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Display device, manufacturing method thereof, and manufacturing device

A display device and display surface technology, which is applied to instruments, nonlinear optics, optics, etc., can solve problems such as insufficient correction of bright spot defects, light leakage, and thinning of the scanning section, and achieve the effect of suppressing bright spot defects

Active Publication Date: 2022-03-15
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the prior art, when a colored layer is formed by surface scanning of a laser, the final scanning part becomes thinner, light leakage occurs, and defects due to bright spot defects cannot be sufficiently corrected.

Method used

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  • Display device, manufacturing method thereof, and manufacturing device
  • Display device, manufacturing method thereof, and manufacturing device
  • Display device, manufacturing method thereof, and manufacturing device

Examples

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Effect test

Embodiment approach 1

[0099] figure 1 It is a plan view showing the overall configuration of a liquid crystal display device LCD as an example of the display device according to Embodiment 1 of the present invention.

[0100] The liquid crystal display device LCD includes: a display panel DP for displaying images, a display panel drive circuit (data line drive circuit 30, gate line drive circuit 31) for driving the display panel DP, and a control circuit (not shown) for controlling the display panel drive circuit. ) and a backlight 134 that illuminates the backlight that irradiates light to the display panel DP from the rear side.

[0101] figure 2 It is a plan view showing the configuration of a part of the display panel DP. image 3 is in figure 2 The end view of the cut part cut at the line A1-A2 of . In addition, in figure 2 as well as image 3 , represents a pixel P in the display panel DP.

[0102] like image 3 As shown, the display panel DP includes: a thin film transistor substr...

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Abstract

The present invention provides a display device capable of suppressing a decrease in display quality caused by bright spot defects, a manufacturing method, and a manufacturing device thereof. The display device (LCD) includes: a first glass substrate (SUB1), and a second glass substrate (SUB2) facing the first glass substrate and positioned on the display surface side, at least one of the first glass substrate and the second glass substrate The inside of the person has a dimming part (1) that covers the bright spot defect part (133) when viewed from the display surface side. Viewed from the display surface side, the dimming part is at one end (B) of the dimming part and has visible light. For the linear transmissive portion (7) whose transmittance is higher than that of other regions (1g) of the light-reducing portion, the cross-section of the light-reducing portion in the thickness direction perpendicular to the longitudinal direction of the linear transmissive portion is more The coloring layers (2-1, 2-2) are continuous and bent in the shape of a folded line, and the transparent part is located at the bent end (47) of the folded line.

Description

technical field [0001] The present invention relates to a display device, a manufacturing method thereof, and a manufacturing device. Background technique [0002] Among various display devices, for example, a liquid crystal display device drives the liquid crystal by applying an electric field generated between the pixel electrode and the common electrode to the liquid crystal layer sandwiched by a pair of substrates, thereby adjusting the transmission between the pixel electrode and the common electrode. The amount of light in the area for image display. [0003] Conventionally, for example, in liquid crystal display devices, there has been known a problem of so-called bright spot defects (also referred to as pixel defects) in which the display luminance of pixels is higher than desired. The bright spot defect occurs, for example, when foreign matter is mixed between a pair of substrates during the manufacturing process of the liquid crystal display device, and the alignm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13G02F1/1333G02F1/1335
CPCG02F1/1309G02F1/1333G02F1/1335G02F1/133302G02F1/133516G02F1/133512G02F1/133519
Inventor 北村嘉朗森重之
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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