but the present application has a limited space and cannot be listed one by one, so that, on the premise of no conflict, any combination between the above-described embodiments or technical features can form a new embodiment, and after the embodiments or technical features are combined, the original technical effect will be enhanced.
The technical scheme of the present application can be widely applied to various display panels, such as TN (Twisted Nematic) display panel, IPS (In-Plane Switching) display panel, VA (Vertical Alignment) display panel, and MVA (Multi-Domain Vertical Alignment) display panel, and all of them can be applied to the above scheme.
The foregoing is a further detailed description of the present application in connection with specific alternative embodiments and it is not intended that the present application be limited to these specific details. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.

Claims (10)

1. A display panel, includes first base plate, second base plate and liquid crystal layer, the first base plate with the second base plate sets up to the box, the liquid crystal layer sets up the first base plate with between the second base plate, its characterized in that, display panel still includes:
the power supply routing is arranged on the first substrate or the second substrate;
the positive electrode and the negative electrode are oppositely arranged on the first substrate or the second substrate, the positive electrode and the negative electrode are electrically connected with the power supply wiring, the positive electrode, the negative electrode and the power supply wiring are all located at the shading portion of the display panel, and when the power supply wiring is electrified, an electric field is formed between the positive electrode and the negative electrode to adsorb impurity ions in the liquid crystal layer.
2. The display panel according to claim 1, wherein the display panel further comprises a spacer, the spacer is disposed between the first substrate and the second substrate, and the spacer is located between the positive electrode and the negative electrode.
3. The display panel according to claim 1, wherein the display panel further comprises a signal line and a pixel unit, the signal line comprises a driving signal line and a power supply signal line, the driving signal line is electrically connected to the pixel unit, the power supply signal line is electrically connected to the positive electrode and the negative electrode, and the power supply signal line is the power supply trace.
4. The display panel according to claim 1, wherein the display panel further comprises a signal line and a plurality of pixel units, the signal line is electrically connected to the plurality of pixel units, the positive electrode, and the negative electrode, and a power supply switch is disposed between the signal line and the positive electrode and/or the negative electrode, the power supply switch controls on and off of a circuit between the positive electrode and the negative electrode, and the signal line is the power supply trace.
5. The display panel according to claim 2, wherein a gap is provided between the positive electrode and the spacer, and between the spacer and the negative electrode.
6. The display panel according to claim 2, wherein the spacer is internally compounded with an ion-adsorbing material.
7. The display panel according to claim 6, wherein the ion-labile material comprises at least one of an iron oxide, nickel ferricyanide, indium tin oxide, and lanthanum tin oxide material.
8. An adjusting method for a display panel, for adjusting a display panel according to any one of claims 1 to 7, comprising the steps of:
before the display panel drives display, power is supplied to the power supply wires to form an electric field between the positive electrode and the negative electrode;
the electric field adsorbs impurity ions in the liquid crystal layer to the light shielding part of the display panel;
the power supply of the power supply wire is cut off, and the positive electrode and the negative electrode are not conducted;
the display panel drives the pixel unit to display.
9. The adjusting method of the display panel according to claim 8, wherein the display panel includes signal lines, the signal lines include driving signal lines and power supply signal lines, and the power supply traces are the power supply signal lines;
the step of the display panel driving the pixel unit to display comprises the following steps:
the driving signal line drives the pixel unit;
the display panel displays.
10. The method according to claim 8, wherein the display panel comprises signal lines and power switches, and the step of supplying power to the power traces to form an electric field between the positive electrode and the negative electrode before the display panel drives the display comprises:
before the display panel drives to display, power is supplied to the power supply wiring;
the power supply switch is turned on, and an electric field is formed between the positive electrode and the negative electrode;
the process of disconnecting the power supply of the power supply routing, wherein the positive electrode and the negative electrode are not conducted comprises the following steps:
disconnecting the power supply of the power supply routing;
the power supply switch is switched off, and the positive electrode and the negative electrode are not conducted;
the power supply wiring is the signal wire;
the step of the display panel driving the pixel unit to display comprises the following steps:
supplying power to the signal lines, the signal lines driving the pixel units;
and displaying the pixel unit.
CN202210324394.0A 2022-03-30 2022-03-30 Display panel and adjusting method of display panel Active CN114779538B (en)

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