CN100541278C - Multi-domain liquid crystal display device - Google Patents
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- CN100541278C CN100541278C CNB2006101467736A CN200610146773A CN100541278C CN 100541278 C CN100541278 C CN 100541278C CN B2006101467736 A CNB2006101467736 A CN B2006101467736A CN 200610146773 A CN200610146773 A CN 200610146773A CN 100541278 C CN100541278 C CN 100541278C
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Abstract
A kind of multi-domain liquid crystal display device, comprise a plurality of pattern elements, the control electrode that each pattern elements all has a pixel electrode and is provided with pixel electrode interval dielectric layer, each pattern elements is with line inversion timing controlling and driving, the current potential of control electrode follows the reversed polarity of pixel electrode to change producing an edge electric field with pixel electrode, and the control electrode that is wherein comprised with delegation or same row pattern elements is connected to same signal source.The present invention utilizes line counter-rotating (row counter-rotating or row counter-rotating) to carry out orientation control, the control electrode that only needs to be provided with in the pattern elements of same row (OK) all is connected to same signal source, does not need two thin film transistor (TFT)s to be set in same pixel cell and can to save manufacturing cost as Known designs.In addition, the orientation control that utilizes the line counter-rotating to carry out because of the common voltage of use change, and need not utilize two opposite voltage and common voltages of phase place to form positive polarity and negative polarity, so can reduce consumed power and drive system layout area.
Description
Technical field
The invention relates to a kind of multi-domain liquid crystal display device, in particular to a kind of multiple domain alignment liquid crystal display monitor that utilizes fringe field to provide to topple over liquid crystal molecule strength.
Background technology
The known dielectric anisotropy (dielectric anisotropy) of utilizing is negative negative type liquid crystal material, constitute the LCD alignment mode of vertical orientation (vertical alignment), liquid crystal molecule was not arranged in the vertical substrate mode when cause applied voltage, so good contrast (contrast) performance can be provided.Yet vertical orientation type liquid crystal display (vertically aligned LCD) is for forming the multiple domain segmentation effect usually, and the structure that it mated has some light leaks or multiple domain is cut apart the situation that disposes scarce capacity.
Figure 1A is a diagrammatic cross-section, shows a known multi-domain vertical alignment liquid crystal displays (multi-domain vertically aligned LCD; MVA LCD) design.Shown in Figure 1A, it is to form projection (bump) 106 respectively on upper and lower substrate 102,104, form the vertical orientation film 108 that covers projection (bump) 106 on it again, the liquid crystal molecule 112 of vertical orientation is had when not applying voltage towards the tilt angle (pre-tilt angle) of different directions inclination, use liquid crystal molecule 112 vergence directions after control applies voltage.After applying voltage, liquid crystal layer promptly may be partitioned into a plurality of little territories of liquid crystal that have different vergence directions respectively, with the viewing angle characteristic under the GTG show state of the different viewing angles of effective improvement.Moreover, be not defined as projection 106 as the alignment structure that tilt angle is provided, also can shown in Figure 1B, on substrate 114, form concave structure 116 and also can.
Shown in Figure 1A and Figure 1B, can reach the effect of making the little territory of a plurality of liquid crystal though form the mode of projection 106 or concave structure 116, yet, under the state that does not apply voltage (Voff), relatively penetrate light I
1And I
2Light path as can be known, be not fully vertical because of this alignment structure can cause LCD alignment, thus the inclination liquid crystal molecule of passing through penetrate light I
2Light path can have unnecessary light path difference (Δ nd ≠ 0) and cause light leak.Therefore, need in addition light leak to be eliminated to improve contrast by the outer compensate film mode of pasting.
Fig. 2 is a diagrammatic cross-section, shows the design of another multi-domain vertical alignment liquid crystal displays.As shown in Figure 2, utilize formed cracking (slit) 206 on the transparency electrode 204 of substrate 202, the toppling direction of may command liquid crystal molecule 208 after applying voltage.Yet, form 206 the mode of cracking at electrode 204 places, must think over 206 width and two that the crack distance between 206 or the like of cracking own, otherwise to produce the strength that liquid crystal molecule 208 is toppled over not enough easily by cracking 206.Moreover, crack 206 design of this formation, the energy that causes liquid crystal molecule 208 to rotate toward left and right sides either directions equates, produces discontinuous misorientation defective (disclination) and the orientation of liquid crystal molecule 208 in the space distributed.This misorientation defect area 210 is cracking above 206 and two is cracking 206 and all form easily, and reduces whole light transmittance.
Moreover, above-mentioned crack 206 the mode of projection 106, concave structure 116 or electrode that in dot structure, forms, though can reach the effect of making the little territory of a plurality of liquid crystal, but these structures that distribute can cause effective viewing area (active areas) to be reduced, that is produce the problem that the dot structure aperture opening ratio descends.
For solving above-mentioned variety of problems, prior art the another kind of bias voltage that utilizes occurs and produces the design that fringe field is swung to the control liquid crystal molecule.As shown in Figure 3, be formed with a control electrode 216 on the transparency carrier 212, control electrode 216 is positioned at pixel electrode 218 belows and between the two every dielectric layer 222.Be formed with on the transparency carrier 214 of transparency carrier 212 offsides altogether with electrode 224, pixel electrode 218 is formed with in corresponding control electrode 216 positions and cracks 226,216 angles of inclination that form fringe field and make liquid crystal molecule 228 have symmetry of control electrode that make pixel electrode 218 and have a potential difference (PD) use producing a plurality of little territories of liquid crystal with different vergence directions.
Based on this design, suppose that Vct, Vp and Vcom are respectively the current potential of control electrode 216, pixel electrode 218 and common electrode 224, under driving, reversal of poles, must meet following condition for avoiding misorientation (disclination) defective to produce:
When pixel electrode current potential during, need Vct＞Vp＞Vcom greater than the common electrode current potential;
When pixel electrode current potential during, need Vct＜Vp＜Vcom less than the common electrode current potential.
For satisfying this condition, as shown in Figure 4, TaiWan, China bulletin I239424 patent proposes a kind of some inversion timing control mode, it is provided with two thin film transistor (TFT)s at each pixel cell 300, utilizing the first film transistor T 1 and transistor seconds film T2 to switch in different time points opens and closed condition, make the potential change of control electrode 216, pixel electrode 218 and common electrode 224 meet above-mentioned condition, and can avoid the misorientation defective to produce.
Yet, use the generally fixing common voltage Vcom of palpus collocation of some inversion driving control, therefore need utilize two opposite relative common voltage Vcom of voltage of phase place to constitute positive-negative polarity.Therefore, use the line inversion driving control of the common voltage of change compared to collocation, the control of some inversion driving can expend bigger power, and employed drive system can have bigger area.On the other hand, this design for avoiding the misorientation defective to produce, needs two thin film transistor (TFT) T1, T2 are set in same pixel cell 300 under an inversion driving control, so can improve manufacturing cost and reduce aperture opening ratio.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of multi-domain liquid crystal display device, it has the multiple domain orientation design that utilizes bias voltage generation fringe field under line counter-rotating (line inversion) drive controlling, and can avoid the shortcoming of Known designs.
According to design of the present invention, a kind of multi-domain liquid crystal display device comprises a plurality of pattern elements (pictureelement), the control electrode that each pattern elements all has a pixel electrode and is provided with pixel electrode interval dielectric layer.Each pattern elements is to drive with line counter-rotating (line inversion) sequential control, and the current potential of control electrode follows the reversed polarity of pixel electrode to change to produce an edge electric field with pixel electrode.Respectively this pattern elements all has altogether with electrode constituting the two extreme of a liquid crystal capacitance with this pixel electrode, and when this pixel electrode current potential during less than this common electrode current potential, this control electrode current potential is made as less than this pixel electrode current potential; And when pixel electrode current potential during greater than this common electrode current potential, this control electrode current potential is made as greater than this pixel electrode current potential.The control electrode that is comprised with delegation or same row pattern elements is connected to same signal source, and this signal source for example can be a gate driving IC, or with the irrelevant independent control signal source of liquid crystal drive voltage.
By design of the present invention, because of the orientation control that utilizes line counter-rotating (row counter-rotating or row counter-rotating) to carry out, the control electrode that only needs to be provided with in the pattern elements of same row (OK) all is connected to same signal source and gets final product, so do not need two thin film transistor (TFT)s to be set in same pixel cell and can to save manufacturing cost as Known designs.On the other hand, the orientation control that utilizes the line counter-rotating to carry out because of the common voltage of use change, and need not utilize two opposite voltage and common voltages of phase place to form positive polarity and negative polarity, so can reduce consumed power and drive system layout area.
Description of drawings
Figure 1A is a diagrammatic cross-section, shows the design of a known multi-domain vertical alignment liquid crystal displays.
Figure 1B is a diagrammatic cross-section, shows the design of another known multi-domain vertical alignment liquid crystal displays.
Fig. 2 is a diagrammatic cross-section, shows the design of another known multi-domain vertical alignment liquid crystal displays.
Fig. 3 is a diagrammatic cross-section, shows the design of another known multi-domain vertical alignment liquid crystal displays.
Fig. 4 is the equivalent circuit diagram of the multi-domain vertical alignment liquid crystal displays of displayed map 3.
Fig. 5 shows the driver module synoptic diagram of a liquid crystal indicator.
Fig. 6 A and Fig. 6 B are synoptic diagram, the image switching of display line reversed polarity control.
Fig. 7 is a floor map of observing along the substrate normal direction, shows an embodiment of multi-domain liquid crystal display device design of the present invention.
Fig. 8 is the equivalent circuit diagram of multi-domain liquid crystal display device shown in Figure 7.
Fig. 9 is for showing the drive signal embodiment oscillogram of the pattern elements that acts on Fig. 7.
Figure 10 A and Figure 10 B are the sectional structure chart of explanation principle of operation of the present invention.
Figure 11 is a floor map of observing along the substrate normal direction, shows another embodiment of the present invention.
Figure 12 A and Figure 12 B are for showing the sectional structure chart of another embodiment of the present invention.
Figure 13 is for showing the sectional structure chart of another embodiment of the present invention.
Figure 14 is a floor map of observing along the substrate normal direction, shows another embodiment of the present invention.
Embodiment
Followingly follow the arrange in pairs or groups multi-domain liquid crystal display device design of reversal of poles sequential control of illustration the present invention with different embodiment, wherein the same components that occurs at each embodiment and icon is to represent with same label.
At first, Fig. 5 shows the synoptic diagram of the driver module 50 of a liquid crystal indicator.As shown in Figure 5, display control circuit 52 is according to the image and the control data that receive, produce clock pulse signal CK, horizontal-drive signal HSY, vertical synchronizing signal VSY and the data image signal Da etc. that show usefulness, and in feed-in data line drive circuit 54 and the gate line drive circuit 56.Polarity switching circuit 52a in the display control circuit 52 is according to the polarity switch-over control signal Φ of horizontal-drive signal HSY and vertical synchronizing signal VSY generation AC driving liquid crystal panel 60, and this polarity switch-over control signal Φ is in order to the sequential of decision liquid crystal panel 60 reversal of poles.Common electrode drive circuit 58 produces the common voltage Vcom of the common electrode of supply liquid crystal panel 60.Utilize this driver module 50 can make LCD when picture switches, the pixel that has alternate under same picture represents that signal writes polarity, show delegation's counter-rotating (column inversion) polarity switching controls as Fig. 6 A, Fig. 6 B shows row counter-rotating (row inversion) polarity switching controls, it just can alternately occur under same picture and negative two kinds of opposed polarities, so can utilize this inversion timing control characteristic to carry out multiple domain orientation design.
According to design of the present invention, multi-domain liquid crystal display device is to adopt line counter-rotating (row the counter-rotating as shown in Figure 6A or row counter-rotating shown in Fig. 6 B) polarity switching controls, therefore, two adjacent pattern elements row (or two adjacent pattern elements row) polarity alternate on the contrary and in time under same picture.
Fig. 7 is a floor map of observing along the substrate normal direction, shows an embodiment of multi-domain liquid crystal display device design of the present invention.Fig. 8 is the equivalent circuit diagram of multi-domain liquid crystal display device shown in Figure 7.As shown in Figure 7, be formed with a control electrode 14 (indicating) in each pattern elements 12 with the section hachure, and all control electrodes 14 of same pattern elements row all are connected to the same signal source 34 of the non-display area (non-active area) that is arranged at the permutation pattern elements outside.Because of this signal source 34 is positioned at the non-display area in the pattern elements outside, so can not influence the aperture opening ratio size of LCD.With regard to an active-matrix type LCD, required positive gate voltage VGH of opening and closing thin film transistor (TFT) and negative-gate voltage VGL need be provided, therefore, as shown in Figure 8, in one embodiment, signal source 34 for example can be the pin that gate driving IC provides positive gate voltage VGH and negative-gate voltage VGL.In another embodiment, this signal source 34 also can be and the irrelevant independent voltage source of liquid crystal drive voltage, for example provides the pin of Extra Supply signal to carry out independently Control of Voltage by IC.Moreover two of liquid crystal capacitance Clc is made of common electrode and pixel electrode.Design according to present embodiment, each control electrode 14 comprises a service portion 14a and a junction 14b, the profile of service portion 14a is illustrated as circle, and pixel electrode 16 correspondences of service portion 14a top are provided with a round hole 18, make control electrode service portion 14a and pixel electrode 16 be able to produce fringe field because of pressure reduction.The area of this circle service portion 14a is with preferable greater than these perforate 18 distribution areas, so that enough electric field intensity to be provided.Moreover this control electrode 14 can define formation with the first metal layer (metal 1 layer) or second metal level (metal 2 layer) in array base palte technology.In addition, the liquid crystal layer in the multi-domain liquid crystal display device can add to help and revolves adulterant (chiraldopant) and produce to quicken the liquid crystal rotation and to reduce the misorientation defective.
Fig. 9 shows the drive signal embodiment oscillogram of the pattern elements that acts on Fig. 7.Following oscillogram collocation Figure 10 A with Fig. 9, the sectional structure chart of Figure 10 B illustrate principle of operation of the present invention.
As shown in Figure 9, present embodiment is to drive with row inversion timing control mode, therefore be formed at the common voltage Vcom of the common electrode 20 on the substrate 22 in 0V and 5V alternate, and the relative common voltage Vcom of pixel electrode 16 current potential Vp is in 5V and 0V alternate, so the polarity of pixel electrode current potential Vp is reversed each other at two adjacent sweep traces, and liquid crystal can drive by the pressure reduction of common electrode 20 and pixel electrode 16.Moreover gate driving IC alternately provides and makes the positive voltage VGH (15V) that thin film transistor (TFT) (TFT) opens and allow negative voltage VGL that TFT closes (10V).Shown in Figure 10 A and Figure 10 B, be formed with a control electrode 14 on the transparency carrier 24, and control electrode 14 is positioned at pixel electrode 16 belows and between the two every dielectric layer 26.By vertically applying the longitudinal electric field that voltage produces, the sensing with the anisotropic liquid crystal molecule 28 of negative dielectric is turned to be close to parallel with substrate at common electrode 20 and 16 of pixel electrodes.Pixel electrode 16 is formed with perforate 18 in corresponding control electrode 14 positions, so 16 fringe fields that form because of potential difference (PD) of control electrode 14 and pixel electrode can make liquid crystal molecule 28 form the angle of inclination of symmetry.Because of the control electrode 14 of same row pattern elements all is connected to same signal source, for example be connected directly to the signal source that gate driving IC produces positive gate voltage VGH and negative-gate voltage VGL, or be provided with again an on-off element between control electrode 14 and gate driving IC adjusting its potential change, the potential value of same row control electrode 14 like this can be simultaneously 15V and-the 10V alternate.Therefore, shown in Figure 10 A, work as Vcom=0V, during Vp=5V, can liquid crystal molecule be toppled over control electrode 14 top electrical field deformation toward in when same row control electrode 14 current potentials switch to Vct=15V.Shown in Figure 10 A, when polarity of voltage reverses, i.e. Vcom=5V, during Vp=0V, same row control electrode 14 current potentials need switch to Vct=-10V just can make liquid crystal molecule topple over toward in.That is, control electrode 14 current potentials that should be listed as promptly are made as greater than these row pixel electrode 16 current potentials when this row pixel electrode 16 current potentials during greater than common electrode 20 current potentials; And, control electrode 14 current potentials that should be listed as promptly are made as less than these row pixel electrode 16 current potentials, and can avoid the misorientation defective to produce when this row pixel electrode 16 current potentials during less than common electrode 20 current potentials.If each electrode potential control of collocation inversion timing produces mistake, then can shown in Figure 10 B, form the orientation mode that liquid crystal molecule is toppled over outward, and be easy to generate the misorientation defective.
On the other hand, connect the signal source 34 of permutation pattern elements control electrode 14, also can be and the irrelevant independent signal source of liquid crystal drive voltage.As Fig. 9 shown in the oscillogram of below, when pixel electrode 16 current potential Vp=5V, this independent signal source for example can provide the 8V positive voltage, and (Vct＞Vp＞Vcom), and when pixel electrode 16 current potential Vp=0V, this independent signal source can provide-3V negative voltage (Vct＜Vp＜Vcom).Therefore, it is interval and reduce consumed power to utilize the independent signal source can dwindle on the one hand potential change, is carrying out liquid crystal when swinging to control in addition, and can not be subjected to the unlatching of each pattern elements or close influences.
Though the foregoing description is with row inversion driving mode declaration pattern specification design of the present invention, also same principle under delegation's inversion driving pattern, the control electrode that only needs to be provided with in the pattern elements with delegation all is connected to same signal source and gets final product.
By design of the present invention, because of the orientation control that utilizes line counter-rotating (row counter-rotating or row counter-rotating) to carry out, the control electrode that only needs to be provided with in the pattern elements of same row (OK) all is connected to same signal source and gets final product, so do not need two thin film transistor (TFT)s to be set in same pixel cell and can to save manufacturing cost as Known designs.On the other hand, the orientation control that utilizes the line counter-rotating to carry out because of the common voltage of use change, and need not utilize two opposite voltage and common voltages of phase place to form positive polarity and negative polarity, so can reduce consumed power and drive system layout area.
Refer again to Fig. 7, according to design of the present invention, each pattern elements 12 also can be cracked by electrode and 32 is divided into two sub-pattern elements, each sub pattern element all have a control electrode service portion 14a and be one independently fringe field cause the unit.Electrode cracks and also can bring the fringe field effect between 32 itself and adjacent electrodes, cracks and 32 each pattern elements is divided into two sub-pattern elements though Fig. 7 is illustrated as electrode, and it cuts apart form and quantity does not limit fully, and visual actual demand is changed.
Figure 11 shows another embodiment of the present invention, as shown in figure 11, can be around the pixel electrode 16 around an auxiliary electrode 36 is set, this auxiliary electrode 36 can be connected to the signal source identical with common electrode 20 and have the Vcom current potential, with and its 16 of pixel electrodes centering on to small part form fringe field, use to strengthen and topple over liquid crystal molecule strength and produce probability further to reduce the misorientation defective.Sectional view illustration Figure 11 of Figure 12 A and Figure 12 B comprises two kinds of structural designs of auxiliary electrode 36.Shown in Figure 12 A, auxiliary electrode 36 can define and be formed at pixel electrode 16 tops by the 3rd metal level (metal 3 layer), or shown in Figure 12 B, auxiliary electrode 36 can define and be formed at pixel electrode 16 belows by the 3rd metal level equally.Perhaps, also can be as shown in figure 13, auxiliary electrode 36 defines to simplify technology by the first metal layer (metal 1 layer) with control electrode 14.
Moreover though the illustrative auxiliary electrode 36 of Figure 12 A and Figure 12 B forms the position and pixel electrode 16 parts are superimposed, it does not limit, and only need reach formation fringe field effect and get final product.
In addition, though above-mentioned control electrode service portion 14a and on perforate 18 be illustrated as circle, but this profile does not limit fully, only must reach the effect that can produce fringe field and get final product, and for example shown in Figure 14 service portion 14a and perforate 18 is designed to also can as one of rectangle polygonal outer shape.
The above only is an illustrative, but not is restricted.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the claim scope, but not be defined in the above embodiments its equivalent modifications of carrying out or change.
Claims (15)
1. a multi-domain liquid crystal display device is characterized in that, this multi-domain liquid crystal display device comprises:
A plurality of pattern elements, respectively this pattern elements all has the control electrode that a pixel electrode reaches and this pixel electrode interval dielectric layer is provided with, these pattern elements are with line inversion timing controlling and driving, the current potential of this control electrode follows the reversed polarity of this pixel electrode to change producing an edge electric field with this pixel electrode, and the control electrode that is wherein comprised with delegation or same row pattern elements is connected to same signal source;
Wherein, respectively this pattern elements all has altogether with electrode constituting the two extreme of a liquid crystal capacitance with this pixel electrode, and when this pixel electrode current potential during less than this common electrode current potential, this control electrode current potential is made as less than this pixel electrode current potential; And when pixel electrode current potential during greater than this common electrode current potential, this control electrode current potential is made as greater than this pixel electrode current potential.
2. multi-domain liquid crystal display device as claimed in claim 1 is characterized in that, described signal source be a gate driving IC or with the irrelevant independent control signal source of liquid crystal drive voltage.
3. multi-domain liquid crystal display device as claimed in claim 2 is characterized in that, is provided with an on-off element between described control electrode and described signal source.
4. multi-domain liquid crystal display device as claimed in claim 1 is characterized in that, described signal source is the non-display area that is arranged at this multi-domain liquid crystal display device.
5. multi-domain liquid crystal display device as claimed in claim 1 is characterized in that respectively this control electrode comprises a service portion and a junction, and this pixel electrode is to having installed a perforate by site of action.
6. multi-domain liquid crystal display device as claimed in claim 5 is characterized in that, described control electrode service portion and the rounded or polygon of described perforate, and this control electrode agency part cloth area is greater than this perforate distribution area.
7. multi-domain liquid crystal display device as claimed in claim 1 is characterized in that, also is formed with at least one electrode on the described pattern elements and cracks this pattern elements is divided into a plurality of sub pattern elements.
8. multi-domain liquid crystal display device as claimed in claim 1 is characterized in that described pattern elements also comprises an auxiliary electrode, and this auxiliary electrode is to small part around this pixel electrode and be connected to another the different signal source of signal source that is connected with this control electrode.
9. a multi-domain liquid crystal display device is characterized in that, this multi-domain liquid crystal display device comprises:
One first and one second substrate toward each other;
One liquid crystal layer, be situated between be located at described first and described second substrate between;
Use electrode altogether, be arranged at described first substrate in opposite directions in the one side of described second substrate;
A plurality of control electrodes are formed at described second substrate in opposite directions in the one side of described first substrate to be an array arrangement mode, and the control electrode that wherein is positioned at delegation or same row is connected to same signal source;
One dielectric layer is formed on described second substrate and covers described these control electrodes; And
A plurality of pixel electrodes are formed on the described dielectric layer to be an array arrangement mode, wherein are positioned at the pixel electrode with delegation or same row, and another pixel electrode polarity capable or another row with adjacent under the same picture of inversion driving control are opposite;
Wherein be positioned at same row or with the pixel electrode current potential of delegation during less than described common electrode current potential, the control electrode current potential of this row is made as less than described pixel electrode current potential to being listed as maybe; And when being positioned at same row or with the pixel electrode current potential of delegation during greater than described common electrode current potential, the control electrode current potential of this row is made as greater than described pixel electrode current potential to being listed as maybe.
10. multi-domain liquid crystal display device as claimed in claim 9 is characterized in that, described signal source be a gate driving IC or with the irrelevant independent control signal source of liquid crystal drive voltage.
11. multi-domain liquid crystal display device as claimed in claim 10 is characterized in that, is provided with an on-off element between described control electrode and this signal source.
12. multi-domain liquid crystal display device as claimed in claim 9 is characterized in that, described signal source is the non-display area that is arranged at described multi-domain liquid crystal display device.
13. multi-domain liquid crystal display device as claimed in claim 9, it is characterized in that, this multi-domain liquid crystal display device also comprises a plurality of auxiliary electrodes that are connected to same signal source with this common electrode, and each described auxiliary electrode forms down to small part around each described pixel electrode mode.
14. multi-domain liquid crystal display device as claimed in claim 9 is characterized in that, is formed with at least one cracking so that this pixel electrode is divided into a plurality of blocks on the described pixel electrode.
15. multi-domain liquid crystal display device as claimed in claim 9 is characterized in that, described liquid crystal layer comprises to help and revolves dopant material.
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| CNB2006101467736A CN100541278C (en) | 2006-11-22 | 2006-11-22 | Multi-domain liquid crystal display device |
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| CNB2006101467736A CN100541278C (en) | 2006-11-22 | 2006-11-22 | Multi-domain liquid crystal display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI718493B (en) * | 2018-08-06 | 2021-02-11 | 大陸商雲谷（固安）科技有限公司 | Display panel, display screen and display terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI718493B (en) * | 2018-08-06 | 2021-02-11 | 大陸商雲谷（固安）科技有限公司 | Display panel, display screen and display terminal |
| US11335765B2 (en) | 2018-08-06 | 2022-05-17 | Yungu (Gu'an) Technology Co., Ltd. | Display panels, display screens, and display terminals |
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