CN113921575B - Double-sided luminous display screen and display device - Google Patents
Double-sided luminous display screen and display device Download PDFInfo
- Publication number
- CN113921575B CN113921575B CN202111164574.9A CN202111164574A CN113921575B CN 113921575 B CN113921575 B CN 113921575B CN 202111164574 A CN202111164574 A CN 202111164574A CN 113921575 B CN113921575 B CN 113921575B
- Authority
- CN
- China
- Prior art keywords
- light emitting
- display
- hollow
- display substrate
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/805—Electrodes
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The application discloses a double-sided light-emitting display screen and a display device, wherein the double-sided light-emitting display screen comprises a first display substrate and a second display substrate which are arranged oppositely, and the first display substrate and the second display substrate are both organic light-emitting display substrates; the first display substrate comprises a first light emitting area and a first hollow-out area which are adjacently arranged, the first light emitting area corresponds to the second hollow-out area, and the first hollow-out area corresponds to the second light emitting area. The two-sided luminous display screen in this application is through setting up two organic light emitting display substrate subtends for the light that first display substrate sent shows through the second fretwork district, and the light that the second display substrate sent shows through first fretwork district, thereby realizes two-sided luminous demonstration.
Description
Technical Field
The application relates to the technical field of display, in particular to a double-sided light-emitting display screen and a display device.
Background
The reflective display screen is divided into a passive display screen and an active display screen, taking a liquid crystal display screen as an example, the passive display screen is that a reflective material is arranged below a liquid crystal panel to replace a luminescent material of a transmission display screen, and when the ambient light is sufficient, the passive display screen utilizes the light reflected by a mirror surface to illuminate the screen. However, it cannot be clearly displayed in a dark place because the weak ambient light is not sufficiently reflected to illuminate the screen, and thus the display screen which can only passively receive the reflected ambient light is a passive reflective liquid crystal screen. The active display screen is equivalent to adding a light source at the top of the passive display screen as illumination, so that a clear and bright screen can be seen by turning on an illuminating lamp even when the ambient light is insufficient. The reflective liquid crystal screen has strong dependence on ambient light.
An OLED (Organic Light-Emitting Diode) display screen also belongs to an active Light-Emitting display screen, but the OLED display screen directly manufactures a Light-Emitting device on a glass substrate, so that the whole thickness is thinner and the Light-Emitting uniformity is higher. At present, most of organic light emitting display screens can only display on a single side, and double-sided display screens are needed in some occasions, so how to manufacture double-sided display screens by using the organic light emitting display screens is an important research direction.
Disclosure of Invention
The application aims to provide a double-sided light-emitting display screen and a display device, and double-sided display of an organic light-emitting display screen is achieved.
The application discloses a double-sided light-emitting display screen, which comprises a first display substrate and a second display substrate which are arranged oppositely, wherein the first display substrate and the second display substrate are both organic light-emitting display substrates; the first display substrate comprises a first light emitting area and a first hollow area which are arranged adjacently, and the first light emitting area comprises a first substrate, a first electrode, a first light emitting unit and a second electrode which are arranged in a stacked mode; the second display substrate comprises a second light emitting area and a second hollow area which are adjacently arranged, and the second light emitting area comprises a second substrate, a third electrode, a second light emitting unit and a fourth electrode which are arranged in a stacked mode; and the first electrode and the third electrode are made of a light-shielding material; the first electrode, the first light emitting unit, the second electrode, the third electrode, the second light emitting unit and the fourth electrode are arranged between the first substrate and the second substrate, the first light emitting area corresponds to the second hollow area, and the first hollow area corresponds to the second light emitting area.
Optionally, a thickness of the first electrode is equal to a thickness of the third electrode, a thickness of the first light emitting unit is equal to a thickness of the second light emitting unit, a thickness of the second electrode is equal to a thickness of the fourth electrode, and a thickness of the first electrode is greater than a thickness of the second electrode.
Optionally, the dual-sided light-emitting display screen includes at least one counterpoint group, where the counterpoint group is divided into a first counterpoint portion and a second counterpoint portion, the first counterpoint portion includes a first reflection pattern and a first hollow pattern, and the second counterpoint portion includes a second reflection pattern and a second hollow pattern; the first reflection pattern is arranged on the first display substrate, the first hollow pattern is arranged on the second display substrate, and the first reflection pattern and the first hollow pattern are matched and aligned; the second reflection pattern is arranged on the second display substrate, the second hollow pattern is arranged on the first display substrate, and the second reflection pattern and the second hollow pattern are matched and aligned.
Optionally, the double-sided light-emitting display screen includes a supporting pillar, the supporting pillar is disposed between the first light-emitting unit and the second light-emitting unit, one end of the supporting pillar abuts against the first display substrate, and the other end of the supporting pillar abuts against the second display substrate.
Optionally, the supporting pillars are made of a white photoresist material, and the supporting pillars are mixed with a reflective particle material.
Optionally, the first display substrate includes a plurality of first light emitting regions and a plurality of first hollow-out regions, and the plurality of first light emitting regions are arranged in a row along a scanning line direction in the first display substrate to form a first light emitting array; the plurality of first hollow-out areas are arranged in a row along the direction of a scanning line in the first display substrate to form a first hollow-out array; the second display substrate comprises a plurality of second light emitting areas and a plurality of second hollow-out areas, and the second light emitting areas are arranged in a row along the scanning line direction in the second display substrate to form a second light emitting array; the second hollow areas are arranged in a row along the scanning line direction in the second display substrate to form a second hollow array; the first light emitting array and the second hollow array are arranged correspondingly, and the first hollow array and the second light emitting array are arranged correspondingly.
Optionally, the first display substrate includes a plurality of first light emitting regions and a plurality of first hollow-out regions, and the plurality of first light emitting regions are arranged in a row along a data line direction in the first display substrate to form a first light emitting array; the plurality of first hollow-out areas are arranged in a row along the direction of the data lines in the first display substrate to form a first hollow-out array; the second display substrate comprises a plurality of second light emitting areas and a plurality of second hollow-out areas, and the second light emitting areas are arranged in a row along the direction of the data lines in the second display substrate to form a second light emitting array; the plurality of second hollow-out areas are arranged in a row along the direction of the data lines in the second display substrate to form a second hollow-out array; the first light emitting array and the second hollow array are arranged correspondingly, and the first hollow array and the second light emitting array are arranged correspondingly.
Optionally, the first display substrate includes a plurality of first light emitting regions and a plurality of first hollow-out regions, and the plurality of first light emitting regions are arranged in the first display substrate in a dotted manner to form a first light emitting array; the plurality of first hollow-out areas are distributed in a point shape in the first display substrate to form a first hollow-out array; the second display substrate comprises a plurality of second light emitting areas and a plurality of second hollow-out areas, the second light emitting areas are arranged in a dotted manner in the second display substrate to form a second light emitting array, and the second hollow-out areas are arranged in a dotted manner in the second display substrate to form a second hollow-out array; the first light emitting array and the second hollow array are arranged correspondingly, and the first hollow array and the second light emitting array are arranged correspondingly.
Optionally, the first display substrate is divided into a first display area and a first non-display area, the first light emitting area and the first hollow-out area are disposed in the first display area, a first source driver chip is disposed in the first non-display area, and the first source driver chip is communicated with a data line in the first display substrate; the second display substrate is divided into a second display area and a second non-display area, the second light emitting area and the second hollow-out area are arranged in the second display area, a second source electrode driving chip is arranged in the second non-display area, and the second source electrode driving chip is communicated with a data line in the second display substrate; the first source electrode driving chip and the second source electrode driving chip are located on two opposite sides of the double-sided light-emitting display screen.
The application also discloses a display device, which comprises the double-sided luminous display screen and a driving circuit for driving the double-sided luminous display screen.
According to the double-sided light-emitting display screen, the two organic light-emitting display substrates are oppositely arranged, so that light emitted by the first display substrate is displayed through the second hollow area, and light emitted by the second display substrate is displayed through the first hollow area, and double-sided light-emitting display is achieved; in addition, packaging glass is omitted, so that the production cost is saved, the thickness of the double-sided light-emitting display screen is reduced, the distance between the first light-emitting unit and the second light-emitting unit is reduced, and the problem of display interference caused when the first display substrate and the second display substrate display simultaneously is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the application, are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic diagram of a display device according to a first embodiment of the present application;
FIG. 2 is a schematic cross-sectional view of a first dual-sided display panel provided in accordance with a first embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of a second dual-sided display panel provided in accordance with a first embodiment of the present application;
FIG. 4 is a schematic cross-sectional view of a third dual-sided display panel provided in accordance with the first embodiment of the present application;
FIG. 5 is a schematic cross-sectional view of a fourth dual-sided display panel provided in accordance with the first embodiment of the present application;
fig. 6 is a schematic plan view of a first display substrate and a second display substrate provided in the first embodiment of the present application;
FIG. 7 is a schematic cross-sectional view of a fifth dual-sided display panel according to the first embodiment of the present application;
fig. 8 is a schematic plan view of a first display substrate and a second display substrate provided in a second embodiment of the present application;
fig. 9 is a schematic plan view of a first display substrate and a second display substrate provided in a third embodiment of the present application.
10, a display device; 100. a double-sided light emitting display screen; 110. a first display substrate; 111. a first light emitting region; 112. a first hollowed-out area; 113. a first substrate; 114. a first electrode; 115. a first light emitting unit; 116. a second electrode; 117. a first source driver chip; 120. a second display substrate; 121. a second light emitting region; 122. a second hollowed-out area; 123. a second substrate; 124. a third electrode; 125. a second light emitting unit; 126. a fourth electrode; 127. a second source driver chip; 130. aligning the bit groups; 131. a first alignment portion; 132. a first reflective pattern; 133. a first hollowed-out pattern; 134. a second aligning part; 135. a second reflective pattern; 136. a second hollowed-out pattern; 140. a support pillar; 150. a light-shielding layer; 160. a color resist layer; 200. a drive circuit.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present application may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
In the description of the present application, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implicitly indicating the number of technical features indicated. Thus, unless otherwise specified, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "plurality" means two or more. The terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that one or more other features, integers, steps, operations, elements, components, and/or combinations thereof may be present or added.
Further, terms of orientation or positional relationship indicated by "center", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, are described based on the orientation or relative positional relationship shown in the drawings, are simply for convenience of description of the present application, and do not indicate that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.
Furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and may include, for example, fixed connections, removable connections, and integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
The present application is described in detail below with reference to the figures and alternative embodiments.
The first embodiment is as follows:
fig. 1 is a schematic diagram of a display device according to a first embodiment of the present application, and as shown in fig. 1, the present application discloses a display device, where the display device 10 includes a dual-sided light-emitting display panel 100 and a driving circuit 200 for driving the dual-sided light-emitting display panel 100. As shown in fig. 2, the dual-sided light emitting display panel 100 includes a first display substrate 110 and a second display substrate 120 that are disposed opposite to each other, where the first display substrate 110 and the second display substrate 120 are both organic light emitting display substrates; the first display substrate 110 includes a first light emitting region 111 and a first hollow region 112, which are adjacently disposed, and the first light emitting region 111 includes a first substrate 113, a first electrode 114, a first light emitting unit 115, and a second electrode 116, which are stacked; the second display substrate 120 includes a second light emitting area 121 and a second hollow area 122, which are adjacently disposed, and the second light emitting area 121 includes a second substrate 123, a third electrode 124, a second light emitting unit 125, and a fourth electrode 126, which are stacked; and the first electrode 114 and the third electrode 124 are made of a light-shielding material; the first electrode 114, the first light emitting unit 115, the second electrode 116, the third electrode 124, the second light emitting unit 125, and the fourth electrode 126 are disposed between the first substrate 113 and the second substrate 123, the first light emitting region 111 corresponds to the second hollow region 122, and the first hollow region 112 corresponds to the second light emitting region 121.
The dual-sided light-emitting display panel 100 provided in this embodiment combines the light-emitting principles of the transmissive display panel and the reflective display panel, and realizes dual-sided light-emitting display by oppositely disposing two organic light-emitting (OLED) display substrates. Compared with the scheme that two OLED display panels are stacked in a back-to-back manner (i.e. the light-emitting surfaces of the two OLED display panels are in a back-to-back manner), the OLED substrate does not need to be packaged with glass in the embodiment, the double-sided light-emitting display screen 100 only needs to be formed by oppositely arranging the array substrates of the two OLED display panels, the outer side of the double-sided light-emitting display screen 100 is just substrate glass, and other protection structures do not need to be arranged; due to the design, the double-sided light-emitting display screen 100 omits packaging glass, so that the production cost is saved, the thickness of the double-sided light-emitting display screen 100 is reduced, and the weight and the volume of the double-sided light-emitting display screen 100 are reduced.
Compared with the scheme that two OLED display panels are oppositely stacked (i.e., the light emitting surfaces of the two OLED display panels are opposite), the double-sided light-emitting display screen 100 in this embodiment omits a structure of two pieces of encapsulation glass, so that the thickness of the double-sided light-emitting display screen 100 is greatly reduced, the distance between the first light-emitting unit 115 and the second light-emitting unit 125 is reduced, and display interference caused when two display substrates display simultaneously is reduced. This is because the larger the thickness of the dual emission display panel 100 is, the larger the light emitting unit interval between the two display substrates in the dual emission display panel 100 is; since the light emitted by the light-emitting units is scattered, the larger the distance between the light-emitting units in the two display substrates is, the larger the irradiation area caused by the light scattering is, the more the overlapped part of the light emitted by the light-emitting units between the two display substrates is, the larger the interference degree is, and the smaller the thickness of the double-sided light-emitting display screen 100 is, the better the double-sided light-emitting display screen is. In addition, two display substrates are arranged opposite to each other, so that the display screen emits light on both sides, and the influence of the structure in each display substrate on the light emission of the other display substrate needs to be considered, which is hard to think per se. In the present embodiment, by combining the principle design of the transmissive display panel and the reflective display panel, the light emitted by the first light-emitting unit 115 in the first display substrate 110 is emitted from the second hollow-out region 122 of the second display substrate 120, and the light emitted by the second light-emitting unit 125 in the second display substrate 120 is emitted from the first hollow-out region 112 of the first display substrate 110, so as to implement the dual-sided light-emitting display.
In this embodiment, the first electrode 114 and the third electrode 124 are both cathodes, and the second electrode 116 and the fourth electrode 126 are both anodes. In a conventional OLED display panel, the cathode is generally made of a metal material and is opaque, and the anode is generally made of a transparent conductive material and is capable of transmitting light. In this embodiment, the first electrode 114 and the third electrode 124 are both made of a metal material, the second electrode 116 and the fourth electrode 126 are both made of a transparent conductive material, the first electrode 114 prevents light emitted from the first light emitting unit 115 from passing through the first substrate 113, the third electrode 124 prevents light emitted from the second light emitting unit 125 from passing through the second substrate 123, and the first substrate 113 and the second substrate 123 are made of a glass material. The first display substrate 110 and the second display substrate 120 may be connected by bonding, and may be bonded by using an optical adhesive. Of course, in this embodiment, the first display substrate 110 and the second display substrate 120 further have a structure of a hole injection layer, a hole transport layer, an electron injection layer, an electron transport layer, and the like, which is not described herein.
Further, as shown in fig. 3, the thickness of the first electrode 114 is equal to that of the third electrode 124, the thickness of the first light emitting unit 115 is equal to that of the second light emitting unit 125, the thickness of the second electrode 116 is equal to that of the fourth electrode 126, and the thickness of the first electrode 114 is greater than that of the second electrode 116. After the first display substrate 110 and the second display substrate 120 are attached to each other, the second electrode 116 abuts against the second substrate 123, the fourth electrode 126 abuts against the first substrate 113, and the thicknesses of the second electrode 116 and the fourth electrode 126 are small, so that the first electrode 114 partially overlaps with the second light emitting unit 125 in the horizontal direction, and the third electrode 124 partially overlaps with the first light emitting unit 115 in the horizontal direction. By adopting the design, the thickness of the double-sided light-emitting display screen 100 is further reduced, and the display effect of the double-sided light-emitting display screen 100 is improved; in addition, the light emitted from the side of the first light emitting unit 115 is blocked by the third electrode 124, and the light emitted from the side of the second light emitting unit 125 is blocked by the first electrode 114, so that the first light emitting unit 115 and the second light emitting unit 125 are not interfered during the light emitting process, and thus the two display substrates are not affected by the opposite substrate when displaying images, thereby improving the display effect of the dual-sided light emitting display 100. Further, the thickness of the first electrode 114 is equal to the sum of the thickness of the second electrode 116 and the thickness of the first light emitting unit 115, so that the overlapping area of the first electrode 114 and the third electrode 124 with the second light emitting unit 125 and the first light emitting unit 115 in the horizontal direction is further increased, and the light shielding effect is further improved.
At this moment, the embodiment further sets up the counterpoint structure, can detect out the counterpoint condition behind two display substrates to the box through the counterpoint structure, avoids two display substrates skew to appear when counterpointing, leads to second electrode 116 and fourth electrode 126 butt, and the condition that dislocation set can't be realized to first luminescence unit 115 and second luminescence unit 125 for the unable normal demonstration of two-sided luminous display screen 100.
Specifically, as also shown in fig. 3, the dual-sided light-emitting display screen 100 includes at least one alignment group 130, the alignment group 130 is divided into a first alignment part 131 and a second alignment part 134, the first alignment part 131 includes a first reflective pattern 132 and a first hollow pattern 133, and the second alignment part 134 includes a second reflective pattern 135 and a second hollow pattern 136; the first reflective pattern 132 is disposed on the first display substrate 110 and located on the light-shielding layer 150 of the non-display region, the first hollow pattern 133 is disposed on the second display substrate 120, the light-shielding layer 150 of the second display substrate 120 is etched into the first hollow pattern 133, and the first reflective pattern 132 and the first hollow pattern 133 are aligned in a matching manner; the second reflective pattern 135 is disposed on the light-shielding layer 150 of the second display substrate 120 in the non-display region, the second hollow pattern 136 is disposed on the first display substrate 110, the light-shielding layer 150 of the first display substrate 110 is etched into the second hollow pattern 136, and the second reflective pattern 135 and the second hollow pattern 136 are aligned in a matching manner.
This embodiment not only sets up the counterpoint condition that counterpoint group 130 detected two display substrates, and every counterpoint group 130 still sets up two counterpoint portions moreover, can detect from two plain noodles of two-sided luminous display screen 100 simultaneously, is favorable to improving the precision that detects like this. The first hollow pattern 133, the second hollow pattern 136, the first reflective pattern 132, and the second reflective pattern 135 may be not only alignment shapes such as a general polygon and a cross shape, but also marks for displaying manufacturer information or other information; when being irradiated by external light, the first and second reflective patterns 132 and 135 can reflect light to display a logo; moreover, the two light emitting surfaces of the dual-surface light emitting display 100 are provided with the marks, so that the attention of the user can be improved.
As shown in fig. 4, a supporting column 140 may be further disposed in the dual-sided light emitting display 100, the supporting column 140 is disposed between the first light emitting unit 115 and the second light emitting unit 125, and one end of the supporting column 140 abuts against the first display substrate 110 and the other end abuts against the second display substrate 120. The supporting column 140(Photo Spacer, PS) is generally used in a liquid crystal display panel, and is usually made of a black photoresist material for supporting an array substrate and a color filter substrate in the liquid crystal display panel; however, the supporting column 140 is not generally used for the organic light emitting display panel, the supporting column 140 is arranged between the first display substrate 110 and the second display substrate 120, so that the compression resistance effect of the double-sided light emitting display screen 100 is improved, when the first display substrate 110 or the second display substrate 120 is pressed, the supporting column 140 can play a role in buffering through deformation, and the pressing force is prevented from acting on the opposite side display substrate. Moreover, through the design of the supporting column 140, when the first display substrate 110 and the second display substrate 120 are bonded by optical cement, the design of the supporting column 140 can enable more optical cement to be contained between the first display substrate 110 and the second display substrate 120, which is beneficial to improving the bonding effect of the first display substrate 110 and the second display substrate 120 and improving the stability of the dual-sided light-emitting display screen 100.
The supporting posts 140 may be made of a black photoresist material, so that the supporting posts 140 have a light blocking effect, and the supporting posts 140 disposed between the first light-emitting units 115 and the second light-emitting units 125 can prevent the first light-emitting units 115 and the second light-emitting units 125 from interfering with each other during light emission, so that both light-emitting surfaces of the dual-surface light-emitting display 100 are not affected. Of course, the supporting posts 140 may also be white and made of a white photoresist material, so that the supporting posts 140 can reflect the light emitted by the first light-emitting units 115 and the second light-emitting units 125 while playing a supporting role, thereby improving the brightness of the first display substrate 110 and the second display substrate 120 and improving the display effect. Further, when the supporting pillars 140 are white, reflective particle materials, such as quantum dot materials and fluorescent powders, may be mixed in the supporting pillars 140 to further improve the reflective effect of the supporting pillars 140, improve the light utilization rate, so that the first display substrate 110 and the second display substrate 120 have higher brightness, and further improve the display effect.
In the dual-sided light-emitting display panel 100 provided in this embodiment, the first display substrate 110 and the second display substrate 120 both include a display area and a non-display area, the light-emitting areas and the hollow-out areas are both disposed in the display area, the display area of the first display substrate 110 and the display area of the second display substrate 120 are overlapped, the first light-emitting area 111 and the second light-emitting area 121 are staggered, and the first hollow-out area 112 and the second hollow-out area 122 are staggered. As for the non-display area arrangement of the first display substrate 110 and the second display substrate 120, as shown in fig. 5, the first display substrate 110 is divided into a first display area and a first non-display area, the first light emitting area 111 and the first hollow-out area 112 are arranged in the first display area, a first source driver chip 117 is arranged in the first non-display area, and the first source driver chip 117 is communicated with the data lines in the first display substrate 110; the second display substrate 120 is divided into a second display area and a second non-display area, the second light emitting area 121 and the second hollow-out area 122 are disposed in the second display area, a second source driver chip 127 is disposed in the second non-display area, and the second source driver chip 127 is communicated with a data line in the second display substrate 120; the first source driver chip 117 and the second source driver chip 127 are located at two opposite sides of the dual-sided light emitting display panel 100.
In this embodiment, the data lines of the first display substrate 110 and the data lines of the second display substrate 120 are respectively controlled by respective source driver chips, so as to achieve the effect that the first display substrate 110 and the second display substrate 120 display different images, and certainly, the data lines and the data lines can also be driven synchronously, so that the two display substrates display the same image. After the first display substrate 110 and the second display substrate 120 are arranged in a box, the first source driver chip 117 and the second source driver chip 127 are located between the first substrate 113 and the second substrate 123 and located on two opposite sides of the dual-sided light-emitting display screen 100, so that the first source driver chip 117 and the second source driver chip 127 are designed without occupying the thickness of the dual-sided light-emitting display screen 100, and the electrostatic problem caused by the relative arrangement of the first source driver chip 117 and the second source driver chip 127 can be avoided.
In this embodiment, the arrangement design of the light emitting regions and the hollow-out regions is shown in fig. 6, the first display substrate 110 includes a plurality of first light emitting regions 111 and a plurality of first hollow-out regions 112, and the plurality of first light emitting regions 111 are arranged in a row along a scanning line direction in the first display substrate 110 to form a first light emitting array; the plurality of first hollow-out regions 112 are arranged in a row along a scanning line direction in the first display substrate 110 to form a first hollow-out array; the second display substrate 120 includes a plurality of second light emitting areas 121 and a plurality of second hollow-out areas 122, and the plurality of second light emitting areas 121 are arranged in a row along a scanning line direction in the second display substrate 120 to form a second light emitting array; the plurality of second hollow-out regions 122 are arranged in a row along the scanning line direction in the second display substrate 120 to form a second hollow-out array; the first light emitting array and the second hollow array are arranged correspondingly, and the first hollow array and the second light emitting array are arranged correspondingly. At this time, the supporting pillars 140 are in a long strip shape and are distributed in rows along the scanning line direction.
In the first display substrate 110, the first light emitting regions 111 are arranged in a row at intervals, the first hollow-out regions 112 are also arranged in a row at intervals, and each row of the first light emitting regions 111 and each row of the first hollow-out regions 112 are arranged adjacently; similarly, in the second display substrate 120, the second light emitting areas 121 are arranged in a row at intervals, the second hollow-out areas 122 are also arranged in a row at intervals, and each row of the second light emitting areas 121 and each row of the second hollow-out areas 122 are arranged adjacently. After the first display substrate 110 and the second display substrate 120 are aligned with each other, the first light emitting array is arranged corresponding to the second hollow array, and the first hollow array is arranged corresponding to the second light emitting array. By adopting such an arrangement mode, the source driver chip in the first display substrate 110 or the second display substrate 120 only needs to control the data lines with half the resolution, so that the data lines can be made denser and shorter, the space of the non-display area of the scheme can be designed to be narrower, and the narrow frame design in the direction of the data lines is realized.
Moreover, the pixels of the two light-emitting surfaces of the dual-surface light-emitting display screen 100 may also be different according to the requirement, for example, in a billboard with dual-surface light-emitting display in a store, the pixels of the display screen facing the interior of the store in the billboard are high, so that consumers can clearly know the commodity information; the display picture of the billboard facing the outside of the store has low pixels, and people outside only need to pay attention to the promotion activities or other information, so that various requirements are met. At this time, the distance between the data lines and the scan lines in the first display substrate 110 is different from the distance between the data lines and the scan lines in the second display substrate 120, the areas of the first light emitting region 111 and the second light emitting region 121 are different, and the areas of the first hollow-out region 112 and the second hollow-out region 122 are different, so that the pixel design in the first display substrate 110 is different from the pixel design in the second display substrate 120, and the number of pixels in the two display substrates can be 3: 1.
In addition, according to the requirement, the areas of the two light emitting surfaces of the dual-surface light emitting display screen 100 may also be different, for example, in some dual-surface mobile phones, the front surface of the display screen needs to display the whole display operation interface, and there are many pictures to be displayed, so the light emitting area is large; the back of the display screen can display some patterns or character information which can be noticed by people, so that the needed display picture is small, the light-emitting area is small, in addition, the part which is not displayed can save the electric quantity, and the influence on other people is avoided.
As shown in fig. 7, a color resist layer 160 may be further disposed in the first display substrate 110 and the second display substrate 120, respectively, and the color resist layer 160 is disposed on the substrate between the cathode and the substrate, and has the same pattern as the cathode. Since the light emitted from the first display substrate 110 is emitted from the hollow-out areas of the second display substrate 120, the light emitted from the second display substrate 120 is emitted from the hollow-out areas of the first display substrate 110, and the cathodes made of metal materials are disposed between the hollow-out areas, the light emitting areas of the first display substrate 110 and the second display substrate 120 are only half of the area of each display area of the display substrate, and the aperture ratio of the dual-sided light-emitting display 100 is low. After the color resistance layer 160 is additionally arranged between the cathode and the substrate, when the first display substrate 110 emits light, the color resistance layer 160 in the light emitting area of the second display substrate 120 can also display colors under the influence of light irradiation in the first display substrate 110, so that a color mixing effect is generated, and the aperture opening ratio of the double-sided light emitting display screen 100 is improved.
Example two:
fig. 8 is a schematic plan view of a first display substrate 110 and a second display substrate 120 according to a second embodiment of the present disclosure, and different from the second embodiment, the first light emitting regions 111, the first hollow-out regions 112, the second light emitting regions 121, and the second hollow-out regions 122 in the second embodiment are arranged in a row-by-row manner, specifically, the first display substrate 110 includes a plurality of first light emitting regions 111 and a plurality of first hollow-out regions 112, and the plurality of first light emitting regions 111 are arranged in a row along a data line direction in the first display substrate 110 to form a first light emitting array; the plurality of first hollow-out regions 112 are arranged in a row along a data line direction in the first display substrate 110 to form a first hollow-out array; the second display substrate 120 includes a plurality of second light emitting areas 121 and a plurality of second hollow-out areas 122, and the plurality of second light emitting areas 121 are arranged in a row along a data line direction in the second display substrate 120 to form a second light emitting array; the plurality of second hollow-out regions 122 are arranged in a row along the direction of the data lines in the second display substrate 120 to form a second hollow-out array; the first light emitting array and the second hollow array are arranged correspondingly, and the first hollow array and the second light emitting array are arranged correspondingly.
Because the luminous areas and the hollow-out areas in each display substrate are alternately arranged in the horizontal direction, the grid driving units corresponding to the luminous areas in each row can occupy two rows of space, so that the grid driving chip area can be narrower, and the narrow frame design in the horizontal direction is realized. In this case, the supporting posts 140 are also long and are distributed in a row along the data line direction.
Example three:
fig. 9 is a schematic plan view of a first display substrate 110 and a second display substrate 120 according to a third embodiment of the present disclosure, which is different from the first embodiment in that the first light emitting region 111, the first hollow-out region 112, the second light emitting region 121, and the second hollow-out region 122 in the present embodiment are arranged in a dot matrix, so that the display effect of the dual-panel light-emitting display 100 is more uniform. Specifically, the first display substrate 110 includes a plurality of first light emitting regions 111 and a plurality of first hollow-out regions 112, and the plurality of first light emitting regions 111 are arranged in a dot shape in the first display substrate 110 to form a first light emitting array; the plurality of first hollow-out areas 112 are arranged in a dotted manner in the first display substrate 110 to form a first hollow-out array; the second display substrate 120 includes a plurality of second light emitting areas 121 and a plurality of second hollow-out areas 122, the plurality of second light emitting areas 121 are arranged in a dot shape in the second display substrate 120 to form a second light emitting array, and the plurality of second hollow-out areas 122 are arranged in a dot shape in the second display substrate 120 to form a second hollow-out array; the first light emitting array and the second hollow array are arranged correspondingly, and the first hollow array and the second light emitting array are arranged correspondingly. At this time, the supporting pillars 140 are distributed in a dotted manner.
Of course, the arrangement of the light-emitting areas and the hollow-out areas in the dual-sided light-emitting display 100 may also adopt other forms, and in the above three embodiments, if the pixels in the dual-sided display are small, the light transmission is difficult, and the light-emitting areas and the hollow-out areas may be designed every two or even more rows, columns and dots. Not to be construed as an exhaustive list.
It should be noted that the inventive concept of the present application can form many embodiments, but the present application has a limited space and cannot be listed one by one, so that, on the premise of no conflict, any combination between the above-described embodiments or technical features can form a new embodiment, and after the embodiments or technical features are combined, the original technical effect will be enhanced.
The foregoing is a more detailed description of the present application in connection with specific alternative embodiments, and the specific implementations of the present application are not to be considered limited to these descriptions. For those skilled in the art to which the present application pertains, several simple deductions or substitutions may be made without departing from the concept of the present application, and all should be considered as belonging to the protection scope of the present application.
Claims (9)
1. A double-sided light-emitting display screen is characterized by comprising a first display substrate and a second display substrate which are oppositely arranged, wherein the first display substrate and the second display substrate are both organic light-emitting display substrates;
the first display substrate comprises a first light emitting area and a first hollow area which are arranged adjacently, and the first light emitting area comprises a first substrate, a first electrode, a first light emitting unit and a second electrode which are arranged in a stacked mode; the second display substrate comprises a second light emitting area and a second hollow area which are adjacently arranged, and the second light emitting area comprises a second substrate, a third electrode, a second light emitting unit and a fourth electrode which are arranged in a stacked mode; and the first electrode and the third electrode are made of a light-shielding material;
the first electrode, the first light-emitting unit, the second electrode, the third electrode, the second light-emitting unit and the fourth electrode are arranged between the first substrate and the second substrate, the first light-emitting area corresponds to the second hollow-out area, and the first hollow-out area corresponds to the second light-emitting area;
the thickness of the first electrode is equal to that of the third electrode, the thickness of the first light emitting unit is equal to that of the second light emitting unit, the thickness of the second electrode is equal to that of the fourth electrode, and the thickness of the first electrode is greater than that of the second electrode;
a thickness of the first electrode is equal to a sum of a thickness of the second electrode and a thickness of the first light emitting unit; a thickness of the third electrode is equal to a sum of a thickness of the fourth electrode and a thickness of the second light emitting unit;
the second electrode abuts against the second substrate, and the fourth electrode abuts against the first substrate.
2. The dual sided emissive display of claim 1, wherein the dual sided emissive display comprises at least one counterpoint group, the counterpoint group divided into a first counterpoint portion and a second counterpoint portion, the first counterpoint portion comprising a first reflective pattern and a first cutout pattern, the second counterpoint portion comprising a second reflective pattern and a second cutout pattern;
the first reflection pattern is arranged on the first display substrate, the first hollow pattern is arranged on the second display substrate, and the first reflection pattern and the first hollow pattern are matched and aligned; the second reflection pattern is arranged on the second display substrate, the second hollow pattern is arranged on the first display substrate, and the second reflection pattern and the second hollow pattern are matched and aligned.
3. The dual emission display panel of claim 1, wherein the dual emission display panel comprises a support post disposed between the first emission unit and the second emission unit, and wherein one end of the support post abuts the first display substrate and the other end abuts the second display substrate.
4. The dual sided emissive display screen of claim 3, wherein the support posts are made of a white photoresist material and the reflective particulate material is mixed in the support posts.
5. The dual-sided light emitting display of claim 1, wherein the first display substrate comprises a plurality of first light emitting areas and a plurality of first hollow areas, the plurality of first light emitting areas being arranged in a row along a scan line direction in the first display substrate to form a first light emitting array; the plurality of first hollow-out areas are arranged in a row along the direction of a scanning line in the first display substrate to form a first hollow-out array;
the second display substrate comprises a plurality of second light emitting areas and a plurality of second hollow-out areas, and the second light emitting areas are arranged in a row along the scanning line direction in the second display substrate to form a second light emitting array; the second hollow areas are arranged in a row along the scanning line direction in the second display substrate to form a second hollow array;
the first light emitting array and the second hollow array are arranged correspondingly, and the first hollow array and the second light emitting array are arranged correspondingly.
6. The dual-sided light emitting display of claim 1, wherein the first display substrate comprises a plurality of first light emitting areas and a plurality of first hollow areas, the plurality of first light emitting areas being arranged in a row along a data line direction in the first display substrate to form a first light emitting array; the plurality of first hollow-out areas are arranged in a row along the direction of the data lines in the first display substrate to form a first hollow-out array;
the second display substrate comprises a plurality of second light emitting areas and a plurality of second hollow-out areas, and the second light emitting areas are arranged in a row along the direction of the data lines in the second display substrate to form a second light emitting array; the plurality of second hollow-out areas are arranged in a row along the direction of the data lines in the second display substrate to form a second hollow-out array;
the first light emitting array and the second hollow array are arranged correspondingly, and the first hollow array and the second light emitting array are arranged correspondingly.
7. The dual-sided light emitting display of claim 1, wherein the first display substrate comprises a plurality of first light emitting areas and a plurality of first hollow areas, the plurality of first light emitting areas being arranged in a dot pattern in the first display substrate to form a first light emitting array; the plurality of first hollow-out areas are distributed in a point shape in the first display substrate to form a first hollow-out array;
the second display substrate comprises a plurality of second light emitting areas and a plurality of second hollow-out areas, the second light emitting areas are arranged in a dotted manner in the second display substrate to form a second light emitting array, and the second hollow-out areas are arranged in a dotted manner in the second display substrate to form a second hollow-out array;
the first light emitting array and the second hollow array are arranged correspondingly, and the first hollow array and the second light emitting array are arranged correspondingly.
8. The dual-sided light-emitting display screen of any one of claims 1 to 7, wherein the first display substrate is divided into a first display area and a first non-display area, the first light-emitting area and the first hollow area are disposed in the first display area, a first source driver chip is disposed in the first non-display area, and the first source driver chip is connected to a data line in the first display substrate;
the second display substrate is divided into a second display area and a second non-display area, the second light emitting area and the second hollow-out area are arranged in the second display area, a second source electrode driving chip is arranged in the second non-display area, and the second source electrode driving chip is communicated with a data line in the second display substrate;
the first source electrode driving chip and the second source electrode driving chip are located on two opposite sides of the double-sided light-emitting display screen.
9. A display device comprising the dual emission display panel according to any one of claims 1 to 8, and a driving circuit for driving the dual emission display panel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111164574.9A CN113921575B (en) | 2021-09-30 | 2021-09-30 | Double-sided luminous display screen and display device |
| PCT/CN2022/101278 WO2023050928A1 (en) | 2021-09-30 | 2022-06-24 | Double-sided light-emitting display screen and display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111164574.9A CN113921575B (en) | 2021-09-30 | 2021-09-30 | Double-sided luminous display screen and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113921575A CN113921575A (en) | 2022-01-11 |
| CN113921575B true CN113921575B (en) | 2022-08-05 |
Family
ID=79237815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111164574.9A Active CN113921575B (en) | 2021-09-30 | 2021-09-30 | Double-sided luminous display screen and display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113921575B (en) |
| WO (1) | WO2023050928A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113921575B (en) * | 2021-09-30 | 2022-08-05 | 惠科股份有限公司 | Double-sided luminous display screen and display device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109962177A (en) * | 2019-03-28 | 2019-07-02 | 京东方科技集团股份有限公司 | A kind of oled substrate and preparation method thereof, OLED display |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI270834B (en) * | 2005-04-15 | 2007-01-11 | Au Optronics Corp | Double-sided electroluminescence display |
| CN102593149A (en) * | 2012-02-29 | 2012-07-18 | 南京中电熊猫液晶显示科技有限公司 | Double-sided OLED (Organic Light Emitting Diode) display and manufacturing method thereof |
| KR102303241B1 (en) * | 2014-07-24 | 2021-09-17 | 삼성디스플레이 주식회사 | Display apparatus |
| CN106783913B (en) * | 2016-11-17 | 2019-12-27 | 武汉华星光电技术有限公司 | AMOLED double-sided display |
| CN109285858B (en) * | 2017-07-19 | 2021-06-18 | 上海和辉光电股份有限公司 | Double-sided display panel and display device |
| CN110473822B (en) * | 2018-05-09 | 2021-11-23 | 京东方科技集团股份有限公司 | Alignment method, alignment device and evaporation equipment |
| CN109768063B (en) * | 2019-01-28 | 2021-11-26 | 京东方科技集团股份有限公司 | Double-sided display screen and display device |
| CN210429823U (en) * | 2019-11-29 | 2020-04-28 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN214098024U (en) * | 2020-12-02 | 2021-08-31 | 滁州惠科光电科技有限公司 | Display panel and display device |
| CN113921575B (en) * | 2021-09-30 | 2022-08-05 | 惠科股份有限公司 | Double-sided luminous display screen and display device |
-
2021
- 2021-09-30 CN CN202111164574.9A patent/CN113921575B/en active Active
-
2022
- 2022-06-24 WO PCT/CN2022/101278 patent/WO2023050928A1/en unknown
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109962177A (en) * | 2019-03-28 | 2019-07-02 | 京东方科技集团股份有限公司 | A kind of oled substrate and preparation method thereof, OLED display |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023050928A1 (en) | 2023-04-06 |
| CN113921575A (en) | 2022-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109950293B (en) | Display panel and display device | |
| KR100567178B1 (en) | Transmissive liquid crystal display unit | |
| US8599172B2 (en) | Flat panel display with built-in touch screen and a method of driving the same | |
| CN111489658B (en) | Double-sided display panel, manufacturing method thereof and double-sided display device | |
| US11977292B2 (en) | Color filter substrate, display panel, and display device | |
| US11215857B2 (en) | Double-sided display panel and display device | |
| EP3640718A1 (en) | Reflective liquid crystal display panel and display device | |
| US20220392970A1 (en) | Display panel and display device | |
| US7532282B2 (en) | LCD device having a semi-transmission area with bump layer in a reflective portion thereof and a transmission portion having a transparent electrode with spacer disposed thereon | |
| CN113921575B (en) | Double-sided luminous display screen and display device | |
| CN111613652A (en) | Display panel | |
| CN113078201A (en) | Display panel and display device | |
| JP2002207434A (en) | Illumination device, display device and electronic appliance | |
| US6680760B2 (en) | Liquid crystal display device | |
| CN111969129B (en) | Display panel and display device | |
| US11308850B2 (en) | Combined display panel | |
| CN114898668A (en) | Tiled display panel and tiled display device | |
| CN109860272B (en) | Display substrate and display device | |
| CN111258118B (en) | Display substrate, control method thereof and display device | |
| KR20140131669A (en) | Reflective type display device | |
| JP2001135477A (en) | Organic el display element | |
| CN101441973B (en) | Light emission device and display device using the light emission device as its light source | |
| CN111722518B (en) | Watch (watch) | |
| CN219329956U (en) | Display panel and display device | |
| JP2006178335A (en) | Liquid crystal display device and method for manufacturing liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |