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CN-122024585-A - Anti-glare display glass cover plate

CN122024585ACN 122024585 ACN122024585 ACN 122024585ACN-122024585-A

Abstract

The invention discloses an anti-dazzle display glass cover plate, which belongs to the technical field of display glass and comprises a cover plate body, wherein the cover plate body is provided with a concave-convex anti-dazzle surface formed by a plurality of particles, and the anti-dazzle display glass cover plate is characterized in that the haze of the anti-dazzle surface is 25-35, the surface roughness Ra is 0.1-0.2 mu m, the surface particle size is 3-15 mu m, and the surface particle spacing is 6-7.7nm. By the cooperative optimization and accurate control of the microstructure parameters of the anti-dazzle surface, the remarkable balance of anti-dazzle performance and visual definition is realized, the common flash point effect in a high-resolution display screen is effectively restrained, and excellent anti-reflection and visual comfort are maintained.

Inventors

  • MA QINLIANG
  • ZHANG ERFEI

Assignees

  • 重庆宣宇光电科技有限公司

Dates

Publication Date
20260512
Application Date
20260224

Claims (9)

  1. 1. An anti-dazzle display glass cover plate comprises a cover plate body, wherein the cover plate body is provided with a concave-convex anti-dazzle surface formed by a plurality of particles, and is characterized in that the haze of the anti-dazzle surface is 25-35, the surface roughness Ra is 0.1-0.2 mu m, the surface particle size is 3-15 mu m, and the surface particle spacing is 6-7.7nm.
  2. 2. The antiglare display glass cover sheet according to claim 1, wherein the cover sheet body has a thickness of 0.4 to 0.55mm, the antiglare surface has a haze of 28 to 32, a surface roughness Ra of 0.1 to 0.2 μm, a surface particle size of 4 to 10 μm, and a surface inter-particle distance of 6 to 7.5nm.
  3. 3. The antiglare display glass cover of claim 2 wherein the surface particles have a particle size of from 8 to 10 μm comprise at least 60%.
  4. 4. The antiglare display glass cover of claim 3 wherein the surface particles are irregularly polygonal.
  5. 5. The antiglare display glass cover according to claim 3, wherein the antiglare surface has a maximum profile peak height Rp of at most 0.72 μm and a maximum profile valley depth Rv of at most 0.73 μm.
  6. 6. The antiglare display glass cover plate of claim 1, wherein the antiglare surface has a ten-point height Rz of 1.3 to 1.6 μm.
  7. 7. The antiglare display glass cover of claim 6 wherein the antiglare surface has a profile with a mean peak spacing Rs of from 0.02 to 0.03 μm.
  8. 8. The antiglare display glass cover of claim 7 wherein the antiglare surface has a light transmittance of from 90% to 92%.
  9. 9. The antiglare display glass cover of claim 1 wherein the antiglare surface has a gloss of from 15 to 35GU.

Description

Anti-glare display glass cover plate Technical Field The invention relates to the technical field of display glass, in particular to an anti-dazzle display glass cover plate. Background An Anti-glare glass Cover (AG glass Cover for short) is an optical glass subjected to special surface treatment, and is widely applied to the fields of display equipment, touch panels, electronic whiteboards, high-end displays, medical equipment, vehicle-mounted display, industrial control terminals and the like. The core function of the glass is that a nanoscale coarse structure (such as chemical etching, sand blasting or optical coating) is introduced into the surface of the glass, so that incident light is diffusely reflected instead of specularly reflected, the intensity of surface reflected light is remarkably reduced, the interference of ambient light is reduced, and the visibility and visual comfort in a strong light environment are improved. Compared with common glass, AG glass can reduce the surface light reflectivity, effectively inhibit specular reflection, reduce the irritation of glare to human eyes, relieve visual fatigue and play a good role in protecting eyes of users. This feature makes it particularly advantageous in high brightness environments (e.g., outdoor, office glare). However, with the continuous progress of display technology, the screen resolution is continuously improved (such as 4K and 8K ultra-high definition display), and the AG glass cover plate gradually exposes a technical problem that cannot be ignored in practical application, namely a flash point phenomenon (also called as 'sparkle' or 'GRAINY EFFECT'). When the microscopic concave-convex structure on the AG glass surface is applied to high-resolution display equipment, a large number of tiny scattering points can be formed, so that local brightness is uneven, fine bright and dark alternate spots or granular feel are presented, and a user is easy to cause visual discomfort, fatigue and dizziness after watching for a long time. The inventors found that there is a certain relationship between the antiglare property of the etched AG glass and the flash point phenomenon, i.e., the greater the surface roughness, the better the antiglare effect, but the more pronounced the flash point, whereas if the roughness is reduced to reduce the flash point, the antiglare property is reduced. Therefore, it is urgently required to design an anti-glare display glass cover plate capable of effectively reducing flash point. Disclosure of Invention The invention aims to provide an anti-dazzle display glass cover plate, which solves the problem of flash point when the anti-dazzle display glass cover plate is applied to high-resolution display equipment in the prior art. In order to achieve the above purpose, the invention adopts the following technical scheme: An anti-dazzle display glass cover plate comprises a cover plate body, wherein the cover plate body is provided with a concave-convex anti-dazzle surface formed by a plurality of particles, and is characterized in that the haze of the anti-dazzle surface is 25-35, the surface roughness Ra is 0.1-0.2 mu m, the surface particle size is 3-15 mu m, and the surface particle spacing is 6-7.7nm. Preferably, the thickness of the cover plate body is 0.4-0.55mm, the haze of the anti-dazzle surface is 28-32, the surface roughness Ra is 0.15-0.19 mu m, the surface particle size is 4-10 mu m, and the surface particle spacing is 6-7.5nm. Preferably, the surface particles having a particle size of 8-10 μm comprise at least 60%. Preferably, the surface particles are irregularly polygonal. Preferably, the maximum profile peak height Rp of the antiglare surface is 0.72 μm and the maximum profile valley depth Rv is 0.73 μm. Preferably, the ten-point height Rz of the antiglare surface is 1.3 to 1.6 μm. Preferably, the average spacing Rs of the profile unipeaks of the antiglare surface is from 0.02 to 0.03 μm. The advantage of this scheme is: The anti-dazzle display glass cover plate provided by the invention realizes remarkable balance of anti-dazzle performance and visual definition through cooperative optimization and accurate control of microstructure parameters of an anti-dazzle surface, effectively inhibits common flash point effect in a high-resolution display screen, simultaneously keeps excellent anti-reflection and visual comfort, and has the following advantages: 1. effectively inhibit flash point phenomenon and improve display image quality The invention avoids the problem of strong scattering concentration caused by too dense or too coarse particles in the traditional AG glass by limiting the surface particle size to 3-15 mu m (preferably 4-10 mu m) and controlling the inter-particle distance to 6-7.7nm (preferably 6-7.5 nm). The scale design ensures that the scattering angle distribution of incident light is more uniform, and reduces the interference effect with a high-density pixel array, thereby obviously red