CN214252828U - Liquid crystal display panel - Google Patents
Liquid crystal display panel Download PDFInfo
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- CN214252828U CN214252828U CN202120038263.7U CN202120038263U CN214252828U CN 214252828 U CN214252828 U CN 214252828U CN 202120038263 U CN202120038263 U CN 202120038263U CN 214252828 U CN214252828 U CN 214252828U
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 44
- 239000000758 substrate Substances 0.000 claims abstract description 87
- 239000011521 glass Substances 0.000 claims abstract description 33
- 239000000463 material Substances 0.000 claims abstract description 22
- 239000004065 semiconductor Substances 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 15
- 230000002093 peripheral effect Effects 0.000 claims description 39
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 11
- 229910052709 silver Inorganic materials 0.000 claims description 11
- 239000004332 silver Substances 0.000 claims description 11
- 239000003292 glue Substances 0.000 claims description 10
- 239000000084 colloidal system Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 4
- 239000000049 pigment Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 abstract description 6
- 230000005684 electric field Effects 0.000 description 6
- 239000000565 sealant Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Abstract
The utility model discloses a liquid crystal display panel, which relates to the technical field of liquid crystal display and comprises an array substrate, a color film substrate and liquid crystal positioned between the two substrates; the array substrate comprises a first electrode layer, a second electrode layer and an insulating layer positioned between the first electrode layer and the second electrode layer, wherein the first electrode layer is a common electrode, and the second electrode layer is a pixel electrode; the color film substrate comprises glass substrates, shading layers positioned on the inner side surfaces of the glass substrates and color resistance layers arranged between the shading layers; the light shielding layer is made of an opaque conductor material or a semiconductor material and is electrically connected with the first electrode layer on the array substrate. The utility model provides a liquid crystal display panel sets up the light shield layer through the inboard at the glass substrate of various membrane base plate to carry out electric connection with this light shield layer and the common electrode on the array substrate, thereby need not to increase the inboard ITO of one deck again in the inboard of various membrane base plate, can satisfy the quick response's of panel demand.
Description
Technical Field
The utility model relates to a liquid crystal display technology field especially relates to a liquid crystal display panel.
Background
A Liquid Crystal Display (LCD) has advantages of good picture quality, small size, light weight, low driving voltage, low power consumption, no radiation, and relatively low manufacturing cost, and is dominant in the field of flat panel displays.
In an FFS (Fringe Field Switching) liquid crystal display panel, a pixel electrode and a common electrode provided with an insulating layer therebetween are provided on an array substrate, and a Fringe electric Field for driving liquid crystals is generated between the pixel electrode and the common electrode.
In the existing FFS display technology, in order to shield the influence of an external electric field on the liquid crystal display, that is, to prevent an electrostatic Mura (Mura) phenomenon, a transparent inner ITO layer is usually formed on the inner surface of a glass substrate of a color filter substrate and grounded.
For a display panel using negative liquid crystal, in order to shield an external electric field, a layer of inner ITO needs to be added on the inner side of a color film substrate, so that the back ITO can be omitted, but the response time of the negative liquid crystal is slow, and the current requirement for quick response is difficult to realize.
SUMMERY OF THE UTILITY MODEL
In order to overcome the shortcoming and the deficiency that exist among the prior art, the utility model aims to provide a liquid crystal display panel to realize shielding outside electric field to liquid crystal display's influence, and improve the quick response ability.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a liquid crystal display panel, which comprises an array substrate, a color film substrate and liquid crystal positioned between the array substrate and the color film substrate;
the array substrate comprises a first electrode layer, a second electrode layer and an insulating layer positioned between the first electrode layer and the second electrode layer, wherein the first electrode layer is a common electrode, and the second electrode layer is a pixel electrode;
the color film substrate comprises glass substrates, shading layers positioned on the inner side surfaces of the glass substrates and color resistance layers arranged between the shading layers;
the light shielding layer is made of an opaque conductor material or a non-opaque semiconductor material and is electrically connected with the first electrode layer on the array substrate.
Further, the light shielding layer adopts a light shielding conductor, a light shielding semiconductor or other opaque composite conductor or composite semiconductor material, or uses a black mixed pigment with conductivity.
Furthermore, the resistance value of the conductor material or the semiconductor material adopted by the shading layer is less than 10^ -7 omega/sq.
Further, the light shielding layer comprises two parts, specifically a peripheral light shielding layer part located in the peripheral area of the glass substrate and a pixel light shielding layer part located between adjacent pixel areas, and the peripheral light shielding layer part and the pixel light shielding layer part are connected into a whole;
the peripheral light shielding layer part of the light shielding layer is electrically connected with the first electrode layer on the array substrate.
Furthermore, the peripheral shading layer part is electrically connected with the first electrode layer at the periphery of the glass substrate through silver colloid.
Furthermore, the peripheral shading layer part extends to the side face of the glass substrate at the position electrically connected to the first electrode layer through the silver colloid, and the peripheral shading layer part retracts to be positioned inside the glass substrate in other areas except the position where the silver colloid is positioned.
Furthermore, the peripheral shading layer part is arranged in a circle around the peripheral area of the glass substrate, the pixel shading layer part is in a crossed net shape, and the pixel shading layer part is positioned between the adjacent color resistance layers.
Furthermore, the liquid crystal display panel also comprises frame glue for connecting the array substrate and the color film substrate;
the peripheral shading layer part is electrically connected with the first electrode layer at the periphery of the glass substrate through the frame glue, and conductive particles are arranged in the frame glue.
Further, the color film substrate further comprises a flat layer covering the light shielding layer and the color resistance layer;
the flat layer is provided with an opening at the position of the frame glue, and the frame glue is filled in the opening.
Furthermore, the color film substrate further comprises a back electrode positioned on the outer side surface of the glass substrate.
The utility model provides a liquid crystal display panel sets up the light shield layer of making by lightproof conductor material or semiconductor material through the inboard at the glass substrate of various membrane base plate to carry out electric connection with this light shield layer and the common electrode on the array substrate, thereby need not to increase the inboard ITO of one deck again in the inboard of various membrane base plate, can satisfy the demand of the quick response of panel.
Drawings
Fig. 1 is a schematic structural diagram of a liquid crystal display panel according to a first embodiment of the present invention;
FIG. 2 is a plan top view of the liquid crystal display panel in the embodiment shown in FIG. 1;
FIG. 3 is a partial schematic view of the LCD panel of the embodiment shown in FIG. 1;
fig. 4 is a partial schematic view of a liquid crystal display panel according to a second embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific examples, but the scope of the present invention is not limited thereto.
Fig. 1 to fig. 3 show the structure schematic diagram of the first embodiment of the present invention, the embodiment of the present invention provides a liquid crystal display panel, which includes an array substrate 10, a color filter substrate 20, a liquid crystal 30 located between the array substrate 10 and the color filter substrate 20, and a frame adhesive 40 connecting the array substrate 10 and the color filter substrate 20, wherein the array substrate 10 and the color filter substrate 20 are connected by the frame adhesive 40 in the peripheral region. Wherein the liquid crystal 30 is a positive liquid crystal or a negative liquid crystal.
Specifically, the array substrate 10 includes:
a first glass substrate 11;
a gate electrode (not shown) and a scan line (not shown) on an inner surface of the first glass substrate 11;
a gate insulating layer 13 covering the gate and the scan lines;
a semiconductor layer (not shown), a source electrode (not shown), a drain electrode (not shown), and a data line 14 on the gate insulating layer 13;
a first insulating layer 15 covering the semiconductor layer, the source electrode, the drain electrode, and the data line 14;
a first electrode layer 16 on the first insulating layer 15;
a second insulating layer 17 covering the first electrode layer 16; and
a second electrode layer 18 on the second insulating layer 17.
Wherein the first electrode layer 16 is laid over the entire surface and serves as a common electrode, and the second electrode layer 18 is provided in each pixel region and serves as a pixel electrode. A second insulating layer 17 is interposed between the first electrode layer 16 and the second electrode layer 18. A fringe electric field is generated between the first electrode layer 16 and the second electrode layer 18 to control the liquid crystal 30.
In the present embodiment, the first electrode layer 16 as a common electrode is located below the second insulating layer 17, and the second electrode layer 18 as a pixel electrode is located above the second insulating layer 17, but is not limited thereto. In other embodiments, the first electrode layer 16 as the common electrode may be located above the second insulating layer 17, and the second electrode layer 18 as the pixel electrode is located below the second insulating layer 17.
Specifically, the color filter substrate 20 includes a second glass substrate 21, a light-shielding layer 22 located on an inner surface of the second glass substrate 21, a color resist layer disposed between the light-shielding layers 22, and a flat layer 24 covering the light-shielding layer 22 and the color resist layer. In the present embodiment, the color resist layer includes a red color resist layer 231, a green color resist layer 232, and a blue color resist layer 233. The light-shielding layer 22 is a Black Matrix (BM) for shielding light.
In the present embodiment, the light-shielding layer 22 is made of a light-opaque conductor material or semiconductor material, and specifically, may be a light-shielding conductor (such as metal), a light-shielding semiconductor, or other light-opaque composite conductor or composite semiconductor material, or a black mixed pigment having conductivity is used.
In the present embodiment, the resistance of the conductive material or the semiconductor material used for the light-shielding layer 22 is less than 10^ -7 Ω/sq, where Ω/sq represents ohm/sq, and sq represents sq (or square resistance/area resistance).
In this embodiment, the light-shielding layer 22 includes two portions, specifically, a peripheral light-shielding layer portion 222 located in the peripheral region of the second glass substrate 21 and a pixel light-shielding layer portion 221 located between adjacent pixel regions, the peripheral light-shielding layer portion 222 is arranged in a circle around the peripheral region of the second glass substrate 21, the pixel light-shielding layer portions 221 are in a crossed net shape, and the pixel light-shielding layer portions 221 are located between adjacent color-resist layers. The peripheral light-shielding layer portion 222 and the pixel light-shielding layer portion 221 are located on the same layer and may be formed of the same material at the same time, and the peripheral light-shielding layer portion 222 and the pixel light-shielding layer portion 221 are also integrated.
The liquid crystal display panel further includes a silver paste 50 electrically connecting a peripheral light shielding layer portion 222 of the light shielding layer 22 of the color filter substrate 20 with the first electrode layer 16 of the array substrate 10, the silver paste 50 is located at peripheral edges of the array substrate 10 and the color filter substrate 20, the peripheral light shielding layer portion 222 extends to a side surface of the second glass substrate 21 at a position connected to the first electrode layer 16 through the silver paste 50, and the peripheral light shielding layer portion 222 is retracted to an inside of the second glass substrate 21 in other areas except the position where the silver paste 50 is located, so as to prevent an outer frame of the color filter substrate 20 from being grounded.
Fig. 4 is a schematic structural diagram of a second embodiment of the present invention, which is different from the first embodiment: the planarization layer 24 of the color filter substrate 20 is provided with an opening 241 at the position of the sealant 40, the sealant 40 is filled in the opening 241, and the sealant 40 is provided with conductive particles, such as gold balls, therein, and the peripheral light shielding layer 222 and the first electrode layer 16 of the array substrate 10 are electrically connected through the conductive particles in the sealant 40.
When the peripheral light-shielding layer portion 222 of the light-shielding layer 22 is electrically connected to the first electrode layer 16 (i.e. the common electrode) through the silver paste 50 or the sealant 40, the two embodiments described above should avoid grounding of the peripheral light-shielding layer portion 222, for the following reasons:
in the full-voltage chip driving, if the peripheral light-shielding layer portion 222 is grounded and the voltage thereof is 0V, a 4-5V voltage difference exists between the peripheral light-shielding layer portion 222 and the first electrode layer 16 (i.e., the common electrode), and due to the influence of the electric field, 100% of light leakage and Mura of gray-scale images are caused around the black image pixel region, and the contrast is reduced to 1/3 which is normally displayed or even lower, which may seriously affect the display effect.
Even when the positive and negative voltage chip driving is used, if the peripheral light shielding portion 222 is grounded, a voltage difference of 1-2V is still present between the peripheral light shielding portion 222 and the first electrode layer 16 (i.e., the common electrode) due to the effect of the feed-through voltage (feed-through voltage), and the liquid crystal 30 is always affected by the bias voltage, and the image retention level is also greatly affected.
Therefore, the peripheral light-shielding layer portion 222 is electrically connected to the first electrode layer 16 (i.e., the common electrode), rather than being grounded.
In other embodiments, as shown in fig. 1, the color filter substrate may further include a back electrode 26 located on the outer surface of the second glass substrate 21, and the back electrode 26 may be grounded. The presence of the back electrode 26 may achieve a better shielding effect. The material of the back electrode 26 may be transparent ITO. It will be appreciated that the back electrode 26 may also be omitted.
The utility model discloses liquid crystal display panel sets up the light shield layer of making by lightproof conductor material or semiconductor material through the inboard at the glass substrate of various membrane base plate to carry out electric connection with this light shield layer and the common electrode on the array substrate, thereby need not to increase the inboard ITO of one deck again in the inboard of various membrane base plate, can satisfy the demand of the quick response of panel.
The above embodiments are merely examples of the present invention, and are not intended to limit the scope of the present invention, and all equivalent changes and modifications made according to the content of the claims of the present invention should be included in the scope of the present invention.
Claims (10)
1. A liquid crystal display panel comprises an array substrate, a color film substrate and liquid crystal positioned between the array substrate and the color film substrate; the method is characterized in that:
the array substrate comprises a first electrode layer, a second electrode layer and an insulating layer positioned between the first electrode layer and the second electrode layer, wherein the first electrode layer is a common electrode, and the second electrode layer is a pixel electrode;
the color film substrate comprises glass substrates, shading layers positioned on the inner side surfaces of the glass substrates and color resistance layers arranged between the shading layers;
the light shielding layer is made of an opaque conductor material or a non-opaque semiconductor material and is electrically connected with the first electrode layer on the array substrate.
2. The liquid crystal display panel according to claim 1, characterized in that: the shading layer adopts a shading conductor, a shading semiconductor or other opaque composite conductor or composite semiconductor materials, or uses black mixed pigment with conductivity.
3. The liquid crystal display panel according to claim 1, characterized in that: the resistance value of the conductor material or the semiconductor material adopted by the shading layer is less than 10^ -7 omega/sq.
4. The liquid crystal display panel according to claim 1, characterized in that: the light shielding layer comprises two parts, specifically a peripheral light shielding layer part positioned in the peripheral area of the glass substrate and a pixel light shielding layer part positioned between adjacent pixel areas, and the peripheral light shielding layer part and the pixel light shielding layer part are connected into a whole;
the peripheral light shielding layer part of the light shielding layer is electrically connected with the first electrode layer on the array substrate.
5. The liquid crystal display panel according to claim 4, wherein: the peripheral shading layer part is electrically connected with the first electrode layer through silver colloid on the periphery of the glass substrate.
6. The liquid crystal display panel according to claim 5, wherein: the peripheral shading layer part extends to the side face of the glass substrate at the position electrically connected to the first electrode layer through the silver colloid, and the peripheral shading layer part retracts to the position inside the glass substrate in other areas except the position where the silver colloid is located.
7. The liquid crystal display panel according to claim 4, wherein: the peripheral shading layer part is arranged in a circle around the peripheral area of the glass substrate, the pixel shading layer part is in a crossed net shape, and the pixel shading layer part is positioned between the adjacent color resistance layers.
8. The liquid crystal display panel according to claim 4, wherein: the liquid crystal display panel also comprises frame glue for connecting the array substrate and the color film substrate;
the peripheral shading layer part is electrically connected with the first electrode layer at the periphery of the glass substrate through the frame glue, and conductive particles are arranged in the frame glue.
9. The liquid crystal display panel according to claim 8, wherein: the color film substrate further comprises a flat layer covering the shading layer and the color resistance layer;
the flat layer is provided with an opening at the position of the frame glue, and the frame glue is filled in the opening.
10. The liquid crystal display panel according to any one of claims 1 to 9, wherein: the color film substrate further comprises a back electrode positioned on the outer side surface of the glass substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120038263.7U CN214252828U (en) | 2021-01-07 | 2021-01-07 | Liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120038263.7U CN214252828U (en) | 2021-01-07 | 2021-01-07 | Liquid crystal display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214252828U true CN214252828U (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120038263.7U Active CN214252828U (en) | 2021-01-07 | 2021-01-07 | Liquid crystal display panel |
Country Status (1)
| Country | Link |
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| CN (1) | CN214252828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755849A (en) * | 2022-04-29 | 2022-07-15 | 福州京东方光电科技有限公司 | Display panel and display device |
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2021
- 2021-01-07 CN CN202120038263.7U patent/CN214252828U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114755849A (en) * | 2022-04-29 | 2022-07-15 | 福州京东方光电科技有限公司 | Display panel and display device |
| CN114755849B (en) * | 2022-04-29 | 2023-12-15 | 福州京东方光电科技有限公司 | Display panel and display device |
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