WO2022140944A1

WO2022140944A1 - Display structure and display

Info

Publication number: WO2022140944A1
Application number: PCT/CN2020/140273
Authority: WO
Inventors: 郭文瑞; 郑泉水
Original assignee: 深圳清华大学研究院; 清华大学
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2022-07-07
Also published as: CN115151968A; CN115151968B

Abstract

A display structure and a display. The display structure comprises a screen layer (1) and a backlight source substrate (2), wherein the screen layer (1) and the backlight source substrate (2) are arranged opposite each other, and a shielding layer (3) is arranged on one side of the screen layer (1); the shielding layer (3) comprises several blocking components, and there is a light transmitting gap (11) between adjacent blocking components; and movable blocks (4) are arranged on one side of the screen layer (1), and the movable blocks (4) are movably arranged at the light transmitting gaps (11) or on the blocking components. The movable blocks (4), which can be electrically driven and horizontally move left and right, are used to replace liquid crystal molecules in the prior art to serve as an optical switch of a backlight source, and the movable blocks do not need to turn and move a long distance, thereby greatly improving the response time of a liquid crystal screen. The whole display structure is based on an LED backlight source with stable performance, and therefore has a long service life.

Description

Display structure and display

technical field

The invention belongs to the technical field of display screens, and in particular relates to a display structure and a display.

Background technique

With the development of science and technology, various display technologies emerge one after another, and different display technologies directly affect the experience of products. There are two main types of display technologies commonly used in the market:

1. OLED display technology based on self-luminous system, but the production of OLED display requires high-precision metal evaporation masking and high-level packaging requirements, resulting in high cost and short life of OLED display;

2. The liquid crystal display technology based on the LED backlight source needs to apply a voltage to turn the liquid crystal molecules to realize the on-off switching of the backlight source, thereby realizing the light and dark exchange of the pixels. However, because the liquid crystal molecules need a certain time to turn, the The response time is relatively long, and there are phenomena such as trailing ghosts, which affect the display effect.

technical problem

The purpose of the present invention is to provide a display structure and a display to solve the technical problem that the liquid crystal molecules turn slowly and affect the display effect in the liquid crystal display technology of the LED backlight source in the prior art.

technical solutions

In order to achieve the above purpose of the invention, the technical solution provided by the present invention is to provide a display structure, comprising: a screen layer and a backlight source substrate, the screen layer and the backlight source substrate are arranged oppositely, and one of the screen layer There is a shielding layer on the side, the shielding layer includes several shielding parts, and there is a light-transmitting gap between the adjacent shielding parts. Either side of the screen layer is provided with a moving block, and the moving block The sliding block is on the light-transmitting gap or on the blocking member.

As a priority, the shielding layer is arranged inside the screen layer, and the screen layer has an opaque shielding member and a light-transmitting light-transmitting gap.

As a priority, the shielding layer is located outside the screen layer, the shielding layer is provided on either side of the screen layer, and the moving block is provided on the other side of the screen layer or on the on the shield.

As a priority, the shielding layer is attached to the side of the screen layer facing the backlight source substrate, and the screen layer and the backlight source substrate are attached and fixed, and the shielding layer is sealed on the backlight source substrate. between the screen layer and the backlight substrate.

As a priority, a pixel packaging cover plate is also included, and the pixel packaging cover plate is located on the side of the screen layer substrate away from the backlight source substrate.

As a priority, a color filter structure is provided on the pixel package cover, and the color filter structure is opposite to the light transmission gap.

As a priority, the area of the cross section of the color filter is greater than or equal to the area of the cross section of the light transmission gap.

As a priority, the moving stopper has an ultra-slippery surface, the side of the screen layer facing the moving stopper also has an ultraslippery surface, and the moving stopper is in ultraslippery contact with the screen layer.

As a priority, a driving electrode for driving the moving block to move is provided inside the screen layer.

As a priority, the screen layer is light-transmitting, and both the shielding layer and the moving block are light-tight.

The present invention also discloses a display, including the display structure described in any one of the above.

beneficial effect

The display structure of the present invention uses a movable block that can be driven by electricity to replace the liquid crystal molecules in the prior art as the light switch of the backlight source, which does not require steering and long-distance movement, greatly improves the response time of the liquid crystal screen, and improves the The display effect is improved, and the entire display structure is based on the LED backlight with stable performance, which has a long service life. The processing technology is highly compatible with the processing lines of the existing Micro LED and LCD liquid crystal screens. At the same time, it matches the micro-nano processing technology. Make displays with higher pixel density at lower production costs.

Description of drawings

FIG. 1 is a first structural schematic diagram of a display structure provided by an embodiment of the present invention;

FIG. 2 is a second structural schematic diagram of a display structure provided by an embodiment of the present invention.

Description of reference numbers:

1. Screen layer; 11. Light transmission gap; 2. Backlight source substrate; 3. Shield layer; 4. Moving block; 5. Pixel packaging cover; 51. Color filter structure.

BEST MODE FOR CARRYING OUT THE INVENTION

Please refer to FIG. 1 and FIG. 2. The display structure includes a screen layer 1 and a backlight substrate 2. The screen layer 1 and the backlight substrate 2 are stacked and arranged. The backlight substrate 2 is used to emit light. For monochromatic light, LED backlight can be used. The screen layer 1 is generally made of transparent material, which can transmit the light emitted by the backlight substrate 2. It can be selected from polyester resin, transparent polyimide, polycarbonate, Materials such as polymethyl methacrylate or glass can meet the screen performance.

In this embodiment, a shielding layer 3 is provided on one side of the screen layer 1, and the shielding layer 3 includes a plurality of shielding components, and there are light-transmitting gaps 11 between the adjacent shielding components, so as to shield the backlight at intervals. Light emitted by the source substrate 2 . Preferably, the shielding layer 3 is located outside the screen layer 1, and the shielding layer 3 can be attached to the screen layer 1, or can be arranged on a bracket or a cover plate with a gap formed between the screen layer 1 and shielding the screen layer 1. The components are several separate blocking blocks or blocking sheets located inside the shielding layer 3, which can play a partial blocking effect, which is not limited here.

In this embodiment, the screen layer 1 is attached to the side of the screen layer 1 facing the backlight source substrate 2. At this time, the screen layer 1 and the backlight source substrate 2 are attached and fixed, and the shielding layer 3 is sealed. Between the screen layer 1 and the backlight source substrate 2, and the screen layer 1 and the backlight source substrate 2 are bonded and fixed, the shielding layer 3 is sealed and arranged on the screen layer 1 and the backlight source substrate 2. Between the backlight substrates 2, the shielding layer 3 at this time can not only play the role of shielding light, but also play a role of sealing, so as to prevent external dust or impurities from entering the light transmission gap 11 and affect the display effect. .

In this embodiment, one side of the screen layer 1 is provided with a moving block 4, and the moving block 4 can be located on the same side as the shielding layer 3 or on opposite sides of the screen layer 1, or the shielding layer 3 is located on the screen layer. Inside 1, the moving block 4 is located on either side of the screen layer 1, which is not limited here.

In this embodiment, the number of the moving blocks 4 is several, the moving blocks 4 can be slidably arranged on the screen layer 1 , and the moving blocks 4 are movably arranged on the light-transmitting gap 11 or on the shielding member. The number of the moving blocks 4 is generally less than or equal to the number of the light-transmitting gaps 11 , and one moving block 4 can block one or several light-transmitting gaps 11 at the same time.

In this embodiment, the size of the moving block 4 is generally in the order of micrometers, and the size of the light transmission gap 11 is also in the order of micrometers, and its size specification is relatively small. There is a super-slip contact between the moving block 4 and the screen layer 1, that is, the side of the moving block 4 facing the screen layer 1 has an atomically flat surface, and the side of the screen layer 1 facing the moving block 4 also has an atomically flat surface. , the moving block 4 can slide on the screen layer 1, and the frictional force at this time is almost zero. The super-slip contact means that when the moving block 4 and the screen layer 1 are in relative motion, the friction force is almost zero, the friction coefficient is less than one thousandth, and the wear is zero.

In this embodiment, the driving of the moving blocks 4 is generally electric drive or magnetic drive, which can drive one or more moving blocks 4 at the same time, and the moving speed of the moving blocks 4 can be controlled. Preferably, the driving of the moving block 4 generally adopts electric driving, which has the advantages of higher stability and strong controllability. Driving electrodes are arranged between or outside the screen layer 1 and the shielding layer 3. By applying a voltage to the driving electrodes, a pressure difference is formed on both sides of the moving block 4, thereby driving the reciprocating motion of the moving block 4.

Please refer to FIG. 1 and FIG. 2 , as a specific embodiment of the display structure provided by the present invention, it further includes a pixel packaging cover plate 5 , and the pixel packaging cover plate 5 is located on the substrate of the screen layer 1 away from the One side of the backlight source substrate 2, and the pixel packaging cover plate 5 is covered above the screen layer 1, and there is a gap between the pixel packaging cover plate 5 and the screen layer 1, and the moving block 4 can be in the gap. Sliding inside, and the light source can also diffuse in this gap.

In this embodiment, the pixel packaging cover plate 5 is generally an RGB filter, and a color filter structure 51 is aligned on the pixel packaging cover plate 5. The color filter structure 51 is connected to the transparent filter. The light gap 11 is opposite to each other, and can convert the white light emitted by the backlight source substrate 2 into colored light. Preferably, the size of the color filter structure 51 projected on the screen layer 1 is larger than the size of the light transmission gap 11 .

This embodiment is based on the fact that the response time of the drivable physical moving block 4 under the super-slip interface can be as low as nanoseconds. In the prior art, the response time of conventional liquid crystal molecules is at the millisecond level. The response time is much smaller than that of the liquid crystal molecules, so that it has a better display effect.

In the display structure provided in this embodiment, from the point of view of the process, one of the manufacturing schemes of the moving stopper 4 is: after the screen layer 1, the backlight source substrate 2 and the shielding layer 3 are assembled, the moving stopper 4 is transferred to the The target position is located on the light-transmitting gap 11 or on one side of the light-transmitting gap 11 , so it requires mass transfer technology like the existing MicroLED display technology during processing. The thickness of the moving block 4 is thinner than that of the LED. The lamp beads are easier to process, and the moving stopper 4 does not need to be welded with the bottom substrate after the transfer, and the processing method is simpler.

In this embodiment, in terms of product performance, the current display technology with the best overall product performance is the OLED display solution, but the production and processing must rely on the high-precision vapor deposition metal mask process, and the requirements for the packaging process are also The higher the price, the higher the price. At the same time, if the packaging process meets the requirements, the luminescent material is also easily corroded by water and oxygen, which reduces the life of the screen.

The display structure provided in this embodiment is based on the LED backlight with stable performance, and the processing technology is highly compatible with the existing processing lines of MicroLED and LCD liquid crystal screens, which can reduce production costs; Higher pixel density for better display performance.

Referring to FIG. 1 and FIG. 2 , the present invention further provides a display, and the display includes the display structure in any of the above-mentioned embodiments. For a display, it generally also includes conventional structures such as a backplane, a casing, and a filter in the prior art, which are all in the prior art and will not be described in detail here.

The display provided by this embodiment adopts the above-mentioned display structure, which greatly improves the response time of the liquid crystal screen and improves the display effect, and the entire display structure is based on the LED backlight source with stable performance, which has a long service life, and the processing technology and The processing lines of the existing Micro LED and LCD liquid crystal screens have a high degree of fit, and at the same time match the micro-nano processing technology capabilities, which can produce displays with higher pixel density and lower production costs.

Industrial Applicability

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims

A display structure includes a screen layer and a backlight source substrate, wherein the screen layer and the backlight source substrate are arranged opposite to each other, characterized in that a shielding layer is provided on one side of the screen layer, and the shielding layer includes a plurality of There are two shielding parts, and there are light-transmitting gaps between the adjacent shielding parts. There are moving blocks on either side of the screen layer, and the moving blocks are slidably blocked on the light-transmitting gaps or the on the cover part.
The display structure according to claim 1, wherein the shielding layer is arranged on either side of the screen layer, and the moving stopper is arranged on the other side of the screen layer or on the shielding layer layer.
The display structure according to claim 2, wherein the shielding layer is disposed on the side of the screen layer facing the backlight source substrate, and the shielding layer is sealed and disposed on the screen layer and the backlight between the source substrates.
The display structure according to claim 1, further comprising a pixel packaging cover plate, the pixel packaging cover plate being located on a side of the screen layer away from the backlight source substrate.
The display structure according to claim 4, wherein the pixel package cover plate is provided with a color filter structure, and the color filter structure is opposite to the light transmission gap.
The display structure according to claim 5, wherein the cross-sectional area of the color filter is greater than or equal to the cross-sectional area of the light-transmitting gap.
The display structure according to any one of claims 1 to 6, wherein the moving stopper has a super-smooth surface, the side of the screen layer facing the moving stopper also has a super-smooth surface, and the The moving stopper is in super sliding contact with the screen layer.
The display structure according to claim 7, wherein a driving electrode for driving the moving block to move is further provided.
The display structure according to any one of claims 1 to 6, wherein the screen layer is light-transmitting, and both the shielding layer and the moving block are light-tight.
A display, characterized in that it comprises the display structure according to any one of claims 1 to 9.