CN101887324A - Sensing-type display device - Google Patents
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- CN101887324A CN101887324A CN 201010214929 CN201010214929A CN101887324A CN 101887324 A CN101887324 A CN 101887324A CN 201010214929 CN201010214929 CN 201010214929 CN 201010214929 A CN201010214929 A CN 201010214929A CN 101887324 A CN101887324 A CN 101887324A
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Abstract
The invention discloses a sensing-type display device which comprises a display panel and a sensing assembly. The display panel at least comprises a plurality of pixel units arranged along a main direction. The sensing assembly is arranged on the pixel units and at least comprises a plurality of sensing units. The sensing unit is a mesh-type electrode including a plurality of first grid lines with conductivity. At least one of the first grid lines substantially extends along a first direction, wherein the first direction and the main direction form a first angle, and the first angle is an acute angle.
Description
Technical field
The invention relates to a kind of display device, particularly relevant for a kind of sensing-type display device.
Background technology
Under information society now, people grow with each passing day to the dependence of electronic product.Such as mobile phone (mobile phone), palmtop computer (handheld PC), individualized digital assistants (PersonalDigital Assistance, PDA) or intelligent mobile phone electronic products such as (smart phone) is seen everywhere in life.In order to reach more convenient, lighter and handyizatioier of volume and more humane purpose, many information products are by input medias such as traditional keyboard or mouses, change into and use contact panel (touch panel) as input media, the sensing-type display device that wherein has touch-control and Presentation Function simultaneously becomes one of most popular product now especially.
Generally speaking, sensing-type display device comprises display panel and sensing component, and wherein sensing component can be built in the display panel or outward and be added on the display panel.Sensing component generally includes the sensing unit of a plurality of stationary coordinate position, and wherein each sensing unit has one or more electrode respectively.When with point near or touching during sensing unit, can change the electric capacity between the electrode and produce variation on the electrical signals, pass this variable signal back controller, can detect the coordinate of contact origination point, and then make display panel can carry out the change of display frame according to user's operation.
In existing sensing-type display device, have light transmission in order to make sensing component, can make electrode with transparent conductive material.Yet transparent conductive material has the higher shortcoming with the raw material costliness of resistance value, therefore has the people to propose to use net metal to make electrode.Wherein, because net metal is made of superfine metal wire weave mesh, so mesh electrode not only can keep light transmission and improve transmittance, and has less resistance value, and then preferable sensitivity is arranged.
Yet because the pel array in mesh electrode and the display panel is all the structure of periodic arrangement, so mesh electrode and pel array can produce the visual effect of the line (Moire) that changes.Thus, cause sensing-type display device that the not good problem of fuzzy pictures and visual effect is arranged.
Summary of the invention
The invention provides a kind of sensing-type display device, when it keeps preferable sensitivity, have better visual effect.
The present invention proposes a kind of sensing-type display device, and it comprises a display panel and a sensing component.Display panel comprises a plurality of pixel cells at least, and a plurality of pixel cells are arranged along a main direction.Sensing component is positioned on the pixel cell, and sensing component comprises a plurality of sensing units at least.Sensing unit is a mesh electrode, and mesh electrode comprises first mesh lines of many tool electric conductivity.At least one extends along a first direction in fact at least in first mesh lines, and wherein first direction forms one first angle with main direction, and first angle is an acute angle.
The invention also discloses a kind of sensing-type display device, comprising: a display panel, comprise a plurality of pixel columns, respectively this pixel column has a plurality of pixel cells of arranging along a main direction; An and sensing component, comprise: a plurality of first serials, respectively this first serial comprises a plurality of first electrodes that are electrically connected to each other, respectively this first electrode comprises: a plurality of first mesh lines, this first mesh lines extends along a first direction in fact, wherein this first direction forms one first angle with this main direction, and this first angle is an acute angle; And a plurality of second mesh lines, intersect with this first mesh lines in fact; And a plurality of second serials, respectively this second serial comprises a plurality of second electrodes that are electrically connected to each other, wherein this first serial and this second serial are electrically insulated each other.
Based on above-mentioned, the sensing component of sensing-type display device of the present invention has by many staggered mesh electrodes that mesh lines constituted, and wherein the orientation of mesh lines and pixel cell forms an acute angle.Thus, can avoid the pixel cell of the mesh electrode that constitutes by mesh lines and arrayed to produce the repeatedly visual effect of line, and then promote the visual effect and the display quality of sensing-type display device.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Figure 1A is the diagrammatic cross-section of a kind of sensing-type display device of the first embodiment of the present invention;
Figure 1B is for looking synoptic diagram on the pel array among Figure 1A;
Fig. 1 C is for looking synoptic diagram on the sensing component among Figure 1A;
Fig. 1 D be first electrode of Fig. 1 C and second electrode and with the partial schematic diagram of the configuration relation of pixel cell;
Fig. 1 E is the diagrammatic cross-section along the I-I ' line of Fig. 1 C;
Fig. 2 be first electrode of another embodiment of the present invention and second electrode and with the partial schematic diagram of the configuration relation of pixel cell;
Fig. 3 A be the second embodiment of the present invention a kind of sensing-type display device sensing component on look synoptic diagram;
Fig. 3 B be first electrode of Fig. 3 A and second electrode and with the partial schematic diagram of the configuration relation of pixel cell;
Fig. 3 C is along the I-I ' line of Fig. 3 A and the partial cutaway schematic of pin bonding land;
Fig. 4 is the partial cutaway schematic along the another kind of configuration mode of the I-I ' line of Fig. 3 B and pin bonding land;
Fig. 5 A be the fourth embodiment of the present invention a kind of sensing-type display device sensing component on look synoptic diagram;
Fig. 5 B is the partial schematic diagram of the configuration relation of the partial enlarged drawing of Fig. 5 A and dummy electrode and pixel cell;
Fig. 6 A be the fourth embodiment of the present invention a kind of sensing-type display device sensing component on look synoptic diagram;
Fig. 6 B be first electrode of Fig. 6 A and second electrode and with the partial schematic diagram of the configuration relation of pixel cell;
Fig. 7 A is the diagrammatic cross-section of a kind of sensing-type display device of one embodiment of the invention;
Fig. 7 B is for looking synoptic diagram and along the diagrammatic cross-section of I-I ' line on first electrode of the sensing component of Fig. 1 D and Fig. 2 and second electrode;
Fig. 8 is for looking synoptic diagram and along the diagrammatic cross-section of I-I ' line on first electrode of the sensing component of a kind of sensing-type display device of another embodiment of Fig. 1 D and Fig. 2 and second electrode;
Fig. 9 is the diagrammatic cross-section of a kind of sensing-type display device of one embodiment of the invention.
Wherein, Reference numeral:
100,100a, 100b: sensing-type display device 110: display panel
120: array base palte 122: pixel column
124: pixel cell 126: driving component
128: pixel electrode 130: the subtend substrate
130a, 130b: surface 140: display dielectric layer
142: substrate 144: adhesion layer
150: sensing component 152: pin
154: conductor layer 156: dielectric layer
158: protective seam
156a, 156b, 158a: opening
160,170: serial
165: sensing unit
162,172: mesh electrode
164,166,174,176,182,184: mesh lines
167,177: grid
168,178: bridging line
180: dummy electrode
C: pin bonding land
D
m, D
s, D1, D2, D3: direction
DL: data line
SL: sweep trace
Embodiment
Figure 1A is the diagrammatic cross-section of a kind of sensing-type display device of the first embodiment of the present invention, Figure 1B is for looking synoptic diagram on the pel array among Figure 1A, Fig. 1 C is for looking synoptic diagram on the sensing component among Figure 1A, Fig. 1 D be first electrode of Fig. 1 C and second electrode and with the partial schematic diagram of the configuration relation of pixel cell, and Fig. 1 E is the diagrammatic cross-section along the I-I ' line of Fig. 1 C.Please be simultaneously with reference to Figure 1A and Figure 1B, sensing-type display device 100 comprises a display panel 110 and a sensing component 150.Display panel 110 comprises an active assembly array substrate 120, a plurality of pixel column 122, a subtend substrate 130 and a display dielectric layer 140, and wherein display dielectric layer 140 is between active assembly array substrate 120 and subtend substrate 130.Pixel column 122 for example is to be positioned on the active assembly array substrate 120, and a plurality of pixel columns 122 constitute pel array, and wherein each pixel column 122 has along a main direction D
mA plurality of pixel cells 124 of arranging.
In the present embodiment, the pixel column 122 of different lines for example is at a less important direction D
sLast alignment, just pixel cell 124 is along main direction D
mAnd minor direction D
sArrayed is on active assembly array substrate 120.Wherein, main direction D
mFor example be column direction, minor direction D
sFor example be line direction, and main direction D
mFor example be perpendicular to minor direction D
sIn other embodiments, the pixel column 122 of different lines also can be at minor direction D
sUpward unjustified and interconnected, for instance, in one embodiment, the pixel column 122 of odd column for example is at minor direction D
sOn be in alignment with each other, the pixel column 122 of even column for example is at minor direction D
sOn be in alignment with each other, but the pixel column 122 of the pixel column 122 of odd column and even column for example is at minor direction D
sGo up configuration interlaced with each other.In other words, the present invention is not limited the arrangement mode of pixel column 122, but pixel cell 124 for example is to be periodic arrangement on active assembly array substrate 120.
Please refer to Figure 1B, more dispose multi-strip scanning line SL and many data line DL on the active assembly array substrate 120, sweep trace SL extends on column direction, and data line DL extends on line direction.Each pixel cell 124 for example is to comprise driving component 126 and the pixel electrode 128 that electrically connects with driving component 126, driving component 126 for example is a thin film transistor (TFT), and each dot structure 124 electrically connects with corresponding data line DL and sweep trace SL via driving component 126.
Please refer to Figure 1A, in the present embodiment, subtend substrate 130 for example is a colored optical filtering substrates.Display dielectric layer 140 for example is a liquid crystal material.In other words, the sensing-type display device 100 of present embodiment for example is a touch control LCD (Liquid Crystal Display) panel.Display dielectric layer 140 can also be other display material, for example luminous organic material (Organic light emitting material), electrophoretic display materials (Electrophoreticdisplay material) or plasma display material (Plasma display material).Therefore sensing-type display device 100 can also be touch-control organic electroluminescence display panel, touch-control electrophoretic display panel or touch-control Plasmia indicating panel.Detailed display material and panel construction are known by those skilled in the art, therefore repeat no more.
Please be simultaneously with reference to Figure 1A to Fig. 1 C, sensing component 150 is positioned on the array of pixel cell 124, and sensing component 150 comprises a plurality of sensing units 165, and sensing unit 165 is a mesh electrode, in the present embodiment, sensing unit 165 for example is to comprise first electrode 162 and second electrode 172.In detail, in the present embodiment, sensing component 150 comprises a plurality of sensing units 165, and it is arranged in a plurality of first serials 160 and a plurality of second serial 170, and sensing component 150 for example is to be disposed on the outside surface 130a of subtend substrate 130.First serial 160 for example is along one first direction of principal axis D
xExtend, first serial 160 comprises the bridging line 168 of a plurality of first electrodes 162 and a plurality of connection first electrode 162.Second serial 170 for example is along one second direction of principal axis D
yExtend, second serial 170 comprises a plurality of second electrodes 172 that are electrically connected to each other.In the present embodiment, the first direction of principal axis D
xFor example be to be parallel to main direction D
m, and the first direction of principal axis D
xIt for example is column direction.The second direction of principal axis D
yBe parallel to minor direction D
s, and the second direction of principal axis D
yIt for example is line direction.Wherein, first serial 160 is electrically insulated each other, and second serial 170 is electrically insulated each other.
Fig. 1 D be first electrode of Fig. 1 C and second electrode and with the partial schematic diagram of the configuration relation of pixel unit array.What pay special attention to is, in Fig. 1 D, in order clearly to illustrate the configuration relation of first electrode 162 and second electrode 172 and pixel cell 124, the border of a pixel cell 124 shown in Regional Representative Figure 1B who goes out with thick black line institute frame, in the present embodiment, thick black line can representative data line position and sweep trace position, but in other embodiments, and thick black line also can be black matrix" or only be the border of pixel cell but not data line position and sweep trace position.Please be simultaneously with reference to Fig. 1 C and Fig. 1 D, in the present embodiment, first electrode 162 for example is interior ring electrode, second electrode 172 for example is an outer ring electrode, and first electrode 162 respectively by second electrode 172 with mode one to one around.Wherein, first electrode 162 comprises a plurality of first mesh lines 164 and a plurality of second mesh lines 166.First mesh lines 164 extends along a first direction D1 in fact, first direction D1 and main direction D
mForming one first angle θ, 1, the first angle θ 1 is an acute angle.Second mesh lines 166 intersects with first mesh lines 164 in fact.In other words, the mesh electrode of first electrode 162 for being constituted by a plurality of first mesh lines 164 and a plurality of second mesh lines 166, and first electrode 162 has by a plurality of first mesh lines 164 and a plurality of second mesh lines, 166 staggered a plurality of grids 167 that form, and these grids 167 are periodic arrangement.In the present embodiment, the first angle θ 1 is about 20 °～70 °, or is about 30 °～60 °.Second mesh lines 166 for example is to be not parallel to main direction D
mOr minor direction D
s, and second mesh lines 166 and first mesh lines 164 for example are orthogonal.What pay special attention to is, though be to extend to example along first direction D1 all in fact in the present embodiment with first mesh lines 164, but these first mesh lines 164 also can have different bearing of trends, but wherein at least one the first mesh lines 164 are to extend along first direction D1.
In the present embodiment, second electrode 172 for example is to comprise a plurality of the 3rd mesh lines 174 and a plurality of the 4th mesh lines 176.Wherein, the 3rd mesh lines 174 extends along a second direction D2 in fact, second direction D2 and main direction D
mForming one second angle θ, 2, the second angle θ 2 is an acute angle.The 4th mesh lines 176 intersects with the 3rd mesh lines 174 in fact.In other words, the mesh electrode of second electrode 172 for being constituted by a plurality of the 3rd mesh lines 174 and a plurality of the 4th mesh lines 176, and second electrode 172 has by a plurality of the 3rd mesh lines 174 and a plurality of the 4th mesh lines 176 staggered a plurality of grids 177 that form, and these grids 177 are periodic arrangement.In the present embodiment, the 3rd mesh lines 174 and the 4th mesh lines 176 for example are to be essentially straight line.The second angle θ 2 is about 20 °～70 °, or is about 30 °～60 °.The 4th mesh lines 176 for example is to be not parallel to main direction D
mOr minor direction D
s, and the 4th mesh lines 176 and the 3rd mesh lines 174 for example are orthogonal.In the present embodiment, second direction D2 is parallel to first direction D1 in fact, and therefore the 3rd mesh lines 174 for example is to be parallel to first mesh lines 164.In addition, the 4th mesh lines 176 for example is to be parallel to second mesh lines 166.In other words, in the present embodiment, first electrode 162 comes down to be made of two networking rulings with identical bearing of trend with second electrode 172.
Please refer to Fig. 1 C and Fig. 1 E, in the present embodiment, first serial 160 and second serial 170 for example are all to be configured on the outside surface 130a of subtend substrate 130.Sensing component 150 also comprises a dielectric layer 156 and a protective seam 158; dielectric layer 156 is between first serial 160 and second serial 170; win serial 160 and second serial 170 are electrically insulated each other, and protective seam 158 covers first serial 160 and second serials 170.In the present embodiment, bridging line 168 connects first electrode 162.Bridging line 168 for example is not have reticulate texture by the formed lead of patterning conductor layer, and the material of bridging line 168 for example is the transparent conductive metal oxide.Yet in other embodiments, bridging line 168 also can be the netted lead that is made of a plurality of first mesh lines 164 and a plurality of second mesh lines 166.
In the present embodiment, the material of first mesh lines 164, second mesh lines 166, the 3rd mesh lines 174 and the 4th mesh lines 176 comprises metal or transparent conductive metal oxide, metal for example is aluminium, copper, molybdenum, titanium, silver, gold, platinum and alloy thereof, and the transparent conductive metal oxide for example is indium tin oxide (ITO), indium-zinc oxide (IZO) or other metal oxide.The live width of first mesh lines 164, second mesh lines 166, the 3rd mesh lines 174 and the 4th mesh lines 176 for example is between 0.1 μ m to 100 μ m.In other words, first electrode 162 and second electrode 172 come down to be made of superfine metal wire, so first electrode 162 and second electrode 172 have quite high transmittance.Moreover though be that outline with first electrode 162 and second electrode 172 is that rectangle is an example in the present embodiment, in other embodiments, the outline of first electrode 162 and second electrode 172 also can be rhombus, circle or other shape arbitrarily.In addition, the parameters such as crossing angle of the crossing angle of the spacing between the adjacent mesh lines 164,166,174,176, first mesh lines 164 and second mesh lines 166, the 3rd mesh lines 174 and the 4th mesh lines 176 can be adjusted according to application target, and the present invention is not limited.
What pay special attention to is, though constituted by two networking rulings with second electrode 172 with identical bearing of trend with first electrode 162, but in other embodiments, the 3rd mesh lines 174 can be not parallel with first mesh lines 164, the 4th mesh lines 176 also can be not parallel with second mesh lines 166, in other words, first electrode 162 also can be made of two networking rulings with different bearing of trends with second electrode 172.In addition, in the present embodiment, all constituted by many staggered mesh lines with first electrode 162 and second electrode 172, yet, in other embodiments, first electrode 162 and second electrode 172 wherein one are formed by patterning conductor layer and are not had reticulate texture.
Please refer to Fig. 1 D, in general, when electrode 162,172 have by a plurality of mesh lines 164,174 and a plurality of mesh lines 166, the 176 staggered a plurality of grids 167 that form, 177 o'clock, owing to constitute electrode 162,172 grid 167,177 with display panel 110 in pixel cell 124 be all the periodic arrangement structure, therefore by electrode 162,172 grid 167, the array of 177 arrays that are arranged in and pixel cell 124 (being pel array) can produce the repeatedly visual effect of line, and causes by mesh lines 164,166,174,176 electrodes that constituted 162,172 become visual visible structure.Yet in the present embodiment, the orientation that first mesh lines 164 that constitutes first electrode 162 is designed to pixel column 122 (is main direction D
m) form one first angle θ 1, just can avoid first electrode 162 and the array (being pel array) of pixel cell 124 to produce the repeatedly visual effect of line, and make first electrode 162 become visual sightless structure.Similarly, in the present embodiment, the orientation that the 3rd mesh lines 174 that constitutes second electrode 172 is designed to pixel column 122 (is main direction D
m) form one second angle θ 2, just can avoid second electrode 172 and the array (being pel array) of pixel cell 124 to produce the repeatedly visual effect of line, and make second electrode 172 become visual sightless structure.Thus, can significantly promote the visual effect and the display quality of sensing-type display device 100.
Special one carry be, though be that to be essentially straight line with first mesh lines 164 that constitutes first electrode 162 and second mesh lines 166 be example in the present embodiment, but in another embodiment, as shown in Figure 2, first mesh lines 164 and second mesh lines 166 also can be essentially curve, wherein first mesh lines 164 extends along a first direction D1 in fact, and wherein first direction D1 is a tangential direction, and first direction D1 and main direction D
mForming one first angle θ, 1, the first angle θ 1 is an acute angle.Second mesh lines 166 intersects with first mesh lines 164 in fact.Thus, also can avoid first electrode 162 and the array (being pel array) of pixel cell 124 to produce the repeatedly visual effect of line, and make first electrode 162 become visual sightless structure.Similarly, the 3rd mesh lines 174 and the 4th mesh lines 176 that constitute second electrode 172 also can be essentially curve, wherein the 3rd mesh lines 174 extends along a second direction D2 in fact, and wherein second direction D2 is a tangential direction, and second direction D2 and main direction D
mForming one second angle θ, 2, the second angle θ 2 is an acute angle.The 4th mesh lines 176 intersects with the 3rd mesh lines 174 in fact.Thus, also can avoid second electrode 172 and the array (being pel array) of pixel cell 124 to produce the repeatedly visual effect of line, and make second electrode 172 become visual sightless structure.Thus, have first electrode 162 shown in Figure 2 and the sensing-type display device of second electrode 172 and have better visual effect and display quality.
In the above-described embodiment, the electrode 162,172 of the sensing component 150 of sensing-type display device 100 is for by mesh lines 164,166,174,176 reticulate textures that constituted, so electrode 162,172 has preferable transmittance, less resistance value and preferable sensitivity.For instance, the sheet resistance of electrode 162,172 (sheet resistance) for example is less than 5 Ω/, and the penetrance of sensing component 150 for example is greater than 90%.In addition, because the tangential direction of the mesh lines 164,174 of formation electrode 162,172 and the orientation of pixel column 122 (are main direction D
m) between have specific acute angle (i.e. the first angle θ 1 and the second angle θ 2), so can avoid the array (being pel array) of electrode 162,172 and pixel cell 124 to produce the repeatedly visual effect of line, and make electrode 162,172 become visual sightless structure.Therefore, the sensing-type display device 100 of present embodiment has better visual effect and display quality, and has good sensing sensitivity in operation.
What deserves to be mentioned is, be to be example in first embodiment with first electrode 162 shown in Fig. 1 C and second electrode 172, but in other embodiments, first electrode 162 and second electrode 172 also can have other configuration, and can dispose other structure between first electrode 162 and second electrode 172.
Second embodiment
Fig. 3 A be the second embodiment of the present invention a kind of sensing-type display device sensing component on look synoptic diagram, Fig. 3 B be first electrode of Fig. 3 A and second electrode and with the partial schematic diagram of the configuration relation of pixel cell, and Fig. 3 C is along the I-I ' line of Fig. 3 A and the partial cutaway schematic of pin bonding land.Please be simultaneously with reference to Figure 1B and Fig. 3 A, sensing component 150 is positioned on the array of pixel cell 124, and sensing component 150 comprises a plurality of sensing units 165, and sensing unit 165 is a mesh electrode, in the present embodiment, sensing unit 165 for example is to comprise first electrode 162 and second electrode 172.In detail, in the present embodiment, sensing component 150 comprises a plurality of sensing units 165, and it is arranged in a plurality of first serials 160 and a plurality of second serial 170.In the present embodiment, first serial 160 for example is along one first direction of principal axis D
xExtend, first serial 160 comprises the bridging line 168 of a plurality of first electrodes 162 and a plurality of connection first electrode 162.Second serial 170 for example is along one second direction of principal axis D
yExtend, second serial 170 comprises a plurality of second electrodes 172 that are electrically connected to each other.
Please be simultaneously with reference to Fig. 3 A and Fig. 3 B, in the present embodiment, first electrode 162 is around second electrode 172.First electrode 162 comprises that a plurality of first mesh lines 164 extend along a first direction D1 in fact with a plurality of second mesh lines, 166, the first mesh lines 164, first direction D1 and main direction D
mForming one first angle θ, 1, the first angle θ 1 is an acute angle, and second mesh lines 166 intersects with first mesh lines 164 in fact, and second mesh lines 166 for example is to be not parallel to main direction D
m, wherein main direction D
mBe the bearing of trend of pixel column 122 (can with reference to described in first embodiment).
Second electrode 172 comprises that a plurality of the 3rd mesh lines 174, a plurality of the 4th mesh lines 176, the three mesh lines 174 extend along a second direction D2 in fact, second direction D2 and main direction D
mForming one second angle θ, 2, the second angle θ 2 is an acute angle, and the 4th mesh lines 176 intersects with the 3rd mesh lines 174 in fact.The first angle θ 1 and the second angle θ 2 are about 20 °～70 °, or are about 30 °～60 °.Wherein, the 3rd mesh lines 174 for example is to be parallel to first mesh lines 164, and the 4th mesh lines 176 for example is to be parallel to second mesh lines 166.In other words, in the present embodiment, first electrode 162 comes down to be made of two networking rulings with identical bearing of trend with second electrode 172.Certainly, in other embodiments, first electrode 162 also can be made of two networking rulings with different bearing of trends with second electrode 172.Moreover in other embodiments, first electrode 162 and second electrode 172 wherein one are formed by patterning conductor layer and are not had reticulate texture.Parameters such as the material of mesh lines 164,166,174,176, live width, spacing can not given unnecessary details in this with reference to described in first embodiment.What pay special attention to is, though be to extend to example along first direction D1 all in fact in the present embodiment with first mesh lines 164, but these first mesh lines 164 also can have different bearing of trends, but wherein at least one the first mesh lines 164 are to extend along first direction D1.
Please be simultaneously with reference to Fig. 3 B and Fig. 3 C, sensing component 150 can further comprise a dielectric layer 156 and a protective seam 158.Dielectric layer 156 covers first electrode 162 and second electrodes 172, and bridging line 168 is disposed on the dielectric layer 156 and connects first electrode 162 by the opening 156a of dielectric layer 156.In other words, dielectric layer 156 is disposed between the bridging line 168 and second electrode 172, and first serial 160 and second serial 170 are electrically insulated each other.Protective seam 158 covers first serial 160, second serial 170 and dielectric layer 156.Moreover, in the pin bonding land C that the end with first serial 160 and second serial 170 electrically connects, dielectric layer 156 covers pin 152, and patterning conductor layer 154 is disposed on the dielectric layer 156 and passes through the opening 156b and pin 152 electric connections of dielectric layer 156.Protective seam 158 covers dielectric layer 156 and has the opening 158a that exposes patterning conductor layer 154.Wherein, bridging line 168 for example is the transparent conductive metal oxide with the material of patterning conductor layer 154.Moreover in another embodiment, as shown in Figure 4, dielectric layer 156 also can only cover second electrode 172, and bridging line 168 is disposed on the dielectric layer 156 and connects first electrode 162.Protective seam 158 covers bridging line 168, dielectric layer 156 and first electrode 162 and second electrode 172.In the C of pin bonding land, patterning conductor layer 154 is disposed on the pin 152 and with pin 152 and electrically connects.Protective seam 158 overlay pattern conductor layers 154 are with pin 152 and have the opening 158a that exposes patterning conductor layer 154.
In the present embodiment, the orientation that first mesh lines 164 of first electrode 162 is designed to pixel column 122 (is main direction D
m) form one first angle θ 1, and the orientation that the 3rd mesh lines 174 of second electrode 172 is designed to pixel column 122 (is main direction D
m) form one second angle θ 2, just can avoid first electrode 162 and second electrode 172 and the array (being pel array) of pixel cell 124 to produce the repeatedly visual effect of line.Thus, the sensing-type display device with sensing component 150 has better visual effect and display quality, and has good sensing sensitivity in operation.
The 3rd embodiment
Fig. 5 A be the third embodiment of the present invention a kind of sensing-type display device sensing component on look synoptic diagram, and Fig. 5 B is the partial schematic diagram of the configuration relation of the partial enlarged drawing of Fig. 5 A and dummy electrode and pixel unit array.The structure of the sensing component shown in the structure of the sensing component of present embodiment and Fig. 3 A is roughly the same, and its main difference is between first electrode 162 and second electrode 172 and more disposes a plurality of dummy electrodes 180, below only describes at dummy electrode 180.
Please in the present embodiment, dispose a plurality of dummy electrodes 180 between first electrode 162 and second electrode 172 simultaneously with reference to Fig. 5 A and Fig. 5 B, dummy electrode 180 is for floating.Dummy electrode 180 for example is the mesh electrode that is made of a plurality of the 5th mesh lines 182 and a plurality of the 6th mesh lines 184.Wherein, the 5th mesh lines 182 extends along a third direction D3 in fact, wherein third direction D3 and main direction D
mForm a third angle degree θ 3, third angle degree θ 3 is an acute angle.Third angle degree θ 3 is about 20 °～70 °, or is about 30 °～60 °.The 6th mesh lines 184 intersects with the 5th mesh lines 182 in fact.Wherein, third direction D3 is parallel to first direction D1 in fact.In other words, the 5th mesh lines 182 for example is to be parallel to first mesh lines 164 (shown in Fig. 3 B) that constitutes first electrode 162.In addition, the 6th mesh lines 184 for example is to be parallel to second mesh lines 166 (shown in Fig. 3 B) that constitutes first electrode 162.Certainly, in other embodiments, the 5th mesh lines 182 can be not parallel to first mesh lines 164, and the 6th mesh lines 184 can be not parallel to second mesh lines 166.In other words, dummy electrode 180 can be made of the mesh lines with different bearing of trends with first electrode 162 and second electrode 172.In the present embodiment, the material of the 5th mesh lines 182 and the 6th mesh lines 184 comprises metal or transparent conductive metal oxide, metal for example is aluminium, copper, molybdenum, titanium, silver, gold, platinum and alloy thereof, and the transparent conductive metal oxide for example is indium tin oxide (ITO), indium-zinc oxide (IZO) or other metal oxide.The live width of the 5th mesh lines 182 and the 6th mesh lines 184 for example is between 0.1 μ m to 100 μ m.Therefore, dummy electrode 180 comes down to be made of superfine metal wire, so dummy electrode 180 has quite high transmittance.What pay special attention to is, though be in the present embodiment with dummy electrode 180 for being example by mesh lines 182,184 mesh electrodes that constituted, yet in other embodiments, dummy electrode 180 is formed and is not had a reticulate texture by patterning conductor layer.
In the present embodiment, configuration dummy electrode 180 between first electrode 162 and second electrode 172, dummy electrode 180 can be filled up the white space between first electrode 162 and second electrode 172, makes win electrode 162 and the visual sightless structure of second electrode, 172 formation.In addition, the orientation that the mesh lines 182 of dummy electrode 180 is designed to pixel column 122 (is main direction D
m) form an angle θ 3 and can avoid the netted dummy electrode 180 and the array (being pel array) of pixel cell 124 to produce the repeatedly visual effect of line.Thus, the sensing-type display device with sensing component 150 has better visual effect and display quality, and has good sensing sensitivity in operation.
The 4th embodiment
Fig. 6 A be the fourth embodiment of the present invention a kind of sensing-type display device sensing component on look synoptic diagram, and Fig. 6 B be first electrode of Fig. 6 A and second electrode and with the partial schematic diagram of the configuration relation of pixel unit array.Please be simultaneously with reference to Figure 1A and Fig. 6 A, sensing component 150 is positioned on the pixel cell 124, and sensing component 150 comprises a plurality of sensing units, and sensing unit is a mesh electrode, and in the present embodiment, sensing Ying Yuan for example is first electrode 162 or second electrode 172.In detail, in the present embodiment, sensing component 150 comprises a plurality of sensing units 165, and it is arranged in a plurality of first serials 160 and a plurality of second serial 170.First serial 160 for example is along one first direction of principal axis D
xExtend, first serial 160 comprises the bridging line 168 of a plurality of first electrodes 162 and a plurality of connection first electrode 162.Second serial 170 for example is along one second direction of principal axis D
yExtend, second serial 170 comprises the bridging line 178 of a plurality of second electrodes 172 that are electrically connected to each other and a plurality of connection second electrode 172.Wherein, first serial 160 is electrically insulated each other, and second serial 170 is electrically insulated each other.The staggered place of first serial 160 and second serial 170 more disposes a dielectric layer 156, and first serial 160 and second serial 170 are electrically insulated each other.
Please be simultaneously with reference to Fig. 6 A and Fig. 6 B, in the present embodiment, first electrode 162 and second electrode 172 for example are sensing units 165, first electrode 162 comprises a plurality of first mesh lines 164 and a plurality of second mesh lines 166, first mesh lines 164 extends along a first direction D1 in fact, first direction D1 and main direction D
mForming one first angle θ, 1, the first angle θ 1 is an acute angle.Second mesh lines 166 intersects with first mesh lines 164 in fact, and second mesh lines 166 for example is to be not parallel to main direction D
m, wherein main direction D
mBe the bearing of trend of pixel column 122 (can with reference to described in first embodiment).Second electrode 172 comprises that a plurality of the 3rd mesh lines 174 extend along a second direction D2 in fact with a plurality of the 4th mesh lines 176, the three mesh lines 174, second direction D2 and main direction D
mForming one second angle θ, 2, the second angle θ 2 is an acute angle, and the 4th mesh lines 176 intersects with the 3rd mesh lines 174 in fact.Wherein, the 3rd mesh lines 174 for example is to be parallel to first mesh lines 164, and the 4th mesh lines 176 for example is to be parallel to second mesh lines 166.The first angle θ 1 and the second angle θ 2 are about 20 °～70 °, or are about 30 °～60 °.Certainly, in other embodiments, the 3rd mesh lines 174 can be not parallel to first mesh lines 164, and the 4th mesh lines 176 can be not parallel to second mesh lines 166.In addition, though be to be that the sensing unit 165 of rectangle is an example with first electrode 162 and second electrode 172 in the present embodiment, in other embodiments, first electrode 162 and second electrode 172 also can have other shape.Moreover parameters such as the material of mesh lines 164,166,174,176, live width, spacing can not given unnecessary details in this with reference to described in first embodiment.Special one what carry is that in the present embodiment, bridging line 168,178 for example is not have reticulate texture by the formed lead of patterning conductor layer, and the material of bridging line 168,178 for example is the transparent conductive metal oxide.Yet in other embodiments, bridging line 168,178 also can be the netted lead that is made of mesh lines, and for instance, bridging line 178 can comprise that a plurality of the 3rd mesh lines 174 are with a plurality of the 4th mesh lines 176 and integrally formed with second electrode 172.
In the present embodiment, the orientation that first mesh lines 164 of first electrode 162 is designed to pixel column 122 (is main direction D
m) form one first angle θ 1, and the orientation that the 3rd mesh lines 174 of second electrode 172 is designed to pixel column 122 (is main direction D
m) form one second angle θ 2, can avoid first electrode 162 and the array (being pel array) of pixel cell 124 and the array (being pel array) of second electrode 172 and pixel cell 124 to produce the repeatedly visual effect of line.Therefore, the sensing-type display device with sensing component 150 has better visual effect and display quality, and has good sensing sensitivity in operation.
Special one what carry is in the above-described embodiment, shown in Figure 1A, to be that sensing component 150 is formed on the outside surface 130a of subtend substrate 130.But in another embodiment, shown in Fig. 7 A and Fig. 7 B, in sensing-type display device 100a, sensing component 150 can also be built in the display panel 110, just sensing component 150 is formed on the inside surface 130b of subtend substrate 130, makes sensing component 150 between subtend substrate 130 and display dielectric layer 140.Wherein, first electrode 162 and second electrode 172 all are formed on the inside surface 130b of subtend substrate 130, and first serial 160 just and second serial 170 all are formed on the inside surface 130b of subtend substrate 130.
In another embodiment, first serial 160 and second serial 170 can be positioned on the different surfaces of subtend substrate 130, for instance, as shown in Figure 8, first electrode 162 and second electrode 172 can be distinguished the position on the outside surface 130a and inside surface 130b of subtend substrate 130, its outer surface 130a and inside surface 130b are positioned at the relative both sides of subtend substrate 130, or first electrode 162 and second electrode 172 also can be distinguished position (not shown) on the inside surface 130b of subtend substrate 130 and outside surface 130a.Moreover, as shown in Figure 9, in sensing-type display device 100b, sensing component 150 can also be made in earlier on the substrate 142, the substrate 142 that is formed with sensing component 150 can directly be positioned over or be attached on the outside surface of display panel 110 by an adhesion layer 144, to form the sensing-type display device 100b of external labeling type design, wherein first serial 160 and second serial 170 can be formed on the same surface of substrate 142 (not shown) on (not shown) or the apparent surface.In other words, sensing component 150 can with variety of way with combine or be formed in the display panel 110 in display panel 110.
What deserves to be mentioned is, though be that first electrode 162 and second electrode 172 that has shown in Fig. 1 C, Fig. 3 A and Fig. 6 A with sensing component 150 is example in the above-described embodiment, but the present invention is not as limit, in other words, in other embodiments, first mesh lines and second mesh lines also can constitute any person of ordinary skill in the field known other electrode structure.In addition, though be made of first mesh lines and second mesh lines or the 3rd mesh lines and the 4th mesh lines with mesh electrode, in other embodiments, mesh electrode also might only be made of first mesh lines.
In sum, the sensing component of sensing-type display device of the present invention has by many staggered electrodes that mesh lines constituted, and wherein the orientation of mesh lines and pixel cell forms an acute angle.Thus, can avoid the pixel cell of the mesh electrode that constitutes by mesh lines and arrayed to produce the repeatedly visual effect of line, and then promote the visual effect and the display quality of sensing-type display device.In addition,, therefore can have lower resistance value and higher penetrating rate, and then promote the sensing sensitivity and the display quality of mesh electrode by the mesh electrode that mesh lines constituted because mesh lines can be superfine metal wire.Moreover, can between mesh electrode, dispose dummy electrode, make mesh electrode become visual invisible structure.In other words, sensing-type display device of the present invention has better visual effect and display quality, and has good sensing sensitivity in operation.
Though the present invention with embodiment openly as above; but it is not in order to limit the present invention; any person of ordinary skill in the field; without departing from the spirit and scope of the present invention; when doing a little change and modification, so protection scope of the present invention is as the criterion when looking the accompanying Claim protection domain person of defining.
Claims (18)
1. a sensing-type display device is characterized in that, comprising:
One display panel comprises a plurality of pixel cells at least, and this pixel cell is arranged along a main direction; And
One sensing component is positioned on this pixel cell, comprises at least:
A plurality of sensing units, respectively this sensing unit is a mesh electrode, this mesh electrode comprises:
First mesh lines of many tool electric conductivity, at least one extends along a first direction in this first mesh lines, and wherein this first direction forms one first angle with this main direction, and this first angle is an acute angle.
2. sensing-type display device as claimed in claim 1 is characterized in that, this first angle is 20 °～70 °.
3. sensing-type display device as claimed in claim 1 is characterized in that, this first mesh lines is straight line or curve.
4. sensing-type display device as claimed in claim 1 is characterized in that, also comprises a plurality of dummy electrodes, and this dummy electrode is disposed between those sensing units, and wherein respectively this dummy electrode comprises:
A plurality of the 5th mesh lines, the 5th mesh lines extends along a third direction, and wherein this third direction forms a third angle degree with this main direction, and this third angle degree is an acute angle; And
A plurality of the 6th mesh lines intersect with the 5th mesh lines, and wherein this third direction is parallel to this first direction.
5. sensing-type display device as claimed in claim 1 is characterized in that, respectively this mesh electrode of this sensing unit comprises one first electrode and one second electrode.
6. sensing-type display device as claimed in claim 5 is characterized in that, one of them is external electrode for this first electrode and this second electrode, and this first electrode and this second electrode wherein another is interior electrode.
7. sensing-type display device as claimed in claim 5 is characterized in that, also comprises a plurality of dummy electrodes, and this dummy electrode is disposed between this first electrode and this second electrode, and wherein respectively this dummy electrode comprises:
A plurality of the 5th mesh lines, the 5th mesh lines extends along a third direction, and wherein this third direction forms a third angle degree with this main direction, and this third angle degree is an acute angle; And
A plurality of the 6th mesh lines intersect with the 5th mesh lines, and wherein this third direction is parallel to this first direction.
8. sensing-type display device as claimed in claim 5 is characterized in that, this display panel also comprises:
Array basal plate, wherein this pixel cell is positioned on this array base palte;
One subtend substrate; And
One display dielectric layer, between this array base palte and this subtend substrate, wherein this sensing component is disposed on this subtend substrate, wherein this first electrode and this second electrode are disposed on the same surface of this subtend substrate, wherein this first electrode is disposed on the first surface of this subtend substrate, this second electrode is disposed on the second surface of this subtend substrate, and this first surface and this second surface are positioned at the relative both sides of this subtend substrate.
9. sensing-type display device as claimed in claim 5 is characterized in that, also comprises one first substrate, and wherein this sensing component is disposed on this first substrate and this first substrate is positioned on this display panel.
10. sensing-type display device as claimed in claim 9 is characterized in that, this first electrode and this second electrode are disposed on the same surface of this first substrate.
11. sensing-type display device as claimed in claim 9, it is characterized in that, this first electrode is disposed on the first surface of this first substrate, and this second electrode is disposed on the second surface of this first substrate, and this first surface and this second surface are positioned at the relative both sides of this first substrate.
12. sensing-type display device as claimed in claim 5 is characterized in that, this sensing component also comprises a dielectric layer, between this first electrode and this second electrode.
13. sensing-type display device as claimed in claim 5, it is characterized in that, this sensing component comprises a plurality of first serials and a plurality of second serial, respectively this first serial comprises this first electrode that is electrically connected to each other, respectively this second serial comprises this second electrode that is electrically connected to each other, and wherein this first serial and this second serial are electrically insulated each other.
14. sensing-type display device as claimed in claim 1 is characterized in that, this sensing component is positioned at this display panel.
15. sensing-type display device as claimed in claim 1 is characterized in that, this first electrode and this second electrode wherein one of at least material comprise metal or transparent conductive metal oxide.
16. sensing-type display device as claimed in claim 1 is characterized in that, the penetrance of this sensing component is greater than 90%.
17. sensing-type display device as claimed in claim 1 is characterized in that, this mesh electrode also comprises many second mesh lines, and this second mesh lines and this first mesh lines intersect.
18. a sensing-type display device is characterized in that, comprising:
One display panel comprises a plurality of pixel columns, and respectively this pixel column has a plurality of pixel cells of arranging along a main direction; And
One sensing component comprises:
A plurality of first serials, respectively this first serial comprises a plurality of first electrodes that are electrically connected to each other, respectively this first electrode comprises:
A plurality of first mesh lines, this first mesh lines extend along a first direction in fact, and wherein this first direction forms one first angle with this main direction, and this first angle is an acute angle; And
A plurality of second mesh lines intersect with this first mesh lines in fact; And
A plurality of second serials, respectively this second serial comprises a plurality of second electrodes that are electrically connected to each other, wherein this first serial and this second serial are electrically insulated each other.
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| CN201010214929A CN101887324B (en) | 2010-06-28 | 2010-06-28 | Sensing-type display device |
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