CN112259055A - Touch display panel and method for improving poor horizontal stripes thereof - Google Patents
Touch display panel and method for improving poor horizontal stripes thereof Download PDFInfo
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- CN112259055A CN112259055A CN202011029131.4A CN202011029131A CN112259055A CN 112259055 A CN112259055 A CN 112259055A CN 202011029131 A CN202011029131 A CN 202011029131A CN 112259055 A CN112259055 A CN 112259055A
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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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
-
- 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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
-
- 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
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention provides a touch display panel and a method for improving poor cross striation of the touch display panel, wherein the touch display panel comprises a scanning line, a data line, a plurality of pixel units, a plurality of touch electrode blocks, at least one touch line and a chip connected with the touch line; the chip also comprises a first decoupling correction wire, a second decoupling correction wire, at least one decoupling switch and a public voltage feedback line positioned at the edge, wherein the first decoupling correction wire, the second decoupling correction wire and the public voltage feedback line are all connected with the chip; the grid electrode of the coupling switch is connected with the first coupling correction wiring, the source electrode of the coupling switch is connected with the corresponding data line, and the drain electrode of the coupling switch is connected with the common voltage feedback line. The invention drives and increases the detection compensation function of the common voltage Vcom, and utilizes the overlapped compensation voltage to correct the wiring in the plane to offset the influence of the pixel coupling voltage on the common voltage Vcom, thereby improving the problem of generating the horizontal stripes.
Description
Technical Field
The invention belongs to the technical field of liquid crystal display panels, and particularly relates to a touch display panel and a method for improving poor horizontal stripes of the touch display panel.
Background
TDDI (Touch and Display Driver Integration) is a Touch chip and a Display chip integrated into a single chip, and a Touch Display panel using TDDI is a Touch Display panel that divides a common electrode layer (com layer) into a plurality of Touch units, for example, 48 × 30 Sensor blocks (Sensor blocks), and a Sensor block provides a common voltage signal to Display a picture by using the common electrode in a Display period and provides a Touch signal by using the Touch electrode in a Touch period, so as to achieve the effect of simultaneously having Touch and Display.
Fig. 1 is a schematic structural diagram of a pixel stack of a TDDI panel, which includes a gate line 10, a gate insulating layer 20 covering the gate line 10, a semiconductor layer 30 on the gate insulating layer 20, an etching barrier layer 40 covering the semiconductor layer 30, a source electrode 51 and a drain electrode 52 on the etching barrier layer 40 and electrically connected to the semiconductor layer 30, a third metal layer 53 on the etching barrier layer 40, an organic insulating layer 60 covering the source electrode 51, the drain electrode 52 and the third metal layer 53, a plurality of common electrode blocks 70 on the organic insulating layer 60, an insulating layer 80 covering the common electrode blocks 7070, and a pixel electrode 90 on the insulating layer 80; the pixel electrode 90 is electrically connected to the drain electrode 52, each common electrode layer 70 covers a plurality of pixel regions, so that the panel is divided into a plurality of blocks, and each common electrode block 70 is connected to the corresponding metal layer 53.
The touch signal is transmitted to the driving chip IC through the third metal layer 53, and when the picture is normally displayed, the common electrode layer 70 provides a common voltage (Vcom voltage) to realize normal display; when a touch is made, the common electrode layer 70 serves as a touch signal receiver, and a received touch signal (i.e., SXn signal) is transmitted to the third metal layer 53 and then transmitted to the driver IC, so as to implement a touch function.
For the pixels of the TDDI panel, the capacitance value is larger between the gate line 10 and the common electrode layer 70, i.e., Cg _ vcom capacitance, which can reach 300 to 400 (fF). Since the pixel has the large coupling capacitance and the common electrode layer 70 is divided into blocks, the common voltage Vcom is affected by the on and off of the gate signal to generate the coupling voltage during the image display.
As shown in fig. 2, fig. 2 illustrates gate lines G1 to G8, the first common electrode block is controlled by a first touch signal SX1, and the first common electrode block corresponds to G1 to G4; the second common electrode block is controlled by a second touch signal SX2, and corresponds to G5 to G8. When the gate lines G1 and G2 are turned on, there is no corresponding off gate line to cancel the coupling voltage with the first common electrode block, so that the common voltage Vcom in this block is different from the display brightness of other pixels in other blocks, specifically as shown in fig. 3, taking the display relationship between the first touch signal SX1(Vcom) and the Data voltage Data after being coupled as an example, since the common electrode block 70 is divided into a plurality of areas, there is a phenomenon that the coupling voltage cannot be cancelled when the last gate line of the corresponding block is turned off. The turn-off of the gate lines G3 and G4 corresponding to the first common electrode block cannot be cancelled out, and the turn-on of the gate lines G5 and G6 corresponding to the second common electrode block 70 cannot be cancelled out, so that the display brightness of the pixels of two adjacent common electrode blocks is different, and horizontal stripes, so-called sensor stripes (touch stripes), are displayed.
Disclosure of Invention
The invention aims to provide a touch display panel for improving the problem of cross striations and a method for improving the poor cross striations.
The invention provides a touch display panel, which comprises a plurality of scanning lines and a plurality of data lines which are crisscrossed, a plurality of pixel units defined by the scanning lines and the data lines in a crossed manner, a plurality of touch electrode blocks, at least one touch line connected with each touch electrode block and a chip connected with the touch lines, wherein each touch electrode block is positioned in the plurality of pixel units; the first compensation coupling compensation wiring, the second compensation coupling compensation wiring and the common voltage feedback line are connected with the chip; the grid electrode of the coupling switch is connected with the first coupling correction wiring, the source electrode of the coupling switch is connected with the corresponding data line, and the drain electrode of the coupling switch is connected with the common voltage feedback line.
Furthermore, the plurality of the butt-coupling switches are arranged in an area corresponding to one touch electrode block at the outermost edge of the display panel.
Furthermore, the first butt-coupling correction wiring is arranged far away from the chip, and the second butt-coupling correction wiring is arranged close to the chip.
The invention also provides a touch display panel, which comprises a plurality of scanning lines and a plurality of data lines which are crisscrossed, a plurality of pixel units defined by the scanning lines and the data lines in a crossed manner, a plurality of touch electrode blocks, at least one touch line connected with each touch electrode block and a chip connected with the touch lines, wherein each touch electrode block is positioned in the plurality of pixel units; the first compensation coupling compensation wiring, the second compensation coupling compensation wiring and the common voltage feedback line are all connected with the chip; the grid electrode of the coupling switch is connected with the second coupling correction wiring, the source electrode of the coupling switch is connected with the corresponding data line, and the drain electrode of the coupling switch is connected with the common voltage feedback line.
Further, the decoupling switch is located at an edge of the display panel.
Furthermore, the first butt-coupling correction wiring is arranged far away from the chip, and the second butt-coupling correction wiring is arranged close to the chip.
The invention also provides a method for improving the poor horizontal stripes of the touch display panel, which comprises the following steps:
s1: the chip outputs a common voltage to the touch electrode block through the touch line, and outputs the common voltage to the first decoupling correction wiring;
s2: the first decoupling correction wiring is output to a grid electrode of a decoupling switch, the decoupling switch is turned on, and the common voltage is connected to a common voltage feedback line through the decoupling switch;
s3: the common voltage received by the common voltage feedback line is input into the chip, compared with the set common voltage value in the chip and operated, and then the output parameters of the first decoupling compensation wiring and the second decoupling compensation wiring are adjusted;
s4: and adjusting the first compensation and correction wiring and the second compensation and correction wiring to obtain compensation voltage, and compensating the compensation voltage to the corresponding touch electrode block through the touch wire.
The invention also provides a method for improving the poor horizontal stripes of the touch display panel, which comprises the following steps:
s1: the chip outputs a common voltage to the touch electrode block through the touch line, and outputs the common voltage to the second decoupling correction wiring;
s2: the second decoupling correction wiring is output to a grid electrode of the decoupling switch, the decoupling switch is turned on, and the common voltage is connected to the common voltage feedback line through the decoupling switch;
s3: the common voltage received by the common voltage feedback line is input into the chip, compared with the set common voltage value in the chip and operated, and then the output parameters of the first decoupling compensation wiring and the second decoupling compensation wiring are adjusted;
s4: and adjusting the first compensation and correction wiring and the second compensation and correction wiring to obtain compensation voltage, and compensating the compensation voltage to the corresponding touch electrode block through the touch wire.
The invention drives and increases the detection compensation function of the common voltage Vcom, and utilizes the overlapped compensation voltage to correct the wiring in the plane to offset the influence of the pixel coupling voltage on the common voltage Vcom, thereby improving the problem of generating the horizontal stripes.
Drawings
FIG. 1 is a schematic diagram of a pixel stack of a TDDI panel shown in prior art FIG. 1;
FIG. 2 is a schematic diagram of the coupling voltages of the pixels of the panel of FIG. 1;
FIG. 3 is a diagram illustrating the difference between the pixel voltage and the common electrode voltage of the panel of FIG. 1;
FIG. 4 is a schematic structural diagram of a touch display panel according to a first embodiment of the present invention;
FIG. 5 is a driving waveform diagram of the touch display panel shown in FIG. 4;
FIG. 6 is a schematic structural diagram of a touch display panel according to a second embodiment of the present invention;
fig. 7 is a driving waveform diagram of the touch display panel shown in fig. 6.
Detailed Description
The present invention is further illustrated by the following figures and specific examples, which are to be understood as illustrative only and not as limiting the scope of the invention, which is to be given the full breadth of the appended claims and any and all equivalent modifications thereof which may occur to those skilled in the art upon reading the present specification.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
Fig. 4 is a schematic structural diagram of a touch display panel according to a first embodiment of the invention, which includes a plurality of scanning lines 10G1, G2, …, Gn and a plurality of data lines 20S1, S2, …, Sm that are criss-cross, a plurality of pixel units defined by intersections of the scanning lines 10 and the data lines 20, a plurality of touch electrode blocks 30, at least one touch line 40 connected to each touch electrode block 30, and a chip 50 connected to the touch line 40, wherein each touch electrode block 30 is located in a plurality of pixel units.
The touch display panel further comprises a first decoupling correction wire X1 located above the first scanning line, a second decoupling correction wire X2 located below the last scanning line, a plurality of decoupling switches T1 and a common voltage feedback line SX located at the edge of the display panel, wherein the first decoupling correction wire X1, the second decoupling correction wire X2 and the common voltage feedback line SX are all connected with the chip 50, the first decoupling correction wire X1 is arranged away from the chip 50, and the second decoupling correction wire X2 is arranged close to the chip 50; the decoupling switches T1 are located in the area corresponding to one touch electrode block 30 at the edge of the display panel, the number of the decoupling switches T1 is as large as the number of the pixel units corresponding to one touch electrode block 30, the gates of the decoupling switches T1 are connected to the first decoupling correction wiring X1, the sources of the decoupling switches T1 are connected to the corresponding data lines 20, and the drains of the decoupling switches T1 are connected to the common voltage feedback line SX.
The invention also discloses a method for improving the poor horizontal striation of the touch display panel, a chip 50 outputs a common voltage Vcom to a touch electrode block 30 through a touch line 40, simultaneously outputs the common voltage Vcom to a first compensation and correction wiring X1, outputs the common voltage Vcom to a grid electrode of a compensation and correction switch T1 through a first compensation and correction wiring X1, the compensation and correction switch T1 is opened, the common voltage Vcom is connected to a common voltage feedback line SX through the compensation and correction switch T1, the common voltage Vcom received by the common voltage feedback line SX is input into the chip 50 and is compared and operated with a common voltage Vcom value set in the chip 50, and parameters such as output width, voltage and the like of the first compensation wiring X1 and the second compensation and correction wiring X2 are adjusted; the driving waveforms of the first and second offset correction wires X1 and X2 are shown in FIG. 5, and their rising edges are aligned with the scanning lines G3 and G4, and their voltage values and pulse width values are adjusted according to the slightest sensor pattern, and so on. During the touch operation, the first compensation wiring X1 and the second compensation wiring X2 also output synchronous touch signals
The invention also discloses a method for improving the poor horizontal stripes of the touch display panel, which comprises the following steps:
s1: the chip 50 outputs the common voltage Vcom to the touch electrode block 30 through the touch line 40, and outputs the common voltage Vcom to the first decoupling correction wiring X1;
s2: the first compensation wiring X1 is output to the gate of the compensation switch T1, the compensation switch T1 is turned on, and the common voltage Vcom is connected to the common voltage feedback line SX by the compensation switch T1;
s3: the common voltage Vcom received by the common voltage feedback line SX is input into the chip 50, compared and calculated with the common voltage Vcom value set in the chip 50, and then output parameters, such as output width and voltage, of the first decoupling correction wiring X1 and the second decoupling correction wiring X2 are adjusted;
s4: the first compensation wiring X1 and the second compensation wiring X2 are adjusted to obtain a compensation voltage, and the compensation voltage is compensated to the corresponding touch electrode block 30 through the touch line 40.
Fig. 6 is a schematic structural diagram of a second embodiment, which is different from the first embodiment: the signal of the common voltage feedback line SX is obtained in a different manner, only one decoupling switch T1 is provided, the decoupling switch T1 is located at the edge of the display panel, the gate of the decoupling switch T1 is connected to the second decoupling correction line X2, the source of the decoupling switch T1 is connected to the corresponding data line 20, and the drain of the decoupling switch T1 is connected to the common voltage feedback line SX. That is, the common voltage feedback line SX only acquires the common voltage Vcom of one touch electrode block 30 as a reference.
The invention also discloses a method for improving the poor horizontal stripes of the touch display panel, which comprises the following steps:
s1: the chip 50 outputs the common voltage Vcom to the touch electrode block 30 through the touch line 40, and outputs the common voltage Vcom to the second decoupling correction wiring X2;
s2: the second compensation wiring X2 is output to the gate of the compensation switch T1, the compensation switch T1 is turned on, and the common voltage Vcom is connected to the common voltage feedback line SX by the compensation switch T1;
s3: the common voltage Vcom received by the common voltage feedback line SX is input into the chip 50, compared and calculated with the common voltage Vcom value set in the chip 50, and then output parameters, such as output width and voltage, of the first decoupling correction wiring X1 and the second decoupling correction wiring X2 are adjusted;
s4: the first compensation wiring X1 and the second compensation wiring X2 are adjusted to obtain a compensation voltage, and the compensation voltage is compensated to the corresponding touch electrode block 30 through the touch line 40.
The invention drives and increases the detection compensation function of the common voltage Vcom, and utilizes the overlapped compensation voltage to correct the wiring in the plane to offset the influence of the pixel coupling voltage on the common voltage Vcom, thereby improving the problem of generating the horizontal stripes.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the foregoing embodiments, and various equivalent changes (such as number, shape, position, etc.) may be made to the technical solution of the present invention within the technical spirit of the present invention, and these equivalent changes are all within the protection scope of the present invention.
Claims (8)
1. A touch display panel comprises a plurality of scanning lines and a plurality of data lines which are crisscrossed, a plurality of pixel units defined by the scanning lines and the data lines in a crossed mode, a plurality of touch electrode blocks, at least one touch line connected with each touch electrode block and a chip connected with the touch lines, wherein each touch electrode block is located in the pixel units; the chip is characterized by further comprising a first decoupling correction wiring positioned above the first scanning line, a second decoupling correction wiring positioned below the last scanning line, at least one decoupling switch and a common voltage feedback line positioned at the edge, wherein the first decoupling correction wiring, the second decoupling correction wiring and the common voltage feedback line are all connected with the chip; the grid electrode of the coupling switch is connected with the first coupling correction wiring, the source electrode of the coupling switch is connected with the corresponding data line, and the drain electrode of the coupling switch is connected with the common voltage feedback line.
2. The touch display panel according to claim 1, wherein the plurality of the counter-coupling switches are located in an area corresponding to one of the touch electrode blocks at the outermost edge of the display panel.
3. The touch display panel of claim 1, wherein the first decoupling correction wire is disposed away from the chip and the second decoupling correction wire is disposed close to the chip.
4. A touch display panel comprises a plurality of scanning lines and a plurality of data lines which are crisscrossed, a plurality of pixel units defined by the scanning lines and the data lines in a crossed mode, a plurality of touch electrode blocks, at least one touch line connected with each touch electrode block and a chip connected with the touch lines, wherein each touch electrode block is located in the pixel units; the device is characterized by further comprising a first decoupling correction wiring positioned above the first scanning line, a second decoupling correction wiring positioned below the last scanning line, a decoupling switch and a common voltage feedback line positioned at the edge, wherein the first decoupling correction wiring, the second decoupling correction wiring and the common voltage feedback line are all connected with the chip; the grid electrode of the coupling switch is connected with the second coupling correction wiring, the source electrode of the coupling switch is connected with the corresponding data line, and the drain electrode of the coupling switch is connected with the common voltage feedback line.
5. The touch display panel of claim 4, wherein the decoupling switch is located at an edge of the display panel.
6. The touch display panel of claim 4, wherein the first decoupling correction wire is disposed away from the chip and the second decoupling correction wire is disposed close to the chip.
7. The method for improving the cross striation defect of the touch display panel as claimed in claim 1 or 3, comprising the steps of:
s1: the chip outputs a common voltage to the touch electrode block through the touch line, and outputs the common voltage to the first decoupling correction wiring;
s2: the first decoupling correction wiring is output to a grid electrode of a decoupling switch, the decoupling switch is turned on, and the common voltage is connected to a common voltage feedback line through the decoupling switch;
s3: the common voltage received by the common voltage feedback line is input into the chip, compared with the set common voltage value in the chip and operated, and then the output parameters of the first decoupling compensation wiring and the second decoupling compensation wiring are adjusted;
s4: and adjusting the first compensation and correction wiring and the second compensation and correction wiring to obtain compensation voltage, and compensating the compensation voltage to the corresponding touch electrode block through the touch wire.
8. The method for improving the cross striation defect of the touch display panel as claimed in claim 4 or 6, comprising the steps of:
s1: the chip outputs a common voltage to the touch electrode block through the touch line, and outputs the common voltage to the second decoupling correction wiring;
s2: the second decoupling correction wiring is output to a grid electrode of the decoupling switch, the decoupling switch is turned on, and the common voltage is connected to the common voltage feedback line through the decoupling switch;
s3: the common voltage received by the common voltage feedback line is input into the chip, compared with the set common voltage value in the chip and operated, and then the output parameters of the first decoupling compensation wiring and the second decoupling compensation wiring are adjusted;
s4: and adjusting the first compensation and correction wiring and the second compensation and correction wiring to obtain compensation voltage, and compensating the compensation voltage to the corresponding touch electrode block through the touch wire.
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| CN202011029131.4A CN112259055A (en) | 2020-09-27 | 2020-09-27 | Touch display panel and method for improving poor horizontal stripes thereof |
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| CN202011029131.4A CN112259055A (en) | 2020-09-27 | 2020-09-27 | Touch display panel and method for improving poor horizontal stripes thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113986053A (en) * | 2021-10-29 | 2022-01-28 | 福建华佳彩有限公司 | High-refresh embedded touch panel |
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| CN101311779A (en) * | 2007-05-25 | 2008-11-26 | 群康科技(深圳)有限公司 | LCD device |
| CN105679259A (en) * | 2014-12-03 | 2016-06-15 | 乐金显示有限公司 | Liquid crystal display panel and liquid crystal display device using same |
| CN105842947A (en) * | 2016-05-27 | 2016-08-10 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN108194795A (en) * | 2018-01-25 | 2018-06-22 | 燕山大学 | A kind of weight idling platform of scalable variable freedom |
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2020
- 2020-09-27 CN CN202011029131.4A patent/CN112259055A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101311779A (en) * | 2007-05-25 | 2008-11-26 | 群康科技(深圳)有限公司 | LCD device |
| CN105679259A (en) * | 2014-12-03 | 2016-06-15 | 乐金显示有限公司 | Liquid crystal display panel and liquid crystal display device using same |
| CN105842947A (en) * | 2016-05-27 | 2016-08-10 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN108194795A (en) * | 2018-01-25 | 2018-06-22 | 燕山大学 | A kind of weight idling platform of scalable variable freedom |
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Application publication date: 20210122 |