CN104020602A

CN104020602A - Display device

Info

Publication number: CN104020602A
Application number: CN201410249889.7A
Authority: CN
Inventors: 蒋顺; 孙润光
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-06-09
Filing date: 2014-06-09
Publication date: 2014-09-03
Anticipated expiration: 2034-06-09
Also published as: CN104020602B

Abstract

The invention provides a display device which can be freely used indoors and outdoors. When the display device is used indoors, OLED display plays a dominant role, colors are bright, and the display effect is good. When the display device is used outdoors, a total reflection type liquid crystal display mode plays a dominant role. Thus, the display device can be freely used indoors and outdoors.

Description

A kind of display device

Technical field

The present invention is relevant for the equal disposable display device in a kind of indoor and open air.

Background technology

AMOLED display technique is because of its high chroma territory, high response speed, and the feature such as more frivolous, is just replacing LCD technology at present and is becoming gradually the strong rival in display technique of future generation field.

The reflectivity of the cover-plate glass of current most mobile display device is higher, and under environment, the contrast effectively showing is very low, under environment out of doors, cannot directly freely use out of doors.

Half-reflection and half-transmission LCD can be used with indoor demonstration out of doors, but because its reflection part branch takies aperture opening ratio, power dissipation ratio is larger.In addition, half-reflection and half-transmission pattern mostly adopts VA pattern, and more difficult realization on high PPI product adds that yield is low, complex process, and high in cost of production reason, this technology does not become main flow.

Summary of the invention

The invention provides a kind of display device that LCD is combined with OLED; Infrabasal plate is oled display substrate, and its structure is emission structure at top, and the bottom electrode of OLED has reflective metals, upwards luminous during the work of OLED pixel; Upper substrate is LCD pixel cell, and the inside surface of upper and lower base plate has at least a side to have both alignment layers, has liquid crystal layer between upper and lower base plate, when the orientation of liquid crystal is subject to both alignment layers and LCD pixel cell electric field, controls.When indoor mode, the work of OLED device, the light that the light sending is unpolarized state, liquid crystal layer is on the not impact of the show state of OLED.When outdoor pattern, surround lighting is introduced into polaroid, becomes polarized light, then pass through liquid crystal layer, after metallic reflection, again through liquid crystal layer, polaroid analyzing, can control the orientation of liquid crystal by the voltage changing in LCD pixel, thereby determine the final state that arrives polaroid analyzing.Realizing reflective-mode shows.

Accompanying drawing explanation:

Accompanying drawing 1 is structural representation of the present invention.

Accompanying drawing 2 is a specific embodiment of the present invention.

Accompanying drawing 3 is the detailed structure of the LCD substrate of a specific embodiment of the present invention.

Embodiment

What introduce below is the some in a plurality of embodiment of the present invention, aims to provide basic understanding of the present invention, is not intended to confirm key of the present invention or decisive key element or limits claimed scope.According to technical scheme of the present invention, do not changing under connotation of the present invention, can mutually replace and obtain other implementation.In the accompanying drawings, for the sake of clarity, exaggerated the thickness in layer and region.The all a plurality of parts shown in figure are not described yet.The disclosure that a plurality of parts in accompanying drawing can be realized for those of ordinary skills.The definition of the odd even in embodiment is intended to classify for the pixel to displaying contents, and the definition of odd even can be changed mutually.In addition, directional terminology (as " on ", D score, " laterally ", " longitudinally " etc.) be used for describing various embodiment and represent the direction shown in accompanying drawing, for the description of relativity, rather than the direction of any embodiment to be limited to concrete direction.

One embodiment of the present of invention, as shown in Figure 2,, there is the staggered picture element matrix of a plurality of ranks in the top emission mode LTPS AMOLED substrate 201 that is positioned at downside, has LTPS device circuitry 202 in pixel on AMOLED substrate, comprise reflective metals 203, anode 204, OLED device 206, pixel defining layer 205, negative electrode 207, there is thin-film encapsulation layer 208 in upper surface.

AMLCD substrate 214, on AMLCD substrate, exist with AMOLED on the staggered picture element matrix of ranks one to one.On matrix, there is LTPS image element circuit 213, common electrode 211 and pixel electrode 212, there is alignment film 210 in image element circuit and show electrode surface.The detailed structure of display circuit as shown in Figure 3, on substrate 301 surfaces, there is the intrinsic polysilicon 310 of the channel structure active layer of transistor device, gate insulation layer 309, the polysilicon layer 311 of the doping of grid circuit, the BM layer 312 of shading and insulating effect, color filter film 302, M1 metal 307 is connected with intrinsic polysilicon layer 310 with grid insulating layer through hole by BM layer, M1 metal level is connected with doped polysilicon layer 311 by BM layer via hole, M2 metal level 306 is by insulation course OC1(303) be connected with M1, pixel electrode with common electrode by insulation course OC2(304) be connected with M2 metal.

There is alignment film 210 in LCD base lower surface, between AMOLED substrate and AMLCD substrate, has liquid crystal layer 209.While there is voltage between two electrodes, can form transverse electric field.Control the deflection state of liquid crystal in liquid crystal cell.There is polaroid in the upper surface of AMLCD substrate.

Other embodiment of the present invention, oled substrate can be PMOLED, LCD substrate can be PMLCD, and LCD base lower surface exists alignment film, and liquid crystal is FFS pattern or VA pattern, on oled substrate, there is the staggered picture element matrix of a plurality of ranks, in pixel, there is reflective metals, anode, OLED device, negative electrode, upper surface is without thin-film encapsulation layer.On LCD substrate, exist with OLED on the staggered picture element matrix of ranks one to one.In pixel, be not with color filter film, between oled substrate and LCD substrate, have liquid crystal layer.Polaroid can be with viewing angle compensation function.

Claims

1. a display device, comprises top emission mode oled substrate, LCD pixel TFT substrate, and, between two substrates, there is the liquid crystal cell display unit that is subject to LCD pixel substrate unit electric field controls in polaroid.

2. display device according to claim 1, is characterized in that: display device is the outdoor environment light time by day, and reflective LCD Presentation Function is opened, and at display device, in the indoor environment light time, OLED Presentation Function is opened.

3. display device claimed in claim 1, is characterized in that: liquid crystal display pattern is reflective IPS pattern (comprising reflective FFS pattern).

4. display device claimed in claim 1, is characterized in that: described liquid crystal cell display unit in oled substrate side without both alignment layers.

5. display device claimed in claim 1, is characterized in that: on described oled substrate, have thin-film encapsulation layer.

6. thin-film encapsulation layer claimed in claim 5, is characterized in that, can be organic layer, also can be inorganic layer, also can be organic and inorganic staggered sandwich construction.

7. display device claimed in claim 1, is characterized in that: chromatic colour filter coating on the dot structure of LCD.

8. display device claimed in claim 1, is characterized in that: OLED is corresponding one by one with LCD device pixel.

9. display device claimed in claim 1, is characterized in that: described polaroid is with viewing angle compensation function.

10. display device claimed in claim 1, is characterized in that: described polaroid is with phase delay function.

11. display devices claimed in claim 1, is characterized in that: described LCD substrate, is BM On Array structure, and between metal wire and substrate, has the shading of BM layer.