CN108681139B - Liquid crystal display panel - Google Patents
Liquid crystal display panel Download PDFInfo
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- CN108681139B CN108681139B CN201810476538.8A CN201810476538A CN108681139B CN 108681139 B CN108681139 B CN 108681139B CN 201810476538 A CN201810476538 A CN 201810476538A CN 108681139 B CN108681139 B CN 108681139B
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133514—Colour filters
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
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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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/13624—Active matrix addressed cells having more than one switching element per pixel
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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
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
Abstract
A liquid crystal display panel is provided with a display area and a non-display area, the liquid crystal display panel comprises a first substrate and a second substrate, a central pixel unit and edge pixel units are arranged on the first substrate, each central pixel unit comprises a plurality of central pixel electrodes, each edge pixel unit comprises a plurality of edge pixel electrodes, and the number of the edge pixel electrodes in each edge pixel unit is more than that of the central pixel electrodes in each central pixel unit; the second substrate is provided with a central color resistance unit and an edge color resistance unit respectively corresponding to the area of each central pixel unit and each edge pixel unit along the direction vertical to the first substrate, and partial area of each edge color resistance unit is filled with black matrix. The invention properly covers the area corresponding to each fringe element electrode on the second substrate by using the black matrix, thereby increasing the resolution of the edge of the display area and reducing the sawtooth phenomenon generated at the edge of the display area.
Description
Technical Field
The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display panel.
Background
With the development of science and technology, the requirements of people on screen display are more and more diversified, people no longer only meet the conventional performance indexes of large size, high definition and the like of a display panel, but have higher requirements on the appearance of the display panel.
At present, the appearance of the special-shaped display panel not only enables the display effect to be more diversified, but also improves the limitation of the single rectangular structure of the display panel. The application of shaped display panels has become more widespread and has been successfully applied to wearable electronic devices such as watches, glasses or smart bands. The irregular display panel usually has an irregular display area, such as a circle, a polygon or even a shape with cut edges, and the edges of the irregular display area have irregular shapes, which may result in uneven cutting of the edge pixel units of the display panel, and thus, the area of the pixel units is different, and uneven color may occur.
Referring to fig. 1, the display panel includes a display region 10 ' located at the center of the panel and a black matrix region 20 ' located at the edge of the panel, the display panel has a special-shaped structure, and the black matrix region 20 ' is located at the peripheral edge of the special-shaped display panel. A pixel structure formed by a plurality of pixel units 11 ' is arranged in the display region 10 ', and each pixel unit 11 ' comprises a plurality of sub-pixels. Due to the special-shaped structure of the display panel, the light-emitting area of each sub-pixel in the pixel unit 11' closest to the black matrix area 12 is different, the aperture ratio of each sub-pixel is different, and uneven color is presented at the edge of the special-shaped display panel, which causes the problem of color difference.
Referring to fig. 2, if the black matrix area 20 'is designed to have a zigzag structure at the edge of the panel, the area of each sub-pixel in each row of pixel units 11' closest to the black matrix area 20 'can be the same, but because the black matrix area 20' at the edge of the panel has a zigzag structure, an uneven boundary line can be seen at the edge of the display panel, and obvious saw teeth can be seen, which affects the visual effect.
Disclosure of Invention
The present invention is directed to a liquid crystal display panel, which solves the problems of large saw teeth and uneven edge color at the edge of a display area in the conventional liquid crystal display device.
The invention provides a liquid crystal display panel, which is provided with a display area and a non-display area, wherein the non-display area surrounds the display area, the liquid crystal display panel comprises a first substrate and a second substrate arranged opposite to the first substrate, a plurality of central pixel units positioned in the middle of the display area and a plurality of edge pixel units positioned between the central pixel units and the non-display area are arranged on the first substrate, each central pixel unit comprises a plurality of central pixel electrodes, each edge pixel unit comprises a plurality of edge pixel electrodes, and the number of the edge pixel electrodes in each edge pixel unit is more than that of the central pixel electrodes in each central pixel unit; the second substrate is provided with a central color resistance unit and an edge color resistance unit respectively corresponding to the area of each central pixel unit and each edge pixel unit along the direction vertical to the first substrate, and partial area of each edge color resistance unit is filled with black matrix.
Further, the number of edge pixel electrodes in each edge pixel unit is an integral multiple of the number of central pixel electrodes in each central pixel unit.
Furthermore, each central pixel unit comprises three central pixel electrodes which are respectively connected to the corresponding switch elements; each edge pixel unit includes six edge pixel electrodes, which are respectively connected to the corresponding switching elements.
Furthermore, each edge pixel unit includes six edge pixel electrodes arranged along the scan line direction, that is, two electrically connected first edge pixel electrodes, two electrically connected second edge pixel electrodes, and two electrically connected third edge pixel electrodes, and each two first edge pixel electrodes, each two second edge pixel electrodes, and each two third edge pixel electrodes are respectively connected to one switch element.
Furthermore, the central color resistance unit comprises a first central sub-color resistance area, a second central sub-color resistance area and a third central sub-color resistance area, wherein the first central sub-color resistance area is correspondingly provided with a first central sub-color resistance, the second central sub-color resistance area is correspondingly provided with a second central sub-color resistance, and the third central sub-color resistance area is correspondingly provided with a third central sub-color resistance.
Further, the edge color resistance unit includes six edge sub-color resistance regions arranged along the scan line direction, that is, two first edge sub-color resistance regions for accommodating the first edge sub-color resistance, two second edge sub-color resistance regions for accommodating the second edge sub-color resistance, and two third edge sub-color resistance regions for accommodating the third edge sub-color resistance, where each edge sub-color resistance region is used for accommodating two edge sub-color resistances of the same color.
Furthermore, along the direction towards the second substrate, the first substrate is sequentially provided with metal conducting wires, edge pixel electrodes and a common electrode, and each metal conducting wire is used for conducting the two edge pixel electrodes.
Furthermore, along the direction towards the second substrate, the first substrate is sequentially provided with a common electrode, metal conducting wires and edge pixel electrodes, and each metal conducting wire is used for conducting two edge pixel electrodes.
Furthermore, each edge pixel unit includes six edge pixel electrodes arranged along the scan line direction, that is, two electrically connected first edge pixel electrodes, two electrically connected second edge pixel electrodes, and two electrically connected third edge pixel electrodes, and each edge pixel electrode is connected to a corresponding switching element through a corresponding data line and a corresponding scan line.
Further, along the direction towards the second substrate, a metal conducting line, a data line, a common electrode and an edge pixel electrode are sequentially arranged on the first substrate.
According to the liquid crystal display panel provided by the invention, each edge pixel electrode in the edge pixel unit on the first substrate is designed to be smaller than each central pixel electrode in the central pixel unit, and the area corresponding to each edge pixel electrode on the second substrate is properly covered by the black matrix, so that the area of the pixel at the edge of the liquid crystal display panel is reduced, the brightness is equal, the resolution at the edge of the display area is increased, and the sawtooth phenomenon generated at the edge of the display area is reduced.
Drawings
Fig. 1 is a schematic diagram of a part of a pixel structure of a display panel with a special shape in the prior art.
Fig. 2 is another schematic diagram of a part of a pixel structure of a display panel with a special shape in the prior art.
FIG. 3 is a schematic partial plan view of a liquid crystal display panel according to a first embodiment of the present invention.
Fig. 4 is a schematic partial structure diagram of the first substrate according to the first embodiment of the invention.
Fig. 5 is a schematic view of a partial structure on a second substrate according to a first embodiment of the invention.
Fig. 6 is a schematic view of a partial plan structure of fig. 4.
Fig. 7 is a sectional view taken along the direction a-a in fig. 6.
Fig. 8 is a cross-sectional view taken along the line B-B in fig. 6.
Fig. 9 is a schematic view of a partial structure on the first substrate according to the second embodiment of the invention.
Fig. 10 is a sectional view taken along the direction a-a in fig. 9.
Fig. 11 is a cross-sectional view taken along the line B-B in fig. 6.
Fig. 12 is a schematic view of a partial structure on the first substrate according to the third embodiment of the invention.
Fig. 13 is a sectional view taken along the direction a-a in fig. 12.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the present invention will be made with reference to the accompanying drawings and examples.
[ first embodiment ]
Fig. 3 is a partial plan view of a liquid crystal display panel according to a first embodiment of the invention, fig. 4 is a partial structural view of a first substrate according to the first embodiment of the invention, and fig. 5 is a partial structural view of a second substrate according to the first embodiment of the invention. Referring to fig. 3 to 5, the liquid crystal display panel provided in this embodiment includes a display area 10 and a non-display area 20, the non-display area 20 surrounds the display area 10, the liquid crystal display panel includes a first substrate 30 and a second substrate 40 disposed opposite to the first substrate 30, a plurality of central pixel units 301 disposed in the middle of the display area 10 and a plurality of edge pixel units 302 disposed between the central pixel units 301 and the non-display area 20 are disposed on the first substrate 30, each central pixel unit 301 includes a plurality of central pixel electrodes 36a, each edge pixel unit 302 includes a plurality of edge pixel electrodes 36b, and the number of the edge pixel electrodes 36b in each edge pixel unit 302 is greater than the number of the central pixel electrodes 36a in each central pixel unit 301. The central pixel unit 301 and the edge pixel unit 302 are both defined by the same plurality of scan lines 33 and the plurality of data lines 34, and the area of the edge pixel electrode 36b is smaller than that of the central pixel electrode 36 b. Referring to fig. 5, along a direction perpendicular to the first substrate 30, a central color resistance unit 401 and an edge color resistance unit 402 are respectively disposed in an area of the second substrate 40 corresponding to each central pixel unit 301 and each edge pixel unit 302, each central color resistance unit 401 and each edge color resistance unit 402 are separated by a black matrix 403, and a part of the area of each edge color resistance unit 402 is filled with the black matrix 403. In other embodiments, the central color resistance unit 401 corresponding to each central pixel unit 301 and the edge color resistance unit 402 corresponding to each edge pixel unit 302 may be disposed on the first substrate 30, and similarly, the black matrix 403 may be disposed on the first substrate 30 as long as a partial area of the edge pixel unit 302 is shielded.
Referring to fig. 3, each central pixel unit 301 is composed of three primary colors of red, blue, green (RGB), and each edge pixel unit 302 is also composed of three primary colors of red, blue, green (RGB). However, the number of edge pixel electrodes 36b in each edge pixel unit 302 is an integral multiple of the number of center pixel electrodes 36b in each center pixel unit 301. Specifically, in this embodiment, the area of each central pixel unit 301 can accommodate three central pixel electrodes 36a, and the area of each edge pixel unit 302 can accommodate six edge pixel electrodes 36b, but at least one edge pixel electrode 36b in each edge pixel unit 302 is covered by the black matrix 403 corresponding to the area on the second substrate 40, so that the irregular edge transition of the liquid crystal display device is natural, and the display is more fine. In addition, the number of the edge pixel electrodes 36b in each edge pixel unit 302 is not limited to the number of the center pixel electrodes 36b in each center pixel unit 301, and when the multiple is larger, the arc-shaped edges of the display region and the non-display region are smoother.
Referring to fig. 5, the central color resistance unit 401 includes a first central sub-color resistance area 411, a second central sub-color resistance area 412 and a third central sub-color resistance area 413, wherein the first central sub-color resistance area 411a is correspondingly disposed in the first central sub-color resistance area 411, the second central sub-color resistance area 412a is correspondingly disposed in the second central sub-color resistance area 412, and the third central sub-color resistance area 413a is correspondingly disposed in the third central sub-color resistance area 413. The edge color resistance unit 402 includes six edge sub-color resistance regions arranged along the direction of the scan line 33, namely two first edge sub-color resistance regions 421 for accommodating the first edge sub-color resistance 421a, two second edge sub-color resistance regions 422 for accommodating the second edge sub-color resistance 422a, and two third edge sub-color resistance regions 423 for accommodating the third edge sub-color resistance 423a, each of the edge sub-color resistance regions being adapted to accommodate two edge sub-color resistances of the same color.
Fig. 6 is a schematic view of a partial plan structure of fig. 4. Referring to fig. 6, each edge pixel unit 302 includes six edge pixel electrodes 36b arranged along the scan line 33, that is, two electrically connected first edge pixel electrodes 321, two electrically connected second edge pixel electrodes 322, and two electrically connected third edge pixel electrodes 323, where each two first edge pixel electrodes 321, each two second edge pixel electrodes 322, and each two third edge pixel electrodes 323 are respectively connected to a switch element 37.
Fig. 7 is a sectional view taken along a-a in fig. 6, and fig. 8 is a sectional view taken along B-B in fig. 6. Referring to fig. 7 to 8, along a direction toward the second substrate 40, the first substrate 30 is sequentially disposed with a metal conducting line 31, a gate insulating layer 306, an edge pixel electrode 36b and a common electrode 35, each metal conducting line 31 is used for conducting two edge pixel electrodes 36b, wherein the data line 34 and the edge pixel electrode 36b are disposed on the same layer and are insulated, and a first insulating layer 303 is further disposed between the common electrode 35 and the edge pixel electrode 36 b.
Specifically, referring to fig. 8, the gate insulating layer 306 is provided with a first via hole 331, and each two edge pixel electrodes 36b connected to the same switching element 37 are connected to the metal via 31 through the first via hole 331. The switching element 37 is, for example, a thin film transistor including a source 371, a drain 372, and a gate 373, and the drain 372 of the switching element 37 is electrically connected to the edge pixel electrode 36 b.
[ second embodiment ]
Fig. 9 is a schematic partial structure diagram of a first substrate according to a second embodiment of the present invention, fig. 10 is a cross-sectional view taken along a-a direction in fig. 9, and fig. 11 is a cross-sectional view taken along a B-B direction in fig. 6. Referring to fig. 9 to 11, the present embodiment is different from the first embodiment in that a common electrode 35, a metal via 31 and an edge pixel electrode 36b are sequentially disposed on the first substrate 30 along a direction toward the second substrate 40, i.e., the edge pixel electrode 36b is disposed above the common electrode 35.
Specifically, referring to fig. 10, along a direction toward the second substrate 40, the first substrate 30 is sequentially disposed with a gate insulating layer 306, a data line 34, a first insulating layer 303, a common electrode 35, a second insulating layer 304, a metal via line 31, a third insulating layer 305, and an edge pixel electrode 36 b. Wherein, the first substrate 30 is provided with a first via hole 331 and a second via hole 332, and each two edge pixel electrodes 36b connected to the same switch element 37 are connected to the metal via 31 through the first via hole 331; the second via hole 332 is used to electrically connect the edge pixel electrode 36b and the drain 372 of the switching element 37.
The present embodiment further includes other components, please refer to the first embodiment, which will not be described in detail below.
[ third embodiment ]
Fig. 12 is a schematic partial structure view of a first substrate according to a third embodiment of the present invention, and fig. 13 is a cross-sectional view taken along a direction a-a in fig. 12. Referring to fig. 12 and 13, the present embodiment is different from the second embodiment in that a metal conducting line 31, a data line 34, a common electrode 35 and an edge pixel electrode 36b are sequentially disposed on the first substrate 30 along a direction toward the second substrate 40, and each edge pixel electrode 36b is individually connected to one switching element 37.
Specifically, referring to fig. 13, along the direction toward the second substrate 40, the metal via 31, the gate insulating layer 306, the data line 34, the first insulating layer 303, the common electrode 35, the second insulating layer 304 and the edge pixel electrode 36b are sequentially disposed on the first substrate 30. Wherein the scan lines 33 are disposed in the same layer as the metal via lines 31.
With continued reference to fig. 13, each edge pixel electrode 36b is individually connected to the corresponding scan line 33 and data line 34 through its corresponding switch element 37, i.e. each first edge pixel electrode 321, each second edge pixel electrode 322 and each third edge pixel electrode 323 are individually connected to one data line 34. However, only the data line 34 of one first edge pixel electrode 321 in every two first edge pixel electrodes 321 is used for directly receiving the data signal, and the other first edge pixel electrode 321 receives the data signal through the corresponding metal conducting line 31; similarly, only one data line 34 of the second edge pixel electrodes 322 of every two second edge pixel electrodes 322 is used for directly receiving the data signal, and only one data line 34 of the third edge pixel electrodes 322 of every two third edge pixel electrodes 323 is used for directly receiving the data signal.
Referring to fig. 13, the first substrate 30 is provided with a first via hole 331 and a second via hole 332, each two edge pixel electrodes 36b receiving the same data signal are connected to one metal via line 31 through the first via hole 331, and the second via hole 332 is used for conducting the edge pixel electrode 36b and the drain 372 of the switching element 37.
According to the liquid crystal display panel provided by the invention, each edge pixel electrode 36b in the edge pixel unit 302 on the first substrate 30 is designed to be smaller than each central pixel electrode 36a in the central pixel unit 301, and the black matrix 403 is used for properly covering the areas, corresponding to a plurality of edge pixel electrodes 36b, on the second substrate 40, so that the pixel area at the edge of the liquid crystal display panel is reduced, the brightness is equal, the resolution at the edge of a display area is increased, and the sawtooth phenomenon generated at the edge of the display area is reduced.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (9)
1. A liquid crystal display panel having a display region (10) and a non-display region (20), the non-display region (20) surrounding the display region (10), the liquid crystal display panel comprising a first substrate (30) and a second substrate (40) disposed opposite to the first substrate (30), characterized in that a plurality of central pixel cells (301) located in the middle of the display region (10) and a plurality of edge pixel cells (302) located between the central pixel cells (301) and the non-display region (20) are disposed on the first substrate (30), each central pixel cell (301) comprises a plurality of central pixel electrodes (36a), each edge pixel cell (302) comprises a plurality of edge pixel electrodes (36b), the central pixel cells (301) and the edge pixel cells (302) are each defined by the same plurality of scanning lines (33) and a plurality of data lines (34), the area of the edge pixel electrode (36b) is smaller than that of the central pixel electrode (36a), and the number of the edge pixel electrodes (36b) in each edge pixel unit (302) is integral multiple of the number of the central pixel electrodes (36a) in each central pixel unit (301); the number of edge pixel electrodes (36b) in each edge pixel unit (302) is greater than the number of central pixel electrodes (36a) in each central pixel unit (301); the second substrate (40) is provided with a central color resistance unit (401) and an edge color resistance unit (402) along the direction perpendicular to the first substrate (30) corresponding to the area of each central pixel unit (301) and each edge pixel unit (302), and each edge color resistance unit (402) has a part of the area filled with a black matrix (403).
2. The liquid crystal display panel according to claim 1, wherein each central pixel cell (301) includes three central pixel electrodes (36a), the three central pixel electrodes (36a) being connected to the corresponding switching elements (37), respectively; each edge pixel unit (302) includes six edge pixel electrodes (36b), and the six edge pixel electrodes (36b) are respectively connected to corresponding switching elements (37).
3. The lcd panel of claim 2, wherein each edge pixel unit (302) comprises six edge pixel electrodes (36b) arranged along the scan line (33), i.e., two electrically connected first edge pixel electrodes (321), two electrically connected second edge pixel electrodes (322), and two electrically connected third edge pixel electrodes (323), and each two first edge pixel electrodes (321), each two second edge pixel electrodes (322), and each two third edge pixel electrodes (323) are respectively connected to one switching element (37).
4. The lcd panel of claim 1, wherein the central color resistance unit (401) comprises a first central sub-color resistance region (411), a second central sub-color resistance region (412) and a third central sub-color resistance region (413), the first central sub-color resistance region (411a) is correspondingly disposed in the first central sub-color resistance region (411), the second central sub-color resistance region (412a) is correspondingly disposed in the second central sub-color resistance region (412), and the third central sub-color resistance region (413a) is correspondingly disposed in the third central sub-color resistance region (413).
5. The lcd panel of claim 1, wherein the edge color resistance unit (402) comprises six edge sub-color resistance regions arranged along the direction of the scan line (33), namely two first edge sub-color resistance regions (421) for receiving the first edge sub-color resistance (421a), two second edge sub-color resistance regions (422) for receiving the second edge sub-color resistance (422a), and two third edge sub-color resistance regions (423) for receiving the third edge sub-color resistance (423a), each of the edge sub-color resistance regions being for receiving two edge sub-color resistances of the same color.
6. The liquid crystal display panel according to claim 3, wherein a metal via line (31), an edge pixel electrode (36b) and a common electrode (35) are sequentially disposed on the first substrate (30) in a direction toward the second substrate (40), and each metal via line (31) is used to conduct two edge pixel electrodes (36 b).
7. The liquid crystal display panel according to claim 3, wherein a common electrode (35), a metal via line (31) and an edge pixel electrode (36b) are sequentially disposed on the first substrate (30) in a direction toward the second substrate (40), and each metal via line (31) is used to conduct two edge pixel electrodes (36 b).
8. The lcd panel of claim 1, wherein each edge pixel unit (302) comprises six edge pixel electrodes (36b) arranged along the scan line (33), i.e., two electrically connected first edge pixel electrodes (321), two electrically connected second edge pixel electrodes (322), and two electrically connected third edge pixel electrodes (323), and each edge pixel electrode (36b) is connected to the corresponding switching element (37) through the corresponding data line (34) and the corresponding scan line (33).
9. The liquid crystal display panel according to claim 8, wherein a metal via line (31), a data line (34), a common electrode (35), and an edge pixel electrode (36b) are sequentially disposed on the first substrate (30) in a direction toward the second substrate (40).
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101887189A (en) * | 2009-05-13 | 2010-11-17 | Nec液晶技术株式会社 | Color image display device, colored optical filtering substrates, colorful array of pixels substrate and electronic equipment |
| JP4974152B2 (en) * | 2007-02-28 | 2012-07-11 | 京セラディスプレイ株式会社 | LCD panel |
| CN107731101A (en) * | 2017-10-30 | 2018-02-23 | 厦门天马微电子有限公司 | Display panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4974152B2 (en) * | 2007-02-28 | 2012-07-11 | 京セラディスプレイ株式会社 | LCD panel |
| CN101887189A (en) * | 2009-05-13 | 2010-11-17 | Nec液晶技术株式会社 | Color image display device, colored optical filtering substrates, colorful array of pixels substrate and electronic equipment |
| CN107731101A (en) * | 2017-10-30 | 2018-02-23 | 厦门天马微电子有限公司 | Display panel and display device |
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