CN216561294U - Display module - Google Patents
Display module Download PDFInfo
- Publication number
- CN216561294U CN216561294U CN202123134849.2U CN202123134849U CN216561294U CN 216561294 U CN216561294 U CN 216561294U CN 202123134849 U CN202123134849 U CN 202123134849U CN 216561294 U CN216561294 U CN 216561294U
- Authority
- CN
- China
- Prior art keywords
- layer
- display
- unit
- absorption axis
- display module
- 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
Landscapes
- Polarising Elements (AREA)
Abstract
A display module is provided, which is divided into a visible area and a non-visible area and comprises a display unit and a shading unit. The display unit is located in the visual area and comprises a display layer with a light emergent side and at least one polarizing layer arranged on the light emergent side. The light shielding unit comprises a linear polarizing film at least arranged on the display unit and a light shielding layer arranged on the linear polarizing film and positioned in the non-visible area, and an included angle between an absorption axis of the linear polarizing film and an absorption axis of the polarizing layer is not more than 45 degrees. The included angle between the absorption axis of the linear polarizing film and the absorption axis of the adjacent polarizing layer is not more than 45 degrees, so that the linear polarizing film and the polarizing layer which are overlapped have good transmittance, and the color difference between the visible area and the non-visible area is reduced when the display module does not display images, so that the integral black visual effect is achieved.
Description
Technical Field
The utility model relates to a display module especially relates to an outward appearance is integrative black display module.
Background
In modern life, lcd screens are widely used in vehicle control panels, instrument panels, or other control panels of household appliances due to their advantages of low power consumption and high color intensity. As the technology development of the lcd screen is becoming mature, in addition to the improvement of the performance, the manufacturers and consumers also pursue the visual effect of the lcd screen appearance. Therefore, in the case of not displaying an image, how to make the appearance of the image display area and the non-image area of the liquid crystal display panel closer to the visual effect of black integration is one of the objectives in the industry.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a display module which can present a black-in-one visual effect.
The display module of the utility model is divided into a visible area and a non-visible area, and comprises a display unit and a shading unit.
The display unit is located in the visual area and comprises a display layer and at least one polarizing layer arranged on the display layer, the display layer is provided with a light-emitting side capable of displaying pictures, and the polarizing layer is arranged on the light-emitting side.
The light shielding unit comprises a linear polarizing film at least arranged on the polarizing layer and a light shielding layer arranged on the linear polarizing film and positioned in the non-visual area, and an included angle between an absorption axis of the linear polarizing film and an absorption axis of an adjacent polarizing layer of the display unit is not more than 45 degrees.
Preferably, in the display module of the present invention, the linearly polarized film covers the visible region and the non-visible region and covers the light shielding layer.
Preferably, in the display module of the present invention, an included angle between an absorption axis of the linear polarizing film and an absorption axis of an adjacent polarizing layer of the display unit is 30 to 45 degrees.
Preferably, in the display module of the present invention, the total transmittance of the linear polarizing film of the light shielding unit and the adjacent polarizing layer of the display unit with respect to light is not less than 45%.
Preferably, the display module of the present invention further includes an anti-reflection unit, wherein the anti-reflection unit includes a protection layer disposed on a side of the light-shielding unit opposite to the display unit, and an anti-reflection layer disposed on the protection layer.
Preferably, the display module of the present invention further comprises a bonding unit, wherein the bonding unit includes a first bonding layer for bonding the display unit and the light shielding unit, and a second bonding layer for bonding the light shielding unit and the anti-reflection unit.
Preferably, the display unit of the present invention includes a display layer, and two polarizing layers respectively disposed on two opposite sides of the display layer, and an included angle between an absorption axis of the polarizing layer disposed on the light exit side and an absorption axis of the linear polarizing film is not greater than 45 degrees.
The utility model has the beneficial effects that: the display module is characterized in that a linear polarizing film is arranged on the display unit, and the included angle between the absorption axis of the linear polarizing film and the absorption axis of the adjacent polarizing layer of the display unit is not more than 45 degrees, so that the display unit can keep good penetration rate when being started, and the color difference between the visible area and the non-visible area is reduced when the display unit is not started, so that the appearance of the display module can present a visual effect which is closer to the same black integration.
Drawings
FIG. 1 is a schematic side view illustrating an embodiment of a display module of the present invention;
fig. 2 is a schematic top view illustrating the relative positions of the absorption axis of the polarizing layer and the absorption axis of the linear polarizing film of the display module of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that the drawings of the present invention are merely for showing the relative relationship of the structures and positions of the elements, and do not relate to the actual sizes of the elements.
Referring to fig. 1 and 2, the display module according to the embodiment of the utility model is divided into a visible area VA and a non-visible area NA. The display module includes a display unit 2, a light shielding unit 3, an anti-reflection unit 4, and a coupling unit 5. In this embodiment, the non-visible area NA is formed at a side of the visible area VA. However, the distribution positions of the non-visible area NA and the visible area VA may have different patterns according to design requirements, for example, the non-visible area NA may surround the visible area VA, and is not limited by the pattern shown in the drawings.
In this embodiment, the display unit 2 is a liquid crystal display (see fig. 1), and includes, for example, the display layer 21 and two polarizing layers 22 respectively disposed on two opposite sides of the display layer 21, the display layer 21 is a lamination structure and has a liquid crystal layer, color filter layers respectively disposed on two opposite sides of the liquid crystal layer, and a driving layer having a thin film transistor, and the light emitting side 211 is located on one side of the display layer 21 adjacent to the color filter layers, so that the two polarizing layers 22 are respectively disposed on the color filter layers and the outside of the driving layer, and absorption axes thereof are 90 degrees apart from each other. Since other detailed structures of the lcd are well known in the art, further description is omitted here.
In some embodiments, the display unit 2 may also be an Organic Light Emitting Diode (OLED) display. At this time, the display layer 21 of the display unit 2 is of an organic light emitting diode structure, and only the light emitting side 211 of the display layer 21 needs to be disposed on a single polarizing layer 22, which is not limited to this embodiment.
In addition, the non-visible area NA may be configured with other electronic components (not shown) such as a driving control circuit and the like for controlling or activating the display unit 2, and since the electronic components may be different according to actual control requirements and are well known in the art, further description is omitted herein.
The light shielding unit 3 includes at least a linear polarization film 31 disposed on the adjacent polarization layer 22, and a light shielding layer 32 disposed on the linear polarization film 31 and located in the non-visible area NA, and an included angle between an absorption axis of the linear polarization film 31 and an absorption axis of the adjacent polarization layer 22 of the display unit 2 is not greater than 45 degrees.
In the present embodiment, the linear polarization film 31 covers both the visible area VA and the non-visible area NA, and covers the light shielding layer 32. The linear polarizing film 31 has the same structure and material as the polarizing layer 22, and is a laminated structure composed of a polyvinyl alcohol film adsorbing iodine and two cellulose triacetate fiber layers respectively disposed on both sides of the polyvinyl alcohol film. The light-shielding layer 32 is made of opaque material (e.g., black ink), so that the display unit 2 can only display images from the range of the visible area VA.
Fig. 2 illustrates the relative positions of the absorption axis direction a1 of the polarizing layer 22 disposed on the light-emitting side 211 and the absorption axis direction a2 of the linear polarizing film 31, and the included angle I of the absorption axis directions a1 and a2 (i.e., the included angle of the absorption axes of the linear polarizing film 31 and the adjacent polarizing layers 22). In detail, the light shielding unit 3 is disposed on the light emitting side 211 of the display unit 2, and the included angle between the absorption axes of the polarizing layer 22 disposed on the light emitting side 211 and the linear polarizing film 31 of the light shielding unit 3 is not greater than 45 degrees, so as to ensure that the total transmittance of light passing through the linear polarizing film 31 and the polarizing layer 22 stacked on each other is not lower than 45% when the display unit 2 is started. Preferably, the angle between the absorption axis of the linear polarizer 31 and the absorption axis of the adjacent polarizing layer 22 of the display unit 2 (corresponding to the angle I in fig. 2) is between 30 degrees and 45 degrees, and the total transmittance of light passing through the stacked linear polarizer 31 and the polarizing layer 22 is between 45% and 68%, so as to avoid the problem of insufficient brightness.
The antireflection unit 4 has translucency and includes a protective layer 41 disposed on a side of the light shielding unit 3 opposite to the display unit 2, and an antireflection layer 42 disposed on the protective layer 41. In the embodiment, the protection layer 41 is selected from a glass cover plate, and the Anti-reflection layer 42 is selected from a polyethylene terephthalate (PET) film coated with an Anti-glare-hardening (AGHC) layer. The protective layer 41 covers the linear polarization film 31 to prevent the linear polarization film 31 from being damaged or falling off from the display unit 2. The antireflection layer 42 can reduce the internal reflection of the light emitted from the display unit 2, thereby improving the light-emitting rate and improving the brightness, chromaticity or contrast value of the image displayed by the display module.
In detail, since the polarizing layer 22, the linear polarizing film 31 and the protection layer 41 made of materials with different refractive indexes are stacked on one surface of the display layer 21 for displaying light, light passing through the film interfaces made of different materials will undergo different degrees of internal reflection and refraction, which may interfere with the display image (such as chromaticity, brightness or contrast ratio) of the display unit 2. Therefore, the anti-reflection layer 42 is arranged, so that the light passes through the anti-reflection layer 42, and the reflected light causes destructive interference to other reflected light, thereby further counteracting the influence caused by the reflected light among different film layers.
The bonding unit 5 includes a first bonding layer 51 for bonding the display unit 2 and the light shielding unit 3, and a second bonding layer 52 for bonding the light shielding unit 3 and the antireflection unit 4. In the present embodiment, the first bonding layer 51 is selected from Liquid optical adhesive (LOCA), and the second bonding layer 52 is selected from Pressure Sensitive Adhesive (PSA).
It should be noted that, in some embodiments, the light shielding unit 3 may be disposed only on the display unit 2, without disposing the coupling unit 5 and/or the anti-reflection unit 4.
When the display module does not display an image (i.e., when the display unit 2 is not started), the colorimetric value detection is performed, and the colorimetric value detection result is arranged in table 1.
In this embodiment, the colorimetric value detection is performed by using a spectroscopic colorimeter (model: CM700d, Konica Minolta) from a side of the display module near the light shielding unit 3, and performing measurement corresponding to the positions of the visible area VA and the non-visible area NA, respectively, and performing colorimetric value detection in two colorimetric modes, i.e., a Specular Component Intensity (SCI) mode and a Specular component intensity (SCE) mode, at the same position, to obtain colorimetric values L, a, and b. The chromaticity value L represents the luminance (the higher the value, the brighter the color); the chromaticity value a represents the degree of red and green (the higher the value, the more red (+) the color is represented, and the lower the value, the more green (-) the color is represented); the chromaticity value b represents the chromaticity of yellow-blue (the higher the value, the more toward yellow (+) the color is represented, and the lower the value, the more toward blue (-)).
Then, the chrominance values (L, a, b) measured in the visible area VA and the non-visible area NA respectively are calculated according to the following formula: Δ E √ (Δ L ^2 +. DELTA a ^2 +. DELTA b ^2) is calculated to obtain a Δ E value representing the color difference exhibited by the display module in the visible region VA and the non-visible region NA.
TABLE 1
In this embodiment, the display module performs chromaticity value detection in two different chromaticity modes (i.e., including the mirror surface normal reflection light mode and excluding the mirror surface normal reflection light mode) through the spectroscopic colorimeter, and both the measured Δ E values of the visible region VA and the non-visible region NA are not greater than 2, so that a black-in-one visual effect can be achieved, and it can be known from table 1 that, when the display unit 2 is not started, the color difference between the two regions is very small (the measured Δ E values in the two chromaticity modes are both less than 1), and the visible region VA and the non-visible region NA are not easily distinguished by naked eyes, so the display module of this embodiment has a good black-in-one visual effect.
In summary, by disposing the linear polarizing film 31 on the display unit 2, and the included angle between the absorption axis of the linear polarizing film 31 and the absorption axis of the adjacent polarizing layer 22 of the display unit 2 is not greater than 45 degrees, the linear polarizing film 31 and the adjacent polarizing layer 22 can maintain good transmittance when the display unit 2 is activated, and when the display unit 2 is not activated, the color difference between the visible area VA and the non-visible area NA is very small, so as to achieve the effect of blackish-black vision, and thus the purpose of the present invention can be achieved.
Claims (7)
1. A display module, distinguish visible region and non-visible region, its characterized in that: comprises the following steps:
the display unit is positioned in the visible area and comprises a display layer and at least one polarizing layer arranged on the display layer, the display layer is provided with a light emergent side capable of displaying pictures, and the polarizing layer is arranged on the light emergent side; and
and the light shielding unit comprises a linear polarizing film at least arranged on the polarizing layer and a light shielding layer arranged on the linear polarizing film and positioned in the non-visible area, and the included angle between the absorption axis of the linear polarizing film and the absorption axis of the adjacent polarizing layer of the display unit is not more than 45 degrees.
2. The display module of claim 1, wherein: the linearly polarized film covers the visible region and the non-visible region and covers the light shielding layer.
3. The display module of claim 1, wherein: an included angle between an absorption axis of the linear polarizing film and an absorption axis of an adjacent polarizing layer of the display unit is 30 to 45 degrees.
4. The display module of claim 1, wherein: the linear polarizing film of the light shielding unit and the adjacent polarizing layer of the display unit have a total transmittance of not less than 45% for light.
5. The display module of claim 1, wherein: the display device also comprises an anti-reflection unit, wherein the anti-reflection unit comprises a protective layer arranged on one side of the shading unit opposite to the display unit and an anti-reflection layer arranged on the protective layer.
6. The display module of claim 5, wherein: the display device further comprises a bonding unit, wherein the bonding unit comprises a first bonding layer for bonding the display unit and the shading unit, and a second bonding layer for bonding the shading unit and the anti-reflection unit.
7. The display module of claim 1, wherein: the display unit comprises a display layer and two polarizing layers which are respectively arranged on two opposite sides of the display layer, and an included angle formed between an absorption axis of the polarizing layer on the light emergent side and an absorption axis of the linear polarizing film is not more than 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123134849.2U CN216561294U (en) | 2021-12-14 | 2021-12-14 | Display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123134849.2U CN216561294U (en) | 2021-12-14 | 2021-12-14 | Display module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216561294U true CN216561294U (en) | 2022-05-17 |
Family
ID=81543786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123134849.2U Active CN216561294U (en) | 2021-12-14 | 2021-12-14 | Display module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216561294U (en) |
-
2021
- 2021-12-14 CN CN202123134849.2U patent/CN216561294U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10067343B2 (en) | Liquid crystal display device for head-up display device, and head-up display device | |
| US6577361B1 (en) | Liquid crystal display | |
| KR101853976B1 (en) | Display and electronic unit | |
| US9772531B2 (en) | Color liquid crystal display panel | |
| US20110279757A1 (en) | Display device | |
| JP3767255B2 (en) | Liquid crystal device and electronic device | |
| EP1184713A2 (en) | Liquid crystal display device | |
| CN112859426B (en) | Display panel and display device | |
| US8040475B2 (en) | Reflective morphable display device and method of feature activation | |
| US11199741B2 (en) | Display device | |
| JP6059830B1 (en) | Image display device | |
| CN107003555B (en) | Liquid crystal display device having a plurality of pixel electrodes | |
| US20200050039A1 (en) | Image display device | |
| CN101363929B (en) | Color compensation multi-layered member for display apparatus, optical filter and display apparatus | |
| KR20150020504A (en) | Display device and electronic device | |
| KR102566258B1 (en) | Wavelength Selective Transmission Filter Member and Liquid Crystal Display Panel having the same | |
| CN113253528A (en) | Array substrate, reflective display panel and reflective display device | |
| TWM625156U (en) | display module | |
| CN216561294U (en) | Display module | |
| KR20220100956A (en) | Display with passive display area | |
| JP5624014B2 (en) | Liquid crystal display | |
| US20200319515A1 (en) | Display device | |
| JP6600612B2 (en) | Image display device | |
| CN113031327A (en) | Display and manufacturing method thereof | |
| TW202109257A (en) | Touch display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |