CN100578331C - Half-penetration and half-reflecting type liquid crystal display panel - Google Patents
Half-penetration and half-reflecting type liquid crystal display panel Download PDFInfo
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- CN100578331C CN100578331C CN200810145896A CN200810145896A CN100578331C CN 100578331 C CN100578331 C CN 100578331C CN 200810145896 A CN200810145896 A CN 200810145896A CN 200810145896 A CN200810145896 A CN 200810145896A CN 100578331 C CN100578331 C CN 100578331C
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Abstract
The invention discloses a semi-transmissive semi-reflective type liquid crystal display panel, comprising a first substrate, a second substrate and a liquid crystal layer, wherein the first substrate is provided with a plurality of pixel areas, each pixel area provided with a reflective area and a transmissive area is configured with a scanning line, a data line, a switch assembly and a pixel electrode, the switch assembly is positioned in the reflective area and electrically connected the scanning line and the data line, and the pixel electrode is positioned in the transmissive area; the second substrate is oppositely arranged to the first substrate, wherein the second substrate is provided with a plurality of unit areas corresponding to pixel areas, and a luminous assembly and a signal line are arranged in each unit area, the luminous assembly is arranged corresponding to the transmissive area of the first substrate, the signal line is electrically connected with the luminous assembly.
Description
Technical field
The invention relates to a kind of display panels (Liquid Crystal Display panel, LCDpanel), and particularly relevant for a kind of semi-penetrating and semi-reflective liquid crystal display panel (transflective Liquid Crystal Display panel) with double-sided display function.
Background technology
Along with showing being showing improvement or progress day by day of science and technology, people can make life convenient more by the auxiliary of display device, for asking light, the thin characteristic of display, so flat-panel screens (Flat Panel Display FPD) becomes present main flow.In many flat-panel screens, (Liquid Crystal Display LCD) have advantageous characteristic such as high spatial utilization ratio, low consumpting power, radiationless and low electromagnetic interference (EMI), so LCD is very popular for LCD.Yet, LCD is non-self luminous display, add light source to provide display panels enough brightness so need one, according to the difference of its light source source or position, can be divided into three kinds of penetrating LCD, semi-penetrated semi-reflected liquid crystal display and reflective liquid-crystal displays.
Penetrating LCD mainly with backlight module (backlight module) as light source, its pixel electrode is a transparency electrode, penetrates in order to backlight.Reflective liquid-crystal display mainly with front light-source (frontlight) or extraneous surround lighting as light source, its pixel electrode is metal or the conductive material with good reflection characteristic, is suitable for reflecting front light-source or extraneous surround lighting.Semi-penetrated semi-reflected liquid crystal display then can utilize backlight and extraneous surround lighting to show simultaneously, its pixel region can be divided into echo area and penetrating region, have the reflection horizon that is suitable for reflecting extraneous surround lighting on the echo area, then have transparent pixel electrode on the penetrating region and penetrate in order to backlight.Because semi-penetrated semi-reflected liquid crystal display can use backlight and extraneous surround lighting simultaneously, therefore, the application of semi-penetrating and semi-reflective liquid crystal display panel is subjected to each side gradually and attractes attention.Yet the light of backlight also can be injected the echo area, but the light of this part there is no substantial contribution to the echo area.
On the other hand, along with the progress that shows science and technology, the application of LCD is very wide.Wherein, the LCD with double-sided display function can be applicable to Portable (portable) consumer electronic device, or views and admires for masses as large-sized liquid crystal display television.Therefore, can provide the market of the LCD of double-sided display function also to should not be underestimated.In general, can use two display panels to finish the making of the LCD of double-sided display, to reach the purpose of double-sided display.Yet on circuit design, this kind technology not only needs to use two groups of driving circuits to drive two display panels respectively, and the size of LCD, weight and cost of manufacture also can with increase.
Summary of the invention
The invention provides a kind of semi-penetrating and semi-reflective liquid crystal display panel, it has luminescence component required light source when showing so that penetrating region to be provided.
The present invention provides a kind of semi-penetrating and semi-reflective liquid crystal display panel in addition, and it has the function of double-sided display.
For specifically describing content of the present invention, at this a kind of semi-penetrating and semi-reflective liquid crystal display panel is proposed, it comprises first substrate, second substrate and a liquid crystal layer.Have a plurality of pixel regions on first substrate, each pixel region has an echo area and a penetrating region, and comprises in each pixel region and dispose first sweep trace, a data line, first switch module and a pixel electrode.First switch module is positioned at the echo area, and electrically connects with first sweep trace and data line.Pixel electrode is positioned at echo area and penetrating region.Second substrate is positioned at the subtend of first substrate, wherein has a plurality of unit areas in respective pixel zone on second substrate, and comprises in each unit area and be provided with a luminescence component and a signal wire.The penetrating region setting of corresponding first substrate of luminescence component, and signal wire and luminescence component electrically connect.Liquid crystal layer is between first substrate and second substrate.
In one embodiment of this invention, semi-penetrating and semi-reflective liquid crystal display panel comprises light polarizing film in addition, and this light polarizing film is arranged in each unit area of second substrate, and covers luminescence component.
In one embodiment of this invention, semi-penetrating and semi-reflective liquid crystal display panel comprises a color filter patterns in addition, and this color filter patterns is arranged in each unit area of second substrate.
In one embodiment of this invention, semi-penetrating and semi-reflective liquid crystal display panel comprises an electrode layer in addition, and this electrode layer is arranged in each unit area of second substrate.
In one embodiment of this invention, semi-penetrating and semi-reflective liquid crystal display panel comprises a light shield layer in addition, on this light shield layer is arranged on around each unit area of second substrate.
In one embodiment of this invention, semi-penetrating and semi-reflective liquid crystal display panel comprises a flatness layer in addition, and this flatness layer is arranged in each pixel region of first substrate, and covers on the echo area, but exposes penetrating region.In one embodiment, the surface of flatness layer has a plurality of raised designs.In another embodiment, semi-penetrating and semi-reflective liquid crystal display panel comprises a reflection horizon in addition, and this reflection horizon covers on the flatness layer.
In one embodiment of this invention, pixel electrode covers on the reflection horizon.
In one embodiment of this invention, comprise second sweep trace and second switch assembly in each pixel region in addition.Second sweep trace is parallel in fact with first sweep trace.The second switch assembly is positioned at penetrating region, and electrically connects with second sweep trace and data line.In addition, pixel electrode is divided into first pixel electrode and second pixel electrode.First pixel electrode is positioned at the echo area, and electrically connects with first switch module.Second pixel electrode is positioned at penetrating region, and electrically connects with the second switch assembly.In one embodiment, first electrode layer and the second electrode lay are arranged in each unit area of second substrate, and first electrode layer is corresponding to first pixel electrode, and the second electrode lay is corresponding to second pixel electrode.
In one embodiment of this invention, semi-penetrating and semi-reflective liquid crystal display panel comprises polaroid on the polaroid and in addition.Following polaroid is arranged on first substrate, is arranged on second substrate and go up polaroid.
In one embodiment of this invention, luminescence component comprises a cathode layer, an anode layer and an organic luminous layer, and wherein organic luminous layer is between cathode layer and anode layer.In one embodiment, organic luminous layer is formed by multilayer luminous organic material institute storehouse.In another embodiment, organic luminous layer comprises [8-hydroxyquinoline aluminum: rubrene] (tris-(8-hydroxy quinolinol) aluminum:rubrene, Alq
3: rubrene), the triaromatic amine analog derivative (α-naphylhenyldiamine, NPB) or oxine aluminium.In another embodiment, organic luminous layer is a white luminous layer.
For specifically describing content of the present invention, at this a kind of semi-penetrating and semi-reflective liquid crystal display panel is proposed in addition, comprise: one first substrate, on this first substrate a plurality of pixel regions are set, each pixel region has an echo area and a penetrating region, and each pixel region comprises: an one scan line and a data line; One switch module, itself and this sweep trace and this data line electrically connect; And a pixel electrode, itself and this switch module electrically connects; One second substrate, this second substrate has a plurality of unit areas, and each unit area has an echo area and a penetrating region, wherein, the echo area of first substrate and the mutual corresponding setting in the echo area of second substrate, the corresponding setting mutually of the transmission area of the transmission area of first substrate and second substrate; A plurality of white luminous assemblies are separately positioned in this penetrating region of this second substrate, and each those luminescence component comprises a cathode layer, the organic luminous layer of an anode layer and between cathode layer and anode layer; And a liquid crystal layer, between this first substrate and this second substrate.
In one embodiment of this invention, semi-penetrating and semi-reflective liquid crystal display panel comprises light polarizing film in addition, and this light polarizing film is arranged on second substrate, and covers white luminous assembly.
In one embodiment of this invention, semi-penetrating and semi-reflective liquid crystal display panel comprises an electrode layer in addition, and this electrode layer is arranged on second substrate.
In one embodiment of this invention, semi-penetrating and semi-reflective liquid crystal display panel comprises a flatness layer in addition, and this flatness layer is arranged on first substrate, and covers pixel region.In one embodiment, the local surfaces of flatness layer has a plurality of raised designs.In another embodiment, semi-penetrating and semi-reflective liquid crystal display panel comprises a reflection horizon in addition, and this reflection horizon covers on the local surfaces of flatness layer.
In one embodiment of this invention, semi-penetrating and semi-reflective liquid crystal display panel comprises first electrode layer and the second electrode lay in addition, and wherein first electrode layer and the second electrode lay are arranged on second substrate.First electrode layer is arranged in the echo area, and the second electrode lay is arranged in penetrating region.
In one embodiment of this invention, each pixel region comprises first sweep trace, a data line, first switch module, first pixel electrode, second sweep trace, second switch assembly and second pixel electrode.The first switch module correspondence is arranged in the echo area of second substrate, and electrically connects with first sweep trace and data line.The first pixel electrode correspondence is arranged in the echo area of second substrate, and electrically connects with first switch module.The parallel in fact first sweep trace setting of second sweep trace.Second switch assembly correspondence is arranged in the penetrating region of second substrate, and electrically connects with second sweep trace and data line.The second pixel electrode correspondence is arranged in the penetrating region of second substrate, and electrically connects with the second switch assembly.
In one embodiment of this invention, white luminous assembly comprises a cathode layer, an anode layer and an organic luminous layer, and wherein organic luminous layer is between cathode layer and anode layer.In one embodiment, organic luminous layer is formed by multilayer luminous organic material institute storehouse.In another embodiment, organic luminous layer comprises [8-hydroxyquinoline aluminum: rubrene] (tris-(8-hydroxy quinolinol) aluminum:rubrene, Alq
3: rubrene), the triaromatic amine analog derivative (α-naphylhenyldiamine, NPB) or oxine aluminium.
In one embodiment of this invention, have first gap between first substrate in the echo area and second substrate, have second gap between first substrate in penetrating region and second substrate, and second gap is about 2 times of first gap.
Semi-penetrating and semi-reflective liquid crystal display panel of the present invention has luminescence component, required light source when it can provide penetrating region to show.In addition, echo area and penetrating region carry out the demonstration of picture towards homonymy not respectively, so that semi-penetrating and semi-reflective liquid crystal display panel has the function of double-sided display.
For above-mentioned feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Figure 1A illustrates the partial cutaway schematic of the semi-penetrating and semi-reflective liquid crystal display panel of first embodiment of the invention;
Figure 1B illustrates the partial circuit diagram of first substrate of the semi-penetrating and semi-reflective liquid crystal display panel of first embodiment of the invention;
Fig. 1 C illustrates the partial circuit diagram of second substrate of the semi-penetrating and semi-reflective liquid crystal display panel of first embodiment of the invention;
Fig. 2 A to Fig. 2 F illustrates the making flow process diagrammatic cross-section of first substrate of the semi-penetrating and semi-reflective liquid crystal display panel of first embodiment of the invention;
Fig. 3 A to Fig. 3 E illustrates the making flow process diagrammatic cross-section of second substrate of the semi-penetrating and semi-reflective liquid crystal display panel of first embodiment of the invention;
Fig. 4 A illustrates the partial cutaway schematic of the semi-penetrating and semi-reflective liquid crystal display panel of second embodiment of the invention;
Fig. 4 B illustrates the partial circuit diagram of first substrate of the semi-penetrating and semi-reflective liquid crystal display panel of second embodiment of the invention.
[primary clustering symbol description]
100,600: semi-penetrating and semi-reflective liquid crystal display panel
200,700: the first substrates
210,710: pixel region
212,312: the echo area
214,314,714,814: penetrating region
216,716: sweep trace
218: data line
220,720: switch module
220C, 720C: channel region
200C ': accurate channel region
220D, 720D: drain electrode
220G, 720G: grid
220S, 720S: source electrode
222,722a, 722b: pixel electrode
224: flatness layer
224P: raised design
226: the reflection horizon
240: following light polarizing film
300,800: the second substrates
310,810: the unit area
320: signal wire
330,830a, 830b: electrode layer
340: go up light polarizing film
350: light shield layer
360: color filter patterns
400: luminescence component
410: cathode layer
420: anode layer
430: organic luminous layer
440: interior light polarizing film
500: liquid crystal layer
AS: amorphous silicon layer pattern
C
M1: bottom electrode
C
M2: top electrode
H1, H2: opening
G1: first gap
G2: second gap
GI: gate insulation layer
C
St: storage capacitors
R, R ', T, T ': observer
RL, RL ', TL, TL ': light source
Embodiment
[first embodiment]
Figure 1A illustrates the partial cutaway schematic of the semi-penetrating and semi-reflective liquid crystal display panel of first embodiment of the invention, and wherein Figure 1A only illustrates a pixel region 210 and with convenience present embodiment is described with the unit area 310 of corresponding this pixel region 210.Figure 1B illustrates the partial circuit diagram of first substrate of the semi-penetrating and semi-reflective liquid crystal display panel of first embodiment of the invention, and Fig. 1 C illustrates the partial circuit diagram of second substrate of the semi-penetrating and semi-reflective liquid crystal display panel of first embodiment of the invention.Please be simultaneously with reference to Figure 1A, Figure 1B and Fig. 1 C, the semi-penetrating and semi-reflective liquid crystal display panel 100 of present embodiment, it comprises first substrate 200, second substrate 300 and liquid crystal layer 500.Second substrate 300 is positioned at the subtend of first substrate 200, and liquid crystal layer 500 is between first substrate 200 and second substrate 300.
Shown in Figure 1A and Figure 1B, a plurality of pixel regions 210 are set on first substrate 200, each pixel region 210 has an echo area 212 and a penetrating region 214, and dispose one scan line 216, a data line 218, a switch module 220 and a pixel electrode 222 in each pixel region 210 in addition, wherein switch module 220 is arranged in echo area 212, and electrically connect with sweep trace 216 and data line 218, pixel electrode 222 then is arranged in echo area 212 and penetrating region 214, and electrically connects with switch module 220.In the present embodiment, switch module 220 can be made of grid 220G, gate insulation layer GI, channel region 220C, source electrode 220S and drain electrode 220D, wherein grid 220G and sweep trace 216 can be formed by first conductive layer, and source electrode 220S, drain electrode 220D and data line 218 can be formed by second conductive layer.
Shown in Figure 1A and Fig. 1 C, second substrate 300 has the unit area 310 in a plurality of luminescence components 400, many signal line 320 and a plurality of respective pixel zone 210.Each unit area 310 has an echo area 312 and a penetrating region 314, and dispose a luminescence component 400 and signal wire 320 in each unit area 310 in addition, wherein luminescence component 400 is arranged in the penetrating region 314, signal wire 320 electrically connects with luminescence component 400, and signal wire 320 can be the Vdd signal wire, and luminescence component 400 can be white luminous assembly.
On the practice, semi-penetrating and semi-reflective liquid crystal display panel 100 can further be provided with an electrode layer 330 in each unit area 310 on second substrate 300.When sweep trace 216 and data line 218 transmitted sweep signal and data-signal with driving switch assembly 220 respectively, pixel electrode 222 can obtain the data-signal that data line 218 is transmitted.At this moment, the pressure reduction between pixel electrode 222 and the electrode layer 330 can produce field effect, and this field effect can change the arrangement mode of the liquid crystal molecule in the liquid crystal layer 500, so that semi-penetrating and semi-reflective liquid crystal display panel 100 shows.In addition, when having pressure reduction between pixel electrode 222 and the electrode layer 330, pixel electrode 222, liquid crystal layer 500 can constitute a liquid crystal capacitance with the capacity effect that electrode layer 330 is produced.
Because signal wire 320 driven for emitting lights assemblies 400 can make luminescence component 400 send white light, so required light source TL when luminescence component 400 can provide penetrating region 214,314 to show makes observer T can watch the shown picture of semi-penetrating and semi-reflective liquid crystal display panel 100.Meaning promptly, under the situation of backlight module that need not to arrange in pairs or groups, penetrating region 214,314 gets final product display frame.On the other hand, in the echo area 212 of present embodiment, semi-penetrating and semi-reflective liquid crystal display panel 100 can further comprise a reflection horizon 226, in order to reflect extraneous surround lighting.In other words, but required light source RL when extraneous surround lighting cremasteric reflex district 212,312 shows makes observer R can watch the shown picture of semi-penetrating and semi-reflective liquid crystal display panel 100.Meaning promptly, under the situation of backlight module that need not to arrange in pairs or groups, echo area 212,312 gets final product display frame.
From the above, the semi-penetrating and semi-reflective liquid crystal display panel 100 of present embodiment can provide double-sided display.In addition, pixel electrode 222 is arranged in echo area 212 and the penetrating region 214, and therefore, echo area 212,312 and penetrating region 214,314 shown respectively pictures are essentially identical picture.Yet, desire to make echo area 212,312 and penetrating region 214,314 shown pictures to have identical display quality, the optical path difference of the light that light source RL and light source TL send respectively (optical path difference) should be zero in theory.In general, gap between first, second substrate 200,300 and down light polarizing film 240 (being arranged on first substrate 200), go up the collocation between the light polarizing film 340 (being arranged on second substrate 300), can determine the optical length (optical path length) of light.
In detail, shown in Figure 1A, have first clearance G 1 between first substrate 200 in the echo area 212,312 and second substrate 300, and have second clearance G 2 between first substrate 200 in the penetrating region 214,314 and second substrate 300.Owing to enter echo area 212,312 behind light penetration second substrate 300 of light source RL, can take place to penetrate second substrate 300 again after the reflexs with reflection horizon 226, so the light of light source RL can be through second substrate 300 twice.That is to say that the light of light source RL can be by last light polarizing film 340 twice.On the other hand, in penetrating region 214,314, the luminescence component 400 of the light of light source TL on second substrate 300 penetrates, again through penetrating first substrate 200 after the path that is essentially second clearance G 2.Therefore, light polarizing film 240 once under the light of light source TL can pass through.
From the above, when second clearance G 2 was essentially the twice of first clearance G 1, light equaled the optical length of light by the liquid crystal layer 500 of echo area 212,312 in fact by the optical length of the liquid crystal layer 500 of penetrating region 214,314.Yet the light of the light source RL in the echo area 212,312 is by last light polarizing film 340 twice, but the light of the light source TL in the penetrating region 214,314 is only by descending light polarizing film 240 once.On the practice, light polarizing film 440 in can be set in penetrating region 214,314, with the optical path difference of the light of further compensation two light source RL, TL.In the present embodiment, interior light polarizing film 440 is positioned on second substrate 300, and covers luminescence component 400.
Generally speaking, in order to promote the display quality of semi-penetrating and semi-reflective liquid crystal display panel 100, can further in dot structure 210, dispose storage capacitors C
StTo keep the pressure reduction between pixel electrode 222 and the electrode layer 330.For instance, the storage capacitors C of present embodiment
StBe by bottom electrode C
M1, top electrode C
M2Be located in upper and lower electrode C
M2, C
M1Between gate insulation layer GI constitute.Certainly, storage capacitors C
StCan also be other kenel, the knowledgeable that knows usually in this field ought to know, in this not statement one by one.
On the practice, semi-penetrating and semi-reflective liquid crystal display panel 100 can further be provided with a flatness layer 224 in each pixel region 210 on first substrate 200, and this flatness layer 224 covers pixel region 210.In more detail, flatness layer 224 covers on the echo area 212, but exposes penetrating region 214, and present embodiment is to the moderately adjustment of thickness do of flatness layer 224, so that second clearance G 2 is essentially 2 times of first clearance G 1.Thus, just can flatness layer 224 local surfaces above a reflection horizon 226 is set, in order to the light of reflection source RL.In general, in order to promote the display effect of semi-penetrating and semi-reflective liquid crystal display panel 100, can form a plurality of raised design 224P in the local surfaces of flatness layer 224.
Please need to prove that at this in the present embodiment, pixel electrode 222 covers on the reflection horizon 226 simultaneously with reference to Figure 1A and Figure 1B.In order to make pixel electrode 222 be obtained the data-signal that data line 218 is transmitted, so pixel electrode 222 can be by contact drain electrode 220D to be electrically connected to data line 218.In addition, pixel electrode 222 also can be by contact storage capacitors C
StTop electrode C
M2To be electrically connected to data line 218.In other embodiments, above-mentioned pixel electrode 222 can be selected a use with the mode that data line 218 electrically connects.Yet the present invention is not intended to limit the above-mentioned sole mode of pixel electrode 222 with data line 218 electric connections that be, alternate manner ought to be those skilled in the art's category to understand, in this statement one by one.
Above-mentioned is the general configuration of the semi-penetrating and semi-reflective liquid crystal display panel 100 of present embodiment, and next, the making flow process of utilizing semi-penetrating and semi-reflective liquid crystal display panel 100 is with its thin portion structure of further understanding.Fig. 2 A to Fig. 2 F illustrates the making flow process diagrammatic cross-section of first substrate of the semi-penetrating and semi-reflective liquid crystal display panel of first embodiment of the invention.Wherein, Fig. 2 A to Fig. 2 F only illustrates a pixel region 210, and pixel region 210 can be divided into echo area 212 and penetrating region 214.Please, on first substrate 200, form first conductive layer earlier simultaneously with reference to Figure 1B and Fig. 2 A, and to first conductive layer patternization, to form sweep trace 216, grid 220G and storage capacitors C
StBottom electrode C
M1Wherein, grid 220G is arranged in echo area 212.
Moreover, please refer to Fig. 2 B, on first substrate 200, form gate insulation layer GI and amorphous silicon layer in regular turn, and to the amorphous silicon layer patterning, to form a plurality of amorphous silicon layer pattern AS (it is example that Fig. 2 B only illustrates).Wherein, the accurate channel region 200C ' of grid 220G top promptly is the position that forms channel region 200C in the successive process steps.Yet, in other embodiments, also can form the making of channel region 200C in this step, the present invention is the formation step of limiting channel district 200C not.
Then, please on first substrate 200, form second conductive layer simultaneously with reference to Figure 1B and Fig. 2 C, and to second conductive layer patternization, to form data line 218, source electrode 220S, drain electrode 220D and storage capacitors C
StTop electrode C
M2In the present embodiment, can when forming source electrode 220S, drain electrode 220D, form channel region 200C in the lump.Yet the method and the step that form channel region 200C are not limited to this.So far above-mentioned, the switch module 220 and the storage capacitors C of present embodiment
StRoughly complete.Wherein, the grid 220G of switch module 220 and source electrode 220S can electrically connect with sweep trace 216 and data line 218 respectively, and channel region 200C then can be used as the electronics channel between source electrode 220S and the drain electrode 220D.
Afterwards, please refer to Fig. 2 D, on first substrate 200, form the planarization material layer, and, have the flatness layer 224 of a plurality of raised design 224P with formation one in the echo area 212 of pixel region 210 the planarization material layer patternization.That is to say that the penetrating region 214 of present embodiment there is no flatness layer 224 is set.Yet, before forming flatness layer 224, optionally on first substrate 200, form the protective material layer, and to the protective material layer patternization, to form protective seam PV, with cover data line (not illustrating), source electrode 220S, drain electrode 220D, storage capacitors C
StTop electrode C
M2With gate insulation layer GI.Certainly, the visual actual conditions of deviser decide the principle of patterning protective material layer, the present invention and indefinite mentioned above principle.
Hold above-mentionedly, patterning planarization material layer 224 is to expose the top electrode C of part drain electrode 220D and storage capacitors
M2Be principle, this measure can be used as the preparation of successive process, so that drain electrode 220D and top electrode C
M2Be electrically connected to pixel electrode 222.For instance, the flatness layer 224 of present embodiment can have opening H1 and opening H2 to expose part drain electrode 220D and top electrode C respectively
M2, and pixel electrode 222 just can by opening H1 and opening H2 respectively with drain electrode 220D and top electrode C
M2Electrically connect.Certainly, the visual actual conditions of deviser decide the principle of patterning planarization material layer, the present invention and indefinite mentioned above principle.In addition, the principle of the principle of the patterning protective material layer of present embodiment and patterning planarization material layer is similar.
Then, please refer to Fig. 2 E, on first substrate 200, form layer of reflective material, and to the layer of reflective material patterning, form a reflection horizon 226 with top in the local surfaces of flatness layer 224.Need to prove that at this its material behavior is depended in configuration in reflection horizon 226.Say further whether the material in reflection horizon 226 has insulation characterisitic, can influence it and be arranged at position on the flatness layer 224.For example, in the present embodiment, when reflection horizon 226 belongs to insulation during material, if reflection horizon 226 covers opening H1, H2 fully, then can cause pixel electrode 222 can't with drain electrode 220D or top electrode C
M2Contact.Therefore, the mode of opening H1, H2 can be taked to expose in the reflection horizon 226 with insulation characterisitic, is disposed on the local surfaces of flatness layer 224, shown in Fig. 2 E.Otherwise when reflection horizon 226 did not belong to the insulation material, the configuration in reflection horizon 226 can have bigger elasticity, and in other words, reflection horizon 226 can cover opening H1, H2, also can expose opening H1, H2, and end relies it whether to have insulation characterisitic and decides.Yet the configuration in reflection horizon 226 still need be decided with the material of relevant rete on the topological design of product, anticipates promptly, and indefinite of the present invention is above-mentioned to be the unique spline attitude in reflection horizon 226.
Then, please refer to Fig. 2 F, on first substrate 200, form pixel electrode 222.In the present embodiment, pixel electrode 222 can see through opening H1 and opening H2 and drain electrode 220D and top electrode C respectively
M2Contact.So far above-mentioned, the member on first substrate 200 general arrangement is finished.
Fig. 3 A to Fig. 3 E illustrates the making flow process sectional view of second substrate of the semi-penetrating and semi-reflective liquid crystal display panel of the first embodiment of the present invention.Wherein, Fig. 3 A to Fig. 3 E only illustrates a unit area 310, and unit area 310 can be divided into echo area 312 and penetrating region 314.Please earlier with reference to Fig. 1 C and Fig. 3 A, form luminescence component 400 on second substrate 300, wherein luminescence component 400 comprises a cathode layer 410, the organic luminous layer 430 of an anode layer 420 and between cathode layer 410 and anode layer 420.
Hold above-mentionedly, the making step of the luminescence component 400 in the present embodiment can form cathode layer 410, organic luminous layer 430 and anode layer 420 in regular turn on second substrate 300.Specifically, when signal wire 320 driven for emitting lights assemblies 400, from the electronics of cathode layer 410 and from the electric hole of anode layer 420 can be in organic luminous layer 430 in conjunction with and luminous.On the practice, can adopt conductive material (as aluminium Al) and transparent conductive material (as indium tin oxide ITO, indium-zinc oxide IZO) to make cathode layer 410 and anode layer 420 respectively.In the present embodiment, organic luminous layer 430 can be a kind of white luminous layer that is formed by plural layer luminous organic material institute storehouse, so that luminescence component 400 sends white light.The material of organic luminous layer 430 comprises: [8-hydroxyquinoline aluminum: rubrene] (tris-(8-hydroxyquinolinol) aluminum:rubrene, the Alq that can inspire ruddiness
3: rubrene), (α-naphylhenyldiamine NPB) maybe can inspire the oxine aluminium of green glow can to inspire the triaromatic amine analog derivative of blue light.
Yet the deviser ought to look actual conditions and select for use suitable material to make cathode layer 410, anode layer 420 and organic luminous layer 430 to meet the specification of product, and the present invention is not intended to limit above-mentioned material.
Moreover, please refer to Fig. 3 B, light polarizing film 440 on second substrate 300, forming, wherein interior light polarizing film 440 is arranged in each unit area 310 of second substrate 300, and covers luminescence component 400.
Then, please in regular turn with reference to Fig. 3 C to Fig. 3 E, in the present embodiment, on second substrate 300, form light shield layer 350, color filter patterns 360 and electrode layer 330 in regular turn.On light shield layer 350 was positioned at around each unit area 310, color filter patterns 360 was positioned at each unit area 310 with electrode layer 330.Wherein, color filter patterns 360 makes semi-penetrating and semi-reflective liquid crystal display panel 100 be suitable for the display color picture, 350 colour purities that can improve the display frame of semi-penetrating and semi-reflective liquid crystal display panel 100 of light shield layer.Yet the present invention does not limit the kenel of above-mentioned light shield layer 350 and color filter patterns 360, does not limit the formation order of light shield layer 350 and color filter patterns 360 yet.So far above-mentioned, the member on second substrate 300 general arrangement is finished.
Please be simultaneously with reference to Figure 1A, Fig. 2 F and Fig. 3 E, second substrate 300 among first substrate 200 and Fig. 3 E among Fig. 2 F is provided respectively, upright to first substrate 200 and 300 groups of second substrates again.The right time is provided with down light polarizing film 240 on the surface away from liquid crystal layer 500 of first substrate 200, on the surface away from liquid crystal layer 500 of second substrate 300 light polarizing film 340 is set.So far above-mentioned, the semi-penetrating and semi-reflective liquid crystal display panel 100 of present embodiment is roughly finished.
[second embodiment]
Fig. 4 A illustrates the partial cutaway schematic of the semi-penetrating and semi-reflective liquid crystal display panel of second embodiment of the invention, and wherein Fig. 4 A only illustrates a pixel region 710 and with convenience present embodiment is described with the unit area 810 of corresponding this pixel region 710.Fig. 4 B illustrates the partial circuit diagram of first substrate of the semi-penetrating and semi-reflective liquid crystal display panel of second embodiment of the invention.Please refer to Fig. 4 A and Fig. 4 B, the semi-penetrating and semi-reflective liquid crystal display panel 600 of present embodiment is similar to the semi-penetrating and semi-reflective liquid crystal display panel 100 of first embodiment, wherein same or analogous label is represented same or analogous member, in this not repeat specification.Each pixel region 710 of the semi-penetrating and semi-reflective liquid crystal display panel 600 of present embodiment can further comprise sweep trace 716, switch module 720 and pixel electrode 722b, and in each unit area 810 electrode layer 830b can be set further.
Hold above-mentionedly, on first substrate 700 of present embodiment, sweep trace 716 parallel scan lines 216 in fact is provided with.In addition, switch module 720 is arranged in the penetrating region 714 with pixel electrode 722b, wherein switch module 720 electrically connects with sweep trace 716, data line 218 and pixel electrode 722b, and switch module 720 can be made of grid 720G, gate insulation layer GI, channel region 720C, source electrode 720S and drain electrode 720D.Grid 720G and sweep trace 716 can be formed by first conductive layer, and source electrode 720S and drain electrode 720D can be formed by second conductive layer.
Please continue with reference to Fig. 4 A and Fig. 4 B, on second substrate 800 of present embodiment, electrode layer 830a is arranged in the echo area 312, and corresponding setting with pixel electrode 722a.On the other hand, electrode layer 830b is arranged in the penetrating region 814, and corresponding setting with pixel electrode 722b.When having pressure reduction between pixel electrode 722b and the electrode layer 830b, pixel electrode 722b, liquid crystal layer 500 can constitute a liquid crystal capacitance with the capacity effect that electrode layer 830b is produced.In addition, in order to promote the display quality of penetrating region 714, can further dispose storage capacitors C
St' to keep the pressure reduction between pixel electrode 722b and the electrode layer 830b.
From the above, the semi-penetrating and semi-reflective liquid crystal display panel 600 of present embodiment has the function of double-sided display equally.In detail, the luminescence component 400 of present embodiment is arranged in the penetrating region 814, and it can be white luminous assembly.In addition, required light source TL ' when luminescence component 400 provides penetrating region 714,814 to show makes observer T ' can watch the shown picture of semi-penetrating and semi-reflective liquid crystal display panel 600.Therefore, the penetrating region 714,814 of semi-penetrating and semi-reflective liquid crystal display panel 600 gets final product display frame under the situation of backlight module that need not to arrange in pairs or groups.On the other hand, but required light source RL ' when extraneous surround lighting cremasteric reflex district 212,312 shows makes observer R ' can watch the shown picture of semi-penetrating and semi-reflective liquid crystal display panel 600.Therefore, the echo area 212,312 of semi-penetrating and semi-reflective liquid crystal display panel 600 gets final product display frame under the situation of backlight module that need not to arrange in pairs or groups.
Yet pixel electrode 722a and switch module 220 electrically connect and are arranged in the echo area 212, and pixel electrode 722b and switch module 720 electrically connect and be arranged in the penetrating region 714.Therefore, sweep trace 216 and sweep trace 716 can drive the switch module 720 in switch module 220 and the penetrating region 714 in the echo area 212 respectively, and making echo area 212,312 and penetrating region 714,814 shown pictures can be picture inequality.
In sum, dispose luminescence component in the penetrating region of semi-penetrating and semi-reflective liquid crystal display panel of the present invention, light source required when its autoluminescence characteristic can provide penetrating region to show is to reach the function of double-sided display.Adopt two display panels to reach the effect of double-sided display and the bigger problem of the thickness of deriving adopts the display of semi-penetrating and semi-reflective liquid crystal display panel of the present invention to have more frivolous characteristic compared to prior art.In addition, semi-penetrating and semi-reflective liquid crystal display panel of the present invention need not to rely on backlight module light source is provided, and can avoid the light source of backlight module that the energy dissipation of light source to penetrating region caused only is provided.It is identical or different display frame that semi-penetrating and semi-reflective liquid crystal display panel of the present invention can decide the display frame of its both sides by a switch module or the relevant layouts (layout) of two switch modules collocation, makes its application more extensive with the display with double faces in response to various kenels.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. a semi-penetrating and semi-reflective liquid crystal display panel is characterized in that, comprising:
One first substrate has a plurality of pixel regions on this first substrate, and each pixel region has an echo area and a penetrating region, and comprises in each pixel region and disposing:
One first sweep trace and a data line;
One first switch module is positioned at this echo area, and electrically connects with this first sweep trace and this data line; And
One pixel electrode is positioned at this echo area and this penetrating region;
One second substrate is positioned at the subtend of this first substrate, wherein has a plurality of unit areas of corresponding those pixel regions on this second substrate, comprises in each unit area being provided with:
One luminescence component, it is provided with this penetrating region that should first substrate, and this luminescence component comprises a cathode layer, the organic luminous layer of an anode layer and between cathode layer and anode layer; And
One signal wire, itself and this luminescence component electrically connects; And
One liquid crystal layer is between this first substrate and this second substrate.
2. semi-penetrating and semi-reflective liquid crystal display panel as claimed in claim 1 is characterized in that, light polarizing film in is set in penetrating region, and light polarizing film is positioned on this second substrate in this, and covers this luminescence component.
3. semi-penetrating and semi-reflective liquid crystal display panel as claimed in claim 1 is characterized in that, this organic luminous layer is formed by multilayer luminous organic material institute storehouse.
4. a semi-penetrating and semi-reflective liquid crystal display panel is characterized in that, comprising:
One first substrate is provided with a plurality of pixel regions on this first substrate, and each pixel region has an echo area and a penetrating region, and each pixel region comprises: an one scan line and a data line; One switch module, itself and this sweep trace and this data line electrically connect; And a pixel electrode, itself and this switch module electrically connects;
One second substrate, this second substrate has a plurality of unit areas, and each unit area has an echo area and a penetrating region, wherein, the echo area of first substrate and the mutual corresponding setting in the echo area of second substrate, the corresponding setting mutually of the transmission area of the transmission area of first substrate and second substrate;
A plurality of white luminous assemblies are separately positioned in this penetrating region of this second substrate, and each those luminescence component comprises a cathode layer, the organic luminous layer of an anode layer and between cathode layer and anode layer; And
One liquid crystal layer is between this first substrate and this second substrate.
5. semi-penetrating and semi-reflective liquid crystal display panel as claimed in claim 4, it is characterized in that other comprises a light polarizing film and an electrode layer in one, this interior light polarizing film is arranged on this second substrate and is positioned at this penetrating region, and cover this luminescence component, this electrode layer then is arranged on this second substrate.
6. semi-penetrating and semi-reflective liquid crystal display panel as claimed in claim 4, it is characterized in that other comprises one first electrode layer and a second electrode lay, be arranged on this second substrate, and this first electrode layer is arranged in this echo area, and this second electrode lay is arranged in this penetrating region.
7. semi-penetrating and semi-reflective liquid crystal display panel as claimed in claim 4 is characterized in that,
This sweep trace comprises one first sweep trace and one second sweep trace; This switch module comprises one first switch module and a second switch assembly, and this pixel electrode comprises one first pixel electrode and one second pixel electrode; Wherein,
This first switch module correspondence is arranged in this echo area of this second substrate, and electrically connects with this first sweep trace and this data line;
This first pixel electrode correspondence is arranged in this echo area of this second substrate, and electrically connects with this first switch module;
Parallel this first sweep trace setting of this second sweep trace;
This second switch assembly correspondence is arranged in this penetrating region of this second substrate, and electrically connects with this second sweep trace and this data line;
This second pixel electrode correspondence is arranged in this penetrating region of this second substrate, and electrically connects with this second switch assembly.
8. semi-penetrating and semi-reflective liquid crystal display panel as claimed in claim 4, it is characterized in that, has one first gap between this first substrate in this echo area and this second substrate, have one second gap between this first substrate in this penetrating region and this second substrate, and this second gap is 2 times of this first gap.
9. semi-penetrating and semi-reflective liquid crystal display panel as claimed in claim 4, it is characterized in that, other comprises a flatness layer and a reflection horizon, this flatness layer is arranged on this first substrate, cover those pixel regions, and this flatness layer covers on this echo area and exposes this penetrating region, and this flatness layer local surfaces has a plurality of raised designs, and this reflection horizon then covers on the local surfaces of this flatness layer.
10. semi-penetrating and semi-reflective liquid crystal display panel as claimed in claim 4 is characterized in that this organic luminous layer comprises Alq
3: rubrene, triaromatic amine analog derivative or oxine aluminium.
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| CN200810145896A CN100578331C (en) | 2008-08-18 | 2008-08-18 | Half-penetration and half-reflecting type liquid crystal display panel |
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| CN200810145896A CN100578331C (en) | 2008-08-18 | 2008-08-18 | Half-penetration and half-reflecting type liquid crystal display panel |
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| CN100578331C true CN100578331C (en) | 2010-01-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102023435B (en) * | 2009-09-23 | 2013-01-02 | 北京京东方光电科技有限公司 | Liquid crystal display and manufacturing method thereof |
| CN105911742A (en) * | 2016-06-15 | 2016-08-31 | 苏州众显电子科技有限公司 | Transflective liquid crystal display device |
| CN107167943B (en) * | 2017-07-20 | 2020-08-14 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN107357076A (en) * | 2017-08-16 | 2017-11-17 | 深圳市华星光电半导体显示技术有限公司 | Transmitting/reflecting LCD and preparation method thereof |
| CN107589610B (en) * | 2017-09-29 | 2020-07-14 | 上海天马微电子有限公司 | Liquid crystal display panel and display device |
| US10656461B2 (en) * | 2017-11-13 | 2020-05-19 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Display substrate, display panel and display apparatus |
| CN107844005B (en) * | 2017-11-13 | 2020-07-31 | 武汉华星光电半导体显示技术有限公司 | Display substrate, display panel and display device |
| US20220397784A1 (en) * | 2020-12-25 | 2022-12-15 | Beijing Boe Display Technology Co., Ltd. | Display panel, method for manufacturing display panel, and display device |
| CN113534520B (en) * | 2021-07-30 | 2024-01-12 | 惠科股份有限公司 | Double-sided display panel, display device and driving method |
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